EVA塑料发泡倍率的影响规律实验  

Experiments of Effect Rule of EVA Plastic′s Expansion Ratio

作　　者：许建文[1] 顾永华[1] 刘斌[1] 

机构地区：[1]华侨大学模具技术研究中心,福建泉州362021

出　　处：《华侨大学学报（自然科学版）》2011年第1期5-9,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：采用田口实验设计方法,选取模具温度、模压时间、注射压力和模压压力进行正交实验,分析工艺参数对EVA(乙烯-醋酸乙烯酯共聚物)发泡倍率的影响.结果表明,模具温度对发泡倍率的影响较为显著,模压时间次之,注射压力与模压压力的影响较小.随着模具温度的升高,发泡倍率逐渐增大,最终趋于稳定值,随着模压时间的增加,发泡倍率也逐渐最大并最终趋于一个稳定值.此外,尺寸大的薄板,其发泡倍率大;随着发泡制品边长的增加,发泡倍率也有一定程度的增加.Taguchi method of experimental design is adopted,and molding temperature,molding time,injection pressure as well as molding pressure are selected for orthogonal experimental,moreover effects of various process parameters on EVA plastic′s expansion ratio are analyzed.It can be concluded from the results that,effect of molding temperature on expansion ratio is much more obvious,that of molding time is followed,and that of injection pressure and molding pressure are smaller;with molding temperature increasing,expansion ratio increases gradually and finally tends towards stabilization;with molding time increasing,expansion ratio also increases gradually and finally tends towards stabilization.In addition,a foam product sheet with a large shape has a large expansion ratio,and with the side length of the product increasing,the expansion ratio will increase to some extent.

关 键 词：EVA塑料 发泡倍率 田口实验设计方法 工艺参数 

分 类 号：TQ328.063[化学工程—合成树脂塑料工业]