High-temperature resistant anti-corrosion pump valve sealing gasket and preparation method thereof

A technology for corroding pumps and valve seals, applied in chemical instruments and methods, dyed polymer organic compound treatment, fibrous packing, etc., can solve problems such as shortening the service life of gaskets, high temperature resistance, and unsuitable requirements for corrosion-resistant equipment , to achieve the effect of improving high temperature resistance, improving mechanical strength and good corrosion resistance

Active Publication Date: 2013-12-11
ANHUI TIANMA PUMP VALVE GROUP
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The existing pump and valve sealing materials are incompatible with the requirements of the equipment in terms of high temperature resistance and corrosion resistance in use to varying degrees, which shortens the service life of the gasket and is far from meeting the actual needs. Therefore, it is urgent to develop a High temperature resistant anti-corrosion pump valve gasket

Method used

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  • High-temperature resistant anti-corrosion pump valve sealing gasket and preparation method thereof

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Embodiment Construction

[0011] A high-temperature-resistant and anti-corrosion pump valve gasket, made of the following raw materials in parts by weight: methyl vinyl silicone rubber 68, EPDM rubber 24, polyethylene 12, corundum powder 1.5, hydroxy silicone oil 7, gas phase white carbon Black 16, diphenylsilanediol 2, zinc oxide 2, alkylated diphenylamine 1.5, polyethylene wax 6, 2,4-dihydroxybenzophenone 0.6, nano clay 10, modified nano diamond 12, three Allyl cyanurate 1.5, vinyl tris(β-methoxyethoxy) silane 2, accelerator CZ 1.5, antioxidant RD 2, antioxidant 4020 1.5.

[0012] The preparation method of described modified nano-diamond is as follows:

[0013] a. Weigh a certain amount of nano-diamond, add 4% nano-tantalum carbide, 2% nano-zirconia, 3% nano-magnesium nitride, 6% nano-attapulgite, 3% nano-barite and mix evenly , calcined at 435°C for 3h, cooled to room temperature, then added 1.5% tetraisopropyl bis(dioctylphosphite acyloxy) titanate, 3% isooctyl palmitate, 5% polyisobutylene , 2% ...

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Abstract

The invention discloses a high-temperature resistant anti-corrosion pump valve sealing gasket and a preparation method thereof. The sealing gasket comprises the following raw materials in parts by weight: 60-70 parts of methyl vinyl silicone rubber, 20-30 parts of ethylene-propylene-diene monomer, 10-15 parts of polyethylene, 1-2 parts of a corundum powder, 5-10 parts of hydroxyl silicone oil, 15-20 parts of fumed silica, 2-3 parts of dihydroxydiphenylsilane, 2-3 parts of zinc oxide, 1-2 parts of alkylated diphenylamine, 4-8 parts of polyethylene wax, 0.5-1 part of 2,4-dihydroxy benaophenonel, 8-12 parts of nano argil, 10-15 parts of modified nano-diamond, 1-2 parts of triallyl cyanurate, 1-3 parts of vinyl-tris(beta-methoxyethoxy)silane, 1-2 parts of an accelerant CZ, 2-3 parts of an anti-aging agent RD, and 1-2 parts of an anti-aging agent 4020. The sealing gasket can resist high temperature, has high mechanical strength, high oil resistance and good corrosion resistance, can work in acids, alkalis, oil and other media for a long time, and is durable in use.

Description

technical field [0001] The invention relates to a sealing gasket and a preparation method thereof, in particular to a high-temperature resistant and anti-corrosion pump valve sealing gasket and a preparation method thereof. Background technique [0002] In the petrochemical industry, in order to ensure the normal operation of pumps, valves, compressors and other related equipment, the comprehensive performance of sealing materials plays a vital role. The existing pump and valve sealing materials are incompatible with the requirements of the equipment in terms of high temperature resistance and corrosion resistance in use to varying degrees, which shortens the service life of the gasket and is far from meeting the actual needs. Therefore, it is urgent to develop a High temperature resistant corrosion resistant pump valve gasket. Contents of the invention [0003] The purpose of the present invention is to provide a pump valve sealing gasket with excellent high temperature ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L23/16C08L23/06C08L83/06C08K13/06C08K3/36C08K3/22C08K3/34C08K5/5425C08K3/04C09C1/44C09C3/06C09C3/08C09C3/10
Inventor 王成华周峰王成荣
Owner ANHUI TIANMA PUMP VALVE GROUP
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