| 环氧改性氰酸酯树脂固化动力学的研究 |
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| 引用本文： | 王凌侃,陆一尘,陈麒,倪礼忠.环氧改性氰酸酯树脂固化动力学的研究[J].热固性树脂,2009,24(1). |
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| 作者姓名： | 王凌侃 陆一尘 陈麒 倪礼忠 |
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| 作者单位： | 华东理工大学材料科学与工程学院,上海,200237 |
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| 摘 要： | 采用示差扫描量热法(DSC)对缩水甘油醚类环氧树脂(E-51)与脂环族环氧树脂(R-122)共同改性的双酚A型氰酸酯(BADCy)树脂的固化反应历程进行了研究。由Kisserger方程求得共聚体系固化反应的表观活化能为60.5 kJ/mol,根据Crane理论求得固化反应级数为0.89,接近于1级反应。该体系起始固化温度为132.1℃,峰顶固化温度为168.7℃,终止固化温度为246.0℃。研究表明,环氧树脂可促进BADCy的固化,改性体系可在177℃以下实现较完全固化。
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| 关 键 词： | 双酚A型氰酸酯树脂 环氧树脂 固化反应 动力学参数 |
Study on curing kinetics of cyanate ester resin modified with epoxy resin |
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| WANG Ling-kan,LU Yi-chen,CHEN Qi,NI Li-zhong.Study on curing kinetics of cyanate ester resin modified with epoxy resin[J].Thermosetting Resin,2009,24(1). |
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| Authors: | WANG Ling-kan LU Yi-chen CHEN Qi NI Li-zhong |
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| Abstract: | The curing procedure of bisphenol A cyanate ester resin modified by copolymerization with epoxy E-51 and alicyclic epoxy resin R-122 was studied by differential scanning calorimetry(DSC).According to Kissinger equation and Crane theory,the apparent activation energy and reaction order were obtained.They were 60.522 kJ/mol and 0.89 respectively.The curing reaction was nearly a first order reaction.The initial curing temperature,peak curing tempetature and temination curing temperature was 132.1 ℃,168.7 ℃,and 246.0 ℃ respectively.The results showed that the epoxy resins could promote the curing of BADCy and the copolmerization system could completely cured at 177 ℃. |
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| Keywords: | bisphenol A cyanate ester resin epoxy resin curing reaction kinetic parameter |
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