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High-oil-resistance high-wear-resistance sealing gasket and preparation method thereof

A technology of wear resistance and oil resistance, which is applied in the field of sealing gaskets with good oil resistance and wear resistance and its preparation, can solve the problems of poor elasticity, oil resistance, wear resistance and unsatisfactory strength, etc., and achieve long service life , Improve the tensile properties and mechanical properties, improve the effect of wear resistance and aging resistance

Active Publication Date: 2016-09-28
南通鼎佳橡胶科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing gaskets have poor elasticity, oil resistance, wear resistance and strength are not ideal, and gradually cannot meet the requirements of the society.

Method used

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  • High-oil-resistance high-wear-resistance sealing gasket and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1, a sealing gasket with good oil resistance and wear resistance, made of the following raw materials in parts by weight (kg): nitrile rubber 52, natural rubber 6, silicone rubber 8, halloysite 7, spherical silica powder 4 , carbon black N660 22, zinc stearate 1, dibutyl maleate 2, zinc oxide 3, aluminum oxide 2, polyethylene glycol 2, sodium tripolyphosphate 1, silane coupling agent KH5501, Nano chromium boride 2, nano carbon sol 2, antioxidant RD1, rosin 2, castor oil 1.

[0014] A preparation method of a sealing gasket with good oil resistance and wear resistance, comprising the following steps:

[0015] (1) Calcinate the halloysite at 460°C for 3 hours, take it out, cool it, and grind it into powder, then add sodium tripolyphosphate and nano-chromium boride, mix and stir for 35 minutes, then spray into the silane coupling agent KH550, at 14000r Stir for 55 minutes under / min to obtain modified halloysite for subsequent use;

[0016] (2) Mix spherical silic...

Embodiment 2

[0019] Example 2, a gasket with good oil resistance and wear resistance, made of the following raw materials in parts by weight (kg): nitrile rubber 54, natural rubber 7, silicone rubber 9, halloysite 8, spherical silica powder 5 , carbon black N660 23, zinc stearate 2, dibutyl maleate 3, zinc oxide 4, aluminum oxide 3, polyethylene glycol 3, sodium tripolyphosphate 2, silane coupling agent KH5502, Nano chromium boride 3, nano carbon sol 3, antioxidant RD2, rosin 3, castor oil 2.

[0020] A preparation method of a sealing gasket with good oil resistance and wear resistance, comprising the following steps:

[0021] (1) Calcinate the halloysite at 480°C for 4 hours, take it out, cool it, and grind it into powder, then add sodium tripolyphosphate and nano-chromium boride, mix and stir for 40 minutes, then spray into the silane coupling agent KH550, at 15000r Stir for 60 minutes under / min to obtain modified halloysite for subsequent use;

[0022] (2) Mix spherical silica powder...

Embodiment 3

[0025] Example 3, a gasket with good oil resistance and wear resistance, made of the following raw materials in parts by weight (kg): nitrile rubber 56, natural rubber 8, silicone rubber 10, halloysite 9, spherical silica powder 6 , carbon black N660 24, zinc stearate 3, dibutyl maleate 4, zinc oxide 5, aluminum oxide 4, polyethylene glycol 4, sodium tripolyphosphate 3, silane coupling agent KH5503, Nano chromium boride 4, nano carbon sol 4, antioxidant RD3, rosin 4, castor oil 3.

[0026] A preparation method of a sealing gasket with good oil resistance and wear resistance, comprising the following steps:

[0027] (1) Calcinate halloysite at 500°C for 5 hours, take it out, cool it, and grind it into powder, then add sodium tripolyphosphate and nano-chromium boride, mix and stir for 45 minutes, then spray into silane coupling agent KH550, at 16000r Stir for 65 minutes under / min to obtain modified halloysite for subsequent use;

[0028] (2) Mix spherical silicon micropowder,...

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PUM

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Abstract

The invention discloses a high-oil-resistance high-wear-resistance sealing gasket and a preparation method thereof, relating to the technical field of sealing gaskets. The high-oil-resistance high-wear-resistance sealing gasket is mainly prepared from nitrile-butadiene rubber, natural rubber, silicon rubber, halloysite, spherical silicon micropowder, carbon black N660, zinc stearate, dibutyl maleate, zinc oxide, aluminum oxide, polyethyleneglycol, sodium tripolyphosphate, a silane coupling agent KH550, nano chromium boride, a nano carbon sol, an anti-aging agent RD, rosin and castor oil. By using the nitrile-butadiene rubber as the main raw material, the sealing gasket has high oil resistance and wear resistance. By matching the natural rubber and silicon rubber, the sealing gasket overcomes the defects of the nitrile-butadiene rubber in aspects of elasticity and cold resistance. The added chromium boride, halloysite, nano carbon sol and the like can enhance the stretching resistance and mechanical properties of the sealing gasket and also enhance the wear resistance and aging resistance of the sealing gasket. The produced sealing gasket has the advantages of favorable overall performance, high applicability and long service life.

Description

technical field [0001] The invention relates to the technical field of gaskets, in particular to a gasket with good oil resistance and abrasion resistance and a preparation method thereof. Background technique [0002] Gasket is a material used for sealing inside machinery, equipment, pipelines, etc. Gaskets are resistant to oil, acid and alkali, cold and heat, and aging, so they are widely used in industries such as automobiles, electronics, chemicals, antistatic, flame retardant, and food. The rubber gasket is also widely used. There is a layer of rubber gasket on the lid of the drink we usually drink. That is used for sealing, and this is used to isolate the circulation from the outside air. There are static and dynamic working principles in machinery. In short, it is used to isolate from the outside world or a certain place. The working principle of the gasket is also very simple. It can be said that there is not much principle, that is, isolation. However, the existi...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L7/00C08L83/04C08L71/08C08L91/00C08L93/04C08K13/06C08K9/06C08K3/34C08K3/04C08K5/098C08K3/22C08K3/38
CPCC08K3/04C08K3/22C08K3/34C08K3/38C08K5/098C08K9/06C08K13/06C08K2201/011C08L7/00C08L9/02C08L71/08C08L83/04C08L91/00C08L93/04C08L2205/035C08L71/00C08K2003/2296C08K2003/2227
Inventor 黄嘉炜
Owner 南通鼎佳橡胶科技有限公司
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