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什么是可降解塑料原材料?

什么是可降解塑料原材料?

来源网址:https://www.swjjkl.com/ 2021-05-26 16:18:51    

通过优化生产原料和生产工艺的选择,可降解塑料可以在阳光、雨水和微生物的共同作用下,在几天或几个月内逐渐分解成碎片,zui终完全降解。可降解塑料的原材料主要包括聚乳酸、多羟基脂肪酸酯、二氧化碳共聚物、淀粉、改性淀粉或其他纤维素、光敏剂、生物降解剂等。

By optimizing the selection of raw materials and production process, degradable plastics can be gradually decomposed into fragments in a few days or months under the joint action of sunlight, rain and microorganisms, and finally completely degraded. The raw materials of degradable plastics mainly include polylactic acid, polyhydroxy fatty acid ester, carbon dioxide copolymer, starch, modified starch or other cellulose, photosensitizer, biodegradable agent, etc.
可降解是指可以自然分解的化合物,主要包括纸、木材、植物、食物等。,zui终会在微生物的作用下形成二氧化碳和水等自然界常见的形式。无处不在的塑料产品方便了人们的生活,但它们产生的塑料垃圾对生态环境造成了很大的污染。以塑料包为首的塑料产品造成的白色污染,正一步步危害着自然环境和人们的正常生活。为了应对“白色污染”,一个重要的方法就是用可降解塑料代替普通的塑料。
Degradable refers to compounds that can be naturally decomposed, mainly including paper, wood, plants, food, etc., Zui will eventually form carbon dioxide, water and other common forms in nature under the action of microorganisms. Ubiquitous plastic products facilitate people's lives, but the plastic waste they produce has caused great pollution to the ecological environment. The white pollution caused by plastic products headed by plastic bags is endangering the natural environment and people's normal life step by step. In order to deal with "white pollution", an important way is to use degradable plastics instead of ordinary plastics.
什么是可降解塑料原材料
What are degradable plastic raw materials
通过优化生产原料和生产工艺的选择,可降解塑料可以在阳光、雨水和微生物的共同作用下,在几天或几个月内逐渐分解成碎片,zui终完全降解。目前,可降解塑料的原材料主要包括:
By optimizing the selection of raw materials and production process, degradable plastics can be gradually decomposed into fragments in a few days or months under the joint action of sunlight, rain and microorganisms, and finally completely degraded. At present, the raw materials of degradable plastics mainly include:
聚乳酸(PLA)是从植物糖中提取的丙交酯单体聚合而成,在工业堆肥条件下可完全降解为水和二氧化碳。
Poly (lactic acid) (PLA) is synthesized from lactide monomer extracted from plant sugar, which can be completely degraded into water and carbon dioxide under industrial composting conditions.
多羟基脂肪酸酯(PHA)是微生物通过各种碳源发酵合成的不同结构的脂肪族共聚酯,不仅可以用于包装材料、农用薄膜等。,还可广泛应用于医药、化妆品、动物饲料等领域。
Polyhydroxy fatty acid esters (PHA) are aliphatic copolyesters with different structures synthesized by microorganisms through fermentation of various carbon sources, which can not only be used as packaging materials, agricultural films, etc., It can also be widely used in medicine, cosmetics, animal feed and other fields.
二氧化碳共聚物(PPC),外观类似于聚乙烯塑料,弹性好,能在短时间内在土壤中完全降解,直接被植物吸收利用。
Carbon dioxide copolymer (PPC), similar to polyethylene plastic in appearance, has good elasticity, can be completely degraded in soil in a short time, and can be directly absorbed and utilized by plants.
对于其他添加剂,一定量的添加剂(如淀粉、变性淀粉或其他纤维素、光敏剂、生物降解剂等。)添加在塑料包装产品的生产过程中,使塑料的稳定性降低,在自然环境中更容易降解。
For other additives, a certain amount of additives (such as starch, modified starch or other cellulose, photosensitizer, biodegradable agent, etc.) Added in the production process of plastic packaging products, the stability of plastic is reduced, and it is easier to degrade in the natural environment.