High-property epichlorohydrin rubber gasket and preparation method thereof

A chlorohydrin rubber and gasket technology, applied in the field of gaskets, can solve the problems of unsatisfactory sealing effect, low strength, poor wear resistance, etc., and achieve the effects of excellent effect, good corrosion resistance and good wear resistance.

Inactive Publication Date: 2013-03-27
ANHUI RONGDA VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing neoprene gaskets have defects such as unsatisfactory sealing effect, poor wear resistance, and low strength, which are far from meeting the actual requirements.

Method used

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  • High-property epichlorohydrin rubber gasket and preparation method thereof

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Embodiment

[0015] A kind of high-performance epichlorohydrin rubber gasket, the weight portion of its composition raw material is: chlorohydrin rubber H45 140 parts, Butyl rubber CBK139 12 parts, 15 parts of SG-6 PVC resin, 4 parts of propylene glycol sebacate polyester, 5 parts of acetyl triethyl citrate, 3 parts of dibutyl maleate, bis Isooctyl Thioglycolate 1.6 parts of di-n-octyl tin, 1.8 parts of dibasic lead phosphite, 4 parts of zinc oxide, 1.5 parts of zinc stearate, 36 parts of nano-calcium carbonate, 18 parts of nano-clay, 12 parts of carbon black N220, and quick-pressed carbon black N660 32 parts, 1.8 parts of bis(dioctyloxypyrophosphate) ethylene titanate, 0.8 parts of antioxidant 168, 1.5 parts of 3-aminopropyltrimethoxysilane, 0.6 parts of crosslinking agent TAC, silane coupling 1.5 parts of joint agent KH550, 1 part of accelerator TMTD, 2 parts of accelerator TETD, 0.8 parts of accelerator CBS, 1.5 parts of anti-aging agent TPPD, 2 parts of anti-aging agent NBC, 1.5 part...

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Abstract

The invention discloses a high-property epichlorohydrin rubber gasket. The gasket comprises the following raw materials in parts by weight: 135-145 parts of epichlorohydrin rubber H45, 10-15 parts of butyl rubber CBK139, 10-15 parts of SG-6 type PVC (polyvinyl chloride) resins, 3-5 parts of propanediol sebacate polyester, 3-5 parts of acetyl triethyl citrate, 2-4 parts of dibutyl maleate, 1-2 parts of isooctyl dimercaptoacetate di-n-octyl tin and the like. The gasket has the beneficial effects that the gasket has good high temperature resistance, sealability, flame retardance and corrosion resistance and can work in such medias as acid, alkali and oil for a long time; the volume and hardness of the gasket are small in variation; the gasket does not adhere to metal surfaces; and the gasket has small friction coefficient and good abrasion resistance and has the advantages of softness of bonding with sealing surfaces, good weathering aging and ozone aging resistance, durability and the like.

Description

technical field [0001] The invention relates to a sealing gasket, in particular to a high-performance chlorohydrin rubber sealing gasket and a preparation method thereof. Background technique [0002] Chlorohydrin rubber gasket is a material used for sealing inside machinery, equipment, pipelines, etc. Its characteristics are: good heat aging resistance and ozone resistance, flex resistance, good elasticity, oil resistance, solvent resistance, combustion resistance, low air permeability, good adhesion, etc., so the comprehensive performance is better than nitrile rubber and chloroprene Rubber, the price is lower than fluorine rubber and silicone rubber, widely used in defense industry and civilian industry. However, the existing neoprene gasket has defects such as unsatisfactory sealing effect, poor wear resistance and low strength, which are far from meeting the actual requirements. Therefore research and develop a kind of high-performance chlorohydrin rubber sealing gask...

Claims

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Application Information

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IPC IPC(8): C08L71/03C08L23/22C08L27/06C08L67/02C08K13/06C08K9/02C08K3/26C08K3/34C08K3/22C08K3/04B29C35/02
Inventor 胡光荣
Owner ANHUI RONGDA VALVE
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