生物降解塑料PBAT是怎么生产出来的

PBAT是一种全生物可降解塑料，本文主要对其制备方法与两种生产工艺进行阐述。目前PBAT被应用于超市购物袋，外卖餐盒，农用地膜等农工商医等领域。随着限塑令的推出和绿色消费市场的扩大，PBAT作为环保材料具有较好的发展前景。下面 生物降解颗粒厂家为您分析：

PBAT is a kind of fully biodegradable plastic. This paper mainly describes its preparation method and two production processes. At present, PBAT is used in supermarket shopping bags, take-out lunch boxes, agricultural mulch and other fields of agriculture, industry and medicine. With the introduction of the plastic restriction order and the expansion of the green consumer market, PBAT has a good development prospect as an environmental protection material. The following biodegradable particle manufacturers will analyze for you:

从其化学结构式可知，PBAT是己二酸丁二醇酯(BT)和对苯二甲酸丁二醇酯(BT)的共聚物。兼具PBA(聚己二酸丁二醇酯)和PBT(聚对苯二甲酸丁二醇酯)的特性，既有较好的力学性能，又有较高的延展性和断裂伸长率，还具有优良的生物降解性，是一种全生物可降解塑料。

From its chemical structure formula, PBAT is a copolymer of butylene adipate (BT) and butylene terephthalate (BT). It has the characteristics of PBA (polybutylene adipate) and PBT (polybutylene terephthalate). It has good mechanical properties, high ductility and elongation at break, and excellent biodegradability. It is a fully biodegradable plastic.

生物可降解塑料是在土壤、沙土等自然条件下，与微生物（如细菌/霉菌/藻类等）作用降解成二氧化碳、水等小分子或低分子化合物的塑料。降解塑料主要分为光降解塑料、生物降解塑料、光生物降解塑料。光降解塑料需要充足的光照才能降解，给生产带来了很大局限性，所以光降解塑料的推广并不好。

Biodegradable plastic is a kind of plastic that degrades into carbon dioxide, water and other small or low molecular compounds under natural conditions such as soil, sand and other natural conditions by interacting with microorganisms (such as bacteria/mold/algae). Degradable plastics are mainly divided into photo-degradable plastics, biodegradable plastics and photo-degradable plastics. Photodegradable plastics need sufficient light to degrade, which brings great limitations to production, so the promotion of photodegradable plastics is not good.

生物降解塑料品种已经有几十种，可批量生产和工业化生产的品种主要有：微生物发酵合成的聚羟基脂肪酸酯，化学合成的聚乳酸(PLA)、聚己内酯、二元醇二羧酸脂肪族聚酯(PBS)、脂肪族/芳香族共聚酯、CO2/环氧化合物共聚物(APC)、聚乙烯醇(PVA)等，天然高分子淀粉基塑料及其生物降解塑料共混物、塑料合金等。

There are dozens of biodegradable plastics, and the varieties that can be produced in batches and industrialized production mainly include: polyhydroxy fatty acid esters synthesized by microbial fermentation, polylactic acid (PLA), polycaprolactone, dicarboxylic acid aliphatic polyester (PBS), aliphatic/aromatic copolyesters, CO2/epoxy copolymer (APC), polyvinyl alcohol (PVA), natural polymer starch-based plastics and biodegradable plastic blends Plastic alloy, etc.

以己二酸(AA)、对苯二甲酸(PTA)、丁二醇(BDO)为单体，按照一定比例合成聚己二酸/对苯二甲酸丁二醇酯，工艺过程中在于严格控制反应的酯化方式、酯化时间、缩聚温度、稳定剂等。

With adipic acid (AA), terephthalic acid (PTA) and butylene glycol (BDO) as monomers, polyadipic acid/butylene terephthalate is synthesized in a certain proportion. The key point in the process is to strictly control the esterification mode, esterification time, condensation temperature and stabilizer of the reaction.

这些关键因素能够直接影响合成过程，影响产品的性能。为确保制备出良好的PBAT树脂，所需的工艺条件为：共酯化反应方式，酯化时间为185min，缩聚温度248～250℃，稳定剂添加量70μg/g。

These key factors can directly affect the synthesis process and product performance. To ensure the preparation of good PBAT resin, the required process conditions are: co-esterification reaction mode, esterification time 185 min, polycondensation temperature 248~250 ℃, stabilizer addition 70 μ g/g。

PBAT作为性能良好的环保材料，可以降低石油资源消耗，缓解“白色污染”，对我国可持续发展具有重要意义。

As an environmental protection material with good performance, PBAT can reduce the consumption of oil resources and alleviate "white pollution", which is of great significance to China's sustainable development.

目前全球PBAT市场需求旺盛，由于PBAT价格较高，而我国具备良好的原料生产条件。PBAT产品主要用于出口，行业集中度高，潜在市场大，产业化前景好。您有相关需求就来我们网站 //www.ucgmex.com咨询吧！

At present, the global PBAT market is in strong demand. Due to the high price of PBAT, China has good raw material production conditions. PBAT products are mainly used for export, with high industry concentration, large potential market and good industrialization prospects. Come to our website if you have relevant requirements //www.ucgmex.com Ask!