| 简介 |
PURPOSE : A double liquid type spreading agent is provided to prevent calorie change or generation of harmful gas in consumption, and to reduce moisture content of coal, and to prevent scattering of asbestos.CONSTITUTION : A double liquid type spreading agent comprises a first liquid, as a coating former, containing 3-10 parts by weight of polyvinylalcohol, based on 100.0 parts by weight of water, 1-2 parts by weight of glycerine, 0.5-1 parts by weight of polyhydric alcohol, 5-7 parts by weight of oil, and 0.1-0.5 parts by weight of surfactant; a second liquid which includes 3-10 parts by weight of boron compound, 1-5 parts by weight of hydroxide salts, and 5-20 parts by weight of a hardener containing 5-25 wt% of emulsion solution, base on 100.0 parts by weight of water.COPYRIGHT KIPO 2013 |
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