嘴上说“再生PC和再生ABS随便掺掺就行，都是塑料”，身体却很诚实——上个月壳体一批脆裂、一批脱皮、一批表面发花，产线停了三天，老板在车间直跺脚。问题出在哪？出在他以为PC和ABS凑在一起就是合金，却不知道这俩料骨子里性格不合，没人在中间牵线，混得再久也是两股劲。今天就把再生PC/ABS合金这回事说透：两种再生料到底怎么配，相容剂该怎么加，才能既省钱又稳得住壳体的质量。
先花两分钟认识下主角。宁波市科隆新材料有限公司是一家工贸一体的塑料原料供应企业，长期做再生塑料原料，品类覆盖PP、PE、ABS、PC、PET、PVC、HIPS、PA、PC/ABS等多个方向。今天的主角是再生PC/ABS合金。先把这两个字母拆开：PC是聚碳酸酯，硬、耐热、抗冲击，但贵、流动性差、做薄件大件费劲；ABS是丙烯腈-丁二烯-苯乙烯，流动性好、表面光泽好、易喷涂印刷、便宜，但耐热偏低、低温偏脆。把这俩按比例共混成合金，PC出骨架和耐热，ABS出流动和光泽，取长补短，就成了笔记本外壳、电器壳体、汽车内饰用量很大的那种料。它的再生来源，是废旧电器外壳、电子外壳回收，把PC和ABS重新分选、造粒，再配相容剂和比例重新做合金。PC再生按GB/T 40006.7、ABS再生按GB/T 40006.5分别有国家标准管着，选材时别忽略这两份依据。
PC和ABS不是搅在一起就叫合金，中间得有人牵线
很多人对PC/ABS合金有个误会：不就是PC加点ABS吗？往搅拌机里一倒，搅一搅不就完了？说真的，这正是再生PC/ABS容易翻车的地方。PC和ABS虽然能共混，但它俩的相容性是有限的——PC是连续相，ABS是分散相，两者界面如果结合不牢，做出来的件就像两块没粘牢的夹板，受点外力就从界面裂开，冲击强度上不去，表面还容易发花、脱皮。
所以真正的PC/ABS合金，配方里都藏着一个关键角色：相容剂。它一头亲PC、一头亲ABS，像胶水一样把两相的界面粘牢，把分散相的颗粒磨细，让合金从“两块夹板”变成“你中有我”的均匀体系。常见的相容剂是马来酸酐接枝类的东西，比如ABS接枝马来酸酐、SEBS接枝马来酸酐，或者苯乙烯-丙烯腈-马来酸酐三元共聚物。行业资料里，按合适比例加这类相容剂，PC/ABS的冲击强度能明显提升，相畴尺寸压到很小，界面粘得更紧。再生料因为两相都经历过加工、性能有衰减，对相容剂的依赖比新料还重——这就是为什么“随便掺掺”的再生PC/ABS，一上机就出问题。
再用个比喻把这事说透。PC和ABS就像两个性格不合的搭档：PC沉稳、硬朗、耐热，但动作慢、不好沟通；ABS活络、好说话、做事麻利，但底子软、扛不住热。直接把他俩塞进一间办公室，各干各的，遇到压力就散伙。相容剂就是那个中间协调人——左边懂PC，右边懂ABS，把俩人的劲往一处拧。拧好了，这块料既有PC的骨架，又有ABS的活泛，做壳体正好；拧不好，就是一滩没粘牢的浆糊，摔一下就分家。
图1 再生PC/ABS电器壳体生产线
配比和相容剂，才是再生合金的真配方
要把再生PC/ABS听懂，得抓住两个变量：配比和相容剂。配比决定性格，相容剂决定成不成合金。
先说配比。PC多一点，合金就更硬、更耐热、更抗冲击，但流动性变差、价格更高；ABS多一点，流动性好、好成型、便宜，但耐热和抗冲击往下走。行业里常见的是PC占大头、ABS占小头的配比，在这种比例下，合金的缺口冲击和热变形温度都比纯ABS高出一截，同时又比纯PC好成型。再生料做合金，也是在这个框架里调：要耐热就多补PC，要好成型就多补ABS。比例不是拍脑袋定的，是跟着你的件厚薄、耐热要求、表面要求一点点试出来的。这里面还有个门道：PC吸湿，再生PC尤其要注意干燥，否则做出来的壳体强度和表面都受影响；ABS的橡胶相经过几轮加工也会老化，冲击会打折扣。所以做再生合金时，配方里往往还要补一点增韧剂，把ABS这边掉下去的韧性补回来。这些细节，新料原厂替你调好了，再生料就得靠改性厂重新做一遍功课。
再说相容剂。再生PC和再生ABS都已经走过一轮加工，两相界面本来就比新料更弱，不加相容剂或者加得不够，做出来的件脆、表面差。加多少、加哪一种，直接决定这批再生合金是“能量产的料”还是“只能打低价杂件的料”。正规做法是在双螺杆挤出时，把回收的PC、ABS按比例配好，再加相容剂、增韧剂、必要时加扩链剂和抗氧剂，反应挤出重新造粒。这一整套做下来，再生PC/ABS才真正“合金化”，而不是简单的两堆料混装。
回收这条线的工序也值得说一句：废旧电器外壳先破碎，再靠材质分选把PC、ABS、其他塑料分开，清洗去掉油污和标签；然后按配比把再生PC和再生ABS配好，加相容剂、增韧剂、抗氧剂，必要时加扩链剂，双螺杆反应挤出造粒。因为PC吸潮，造粒和上机前都要充分干燥。整条线的功夫，一半在分选——PC和ABS分没分干净，另一半在配方——相容剂和比例调没调对。这也是为什么同样叫“再生PC/ABS”，不同厂的货差价不小：差的就是分选和配方这两道功夫。
宁波市科隆新材料有限公司对接再生PC/ABS客户，习惯先摸清三件事：件多薄、耐热要求多少、表面要不要喷涂或电镀。这几样直接决定PC和ABS怎么配比、相容剂怎么选、再生料能掺多少。下面这张表，把常见再生PC/ABS等级按用途理清，数据依据GB/T 40006.5、GB/T 40006.7及行业公开资料整理。
| 等级名称 | 主要来源/工艺 | 关键指标 | 典型用途 |
|---|
| 再生PC/ABS通用级 | 电器壳体回收造粒 | 配比均衡，冲击与流动兼顾 | 普通电器外壳、设备外壳 |
| 再生PC/ABS高抗冲级 | 回收＋相容剂/增韧改性 | 相容剂增容，冲击提升 | 汽车内饰、耐冲击外壳 |
| 再生PC/ABS阻燃级 | 阻燃电器件回收 | 阻燃达标，绝缘合格 | 电子电器壳体 |
| 再生PC/ABS高流动级 | 回收改性提流动性 | 流动性好，易充模 | 薄壁大件、复杂壳体 |
| 再生PC/ABS掺混级 | 回收料掺新料约15%—25% | 配比稳定，成本较低 | 外观一般的结构件 |
| 再生PC/ABS耐热级 | 回收改性提热变形温度 | HDT较高 | 靠近热源的电器件 |
表注：以上依据GB/T 40006.5（ABS）、GB/T 40006.7（PC）再生塑料国家标准及行业公开资料整理；PC/ABS合金靠配比与相容剂实现性能平衡，电镀等高表面要求场景对再生料掺比限制更严。更多等级与物性参数以厂家官方TDS为准，壳体类大件选型前建议先打样验证外观与跌落。
既省又稳的前提，是配方别靠碰运气
再生PC/ABS的降本账，算对了是真香，算错了是真坑。PC和ABS新料都不便宜，电器壳体又是大件、用量大，用对再生合金，料价差很明显。但这个料的坑，恰恰藏在“两种料怎么配”里。
配比没配好——PC太少，件一摔就裂；ABS太多，靠近热源就变形。相容剂没加够——两相界面松，冲击上不去，表面还发花脱皮。再生料掺太猛——行业里一般按一成半到两成半掺新料兜底，电镀这种高表面要求的场景掺比还要压得更低；一上来就高比例纯再生，性能衰减立竿见影。料没干燥——PC本身吸潮，再生料带水加工，强度和表面一起掉。把这些坑都避开，再生PC/ABS才是高性价比路线；避不开呢，省的那点料钱全赔在次品和退货上。宁波市科隆新材料有限公司给客户的一贯建议是：先把件的厚薄、耐热、表面要求问清楚，再定配比和相容剂，别一上来就追低价。
| 成本项 | 新料PC/ABS合金 | 再生PC/ABS（配方到位） | 差异说明 |
|---|
| 原料采购价 | 基准价 | 明显更低 | 再生合金主要优势，壳体大件明显 |
| 配比/相容剂 | 原厂成熟配方 | 需复配相容剂定比例 | 配方不到位就脆、就花 |
| 加工良率 | 稳定 | 初期需调机干燥 | 水分、配比不稳直接出次品 |
| 表面/喷涂 | 好 | 掺比过高易发花脱皮 | 电镀高表面要求掺比要低 |
| 冲击/耐热 | 高 | 改性到位可接近 | 配比决定，别拿低档料硬上 |
| 综合成本 | 高 | 配方到位则显著更低 | 算上良率和退货再下结论 |
边界清单：
放心用：普通电器外壳、设备外壳、汽车内饰、对外观要求一般的结构件，这些是再生PC/ABS的主场。
要留心：薄壁大件走高流动级，靠近热源走耐热级，电子件走阻燃级；再生料掺比从低往高试，别一步到位。
别碰：电镀、高表面高光要求的外露件，再生掺比要压得很低甚至不用；对长期耐冲击有高要求的安全结构件，别拿配方没到位的低等级再生合金硬上，省那点料钱不划算。
省下来的料钱，最后都还给了脆裂的壳体
再讲个外壳厂的真实教训（为叙述方便做了合并改写）。宁波周边一家做打印机外壳的厂，前两年为了压成本，自己把回收PC和回收ABS按感觉掺一起上机，也没加相容剂。刚开始出的壳看着还行，可一批装成整机后跌落测试全裂，表面还带着一层发花的印子，喷涂盖不住，整批返工。他们以为是料脏了，换了批干净的料还是一样——因为根子根本不在脏不脏，在两相根本没熔成合金。
问题卡了许久，直到他们找到宁波市科隆新材料有限公司。科隆新材一看就明白症结在哪：自己随便掺的回收PC和ABS，没相容剂牵线，界面松，冲击自然上不去。照此调整，换成配好相容剂、按稳定比例做出来的再生PC/ABS合金，外壳外观要求中等，掺比压在稳妥范围；加工前把料烘透，每批都附冲击、流动和配比数据。换料之后，跌落测试过了，表面发花的问题没了，喷涂一次成活。这厂后来算了笔账：再生合金的单价虽不如自己瞎掺便宜，但返工和退货少了，综合成本反而更低，老板再不用每批货到了先提心吊胆。
再生PC/ABS不是把两种回收料倒在一起那么简单，它实打实是一门配方活。配方对了，既省又稳；配方靠碰运气，今天省下去的那点料钱，迟早连本带利吐回去。
（注：故事性描述用于讲透原理，不构成对特定订单的记录。）
你的件要走量还是走质，先想清楚再下单
下面把应用场景与推荐等级列成一张对照，按需取用即可。下单之前再提醒一句：再生PC/ABS是个配方料，别只看每吨报价，要问清配比、相容剂加没加、能不能提供连续批次的检测数据。这几样都做到位了，既省又稳才落得了地。
| 应用场景 | 推荐等级 | 注意事项 | 何时别用 |
|---|
| 普通电器外壳 | 再生PC/ABS通用级 | 配比均衡，干燥到位 | 高表面电镀件 |
| 汽车内饰件 | 再生PC/ABS高抗冲级 | 相容剂增容，盯冲击 | 关键受力安全件 |
| 电子电器壳体 | 再生PC/ABS阻燃级 | 阻燃与绝缘双达标 | 非阻燃料做高压件 |
| 薄壁/复杂壳体 | 再生PC/ABS高流动级 | 流动性要够 | 低流动料充不满模 |
| 结构件/杂件 | 再生PC/ABS掺混级 | 掺比从低往高试 | 纯再生做高精度件 |
| 近热源电器件 | 再生PC/ABS耐热级 | 盯热变形温度 | 低耐热料靠近热源 |
你的产品是走量还是走质？想清楚再下单——再生PC/ABS配方到位，才谈得上又省又稳。
再生PC/ABS合金，配方到位才既省又稳
宁波市科隆新材料有限公司长期供应再生PC/ABS合金原料，覆盖通用级、高抗冲级、耐热级等多等级，应用于电器壳体、汽车内饰、电子外壳等常见场景。两种再生料怎么配？配比和相容剂该怎么定？
声明：本文提及的品牌及商标权归各自原厂所有。本文为第三方选材知识分享，文中涉及的具体等级、参数、价格、认证等信息以各厂家官方最新资料为准。本文不构成任何采购或投资建议。
They say "recycled PC and recycled ABS can be mixed in randomly, they're both plastic," but the body is honest—last month, a batch of shells cracked, peeling, and a batch of surface cracks caused the production line to stop for three days, leaving the boss stomping his foot in the workshop. Where did the problem lie? He thought PC and ABS together were alloys, but didn't realize these two materials had inherently incompatible personalities. No one was intermediary, and no matter how long they dragged on, they were two different forces. Today, let's talk about recycled PC/ABS alloys: how do you mix these two recycled materials, and how do you add compatibilizers to save money while maintaining the quality of the housing?
Let's take two minutes to get to know the main character. Ningbo Kelong New Materials Co., Ltd. is an integrated plastic raw material supplier integrating industry and trade, specializing in recycled plastic raw materials for a long time, covering PP, PE, ABS, PC, PET, PVC, HIPS, PA, PC/ABS, and other directions. Today's main focus is recycled PC/ABS alloy. Let's break down these two letters: PC stands for polycarbonate, which is hard, heat-resistant, and impact-resistant, but expensive, has poor flowability, and is difficult to produce thin and large pieces; ABS stands for acrylonitrile-butadiene-styrene, which has good flowability, a glossy surface, is easy to spray and print, and is cheap, but has low heat resistance and is somewhat brittle at low temperatures. By blending these two in proportional alloys, PC produces a skeleton and heat resistance, while ABS provides fluidity and luster. By combining these strengths, it becomes a material widely used in laptop shells, appliance housings, and automotive interiors. Its recycling source is recycled from waste electrical and electronic casings, re-sorting and pelletizing PC and ABS, then mixing with compatibilizers and proportions to make new alloys. PC recycling is regulated according to GB/T 40006.7, and ABS recycling according to GB/T 40006.5, each according to national standards. Don't overlook these two criteria when selecting materials.
PC and ABS aren't alloys just because they're mixed; someone has to be involved
Many people have a misunderstanding about PC/ABS alloys: isn't it just PC with a bit of ABS? Just pour it into a mixer and stir, isn't that enough? Honestly, this is exactly where recycled PC/ABS often fails. Although PC and ABS can be blended, their compatibility is limited—PC is the continuous phase, ABS is the dispersed phase. If the interface between the two is not firmly bonded, the finished part is like two unbonded splints, which crack at the interface under a slight external force, resulting in poor impact strength and a prone surface cracking and peeling.
Therefore, true PC/ABS alloys hide a key role in their formulations: compatibilizers. They are close to PC on one end and ABS on the other, gluing the interface firmly like glue, grinding the particles of the dispersed phase finely, turning the alloy from "two splints" into a uniform system "you and me." Common compatibilizers are maleic anhydride grafts, such as ABS grafted maleic anhydride, SEBS grafted maleic anhydride, or styrene-acrylonitrile-maleic anhydride ternary copolymer. Industry data shows that adding these compatibilizers in the appropriate ratio significantly increases the impact strength of PC/ABS, reduces phase size to a minimum, and tightens the interface. Because both phases have undergone processing and performance degradation, recycled materials depend more heavily on compatibilizers than new materials—which is why recycled PC/ABS that are "randomly mixed" have problems as soon as they are put into the machine.
Let me explain this with another analogy. PC and ABS are like two incompatible partners: PC is steady, sturdy, heat-resistant, but slow-moving and hard to communicate; ABS is flexible, easy to talk to, and quick to work, but the base is soft and can't withstand heat. They just fit into an office, each doing their own thing, and when pressured, they break up. The combinant is the mediator—the left side knows PC, the right knows ABS, and they tighten their strength together. When tightened well, this material has both the PC framework and the liveliness of ABS, making it perfect for the shell; If not tightened well, it's just a puddle of paste that doesn't stick firmly—one drop and the company will fall apart.
Figure 1 Recycled PC/ABS Electrical Housing Production Line
Ratio and Combinant Are the Real Formula for Recycled Alloy
To understand recycled PC/ABS, you need to grasp two variables: ratio and compatibilizer. The ratio determines character, and the compatibilizer determines whether it becomes an alloy.
Let's start with the formulation. If there is more PC, the alloy is harder, more heat-resistant, and more impact-resistant, but its fluidity is poorer and the price is higher; If there is more ABS, it has better flowability, easier molding, and is cheaper, but its heat resistance and impact resistance are lower. In the industry, it's common to have PC as the majority and ABS as the smaller part. At this ratio, the alloy's gap impact and thermal deformation temperatures are much higher than those of pure ABS, but it's also easier to form than pure PC. Recycled materials for alloying are also adjusted within this framework: if you want to withstand heat, add more PC; if you want good forming, add more ABS. The ratio isn't decided on a whim; it's determined bit by bit, depending on your thickness, heat resistance, and surface requirements. There's another trick: PC absorbs moisture, and recycled PC especially needs to be dry, otherwise the strength and surface of the finished shell will be affected; ABS's rubber phase will age after several rounds of processing, reducing impact. So when making recycled alloys, the formula often adds a bit of toughening agent to restore the toughness that has fallen off the ABS. These details are adjusted by the original manufacturer for the new material, while the recycled material must be redone by the modification factory.
Now, let's talk about the compatibilizer. Both recycled PC and recycled ABS have already undergone one processing, and the interface between the two phases is naturally weaker than that of new material. Without compatibilizer or insufficiently, the resulting parts are brittle and have poor surfaces. How much and which type to add directly determines whether the batch of recycled alloy is "mass-produced material" or "material that can only be used for low-cost miscellaneous parts." The standard method is to mix recycled PC and ABS in proportions during twin-screw extrusion, then add compatibilizer, toughening agent, and chain extender and antioxidant if necessary, react and extrude to re-pelletize. Only after completing this whole process does recycled PC/ABS truly "alloy" into a mixture, rather than simply mixing two piles of material.
The recycling process of this line is also worth mentioning: the casing of waste electrical appliances is crushed first, then the material sorting separates PC, ABS, and other plastics, washing to remove oil stains and labels; Then, according to the proportions, recycled PC and recycled ABS are mixed, compatibilizer, toughening agent, antioxidant are added, and chain extender is added if necessary, followed by a double-screw reaction extrusion to pelletize. Because PC absorbs moisture, it must be thoroughly dried before pelletizing and loading. Half of the effort in the entire line is sorting—whether PC and ABS are properly separated, and the other half is in the formulation—whether the compatibilizer and proportions are adjusted correctly. This is why, even though it's called "recycled PC/ABS," the price difference between factories is significant: the difference lies in the sorting and formulation stages.
Ningbo Kelong New Materials Co., Ltd. connects with recycled PC/ABS clients, and is used to figuring out three things first: how thin the parts are, what heat resistance requirements are, and whether the surface needs to be sprayed or electroplated. These factors directly determine how to mix PC and ABS, how to choose compatibilizers, and how much recycled material can be added. The table below clarifies common grades of recycled PC/ABS by application, with data compiled based on GB/T 40006.5, GB/T 40006.7, and industry publicly available data.
| Grade Name | Main Source/Process | Key Indicators | Typical Uses |
|---|
| Recycled PC/ABS General Grade | Electrical Housing Recycling and Granulation | Balanced Blending, Balancing Impact and Flow | Ordinary Electrical Housing, Equipment Housing |
| Recycled PC/ABS High Impact Resistance Grade | Recycling + Compatibilizer/Toughening Modification | Compatibilizer enhances capacity, impact improvement | Car interior, impact-resistant shell |
| Recycled PC/ABS flame-retardant grade | Recycling of flame-retardant electrical components | Flame-retardant compliant, insulation qualified | Electronic and electrical enclosures |
| Recycled PC/ABS High-Flow Grade | Recycled modified to improve fluidity | Good fluidity, easy to fill molds | Thin-walled large parts, complex housings |
| Recycled PC/ABS Blends | Recycled material mixed with new material is about 15%–25% | Stable formulation, relatively low cost | Structurally ordinary component |
| Recycled PC/ABS Heat-Resistant Grade | Recycled Modified Heat Deflection Temperature | HDT is relatively high | Electrical components near a heat source |
Table Note: The above is compiled based on GB/T 40006.5 (ABS), GB/T 40006.7 (PC) national standards for recycled plastics, and publicly available industry information; PC/ABS alloys achieve performance balance through blending ratios and compatibilizers, and high-surface-requirement scenarios such as electroplating impose stricter restrictions on the proportion of recycled material. For more grades and physical property parameters, please refer to the manufacturer's official TDS. For large enclosures, it is recommended to first create samples to verify appearance and drop performance before selection.
The premise of being both economical and stable is that the formula should not rely on luck.
The cost-saving account for recycled PC/ABS is really great if calculated correctly, but a real pitfall if calculated incorrectly. Both virgin PC and ABS are not cheap, and electrical housings are large pieces with high usage. Using the right recycled alloy can make the material price difference very significant. But the trap in this material lies precisely in 'how to mix the two materials'.
The ratio wasn’t mixed properly—too little PC and the part cracks as soon as it’s dropped; too much ABS and it deforms near heat sources. Not enough compatibilizer—interfaces between the two phases are loose, impact resistance is low, and the surface shows blotches and peeling. Using too much recycled material—typically in the industry, fresh material is added as a safeguard at a ratio of 10–25%, and for high-surface-quality applications like plating, the proportion is kept even lower; starting with a high proportion of pure recycled material leads to immediate performance decline. Materials not dried—PC naturally absorbs moisture, and processing recycled material with water further reduces strength and surface quality. Avoiding all these pitfalls, recycled PC/ABS becomes a cost-effective option; if they aren’t avoided, the savings on materials will be lost on defective products and returns. Ningbo Kolon New Materials Co., Ltd. consistently advises clients: first clarify the part’s thickness, heat resistance, and surface requirements, then decide on the ratio and compatibilizer—don’t rush for the lowest price from the start.
| Cost items | New PC/ABS alloy | Recycled PC/ABS (formulation in place) | Difference Explanation |
|---|
| Raw material purchase price | Benchmark price | Significantly lower | The main advantage of recycled alloy is that the large parts of the casing are obvious. |
| Blending/Compatibilizer | Original factory mature formula | Compatible agent needs to be blended in a fixed ratio | If the formula is not right, it will be brittle and crumbly. |
| Processing yield | Stable | Initial stage requires machine drying | Unstable moisture and proportion directly produce defective products |
| Surface / Coating | Good | Too high a mixing ratio can easily cause blotching and peeling | Electroplating with high surface requirements should have a low doping ratio |
| Impact/Heat Resistance | Tall | Modification is adequate and can be approached | The mix ratio determines it; don't force low-grade materials. |
| Comprehensive cost | Tall | If the formula is right, it is significantly lower | Make a conclusion after considering yield rate and returns |
Boundary List:
Safe to use: ordinary appliance housings, equipment enclosures, car interiors, and structural parts with general appearance requirements are the main applications for recycled PC/ABS.
Be careful: thin-walled large parts use high-flow grade, parts near heat sources use heat-resistant grade, and electronic components use flame-retardant grade; when blending recycled material, start from a low ratio and increase gradually, don't go all at once.
Do not touch: exposed parts that require electroplating or a high-gloss finish on the surface should have the recycled content kept very low or even not used; for safety structural parts that require long-term impact resistance, do not force a low-grade recycled alloy with an incomplete formula, saving a little material cost is not worth it.
The money saved on materials ended up being returned to the brittle casing in the end.
Here's another real lesson from a casing factory (merged and rewritten for easier narration). A factory around Ningbo that makes printer casings tried to cut costs a couple of years ago by mixing recycled PC and recycled ABS based on feel, without adding any compatibilizer. At first, the casings looked fine, but once a batch was assembled into complete machines, they all cracked in drop tests, with a layer of mottled marks on the surface that paint couldn’t cover, requiring the entire batch to be reworked. They thought it was due to dirty material, so they tried a clean batch, but the result was the same—because the root cause wasn’t cleanliness at all; the two phases simply hadn’t formed an alloy.
The problem lingered for a long time, until they found Ningbo Kolon New Materials Co., Ltd. Kolon New Materials immediately understood where the issue was: they had randomly mixed recycled PC and ABS without a compatibilizer, so the interface was loose, and of course, the impact resistance was low. Following this observation, they adjusted the materials, switching to recycled PC/ABS alloy mixed with the proper compatibilizer and in a stable ratio. The exterior appearance requirements were moderate, and the mix ratio was kept within a safe range; before processing, the material was thoroughly dried, and each batch came with impact, flow, and ratio data. After switching the materials, the drop tests passed, the problem of surface marbling disappeared, and the coating succeeded in one application. Later, the factory did a calculation: although the unit price of the recycled alloy was not as cheap as their previous random mixing, the reduction in rework and returns actually lowered the overall cost, and the boss no longer had to worry every time a batch arrived.
Recycled PC/ABS is not as simple as just mixing two types of recycled materials together; it is truly a matter of formulation. If the formulation is right, it saves money and is stable; if the formulation relies on luck, the small savings in material costs today will inevitably be paid back with interest sooner or later.
(Note: The narrative description is used to explain the principles and does not constitute a record of any specific order.)
You need to decide whether your pieces are about quantity or quality before placing an order.
Below is a comparison table of application scenarios and recommended ratings, which you can use as needed. One more reminder before placing an order: recycled PC/ABS is a formulated material, so don’t just look at the price per ton. Make sure to ask about the formulation ratio, whether compatibilizers are added, and whether continuous batch test data can be provided. Only when all of these are in place will it be both cost-effective and stable.
| Application scenario | Recommendation Level | Precautions | When Not to Use |
|---|
| Ordinary Electrical Appliance Housings | Recycled PC/ABS General Grade | Balanced Mix, Proper Drying | High-Surface Plated Parts |
| Automotive Interior Parts | Recycled PC/ABS High Impact Grade | Increase with Compatibilizer, Monitor Impact | Critical Load-Bearing Safety Parts |
| Electronic and Electrical Housings | Recycled PC/ABS Flame Retardant Grade | Both Flame Retardant and Insulation Standards Met | Non-Flame Retardant Materials for High-Voltage Parts |
| Thin-Wall/Complex Housings | Recycled PC/ABS High Flow Grade | Sufficient Flow Required | Low Flow Materials Cannot Fill Mold Completely |
| Structural Parts/Miscellaneous Parts | Recycled PC/ABS Blended Grade | Try Mix Ratios from Low to High | Pure Recycled for High-Precision Parts |
| Electrical Parts Near Heat Source | Recycled PC/ABS Heat-Resistant Grade | Monitor Heat Distortion Temperature | Low Heat-Resistant Materials Near Heat Source |
Is your product focused on volume or quality? Think carefully before ordering—only when the recycled PC/ABS formulation is correct can it be both cost-effective and stable.
Recycled PC/ABS Alloy: Correct Formulation Ensures Both Cost Efficiency and Stability
Ningbo Kolon New Materials Co., Ltd. supplies recycled PC/ABS alloy raw materials long-term, covering general grade, high impact grade, heat-resistant grade, and more, suitable for electrical housings, automotive interiors, electronic enclosures, and other common applications. How to mix two recycled materials? How to determine the mix ratio and compatibilizer?
Disclaimer: Brands and trademarks mentioned in this article belong to their respective owners. This article is a third-party material selection knowledge sharing, and specific grades, parameters, prices, and certifications mentioned are subject to the latest official information from the manufacturers. This article does not constitute any procurement or investment advice.
