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Method for modifying nano white carbon black by using ionic liquid-anti-aging coupling agent for rubber products

A nano-silica and ionic liquid technology, applied in chemical instruments and methods, dyeing low-molecular organic compound treatment, inorganic pigment treatment, etc., can solve the problems of volatile anti-aging agents, poor compatibility between silica and rubber, extraction and other problems, to achieve the effect of excellent modification effect, increase crosslink density, and increase hardness

Inactive Publication Date: 2019-01-04
ANHUI JINHUA ZINC OXIDE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention prepares the white carbon black grafted with anti-aging agent on the surface to solve the problems of poor compatibility between white carbon black and rubber, easy volatilization and extraction of anti-aging agent in the traditional rubber formula

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for modifying nano-silica with ionic liquid-anti-aging coupling agent for rubber products, is characterized in that it comprises the steps:

[0029] (1) Ionic liquid wet modified silica:

[0030] Put 90 parts of nano-silica in a vacuum electric drying oven at 145-155°C and dry for 10 hours. After cooling down, mix with 2.7 parts of ionic liquid evenly, and stir for wet modification;

[0031] (2) Silane coupling agent surface modified nano-silica:

[0032] Add toluene to the ionic liquid wet-modified silica obtained in (1) at a ratio of 1:10, then add methacryloyloxymethyltrimethoxysilane, ultrasonically disperse for 1 hour, and place in an oil bath at 110-112°C Heating under reflux for 9 hours, cooling down, centrifuging, washing the precipitate with absolute ethanol 3 times, and fully drying in a high-temperature oven to obtain nano-silica surface-modified by a silane coupling agent;

[0033] (3) Modification of silica surface grafted anti-aging coupling age...

Embodiment 2

[0040] A method for modifying nano-silica with ionic liquid-anti-aging coupling agent for rubber products, is characterized in that it comprises the steps:

[0041] (1) Ionic liquid wet modified silica:

[0042] Put 100 parts of nano-silica in a vacuum electric drying oven at 145-155°C and dry for 12 hours. After cooling down, mix with 3 parts of ionic liquid evenly, and stir for wet modification;

[0043] (2) Silane coupling agent surface modified nano-silica:

[0044] Add toluene to the ionic liquid wet-modified silica obtained in (1) at a ratio of 1:10, then add methacryloyloxymethyltrimethoxysilane, ultrasonically disperse for 2 hours, and place in an oil bath at 110-112°C Heating under reflux for 10 hours, cooling down, centrifuging, washing the precipitate with absolute ethanol 5 times, and fully drying in a high-temperature oven to obtain nano-silica surface-modified by a silane coupling agent;

[0045] (3) Modification of silica surface grafted anti-aging coupling ag...

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Abstract

The invention discloses a method for modifying nano white carbon black by using an ionic liquid-anti-aging coupling agent for rubber products. The nano white carbon black is dried in a vacuum electricheating drying box, mixed evenly with ionic liquid after cooling and stirred to obtain the ionic liquid wet modified white carbon black; toluene is added to and mixed with the ionic liquid wet modified white carbon black, methacryloyloxymethyltrimethoxysilane is added, ultrasonic dispersing is conducted, heating and refluxing are conducted in an oil bath, cooling and centrifuging are conducted, washing is conducted with absolute ethanol, and drying is conducted in a high temperature oven to obtain the nano white carbon black which is surface-modified with a silane coupling agent; an aqueous ethanol solution is added to the nano white carbon black which is surface-modified with the silane coupling agent, and the ultrasonic dispersing is conducted; the ethanol aqueous solution is added to the anti-aging coupling agent, magnetic stirring and hydrolyzing are conducted, mixing with the white carbon black ethanol solution is conducted, the ultrasonic dispersing is continued, reflux reactionis conducted under nitrogen protection, after cooling, rotary evaporation is conducted, post-treatment is conducted in the vacuum oven, pulverizing and washing with the absolute ethanol are conducted, and vacuum-drying is conducted to obtain the white carbon black.

Description

technical field [0001] The invention belongs to the field of modified white carbon black materials, and in particular relates to a method for modifying nano white carbon black with an ionic liquid-anti-aging coupling agent for rubber products. Background technique [0002] With the implementation of tire labeling regulations and REACH regulations promulgated by the European Union, green tires have become [0003] The trend of future development. Silica is widely used in the rubber industry as the second largest filler after carbon black. [0004] Due to its special structure, the application of silica can endow the tire with lower rolling resistance and better moisture resistance [0005] slippery, but it also brings a series of processing problems. Facing the current situation, how to improve the production of silica in rubber [0006] Dispersion in the rubber matrix, expanding the application of silica in the rubber industry has become an important research direction. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/30C09C3/08C09C3/12
CPCC01P2006/21C01P2006/22C09C1/309C09C3/006C09C3/08C09C3/12
Inventor 张训龙
Owner ANHUI JINHUA ZINC OXIDE CO LTD
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