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可降解塑料颗粒的成本!

可降解塑料颗粒的成本!

来源网址:https://www.swjjkl.com/ 2021-10-20 11:06:02    

在商场经济环境下,抛开成本谈任何问题都没什么实际意义。目前的可降解塑料正是处于一个本钱不占优势的尴尬地步。谈这个问题之前,首先有必要解释一下可降解塑料和传统塑料之间的区别。生活中常见的塑料主要有五大种类,即聚乙烯(PE)、聚丙烯(PP)、聚氯乙烯(PVC)、聚苯乙烯(PS)及丙烯腈─丁二烯─苯乙烯共聚合物(ABS)五大类塑料。这五种塑料的原料都是石油,属于不可降解塑料。而咱们一般说的无污染的环保材料。

In the market economic environment, it is of no practical significance to talk about any problem regardless of cost. At present, degradable plastics are in an embarrassing situation where the cost is not dominant. Before discussing this issue, it is necessary to explain the difference between degradable plastics and traditional plastics. There are five kinds of plastics commonly used in life, namely polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS) and acrylonitrile butadiene styrene copolymer (ABS). The raw materials of these five plastics are petroleum, which belongs to non degradable plastics. And what we generally call pollution-free environmental protection materials.
一般指“生物降解塑料”,这是一种悉数或部分来源于生物质的塑料。生物质是生物来源的原料,不包括嵌入地质结构或石化的原料。可以被微生物(细菌或真菌)分解为水、自然产生的气体如二氧化碳(CO2)和甲烷(CH4)以及生物量(如微生物数量的增加)的塑料。当然,生物降解性很大程度上取决于环境条件:温度、微生物、氧气和水的存在。
Generally refers to "biodegradable plastic", which is a kind of plastic derived in whole or in part from biomass. Biomass is raw materials from biological sources, excluding raw materials embedded in geological structures or fossilization. Plastics that can be decomposed by microorganisms (bacteria or fungi) into water, naturally occurring gases such as carbon dioxide (CO2) and methane (CH4), and biomass (such as the increase in the number of microorganisms). Of course, biodegradability depends largely on environmental conditions: temperature, microorganisms, the presence of oxygen and water.