PVC热收缩标签膜温度-收缩率曲线分析研究  

Temperature-shrinkage curve analysis of PVC shrink label film

作　　者：刘兵 于世发 钱鑫 杨涛 

机构地区：[1]宜兴市光辉包装材料有限公司,江苏宜兴214262

出　　处：《橡塑技术与装备》2011年第1期1-4,共4页China Rubber/Plastics Technology and Equipment

摘　　要：本文针对硬质PVC热收缩标签膜进行了热收缩曲线的测定,研究热收缩率随温度的变化趋势。结果发现:不同工艺生产的PVC热收缩膜,其收缩的起始温度以及整个过程的变化趋势基本是一致的,大体可以分为:缓慢变化、快速变化、趋于稳定三个阶段。只是拉伸膜在稳定后的收缩率要明显的高于吹塑工艺生产的膜。Determined the shrinkage curve of hardened PVC shrink label film, to study trends of shrinkage with temperature. The results shown that： PVC shrink label films produced by different processing technology have basically the same initial temperature of shrinkage and same trend of whole process, which is divided into three stages： slow change, rapid change, stable. Stretch film has a significantly higher shrinkage rate after stable than films produced by blow process.

关 键 词：PVC热收缩印刷膜 收缩率 玻璃化转变温度 温度 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]