做液压软管、做汽车防尘罩、做电动工具齿轮的工程师，TPEE这个料你肯定用过。杜邦Hytrel一枝独秀几十年，国产TPEE"做不出来"的印象也传了几十年。但数据不会说谎——2025年国内TPEE总产能已经突破3.8万吨，国产料在液压管路和汽车防尘罩领域的替代速度比所有人预想的都快。今天把国产TPEE三家头部给你盘清楚。
TPEE是什么 国产走到哪一步了
TPEE（热塑性聚酯弹性体）是一种由聚酯硬段和聚醚软段组成的嵌段共聚物，兼具工程塑料的高强度和橡胶的高弹性，耐油、耐疲劳、耐高低温，大量用于汽车液压管路、防尘罩、减震件、电动工具齿轮、线缆护套等。全球TPEE市场长期被杜邦（Hytrel）、东洋纺织（Pelprene）、三菱化学等外资企业主导。
国产TPEE产业化最早可以追溯到2002年，四川晨光科新塑胶有限责任公司首次在国内将TPEE产业化，商品名SUNPLAS。经过二十余年发展，国内TPEE生产企业已形成一定规模。据行业调研，截至2025年，国内TPEE主要生产企业包括新疆蓝山屯河科技股份有限公司、四川晨光科新塑胶有限责任公司、江苏科奕莱新材料、华烁科技、科恒高分子（广东）等。其中科恒高分子在国内TPEE市场占有率超过17%，是细分领域的头部企业。
从产能规模看，国产TPEE总设计产能约数万吨级，万华化学等企业也在布局TPEE聚合产线。国产TPEE目前主要集中在中低端液压管路和一般工业配件领域，高端汽车燃油管路和医疗器械级仍以进口为主。
TPEE副牌 硬段软段比例是关键
TPEE副牌是原厂聚合生产线上硬度等级或力学性能小幅偏离标准的原生树脂。TPEE的核心指标是邵氏硬度（通常Shore 30D-82D），由硬段和软段的比例决定。副牌TPEE通常是硬度在标称值附近偏差2-5个邵氏度，或者拉伸强度、回弹率略有偏差。
副牌来源仍是四大类：开停车头尾料、牌号切换过渡料、聚合工艺波动导致硬段比例小幅偏离的批次、副线尾料。对于做液压软管外层、一般防尘罩、线缆护套等对硬度要求不极端的应用，副牌TPEE完全够用。
和回料的区别：TPEE回料经过再次挤出后，嵌段结构可能发生降解，弹性恢复率和耐疲劳性能明显下降。副牌TPEE是原厂原生聚合粒子，嵌段结构完整，只是硬度略偏。买到副牌你拿到的是"硬度差几个度的原生料"，买到回料你拿到的是"弹性已退化的再造粒料"。
四川晨光科新 国产TPEE先行者
四川晨光科新塑胶有限责任公司（SUNPLAS）成立于2002年，位于四川，是国内最早实现TPEE产业化的企业。公司是热塑性聚酯弹性体（TPEE）和热塑性动态硫化橡胶（TPV）等高品质弹性体新材料的专业生产厂商，自称"国内主要的TPEE产业化基地"。公司是四川省重点技术创新项目扶持企业、国家级火炬计划项目产业化基地。
晨光科新TPEE副牌的特点是产品线成熟——做了二十多年TPEE，牌号覆盖Shore 30D到72D多个硬度等级，副牌主要来源于聚合工艺波动导致硬度小幅偏离的批次。对于做液压软管、防尘罩等对硬度要求中等的制品，晨光副牌TPEE是经过市场长期验证的选择。包装以小包装为主。
科恒高分子 广东TPEE专精企业
科恒高分子（广东）有限公司是一家专业研发、生产和销售TPEE的科技型企业，拥有17项有效专利，获评国家高新技术企业、创新型中小企业、省级专精特新企业。据公开信息，科恒高分子在国内TPEE领域市场占有率超过17%，是华南地区TPEE生产的代表性企业。
科恒TPEE副牌的特点是华南地区交货快——地处广东，物流到珠三角各汽车配件厂和玩具厂都在半天车程内。其TPEE产品面向汽车配件、电动工具、线缆等领域。副牌主要来源于工艺波动导致拉伸强度或回弹率小幅偏离的批次，适合做对弹性要求不极端的一般工业配件。
新疆蓝山屯河 西北TPEE新势力
新疆蓝山屯河科技股份有限公司是新疆地区大型新材料企业，业务涵盖聚酯、新材料等多个板块。蓝山屯河在TPEE领域有布局，是国内TPEE主要生产企业之一。依托新疆煤炭和化工原料成本优势，蓝山屯河TPEE在成本控制上有一定竞争力。
蓝山屯河TPEE副牌的特点是性价比突出——新疆地区原料成本较低，副牌价格在国产TPEE中属于偏低梯队。对于对成本敏感、产品附加值一般的线缆护套和一般工业配件客户，蓝山屯河副牌值得关注。产品以大包装为主，适合大批量采购。
TPEE副牌进厂 硬度回弹双测
第一，测硬度和回弹率。TPEE副牌最容易出偏差的就是邵氏硬度和回弹率。进货前要求供应商提供同批次硬度和回弹率数据，到货后用邵氏硬度计和回弹仪复测。硬度差5个度，液压软管的承压和弯曲性能就会受影响。
第二，检查嵌段结构完整性。TPEE的弹性来自硬段-软段嵌段结构。副牌TPEE切样观察断面，如果断面细腻均匀、没有分层，说明嵌段结构完整；如果断面粗糙、有明显相分离，可能是回料或降解料。
第三，按硬度等级选。TPEE不同硬度对应不同应用——30D-40D做软管和护套，40D-55D做防尘罩和减震件，55D以上做齿轮和结构件。副牌硬度偏差要和你的应用匹配，别拿偏软的副牌去做齿轮件。
科隆仓库现货 国产TPEE副牌直供
科隆仓库现货TPEE副牌，主推四川晨光科新（SUNPLAS）、科恒高分子（广东）、新疆蓝山屯河三家国产TPEE树脂，主要牌号覆盖Shore 30D-72D多个硬度等级，大包装和小包装均有备货。仓库现货通常在5000吨左右，其中小包副牌备货800-1000吨、箱装副牌备货300-500吨、大包料/吨包料备货3500-3900吨。供应保障走先测后签通道——先送检硬度和回弹率合格再签合同。
Engineers who make hydraulic hoses, automotive dust covers, or power tool gears—you've definitely used TPEE before. DuPont Hytrel has stood out for decades, and the impression that domestic TPEE "can't be made" has also been circulated for decades. But the data doesn't lie—by 2025, China's total TPEE capacity will exceed 38,000 tons, and domestic materials are replacing hydraulic pipelines and automotive dust covers faster than anyone expected. Today, I'll give you a breakdown of the three leading domestic TPEE brands. What is
TPEE? How far has domestic development progressed
TPEE (thermoplastic polyester elastomer) is a block copolymer composed of hard polyester and polyether soft segments. It combines the high strength of engineering plastics with the high elasticity of rubber, making it oil-resistant, fatigue-resistant, and resistant to extreme temperatures. It is widely used in automotive hydraulic pipelines, dust covers, shock absorbers, power tool gears, cable sheaths, and more. The global TPEE market has long been dominated by foreign companies such as DuPont, Pelprene, and Mitsubishi Chemical.
The industrialization of domestic TPEE dates back to 2002, when Sichuan Chenguang Kexin Plastics Co., Ltd. was the first to industrialize TPEE in China, under the brand name SUNPLAS. After more than twenty years of development, domestic TPEE manufacturers have reached a certain scale. According to industry research, by 2025, the main domestic TPEE producers include Xinjiang Lanshan Tunhe Technology Co., Ltd., Sichuan Chenguang Kexin Plastics Co., Ltd., Jiangsu Keyilai New Materials, Huashuo Technology, and Keheng Polymer (Guangdong), among others. Among them, Keheng Polymer holds a market share of over 17% in the domestic TPEE market, making it a leading company in its niche sector.
In terms of production capacity, the total designed capacity of domestic TPEE is about tens of thousands of tons, and companies like Wanhua Chemical are also laying out TPEE polymerization production lines. Currently, domestic TPEE is mainly concentrated in mid- to low-end hydraulic pipelines and general industrial components, while high-end automotive fuel pipelines and medical device grades are still primarily imported.
TPEE Secondary Brand The ratio of hard to soft segments is key
TPEE Secondary brands are original resins whose hardness grades or mechanical properties slightly deviate from standards on the original polymerization production line. The core indicator of TPEE is Shore hardness (usually Shore 30D-82D), determined by the ratio of hard and soft segments. Secondary brand TPEE usually has hardness deviating by 2-5 degrees from the nominal value, or has slight deviations in tensile strength and resilience.
Secondary brand sources still fall into four main categories: start-and-stop starting and tail materials, grade switching transition materials, batches with slight deviations in hard segment ratios due to polymerization process fluctuations, and auxiliary wire scraps. For applications where hardness requirements are not extreme, such as hydraulic hose outer layers, general dust covers, and cable sheaths, secondary brand TPEE is completely sufficient. Difference between
and restocking: After TPEE re-extrud, the block structure may degrade, and elastic recovery rate and fatigue resistance significantly decrease. Sub-brand TPEE is original original polymerized particles, with intact block structures but slightly less hard. When you buy sub-brand, you get "virgin material with hardness several degrees different," while when you buy re-material, you get "re-pelletized material with degraded elasticity."
Sichuan Chenguang Kexin Pioneer of Domestic TPEE
Sichuan Chenguang Kexin Plastics Co., Ltd. (SUNPLAS) was established in 2002 and is located in Sichuan. It is the earliest domestic enterprise to achieve TPEE industrialization. The company is a professional manufacturer of high-quality new elastomer materials such as thermoplastic polyester elastomers (TPEE) and thermoplastic dynamic vulcanized rubber (TPV), and calls itself the "main domestic TPEE industrialization base." The company is a key technology innovation project support enterprise in Sichuan Province and a national-level Torch Program industrialization base. The characteristic of
Chenguang Kexin's TPEE sub-brand is its mature product line—after more than twenty years of TPEE, the grades cover multiple hardness grades from Shore 30D to 72D. The sub-brand mainly comes from batches with slight hardness deviations caused by polymerization process fluctuations. For products requiring moderate hardness such as hydraulic hoses and dust covers, Chenguang's sub-brand TPEE is a long-proven choice in the market. Packaging is mainly in small packages.
Keheng Polymer Guangdong TPEE Specialized Enterprise
Keheng Polymer (Guangdong) Co., Ltd. is a technology-based enterprise specializing in the research, development, production, and sales of TPEE, holding 17 valid patents and recognized as a National High-Tech Enterprise, Innovative SME, and Provincial Specialized and New Enterprise. According to public information, Keheng Polymer holds a market share of over 17% in the domestic TPEE field, making it a representative company in TPEE production in South China. The main feature of
Keheng TPEE sub-brand is fast delivery in South China—located in Guangdong, logistics to various automotive parts factories and toy factories in the Pearl River Delta are within half a day's drive. Its TPEE products are targeted at auto parts, power tools, cables, and other fields. The sub-brand mainly comes from batches where process fluctuations cause slight deviations in tensile strength or rebound rate, making it suitable for general industrial parts with moderate elasticity requirements.
Xinjiang Lanshan Tunhe Northwest TPEE New Force
Xinjiang Lanshan Tunhe Technology Co., Ltd. is a large new materials enterprise in Xinjiang, with business covering polyester, new materials, and other sectors. Lanshan Tunhe has a presence in the TPEE field and is one of the main domestic TPEE producers. Relying on Xinjiang's coal and chemical raw material cost advantages, Lanshan Tunhe TPEE has a certain degree of cost control.
Lanshan Tunhe TPEE sub-brand is characterized by outstanding cost-performance — raw material costs in Xinjiang are relatively low, and sub-brand prices are relatively low among domestic TPEE. For cable sheaths and general industrial parts customers sensitive to cost sensitivity and average product added value, Lanshan Tunhe sub-brand is worth attention. Products mainly come in large packages, suitable for bulk procurement.
TPEE secondary brand arrives at the factory: Hardness and rebound double testing
First, test hardness and rebound rate. The most common deviations in TPEE secondary brands are Shore hardness and rebound rate. Before purchase, suppliers are required to provide hardness and rebound rate data for the same batch, and after arrival, re-test with Shore hardness testers and rebound testers. A hardness difference of 5 degrees will affect the pressure resistance and bending performance of the hydraulic hose.
Second, check the integrity of the block structure. TPEE elasticity comes from the hard to soft section block structure. When sub-brand TPEE samples are taken and the cross-section is fine, uniform, and without delamination, the block structure is intact; If the cross-section is rough and shows obvious phase separation, it may be recycled or degraded material.
Third, select by hardness grade. Different TPEE hardness levels correspond to different applications—30D-40D for tubing and sheaths, 40D-55D for dust covers and shock absorbers, and above 55D for gears and structural parts. The hardness deviation of the secondary brand should match your application; don't use softer secondary brands for gear parts.
Cologne Warehouse In Stock Domestic TPEE secondary brands are supplied directly from
Cologne Warehouse Stock TPEE secondary brands, mainly promoting three domestic TPEE resins from Sichuan Chenguang Kexin (SUNPLAS), Keheng Polymer (Guangdong), and Xinjiang Lanshan Tunhe, mainly covering multiple hardness grades from Shore 30D to 72D, with both large and small packages available. Warehouse stock is usually around 5,000 tons, with 800-1,000 tons for small sub-labels, 300-500 tons for containerized sub-labels, and 3,500-3,900 tons for large packages/tons. Supply assurance follows the first-test, then sign-up channel—first, send for hardness and rebound rate before signing the contract
