Rubber composite material using cardanol glycidyl ether modified silica and preparation method thereof

A technology of glycidyl ether and composite materials, which is applied in the field of inorganic nano powder modification, can solve problems such as high energy consumption, environmental risks, and high pollution, and achieve the effects of low price, improved static mechanical properties, and abundant resources

Active Publication Date: 2019-03-15
BEIJING UNIV OF CHEM TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the process of using silane coupling agent to modify inorganic filler and compound it with rubber is a high energy consumption and high pollution process. In future applications, this process has obvious environmental risks.

Method used

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  • Rubber composite material using cardanol glycidyl ether modified silica and preparation method thereof
  • Rubber composite material using cardanol glycidyl ether modified silica and preparation method thereof
  • Rubber composite material using cardanol glycidyl ether modified silica and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Take 100 parts by weight of polystyrene butadiene rubber (SBR1502) and put it into a closed mixer, set the rotor speed to 80r / min, and the temperature in the cavity to 45°C, masticate the rubber for 3 minutes, and finally keep the rubber in continuous flow the molten state. Get 60 parts by weight of white carbon black (K160) powder, add in the closed mixer in 2 times within 3 minutes; Get 6 parts by weight of cardanol glycidyl ether and 1.5 parts by weight of silane coupling agent Si75 simultaneously, White carbon black is added to the closed mixer at the same time. After adding the silica, continue to knead for 3 minutes, then adjust the temperature in the kneader chamber to above 90°C, and knead for another 7 minutes, so as to promote the silica to pass through the hydroxyl group on its surface and one end of the cardanol glycidyl ether molecule. The reaction of the epoxy group of the filler realizes the in-situ modification of the filler. Finally, the rubber compou...

Embodiment 2

[0056] Take 100 parts by weight of natural rubber and put it into a closed mixer, set the rotor speed to 70r / min, and the temperature in the cavity to 40°C, masticate the rubber for 3 minutes, and finally keep the rubber in a molten state of continuous flow. Take 70 parts by weight of white carbon black (VN3) powder, add it into the closed mixer in 3 times within 5 minutes; in the mixer. After adding the silica, continue to knead for 6 minutes, then adjust the temperature in the kneader chamber to above 90°C, and knead for another 8 minutes to make the silica pass through the hydroxyl group on its surface and one end of the cardanol glycidyl ether molecule. The reaction of the epoxy group of the filler realizes the in-situ modification of the filler. Finally, the rubber compound is discharged to complete the mixing of the rubber and the inorganic filler to obtain the natural rubber / modified white carbon black masterbatch. After the obtained masterbatch was cooled to room tem...

Embodiment 3

[0069] Get 100 parts by weight of natural rubber and put it between the double rolls of an open kneader, repeat the mastication for 5 times, so that the rubber can keep the molten state of continuous flow on the rolls. Adjust the roller distance between the two rollers to about 2mm, take 100 parts by weight of white carbon black (VN3) powder, and gradually mix the white carbon black into the rubber when there is accumulation of rubber between the two rollers; at the same time take 10 parts by weight of cardanol glycidol Ether and 2 parts by weight of silane coupling agent KH590 are mixed into the rubber while adding white carbon black. After adding the white carbon black, continue mixing for 4 minutes and remove the rubber. Adjust the roller temperature of the open kneader to above 90°C, and knead the rubber for another 6 minutes to promote the reaction of the hydroxyl group on the surface of the silica with the epoxy group at one end of the cardanol glycidyl ether molecule to...

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Abstract

The invention relates to a rubber composite material using cardanol glycidyl ether modified silica. The rubber composite material using the cardanol glycidyl ether modified silica comprises rubber, silica and cardanol glycidyl ether, and can further comprise a silane coupling agent. Structural characteristics of cardanol glycidyl ether are used, so that the cardanol glycidyl ether modifies the silica through epoxy group grafting, furthermore, unsaturated long carbon chain hydrocarbon can be crosslinked with the rubber molecular chains, and the cardanol glycidyl ether has the function of modifying the silica similar to the conventional silane coupling agent. Compared with the method of using the silane coupling agent for modifying the silica, the cardanol glycidyl ether can modify the silica under mild conditions to greatly reduce the modification cost and energy consumption of the silica. In addition, water is the only reaction by-product when the cardanol glycidyl ether modifies the silica, and other small organic molecules are not produced, thereby being of great help to reduce VOC emissions during the modification process of the silica.

Description

technical field [0001] The invention relates to the technical field of inorganic nanometer powder modification, and more specifically, relates to a rubber composite material modified with cardanol glycidyl ether and a preparation method thereof. Background technique [0002] Silica is a kind of nano-scale inorganic nanoparticles. Using silica instead of carbon black as a filler in rubber composites can effectively reduce the loss factor of the rubber compound. Therefore, the rubber / silica composite material is an ideal material for preparing "green tire" tread compound. [0003] As an inorganic filler, silica has a large specific surface area, is highly polar, and has an obvious self-aggregation tendency; therefore, improving the dispersion of silica in the rubber matrix through modification can effectively improve the rubber / Comprehensive performance of silica composite materials. In addition, by building a chemical bond between rubber and silica, the loss factor of rubb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/06C08L7/00C08L51/10C08K13/06C08K9/04C08K9/06C08K3/36
CPCC08K3/36C08K9/04C08K9/06C08K13/06C08K2201/011C08L7/00C08L9/06C08L51/10
Inventor 张立群郑骏驰张宁董栋孙敏利卢咏来冯予星
Owner BEIJING UNIV OF CHEM TECH
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