Analysis and Suggestions on the Use of Polymer Materials for Coal Mines

Abstract

In recent years, polymer materials used in coal mines have been widely used in coal rock reinforcement, grouting and plugging in coal mines, and have played an important role in coal mine disaster management. However, according to the relevant data, more than 100 accidents have occurred in the use of polymer materials in China ' s coal mines, and most of them are used to reinforce coal and rock mass polymer materials. The use and safety management of polymer materials need to be strengthened. This paper summarizes the characteristics of polymer materials used in underground coal mines, analyzes the problems that may arise in the use of polymer materials used in coal mines and the shortcomings of relevant existing standards, and points out that most of the safety accidents of polymer materials are spontaneous combustion of materials, coal seam combustion and poisoning caused by toxic and harmful gases. The main causes of combustion accidents are too high reaction temperature, insufficient flame retardancy, uncontrollable reaction process, imperfect standards and insufficient safety awareness of the material itself. Reasonable suggestions and measures for preventing similar accidents are put forward to provide technical guidance for the safe use of polymer materials for coal mines.