PVDC药包乳液的制备及其性能  

Preparation and performance of PVDC emulsion for medicine package

作　　者：吴志刚[1] 尹作柱 吴宇鹏[1] 熊雄 王许飞 黄俊 WU Zhigang;YIN Zuozhu;WU Yupeng;XIONG Xiong;WANG Xufei;HUANG Jun(Electrochemical Plant of Zhejiang Juhua Co.,Ltd.,Quzhou 324004,China;Zhejiang Quzhou Jusu Chemical Industry Co.,Ltd.,Quzhou 324004,China)

机构地区：[1]浙江巨化股份有限公司电化厂,浙江衢州324004 [2]浙江衢州巨塑化工有限公司,浙江衢州324004

出　　处：《氯碱工业》2024年第12期11-14,18,共5页Chlor-Alkali Industry

摘　　要：介绍了一种PVDC药包乳液的制备方法,筛选PVDC药包乳液较优的配方及工艺。采用控制变量法,研究了共聚单体的种类和含量对PVC/PVDC硬片韧性和阻隔性能的影响,引发剂含量对PVC/PVDC硬片韧性和阻隔性能的影响,乳化剂含量对乳液粒径、黏度及PVC/PVDC硬片氧气透过率的影响。结果表明:当VDC质量分数为89%~91%时,VDC/MA体系能够实现PVC/PVDC硬片阻隔性和破损率的平衡;在引发剂能够将单体完全反应的情况下,最好使用较少的引发剂,以保障硬片的破损率;乳化剂质量分数为1.8%~2.0%时,能够兼顾乳液较低的黏度和PVC/PVDC硬片较好的阻氧性能。A preparation method of PVDC emulsion for medicine package was introduced,and the optimal formulation and process of the PVDC emulsion were screened.The followings were studied using the method of controlling variables:The effect of the type and content of comonomers on the toughness and barrier properties of PVC/PVDC hard sheets,the effect of initiator content on the toughness and barrier properties of PVC/PVDC hard sheets,and the effect of emulsifier content on particle size and viscosity of emulsion and on oxygen permeability of PVC/PVDC hard sheets.The result showed:when the VDC mass fraction was between 89%and 91%,the VDC/MA system could achieve a balance between the barrier properties and damage rate of PVC/PVDC hard sheets;on the premise that the monomer react completely,it was best to use fewer initiators to ensure the breakage rate of the hard sheet;when the mass fraction of emulsifier is 1.8%-2.0%,the lower viscosity of emulsion and the better oxygen resistance of PVC/PVDC hard sheet could be balanced.

关 键 词：PVDC乳液 药品包装 PVC/PVDC硬片 阻隔性 破损率 黏度 粒径 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]