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Chloroprene rubber gasket with high abrasion resistance and preparation method thereof

A neoprene rubber and gasket technology, applied in the field of gaskets, can solve problems such as low strength, unsatisfactory sealing effect, and poor wear resistance, and achieve good corrosion resistance, excellent effect, and good wear resistance

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

AI Technical Summary

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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  • Chloroprene rubber gasket with high abrasion resistance and preparation method thereof

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Embodiment

[0015] A high-wear-resistant neoprene rubber gasket, which consists of raw materials in parts by weight: CR121138 parts of neoprene, 12 parts of butyl rubber CBK13912, 22 parts of low-density polyethylene, 4 parts of acetyl triethyl citrate, cis-butene 3 parts of dibutyl diacid, 1.5 parts of di-n-octyl tin bis-thioglycolate, 4 parts of zinc oxide, 18 parts of nano-attapulgite, 22 parts of nano-dolomite powder, 24 parts of nano-bauxite powder, 12 parts of carbon black N33912 1.5 parts of titanate coupling agent TMC-TTS, 10101.8 parts of antioxidant, 1.5 parts of phenyltriethoxysilane, 1.2 parts of silane coupling agent KH550, 1.8 parts of 2-mercaptobenzimidazole, 1.5 parts of anti-aging agent OD, 1.5 parts of anti-aging agent ODA, 3 parts of accelerator DM, 2 parts of accelerator TMTD, 1 part of accelerator TETD, and 2 parts of modified tree ash.

[0016] Wherein, the modified tree ashes are prepared by the following method: first soak the tree ashes with 12% hydrogen peroxide ...

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Abstract

The invention discloses a chloroprene rubber gasket with high abrasion resistance. The chloroprene rubber gasket comprises the following raw materials in parts by weight: 135-145 parts of chloroprene rubber (CR)121, 10-15 parts of butyl rubber CBK139, 20-25 parts of low density polyethylene, 3-5 parts of acetyl triethyl citrate, 2-5 parts of dibutyl maleate, 1-2 parts of isooctyl dimercaptoacetate di-n-octyl tin and the like. The chloroprene rubber 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 highly wear-resistant neoprene rubber sealing gasket and a preparation method thereof. Background technique [0002] Neoprene gasket is a material used for sealing inside machinery, equipment, pipelines, etc. Its characteristics are: high temperature resistance, ozone resistance, natural aging resistance, vacuum resistance, gear oil resistance, transformer oil resistance, corrosion resistance, good flexibility, and are 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 wear-resisting neoprene sealing gasket and become the task of top priority. Contents of the invention [0003] The object of the present invention is to provide a high wear-resistant chloroprene r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L11/00C08L23/22C08L23/04C08K13/06C08K9/02C08K3/04C08K3/34C08K3/22C08K5/11C08J3/24B29C35/02
Inventor 胡光荣
Owner ANHUI RONGDA VALVE
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