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A kind of rubber composition for making the compression layer of cloth-wrapped V-belt and its preparation method

A technology of rubber composition and V-belt, which is applied in the direction of building structure, building components, building insulation materials, etc., can solve the problems of shortened service life and reduced flex fatigue resistance, and achieve extended service life and excellent resistance to compression fatigue Performance, the effect of reducing power consumption

Active Publication Date: 2019-04-02
QINGDAO UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the rubber of the compression layer of the cloth-wrapped V-belt is mostly a combination of natural rubber (NR) and styrene-butadiene rubber (SBR). Usually, the hardness of the rubber material in the compression layer is increased to improve the support of the compression layer to ensure that the V-belt is in operation. High transmission efficiency, while the compression layer rubber material in the case of high hardness, the resistance to flex fatigue decreases sharply, resulting in the failure of the V-belt due to the cracking of the compression layer rubber material in the dynamic fatigue process, shortening the service life

Method used

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  • A kind of rubber composition for making the compression layer of cloth-wrapped V-belt and its preparation method
  • A kind of rubber composition for making the compression layer of cloth-wrapped V-belt and its preparation method
  • A kind of rubber composition for making the compression layer of cloth-wrapped V-belt and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A kind of rubber composition that is used for making the compression layer of covered cloth V-belt, its raw material component and mass fraction are as follows:

[0037]

[0038] The preparation method step of producing this rubber composition is as follows:

[0039] After pressure mixing natural rubber and styrene-butadiene rubber, add Eucommia rubber for mixing, then add polyethylene glycol PEG-4000, anti-aging agent RD and anti-aging agent 4010NA, coumarone resin, zinc oxide, N-cyclohexyl -2-Benzothiazole sulfenamide and dithiobenzothiazole are mixed, then add pine tar, high wear-resistant carbon black N330 and general carbon black N660, silica hydrate, light calcium carbonate and aluminum silicate The hydrate is mixed, and when the temperature reaches 125-135 ° C, the mixed rubber material is discharged to the open mill, and insoluble sulfur is added to further re-glue and mix for 2-3 minutes, and then the next piece is ready for use.

[0040] The vulcanizate of...

Embodiment 2

[0043] A kind of rubber composition that is used for making the compression layer of covered cloth V-belt, its raw material component and mass fraction are as follows:

[0044]

[0045]

[0046] The preparation method step of producing this rubber composition is as follows:

[0047] After pressure mixing natural rubber and styrene-butadiene rubber, eucommia rubber was added for mixing, and then polyethylene glycol PEG-4000, anti-aging agent RD, anti-aging agent 4010NA and anti-aging agent 4020, coumarone resin, zinc oxide, Mix N-cyclohexyl-2-benzothiazole sulfenamide and dithiobenzothiazole, then add pine tar, high wear-resistant carbon black N330 and general carbon black N660, silica hydrate, light calcium carbonate Mix with aluminum silicate hydrate, when the temperature reaches 125-135°C, discharge the mixed rubber material to the open mill, add insoluble sulfur, and then return to the glue and mix for 2-3 minutes, and then release the tablet for use.

[0048] The vu...

Embodiment 3

[0051] A kind of rubber composition that is used for making the compression layer of covered cloth V-belt, its raw material component and mass fraction are as follows:

[0052]

[0053]

[0054] The preparation method step of producing this rubber composition is as follows:

[0055] After pressure mixing natural rubber and styrene-butadiene rubber, add Eucommia rubber for mixing, then add polyethylene glycol PEG-4000, anti-aging agent RD and anti-aging agent 4020, coumarone resin, zinc oxide, N-cyclohexyl -2-Benzothiazole sulfenamide and dithiobenzothiazole are mixed, then add pine tar, high wear-resistant carbon black N330 and general carbon black N660, silica hydrate, light calcium carbonate and aluminum silicate The hydrate is mixed, and when the temperature reaches 125-135 ° C, the mixed rubber material is discharged to the open mill, and insoluble sulfur is added to further re-glue and mix for 2-3 minutes, and then the next piece is ready for use.

[0056] The vulc...

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Abstract

The invention relates to rubber composition for manufacturing a wrapping cloth V-belt compression layer and a preparation method of the rubber composition. The rubber composition is mainly prepared from components as follows: natural rubber, styrene butadiene rubber, eucommia rubber, a vulcanization activator, a lubricant, an antiaging agent, carbon black, white carbon black, pottery clay, calcium carbonate, a plasticizer, a tackifier, an accelerator and a vulcanizing agent. A natural rubber, styrene butadiene rubber and eucommia rubber compound system is adopted in the rubber composition, the flexural fatigue resistance and heat resistance of the rubber composition are improved, besides, carbon black and white carbon black are combined to serve as a reinforcing agent, dynamic heat dissipation is reduced while the support performance of rubber is guaranteed, and the fatigue life of the rubber is prolonged.

Description

technical field [0001] The invention relates to a rubber composition, in particular to a rubber composition for making a compression layer of a cloth-wrapped V-belt and a preparation method thereof. Background technique [0002] The V-belt compression layer rubber is the base rubber, and its function is to increase the area of ​​action between the V-belt and the sheave to improve transmission efficiency. The compression layer rubber will experience repeated bending and compression during the use of the V-belt, which is also the main reason for its failure. Therefore, the rubber composition used is required to have excellent flex fatigue resistance, compression fatigue resistance, small deformation and low heat generation. [0003] Eucommia rubber is a kind of rubber unique to my country, which can be obtained by extracting from Eucommia plants. Its chemical composition is the same as natural rubber, but its trans-ordered structure gives it unique properties. Compared with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08L9/06C08L95/00C08L91/00C08L71/02C08K13/02C08K3/04C08K3/26C08K3/22C08K3/36C08K5/3437C08K5/18
CPCC08K2003/2296C08K2201/014C08L7/00C08L2201/08C08L2205/025C08L2205/035C08L9/06C08L95/00C08L71/02C08K13/02C08K3/04C08K3/26C08K3/22C08K3/36C08K5/3437C08K5/18C08L91/00
Inventor 辛振祥王彦夏琳侯占峰
Owner QINGDAO UNIV OF SCI & TECH
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