微结构塑件注射成型试验研究与缺陷分析  

Experiment Research and Defects Analysis of Injection Molding for Microstructure Plastic Part

作　　者：刘莹[1] 宋满仓[1] 王敏杰[1] 张传赞[1] 刘军山[1] 刘冲[1] 

机构地区：[1]大连理工大学精密与特种加工教育部重点实验室,辽宁大连116024

出　　处：《高分子材料科学与工程》2010年第5期104-107,共4页Polymer Materials Science & Engineering

基　　金："十一五"国家科技支撑计划重点项目(2006BAF04B13)

摘　　要：以具有微结构的塑件——微流控芯片为研究对象,利用单因素试验方法研究注射工艺参数对微结构复制不完全和表面缩痕这两种主要成型缺陷的影响并加以分析。结果表明,注射速度和模具温度是影响微结构复制不完全的主要因素,注射压力起次要作用,保压压力影响不明显;影响芯片表面缩痕的主要因素是模具温度和保压压力;保压时间对微结构填充度的影响很小,但却是芯片整体翘曲变形的主要原因。With the micro-structure of the plastic part（microfluidic chip） as an object of study,using the single-factor test method,the influence of different process parameters on the incomplete duplication of microstructure and sink mark for microstructure plastic parts was discussed. The results show that injection rate and mold temperature are the principal factors in the incomplete duplication,injection pressure is the secondary factor and holding pressure is inapparent. Mold temperature and holding pressure are two main influence factors on sink mark. Holding time has a negligible effect on the incomplete duplication,but it is the main reason for the warpage deformation.

关 键 词：微流控芯片 微结构塑件 复制 缩痕 成型缺陷 

分 类 号：TQ320.662[化学工程—合成树脂塑料工业]