纳米硫酸钡改性高密度聚乙烯网箱框架材料的耐老化性能和热性能  

Thermal and aging resistance properties of cage frame materials——high density polyethylene/barium sulfate nanocomposites

作　　者：陈晓蕾[1] 石建高[1] 刘永利[1] 王磊[1] 王鲁民[1] 

机构地区：[1]中国水产科学研究院东海水产研究所,农业部海洋与河口渔业资源及生态重点开放实验室,上海200090

出　　处：《海洋渔业》2012年第1期96-101,共6页Marine Fisheries

基　　金：农业部渔业装备与工程重点开放实验室开放基金(2010A01);浙江省重大科技专项重点农业项目(2011C12039);中央级公益性科研院所基本科研业务费专项资金(中国水产科学研究院东海水产研究所)资助项目(2011M02)

摘　　要：采用熔融共混的方法制备了高密度聚乙烯(HDPE)/硫酸钡(BaSO4)纳米改性网箱框架材料。扫描电镜照片显示纳米硫酸钡(nano-BaSO4)在HDPE中分散良好,且nano-BaSO4含量≤1%时,纳米粒子与基体界面结合优良。热重测试和热老化试验结果显示,本文中的热老化试验有助于提高HDPE的结晶度,使材料的力学性能提高;一定量nano-BaSO4的加入,有利于提高HDPE的耐老化性能、热性能和热氧性能。The cage frame materials with excellent properties were prepared by melt blending barium sulfate nanoparticles （nano-BaSO4） and high density polyethylene （HDPE）. The scanning electron microscope （SEM） micrographs confirmed that nano-BaSO4 were well dispersed in HDPE matrix, and the interface bonding was very good when the content of nano-BaSO4 was ≤ 1%. The results of thermogravimetric analysis and heating aging test showed that increasing the erystallinity of HDPE lead to enhancement of the mechanical property of HDPE in the experimental conditions of heating and aging tests ; adding the nano-BaSO4 helped to improve the thermal stability, thermal oxidative stability and aging resistance property of HDPE.

关 键 词：高密度聚乙烯 纳米硫酸钡 耐老化性能 热性能 

分 类 号：TQ325.1[化学工程—合成树脂塑料工业]