EVA发泡塑料流变性能的实验  

Experiments of the Rheological Characteristics of EVA Foam

作　　者：许建文[1] 刘斌[1] 顾永华[1] 

机构地区：[1]华侨大学机电及自动化学院,福建泉州362021

出　　处：《华侨大学学报（自然科学版）》2010年第6期601-605,共5页Journal of Huaqiao University(Natural Science)

基　　金：福建省自然科学基金资助项目(E0810040);福建省青年创新基金资助项目(2004J033)

摘　　要：结合有交互作用的正交试验,在不同口模温度及转速组合下,测量EVA(聚乙烯-醋酸乙烯共聚物)发泡塑料表观粘度.测量结果表明,转速对EVA发泡塑料表观粘度的影响程度大于温度的影响程度,且温度与转速之间的交互作用对表观粘度的影响程度较小.结合挤出的发泡制品的密度及表面质量,选取优化的工艺参数组合为基准,研究单因素对发泡塑料表观粘度的影响规律.实验结果显示,在转速不变的情况下,随着温度的升高,EVA发泡塑料的表观粘度先减小后增加,最后再减小;在温度不变的情况下,随着转速的增加,表观粘度减小.Combined with orthogonal experiment considering interaction,EVA foam＇s apparent viscosity is measured under different compages of temperature and speed.It can be concluded from the results that the degree of speed＇s effect on apparent viscosity is greater than that of temperature＇s,and that of interaction＇s between temperature and speed is smaller.Combined with foam products＇ density and surface quality after extrusion,the compages of optimum process parameters are selected to investigate the influence of each single factor on foam＇s apparent viscosity.Experimental results have shown that,when speed remains unchanged,with temperature increasing,EVA foam＇s apparent viscosity decreases first,then increases and finally reduces;when temperature remains unchanged,with speed increasing,apparent viscosity reduces.

关 键 词：EVA发泡塑料 流变性能 正交实验 表观粘度 优化 

分 类 号：TQ325.106.6[化学工程—合成树脂塑料工业]