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A kind of nitrile-butadiene cloth rubber sealing ring and preparation method thereof

A technology of rubber sealing ring and nitrile rubber is applied in the field of nitrile cloth rubber sealing ring and its production, which can solve the problems of poor wear resistance, insufficient hardness and rigidity, and achieve good wear resistance, high strength and manufacturing cost. reduced effect

Active Publication Date: 2022-04-08
上海捷赢密封技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the nitrile cloth rubber sealing ring generally has the following problems: 1) insufficient hardness and rigidity; 2) poor wear resistance

Method used

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  • A kind of nitrile-butadiene cloth rubber sealing ring and preparation method thereof
  • A kind of nitrile-butadiene cloth rubber sealing ring and preparation method thereof
  • A kind of nitrile-butadiene cloth rubber sealing ring and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1: a kind of nitrile-butadiene cloth rubber sealing ring, comprise cloth interleaving layer and nitrile rubber mucilage, each component and its corresponding parts by weight in the nitrile rubber mucilage are as shown in table 1, nitrile butadiene rubber glue The cloth rubber sealing ring is prepared through the following steps:

[0048] (1) homogeneously mixing hydrogenated nitrile butadiene rubber, zinc oxide, stearic acid, filler, anti-aging agent, silane coupling agent, vulcanizing agent and resorcinol to obtain nitrile butadiene rubber compound;

[0049] (2) mixing nitrile rubber compounded rubber with acetone, ethyl acetate and butyl acetate to obtain nitrile rubber mucilage;

[0050] (3) Evenly coat the nitrile rubber mortar on the surface of the cloth layer, and control the amount of glue attached to 220g / m 2 , to obtain nitrile cloth rubber after drying;

[0051] (4) Put the nitrile cloth rubber into the vulcanization mold after preforming, vulcani...

Embodiment 2-6

[0053] Embodiment 2-6: a nitrile cloth rubber sealing ring, the difference from embodiment 1 is that the components in the nitrile rubber mortar and their corresponding parts by weight are shown in Table 1.

[0054] Each component and parts by weight thereof in the nitrile rubber mucilage in the embodiment 1-6 of table 1

[0055]

[0056]

Embodiment 7

[0057] Embodiment 7: A nitrile-butadiene cloth rubber sealing ring, the difference from Embodiment 1 is that the filler is carbon black.

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Abstract

The invention discloses a nitrile-butadiene cloth rubber sealing ring and a manufacturing method thereof, and relates to the technical field of sealing ring manufacturing. Its technical gist is: a nitrile-butadiene rubber sealing ring, including a cloth layer and nitrile rubber glue, the nitrile rubber glue includes the following components by weight: hydrogenated nitrile rubber: 90‑110 zinc oxide: 3‑8 parts; stearic acid: 0.2‑0.8 parts; filler: 40‑60 parts; anti-aging agent: 0.1‑0.5 parts; silane coupling agent: 1‑5 parts; Resorcinol: 1-3 parts; Acetone: 150-180 parts; Ethyl acetate: 90-180 parts; Butyl acetate: 45-90 parts, the nitrile cloth obtained by using the above formula and dosage The rubber sealing ring has the advantages of good high pressure resistance and good wear resistance.

Description

technical field [0001] The invention relates to the technical field of sealing ring production, more specifically, it relates to a nitrile-butadiene cloth rubber sealing ring and a manufacturing method thereof. Background technique [0002] The commonly used materials for the sealing ring of the V-shaped sealing ring are pure rubber, cloth rubber, plastic, leather and so on. The cloth rubber structure can be cut and assembled, and can withstand high working pressure; the pure rubber structure cannot be cut and assembled, and has low pressure bearing capacity. [0003] Cloth-butadiene rubber is the most common and widely used material in the process of manufacturing V-shaped combined sealing rings. It is generally made of cotton canvas impregnated with nitrile rubber mortar and dried by solvent evaporation. Buna-N rubber is molded and vulcanized to obtain a single V-ring. [0004] The Chinese invention with the application number "200710031582.X" discloses a V-shaped sealin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L15/00C08L1/02C08K13/04C08K7/26C08K3/34C08K5/548C08K3/22C08K5/09C08K13/02
CPCC08L15/005C08L2205/16C08K2003/2296C08K2201/014C08L1/02C08K13/04C08K7/26C08K3/34C08K5/548C08K3/22C08K5/09C08K13/02C08K3/04
Inventor 倪立伟徐健
Owner 上海捷赢密封技术有限公司