低密度聚乙烯1810D专用树脂的开发  

Develepment of speciality resin LDPE 1810D

作　　者：赵爱利[1] 刘兴旺[1] 赵振兴[1] 杨令衡[1] 

机构地区：[1]中国石油天然气股份有限公司兰州石化分公司聚烯烃事业部,甘肃兰州730060

出　　处：《合成树脂及塑料》2009年第3期52-55,共4页China Synthetic Resin and Plastics

摘　　要：通过控制相对分子质量调节剂加入量、反应压力和温度,优化过氧化物配方及脉冲阀参数,加强原料及挤压机工艺参数的监控,成功生产了低密度聚乙烯1810D产品。测试结果表明:1810D相对分子质量分布较宽,最大值为6.70;产品拉伸屈服应力最高可达10.3 MPa;支化度最高为16.8;结晶度较低,约为48%。A grade of low density polyethylene, 1810D, was produced successfully by controlling amount of the relative molecular mass modifier, pressure, temperature and optimizing recipe of peroxide, parameter of pulse valve and monitoring operational condition of raw material and extruder. The test results show that the resin has a wide relative molecular mass distribution with 6.70 as its maximum, tensile strength at yield and the degree of branching up to 10.3 MPa and 16.8, respectively. The degree of crystallinity is at a low level, about 48%.

关 键 词：低密度聚乙烯 熔体流动速率 密度 相对分子质量及其分布 质量控制 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]