Formula of damping rubber with high stretching stress and production process for formula
A shock-absorbing rubber and production process technology, which is applied in the field of shock-absorbing rubber production, can solve problems such as unsatisfactory vibration and noise elimination effects, poor vibration reduction, and unsatisfactory shock absorption effects, etc., to improve thermal tear resistance, Effects of long service life, improved tear strength and compression properties
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Embodiment 1
[0019] The present invention provides a formula for high-tensile shock-absorbing rubber, which is made of the following parts by weight of raw materials: 100 parts of nitrile rubber raw rubber; 5 parts of zinc oxide; 1.5 parts of stearic acid; 4 parts of antioxidants; and carbon Black N330, 30 parts; Carbon black N990, 35-37 parts; White carbon black 10 parts; Poly-p-phenylene terephthalamide 10-12 parts; Vulcanization accelerator 2 parts; Sulfur carrier 2 parts; Sulfur 1 part .
[0020] The raw rubber system preferably adopts Japanese imported N230NBR or domestically produced 3305NBR.
[0021] Because the rubber material is very hard and easy to tear when the product is ejected from the mold, the addition of white carbon black (WCB) in the reinforcing filler can help improve the hot tear resistance of the rubber material.
[0022] Poly-p-phenylene terephthalamide (aramid), Aramid fiber in English, is a new type of high-tech synthetic fiber with ultra-high strength, high modulus, hi...
Embodiment 2
[0026] A formula for high-tensile shock-absorbing rubber, made of the following parts by weight: 100 parts of nitrile rubber raw rubber; 5 parts of zinc oxide; 1.5 parts of stearic acid; 4 parts of antioxidant; carbon black N330, 30 Parts; carbon black N990, 37-40 parts; white carbon black 10 parts; poly-p-phenylene terephthalamide 12-15 parts; vulcanization accelerator 2 parts; sulfur carrier 2 parts; sulfur 1 part.
[0027] A production process of high-tensile damping rubber. After the rubber is mixed for a period of time, it is parked for 24 hours, and then the rubber is refined again.
[0028] The curing temperature is preferably 170-175 degrees Celsius, the curing time is preferably 350-400 seconds per mold, and the curing pressure is preferably 16Mpa.
[0029] The results of many experiments show that the average 100.00% fixed elongation of the shock-absorbing rubber produced by the formula and production process of the present invention is 13.90Mpa; the average maximum strengt...
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