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Ozone-resistant and anti-aging modified natural rubber material and preparation method thereof

A natural rubber and ozone-resistant technology, applied in the field of rubber materials, can solve the problems of poor ozone oxidation resistance, poor oxidation resistance, and short service life, and achieve the effects of slow migration speed, low volatility, and long service life

Inactive Publication Date: 2019-09-13
南漳富元鼎航空器材配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the common problems in natural rubber are that the poor oxidation resistance leads to poor anti-aging performance and short service life, especially the poor ozone oxidation resistance, which limits its application.

Method used

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  • Ozone-resistant and anti-aging modified natural rubber material and preparation method thereof
  • Ozone-resistant and anti-aging modified natural rubber material and preparation method thereof
  • Ozone-resistant and anti-aging modified natural rubber material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Composition of raw materials (parts by weight): 60 parts of natural rubber, 30 parts of modified butadiene rubber, 40 parts of carbon black, 2 parts of vulcanizing agent, 8 parts of naphthenic oil, 1 part of accelerator MBTS-751, 1 part of accelerator M-80, 3 parts of commonly used anti-aging agent, 2 parts of new anti-aging agent, 2 parts of anti-ozone protective wax, 4 parts of dispersant and 3 parts of zinc oxide. :4.

[0034] Among them, the modified butadiene rubber is prepared by the following method: add the silane coupling agent KH500 into the water-ethanol solution (volume ratio 1:1), hydrolyze it under acidic conditions for 0.5h, then add 1g carbon fiber, 2g nanometer two Silica and 1g of kaolin were stirred and reacted for 1 hour, filtered under reduced pressure, washed with deionized water to obtain 4.5g of modifier; 20g of butadiene rubber was masticated with an open mill, and 4.5g of modifier was added for mixing to obtain The mixed rubber was parked for ...

Embodiment 2

[0043] Raw material composition (parts by weight): 70 parts of natural rubber, 40 parts of modified butadiene rubber, 50 parts of carbon black, 2.5 parts of sulfur, 10 parts of engine oil, 0.5 parts of accelerator M, 1 part of accelerator DM, and 1 part of accelerator DPG , 3.5 parts of commonly used anti-aging agent, 2.5 parts of new anti-aging agent, 2.5 parts of anti-ozone protective wax, 5 parts of dispersant and 5 parts of zinc oxide; 1:4.

[0044] Among them, the modified butadiene rubber is prepared by the following method: add the silane coupling agent KH500 into the water-ethanol solution (volume ratio 1:1), hydrolyze it under acidic conditions for 0.5h, then add 1g carbon fiber, 2g nanometer two Silica and 1g of kaolin were stirred and reacted for 1 hour, filtered under reduced pressure, washed with deionized water to obtain 4.5g of modifier; 20g of butadiene rubber was masticated with an open mill, and 4.5g of modifier was added for mixing to obtain The mixed rubbe...

Embodiment 3

[0049] Raw material composition (parts by weight): 62 parts of natural rubber, 32 parts of modified butadiene rubber, 42 parts of carbon black, 2.1 parts of sulfur, 8.5 parts of softener, 2.1 parts of accelerator DM / DPG, 3.1 parts of commonly used anti-aging agent, new anti-aging 2.1 parts of agent, 2.1 parts of anti-ozone protective wax, 4.2 parts of dispersant and 3.2 parts of zinc oxide; carbon black is made by mixing wear-resistant carbon black and fast extrusion carbon black, and the mass ratio is 1:4.

[0050] Among them, the modified butadiene rubber is prepared by the following method: add the silane coupling agent KH500 into the water-ethanol solution (volume ratio 1:1), hydrolyze it under acidic conditions for 0.5h, then add 1g carbon fiber, 2g nanometer two Silica and 1g of kaolin were stirred and reacted for 1 hour, filtered under reduced pressure, washed with deionized water to obtain 4.5g of modifier; 20g of butadiene rubber was masticated with an open mill, and 4...

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Abstract

The invention provides an ozone-resistant and anti-aging modified natural rubber material. The ozone-resistant and anti-aging modified natural rubber material is prepared from the following raw materials in parts by weight: 60 to 70 parts of natural rubber, 30 to 40 parts of modified butadiene rubber, 40 to 50 parts of carbon black, 2 to 2.5 parts of a vulcanizing agent, 8 to 10 parts of a softening agent, 2 to 2.5 parts of an accelerator, 3 to 3.5 parts of a common anti-aging agent, 2 to 2.5 parts of a novel anti-aging agent, 2 to 2.5 parts of an ozone-resistant protective wax, 4 to 5 parts of a dispersant and 3 to 5 parts of zinc oxide. The preparation method provided by the invention is simple and has extensively-available raw materials; and the rubber material prepared by using the preparation method provided by the invention has the advantages of good performances like aging resistance, elasticity, ultraviolet resistance, ozone resistance, oxidation resistance, wear resistance andfatigue resistance, excellent mechanical properties and broad application prospect.

Description

technical field [0001] The invention relates to the technical field of rubber materials, in particular to an ozone-resistant and anti-aging modified natural rubber material and a preparation method thereof. Background technique [0002] With the continuous development of science and technology, people put forward higher and higher requirements for the ride comfort and handling stability of automobiles. The automobile suspension system directly affects the ride comfort of the vehicle, and the spring is almost the core of the dynamic performance of all suspension systems. Because the rubber material itself has the advantages of light weight, impact resistance and high-frequency vibration absorption, coupled with the improvement of rubber and metal bonding technology, the metal rubber spring formed by the combination of metal and rubber is widely used in the support device of automobile suspension. [0003] The elasticity of butadiene rubber is the best among all synthetic rub...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L11/00C08L91/06C08L91/00C08K13/04C08K3/04C08K5/18C08K7/06C08K3/36C08K3/34C08K5/375
CPCC08K2201/011C08K2201/014C08L7/00C08L2201/08C08L2205/02C08L2205/025C08L2205/035C08L11/00C08L91/06C08L91/00C08K13/04C08K3/04C08K5/18C08K7/06C08K3/36C08K3/346C08K5/3725
Inventor 宋彭川王智慧李艳珊张玉强徐星月王坤熊琰
Owner 南漳富元鼎航空器材配件有限公司
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