聚丙烯包装材料透明改性的研究  

Transparent Modified Polypropylene Packaging Material

作　　者：尹芬[1] 林月城 段继华[1] 倪洋洋[1] 江贵长[1] 

机构地区：[1]天津科技大学,天津300222 [2]江西省坤达科技有限公司,吉安343000

出　　处：《包装工程》2016年第11期27-31,共5页Packaging Engineering

基　　金：天津市大学生创新创业训练计划(20150057028);天津科技大学大学生实验室创新基金(1506A207)

摘　　要：目的以均聚聚丙烯为研究对象,研究具有更好透明度的聚丙烯材料的配方。方法使用直接加入法对各种原材料进行配比,在单螺杆挤出机进行共混熔融挤出造粒,根据测试标准进行制样并测试。结果添加质量分数为0.3%的α成核剂到均聚聚丙烯中时,聚丙烯试样的熔融温度最高,结晶度最大,半结晶时间最短,透光率和拉伸强度最大,冲击强度最小。结论在均聚聚丙烯中添加质量分数为0.3%的α成核剂复配助剂可以制备耐150℃以下的温度,且具有更好透明度的聚丙烯材料。This paper took homopolymer polypropylene as the research object, and researched the formulation of better transparency polypropylene material. A variety of raw materials were mixed with direct addition method, melting extruded in a single screw extruder to granulate for sample preparation. Test criteria were based on sample preparation and testing. When α-nucleating agent was added with a mass fraction of 0.3% to homo polypropylene, the melt temperature of polypropylene sample was the highest, the degree of crystallinity was the maximum, the crystallization half time was the shortest, the light transmittance and tensile strength were the maximum, and the impact strength was the minimum. Addition of 0.3% mass fraction of α-nucleating agent as the compounding additive to homo-polypropylene could lead to preparation of polypropylene material with resistance to temperature below 150 ℃ and better transparency.

关 键 词：均聚聚丙烯 α成核剂 透明性能 

分 类 号：TB484.3[一般工业技术—包装工程]