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Low-odor and low-compression-deformation rubber sealing material and preparation method thereof

A rubber sealing, low-compression technology, applied in the field of rubber manufacturing, can solve the problems of large compression deformation and strong smell of rubber materials, and achieve the effects of increasing strength, prolonging service life and increasing wear resistance.

Inactive Publication Date: 2020-10-30
扬州华通橡塑有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a low-odor, low-compression-deformation rubber sealing material and its preparation method, which solves the problems of relatively large odor and relatively large compression deformation of rubber materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The embodiment of the present invention provides a rubber sealing material with low odor and low compression deformation, which is prepared from the following raw materials in parts by weight: 50 parts of natural rubber, 50 parts of polyurethane rubber, 20 parts of thermoplastic polyurethane elastomer, and 5 parts of rubber deodorant , 100 parts of carbon black, 5 parts of lignin rubber additives, 5 parts of accelerators, 10 parts of anti-aging agents, and 6 parts of vulcanizing agents.

[0025] Thermoplastic polyurethane elastomer is formed by reacting diphenylmethane diisocyanate with macromolecular polyols and low molecular polyols. The vulcanizing agent is one or more of sulfur, sulfur monochloride, and polysulfide polymers. The agent is a mixture of alkali lignin and lye, which is obtained by filtering through a nanofiltration membrane.

[0026] A method for preparing a rubber sealing material with low odor and low compression deformation, comprising the following ...

Embodiment 2

[0034] The embodiment of the present invention provides a rubber sealing material with low odor and low compression deformation, which is prepared from the following raw materials in parts by weight: 60 parts of natural rubber, 40 parts of polyurethane rubber, 12 parts of thermoplastic polyurethane elastomer, and 2 parts of rubber deodorant , 70 parts of carbon black, 1 part of lignin rubber additive, 3 parts of accelerator, 5 parts of anti-aging agent, and 2 parts of vulcanizing agent.

[0035] Thermoplastic polyurethane elastomer is formed by reacting diphenylmethane diisocyanate with macromolecular polyols and low molecular polyols. The vulcanizing agent is one or more of sulfur, sulfur monochloride, and polysulfide polymers. The agent is a mixture of alkali lignin and lye, which is obtained by filtering through a nanofiltration membrane.

[0036] A method for preparing a rubber sealing material with low odor and low compression deformation, comprising the following steps: ...

Embodiment 3

[0044] The embodiment of the present invention provides a rubber sealing material with low odor and low compression deformation, which is prepared from the following raw materials in parts by weight: 70 parts of natural rubber, 30 parts of polyurethane rubber, 10 parts of thermoplastic polyurethane elastomer, and 1 part of rubber deodorant , 90 parts of carbon black, 4 parts of lignin rubber additives, 5 parts of accelerators, 8 parts of anti-aging agents, and 5 parts of vulcanizing agents.

[0045] Thermoplastic polyurethane elastomer is formed by reacting diphenylmethane diisocyanate with macromolecular polyols and low molecular polyols. The vulcanizing agent is one or more of sulfur, sulfur monochloride, and polysulfide polymers. The agent is a mixture of alkali lignin and lye, which is obtained by filtering through a nanofiltration membrane.

[0046] A method for preparing a rubber sealing material with low odor and low compression deformation, comprising the following ste...

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PUM

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Abstract

The invention provides a low-odor and low-compression-deformation rubber sealing material and a preparation method thereof, and relates to the technical field of rubber manufacturing. The low-odor andlow-compression-deformation rubber sealing material is prepared from the following raw materials in parts by weight: 50-70 parts of natural rubber, 30-50 parts of polyurethane rubber, 10-20 parts ofa thermoplastic polyurethane elastomer, 1-5 parts of a rubber deodorant, 70-100 parts of carbon black, 1-5 parts of a lignin rubber additive, 3-5 parts of an accelerant, 5-10 parts of an anti-aging agent and 2-6 parts of a vulcanizing agent. By arranging the carbon black, the lignin rubber additive, the thermoplastic polyurethane elastomer and the like, the strength of the rubber is improved, thedeformation amount of the rubber is small, the wear resistance of the rubber is improved, the service life of the rubber material is prolonged, and the sealing effect is better; and by using the rubber deodorant and the natural rubber, the smell of the produced rubber can be removed, and in the use process, smell emission can be reduced, and harm to a human body is reduced.

Description

technical field [0001] The invention relates to the technical field of rubber manufacturing, in particular to a rubber sealing material with low odor and low compression deformation and a preparation method thereof. Background technique [0002] Rubber refers to a highly elastic polymer material with reversible deformation. It is elastic at room temperature, can produce large deformation under a small external force, and can return to its original shape after the external force is removed. Rubber is a completely amorphous polymer with a low glass transition temperature and often a large molecular weight, greater than hundreds of thousands. Rubber is divided into two kinds of natural rubber and synthetic rubber. Natural rubber is processed by extracting gum from rubber trees, rubber grass and other plants; synthetic rubber is obtained by polymerization of various monomers. Rubber products are widely used in all aspects of industry or life. [0003] Existing rubber sealing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L75/04C08L97/00C08K3/04
CPCC08L7/00C08L2205/025C08L2205/035
Inventor 殷朝擎唐光灵徐云祥
Owner 扬州华通橡塑有限公司