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An environmentally friendly and anti-aging filter gasket and preparation method thereof

A sealing gasket and anti-aging technology, which is applied in the field of environmental protection and anti-aging filter gasket and its preparation, can solve the problems of poor oil resistance of the filter gasket, difficulty in guaranteeing service life, harmfulness of the filter gasket, etc. , achieve good oil resistance, prevent oil corrosion and improve extrusion resistance

Active Publication Date: 2020-12-15
NINGGUO SHUNDA SEALING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing filter gaskets have poor oil resistance, are susceptible to corrosion, and are prone to aging, which increases the frequency of filter replacement gaskets and increases the working intensity of laborers, making it difficult to guarantee their service life. The filter gasket needs to add some harmful auxiliary materials in order to pass its performance, which makes the filter gasket harmful and will affect the environment after being discarded

Method used

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  • An environmentally friendly and anti-aging filter gasket and preparation method thereof
  • An environmentally friendly and anti-aging filter gasket and preparation method thereof
  • An environmentally friendly and anti-aging filter gasket and preparation method thereof

Examples

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preparation example Construction

[0033] A kind of preparation method of environmental protection and anti-aging filter gasket, the concrete steps of this method are as follows:

[0034] A. Preparation of base layer 1: Chop nitrile rubber and fluororubber into granules respectively, then put them into a rubber mixer, and start kneading at a temperature of 110-130°C for 5-7min, mix rock wool fiber, butadiene Rosin olefinic acid ester, triethylene glycol diisocaprylate and polyethylene oxide are added to the stirred reactor for stirring, the stirring speed is 800-1000r / min, and the stirring is continued for 20min to prepare a mixed solution, and then to the rubber mixing Add nano-zinc oxide, stearic acid and hydrogen silicone oil into the machine, vacuumize and raise the temperature to 170-180°C and start kneading for 1-1.5 hours, then add the mixed solution and stir evenly to obtain a rubber mixture, which is placed in In a ventilated environment at room temperature for 10-15 hours, add sulfur and paraffin oil,...

Embodiment 2

[0047] An environment-friendly and anti-aging filter gasket comprises a base layer 1, and an environment-friendly and anti-aging layer 2 is arranged on the top and bottom of the base layer 1.

[0048] The base layer 1 is prepared from the following raw materials in parts by weight: 45 parts of nitrile rubber, 32 parts of fluororubber, 16 parts of rock wool fiber, 7 parts of rosin maleate, 3.5 parts of triethylene glycol diisocaprylate, 1.5 parts of polyethylene oxide, 4 parts of nano zinc oxide, 4 parts of stearic acid, 2 parts of sulfur, 3 parts of paraffin oil, 1.5 parts of hydrogen silicone oil.

[0049] The environmental protection anti-aging layer 2 is prepared from the following raw materials in parts by weight: 35 parts of nitrile rubber, 23 parts of chlorohydrin rubber, 57 parts of polytetrafluoroethylene powder, 45 parts of rosin maleate, superfine polyimide 4.5 parts of amine resin powder, 3.5 parts of titanium dioxide, 2.5 parts of pigment carbon black, 2.5 parts of...

Embodiment 3

[0051] An environment-friendly and anti-aging filter gasket comprises a base layer 1, and an environment-friendly and anti-aging layer 2 is arranged on the top and bottom of the base layer 1.

[0052] The base layer 1 is prepared from the following raw materials in parts by weight: 50 parts of nitrile rubber, 35 parts of fluororubber, 18 parts of rock wool fiber, 8 parts of rosin maleate, 4 parts of triethylene glycol diisocaprylate, 2 parts of polyethylene oxide, 5 parts of nano zinc oxide, 5 parts of stearic acid, 3 parts of sulfur, 4 parts of paraffin oil, 2 parts of hydrogen silicone oil.

[0053] The environmental protection anti-aging layer 2 is prepared from the following raw materials in parts by weight: 40 parts of nitrile rubber, 25 parts of chlorohydrin rubber, 6 parts of polytetrafluoroethylene powder, 6 parts of rosin maleate, ultrafine polyimide 5 parts of amine resin powder, 5 parts of titanium dioxide, 3 parts of pigment carbon black, 5 parts of essence, 1 part...

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Abstract

The invention discloses an environment-friendly and anti-aging filter sealing gasket and a preparation method thereof. The filter sealing gasket comprises a base layer, wherein an environment-friendlyand anti-aging layer is arranged on each of the upper surface and the lower surface of the base layer. Rock wool fibers are added to the base layer to improve toughness and strength of the base layer, so that extrusion resistance of the base layer is improved; by addition of polytetrafluoroethylene and superfine polyimide resin powder to the environment-friendly and anti-aging layers, oil resistance and wear resistance of the environment-friendly and anti-aging layers are effectively improved, the base layer is prevented from being corroded by oil stain, and normal work of the filter sealinggasket in an oil stain environment is guaranteed; oil resistance of the environment-friendly and anti-aging layers is further improved by adding titanium dioxide, pigment carbon black and essence materials to the environment-friendly and anti-aging layers, the prepared filter sealing gasket is safe and environmentally friendly, and is suitable for mass production; the sealing gasket is integratedby a sealing gasket integration device, production efficiency is high, manual operation is not needed, and the sealing gasket is simple and convenient.

Description

technical field [0001] The invention relates to the technical field of gaskets, in particular to an environmentally friendly and anti-aging filter gasket and a preparation method thereof. Background technique [0002] The gasket is a sealing spare part used in machinery, equipment, and pipelines as long as there is fluid. It uses internal and external materials to play a sealing role. Sealing gaskets are made of metal or non-metallic plate materials through cutting, stamping or cutting processes, and are used for the sealing connection between pipes, the sealing connection between parts of machinery and equipment, and can be made according to the material Divided into metal gaskets and non-metallic gaskets, metal gaskets include copper gaskets, stainless steel gaskets, iron gaskets, aluminum gaskets, etc. Non-metallic gaskets include asbestos gaskets, non-asbestos gaskets, paper gaskets, rubber gaskets, etc. [0003] The existing filter gaskets have poor oil resistance, ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B25/14B32B25/04B32B37/06B32B37/10B32B37/12B32B38/00C08L9/02C08L27/12C08K13/04C08K7/10C08K3/22C08K5/09C08K3/06C08K5/103C08L71/03C08L27/18C08L79/08C08K3/04C08J5/18
CPCB32B25/042B32B25/14B32B37/06B32B37/10B32B37/12B32B38/0004B32B2250/40B32B2307/552B32B2307/554B32B2307/558B32B2307/714B32B2319/00B32B2581/00C08J5/18C08K2003/2241C08K2003/2296C08K2201/011C08L9/02C08L2205/035C08L27/12C08K13/04C08K7/10C08K3/22C08K5/09C08K3/06C08K5/103C08L71/03C08L27/18C08L79/08C08K3/04
Inventor 夏显峰李靖黄维林
Owner NINGGUO SHUNDA SEALING
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