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A kind of preparation method of silica grafted graphene oxide/rubber composite material

A silicon dioxide and graphene technology, applied in the field of aviation tire tread rubber, can solve the problems of poor wear resistance and high heat generation of aviation tires, and achieve the effects of improving hardness and modulus, improving service life and low cost.

Active Publication Date: 2016-08-17
中国化工集团曙光橡胶工业研究设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a preparation method of silica grafted graphene oxide / rubber composite material in order to solve the problems of high heat generation and poor wear resistance of existing aviation tires

Method used

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  • A kind of preparation method of silica grafted graphene oxide/rubber composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Preparation of silica-grafted graphene oxide nanoparticles: use flake graphite as raw material, prepare graphite oxide by Hummers oxidation method, and form a uniformly dispersed graphene oxide mixed solution with a mass concentration of 0.5g / ml by 1000W ultrasonic treatment; Add 50g of sodium silicate and 200ml of deionized water into a 250ml Erlenmeyer flask, add 1.0ml of concentrated hydrochloric acid dropwise, and stir at 50°C for 24h. Pour the reaction solution into a 500ml beaker, add 100ml tetrahydrofuran, and add 30gNaCl, stir evenly, use a separatory funnel to separate the liquid, discard the lower clear liquid, and add 20g anhydrous MgSO to the upper organic liquid 4 Stand overnight, filter to obtain SiO 2 Sol; measure 15ml of ultrasonically dispersed graphene oxide mixed solution into the autoclave, add 30ml of SiO 2 Sol, put the reaction kettle in an oven at 80°C, react at a constant temperature for 2 hours, filter, wash, and dry to obtain gray-black powder...

Embodiment 2

[0024] The preparation method of silica-grafted graphene oxide nanoparticles is the same as in Example 1.

[0025] A silica-grafted graphene oxide / rubber composite material, the mass fraction of each component is: 100 parts of 1# smoked sheet rubber, 50 parts of super wear-resistant carbon black, 4 parts of white carbon black, 3 parts of silicon dioxide Grafted graphene oxide nanoparticles, 3.5 parts of silane coupling agent, 2 parts of heat stabilizer HS-80, 5 parts of zinc oxide, 3 parts of stearic acid, 2 parts of anti-aging agent 4020, 1 part of anti-aging agent RD, 2 parts of protection Wax, 2 parts of insoluble sulfur IS-60, 1 part of accelerator NOBS, 1 part of accelerator DZ, mixed evenly by internal mixer.

[0026] The silica-grafted graphene oxide / rubber composite was prepared, and its mechanical properties are shown in Table 1.

Embodiment 3

[0028] The preparation method of silica-grafted graphene oxide nanoparticles is the same as in Example 1.

[0029] A silica-grafted graphene oxide / rubber composite material, the mass fraction of each component is: 100 parts of 1# smoked sheet rubber, 50 parts of super wear-resistant carbon black, 4 parts of white carbon black, 4 parts of silicon dioxide Grafted graphene oxide nanoparticles, 5 parts of silane coupling agent, 2 parts of heat stabilizer HS-80, 6 parts of zinc oxide, 3 parts of stearic acid, 2 parts of anti-aging agent 4020, 1.5 parts of anti-aging agent RD, 2 parts of protection Wax, 2 parts of insoluble sulfur IS-60, 1 part of accelerator NOBS, 1 part of accelerator DZ, mixed evenly by internal mixer.

[0030] The silica-grafted graphene oxide / rubber composite was prepared, and its mechanical properties are shown in Table 1.

[0031] Table 1: Mechanical Properties of Compounds

[0032]

[0033] It can be seen from Table 1 that when a very small amount of si...

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Abstract

The invention relates to a preparation method of a silicon dioxide graft graphene oxide / rubber composite material, which comprises the following steps: by using natural rubber as a main material and superhigh-wear-resistance carbon black, high-dispersity silica white, silica white dispersing agent, silicon dioxide graft graphene oxide nanoparticles, silane coupling agent, heat stabilizer HS-80 and anti-reversion agent WK-901 as auxiliary materials, mixing according to certain parts by weight, compounding with a Banbury mixer to prepare compounded rubber, and extruding the compounded rubber with an extruder to prepare the semifinished product rubber. The composite material blended from the silicon dioxide graft graphene oxide and natural rubber has the characteristics of low heat generation, high tensile strength, high tearing strength, favorable abrasion resistance, favorable heat stability and the like. When being applied to aircraft tire tread rubber, compared with the traditional tread rubber, the rubber has the advantages of higher use safety and longer service life.

Description

technical field [0001] The invention relates to aviation tire tread rubber, in particular to a method for preparing a silica-grafted graphene oxide / rubber composite material. Background technique [0002] The existing aviation tire tread rubber has the disadvantages of poor thermal stability and wear resistance. Aviation tires take off and land at high speed under high load, which makes the tire tread rubber in a high temperature state, which in turn accelerates the degradation of the rubber, which also causes the tread rubber to wear faster and shorten the service life. It not only affects the safety of the aircraft, but also increases the workload of aircraft maintenance personnel and greatly increases the operating cost of the aircraft. [0003] At present, the use of high-amount high-abrasion-resistant carbon black in combination with silica is still the mainstream method in the field of aviation tire tread rubber preparation. However, although a high amount of high we...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08K13/06C08K9/00C08K3/04C08K3/36C08K3/22C08K5/09C08K3/06
CPCC08K2201/003C08K2201/011C08K2201/014C08L7/00C08L2201/08C08L91/06C08K13/06C08K9/02C08K3/04C08K3/36C08K2003/2296C08K5/09C08K3/06
Inventor 李善荣周胜
Owner 中国化工集团曙光橡胶工业研究设计院有限公司
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