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溴化环氧树脂印刷线路板热分解机理实验研究

李飞;赵增立;李海滨;陈勇

  The thermal decomposition of a kind of brominted epoxy resin(BER) printed circuit boards was investigated by using TG-FTIR and Py-GC/MS.The mechanism of the thermal decomposition of the resin was discussed.The experimental results show that during the thermal decomposition of BER,the brominated parts are firstly decomposed with the splitting of OH—C,O—CH2,C—C(Benzene) bonds,and the pyrolysis products such as CO,acetone,bromomethane,bromophenol and 2,6-dibromophenol are produced.The decomposition of unbrominated parts is conducted at higher temperature with the splitting of OH—C,CH2—O—benzene,C—C(Benzene) bonds,and the pyrolysis products containing phenol,p-isopropylphenol,p-isopropenylacetylphenol,o-methylphenol and p-methylphenol are made.……