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Base belt of sub-hydrogenated nitrile butadiene rubber synchronous belt

A technology of sub-hydrogenated nitrile and hydrogenated nitrile rubber is applied in the field of transmission belts, which can solve the problems of excess quality, increase costs, waste materials, etc., and achieve the effects of lower price, good elasticity, and excellent heat and oil resistance.

Inactive Publication Date: 2011-02-09
浙江沪天胶带有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is generally stipulated that the timing belt must be replaced after 80,000 to 100,000 kilometers for middle and low-end cars. Therefore, the quality of the hydrogenated nitrile timing belt is greatly excessive, which wastes materials and increases costs.
At present, there is no medium-quality product at home and abroad

Method used

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Effect test

Embodiment Construction

[0043] The present invention will be further described below with specific embodiment:

[0044] The base belt of hydrogenated nitrile synchronous belt, the main parts by weight are as follows:

[0045] Hydrogenated nitrile rubber: 50 parts;

[0046] Nitrile-40 rubber: 25 parts;

[0047] Neoprene: 25 parts;

[0048] Zinc oxide: 5 parts;

[0049] Stearic acid: 1.5 parts;

[0050] Antiaging agent MB: 1 part;

[0051] Antiaging agent NBC: 1 part;

[0052] Peroxide curing agent (odorless DCP): 4 parts;

[0053] Cross-linking agent: 1.5 parts;

[0054] Adhesive RS: 3.8 parts;

[0055] Adhesive A: 2.5 parts;

[0056] Dibutyl ester: 6 parts;

[0057] Triethanolamine: 3 parts;

[0058] N330 carbon black: 20 parts;

[0059] Semi-reinforcing carbon black: 20 parts;

[0060] White carbon black: 10 parts.

[0061] The present invention adds other organic synthetic materials in the raw material formula of the base belt of hydrogenated nitrile rubber, reduces the cost of sizing...

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Abstract

The invention belongs to the technical field of transmission belts, in particular to a base belt of a sub-hydrogenated nitrile butadiene rubber (sub-HNBR) synchronous belt. The base belt comprises the following materials in parts by weight: 48-55 parts of butadiene rubber, 15-25 parts of butyronitrile-40 rubber, 15-25 parts of chloroprene rubber, 5 parts of zinc oxide, 1.5 parts of stearic acid, 1 part of anti-aging agent MB, 1 part of anti-aging agent NBC, 4 parts of peroxide vulcanizing agent (no DCP contained), 1.5 parts of cross-linking agent, 3.8 parts of binding agent RS, 2.5 parts of binding agent A, 6 parts of butyl phthalate, 3 parts of triethanolamine, 20-30 parts of N330 carbon black, 10-20 parts of semi-reinforcing carbon black, and 10-20 parts of white carbon black.

Description

Technical field: [0001] The invention belongs to the technical field of transmission belts, in particular to a base belt of a hydrogenated nitrile synchronous belt. Background technique: [0002] At present, there are two kinds of products in the production of automobile synchronous belts at home and abroad, one is chloroprene synchronous belt, chloroprene becomes brittle after aging at 130℃×120h, and it is used in cars for about 40,000-60,000 kilometers; The other is hydrogenated nitrile timing belt. Hydrogenated nitrile rubber can still maintain good elasticity and strength after aging at 130°C×1000h, and its service life can reach more than 150,000 kilometers. But its main raw material, hydrogenated nitrile rubber, is expensive, nearly 300 / kg, which is 10 times that of neoprene. Now, because the neoprene synchronous belt cannot meet the requirements of 80,000-100,000 kilometers, the low-end cars also use hydrogenated nitrile synchronous belt. However, it is generally st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/04C08K5/14C08L15/00C08K3/36C08K5/09C08L11/00F16G1/06C08K3/22C08K5/17C08K13/02C08L9/02
Inventor 冯世金奚拥银张汝勇
Owner 浙江沪天胶带有限公司
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