中国塑料2025，Vol.39Issue(3)：41-47,7.DOI:10.19491/j.issn.1001-9278.2025.03.008
PE/PP/微米SiO2消光热封膜的研制及其性能研究
Development and performance of PE/PP/micron SiO2 matting and heat-sealing film
摘要
Abstract
The composite structure of a three-layered matting and heat-sealing film was designed by selecting suitable poly-ethylene(PE)and polypropylene(PP)as visual layer materials and adding micron SiO2 into the core layer to improve the haze of the film.The film was prepared by using a three-layer co-extrusion casting method,and its properties were in-vestigated.The results indicated that PE-HD and copolymerization-type PP could be combined to form the best matting material.With an increase in the PE-HD content in the visual layer,the PE-HD/PP hybrid system obtained an improve-ment in the impact strength,storage modulus,and loss modulus,indicating a reinforcing and toughening effect on the film.This also,accelerated the crystallization rate of the PE-HD/PP hybrid system and promoted the haze formation of the film.The film showed a haze of 80%and a gloss of 7.8%at a PE-HD content of 40 wt%in the visual layer along with an optimal matting effect.The film also presented the highest tensile strength of 29.5 MPa and the highest elonga-tion at break of 64%at a micron SiO2 content of 3 wt%in the core layer.The film obtained a light transmittance of 58.8%,and its haze increased to 82.3%.关键词
消光膜/热封/微米二氧化硅/雾度/3层流延共挤Key words
matting film/heat sealing/micron silicon dioxide/haze/three-layer cast co-extrusion分类
化学化工引用本文复制引用
苏羽航,林渊智,毛健全,王永祥,刘向,余立,柯俊沐,陈忆诗..PE/PP/微米SiO2消光热封膜的研制及其性能研究[J].中国塑料,2025,39(3):41-47,7.基金项目
福建省科技厅工业引导性项目(2020H0028) （2020H0028）
福州市科技计划项目(2020-PT-150) （2020-PT-150）
福建省科技厅高校产学合作项目(2019H6026) （2019H6026）
