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Nanometer potash feldspar powder modified chloroprene rubber sealing gasket and its preparation method

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

Active Publication Date: 2013-03-20
凭祥市新秀新材料科技有限公司
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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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  • Nanometer potash feldspar powder modified chloroprene rubber sealing gasket and its preparation method

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Embodiment

[0015] A neoprene sealing gasket modified by nanometer potassium feldspar powder, the parts by weight of its raw materials are: 135 parts of neoprene rubber CR121, 15 parts of butyl rubber CBK139, 18 parts of chlorosulfonated polyethylene rubber CSM2305, SG-7 12 parts of PVC resin, 5 parts of acetyl triethyl citrate, 3 parts of dibutyl maleate, 2 parts of sulfur, 2.5 parts of magnesium oxide, 1.5 parts of calcium stearate, and isooctyl dimethyldithioglycolate 0.8 parts of ester tin, 55 parts of nano-potassium feldspar powder, 36 parts of nano-clay, 18 parts of carbon black N339, 10 parts of carbon black N660, isopropyl dioleate (dioctyl phosphate acyloxy) titanate 2 parts, 2 parts of antioxidant 1035, 3 parts of 3-aminopropyltrimethoxysilane, 3 parts of accelerator DM, 1.5 parts of accelerator TETD, 1.5 parts of accelerator CZ, 2 parts of antioxidant OD, 1 part of antioxidant MB 1 part, 1 part of antioxidant TPPD, 2 parts of modified tree ash.

[0016] Wherein, the modified t...

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Abstract

The invention discloses a nanometer potash feldspar powder modified chloroprene rubber sealing gasket. The sealing gasket comprises the following raw materials, by weight, 135-145 parts of chloroprene rubber CR121, 10-15 parts of butyl rubber CBK139, 15-20 parts of chlorosulfonated polyethylene rubber CSM2305, 10-15 parts of an SG-7 type PVC resin, 3-5 parts of acetyltriethyl citrate, 2-4 parts of dibutyl maleate, 1-2 parts of sulfur and 2-3 parts of magnesium oxide. The sealing gasket has the advantages of good high-temperature resistance, good sealing performance, good flame retardation, good corrosion resistance, realization of long-term working in mediums comprising acids, alkalis, oils and the like, small volume and hardness changes, no adhesion on the metal surface, small friction coefficient, good abrasion resistance, combination flexibility with the sealing surface, good weather ageing and ozone ageing resistances, durability and the like.

Description

technical field [0001] The invention relates to a sealing gasket, in particular to a neoprene rubber sealing gasket modified by nano potassium feldspar powder 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-performance chloroprene rubber sealing pad and become the task of top priority. Contents of the invention [0003] The purpose of the present invention is to provide a kind of...

Claims

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Application Information

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IPC IPC(8): C08L11/00C08L23/22C08L23/34C08L27/06C08K13/06C08K9/04C08K9/02C08K3/04C08K3/06C08K3/22C08K5/098C08K3/34
Inventor 张蔓青肖颖
Owner 凭祥市新秀新材料科技有限公司
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