瓶坯发雾现象分析及对策

瓶级切片在下游注塑吹瓶过程中经常会出现发雾现象,严重影响瓶的外观和下游产量的提升。解释了瓶坯发雾的结晶原理,多方面分析造成瓶坯发雾的原因,并从聚合工艺、固相缩聚工艺、下游吹瓶工艺等方面提出了所采取的对策。

Analysis and countermeasures of preform haze phenomenon

Haze phenomenon often occurs during the downstream injection and blowing process,this greatly impact on the appearance and promotion of downstream productivity.The crystallization principle of preform haze was explained.The reasons for the preform haze was analysed from many aspects.The countermeasures to be taken were put forward from polymerization,solid state polycondensation and downstrem blowing process.