PVDC涂膜热稳定性影响因素的研究
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摘要
PVDC作为一种高阻隔材料已经广泛应用于食品包装领域,阻隔性及热稳定性是其比较重要的技术指标。采用控制变量法研究了PVDC乳液聚合过程中偏氯乙烯含量、聚合温度及引发剂用量对PVDC涂膜的热稳定性的影响,为食品用PVDC涂布乳液的生产提供技术支持。
As a kind of high barrier material,PVDC was widely used in the field of food packaging.Barrier and thermal stability of PVDC were relatively important technical indicators. The influence of vinylidene chloride content,polymerization temperature and initiator dosage on the thermal stability of PVDC coating was studied by means of controlled variable method in the process of PVDC emulsion polymerization. The study provided technical support for the production of PVDC coating emulsion for food.
As a kind of high barrier material,PVDC was widely used in the field of food packaging.Barrier and thermal stability of PVDC were relatively important technical indicators. The influence of vinylidene chloride content,polymerization temperature and initiator dosage on the thermal stability of PVDC coating was studied by means of controlled variable method in the process of PVDC emulsion polymerization. The study provided technical support for the production of PVDC coating emulsion for food.
引文
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[2]刘伟,李文阳,寇继云.果蔬缓冲包装材料现状及发展趋势[J].劳动保障世界:理论版,2013(16):110.
[3]周祥兴.高阻隔性薄膜的生产与性能[J].中国包装工业,2001(8):29-36.
[4]张国锋,肖娜. PVDC树脂发展现状及趋势[J].广州化工,2011,39(24):5-6.
[5]包永忠,谢建武,黄志明.偏氯乙烯类聚合物的合成和性能[J].聚氯乙烯,2009,37(11):4-9.
[6]韦丽明.浅谈PVDC涂布包装薄膜、片材在药品包装上的应用[J].中国包装,2000(6):81-82.
[7]Kodani T,Sakai H,Okabe T,et al. Effect of vinylidene chloride content on film‐formation property of vinylidene chloride-methyl acrylate copolymer latex[J]. Journal of Applied Polymer Science,2015,69(3):565-572.
[8]贾红兵.高阻隔性材料——偏氯乙烯共聚胶乳的研究[D].浙江大学,1990.
[9]Xu X,Ding Y,Qian Z,et al. Degradation of poly(ethylene terephthalate)/clay nanocomposites during melt extrusion:Effect of clay catalysis and chain extension[J]. Polymer Degradation&Stability,2009,94(1):113-123.
[10] Yagi Y,Fujino K. Vinylidene chloride-based copolymer latexes with good gas and moisture impermeability and yellow resistance:日本11035736[P]. 1999-02-09.
[11]潘祖仁.高分子化学[M].北京:化学工业出版社,2011:123-145.
[12]曹同玉,刘庆普,胡金生.聚合物乳液合成原理性能及应用[M].北京:化学工业出版社,2007:174-176.