窦艳丽,刘新春,张欢欢,许东华,管东波,石彤非,姚卫国

• 1:吉林大学材料科学与工程学院教育部汽车材料重点实验室
• 2:中国科学院长春应用化学研究所高分子物理与化学国家重点实验室
• 3:中国科学院大学

摘要(Abstract)：

搪塑模具制备过程中电镀用环氧树脂芯模的固化过程对于搪塑模具的制备至关重要。今采用流变学的的方法,对电镀用环氧树脂芯模的固化过程进行了研究。环氧树脂芯模在固化过程中,双酚A型环氧树脂与多元胺固化剂进行交联反应,固化程度逐渐增大。固化程度先缓慢增加,然后迅速增加,最后缓慢增加接近最大值,芯模完全固化。同时,温度对固化速率影响也很大。温度越高,速率越大;温度越低,速率越小,完全固化所用时间也就越长,则树脂芯模可操作加工时间也就越长。研究建立了电镀用环氧树脂的固化反应动力学方程,得到温度与固化速率的关系,同时获得固化反应的活化能,结果表明电镀用环氧树脂的固化反应动力学符合Kamal自催化动力学模型。

关键词(KeyWords)： 环氧树脂;搪塑;交联固化;流变动力学

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(21274152,51473168,21234007,21174146);; 973国家重点基础研究发展规划项目(2010CB631100);; 吉林省科技厅科技发展计划项目(20120319);; 汽车内饰产品搪塑工艺关键技术研究(2012362)

作者(Author): 窦艳丽,刘新春,张欢欢,许东华,管东波,石彤非,姚卫国

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