Study on Gas Changing-Color Response Core and Safe Suit Preparation Technology in Coal Mine

摘要

The explosion of coal gas is one of the important disasters in coal mine all the time. Due to the characters of coal gas such as colorless, odorless, flammable, water-fast, tending to explode, the strong to diffuse readily and osmosis, then basing on the changing color material answers to concentrationchanging of the gas in coal mine, a kind of ChangingColor-response core has been developed and used to make the safe exposure suit When the concentration of the gas is changing, with the help of activator that on the surface of the carrier, strong reaction is occurred on the surface of the re-spond-element, at the same time the calorie is released. The temperature goes up because the calorie was absorbed by the endothermic material, result that the colorchanging material of the safe exposure suit answer to different color and it answer to different gas concentration. According to Changing-Color-response core, worker can judge the gas concentration and respond as quickly as they can.