无卤阻燃覆铜板制备方法的研究

Halogen-free Flame Retardant Laminate Preparation Method Study

以邻甲酚和甲醛缩合,得到高邻位线性的酚醛树脂,此酚醛树脂再与环氧氯丙烷(ECH)进行环氧化反应,合成得到了高性能酚醛环氧树脂,在此基础上加入DOPO提高其阻燃性,再用双酚A酚醛树脂对其进行固化,得到覆铜板用的胶液。通过环氧值,阻燃性,红外光谱测试,探讨了最佳实验条件为:含磷环氧树脂的合成温度在120℃左右,反应时间为4 h,最佳含磷量为2%。用盐酸丙酮法(标准HG2-741-72)测定所得树脂的环氧值达到0.497。

O-cresol and formaldehyde for condensation,a high-O-linear phenolic resins.The phenolic resin with epichlorohydrin（ECH） epoxy reaction,synthesized high-performance epoxy phenolic.On this basis DOPO to improve its fire-retardant and use of bisphenol A phenolic resin during curing,CCL was the glue.Through the epoxy value,fire retardant,IR,it was discussed the best experimental conditions were as follows ： The phosphorus-containing epoxy resin synthesis temperature of 120 ℃ and the reaction time of 4 h,the best phosphorus content of 2 %.Acetone hydrochloride（standard Made-741-72） of the epoxy resin derived from the value reached 0.497.