| 摘要 |
PURPOSE: A diaphragm type accumulator is provided to suppress a gas permeability of diaphragm and to improve a processing efficiency and a life span. CONSTITUTION: The diaphragm type accumulator includes a rubber layer(81); and an adhesive layer(83). The rubber layer is composed of natural rubber 33~37 weight%, styrene-butadiene rubber 26~28 weight%, polyphenylene ether 1~2 weight%, carbon blank 1~2 weight%, zinc oxide 1~2 weight%, stearic acid 1~2 weight%, anti-aging agent 0.2~0.6 weight%, vulcanization accelerator 0.3~0.6 weight%, vulcanizate 0.4~1.0 weight%, retarder 0.4~0.8 weight%. The adhesive layer is composed of urethane prepolymer 20~24 weight%, zinc modified urethane resin 18~21 weight%, polyol 10~13 weight%, polyisocyanate compound 12~15 weight%, polyamide resin 10~13 weight%, epoxy resin 10~13 weight%, ethylendiamine 6~8 weight%, acetone 4~7 weight%.
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