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生物降解塑料与一次性餐具一样吗?

生物降解塑料与一次性餐具一样吗?

来源网址:https://www.swjjkl.com/ 2021-11-02 20:56:43    

塑料是一种生成的由高分子化学产品,绝大多数塑料是以不能再造的原油为原材料,由聚醚多元醇和多元酸缩聚反应而成。有别于其它垃圾,自然环境中的分解者微生物菌种不可以消化吸收可降解塑料中联接单个的离子键,因而没法将其再次溶解为单个方式。也就是说,塑料一旦生成,就再无“退路”。

Plastic is a kind of polymer chemical product. Most plastics are made of unrenewable crude oil and polycondensation of polyether polyols and polyacid. Different from other garbage, the decomposer microbial strains in the natural environment can not digest and absorb the single ion bond connected in the degradable plastic, so it is impossible to dissolve it into a single way again. In other words, once plastic is generated, there is no "retreat".
解决“白色垃圾”,除开要塑造自然环境观念,降低应用一次性塑料制品,另一个关键的方式便是用生物降解塑料替代一般塑料。
To solve the problem of "white waste", in addition to shaping the concept of natural environment and reducing the application of disposable plastic products, another key way is to replace general plastics with biodegradable plastics.
生物降解塑料根据提升挑选生产制造原材料和加工工艺,在数日或好多个月的日晒淋雨及微生物菌种的一同功效下,能逐渐转化成残片,所有溶解。那样才有利于环境保护。
Biodegradable plastics are selected according to the production and manufacturing raw materials and processing technology. Under the combined effect of sun and rain for several days or months and microbial strains, they can be gradually transformed into fragments, and finally all dissolve. That's good for environmental protection.
可降解材料一般可分成光可降解塑料、生物降解塑料、光/生物降解塑料和水可降解塑料等四大类。
Degradable materials can be generally divided into four categories: Photo degradable plastics, biodegradable plastics, photo / biodegradable plastics and water degradable plastics.
生物降解颗粒
光可降解塑料是将引发剂掺在塑料中,在自然光直射功效下,塑料慢慢溶解。但其缺陷是,溶解時间遭受自然光和气侯自然环境的危害,因而控制不了。
Photodegradable plastics are made by adding initiators into plastics. Under the effect of direct natural light, the plastics dissolve slowly. However, its defect is that the dissolution time is damaged by natural light and climate and natural environment, so it can not be controlled.
生物降解塑料就是指能被大自然中存有的微生物菌种,如病菌、黄曲霉菌和藻类植物等,在一定标准下溶解为低分子结构化学物质的塑料。该类塑料存储运送便捷,运用范畴比较广泛。
Biodegradable plastics refer to plastics that can be dissolved into low molecular structure chemicals under certain standards by microbial strains existing in nature, such as bacteria, Aspergillus flavus and algae. This kind of plastic is easy to store and transport, and has a wide range of applications.
光/生物降解塑料,便是结合光可降解塑料和生物降解塑料双向特性的塑料。
Light / biodegradable plastics are plastics that combine the bidirectional characteristics of light degradable plastics and biodegradable plastics.
生物降解塑料
Biodegradable plastics
水可降解塑料是一种在水中能够融解的塑料,缘故是在其中加上了吸水能力化学物质。伴随着当代生物科技的发展趋势,生物降解塑料早已变成 科学研究开发设计的新趋势。
Water degradable plastic is a kind of plastic that can melt in water because of the addition of water absorbing chemicals. With the development trend of contemporary biotechnology, biodegradable plastics have long become a new trend of scientific research, development and design.
现阶段,在我国产品研发的生物降解塑料主要是微生物聚脂如聚乳酸(PLA)、聚甲基油酸酯(PHA)、二氧化碳预聚物(PPC)等。聚乳酸(PLA)是由绿色植物糖份获取的丙交酯单个汇聚而成,在工业生产沤肥下可彻底溶解为水和二氧化碳。聚甲基油酸酯(PHA)是由微生物菌种根据各种各样氮源发醇而生成的不一样构造的脂环族共聚物聚脂,不但可以用以包装制品、农用地膜等,还能普遍的运用于药物、护肤品、宠物饲料等行业。
At present, biodegradable plastics developed in China are mainly microbial polyester, such as polylactic acid (PLA), polymethyloleate (PHA), carbon dioxide prepolymer (PPC), etc. Polylactic acid (PLA) is a single aggregation of lactide obtained from green plant sugar. It can be completely dissolved into water and carbon dioxide under industrial retting. Polymethyloleate (PHA) is an alicyclic copolymer polyester with different structure, which is produced by microbial strains according to various nitrogen sources. It can not only be used for packaging products and agricultural mulch, but also be widely used in medicine, skin care products, pet feed and other industries.