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通过示差扫描量热法(DSC)和动态力学性能分析(DMA)等方法,对改性BMI树脂印刷电路板后处理工艺进行研究,根据DSC测试原理导出动力学方程,经计算机处理的结果表明,改性BMI树脂在200C下后处理5小时得到固化程度达100%,而DMA试验显示树脂基体经200℃下后处理10小时才能充分固化。并且可以看出,低温条件下,固化效应与相应温度下损耗峰和固化网络部分链段运动有关。
Through the differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) and other methods to study the post-treatment process of modified BMI resin printed circuit board, according to the DSC test principle derived kinetic equation, the results of computer processing, Post-treatment of the modified BMI resin at 200C for 5 hours gave a degree of cure of 100%, whereas the DMA test showed that the resin matrix was post-treated at 200 ° C for 10 hours to be fully cured. And it can be seen that under the condition of low temperature, the curing effect is related to the loss peak at the corresponding temperature and the movement of some segments of the solidifying network.