PA66/PPA多少钱一公斤?
这个问题一搜,从三十块一公斤到七十块一公斤,报价差得比PPA比例还多。有人说我买的三十的国产通用用得挺好,有人说我买的七十的EMS GVX-6H才叫高端。到底差在哪?
说实话,问PA66/PPA多少钱一公斤的人,大概率还没搞懂PA66/PPA这东西不是一个料——通用级、玻纤增强级、阻燃级、耐高温级、耐水解级,每个分支价格都不一样。你拿通用级的价和玻纤增强比,那不叫比价,叫被忽悠。
PA66/PPA就是聚酰胺66/聚邻苯二甲酰胺合金,结合了PA66的易加工和PPA的耐高温、低吸水,常用于汽车发动机周边、电子电器、SMT连接器、LED反射器。
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。
杜邦(DuPont,美国)
Zytel HTN系列,耐高温PA66/PPA,参考价约48元/公斤。汽车发动机周边、电子电器、SMT连接器。
Zytel 51G35HSL,35%玻纤增强热稳定阻燃,参考价约32.5元/公斤。汽车、电子电器、结构件。
Zytel 70G13HS1L,13%玻纤增强热稳定,参考价约35元/公斤。汽车、电子电器、通用应用。
Zytel FR7026V0F,无卤阻燃热稳定纯树脂,参考价约48元/公斤。电子电器、阻燃应用。
EMS(瑞士)
GVX-6H,60%玻纤增强高刚性高强度耐高温,参考价约68元/公斤。汽车配件、电子电器、高端结构件。
GV-6H,60%玻纤增强,参考价约65元/公斤。电子电器、工程配件、高端应用。
Grivory系列,通用级,参考价约40-60元/公斤。汽车、电子、精密零件。
国产PA66/PPA(中企大厂)
国产通用级,参考价约28-45元/公斤。性价比高,通用注塑、汽车、电子。
国产玻纤增强级,参考价约32-55元/公斤。结构件、汽车、连接器。
国产耐高温级,参考价约35-60元/公斤。汽车发动机周边、SMT连接器、LED反射器。
一句话总结:国产通用28-45块,国产玻纤增强32-55块,进口通用40-60块,进口玻纤增强/高端48-70块。你要的是啥PPA比例和性能,决定了你该在哪一档选。
二、同是PA66/PPA,价差凭什么这么大
PA66/PPA的价格差,主要藏在四个地方。
第一,PPA比例不同。PPA比例20%左右便宜,比例50%以上耐高温但贵。PPA比例越高,耐热性和低吸水性越好,但加工越难。
第二,玻纤增强不同。无筋通用便宜,30%玻纤增强适中,60%玻纤增强贵。玻纤含量越高,强度和刚性越好,但加工越难。
第三,阻燃等级不同。通用级便宜,无卤阻燃级贵。无卤阻燃需要特殊配方,价格更高。
第四,品牌和产地。进口溢价高但批次稳定,国产性价比高但高端牌号少。同样是玻纤增强,EMS比国产贵30-50%,贵的是品控和研发。
三、采购避坑:别让PPA比例骗了你
我见过太多采购,比价比到最后选了最便宜的二十八的,然后做出来的制品耐热不够、SMT回流焊变形、客户退货,一次损失够买半年的好料。
PA66/PPA采购这行,水比你想的深。三个坑必须绕开:
第一,看热变形温度和熔指不看牌号。同一个牌号不同批次性能可能波动,拿到料先测热变形温度和熔指,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PA66当PA66/PPA卖,拿低PPA比例当高比例卖。要COA、要PPA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28块,做出来SMT连接器合格率90%;B料单价48块,合格率99%。算到每个连接器上,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——比如要无卤阻燃又要高耐热、要60%玻纤增强又要高流动、要低成本又要SMT级——那不是PA66/PPA的问题,是你需要的不是标准PA66/PPA,是改性PA66/PPA。
这时候可以看看宁波科隆新材目前在做的高性能改性PA66/PPA方案,玻纤增强、无卤阻燃、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PA66/PPA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,PA66/PPA行情一天一个样,己二胺、对苯二甲酸、间苯二甲酸、玻纤、汇率都在动。
如果你需要杜邦、EMS、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PA66/PPA这事儿,三十的和七十的,差的不是四十。
单价是门槛,选对PPA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SMT耐高温连接器的方案。把账算到每个连接器上,再加上合格率和退货损失,你才知道谁真便宜谁真贵。
你在PA66/PPA采购上踩过什么坑?是耐热不够还是SMT变形?评论区聊聊,点赞最高的三位,送一份PA66/PPA主流牌号选型对照表。
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How much is PA66/PPA per kilogram?
PA66/PPA is not one material: GF-reinforced, flame-retardant, and each carries a different price.
1. Mainstream grade quotes (imported + domestic) — recent market references; live prices subject to same-day inquiry.
DuPont
approx. CNY 48/kg. engine compartments; electronics; SMT connectors.
Zytel 51G35HSL, approx. CNY 32.5/kg. automotive; electronics; structural parts.
Zytel 70G13HS1L, approx. CNY 35/kg. automotive; electronics.
Zytel FR7026V0F, approx. CNY 48/kg. electronics.
EMS
GVX-6H, approx. CNY 68/kg. automotive parts; electronics.
GV-6H, approx. CNY 65/kg. electronics; premium applications.
general-purpose, approx. CNY 40-60/kg. automotive; electronics; precision parts.
Domestic PA66/PPA
Domestic general-purpose, approx. CNY 28-45/kg. general injection; automotive; electronics.
Domestic GF-reinforced, approx. CNY 32-55/kg. structural parts; automotive; connectors.
approx. CNY 35-60/kg. engine compartments; SMT connectors; LED reflectors.
2. Why prices differ so much
Four factors: (1) composition — lower levels are cheaper; higher levels give better performance but cost more. (2) grade level — premium grades need special formulations and cost more. (3) flame-retardant grade — 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 heat deflection temperature and melt flow index 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 PA66/PPA, you need a modified compound. Ningbo Kolong New Materials is developing high-performance modified PA66/PPA solutions covering glass-fiber reinforcement, flame retardancy, weatherability and conductivity. Message us for a modified PA66/PPA 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; PA66/PPA 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.