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

Inactive Publication Date: 2014-11-19
启东市富强橡塑制品厂(普通合伙)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The existing rubber formulations for shock-absorbing rubber parts are basically made of hydrogenated nitrile rubber (modified rubber of nitrile rubber) as raw materials, because the market price of hydrogenated nitrile rubber raw rubber is more than 13 times that of nitrile rubber , so it is expensive to use, and the effect of eliminating vibration and noise is not ideal, and the reduction of vibration is not good, and the effect of shock absorption is not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

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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PUM

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Abstract

The invention discloses a formula of a damping rubber with high stretching stress and a production process for the formula. Reinforcing and filling carbon black in the formula is delicate in proportion, and white carbon black is added in a reinforcing and filling mode, so that improvement of hot tear resistance of the rubber material is facilitated; the tearing strength and the compressive strain resistance of the rubber material are effectively improved by adding poly-p-phenylene terephthamide (aramid fiber) in the reinforcing and filling mode; and a sulfur carrier and the sulfur are used simultaneously; and an effective vulcanization system combining high-sulfur low-accelerator with the sulfur carrier can be used for producing the damping rubber with impact resistance, remarkable tear resistance, long service life and low cost.

Description

Technical field [0001] The invention relates to the technical field of shock-absorbing rubber production, in particular to a formula and production process of high-constant elongation shock-absorbing rubber. Background technique [0002] Vibration is ubiquitous in real life. For example, electric tool electric hammers (electric hammers are based on electric drills, add a piston with a crankshaft connecting rod driven by an electric motor, and compressed air in a cylinder to make the air pressure in the cylinder It changes periodically, and the changing air pressure drives the hammer in the cylinder to reciprocate and strike the top of the drill bit, as if we were hitting the drill bit with a hammer (hence the name electric hammer) or electric pick (electric pick is a tool that uses a motor to drive and swing. The form allows the pick to generate the power to gouge the ground. The hydraulic pump pick uses an air compressor to transmit gas pressure to drive the pump hammer of the e...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L77/10C08K3/22C08K3/04C08K3/36C08K3/06
Inventor 王立平仇力波王林李旭
Owner 启东市富强橡塑制品厂(普通合伙)
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