生活及农业固废中废塑料分析鉴别及应用研究  

Analysis,identification and application of waste plastics recycled from domestic and agricultural solid wastes

作　　者：韩丹 黄云[2] 程利萍 刘波 HAN Dan;HUANG Yun;CHENG Liping;LIU Bo(China Tianying Inc.,Nantong 226600,China;Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China;Jiangsu Tianying Environmental Protection Energy Equipment Co.,Ltd.,Shanghai Branch,Shanghai 201315,China)

机构地区：[1]中国天楹股份有限公司,江苏南通226600 [2]中国科学院过程工程研究所,北京100190 [3]江苏天楹环保能源成套设备有限公司上海分公司,上海201315

出　　处：《再生资源与循环经济》2024年第6期28-32,共5页Recyclable Resources and Circular Economy

摘　　要：对来源于生活和农业固废中的4种废塑料进行了分析鉴别,并对其中一种应用于低密度聚乙烯(LDPE)/线性低密度聚乙烯(LLDPE)软包装薄膜进行了研究,研究了废塑料添加量对薄膜力学性能的影响,结果表明:回收的废旧日化瓶和牛奶瓶均为单一高密度聚乙烯(HDPE)材质,废旧缠绕膜为LLDPE/LDPE共混物,废旧农膜为LDPE/LLDPE/乙烯-醋酸乙烯酯共聚物(EVA)共混物,其中废旧牛奶瓶可作为高性能HDPE材料回用,将其与茂金属聚乙烯(mPE)同时用于LDPE/LLDPE薄膜中时可同时提高薄膜抗拉和抗冲击性能。In this paper,four kinds of waste plastics,which recycled from domestic and agricultural solid wastes,were analyzed and identified.One of which was selected for preparing low density polyethylene(LDPE)/linear low density polyethylene(LLDPE)flexible packaging film.The effect of the amount of waste plastic on the tensile and impact properties of the film was studied.The results showed that:The waste daily chemical bottles and milk bottles were both pure high density polyethylene(HDPE),the waste wrap film was the binary blend of LDPE and LLDPE,and the waste agricultural film was the ternary blend of LDPE,LLDPE and ethylene vinyl acetate copolymer(EVA).Among which,the waste milk bottles could be reused as high performance HDPE materials.When it was used together with metallocene polyethylene(mPE)in the LDPE/LLDPE film,the tensile and impact properties of the film could be improved.

关 键 词：生活及农业固废 废塑料 鉴别 应用 软包装薄膜 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业] X783.2[环境科学与工程—环境工程]