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介绍了丁腈橡胶-金属复合密封垫片制备方法及最佳配方:生胶选用丁腈橡胶DN219,用量100,补强填料选用炭黑N330与热固性酚醛树脂的配合,用量都为30份,硫化体系采用过氧化物硫化体系,DCP用量为2份,其他助剂为:氧化锌5份、硬脂酸1份;增塑剂DOP 4份;防老剂4010NA2份;溶剂400份;垫片的施工工艺为:用清洗液(脱脂液)浸泡金属板材,然后用清洗机清洗、烘干后,采用喷涂或浸涂的方式将涂料施工于板材表面,然后放入烘箱中150℃×30min,取出冷却,最后经冲压、裁切成型。由本试验制备的垫片已应用于密封领域。
The preparation method and the best formula of nitrile rubber - metal composite gaskets are introduced: the raw rubber is made of nitrile rubber DN219, the dosage is 100, the reinforcing filler is made of carbon black N330 and thermosetting phenolic resin, the dosage is 30, The system uses peroxide curing system, the amount of DCP is 2 parts, other additives are: 5 parts of zinc oxide, 1 part of stearic acid; 4 parts of plasticizer DOP; 4010NA2 parts of antioxidant; 400 parts of solvent; The process is as follows: the metal plate is soaked with a cleaning solution (degreasing solution), and then cleaned with a washing machine. After drying, the paint is applied to the surface of the plate by spray coating or dip coating and then placed in an oven at 150 ° C. for 30 minutes, , The last stamping, cutting molding. The gasket prepared by this test has been used in the field of sealing.