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A highly wear-resistant molybdenum disulfide/styrene butadiene rubber/butadiene rubber nanocomposite

A nano-composite material and molybdenum disulfide technology are applied in the field of nano-composite materials of rubber emulsion and their preparation, which can solve problems such as interface problems affecting the application performance of materials or products, environmental pollution and the like

Active Publication Date: 2016-04-13
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Traditional rubber reinforcing fillers such as carbon black can not only reinforce rubber products but also greatly improve wear resistance, but carbon black itself will pollute the environment
The new anti-wear materials mainly add reinforcing fillers such as particles, whiskers and fibers to the rubber to improve the wear resistance, but the addition of whiskers or fiber materials is often difficult to solve the interface problem or seriously affects the material or material due to the large particle size. The application performance of the product

Method used

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  • A highly wear-resistant molybdenum disulfide/styrene butadiene rubber/butadiene rubber nanocomposite
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  • A highly wear-resistant molybdenum disulfide/styrene butadiene rubber/butadiene rubber nanocomposite

Examples

Experimental program
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Effect test

Embodiment 1

[0035] The molybdenum disulfide / styrene butadiene rubber / butadiene rubber composite material of the present invention is according to the following raw material formula and steps.

[0036] a. Preparation of molybdenum disulfide suspension and flocculation water

[0037] (1) Preparation of molybdenum disulfide suspension

[0038] First, 100 ml of suspending agent (N-methylpyrrolidone) was added to 2 g of molybdenum disulfide, and the molybdenum disulfide suspension was prepared by ultrasonic stripping for 1 hour.

[0039] (2) Preparation of flocculation water

[0040] Add 30 g of H2SO4 solution with a mass fraction of 99% into 3000 g of water, stir and mix evenly to prepare flocculation water for later use.

[0041] b. Some raw materials are pre-mixed

[0042] It is 1502 emulsion polystyrene butadiene rubber latex (mass fraction is 18.5%) that quality is 486.5g brand and the pyridine content that quality is 25.6g is 15% (mass fraction) butadiene rubber latex (mass fraction i...

Embodiment 2

[0049] According to the method and steps of Example 1, the difference is that the molybdenum disulfide quality in step a (1) is 4g, and the suspending agent N-methylpyrrolidone is 200ml, and the molybdenum disulfide / rubber nanocomposite material of the present invention is prepared.

Embodiment 3

[0051] According to the method and steps of Example 1, the difference is that the mass of molybdenum disulfide in step a (1) is 6g, and the suspending agent N-methylpyrrolidone is 300ml, to prepare the molybdenum disulfide / rubber nanocomposite material of the present invention.

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Abstract

The invention discloses a molybdenum disulfide / butadiene styrene rubber / butadiene-vinylpyridine rubber nanocomposite material with high wear resistance. The wear resistance of butadiene-vinylpyridine rubber is good, and further improvement on the wear resistance is very difficult. The molybdenum disulfide / butadiene styrene rubber / butadiene-vinylpyridine rubber nanocomposite material is prepared by the following method: firstly, performing ultrasonic peeling on molybdenum disulfide to prepare molybdenum disulfide suspension; secondly, nano-compounding the molybdenum disulfide suspension with butadiene-vinylpyridine rubber emulsion. The molybdenum disulfide belongs to an inorganic material, and bonding between the molybdenum disulfide and an organic rubber polymer is not ideal, so that in a nano-compounding process, a small amount of butadiene-vinylpyridine rubber emulsion is introduced; the butadiene-vinylpyridine rubber not only plays a role of inhibiting self stacking of molybdenum disulfide laminations in a flocculating process, but also plays a role of a interface bridge between the molybdenum disulfide and the butadiene-vinylpyridine rubber; the molybdenum disulfide / butadiene styrene rubber / butadiene-vinylpyridine rubber composite material prepared by the method has excellent mechanical properties and wear resistance, so that the molybdenum disulfide / butadiene styrene rubber / butadiene-vinylpyridine rubber composite material has a wide application prospect in tires, conveyor belts, sealing components, soles and other materials.

Description

Technical field: [0001] The invention relates to a high wear-resistant molybdenum disulfide / styrene butadiene rubber / butadiene rubber nanocomposite material and its preparation. In particular, it relates to a nanocomposite material of molybdenum disulfide suspension stripped by ultrasonic method and two rubber emulsions used in combination and a preparation method thereof. Background technique: [0002] The invention is to prepare high wear-resistant molybdenum disulfide / rubber composite material, which is used in materials such as tires, conveyor belts, seals and shoe soles. Such materials will inevitably produce friction and wear during use. [0003] Rubber abrasion is considered to be a damage phenomenon, but unlike the case of tensile tests and tear tests, it is the damage of minute areas caused by repeated application of frictional force to the surface of rubber materials. Abrasion resistance is a mechanical property closely related to the service life of rubber produc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/06C08L9/00C08K13/02C08K3/30
Inventor 刘力李宁张树柏姜志国齐士诚
Owner BEIJING UNIV OF CHEM TECH