塑料降解方法有哪几种形式?

塑料降解方法有哪几种形式?

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    塑料降解方法,目前已知的形式可分为生物降解塑料、光降解塑料和环境降解塑料。  Atpresent,theknowndegradationmethodsofplasticscanbedividedintobiodegradableplastics,photodegradableplasticsandenvironmentaldegradationplastics.

    (1)生物降解塑料是指在自然环境中,细菌、霉菌(真菌)、藻类等微生物条件或影响下降解的塑料。
 (1)Biodegradableplasticreferstotheplasticthatisdegradedundertheconditionorinfluenceofbacteria,mould(fungus),algaeandothermicroorganismsinthenaturalenvironment.
    (2)光降解塑料是指在自然环境中阳光作用下降解的塑料。
    (2)Photodegradableplasticreferstotheplasticdegradedundertheactionofsunlightinthenaturalenvironment.
    (三)环境可降解塑料是指暴露在自然环境中的塑料,在光、热、水、氧、污染物、微生物、昆虫、风、沙、雨和机械力的作用下降解的塑料。
    (3)
一次性玉米淀粉餐具Environmentaldegradableplasticreferstotheplasticexposedtothenaturalenvironment,whichisdegradedbylight,heat,water,oxygen,pollutants,microorganisms,insects,wind,sand,rainandmechanicalforce.
    (4)可降解塑料这种可降解塑料具有水溶性和生物降解性,如聚乙烯醇、聚乙烯醇/淀粉可降解塑料等   (4)Thiskindofdegradableplastichaswatersolubilityandbiodegradability,suchaspolyvinylalcohol,polyvinylalcohol/starchdegradableplasticandsoon.
    (5)光降解塑料这种可降解塑料是指具有易被光降解基团的聚合物树脂。如乙烯/一氧化碳共聚物(E/CO)、二氧化碳共聚物(也可生物降解)或PE/PP通用树脂与光敏剂等。
 (5)Photodegradableplasticthiskindofdegradableplasticisakindofpolymerresinwithphotodegradablegroup.Suchasethylene/carbonmonoxidecopolymer(E/CO),carbondioxidecopolymer(alsobiodegradable)orPE/PPgeneralresinandphotosensitizer.
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