回收料对聚乙烯管材专用料及制品性能的影响研究  

Study on Effect of Recycled Materials on Properties of Polyethylene Raw Material Specially Used for Pipes and Its Products

作　　者：卢晓英[1] 王宇杰[1] 徐春燕[1] 蔡玉东 朱光宇 孔霏 杨晓彦[1] 吕畅[2] 王艳芳[1] 黄强[1] 于建红 LU Xiaoying;WANG Yujie;XU Chunyan;CAI Yudong;ZHU Guangyu;KONG Fei;YANG Xiaoyan;LV Chang;WANG Yanfang;HUANG Qiang;YU Jianhong(Petrochina Petrochemical Research Institute, Beijing 102200, China;School of Material and Mechanical Engineering, Beijing Technology and Business University, Beijing 100048. China;Petro China Jinlin Petrochemical Company, Jilin 132021, China)

机构地区：[1]中国石油天然气股份有限公司石油化工研究院,北京102200 [2]北京工商大学材料与机械工程学院,北京100048 [3]吉林石化分公司,吉林吉林132021

出　　处：《中国塑料》2019年第8期89-94,共6页China Plastics

摘　　要：研究了聚乙烯管材新料和回收料或再生料中物性差异及回收料对管材制品性能的影响;开展了管材新料与典型回收料不同比例掺混试验,系统研究了掺混料的力学性能、抗氧化性能和流变性能。结果表明,聚乙烯管材或原料中灰分、熔体流动速率、氧化诱导时间和金属元素含量的测定可以有效将再生料及其制品与管材新料及其制品区分开来;铁和钙元素含量的测定可以有效鉴定出管材原料及其制品中是否掺混有管材再生料或回收料;本项目研究成果有望应用于聚烯烃塑料管道标准的制修订,对规范塑料管道行业健康发展发挥重要作用。In this paper we investigated the differences of physical properties between the virgin and recycled polyethylene raw material specially used for pipe, and the effect of recycled PE on the properties of pipes was also studied. The results indicated that melt flow index, ash content, oxidation induction time and metal element content could be considered as effective indicators for identifying the virgin/recycled PE materials for pipes. Moreover, a mixing experiment was performed to prepare the compounds with different contents of typical recycled PE materials. The mechanical properties, antioxidant performance, metal contents and rheological behaviors of the compounds were evaluated intensively. The investigation showed that the presence of recycled PE material in the pipes or raw materials could be effectively distinguished by detecting the content of iron and calcium. The research results obtained from this work can be used for the revision of the standard specification for polyolefin plastic pipeline and will also make a contribution to the development of plastic pipeline industry.

关 键 词：金属元素 回收料 聚乙烯管材 静液压测试 耐慢速开裂增长 

分 类 号：TQ325.1[化学工程—合成树脂塑料工业]