The principle of pentane blowing agent use

Pentane blowing agent use the principle of foaming agent and foaming agent differentiation physical foaming agent. Chemical foaming agent is break down to form gas at high temperature decomposition ( N2, CO2, NH3, etc. ) Organic and inorganic substances. This is usually a exothermic decomposition process and irreversible. Physical foaming agent can be liquid, also can be in normal circumstances have vaporized material. The physical foaming agent including aliphatic, hydrocarbons ( Pentane, hexane, decane, etc. ) 。 Chlorine hydrocarbon ( A the methane of cl, methylene chloride, etc. ) 。 Chlorine - Fluorocarbon compounds ( Cross-linked with methane, a fluorine dichlorodifluoromethane, etc. ) CO2, N2, rare gas and air. Regular physical foaming is refers to the & # 44; The physical foaming agent and resin matrix mixing & # 44; By changing the conditions in the process of operation & # 44; According to the principle of thermodynamic instability that changes the physical foaming agent & # 44; Then the process of generating bubbles. Pentane blowing agent