PBAT/PLA多少钱一公斤?
这个问题一搜,从十五块一公斤到四十块一公斤,报价差得比降解速度还多。有人说我买的十五的国产通用用得挺好,有人说我买的四十的巴斯夫高端才叫食品级。到底差在哪?
说实话,问PBAT/PLA多少钱一公斤的人,大概率还没搞懂PBAT/PLA这东西不是一个料——通用级、食品级、吹膜级、注塑级、高降解级,每个分支价格都不一样。你拿通用级的价和食品级比,那不叫比价,叫被忽悠。
PBAT/PLA就是聚己二酸对苯二甲酸丁二醇酯/聚乳酸合金,结合了PBAT的柔韧性和PLA的刚性,可生物降解,常用于包装袋、一次性餐具、食品包装、农用地膜。
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。
巴斯夫(BASF,德国)
ecovio PBAT/PLA系列,通用级,参考价约25-40元/公斤。包装袋、一次性餐具、食品包装。
ecovio PBAT/PLA食品级,参考价约30-45元/公斤。食品接触包装、一次性餐具。
金发科技(Kingfa,中国)
PBAT/PLA系列,通用级,参考价约15-30元/公斤。包装袋、农用地膜、一次性用品。
PBAT/PLA吹膜级,参考价约18-32元/公斤。包装袋、农用地膜、购物袋。
海正生物(Hisun,中国)
REVODE系列PLA/PBAT合金,通用级,参考价约20-35元/公斤。注塑、吹膜、纤维。
REVODE201 PLA,参考价约25.8元/公斤。杯子、一次性餐具、文具、玩具。
国产PBAT/PLA(其他中企)
国产通用级,参考价约12-25元/公斤。性价比高,包装袋、农用地膜、一次性用品。
国产食品级,参考价约18-30元/公斤。食品接触包装、一次性餐具。
一句话总结:国产通用12-25块,国产食品级18-30块,进口通用25-40块,进口食品级30-45块。你要的是啥降解速度和用途,决定了你该在哪一档选。
二、同是PBAT/PLA,价差凭什么这么大
PBAT/PLA的价格差,主要藏在四个地方。
第一,PLA含量不同。PLA含量20%左右便宜,含量50%以上刚性好但贵。PLA含量越高,刚性和透明度越好,但柔韧性越差。
第二,降解速度不同。快速降解级便宜,可控降解级贵。可控降解需要特殊配方,价格更高。
第三,用途不同。通用级便宜,食品级/医疗级贵。特殊用途需要特殊认证。
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多。同样是通用级,巴斯夫比国产贵30-50%,贵的是品控和研发。
三、采购避坑:别让降解速度骗了你
我见过太多采购,比价比到最后选了最便宜的十二的,然后做出来的包装袋降解太快、货架期短、客户退货,一次损失够买半年的好料。
PBAT/PLA采购这行,水比你想的深。三个坑必须绕开:
第一,看熔指和降解时间不看牌号。同一个牌号不同批次性能可能波动,拿到料先测熔指和降解时间,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。有些贸易商拿普通塑料当可降解卖,拿低PLA含量当高含量卖。要COA、要PLA含量检测、要降解认证,三证合一才敢用。
第三,别只比单价,算综合成本。A料单价12块,做出来包装袋次品率5%;B料单价25块,次品率1%。算到每个包装袋上,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——比如要食品级又要快速降解、要吹膜又要高刚性、要低成本又要可控降解——那不是PBAT/PLA的问题,是你需要的不是标准PBAT/PLA,是改性PBAT/PLA。
这时候可以看看宁波科隆新材目前在做的高性能改性PBAT/PLA方案,增韧、增强、可控降解、食品级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PBAT/PLA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,PBAT/PLA行情一天一个样,己二酸、对苯二甲酸、丁二醇、乳酸、汇率都在动。
如果你需要巴斯夫、金发科技、海正生物、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PBAT/PLA这事儿,十二的和四十的,差的不是二十八。
单价是门槛,选对降解速度和用途才是底线。别让报价单上的数字迷惑了你——你买的不是一公斤塑料,是一公斤能做出可降解包装袋的方案。把账算到每个包装袋上,再加上次品退货损失,你才知道谁真便宜谁真贵。
你在PBAT/PLA采购上踩过什么坑?是降解太快还是货架期短?评论区聊聊,点赞最高的三位,送一份PBAT/PLA主流牌号选型对照表。
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PBAT/PLA吹膜常见问题及解决
How much is PBAT/PLA per kilogram?
PBAT/PLA is not one material: food-grade, injection, and each carries a different price.
1. Mainstream grade quotes (imported + domestic) — recent market references; live prices subject to same-day inquiry.
BASF
general-purpose, approx. CNY 25-40/kg. bags; food packaging.
approx. CNY 30-45/kg. food contact packaging.
Kingfa
general-purpose, approx. CNY 15-30/kg. bags.
approx. CNY 18-32/kg. bags; shopping bags.
PBAT/PLA
general-purpose, approx. CNY 20-35/kg. injection.
REVODE201 PLA, approx. CNY 25.8/kg. toys.
Domestic PBAT/PLA
Domestic general-purpose, approx. CNY 12-25/kg. bags.
Domestic food-grade, approx. CNY 18-30/kg. food contact packaging.
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) application — 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 PBAT/PLA, you need a modified compound. Ningbo Kolong New Materials is developing high-performance modified PBAT/PLA solutions covering glass-fiber reinforcement, flame retardancy, weatherability and conductivity. Message us for a modified PBAT/PLA 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; PBAT/PLA 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.