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Molecular formula : CAS :
nature : blowing agent known as volatile. So join its polymer matrix formation of the cell structure of the material is only physical changes, no chemical changes. General to dissolve resin is a low boiling point liquid or solid easy sublimation, when the resin heat, they volatile or sublimation massive gas and plastic foam. In this process, the foam is the only form of physical changes and chemical composition. The physical blowing agent used mainly aliphatic hydrocarbons or halohydrocarbon as pentane, hexane, three Lambda methane, ethane trifluoroacetic triclosan, the boiling point does not normally exceed 100 ° C In addition, carbon dioxide, nitrogen and other gases.
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