生物降解材料的分类有哪些? - 常见问题

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生物降解材料的分类有哪些?

生物降解材料的分类有哪些?

来源网址:http://www.rsoau.com 2020-07-31 15:52:43    

生物降解材料按其生物降解进程大致可分为两类。一类为全生物降解材料,如天然高分子纤维素、人工合成的聚己内酯等,其分解效果首要来自:

Biodegradable materials can be roughly divided into two categories according to their biodegradation process. One is biodegradable materials, such as natural macromolecule cellulose and synthetic polycaprolactone, whose decomposition effect comes mainly from:
①由于微生物的迅速增长导致塑料结构的物理性溃散;
The rapid growth of microorganisms leads to the physical collapse of plastic structures.
②由于微生物的生化效果、酶催化或酸碱催化下的各种水解;
(2) Due to the biochemical effects of microorganisms, enzymatic hydrolysis or acid-base hydrolysis;
③其他各种因素形成的自由基连锁式降解。另一类为生物崩解性材料,如淀粉和聚乙烯的掺混物,其分解效果首要由于添加剂被损坏并削弱了聚合物链,使聚合物分子量降解到微生物可以消化的程度,终究分解为二氧化碳(CO2)和水。
(3) Free radical chain degradation formed by other factors. The other is biodisintegrating materials, such as the mixture of starch and polyethylene, whose decomposition effect is mainly due to the damage of additives and the weakening of polymer chains, so that the molecular weight of polymer can be degraded to the digestible degree of microorganisms, and eventually decomposed into carbon dioxide (CO2) and water.
生物崩解性材料大多选用添加淀粉和光敏剂的办法,与聚乙烯和聚苯乙烯共混生产。
Biodisintegrating materials are mostly produced by blending polyethylene and polystyrene with starch and photosensitizer.
研讨标,淀粉基生物降解塑料袋终究将进入废物场,不触摸阳光,即使其中有发生物双降解效果,所发生的降解效果也首要以生物降解为主。必定时刻的试验标明:废物袋无明显的降解现象,废物袋没有天然破损,甚至对袋里的废物起到必定的"保鲜"效果。
The objective of the study is that starch-based biodegradable plastic bags will eventually enter the waste yard without touching the sunlight. Even if there are biodegradable effects, biodegradable effects will be the primary one. Tests at certain times show that there is no obvious degradation of waste bags, no natural damage of waste bags, and even play a certain "fresh" effect on the waste in bags.
关于处理环境污染,虽然含淀粉基的塑料比一次性塑料制品有用,但由于仍选用不能生物降解的聚乙烯或聚酯材料为质料,故除了添加的淀粉可以降解外。
As for the treatment of environmental pollution, although starch-based plastics are more useful than disposable plastics, polyethylene or polyester materials, which can not be biodegraded, are still used as materials, so in addition to the addition of starch, they can be degraded.
剩下的许多聚乙烯或聚酯仍会残存而不能完全生物降解,只是分解为碎片,无法回收,进入土壤后状况更糟,对废弃物的处理形成紊乱,因而完全生物降解材料成为降解材料的研讨。
Many of the remaining polyethylene or polyester will remain and can not be completely biodegraded, but decomposed into debris, can not be recovered, the situation is worse after entering the soil, the treatment of waste is disordered, so complete biodegradable materials become the focus of research on degradable materials.
以上信息是我们可降解颗粒厂家整理发布希望对大家有所帮助我们的网站是:http://www.rsoau.com!
Above information is our degradable particle manufacturer collate and publish hope to help you with our website is: http://www.rsoau.com!

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