CPP热封薄膜低温热封层性能研究  

Study on Low-temperature Heat-sealing Layer Performance of CPP Heat-sealing Films

作　　者：廖德金[1] 段宁宁[1] 林渊智[1,2] 苏羽航[1] 陈美燕[1] 

机构地区：[1]福建师范大学福清分校海洋与生化工程学院,福建福州350300 [2]福州市包装工程行业技术创新中心,福建福州350300

出　　处：《中国塑料》2015年第8期77-81,共5页China Plastics

基　　金：国家级大学生创新创业训练计划(GCX-2013017);福建省教育厅科技项目(JB12264);福州市科技计划项目2014-PT-92)

摘　　要：筛选不同聚丙烯低温热封材料与适量茂金属聚乙烯(mPE)、滑爽剂共混作为热封层,通过3层共挤流延法研制备了流延聚丙烯(CPP)低温热封薄膜,探讨了聚丙烯低温热封材料、热封温度、薄膜厚度、冷却辊温度等对薄膜热封性能的影响。结果表明,热封层中采用40份TF400、60份SFC-750M作为热封层,薄膜厚度控制为30μm,冷却辊温度为22.6℃条件下,制备薄膜的各项性能均达到指标要求,其中热封强度可达16.44N/15mm,初始热封温度可降至105℃。Polypropylene, metallocene polyethylene（mPE）, and slip agents were blended tormlng a heat sealing film through three-layer co-extruded casting. The effect of polypropylene, heat-sealing temperature, the thickness, and the cooling roll temperature of the film on heat-sealing properties of the film were investigated. When 40 parts of TF400 and 60 parts of SFC-750M were used in the heat-sealing layer, the cooling roll temperature was 22.6 ℃, the heat-sealing strength could reach 16.44 N/15 mm, and the initial heat-sealing temperature could be lowered to 105 ℃.

关 键 词：聚丙烯 低温热封薄膜 热封强度 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]