同样叫再生PPS，黑色料一万一千五一吨，大红色料四万三一吨，摆在料袋上都印着再生PPS四个大字，买回去的东西完全不是一回事。
差在哪？等级。
做汽车连接器的、做电子接插件的、做泵阀衬里的，嘴上都说自己用的是再生PPS，有人拿特级大红顶新料做高端定制件，有人拿普通黑料压成看不见的非外观结构件。
更坑的是，这行连国标都还没出专项标准。GB/T 40006系列发了PE、PP、ABS、PS、PBT、PVC、PPE，偏偏漏了PPS这一册。再生PPS目前只能套着GB/T 40006.1通则走，没有自己的暗号。
没有国标兜底，等级全靠行业自己口口相传。分不清等级就下单，跟闭着眼睛扫货没区别。这篇把再生PPS的分级江湖拆开揉碎，看完至少不会当韭菜。
先说清楚PPS是什么。聚苯硫醚，半结晶性特种工程塑料，熔点约280℃，不加阻燃剂就能过UL94 V-0，200℃以下几乎没溶剂能溶解它，天生就是干硬核活的。
正因为它硬核，再生料才显得金贵——原生PPS用对二氯苯加硫化钠在NMP溶剂里缩聚，能耗高、链条长，回收一吨比新做一吨省的不是一星半点。
但再生PPS的分级，目前没有自己的国标分册。GB/T 40006系列里，.2是PE、.3是PP、.5是ABS、.6是PS、.10是PBT、.11是PVC、.13是PPE，翻遍了就是没有PPS那一册。
所以行业只能按四个维度自己玩：玻纤含量、加工用途、改性方向、纯度品级。
这四个维度，说白了就是四把尺子——料里含多少玻纤、能用什么工艺做、往哪个方向改性、干净到什么程度。四把尺子量出来的等级，才是报价单上一万一和四万三的差距来源。
玻纤含量是把硬尺子
报价单上打头的，不是颜色，是GF两个字母后面跟的数字。
GF20、GF30、GF40、GF45、GF60，数字越大，玻纤占比越高，材料越刚、越硬、越能扛温，但也越脆、流动性越差。
这堆牌号里，GF40是绕不开的主力。为什么？因为40%玻纤增强正好卡在强度够、流动性也够的平衡点上，做连接器、做结构件都吃得开。报价单上1140系列清一色围着GF40转：1140-9报两万五、1140-73报一万九、1140-72报一万九千五、1140黑色两万，一吨在一万九到两万五之间晃。
这里有个行业心照不宣的命名规律：1140就是40%玻纤增强——宝理DURAFIDE 1140A6是原生GF40的标杆，证实了这个写法；按同样的规律推，1130大概对应GF30那一档，报价单上1130-68黑色一万九；1150大概对应GF50那一档，1150-4F10棕色耐磨级三万。
你品你细品，牌号里前两位11是PPS基体，后两位是玻纤含量。看到1140就知道这是GF40，看到1130就知道玻纤少一档、更软更好流动，看到1150就知道玻纤更多、更刚但更难打。
玻纤含量就是再生PPS的入门硬尺子——不知道自己产品要多少玻纤，报价单看了也是白看。薄壁连接器要流动好，GF30就够；高刚性结构件要挺，GF40起步；做特别大的受力件，才上GF50甚至GF60。
注塑挤出纤维涂料，各走各的道
玻纤含量定了刚不刚，加工用途定了这料能不能进你的机台。
再生PPS按用途分四条赛道：注塑级、挤出级、纤维级、涂料级。四条道上的料，熔指、黏度、杂质容忍度完全是两路人。
注塑级是主力，熔指适中、流动性好，做汽车高压连接器、电子接插件、继电器骨架、传感器支架，0.15到0.3毫米的薄壁件都靠它充填。挤出级熔体要拉得长、强度要连续，做化工管道、管件、热交换器这种需要连续挤出成型的件。纤维级要能拉成丝，做高温除尘过滤材料，这是PPS纤维的主要去向。涂料级要细、要匀、能成膜，做金属表面涂层、防腐衬里。
这四条道，新和成是目前国内为数不多把注塑、挤出、纤维、涂料四个级别做全的企业，年产能两万多吨。换句话说，原生料里你想找全四级别，选择不多；再生料里想找同时懂四条道的供应商，更少。
用途选错，料再纯也是白搭——拿挤出级去打薄壁连接器，熔指太低充不满模；拿纤维级去做注塑结构件，那更是驴唇不对马嘴。
改性方向，才是身价分水岭
玻纤增强只是起点。真正把一吨料的价格拉开的，是改性方向。
报价单上这一串你得看懂：矿增KW31两万五一吨，这是矿物填充级，加了矿物粉把收缩率压得更低、尺寸更稳，做要求高精度的齿轮、保持架；导电钢料两万二，这是碳纤导电级，加了碳纤或碳黑，表面电阻降下来，做需要抗静电、导电的电子件；1150-4F10棕色耐磨级三万，这里头掺了PTFE和石墨，自润滑、耐磨，做泵阀衬里、密封件；817高韧性两万三，是往增韧方向走的，把再生料天生偏脆的毛病补一补。
同样是GF40再生PPS，做普通增强卖两万上下，掺了PTFE做耐磨级能摸到三万，加了碳纤做导电级两万二，加矿物粉做矿增两万五。改性方向一换，一吨差几千块，干的活也完全不一样。
东莞有家做汽车高压连接器端子座的厂，之前从国内小作坊拼料，号称都是GF40，结果每批玻纤含量从32%飘到45%，端子座注塑出来尺寸忽大忽小，和金属端子的压合力批间差18%，客户装机后接触电阻超标，退货率7%。后来宁波市科隆新材料有限公司从越南、泰国、马来西亚多国直采PIR水口料，每批进门先过燃烧法测玻纤含量，GF40批次稳定压在39%到41%之间，尺寸批间差收窄到2%以内，退货率压到0.6%。
说白了，多国直采不是营销词——料源固定了，每车料的玻纤含量才不会像开盲盒。批次可控、品级稳定、GF含量精准，这三个词落到量产线上，就是端子座不用反复调机。
一级和特级，差的不是一个字
报价单上除了GF含量和改性方向，还有一个词特别容易被忽略：等级。
同一批1140，有的标一级，有的标特级。特级G0黑色四万，特级大红色四万三，特级本白三万五；一级普通黑色一万一千五，一级WR系列一万七到两万二。
差一个级，一吨差出两万多。
这个一级、特级不是PPS独有的规矩，是再生塑料行业通用的纯度分级惯例——一级料灰分一般压在1%以内，二级3%，三级10%。灰分是什么？是烧完剩下的无机杂质，包括残留填料、泥沙、异种塑料残渣。灰分越低，料越纯，能做的活越高端。
特级G0黑为什么能卖四万？不是因为它黑得更亮，是因为它杂质极少、批次极稳，黑色遮盖之外还要求性能贴原生料，能顶新料做高端件。而一万一千五的一级普通黑，就是靠黑色把杂质盖住，做非外观、低要求结构件。
你拿一级普通黑去做外观件，做出来表面全是小黑点；拿特级料去做低端结构件，又是把好钢用在了刀把上。
所以看报价单，别只看GF40四个字，先问清楚是一级还是特级——一个字之差，背后是灰分和杂质的天壤之别。
几个牌号方向，一句话讲清
WR系列：国内改性厂的自有牌号，按颜色和品级细分，从一万七的WR-4-002到四万三的WR-4-09大红，同一个WR前缀，品级跨度极大，下单前必须把完整型号报全。
Ryton R-4：索尔维的原生GF40标杆，进口改性料三万八左右一吨，再生料对标它做性能参照。
Fortron 1140L4：塞拉尼斯的原生牌号，流动性和耐热兼顾，常用于高端电子连接器。
DURAFIDE 1140A6：宝理的GF40证实牌号，1140等于GF40这个行业常识就是从它这儿来的。
Torelina：东丽的PPS牌号线，化学回收路线走在前面，再生后强度接近原生。
新和成NHU系列：国产原生主力，国内市占靠前，注塑挤出纤维涂料四级全覆盖，是再生料对标国产原生的主要参照。
写在最后：七级选料口诀
1. 问玻纤：GF20、GF30、GF40、GF45、GF60，薄壁件往低选，高刚性件往高选；
2. 问牌号：1140是GF40、1130约GF30、1150约GF50，后两位对玻纤；
3. 问用途：注塑、挤出、纤维、涂料，熔指和工艺得对上；
4. 问改性：增强、矿增、导电、耐磨、增韧，方向决定身价；
5. 问品级：一级灰分约1%以内，特级更高纯，报价差两万；
6. 问颜色：黑色盖杂质，浅色要本色料，别拿黑料硬改；
7. 问批次：敢不敢给每批玻纤含量和灰分检测报告，不敢给的就小心。
写在最后：再生PPS的等级，本质是玻纤含量、改性方向和纯净度的标价。国标还没出专项分册，行业自己玩出来的这套江湖规矩，你不学会，就只能替别人的学费买单。宁波市科隆新材料有限公司做再生PPS分级和改性多年，料源从东南亚多国直采，批次可控、品级稳定、GF含量精准，说白了就是帮你在没有国标的灰色地带里，把每一车料的底细摸清楚。
Both are called recycled PPS, black material costs 11,500 per ton, bright red material 43,000 per ton, and the four big words 'recycled PPS' are printed on the material bags. The products you buy are completely different.
What's the difference? Grade.
Those making automotive connectors, electronic connectors, pump and valve liners, all claim they use recycled PPS. Some use premium bright red new material for high-end custom parts, while others press ordinary black material into invisible non-exterior structural parts.
What's even more frustrating is that this industry hasn't even issued a dedicated standard for national standards yet. The GB/T 40006 series includes PE, PP, ABS, PS, PBT, PVC, and PPE, but unfortunately, the PPS volume is omitted. Recycled PPS currently only operates under GB/T 40006.1 general rules, without its own secret code.
No national standard as a backup, grades rely entirely on industry word of mouth. Ordering without distinguishing grades is no different from blindly buying goods. This article breaks down the grading world of recycled PPS, at least after reading it you won't be a rip-off.
First, clarify what PPS is. Polyphenylene sulfide, a semi-crystalline special engineering plastic with a melting point of about 280°C, can pass UL94 V-0 without flame retardants, and below 200°C almost no solvent can dissolve it. It's naturally hard-working.
Precisely because it's so hardcore, recycled materials are so precious—virgin PPS is polycondensed in NMP solvent with p-dichlorobenzene and sodium sulfide, which has high energy consumption and a long chain. Recycling one ton saves a fraction of it than making a ton of new material.
But there is currently no national standard volume for grading recycled PPS. In the GB/T 40006 series, .2 is PE, .3 is PP, .5 is ABS, .6 is PS, .10 is PBT, .11 is PVC, .13 is PPE. After searching through it, there's no PPS volume.
So the industry can only play by four dimensions: fiberglass content, processing purpose, modification direction, and purity grade.
These four dimensions basically mean four rulers—how much fiberglass is in the material, what process can be used, which direction is modified, and how clean it is. The grade measured by these four rulers is the source of the difference between 11,000 and 43,000 on the quotation.
Fiberglass content is the hard ruler
listed on the quotation, not the color, but the number following the letters GF.
GF20. GF30, GF40, GF45, GF60—the higher the number, the higher the proportion of fiberglass. The harder, harder, and better the temperature resistance, but also the brittle and less fluid. Among all the
grades, GF40 is the unavoidable main force. Why? Because 40% fiberglass reinforced strikes a balance between strength and flowability, making it suitable for connectors and structural parts. The quotation lists show that the 1140 series is uniformly centered around GF40: 1140-9 at 25,000, 1140-73 at 19,500, 1140-72 at 19,500, 1140 black at 20,000, and 1140 black at 19,000 to 25,000 per ton.
There's an unspoken industry naming convention: 1140 is 40% fiberglass-reinforced—Poly DURAFIDE 1140A6 is the benchmark for native GF40, confirming this logic; By the same logic, 1130 roughly corresponds to the GF30 tier, and the price list lists 1130-68 black for 19,000; 1150 roughly corresponds to the GF50 grade; 1150-4F10 brown wear-resistant grade is 30,000.
Examine carefully, the first two digits of the grade, 11, are PPS substrates, and the last two digits represent glass fiber content. Seeing 1140 means it's GF40; seeing 1130 means fiberglass is one level less, softer and more flowable; 1150 means fiberglass is more stiff but harder to navigate.
Fiberglass content is the entry-level hard measure for recycled PPS—if you don't know how much fiberglass you want, reading quotes is pointless. For thin-walled connectors to flow well, GF30 is enough; For high-rigidity structural parts, GF40 is the starting point; For especially large load-bearing parts, only use GF50 or GF60.
Injection-molded extrusion fiber coatings, each follows its own path
Glass fiber content is determined by whether it's good or not, and the processing purpose determines whether the material can fit your machine.
Recycled PPS is divided into four tracks by application: injection molding, extrusion, fiber, and coating grade. The materials on these four stages have melt fingers, viscosity, and impurity tolerance are completely different approaches.
Injection molding grade is the main force, with moderate melting points and good flowability. Used for automotive high-voltage connectors, electronic connectors, relay frames, sensor brackets, and thin-walled parts ranging from 0.15 to 0.3 millimeters, all rely on it. Extruded grade melt must be stretched long and have continuous strength, used for chemical pipelines, fittings, heat exchangers, and other parts that require continuous extrusion molding. Fiber-grade fibers must be able to be stretched into filaments and used for high-temperature dust removal and filtration materials—this is the main destination for PPS fibers. Coating grades must be fine, uniform, and able to form films, used for metal surface coatings and anti-corrosion linings.
These four paths: Xinhecheng is currently one of the few domestic companies that covers all four grades: injection molding, extrusion, fiber, and coating, with an annual capacity of over 20,000 tons. In other words, for virgin materials, there aren't many options for all four grades; For recycled materials, even fewer suppliers understand all four stages.
If you choose the wrong purpose, no matter how pure the material is, it's useless—using the extrusion grade to make thin-walled connectors results in a low melt index that won't fill the mold; Using fiber-grade materials for injection-molded structural parts is even more mismatched.
Modification is the dividing line for value .
Fiberglass reinforcement is just the starting point. What really pulls apart the price per ton is the modification direction.
You need to understand this string on the quotation: Mineral Increase KW31 25,000 per ton, this is the mineral-filled grade, with mineral powder added to lower shrinkage and more stable dimensions, used for high-precision gears and cages; Conductive steel at 22,000 yuan, this is the conductive carbon fiber grade, with added carbon fiber or carbon black, lowering surface resistance to make electronic components that require anti-static and conductive properties; 1150-4F10 brown wear-resistant grade is 30,000, mixed with PTFE and graphite, self-lubricating and wear-resistant, used for pump and valve linings and seals; 817 High Toughness is 23,000, aiming for toughness, addressing the natural brittleness of recycled materials.
Also GF40 recycled PPS, ordinary reinforcement sells for around 20,000, PTFE for wear-resistant grade for 30,000, carbon fiber for conductive grade for 22,000, mineral powder for mineral powder adds 25,000. Changing the modification direction means a difference of several thousand per ton, and the work is completely different.
There is a factory in Dongguan that makes automotive high-voltage connector terminal blocks. Previously, they sourced materials from small domestic workshops, claiming they were all GF40. As a result, the glass fiber content per batch fluctuated from 32% to 45%. The terminal block size fluctuated in size by injection, and the bonding force between batches and metal terminals was 18%. After installation, the customer exceeded contact resistance standards, resulting in a 7% return rate. Later, Ningbo Kelon New Materials Co., Ltd. directly sourced PIR sprue material from Vietnam, Thailand, and Malaysia. Each batch was first tested by combustion for glass fiber content. The GF40 batch was stably compressed between 39% and 41%, the size gap narrowed to within 2%, and the return rate dropped to 0.6%.
To put it bluntly, direct procurement from multiple countries is not a marketing slogan—once the source is fixed, the glass fiber content per batch won't feel like opening a blind box. Batch controllability, stable grade, and precise GF content—these three words on the mass production line mean the terminal block doesn't require repeated machine adjustments.
First-grade and special-grade, the difference is not just one word .
Besides GF content and modification direction, there's another word on the quotation sheet that is especially easily overlooked: grade.
Same batch 1140, some are labeled as first-grade, some as special-grade. Special grade G0 black is 40,000, premium bright red is 43,000, premium grade genuine white is 35,000; Grade 1 ordinary black is 11,500, grade 1 WR series is 17,000 to 22,000.
One grade difference, one ton is over 20,000 off.
These first-grade and special grades are not exclusive to PPS; they are the common purity grading conventions in the recycled plastics industry—first-grade material ash is generally kept below 1%, second-grade 3%, and third-grade 10%. What is ash? It refers to inorganic impurities left after burning, including residual filler, silt, and distinct plastic residues. The lower the ash, the purer the material, and the more advanced the work it can do
Why can premium G0 black sell for 40,000? Not because it's brighter black, but because it has very few impurities and stable batch quality. Besides black coverage, it also requires performance to be made from virgin materials, making it suitable for high-end parts. But the 11,500-yuan grade first-grade ordinary black relies on black to cover impurities, making non-appearance, low-demand structural parts.
You use first-grade ordinary black for exterior parts, and the surface is full of small black spots; You use premium material for low-end structural parts, and you use good steel for the knife handle.
So when looking at the quotation, don't just look at the four words GF40—first clarify whether it's grade 1 or special grade—a one-word difference is a huge difference in ash content and impurities.
Several grade directions, a one-sentence summary
WR series: Domestic modification factories' own grades, subdivided by color and grade, from 17,000 WR-4-002 to 43,000 WR-4-09 bright red, all with the same WR prefix, with a wide range of grades. You must provide the full model before ordering.
Ryton R-4: Solvay's original GF40 benchmark, imported modified material costs about 38,000 per ton, with recycled material benchmarked against it for performance reference.
Fortron 1140L4: Celanese original grade, balancing fluidity and heat resistance, commonly used in high-end electronic connectors.
DURAFIDE 1140A6: Baoli's GF40 certified grade, 1140 equals GF40 This industry common sense comes from it.
Torelina: Toray's PPS grade line, with a chemical recycling route leading the way, and the strength after recycling is close to virgin .
New Hecheng NHU series: The main domestic virgin product, with a leading market share in China, full coverage of injection molded extruded fiber coatings at level 4, serving as the main reference for benchmarking recycled materials against domestic virgin products.
Final note: Level 7 material selection tips
1. Ask about fiberglass: GF20, GF30, GF40, GF45, GF60. For thin-walled parts, choose from low grade; for high rigidity, choose high.
2. Grade inquiry: 1140 is GF40, 1130 is about GF30, 1150 is about GF50, the last two digits are for glass fiber;
3. Ask about uses: injection molding, extrusion, fiber, coating; melt fingers and processes must match;
4. Ask about modification: reinforcement, mineral enhancement, conductivity, wear resistance, toughness; direction determines value;
5. Ask about grade: First-grade ash content is about 1% or less, premium grade is purer, price difference is 20,000;
6. Ask about color: black covers impurities, light colors require the original pigment, don't forcibly alter black materials;
7. Ask about batch: Dare to provide a glass fiber content and ash content test report for each batch? If you don't dare to provide it, be cautious.
Final note: The grade of recycled PPS essentially refers to the price of glass fiber content, modification direction, and purity. The national standard hasn't released a special volume yet; this is a set of industry rules made up by itself. If you don't learn it, you'll have to pay for others' tuition. Ningbo Kelong New Materials Co., Ltd. has been grading and modifying recycled PPS for many years, sourcing directly from multiple Southeast Asian countries. Batch control, stable grade, and precise GF content are essential. In short, it helps you thoroughly understand the details of every vehicle in the gray areas without national standards
