中国塑料 ›› 2015, Vol. 29 ›› Issue (8): 77-81 .DOI: 10.19491/j.issn.1001-9278.2015.08.013

• 加工与应用 • 上一篇    下一篇

CPP热封薄膜低温热封层性能研究

廖德金,段宁宁,林渊智,苏羽航,陈美燕   

  1. 福建师范大学福清分校
  • 收稿日期:2015-04-17 修回日期:2015-05-06 出版日期:2015-08-26 发布日期:2015-08-26

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

  • Received:2015-04-17 Revised:2015-05-06 Online:2015-08-26 Published:2015-08-26

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30 μm,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16.44 N/15 mm,初始热封温度可降至105 ℃。

关键词: 聚丙烯, 低温热封薄膜, 热封强度

Abstract: Polypropylene, metallocene polyethylene(mPE), and slip agents were blended forming 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 ℃.

Key words: polypropylene, low-temperature heat-sealing film, heat-sealing streugth

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