PP/PS多少钱一公斤？
这个问题一搜，从十块一公斤到二十八块一公斤，报价差得比PS比例还多。有人说我买的十块的国产通用用得挺好，有人说我买的二十八的进口高透明才叫高端。到底差在哪？
说实话，问PP/PS多少钱一公斤的人，大概率还没搞懂PP/PS这东西不是一个料——通用级、高透明级、高抗冲级、耐热级、阻燃级，每个分支价格都不一样。你拿通用级的价和高透明比，那不叫比价，叫被忽悠。
PP/PS就是聚丙烯/聚苯乙烯合金，结合了PP的易加工和PS的高透明高刚性，常用于家电外壳、电子电器、包装、办公用品、结构件。
一、主流牌号报价（外企+中企）
先把市面上走量的牌号和参考价摆出来。以下为近期市场参考价，实时价格以当日询价为准。
进口PP/PS（外企大厂）
通用级，参考价约15-22元/公斤。家电外壳、电子电器、包装。
高透明级，参考价约18-25元/公斤。展示用品、高端包装、特殊应用。
高抗冲级，参考价约20-28元/公斤。汽车配件、结构件、电动工具。
国产PP/PS（中企大厂）
通用级，参考价约10-16元/公斤。性价比高，家电外壳、电子电器、包装。
高透明级，参考价约12-20元/公斤。展示用品、高端包装、特殊应用。
玻纤增强级，参考价约11-18元/公斤。结构件、汽车、工业机械。
一句话总结：国产通用10-16块，国产高透明/玻纤增强11-20块，进口通用15-22块，进口高透明/高抗冲18-28块。你要的是啥PS比例和性能，决定了你该在哪一档选。
二、同是PP/PS，价差凭什么这么大
PP/PS的价格差，主要藏在四个地方。
第一，PS比例不同。低PS便宜，高PS贵。PS比例越高，透明度和刚性越好，但抗冲性略降。
第二，透明等级不同。通用级便宜，高透明级贵。高透明需要特殊相容剂，价格更高。
第三，增强方式不同。无筋通用便宜，玻纤增强贵。玻纤增强比无筋通用贵20-40%。
第四，品牌和产地。进口溢价高但批次稳定，国产性价比高但牌号少。同样是高透明级，进口比国产贵30-50%，贵的是品控和研发。
三、采购避坑：别让PS比例骗了你
我见过太多采购，比价比到最后选了最便宜的十块的，然后做出来的制品透明差、刚性差、客户退货，一次损失够买半年的好料。
PP/PS采购这行，水比你想的深。三个坑必须绕开：
第一，看透光率和拉伸强度不看牌号。同一个牌号不同批次性能可能波动，拿到料先测透光率和拉伸强度，和COA对得上再用。别听销售说"差不多"，差不多就是差很多。
第二，警惕以次充好。有些贸易商拿PP当PP/PS卖，拿低PS当高PS卖。要COA、要PS比例检测、要原厂包装，三证合一才敢用。
第三，别只比单价，算综合成本。A料单价10块，做出来制品次品率5%；B料单价16块，次品率1%。算到每件制品上，B料反而更便宜。
四、标准牌号满足不了？看看改性方案
如果你发现标准牌号怎么选都差点意思——比如要高透明又要高抗冲、要耐热又要高流动、要低成本又要阻燃级——那不是PP/PS的问题，是你需要的不是标准PP/PS，是改性PP/PS。
这时候可以看看宁波科隆新材目前在做的高性能改性PP/PS方案，玻纤增强、阻燃、耐候、导电这些方向都有对应牌号在做。有特殊需求的可以私信要一份改性PP/PS的报价参考，比自己买基料再加助剂调试，省的不只是钱，还有试错的时间。
说白了，标准料是大锅饭，改性料是定制菜。你的制品要求越高，越需要定制。
五、常用牌号，私信给你当日报价
上面的价格都是参考价，PP/PS行情一天一个样，丙烯、苯乙烯、相容剂、玻纤、阻燃剂、汇率都在动。
如果你需要进口、国产这些品牌的具体牌号当日报价，私信我，发你一份实时价格表。不绕弯子，报实数。
写在最后
买PP/PS这事儿，十块的和二十八的，差的不是十八。
单价是门槛，选对PS比例和性能才是底线。别让报价单上的数字迷惑了你——你买的不是一公斤塑料，是一公斤能做出高透明家电外壳的方案。把账算到每件制品上，再加上次品退货损失，你才知道谁真便宜谁真贵。
你在PP/PS采购上踩过什么坑？是透明差还是刚性差？评论区聊聊，点赞最高的三位，送一份PP/PS主流牌号选型对照表。
PP/PS和PP有什么区别
PP/PS PS比例怎么选
PP/PS和PS有什么区别
PP/PS改性料厂家怎么选
PP/PS注塑常见问题及解决
How much is PP/PS per kilogram?
PP/PS is not one material: high-transparency, heat-resistant, flame-retardant, and each carries a different price.
1. Mainstream grade quotes (imported + domestic) — recent market references; live prices subject to same-day inquiry.
Imported PP/PS
general-purpose, approx. CNY 15-22/kg. appliance housings; electronics; packaging.
high-transparency, approx. CNY 18-25/kg. display products; premium packaging; special applications.
approx. CNY 20-28/kg. automotive parts; structural parts; power tools.
Domestic PP/PS
general-purpose, approx. CNY 10-16/kg. appliance housings; electronics; packaging.
high-transparency, approx. CNY 12-20/kg. display products; premium packaging; special applications.
GF-reinforced, approx. CNY 11-18/kg. structural parts; automotive; industrial machinery.
2. Why prices differ so much
Four factors: (1) composition — lower levels are cheaper; higher levels give better performance but cost more. (2) transparency grade — premium grades need special formulations and cost more. (3) reinforcement — special applications need special formulations or certification and cost more. (4) Brand and origin — imports carry a premium but offer batch stability; for the same grade, imports cost 30-50% more than domestic, paying for quality control and R&D.
3. Procurement pitfalls
The cheapest material often fails on performance and triggers customer returns. Three traps to avoid:
First, test key properties against the COA instead of trusting the grade name — performance of the same grade can fluctuate between batches. Second, watch out for substitution fraud: some traders pass off cheaper or recycled material as the real thing; demand the COA, a test report and original packaging before use. Third, don't compare unit price alone — calculate total cost per finished part, including rejected-goods loss; a higher-priced grade with a 1% defect rate is often cheaper than a low-priced one with 5% rejects.
4. Standard grades not enough? Consider modified compounds
If standard grades always fall short — for example you need flame retardancy AND high transparency, reinforcement AND chemical resistance, or low cost AND food grade — you don't need standard PP/PS, you need a modified compound. Ningbo Kolong New Materials is developing high-performance modified PP/PS solutions covering glass-fiber reinforcement, flame retardancy, weatherability and conductivity. Message us for a modified PP/PS quote reference — it saves not only money but also trial-and-error time.
In plain terms: standard grades are a big pot of shared rice; modified compounds are a dish cooked to order. The higher your requirements, the more you need customization.
5. Popular grades — same-day quotes via message
All prices above are references; PP/PS prices change daily as feedstocks and exchange rates move. If you need same-day quotes for specific grades, message us and we will send a live price sheet. No beating around the bush — real numbers.
Final words
Unit price is the threshold; choosing the right grade and performance is the baseline. Do the math per finished part, add rejected-goods loss, and you will know who is truly cheap and who is truly expensive.
What pitfalls have you hit when buying this material? The three most-liked comments will receive a grade selection guide.
