——再生聚醚醚酮应用、等级、性能与颜色全参考（含2026-09-11报价单样本数据及PEEK/PEI/PPSU对比）
1 概述
1.1 什么是再生PEEK
PEEK 即聚醚醚酮（Polyether Ether Ketone，CAS 31694-16-3），属 PAEK 家族中商业化最成功的半结晶型芳香族热塑性工程塑料。其分子链由芳香环经醚键与酮基交替连接，本色为天然浅棕/琥珀色半透明。核心物性为：熔点 Tm 约 343℃、玻璃化温度 Tg 约 143℃、连续使用温度约 250℃；未填充密度约 1.30 g/cm³、拉伸强度约 98–100 MPa、弯曲模量约 3.8 GPa、简支梁缺口冲击约 5.0 kJ/m²。本征阻燃，UL94 V-0（薄至1.5 mm），不需外加阻燃剂；耐磨自润滑、耐绝大多数有机溶剂与酸碱，仅被浓硫酸等强氧化剂侵蚀；耐水解、可承受 134℃ 蒸汽反复灭菌超过 1000 次。熔体加工温度约 360–400℃，成型前须 ≥150℃ 干燥 4 小时以上。
再生PEEK（rPEEK）指对 PEEK 制造过程边角料与终端报废件进行分选、洗涤、双螺杆挤出造粒后再利用的料，来源分两类：PIR（工业后料，机加工屑料/注塑水口料/流道料，纯度高、可溯源，是再生PEEK主要来源，约占循环PEEK市场 74.8%）与 PCR（消费后料，报废航空/医疗/电子件，来源杂、污染大）。
1.2 核心价值
再生PEEK相对原生料价格低 80%–90%：原生工业级约 30–80 万元/吨，而再生料仅约 4.5–8 万元/吨，价差达 5–10 倍。在欧盟 ELV、WEEE 与国内再生塑料标准趋严、医疗与航空 OEM 要求供应链可追溯的政策驱动下，PIR 料成为高价值回收与降本的方向。但需强调：再生料流动性上升、韧性下降、杂质敏感，目前主要降级用于非关键耐磨/厚壁结构件，不得进入医疗植入、半导体洁净与高可靠航空件。
1.3 重要区分：PEEK vs PEI vs PPSU
三者外观均呈琥珀色，但分子结构与性能定位完全不同，不可混用数字。PEEK 是半结晶、有熔点（Tm 343℃）的高温全能王，价格居前；PEI、PPSU 为无定形透明料，无熔点（仅有 Tg）。回收时三者极易混淆，必须靠 FTIR 红外光谱鉴别。
表 0 PEEK / PEI / PPSU 三者对比（不可混用数字）
| 对比维度 | PEEK 聚醚醚酮 | PEI 聚醚酰亚胺 | PPSU 聚亚苯基砜 |
|---|
| 结晶形态 | 半结晶 | 无定形 | 无定形 |
| 熔点 Tm | 343℃ | 无熔点（仅Tg） | 无熔点（仅Tg） |
| 玻璃化温度 Tg | 143℃ | 约217℃ | 约220℃ |
| 连续使用温度 | 约250℃ | 约170–180℃ | 约180℃ |
| 拉伸强度（未填充） | 约98–100 MPa | 约105 MPa | 约70–74 MPa |
| 缺口冲击 | 约5.0 kJ/m²（偏韧） | 中等 | 韧性突出 |
| 市场价格（原生，2026） | 居三者前列，约30–80万元/吨 | 约25–28万元/吨 | 约27–29万元/吨 |
| 代表品牌 | Victrex、Solvay KetaSpire、Evonik VESTAKEEP、中研ZYPEEK | SABIC Ultem、DuPont | Solvay Radel、BASF Ultrason P |
| 典型应用 | 航空结构件、半导体CMP保持环、骨科植入物、耐磨轴承保持架 | 电子连接器、飞机内饰、灯具 | 高端奶瓶、手术器械托盘、反复消毒医疗件 |
2 应用领域与具体产品
2.1 航空航天（表1）
PEEK 比金属轻、耐 250℃、耐燃油与液压油、抗疲劳，用于减重替代钛/铝的结构与功能件，是再生PEEK在高端领域降级使用边界较敏感的板块。
表 1 航空航天领域具体产品与选材特征
| 序号 | 具体产品 | 选材特征 |
|---|
| 1 | 复合材料预浸料 | 耐高温、与碳纤维复合减重，耐燃油液压油 |
| 2 | 线缆护套 | 耐250℃、绝缘、低释气、抗疲劳 |
| 3 | 紧固件 | 替代钛/铝减重，高强耐蚀、不松脱 |
| 4 | 舱内结构件 | 比金属轻、抗疲劳，满足航空阻燃要求 |
2.2 半导体 + 石油天然气（表2）
半导体方向要求耐高温、耐酸碱 CMP 浆料、超低金属析出与颗粒污染；石油天然气方向要求耐井下高温高压与油气腐蚀。注意：半导体高真空洁净件对金属析出极敏感，通常禁用再生料。
表 2 半导体与石油天然气领域具体产品与选材特征
| 序号 | 领域 | 具体产品 | 选材特征 |
|---|
| 1 | 半导体 | CMP保持环（retaining ring） | 耐CMP浆料、超低金属析出、高尺寸稳定 |
| 2 | 半导体 | 晶圆载具（FOUP/POD导轨） | 低释气、颗粒污染极低、高温不变形 |
| 3 | 半导体 | 密封件、真空腔体导向条 | 高真空低释气、耐磨自润滑 |
| 4 | 石油天然气 | 井下工具 | 耐井下高温高压、耐油气腐蚀 |
| 5 | 石油天然气 | 密封件、阀座 | 自润滑、耐油气、长期承压可靠 |
2.3 汽车 + 医疗（表3）
汽车方向用耐油耐温、低噪音替代金属降本减重；医疗方向利用其弹性模量接近皮质骨、X射线可透、无金属伪影、可蒸汽灭菌的生物惰性。特别提示：骨科长期植入件（脊柱/关节）受 ASTM F2026 与 ISO 10993 约束，法规上必须使用原生医疗级树脂，禁用任何再生料。
表 3 汽车与医疗领域具体产品与选材特征
| 序号 | 领域 | 具体产品 | 选材特征 |
|---|
| 1 | 汽车 | 变速箱轴承保持架 | 耐油耐温、低噪音、自润滑 |
| 2 | 汽车 | 发动机舱部件 | 耐油耐温、替代金属降本减重 |
| 3 | 医疗 | 骨科植入物（脊柱融合器/关节/创伤板） | 弹性模量接近皮质骨、X射线可透、可蒸汽灭菌（植入级禁用再生料） |
| 4 | 医疗 | 手术器械、反复消毒器械 | 耐134℃蒸汽反复灭菌>1000次、生物相容 |
2.4 电子电气（表4）
电子电气方向取其 UL94 V-0 自熄、高温尺寸稳定与绝缘性能。
表 4 电子电气领域具体产品与选材特征
| 序号 | 具体产品 | 选材特征 |
|---|
| 1 | 连接器 | UL94 V-0自熄、高温绝缘、尺寸稳定 |
| 2 | 线圈骨架 | 耐高温绝缘、低介电损耗 |
| 3 | 插座绝缘件 | 本征阻燃、耐电弧、长期尺寸稳定 |
3 行业等级体系
再生PEEK现行归口执行 GB/T 40006.1-2021《塑料 再生塑料 第1部分：通则》——该系列目前无 PEEK 专项；PEEK 材料本身的本国国标为 GB/T 41873-2022《塑料 聚醚醚酮（PEEK）树脂》与 GB/T 46197.2-2025《模塑和挤出材料 第2部分：试样制备和性能测定》。行业内再按纯度、用途、改性与颜色多维度分级，国内外主流牌号体系如下。
表 5 再生PEEK行业等级体系总览
| 分级维度 | 具体等级/牌号 | 说明 |
|---|
| 再生料国标 | GB/T 40006.1-2021 通则 | 再生塑料系列已发布.1/.2PE/.3PP/.5ABS/.13PPE等，无PEEK专项，故PEEK执行.1通则 |
| PEEK材料国标 | GB/T 41873-2022；GB/T 46197.2-2025 | 41873-2022为PEEK树脂国标（2023-05-01实施）；46197.2-2025为试样制备与性能测定（2026-03-01实施） |
| 按纯度 | 特级 / 一级 / 二级 | 杂质、黑点、分子量分布与批次稳定性划分 |
| 按用途 | 通用 / 医疗植入 / 食品接触 / 半导体洁净 | 植入级须原生医疗级、禁用再生；半导体洁净级对金属析出极敏感 |
| 按改性 | 未填充 / 玻纤GF / 碳纤CF / 耐磨bearing | GF30高刚性、CF30高强度、FC自润滑耐磨 |
| 按颜色 | 天然琥珀 / 黑色 / 增强色 | 本色价居前，碳黑调色多用于耐磨/轴承级 |
| Victrex（英国） | 450G / 90G / 150G / 450GL30 / 450CA30 / PEEK-OPTIMA | 450G标准注塑级；450GL30玻纤30%；450CA30碳纤30%；OPTIMA为旗下Invibio医疗植入级 |
| Solvay（比利时） | KetaSpire KT-880 等 | 通用高流动；另有KT-880SL30耐磨级、AV-651 CF30碳纤级 |
| Evonik（德国） | VESTAKEEP i4 G / 4000 FC30 等 | i4 G高粘度长期植入专用；FC30自润滑耐磨 |
| 中研（国产） | ZYPEEK 550G / 770G 等 | 国内产销居前，550G/770G替代PPS用于半导体CMP等场景 |
4 性能指标
4.1 原生与再生对比
表 6 原生 PEEK（Victrex 450G 未填充）典型性能值
| 指标 | 典型数值 | 测试方法/条件 |
|---|
| 密度 | 约1.30 g/cm³ | ISO 1183 |
| 拉伸强度（屈服） | 约98–100 MPa | ISO 527 |
| 弯曲模量 | 约3.8 GPa | ISO 178 |
| 简支梁缺口冲击 | 约5.0 kJ/m² | ISO 179 |
| 熔点 Tm / 玻璃化 Tg | 343℃ / 143℃ | ISO 11357-3 / 11357-2 |
| 连续使用温度 | 约250℃ | 20000小时空气老化 |
| 阻燃等级 | UL94 V-0（1.5mm） | UL94 |
| 吸水率（24h） | 约0.05% | ISO 62 |
| MFR | 约30–33 g/10min | 400℃ / 2.16kg（ISO 1133） |
| 成型熔体温度 | 360–400℃ | 注塑/挤出 |
表 7 再生PEEK性能变化（典型值）
| 变化维度 | 再生后表现 |
|---|
| 分子量 | 每经历一次热加工循环，分子量约下降10–20%（分子链断裂） |
| 拉伸强度 | 经3次标准机械回收后，拉伸强度典型下降8–12% |
| 结晶度/流动性 | 流动性略升，韧性/冲击下降；3D打印未烧结粉末重复使用会变黄、流动性变差 |
| 外观颜色 | 颜色加深（浅棕→黄→褐→黑），多次加工出现黄变褐变 |
| 杂质敏感度 | 极敏感——混入黑点、碳酸钙、杂料即破坏力学与耐磨 |
| 密度 | 加碳黑/玻纤后密度微升至1.4–1.5 g/cm³ |
表 8 再生降幅机理与可掺混比例
| 项目 | 内容 | 说明 |
|---|
| 降幅机理 | 反复360–400℃热加工导致分子链断裂、每循环Mw降10–20%；玻纤/碳纤回收再加工时长径比下降、增强效果衰减 | 性能降级以分子链断裂为主，不可逆 |
| PIR掺混比例 | PIR边角料以25–75wt%配适当填料体系，可维持可接受力学性能 | 工业实践区间，视件要求而定 |
| 原生refresh策略 | 常以30–50%原生新料掺混再生料，稳定分子量与流动性 | 关键件建议回料严格限量、专用设备 |
| 使用边界 | 目前主要降级使用（保护罩、支架、非关键耐磨结构件） | 医疗植入/半导体洁净/高可靠航空禁用再生料 |
4.2 按用途与改性分级
表 9 按用途与改性分级的性能/加工特点
| 分级方向 | 典型规格 | 性能/加工特点 | 典型应用 |
|---|
| 未填充纯树脂 | 450G / G0 | 韧性好、本色琥珀、价居前 | 精密件、食品接触基础色 |
| 玻纤增强 GF30 | 450GL30 | 高刚性、低翘曲、浅灰色 | 结构件、厚壁件 |
| 碳纤增强 CF30 | 450CA30 | 高强度高刚性、导电抗静电、黑色 | 高强结构、半导体导静元件 |
| 耐磨 bearing | 450FC30 / KT-880SL30 | 自润滑、低摩擦、耐磨寿命长 | 轴承保持架、齿轮、阀座 |
| 医疗植入级 | PEEK-OPTIMA / i4 G | 生物相容、须原生料、禁用再生 | 脊柱融合器、关节、创伤板 |
5 颜色体系
PEEK本色为天然浅棕/琥珀色。品级与价格总体呈：本色未填充（医疗/食品级）价格居前 → 碳纤增强 → 玻纤增强 → 工业纯料。再生料因多来自机加工屑料与水口料，本色稀缺，市面多为黑色或玻纤增强料，等级降级后价格断崖式下跌。
表 10 再生PEEK颜色体系与品级价格关系
| 颜色/品级 | 报价倾向 | 品级 | 特点 |
|---|
| 天然浅棕/琥珀色 | 报价居前 | 通用/医疗/食品级基础色 | 未填充本色树脂，较稀缺，再生料中少见 |
| 黑色（BK） | 略低于本色 | 耐磨/轴承级常用 | 添加食品级碳黑调色，弱防静电 |
| 碳纤增强黑色 | 价高 | 高强度高刚性 | CF30如450CA30，导电抗静电 |
| 玻纤增强（浅灰/偏白） | 价格居中 | 高刚性 | GF30如450GL30，再生料主流形态 |
6 市场与趋势速览
6.1 市场规模与竞争格局
按券商/产业链口径，2024年全球PEEK市场约61亿元人民币、中国约19亿元，预计2024–2027年全球CAGR约12%、中国约14%。另有咨询公司以“PEEK树脂颗粒”为口径给出2024年全球约38.7亿美元，该口径统计范围更宽、数值偏高，与人民币口径不可直接互套，引用须注明来源。
竞争格局：全球总产能已超1.4万吨/年，Victrex约7150吨（全球龙头，份额约45%）、Solvay约2500吨、Evonik约1800吨，三家占全球产能约3/4以上；国产中研股份现有约1000吨、二期5000吨/年预计2026年9月投产，合计将达约6000吨，直追国际大厂。
6.2 价格
原生价格：中研股份2024年报披露其PEEK单位售价从32.19万元/吨降至约28.70万元/吨（国产工业级）；市场流通口径工业纯料约30–50万元/吨，玻纤增强约35–55万元，碳纤增强约45–80万元，医疗级超80万元/吨；进口Victrex 450G零售折合约73–134万元/吨。再生价格仅约4.5万–8万元/吨，价差达5–10倍。成因：料源本质不同（屑料/水口料摊薄成本）、等级降级（流动升、韧性降、颜色加深）、认证缺失（无FDA/ISO10993/ASTM F2026植入背书），而原生料另含聚合+纯化+全套认证研发成本。
6.3 2026-09-11 报价单明细（2 条，可购量合计 30 吨）
表 11 再生PEEK报价单样本（来源：2026-09-11报价单）
| 序号 | 品名/规格 | 价格（元/吨） | 可购量（吨） | 品级 |
|---|
| 1 | PEEK 玻纤增强 | 45,000 | 20 | 一级 |
| 2 | PEEK:G0（未填充纯树脂） | 80,000 | 10 | 一级 |
| — | 可购量合计 | — | 30 | — |
价差解读：本批再生PEEK（4.5万–8万元/吨）仅为原生工业级（约28–50万元/吨）的1/5–1/10、医疗级（>80万元/吨）的1/10以下。该报价为一级料，已属再生PEEK中较优货源，用途应限定为非植入、非半导体洁净、非航空的工业耐磨/厚壁结构件。
6.4 PEEK / PEI / PPSU 对比（表12）
表 12 PEEK / PEI / PPSU 综合对比
| 对比维度 | PEEK 聚醚醚酮 | PEI 聚醚酰亚胺 | PPSU 聚亚苯基砜 |
|---|
| 结晶形态 | 半结晶 | 无定形 | 无定形 |
| 熔点 Tm | 343℃ | 无熔点 | 无熔点 |
| 玻璃化 Tg | 143℃ | 约217℃ | 约220℃ |
| 连续使用温度 | 约250℃ | 约170–180℃ | 约180℃ |
| 拉伸强度 | 约98–100 MPa | 约105 MPa | 约70–74 MPa |
| 缺口冲击 | 约5.0 kJ/m² | 中等 | 韧性突出 |
| 耐化学 | 极强（仅浓强酸侵蚀） | 中等 | 较好 |
| 原生价格（2026） | 30–80万元/吨，价格居前 | 约25–28万元/吨 | 约27–29万元/吨 |
| 定位 | 耐温+耐化学+可植入全能王 | 性价比无定形料 | 耐蒸汽消毒+超韧医疗透明料 |
6.5 政策法规
食品接触：PEEK专用 FDA 条款为 21 CFR 177.2415；中国须符合 GB 4806.6 / GB 4806.7；欧盟 EU 10/2011。医疗植入：须通过 ISO 10993 系列、USP Class VI、ASTM F2026，FDA 按 ISO 10993-1 做生物评价。再生体系：欧盟 ELV（报废车辆）、WEEE 推动 PIR 回收溯源；国内再生PEEK现行归口 GB/T 40006.1 通则。第三方认证包括 GRS/RCS、UL 2809（ECVP 再生含量验证）、ISCC PLUS 等。
6.6 减排数据
说明：目前尚无 PEEK 专属、公开权威的 LCA（全生命周期碳足迹）专项数据，不宜套用通用工程塑料或其他品种的减排比例。可定性表述为：PIR 边角料重造粒省去聚合与纯化环节，显著降低相对原生聚合的能耗与碳排放；具体减排吨数与碳因子待权威 LCA 报告核实后再引用。
6.7 东南亚进口渠道与料源背景
RCEP 零关税红利：越南、泰国、马来西亚、印尼、菲律宾等东盟成员对区内贸易享 RCEP 优惠关税，理论上为 PEEK 边角料/制品进出口提供通道。料源定性：PEEK 属超高价小众料，东南亚本地并无规模化 PEEK 聚合产能，来源以该地区医疗、电子、汽车代工厂产生的机加工屑料/水口料为主，或转口的欧美/日废料，料量小、批次散、纯度参差不齐。数据缺口：PEEK 无专项独立海关贸易统计口径（HS 编码层面多归入“其他聚酰胺/其他工程塑料”税号，无法单独拆分），东南亚再生PEEK具体进口量与关税率暂待核实，不宜套用通用再生塑料贸易数据。
7 文章写作切入建议
围绕再生PEEK可按以下6个主题切入系列文章，兼顾选材、成本、认证与料源视角：
表 13 再生PEEK系列文章主题与切入点
| 序号 | 系列文章主题 | 切入点 |
|---|
| 1 | 再生PEEK是什么？ | 从CAS 31694-16-3、半结晶Tm343℃讲清PEEK身份，纠偏与PEI/PPSU的混淆 |
| 2 | 再生PEEK为什么便宜5–10倍？ | 拆解原生30–80万 vs 再生4.5–8万价差成因：料源、降级、认证缺失 |
| 3 | 再生PEEK能进医疗植入吗？ | 讲透ASTM F2026/ISO10993下植入级禁用再生料的红线 |
| 4 | 再生PEEK颜色为什么多是黑的？ | 本色稀缺、碳黑调色、玻纤/碳纤增强的品级价格逻辑 |
| 5 | 3次回收后性能掉多少？ | 用Mw每循环降10–20%、拉伸3次降8–12%讲清降级边界与掺混比例 |
| 6 | 东南亚料能不能买？ | RCEP零关税、代工厂屑料料源、无专项贸易数据的尽调提示 |
8 资料来源
Victrex 官方材料数据表（450G/150G/650G）：Tm 343℃、Tg 143℃、密度、拉伸、弯曲模量、缺口冲击、UL94 等物性值。
GB/T 41873-2022《塑料 聚醚醚酮（PEEK）树脂》；GB/T 46197.2-2025《……第2部分：试样制备和性能测定》（全国标准信息公共服务平台核实）。
GB/T 40006.1-2021《塑料 再生塑料 第1部分：通则》（再生PEEK现行归口，无PEEK专项）。
ASTM F2026《外科植入用聚醚醚酮（PEEK）聚合物标准规范》；ISO 10993 系列；FDA 21 CFR 177.2415。
中研股份公开年报与公告：PEEK 单位售价由 32.19 万元/吨降至 28.70 万元/吨；现有约1000吨、二期5000吨/年预计2026年9月投产。
市场规模：券商/产业链口径2024年全球约61亿元、中国约19亿元、CAGR约12%（报告口径待核实）；咨询公司“树脂颗粒”口径2024年约38.7亿美元（口径不同，不可混用）。
竞争格局产能：Victrex约7150吨、Solvay约2500吨、Evonik约1800吨（公开报道约数，报告口径待核实）。
再生PEEK性能衰减（3次回收拉伸降8–12%、每循环Mw降10–20%）：行业技术文献与第三方回收商资料，属典型值（报告口径待核实）。
PIR占循环PEEK约74.8%：Emergen Research 引述（报告口径待核实）。
报价单：2026-09-11 报价单样本（PEEK玻纤增强45000元/吨20吨；PEEK:G0 80000元/吨10吨；合计30吨）。
东南亚渠道：定性描述；PEEK东南亚无规模化聚合产能、无专项贸易统计，具体进口量/关税率待核实。
注：标注“报告口径待核实”的数字来自网络二手报道、行业惯例或单一来源，正式对外引用前建议以厂商数据表、上市公司公告与官方标准原文二次确认。
——Comprehensive Reference for Recycled Polyether Ether Ketone Applications, Grades, Performance, and Colors (Including Quotation Sample Data as of 2026-09-11 and Comparison of PEEK/PEI/PPSU)
1 Overview
1.1 What is Recycled PEEK
PEEK, or polyether ether ketone (CAS 31694-16-3), is the most commercially successful semi-crystalline aromatic thermoplastic engineering plastic in the PAEK family. Its molecular chain consists of aromatic rings alternately connected by ether bonds and ketone groups, and its natural color is light brown/amber semi-transparent. Key properties include: melting point Tm approximately 343°C, glass transition temperature Tg approximately 143°C, continuous service temperature approximately 250°C; unfilled density about 1.30 g/cm³, tensile strength about 98–100 MPa, flexural modulus about 3.8 GPa, and notched beam impact strength about 5.0 kJ/m². It is intrinsically flame-retardant, UL94 V-0 (down to 1.5 mm), without the need for added flame retardants; wear-resistant and self-lubricating, resistant to most organic solvents and acids/bases, only corroded by strong oxidizers such as concentrated sulfuric acid; hydrolysis resistant, capable of withstanding repeated steam sterilization at 134°C over 1000 times. Melt processing temperature is approximately 360–400°C, and it must be dried at ≥150°C for more than 4 hours before molding.
Recycled PEEK (rPEEK) refers to materials that are sorted, washed, and pelletized through twin-screw extrusion from PEEK manufacturing scraps and end-of-life discarded parts for reuse. There are two sources: PIR (post-industrial recycled material, such as machining chips/injection molding sprues/runners, high purity, traceable, and the main source of recycled PEEK, accounting for about 74.8% of the recycled PEEK market) and PCR (post-consumer recycled material, such as discarded aerospace/medical/electronic parts, with mixed origins and high contamination).
1.2 Core Values
Recycled PEEK is priced 80%–90% lower than virgin material: virgin industrial-grade is about 300,000–800,000 CNY/ton, while recycled material is only about 45,000–80,000 CNY/ton, a price difference of 5–10 times. Driven by policies such as stricter EU ELV and WEEE standards, domestic recycled plastic regulations, and requirements from medical and aerospace OEMs for supply chain traceability, PIR material has become a direction for high-value recycling and cost reduction. However, it should be emphasized: recycled material has increased flowability, reduced toughness, and is sensitive to impurities. Currently, it is mainly downgraded for use in non-critical wear-resistant/thick-walled structural parts and must not enter medical implants, semiconductor cleanrooms, or high-reliability aerospace components.
1.3 Important Distinctions: PEEK vs PEI vs PPSU
All three have an amber appearance, but their molecular structures and performance characteristics are completely different, and their numbers cannot be used interchangeably. PEEK is semi-crystalline with a melting point (Tm 343°C) and is a high-temperature all-rounder, priced at the top; PEI and PPSU are amorphous transparent materials with no melting point (only a Tg). When recycling, the three are easily confused and must be identified using FTIR infrared spectroscopy.
Table 0 Comparison of PEEK / PEI / PPSU (Numbers cannot be mixed)
| Comparison Dimension | PEEK polyether ether ketone | PEI Polyetherimide | PPSU Polyphenylsulfone |
|---|
| Crystalline form | semi-crystalline | Amorphous | Amorphous |
| Melting point Tm | 343℃ | No melting point (only Tg) | No melting point (only Tg) |
| Glass transition temperature Tg | 143℃ | About 217°C | About 220°C |
| Continuous use temperature | About 250°C | About 170–180°C | About 180°C |
| Tensile Strength (Unfilled) | About 98–100 MPa | approximately 105 MPa | About 70–74 MPa |
| Gap Shock | Approximately 5.0 kJ/m² (tougher than average) | Medium | Outstanding resilience |
| Market Price (Native, 2026) | Ranks among the top three, approximately 300,000–800,000 yuan/ton | Approximately 250,000–280,000 yuan/ton | Approximately 270,000–290,000 yuan/ton |
| Representative brand | Victrex, Solvay KetaSpire, Evonik VESTAKEEP, Zhongyan ZYPEEK | SABIC Ultem, DuPont | Solvay Radel, BASF Ultrason P |
| Typical Applications | Aerospace structural components, semiconductor CMP retaining rings, orthopedic implants, wear-resistant bearing cages | Electronic connectors, aircraft interiors, lighting fixtures | High-end baby bottles, surgical instrument trays, repeatedly disinfected medical items |
2 Application Areas and Specific Products
2.1 Aerospace (Table 1)
PEEK is lighter than metal, resistant to 250℃, resistant to fuel and hydraulic oil, and fatigue-resistant. It is used to replace titanium/aluminum in structural and functional parts for weight reduction. This is a sector where regenerated PEEK is used in high-end fields with more sensitive downgrade boundaries.
Table 1 Specific Products and Material Selection Characteristics in the Aerospace Field
| Serial Number | Specific product | Material Selection Characteristics |
|---|
| One | Composite material prepreg | High temperature resistance, weight reduction when combined with carbon fiber, resistant to fuel and hydraulic oil |
| Two | Cable sheath | Resistant to 250℃, insulating, low outgassing, fatigue-resistant |
| Three | fastener | Replace titanium/aluminum for weight reduction, high strength and corrosion resistance, does not loosen |
| Four | Cabin structural components | Lighter than metal, fatigue-resistant, meets aerospace flame-retardant requirements |
2.2 Semiconductor Petroleum and Natural Gas (Table 2)
The semiconductor field requires CMP slurries that are resistant to high temperatures and acids/alkalis, with ultra-low metal precipitation and particle contamination; the oil and natural gas field requires resistance to high downhole temperature and pressure and corrosion from oil and gas. Note: Semiconductor high-vacuum clean parts are extremely sensitive to metal precipitation, and regenerated materials are usually prohibited.
Table 2 Specific Products and Material Selection Characteristics in the Semiconductor and Oil & Gas Fields
| Serial Number | field | Specific product | Material Selection Characteristics |
|---|
| One | Semiconductor | CMP retaining ring | CMP-resistant slurry, ultra-low metal deposition, high dimensional stability |
| Two | Semiconductor | Wafer carrier (FOUP/POD guide rail) | Low gas release, extremely low particle pollution, does not deform at high temperatures |
| Three | Semiconductor | Sealing elements, vacuum chamber guide strips | High vacuum low outgassing, wear-resistant and self-lubricating |
| Four | Petroleum and natural gas | Downhole tools | Resistant to high temperatures and high pressures downhole, resistant to oil and gas corrosion |
| Five | Petroleum and natural gas | Seals, valve seats | Self-lubricating, oil and gas resistant, reliable under long-term pressure |
2.3 Automobile Medical (Table 3)
In the automotive sector, it is used for steering components with oil resistance, temperature resistance, and low noise to replace metal, reducing cost and weight; in the medical field, it utilizes its elastic modulus close to cortical bone, X-ray transparency, absence of metal artifacts, and ability to be steam sterilized as a biologically inert material. Special reminder: Long-term orthopedic implants (spine/joint) are constrained by ASTM F2026 and ISO 10993, and regulations require the use of virgin medical-grade resin, forbidding any recycled materials.
Table 3 Specific Products and Material Selection Characteristics in the Automotive and Medical Fields
| Serial Number | field | Specific product | Material Selection Characteristics |
|---|
| One | Car | Transmission Bearing Cage | Oil-resistant and heat-resistant, low noise, self-lubricating |
| Two | Car | Engine compartment components | Oil-resistant and temperature-resistant, replace metal to reduce cost and weight |
| Three | Medical care | Orthopedic implants (spinal cages/joints/trauma plates) | Elastic modulus close to cortical bone, X-ray transparent, can be sterilized with steam (implant-grade recycled materials prohibited) |
| Four | Medical care | Surgical instruments, repeatedly sterilized instruments | Resistant to 134℃ steam sterilization over 1,000 times, biocompatible |
2.4 Electrical and Electronic (Table 4)
For the electronic and electrical direction, it takes UL94 V-0 self-extinguishing, high-temperature dimensional stability, and insulation performance.
Table 4 Specific Products and Material Selection Characteristics in the Electrical and Electronic Field
| Serial Number | Specific product | Material Selection Characteristics |
|---|
| One | Connector | UL94 V-0 self-extinguishing, high-temperature insulation, dimensionally stable |
| Two | coil skeleton | High-temperature resistant insulation, low dielectric loss |
| Three | Socket insulator | Intrinsic flame retardant, arc-resistant, long-term dimensional stability |
3 Industry Classification System
Recycled PEEK currently follows GB/T 40006.1-2021 'Plastics — Recycled Plastics — Part 1: General Rules'—this series currently has no specific standard for PEEK; the national standards for PEEK materials themselves are GB/T 41873-2022 'Plastics — Polyetheretherketone (PEEK) Resin' and GB/T 46197.2-2025 'Moulding and Extrusion Materials — Part 2: Specimen Preparation and Performance Testing'. Within the industry, materials are further classified in multiple dimensions according to purity, use, modification, and color, with the mainstream domestic and international grade systems as follows.
Table 5 Overview of the Industry Grade System for Recycled PEEK
| Hierarchical Dimension | Specific grade / designation | Explanation |
|---|
| Recycled Material National Standard | GB/T 40006.1-2021 General Rules | The recycled plastic series has been released: 1/.2 PE/.3 PP/.5 ABS/.13 PPE, etc. No special category for PEEK, so PEEK follows 1 general rule. |
| PEEK Material National Standard | GB/T 41873-2022; GB/T 46197.2-2025 | 41873-2022 is the national standard for PEEK resin (implemented on 2023-05-01); 46197.2-2025 pertains to specimen preparation and performance testing (implemented on 2026-03-01) |
| By purity | Special Grade / First Grade / Second Grade | Impurities, black spots, molecular weight distribution, and batch stability classification |
| By purpose | General / Medical Implant / Food Contact / Semiconductor Cleanroom | Implant-grade must be native medical grade, prohibited from regeneration; semiconductor clean grade is extremely sensitive to metal precipitation |
| By modification | Unfilled / Glass Fiber GF / Carbon Fiber CF / Wear-resistant bearing | GF30 high rigidity, CF30 high strength, FC self-lubricating and wear-resistant |
| By color | Natural Amber / Black / Enhanced Color | Natural color grades are priced higher, and carbon black coloring is mostly used for wear-resistant/bearing grades. |
| Victrex (UK) | 450G / 90G / 150G / 450GL30 / 450CA30 / PEEK-OPTIMA | 450G standard injection molding grade; 450GL30 with 30% glass fiber; 450CA30 with 30% carbon fiber; OPTIMA is Invibio's medical implant grade |
| Solvay (Belgium) | KetaSpire KT-880, etc. | General high fluidity; also available in KT-880SL30 wear-resistant grade and AV-651 CF30 carbon fiber grade |
| Evonik (Germany) | VESTAKEEP i4 G / 4000 FC30, etc. | i4 G high-viscosity long-term implant special; FC30 self-lubricating wear-resistant |
| Zhongyan (domestically produced) | ZYPEEK 550G / 770G, etc. | Leading domestic production and sales, 550G/770G replacing PPS for semiconductor CMP and other scenarios |
4 Performance Indicators
4.1 Comparison of Native and Regenerated
Table 6 Typical Properties of Virgin PEEK (Victrex 450G Unfilled)
| Indicator | Typical value | Test Method/Condition |
|---|
| Density | Approximately 1.30 g/cm³ | ISO 1183 |
| Tensile Strength (Yield) | About 98–100 MPa | ISO 527 |
| Bending modulus | About 3.8 GPa | ISO 178 |
| Impact on simply supported beam with notch | Approximately 5.0 kJ/m² | ISO 179 |
| Melting Point Tm / Glass Transition Tg | 343℃ / 143℃ | ISO 11357-3 / 11357-2 |
| Continuous use temperature | About 250°C | 20,000 hours of air aging |
| Flame retardant rating | UL94 V-0 (1.5mm) | UL94 |
| Water absorption rate (24h) | About 0.05% | ISO 62 |
| Mfur | Approximately 30–33 g/10min | 400℃ / 2.16kg (ISO 1133) |
| Molded Melt Temperature | 360–400℃ | Injection Molding/Extrusion |
Table 7 Performance Changes of Recycled PEEK (Typical Values)
| Dimension of change | Manifestation after regeneration |
|---|
| Molecular weight | With each thermal processing cycle, the molecular weight decreases by about 10–20% (molecular chain breakage) |
| Tensile strength | After three standard mechanical recycling cycles, the tensile strength typically decreases by 8–12% |
| Crystallinity/Flowability | Liquidity slightly increases, resilience/impact decreases; unused 3D printing powder turns yellow and its flowability worsens when reused |
| Appearance Color | Color darkening (light brown → yellow → brown → black), yellowing and browning occur after multiple processing |
| Impurity sensitivity | Extremely sensitive — contaminated with black spots, calcium carbonate, or impurities will damage mechanical properties and wear resistance |
| Density | After adding carbon black/glass fiber, the density slightly increases to 1.4–1.5 g/cm³ |
Table 8 Mechanism of Reclaimed Reduction and Mixable Proportion
| Project | Content | Explanation |
|---|
| Decline Mechanism | Repeated hot processing at 360–400°C leads to molecular chain breakage, with Mw decreasing by 10–20% per cycle; during the recycling and reprocessing of glass fiber/carbon fiber, the aspect ratio decreases and the reinforcing effect diminishes. | Performance degradation is mainly due to molecular chain breakage and is irreversible |
| PIR blending ratio | PIR scrap, combined with 25–75 wt% of an appropriate filler system, can maintain acceptable mechanical properties | Industrial practice range, depending on the part requirements |
| Native refresh strategy | Often mix 30–50% virgin material with recycled material to stabilize molecular weight and fluidity | It is recommended that key components be returned in strictly limited quantities and with dedicated equipment. |
| Use border | Currently mainly downgraded for use (protective covers, brackets, non-critical wear-resistant structural parts) | Medical implants / Semiconductor clean / High-reliability aerospace prohibited recycled materials |
4.2 Classification by Use and Modification
Table 9 Performance/Processing Characteristics Classified by Application and Modification
| Classification Direction | Typical specifications | Performance/Processing Characteristics | Typical applications |
|---|
| Unfilled pure resin | 450G / G0 | Good toughness, natural amber color, top price | Precision parts, basic colors for food contact |
| Glass Fiber Reinforced GF30 | 450GL30 | High rigidity, low warping, light gray | Structural components, thick-walled components |
| Carbon fiber reinforced CF30 | 450CA30 | High strength, high rigidity, conductive and anti-static, black | High-strength structures, semiconductor conductive static components |
| wear-resistant bearing | 450FC30 / KT-880SL30 | Self-lubricating, low friction, long wear life | Bearing cage, gear, valve seat |
| Medical implant grade | PEEK-OPTIMA / i4 G | Biocompatible, must use virgin materials, recycled materials prohibited | Spinal fusion devices, joints, trauma plates |
5 Color System
The natural color of PEEK is a natural light brown/amber. The grade and price generally follow this order: natural unfilled (medical/food grade) at the top → carbon fiber reinforced → glass fiber reinforced → industrial pure material. Recycled materials, because they mostly come from machining scraps and sprue material, are scarce in natural color; most on the market are black or glass fiber reinforced. After downgrading, the price drops sharply.
Table 10 Color System of Recycled PEEK and the Relationship with Grade Prices
| Color/Grade | Quote Tendency | Grade | Characteristics |
|---|
| Natural Light Brown/Amber | Leading in quotes | General/Medical/Food-Grade Basic Colors | Unfilled natural resin, relatively scarce, rarely seen in recycled material |
| Black (BK) | Slightly lower than natural color | Wear-resistant / commonly used bearing grade | Add food-grade carbon black for coloring, weak antistatic |
| Carbon fiber reinforced black | High price | High strength and high rigidity | CF30 like 450CA30, conductive and anti-static |
| Fiberglass reinforced (light gray/off-white) | Moderate price | High rigidity | GF30 like 450GL30, the mainstream form of recycled material |
6 Market and Trend Overview
6.1 Market Size and Competitive Landscape
According to the caliber of brokers/industry chain, the global PEEK market in 2024 is about 6.1 billion RMB, with China accounting for about 1.9 billion RMB. It is expected that the global CAGR from 2024 to 2027 will be about 12%, and China's about 14%. Another consulting company, using 'PEEK resin pellets' as the caliber, gives that the global market in 2024 is about 3.87 billion USD. This caliber covers a wider scope and the figures are relatively higher, so it cannot be directly converted to the RMB-based figures, and the source should be cited when referenced.
Competitive landscape: The global total production capacity has exceeded 14,000 tons per year, with Victrex at about 7,150 tons (the global leader, with a market share of about 45%), Solvay at about 2,500 tons, and Evonik at about 1,800 tons. These three companies account for more than three-quarters of the global capacity. Domestic Zhongyan Co., Ltd. currently has about 1,000 tons, and the second phase of 5,000 tons/year is expected to be put into production in September 2026, bringing the total to about 6,000 tons, directly chasing international major manufacturers.
6.2 Price
Virgin price: China National Chemical Corporation's 2024 annual report disclosed that the unit price of PEEK fell from 321,900 yuan/ton to about 287,000 yuan/ton (domestically produced industrial grade); the market circulating industrial-grade pure material is about 300,000–500,000 yuan/ton, glass fiber reinforced about 350,000–550,000 yuan/ton, carbon fiber reinforced about 450,000–800,000 yuan/ton, and medical grade over 800,000 yuan/ton; imported Victrex 450G retail is equivalent to about 730,000–1,340,000 yuan/ton. Recycled price is only about 45,000–80,000 yuan/ton, a difference of 5–10 times. Causes: fundamentally different material sources (scrap/sprue material dilutes cost), downgrade in grade (higher fluidity, lower toughness, darker color), lack of certification (no FDA/ISO10993/ASTM F2026 implant endorsement), whereas virgin material also includes polymerization, purification, full set of certification, and R&D costs.
6.3 2026-09-11 Quotation Details (2 items, total purchasable quantity 30 tons)
Table 11 Sample Quotation for Recycled PEEK (Source: Quotation on 2026-09-11)
| Serial Number | Product Name/Specification | Price (CNY/ton) | Purchasable Quantity (tons) | Grade |
|---|
| One | PEEK Glass Fiber Reinforced | 45,000 | Twenty | Level 1 |
| Two | PEEK: G0 (unfilled pure resin) | 80,000 | Ten | Level 1 |
| — | Total Purchasable Quantity | — | Thirty | — |
Price Difference Analysis: This batch of recycled PEEK (45,000–80,000 RMB/ton) is only 1/5–1/10 the price of virgin industrial-grade PEEK (about 280,000–500,000 RMB/ton) and less than 1/10 of medical-grade PEEK (>800,000 RMB/ton). This quotation is for prime material, which is considered to be a relatively high-quality source among recycled PEEK. Its use should be limited to industrial wear-resistant/thick-walled structural parts, excluding implants, semiconductor-clean, or aerospace applications.
6.4 PEEK / PEI / PPSU Comparison (Table 12)
Table 12 Comprehensive Comparison of PEEK / PEI / PPSU
| Comparison Dimension | PEEK polyether ether ketone | PEI Polyetherimide | PPSU Polyphenylsulfone |
|---|
| Crystalline form | semi-crystalline | Amorphous | Amorphous |
| Melting point Tm | 343℃ | No melting point | No melting point |
| Glass Transition Temperature (Tg) | 143℃ | About 217°C | About 220°C |
| Continuous use temperature | About 250°C | About 170–180°C | About 180°C |
| Tensile strength | About 98–100 MPa | approximately 105 MPa | Approximately 70–74 MPa |
| Gap impact | Approximately 5.0 kJ/m² | Medium | Outstanding resilience |
| Chemical-resistant | Extremely strong (only corrosive to concentrated strong acids) | Medium | Better |
| Native Price (2026) | 300,000–800,000 yuan/ton, price at the forefront | Approximately 250,000–280,000 yuan/ton | Approximately 270,000–290,000 yuan/ton |
| Positioning | Temperature resistant, chemical resistant, implantable all-purpose king | Cost-effective amorphous material | Steam-sterilizable, ultra-tough medical-grade transparent material |
6.5 Policies and Regulations
Food contact: PEEK-specific FDA regulation is 21 CFR 177.2415; in China, it must comply with GB 4806.6 / GB 4806.7; in the EU, it is EU 10/2011. Medical implants: must pass ISO 10993 series, USP Class VI, ASTM F2026, and FDA conducts biological evaluation according to ISO 10993-1. Recycling system: EU ELV (End-of-Life Vehicles), WEEE promote PIR recycling traceability; domestic recycled PEEK is currently classified under GB/T 40006.1 General Rules. Third-party certifications include GRS/RCS, UL 2809 (ECVP recycled content verification), ISCC PLUS, etc.
6.6 Emission Reduction Data
Explanation: Currently, there is no dedicated, publicly authoritative LCA (life cycle carbon footprint) data for PEEK, and it is not appropriate to apply the emission reduction ratios of general engineering plastics or other varieties. It can be qualitatively stated that regrinding PIR scrap eliminates the polymerization and purification steps, significantly reducing energy consumption and carbon emissions compared to virgin polymerization; the specific reduction in tons and carbon factors should be referenced only after verification by authoritative LCA reports.
6.7 Southeast Asia Import Channels and Material Source Background
RCEP zero-tariff benefits: ASEAN members such as Vietnam, Thailand, Malaysia, Indonesia, and the Philippines enjoy preferential RCEP tariffs for intra-regional trade, theoretically providing a channel for the import and export of PEEK scrap/materials/products. Material source characterization: PEEK is a high-priced niche material, and there is no large-scale PEEK polymerization capacity locally in Southeast Asia. Sources mainly come from machined scrap/sprue material generated by medical, electronics, and automotive OEM factories in the region, or re-exported waste from Europe, America, and Japan. The quantities are small, batches are scattered, and purity is uneven. Data gap: There is no specific independent customs trade statistical category for PEEK (HS codes are largely classified under "other polyamides/other engineering plastics," making it impossible to separate), and the precise import volume and tariff rate for recycled PEEK in Southeast Asia are yet to be verified, so it is not appropriate to apply general recycled plastic trade data.
7 Article Writing Entry Suggestions
A series of articles on recycled PEEK can be approached from the following six themes, taking into account material selection, cost, certification, and source of material perspectives:
Table 13 Topics and Entry Points of Recycled PEEK Series Articles
| Serial Number | Series of article topics | Entry point |
|---|
| One | What is recycled PEEK? | Clarify PEEK's identity from CAS 31694-16-3 and semi-crystalline Tm 343℃, correcting the confusion with PEI/PPSU |
| Two | Why is recycled PEEK 5–10 times cheaper? | Breakdown of native 300,000–800,000 vs recycled 45,000–80,000 price difference causes: material source, downgrading, lack of certification |
| Three | Can recycled PEEK be used for medical implants? | Explain the red line for embedded grade banned recycled materials under ASTM F2026/ISO10993 |
| 4 | Why are mostly recycled PEEK colors black? | Natural color scarcity, carbon black color tuning, fiberglass/carbon fiber reinforced grade price logic |
| 5 | How much performance drops after three recyclings? | Using Mw reduces by 10–20% per cycle, stretching reduces by 8–12% after three cycles Clarifying the downgrade boundary and blending ratio |
| 6 | Can you buy Southeast Asian materials? | RCEP zero tariffs, contract factory scrap material sources, due diligence reminders without special trade data |
8 Source
Victrex Official material data sheet (450G/150G/650G): Tm 343°C, Tg 143°C, density, tensile tensile, bending modulus, notch impact, UL94, and other physical property values.
GB/T 41873-2022 "Plastics - Polyether ether ketone (PEEK) resin"; GB/T 46197.2-2025《…… Part 2: Sample preparation and performance testing (verified by the National Standard Information Public Service Platform).
GB/T 40006.1-2021 "Plastics—Recycled Plastics Part 1: General Rules" (Recycled PEEK currently governed by PEEK, no PEEK special item).
ASTM F2026 "Standard Specification for Polyether Ether Ketone (PEEK) Polymers for Surgical Implants"; ISO 10993 Series; FDA 21 CFR 177.2415。
Zhongyan Co., Ltd. Public Annual Report and Announcement: PEEK unit selling price dropped from 321,900 yuan/ton to 287,000 yuan/ton; Currently about 1,000 tons, Phase II 5,000 tons/year, expected to be put into production in September 2026.
Market Size: Brokerage/Industry Chain Perspective: Global about 6.1 billion RMB in 2024, China about 1.9 billion RMB, CAGR about 12% (report to be verified); Consulting firm 'Resin Particles' to about 3.87 billion USD in 2024 (different calibers, not mixed).
Competitive Landscape Capacity: Victrex about 7,150 tons, Solvay about 2,500 tons, Evonik about 1,800 tons (publicly reported approximate numbers, report calibers to be verified).
Recycled PEEK performance degradation (3 recycling tensile reductions of 8–12%, 10–20% reduction per cycle of Mw): Industry technical literature and third-party recycler data, typical values (report to be verified).
PIR accounts for about 74.8% of recycled PEEK: cited by Emergen Research (report to be verified).
Quotation: 2026-09-11 Quotation sample (PEEK glass fiber reinforced 45,000 RMB/ton 20 tons; PEEK: G0 80,000 RMB/ton 10 tons; Total 30 tons).
Southeast Asia channel: qualitative description; PEEK Southeast Asia has no large-scale aggregation capacity or special trade statistics; specific import volume/tariff rates are to be verified.
Note: Figures marked as "report caliber to be verified" come from second-hand online reports, industry practices, or single sources. Before formal external reference, it is recommended to verify with manufacturer data sheets, listed company announcements, and official standard texts
