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生物降解材料有多少种你知道吗?

生物降解材料有多少种你知道吗?

来源网址:http://www.rsoau.com 2019-02-22 12:02:26    

生物降解塑料是指一类由自然界存在的微生物如细菌、霉菌(真菌)和藻类的效果而引起降解的塑料。理想的生物降解塑料是一种具有优良的运用性能、抛弃后可被 环境微生物彻底分解、终究被无机化而成为自然界中碳素循环的一个组成部分的高分子资料。“纸”是一种典型的生物降解资料,而“组成塑料”则是典型的高分子 资料。因此,生物降解塑料是兼有“纸”和“组成塑料”这两种资料性质的高分子资料。生物降解塑料又可分为彻底生物降解塑料和破坏性生物降解塑料两种。

Biodegradable plastics refer to a kind of plastic which is degraded by the effect of natural microorganisms such as bacteria, fungi and algae. The ideal biodegradable plastic is a kind of polymer material with excellent performance, which can be completely decomposed by environmental microorganisms after abandonment and eventually become an integral part of the carbon cycle in nature. Paper is a typical biodegradable material, while Composition Plastics is a typical macromolecule material. Therefore, biodegradable plastics are macromolecule materials with both "paper" and "constituent plastics". Biodegradable plastics can also be divided into two types: completely biodegradable plastics and destructive biodegradable plastics.
破坏性生物降解塑料:破坏性生物降解塑料当前主要包含淀粉改性(或填充)聚乙烯PE、聚丙烯PP、聚氯乙烯PVC、聚苯乙烯PS等。
Destructive biodegradable plastics: Destructive biodegradable plastics currently mainly include starch modified (or filled) polyethylene PE, polypropylene PP, polyvinyl chloride PVC, polystyrene PS and so on.
彻底生物降解塑料:彻底生物降解塑料主要是由天然高分子(如淀粉、纤维素、甲壳质)或农副产品经微生物发酵或组成具有生物降解性的高分子制得,如热塑性淀粉塑料、脂肪族聚酯、聚乳酸、淀粉/聚乙烯醇等均属这类塑料。
Thoroughly biodegradable plastics: Thoroughly biodegradable plastics are mainly made from natural macromolecule (such as starch, cellulose, chitin) or agricultural by-products fermented by microorganisms or composed of biodegradable macromolecule, such as thermoplastic starch plastics, aliphatic polyesters, polylactic acid, starch/polyvinyl alcohol and so on.
国内外生物降解塑料现状与发展趋势 从原资料上分类,生物降解塑料至少有以下几种: 1.聚己内酯(PCL)
Current situation and development trend of biodegradable plastics at home and abroad are classified according to the original data. There are at least the following kinds of biodegradable plastics: 1. Polycaprolactone (PCL)
这种塑料具有良好的生物降解性,熔点是62℃。分解它的微生物广泛地分布在喜气或厌气条件下。作为可生物降解资料可把它与淀粉、纤维素类的资料混合在一起,或与乳酸聚合运用。
The plastic has good biodegradability and melting point is 62 C. The microorganisms that decompose it are widely distributed under aerobic or anaerobic conditions. As a biodegradable material, it can be mixed with starch and cellulose or used in lactic acid polymerization.
2.聚丁二酸丁二醇酯(PBS)及其共聚物
2. Polybutylene succinate (PBS) and its copolymers
以PBS(熔点为114℃)为根底资料制造各种高分子量聚酯的技能现已到达工业化生产水平。日本三菱化学和昭和高分子公司现已开始工业化生产,规划在千吨左右。
The technology of manufacturing various high molecular weight polyesters based on PBS (melting point 114 C) has reached the level of industrial production. Mitsubishi Chemicals and Showa Polymer Co., Ltd. of Japan has started industrialized production with a plan of about 1000 tons.
中科院理化研讨所也在进行聚丁二酸丁二醇酯共聚酯的组成研讨。现在中科院理化研讨所正在筹建年产万吨的PBS生产线、广东金发公司建成了年产1000吨规划的生产线等。
The Institute of Physics and Chemistry of Chinese Academy of Sciences is also discussing the composition of polybutylene succinate copolyester. At present, the Institute of Physics and Chemistry of the Chinese Academy of Sciences is preparing to build a production line of PBS with an annual output of 10,000 tons, and the Guangdong Golden Hair Company has built a planned production line with an annual output of 1,000 tons.
3.聚乳酸(PLA)
3. Polylactic acid (PLA)
美国Natureworks公司在完善聚乳酸生产工艺方面做了积极有效的工作,开发了将玉米中的葡萄糖发酵制取聚乳酸,年生产能力已达1.4万吨。日本UNITIKA公司,研发和生产了许多种制品,其中帆布、托盘、餐具等在日本爱知世博会被广泛运用。
Natureworks Corporation of the United States has done active and effective work in improving the production process of polylactic acid. It has developed the production of polylactic acid from corn by fermentation of glucose. Its annual production capacity has reached 14,000 tons. UNITIKA company in Japan has developed and produced many kinds of products, including canvas, trays, tableware and so on, which are widely used in Aichi Expo in Japan.
以上信息是我们生物降解颗粒整理发布希望对大家有所帮助我们的网站是:http://www.rsoau.com
The above information is our biodegradable particle sorting release hope to help you with our website is: http://www.rsoau.com!  

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