【摘要】 "喷霜"是指在运输和储存过程中聚碳酸酯注射器针筒表面出现白色雾状斑点或结晶(冰花)的现象."喷霜"的产生不仅影响产品的外观,而且影响针筒的正常使用.通过质谱与核磁共振氢谱分析,确定了"喷霜"的主要化学成分为4-异丙烯基苯酚和2,2-二(4-羟基苯基)丙烷(双酚A).更多还原

【Abstract】 The frosting is a white fog spot or a ice crystal growing on the polycarbonate syringe(PC-syringe) in store and transportation process.The frosting is not only influence on the appearance of syringe,but also influence on its use.In this paper the constituents of the frosting was characterized by MS and 1HNMR.The result showed that the main constituents of the frosting were 4-isopropenylphenol and 2,2-bis(4-hydroxyphenyl)propane(bisphenol A).更多还原