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Cross-linked butadiene rubber material and preparation method thereof

A technology of butadiene rubber and raw materials, which is applied in the field of rubber, can solve the problems of limited application and difficult dispersion, and achieve the effects of improving overall quality, improving dispersibility, and enhancing strength

Inactive Publication Date: 2016-03-30
HEFEI JIEMING NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, carbon nanotubes have high surface free energy, are prone to agglomeration, and are difficult to disperse in the polymer matrix, which limits their application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] A kind of cross-linked butadiene rubber material, it is made up of the raw material of following weight part:

[0024] Potassium aluminum sulfate 2, carbon nanotubes 30, hydroxyl-terminated polybutadiene 50, n-methylpyrrolidone 200, boron oxide 5, butadiene rubber 160, antioxidant 40102, sulfur 1.3, divinylbenzene 0.1, stannous sulfate 0.8 , PTFE wax 7, polyethyleneimine 2, phthalate 4, maleic anhydride 1.

[0025] A kind of preparation method of described cross-linked butadiene rubber material, comprises the following steps:

[0026] (1) Add the above potassium aluminum sulfate to 10 times deionized water, stir evenly, add stannous sulfate, and stir for 3 minutes at 70 rpm to obtain a sulfate solution;

[0027] (2) Put the above-mentioned carbon nanotubes in an aqueous hydrogen peroxide solution 40 times its weight and 0.3% in mass fraction for ultrasonic dispersion for 30 minutes, keep warm at 75°C for 100 minutes, filter, and vacuum-dry to obtain pretreated carbon n...

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Abstract

The invention discloses a cross-linked butadiene rubber material. The cross-linked butadiene rubber material comprises, by weight, 2-4 parts of potassium aluminum sulfate, 30-40 parts of carbon nanotubes, 50-60 parts of hydroxyl-terminated polybutadiene, 200-300 parts of n-methylpyrrolidone, 5-7 parts of boron oxide, 160-200 parts of butadiene rubber, 2-3 parts of an antioxidant 4010, 1.3-2 parts of sulfur, 0.1-0.17 parts of divinyl benzene, 0.8-2 parts of stannous sulfate, 7-10 parts of polytetrafluoroethylene wax, 2-3 parts of polyethyleneimine, 4-8 parts of phthalate and 1-2 parts of maleic anhydride. Divinyl benzene is adopted as a cross-linking agent to obtain a stable cross-linking assistant, so the stability of finished rubber is improved, and the comprehensive quality of the finished rubber is improved.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a crosslinked butadiene rubber material and a preparation method thereof. Background technique [0002] Due to its unique structure and excellent physical and chemical properties, carbon nanotubes are widely used in polymers in order to improve the thermal conductivity, electrical conductivity and physical properties of polymers. However, carbon nanotubes have high surface free energy, are prone to agglomeration, and are difficult to disperse in the polymer matrix, which limits their application. The surface modification of carbon nanotubes is one of the important ways to improve their dispersibility in polymers and prepare carbon nanotubes / polymer composites with excellent properties; [0003] Hydroxyl-terminated polybutadiene is liquid at room temperature, has good transparency, low viscosity, and good processing performance; and it can react with chain extenders and crosslinki...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/00C08L47/00C08L27/18C08K13/06C08K9/02C08K9/04C08K3/38C08K5/01C08K7/24C08J3/24
CPCC08L9/00C08J3/24C08J2309/00C08K2201/011C08L2201/08C08L2205/035C08L47/00C08L27/18C08K13/06C08K9/02C08K9/04C08K3/38C08K5/01C08K7/24
Inventor 高芳
Owner HEFEI JIEMING NEW MATERIAL TECH CO LTD