玻璃钢/复合材料 ›› 2009, Vol. 209 ›› Issue (4): 49-52.

• 材料研究 • 上一篇    下一篇

苯并环丁烯封端的聚酰亚胺树脂的流变行为研究

  

  1. 上海应用技术学院材料工程系
  • 出版日期:2009-07-28 发布日期:2009-04-25
  • 作者简介:张英强(1976),男,博士,讲师,主要从事高性能特种聚合物、纳米材料和复合材料方面的研究。
  • 基金资助:

    上海市重点学科建设项目(P1502);上海应用技术学院科研启动项目(YT200508)

THE STUDY ON RHEOLOGY BEHAVIORS OF BENZOCYCLOBUTENETERMINATED IMIDE

  • Online:2009-07-28 Published:2009-04-25

摘要:

用旋转流变仪研究了苯并环丁烯封端的聚酰亚胺树脂体系固化过程中的化学流变行为,用动态和静态两种方法分析了其固化过程,发现存在三个固化阶段,用Arrhenius 方程确定了固化前的表观物理粘流活化能为195.9kJ/mol。并用Roller法确定固化反应过程中表观化学粘流活化能和表观固化反应活化能,分别为148.2kJ/mol和161.2 kJ/mol。结果表明,在整个固化成型工艺温度范围内,苯并环丁烯封端的聚酰亚胺树脂的粘度特性符合Roller模型方程,通过该模型可较好地预测该树脂在固化过程中的粘度特性。

关键词: 化学流变, 苯并环丁烯, 聚酰亚胺, 固化反应, 数学模型

Abstract:

The chemorheology behaviors of curing reaction of benzocyclobuteneterminated imide were studied with rheometer.The curing process was investigated by dynamic heating and isothermal methods,and three curing stages were found.Apparent physical activation energy of flow calculated by Arrhenius equation was 195.9kJ/mol.Apparent chemical activation energy of flow and apparent curing reaction activation energy were calculated by Roller equation, respectively.The results show that the viscosity characteristic of resin follows the Roller equation very well, and viscosity characteristic of resin can be predicted by the Roller equation in the whole curing process.

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