实验室制备煤矿防灭火封堵漏风材料的研究

Research on Preparation of Coal Mine Fire Fighting and Sealing Air Leakage Materials in Laboratory

矿井漏风容易引发火灾,对煤矿的安全生产有不利影响,高分子封堵漏风材料是目前解决矿井漏风隐患的常用手段之一,其中酚醛泡沫尤为常用。本文研究了酚醛泡沫的制备方法,并分析了该材料的实验室制备过程及可能出现的问题。其间,首先以苯酚、多聚甲醛和氢氧化钠为原料,制备热固性酚醛树脂,然后以酚醛树脂、盐酸、石油醚和吐温80为原料,制备出酚醛泡沫。

Air leakage in the mine is likely to cause fires and adversely affect the safe production of coal mines,and polymer sealing materials for air leakage are one of the commonly used methods to solve the hidden dangers of air leakage in mines,and phenolic foam is especially commonly used.This paper studied the preparation method of phe⁃nolic foam,and analyzed the laboratory preparation process and possible problems of the material.In the meantime,phenol,paraformaldehyde and sodium hydroxide were used as raw materials to prepare thermosetting phenolic resin,and then phenolic resin,hydrochloric acid,petroleum ether and Tween 80 were used as raw materials to prepare phe⁃nolic foam.