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Rubber composition for transmission belt and transmission belt

A technology of rubber composition and transmission belt, which is applied in the direction of transmission belt, V-belt, belt/chain/gear, etc. It can solve the problems of insufficient research, insufficient research on nitrogen adsorption specific surface area of ​​furnace carbon black and DBP oil absorption, etc.

Inactive Publication Date: 2010-01-27
BANDO CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, in this way, the research on the rubber compounding technology to make the resistance increase caused by the belt running is small, and to make the belt have the characteristics such as wear resistance necessary for the belt, has not been fully studied, and the nitrogen content of the furnace carbon black Adsorption specific surface area and DBP oil absorption have not been fully studied

Method used

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  • Rubber composition for transmission belt and transmission belt
  • Rubber composition for transmission belt and transmission belt
  • Rubber composition for transmission belt and transmission belt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～19 and comparative example 1～13

[0104] The proportioning of the rubber composition used to form the bottom rubber layer and the back rubber layer of the transmission belt is listed in Table 1. The commercially available products used are listed in Table 2. In addition, the ratio of the rubber composition used to form the adhesive rubber layer is listed in Table 3.

[0105]

[0106]

[0107]

[0108] table 3

[0109] Adhesive rubber

[0110]

Examples and Comparative Examples

EPDM (Esprene 301)

100

Furnace black (FEF)

60

processing oil

10

stearic acid

1

Zinc oxide

5

anti aging agent

2.5

vulcanization accelerator

25

crosslinking agent

4.5

Total (parts by mass)

1 85

[0111] In addition, the materials used were the same commercial items as those used in Table 2. The commercially available ethylene-α-olefin elastomers used were as follows.

[0112]...

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Abstract

This invention provides a rubber composition for a transmission belt, which can realize the manufacture of a transmission belt excellent in electroconductivity as well as in electroconductivity retaining property after running and having excellent resistance to fatigue from flexing and abrasion resistance. The rubber composition contains rubber, furnace carbon black, zinc oxide, and stearic acid. The furnace carbon black has a nitrogen adsorption specific surface area of not less than 75 m<2> / g and a DBP absorption of not less than 100 cm<3> / 100g and is contained in an amount of 50 to 100 parts by mass based on 100 parts by mass of the rubber. The content of the zinc oxide is not less than 6 parts by mass based on 100 parts by mass of the rubber. The content of the stearic acid is not less than 1 part by mass based on 100 parts by mass of the rubber.

Description

technical field [0001] The present invention relates to a rubber composition for transmission belts and a transmission belt. Background technique [0002] Conventionally, transmission belts such as V-belts and V-ribbed belts have been widely used. For example, such belts are widely used as transmission belts for driving auxiliary equipment when driving auxiliary equipment for automobiles. Static electricity is generated between the pulleys (resin, aluminum, etc. insulators) in the drive belt for auxiliary equipment, which may adversely affect electronic equipment or cause electric shock accidents due to leakage. [0003] Therefore, in recent years, it is required to reduce the resistance of the transmission belt for driving auxiliary equipment. Specifically, it is desired to provide a transmission belt having the following properties: when a voltage of 500V is applied to measure the resistance between a distance of 100mm, its resistance value is 50MΩ the following. It is a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L21/00C08K3/04C08K3/22C08K5/09C08L23/04F16G1/06F16G5/20
CPCF16G1/28C08K3/22C08K5/09F16G1/06F16G5/20F16G5/04C08K3/04
Inventor 松田尚
Owner BANDO CHEM IND LTD
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