中国塑料 ›› 2014, Vol. 28 ›› Issue (12): 60-66.DOI: 10.19491/j.issn.1001-9278.2014.12.013

• 加工与应用 • 上一篇    下一篇

氢化双酚A型环氧树脂的固化性能研究

吴一蔚 郑亚萍 李沛沛 屈萍 杨睿璐 李静   

  1. 西北工业大学理学院应用化学系
  • 收稿日期:2014-06-23 修回日期:2014-07-18 出版日期:2014-12-26 发布日期:2014-12-26

Curing properties of hydrogenated bisphenolA tape epoxy resin

  • Received:2014-06-23 Revised:2014-07-18 Online:2014-12-26 Published:2014-12-26

摘要: 本文研究了聚醚胺(D-230)、聚醚胺(T-403)、甲基四氢苯酐(MeTHPA)3种固化剂与氢化双酚A型环氧树脂的固化反应性能,针对不同体系的反应活性和固化反应动力学凝胶时间、粘接性能和冲击断口的表面形貌进行了研究。结果表明:随着温度的升高,三种体系的凝胶时间均显著下降,其中MeTHPA体系的凝胶时间最短;T-403体系在室温下的剪切强度最大,达到30.059MPa;D-230体系的冲击韧性较高,达到51.279kJ/m2;用这3种固化剂进行固化反应的表观活化能分别为56.55、63.99、67.60kJ/mol,其反应级数分别为0.865、0.902、0.998。

Abstract: The curing reactions of hydrogenated bisphenol A type epoxy resin with three different kinds of curing agents, such as polyether amine (D-230, T-403) and methyl tetrahydrophthalic anhydride (MeTHPA) were researched in this paper. The curing reaction kinetics, the apparent activation energy, the gel time, the shear strength and the surface morphology of the impact toughness of composites had been extensively characterized by various analytical techniques. As a result, with the temperature increasing, the gel time of the three adhesive systems has a noticeable decrease and the gel time of MeTHPA epoxy adhesive system was the shortest. The shear strength of T-403 epoxy adhesive system reached up to 30.059MPa. However, the impact toughness of D-230 epoxy composite was the best. The apparent activation energy of those three system were 56.55kJ/mol, 63.99kJ/mol and 67.60kJ/mol, respectively. The reaction order were 0.865, 0.902 and 0.998, respectively.

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