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Preparation method of graphene-based thermal-oxidation-resistant V-belt coated composite rubber

A graphene-based, composite rubber technology, applied in the field of V-belts, can solve the problems of reinforcement, corrosion resistance and heat dissipation, and achieve the effect of increasing heat resistance, improving thermal oxidation resistance, and overcoming difficulty in dispersion.

Active Publication Date: 2019-06-28
TAIZHOU BAIHUA RUBBER BELT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If atomic-level graphene cannot be effectively dispersed in rubber, its reinforcement, corrosion resistance, and heat dissipation performance will be greatly reduced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Cut 1 weight part of chloroprene rubber into small pieces less than 0.5cm, add 10 weight parts of toluene, and place it in a closed container for 72h to form a naturally flowing slurry; then add 3 weight parts of graphene, 0.5 Parts by weight of emulsifying agent sodium lauryl sulfate, stirred 10min with the rotating speed of 200rpm in airtight container, obtains graphene slurry;

[0035] (2) Add 10 parts by weight of zinc acetylacetonate and 10 parts by weight of ammonia water to the graphene slurry obtained in step (1), heat to 80°C in a closed container and stir at a high speed of 600rpm for 30min; then add 5 parts by weight of For needle-shaped wollastonite fibers, raise the temperature of the airtight container to 180°C, stir at a low speed of 50 rpm, and at the same time vacuum pump to remove volatile matter, and dry for 25 minutes to obtain a dry fluffy powder;

[0036] (3) the powder obtained in step (2) is crushed and loosened through a vortex airflow pulve...

Embodiment 2

[0039] (1) 1 weight part neoprene rubber is cut into the fritter less than 0.5cm, adds in 10 weight parts toluene, places 72h in airtight container, forms the slurry that can flow naturally; Then adds 5 weight parts graphene, 1 Parts by weight of emulsifying agent sodium lauryl sulfate, stirred 10min with the rotating speed of 200rpm in airtight container, obtains graphene slurry;

[0040] (2) Add 10 parts by weight of zinc acetate and 10 parts by weight of ammonia water to the graphene slurry obtained in step (1), heat to 80°C in a closed container and stir at a high speed of 800rpm for 45min; then add 8 parts by weight of water For magnesium stone fiber, raise the temperature of the airtight container to 180°C, stir at a low speed of 50rpm, and at the same time vacuum the volatile matter until a dry and fluffy powder is obtained;

[0041] (3) the powder obtained in step (2) is crushed and loosened through a vortex airflow pulverizer to obtain inorganic fibers adhering to the...

Embodiment 3

[0044] (1) 2 parts by weight of chloroprene rubber are cut into fritters less than 0.5cm, add in 20 parts by weight of toluene, place 72h in an airtight container, form a slurry that can flow naturally; then add 5 parts by weight of graphene, 1 Parts by weight of emulsifying agent sodium lauryl sulfate, stirred 10min with the rotating speed of 200rpm in airtight container, obtains graphene slurry;

[0045] (2) Add 8 parts by weight of zinc chloride and 15 parts by weight of ammonia to the graphene slurry obtained in step (1), heat to 80°C in a closed container and stir at a high speed of 900rpm for 30min; then add 10 parts by weight of For calcium carbonate whiskers, raise the temperature of the airtight container to 180°C, stir at a low speed of 100rpm, and at the same time vacuum pump to remove volatile matter until a dry fluffy powder is obtained;

[0046] (3) the powder obtained in step (2) is crushed and loosened through a vortex airflow pulverizer to obtain inorganic fib...

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Abstract

The invention relates to the technical field of transmission triangular belts, in particular to a preparation method of graphene-based thermal-oxidation-resistant V-belt coated composite rubber. The preparation method comprises the steps that graphene is dispersed in slurry formed by chloroprene rubber and gradually forms microchip zinc hydroxide in zinc salt, so that the graphene slurry adheres to the surface of the microchip zinc hydroxide in situ; the temperature is increased, inorganic fiber is added, and the microchip zinc hydroxide is gradually decomposed and converted into microporous zinc oxide, so that the graphene closely stays and is compounded in micropores of the microporous zinc oxide and is wrapped with an inorganic fiber macroscopic interface; the obtained compound micro powder of zinc oxide and graphene adheres to the inorganic fiber and can be effectively dispersed in the rubber to serve as V-belt coating glue through carrying of the inorganic fiber. The thermal oxidation resistance is greatly improved, and the strength of a V-belt is improved, so that the V-belt is suitable for being used in high-load and high-temperature environments.

Description

technical field [0001] The invention relates to the technical field of V-belts, in particular to a preparation method of a graphene-based heat-oxidation-resistant V-belt-wrapped composite rubber. Background technique [0002] The V-belt is a non-joint endless belt with an isosceles trapezoidal cross-section. The working surface is the two sides in contact with the wheel groove, and the belt does not contact the bottom surface of the wheel groove. The V-belt transmits power by pressing the two sides of the V-belt and the side of the wheel groove to generate friction. Compared with flat belt drive, V-belt drive has higher friction, so it can transmit higher power. At the same time, the V-belt is more compact than the flat belt, and the V-belt is a transmission belt without joints, so the transmission is relatively stable, and it is the most widely used transmission in belt transmission. Due to the characteristics of the belt structure, the V-belt has a high load-bearing capa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L11/00C08L9/02C08L91/06C08K13/04C08K7/24C08K3/04C08K7/10C08K7/08C08K7/14
Inventor 汤天文
Owner TAIZHOU BAIHUA RUBBER BELT
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