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Sealing gasket with excellent resilience performance and preparation method thereof

A technology of resilience performance and sealing gasket, applied in the field of sealing gasket and its preparation, can solve problems such as affecting the use effect of sealing gasket, deformation of sealing gasket, waste of resources, etc., so as to improve stability and hardness, and avoid displacement. , improve the protective effect

Inactive Publication Date: 2019-07-05
刘东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since the gasket usually works under high temperature and high pressure environment, the long-term extrusion between the parts will inevitably cause the gasket to deform, affect the use effect of the gasket, and cause leakage, and the gasket is transported And during the storage process, there are often deformations caused by improper placement
Usually, the deformed gasket is discarded or reprocessed because it can no longer be used, which causes a great waste of resources. Therefore, improving the resilience performance of the sealing gasket makes the deformed gasket easy to return to its original shape, thereby improving The performance of the gasket is particularly important

Method used

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  • Sealing gasket with excellent resilience performance and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0025] A sealing gasket with excellent resilience performance, the components by weight are as follows: 10 parts of elastic graphene particles, 40 parts of copper sulfate solution, 2 parts of molybdenum sulfide, 3 parts of carboxymethyl cellulose, 15 parts of acrylic emulsion, 5 parts of methyl silicone oil, 40 parts of polytetrafluoroethylene powder, 80 parts of terpolymer rubber, 3 parts of glass fiber, and 1 part of auxiliary crosslinking agent.

[0026] As preferably, wherein the mass fraction of the copper sulfate solution is 10%; the auxiliary crosslinking agent is selected from one or at least two of the auxiliary crosslinking agent TAIC, HVA-2 or VP-4; the acrylic acid emulsion solid The content is 28%.

[0027] As preferably, the preparation method of wherein said elastic graphene particles is as follows:

[0028] 1) Take 10 parts of dimethylol propionic acid, add it to 20 parts of N-methylpyrrolidone solution, stir to dissolve, then add 13 parts of polyester diol, 0...

Embodiment 2

[0040] A sealing gasket with excellent resilience performance, the components by weight are as follows: 13 parts of elastic graphene particles, 50 parts of copper sulfate solution, 2.5 parts of molybdenum sulfide, 3.5 parts of carboxymethyl cellulose, 20 parts of acrylic acid emulsion, 6 parts of methyl silicone oil, 50 parts of polytetrafluoroethylene powder, 100 parts of terpolymer rubber, 4 parts of glass fiber, and 1.5 parts of auxiliary crosslinking agent.

[0041] As preferably, wherein the mass fraction of the copper sulfate solution is 13%; the auxiliary crosslinking agent is selected from one or at least two of the auxiliary crosslinking agent TAIC, HVA-2 or VP-4; the acrylic acid emulsion solid The content is 30%.

[0042] As preferably, the preparation method of wherein said elastic graphene particles is as follows:

[0043] 1) Take 13 parts of dimethylol propionic acid, add it to 25 parts of N-methylpyrrolidone solution, stir to dissolve, then add 15 parts of poly...

Embodiment 3

[0055] A sealing gasket with excellent resilience performance, the components by weight are as follows: 15 parts of elastic graphene particles, 60 parts of copper sulfate solution, 3 parts of molybdenum sulfide, 4 parts of carboxymethyl cellulose, 25 parts of acrylic acid emulsion, 7 parts of methyl silicone oil, 60 parts of polytetrafluoroethylene powder, 120 parts of terpolymer rubber, 5 parts of glass fiber, and 2 parts of auxiliary crosslinking agent.

[0056] As preferably, wherein the mass fraction of the copper sulfate solution is 15%; the cross-linking agent is selected from one or at least two of the cross-linking agent TAIC, HVA-2 or VP-4; the acrylic emulsion solid The content is 32%.

[0057] As preferably, the preparation method of wherein said elastic graphene particles is as follows:

[0058] 1) Take 15 parts of dimethylol propionic acid, add it to 30 parts of N-methylpyrrolidone solution, stir to dissolve, then add 17 parts of polyester diol, 1.0 parts of dibu...

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Abstract

The invention discloses a sealing gasket with excellent resilience performance and a preparation method thereof. The sealing gasket comprises the following raw materials including 10-15 parts of elastic graphene microparticles, 40-60 parts of a copper sulfate solution, 2-3 parts of molybdenum sulfide, 3-4 parts of carboxymethylcellulose, 15-25 parts of an acrylic emulsion, 5-7 parts of methylsilicone oil, 40-60 parts of polytetrafluoroethylene powder, 80-120 parts of ternary ethylene rubber, 3-5 parts of glass fibers and 1-2 parts of a crosslinking additive. The preparation method includes thefollowing steps that 1, the elastic graphene microparticles are added into the copper sulfate solution and subjected to pulse current treatment and pulse electromagnetic treatment to obtain modifiedelastic graphene microparticles; 2, the modified elastic graphene microparticles, the molybdenum sulfide and the carboxymethyl cellulose are mixed, then the acrylic emulsion and the methylsilicone oilare added, and ball milling and drying are carried out; 3, the remaining raw materials are mixed and cooled and then added into a product obtained in step 2 for stirring, compression molding and vulcanization treatment, and the sealing gasket can be prepared. The sealing gasket has excellent resilience performance, shock absorption and sound attenuation performance and sealing performance, can beused for a long time in the field of chemical pumps, and has a broad application and popularization prospect.

Description

technical field [0001] The invention belongs to the technical field of gasket processing, and in particular relates to a sealing gasket with excellent resilience performance and a preparation method thereof. Background technique [0002] Sealing gasket is an important element embedded in the flange joint to achieve medium sealing and can withstand joint displacement. It is often used to prevent oil, air and water leakage in mechanical and electrical products, petroleum and chemical equipment, and can also be used Prevent the immersion of external environmental media and dust, and play a protective and sealing role. Gaskets are the most common form of static sealing in industrial devices, so gaskets are one of the most widely used accessories in industrial production. The number of seals used by general industrial production enterprises is thousands, and for large-scale petrochemical, electric power and other enterprises, the number is tens of thousands, and leakage is the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L33/04C08L1/28C08L83/04C08L27/18C08L75/06C08L51/02C08K13/06C08K9/00C08K7/14C08K3/04C08K3/30
CPCC08K2003/3009C08K2003/3045C08L23/16C08L2205/035C08L33/04C08L1/286C08L83/04C08L27/18C08L75/06C08L51/02C08K13/06C08K9/00C08K7/14C08K3/042C08K3/30
Inventor 刘东
Owner 刘东
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