A kind of preparation method of anti-ultraviolet rubber antioxidant

A rubber anti-aging agent and anti-ultraviolet technology, which is applied in the field of preparation of anti-ultraviolet rubber anti-aging agent, can solve the problems of low anti-fatigue and anti-ultraviolet performance, poor thermal stability and durability, poor compatibility, etc., and achieve strong anti-fatigue and Anti-ultraviolet performance, good thermal stability and long-lasting performance, good compatibility effect

Active Publication Date: 2017-12-29
顶塑实业(广东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: Aiming at the disadvantages of poor thermal stability and durability of traditional rubber antioxidants, low anti-fatigue and anti-ultraviolet performance after use, and poor compatibility with rubber matrix, a kind of rubber anti-aging agent treated with lemon juice is provided. To remove the soil, use gum arabic to modify the treated montmorillonite under the action of microorganisms to obtain modified wide-layer montmorillonite, then extract flavonoids from tartary buckwheat, and extract flavonoids under the action of coupling agent After reacting with the modified broad-layer montmorillonite, the anti-ultraviolet rubber anti-aging agent is prepared

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] Firstly, fresh lemons are peeled and squeezed for juice, filtered to obtain lemon juice, centrifuged with a centrifuge for 10 minutes, and separated to obtain a supernatant, and the montmorillonite is ball milled with a ball mill for 20 minutes, passed through a 200-mesh sieve, and the sieved powder and After the supernatant was mixed according to the mass ratio of 1:5, put it into an ultrasonic oscillator, oscillate and impregnate with a power of 200W for 1h; The filter residue after the freezing treatment is put into an oven to dry to obtain a wide-layer montmorillonite powder; the above-mentioned wide-layer montmorillonite, gum arabic and distilled water are mixed in a mass ratio of 1:1:5, and put into a fermenter as a fermentation bottom Then add Bacillus subtilis to the fermentation substrate according to the inoculum amount of 10%, then put the fermenter into a 30°C incubator, keep it for fermentation for 7 days, take out the fermented product and filter it, and wa...

example 2

[0021]First take fresh lemons and squeeze the juice after peeling, filter to obtain lemon juice, centrifuge the lemon juice for 13 minutes with a centrifuge, separate to obtain the supernatant, take montmorillonite and use a ball mill for 25 minutes, pass through a 200-mesh sieve, and sieve the powder and After the supernatant was mixed according to the mass ratio of 1:5, put it into an ultrasonic oscillator, oscillate and impregnate with a power of 250W for 2h; The filter residue after the freezing treatment is put into an oven to dry to obtain a wide-layer montmorillonite powder; the above-mentioned wide-layer montmorillonite, gum arabic and distilled water are mixed in a mass ratio of 1:1:5, and put into a fermenter as a fermentation bottom Then add Bacillus subtilis to the fermentation substrate according to the inoculation amount of 10%, then put the fermenter in a 35°C incubator, keep it for fermentation for 8 days, take out the fermented product and filter it, and wash t...

example 3

[0024] First take the fresh lemon peel and squeeze the juice, filter to obtain the lemon juice, centrifuge the lemon juice for 15 minutes with a centrifuge, separate to obtain the supernatant, take the montmorillonite and use a ball mill for 30 minutes, pass through a 200-mesh sieve, and sieve the powder and After the supernatant was mixed according to the mass ratio of 1:5, put it into an ultrasonic oscillator, oscillate and impregnate with a power of 300W for 2h; The filter residue after the freezing treatment is put into an oven to dry to obtain a wide-layer montmorillonite powder; the above-mentioned wide-layer montmorillonite, gum arabic and distilled water are mixed in a mass ratio of 1:1:5, and put into a fermenter as a fermentation bottom Then add Bacillus subtilis to the fermentation substrate according to the inoculation amount of 10%, and then put the fermenter in a 40°C incubator for 9 days of heat preservation and fermentation, take out the fermented product and fi...

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Abstract

The invention discloses a preparation method of an anti-ultraviolet rubber anti-aging agent and belongs to the technical field of rubber anti-aging agents. The anti-ultraviolet rubber anti-aging agent is made by: treating montmorillonite with lemon juice, modifying the treated montmorillonite with Arabic gum under the action of microorganisms to obtain modified wide montmorillonite, extracting flavones from tartary buckwheat, and reacting the flavone extract with the modified wide montmorillonite under the action of a coupling agent. The preparation method has the advantages that the preparation steps are simple, the prepared rubber anti-aging agent has good thermal stability and endurance, the rubber anti-aging agent is well compatible with a rubber base after usage, and has high fatigue resistance and high ultraviolet resistance, with the anti-aging efficiency 30-32% higher than that of the prior anti-aging agent.

Description

technical field [0001] The invention relates to a preparation method of an anti-ultraviolet rubber antioxidant, belonging to the technical field of rubber antioxidant preparation. Background technique [0002] During the use of rubber, it will be affected by external factors (such as ozone aging, thermal oxygen aging, etc.) and age, resulting in changes in its physical and mechanical properties, making the rubber lose its elasticity, reducing its mechanical properties and shortening its service life. In order to solve the problem of rubber aging, it is necessary to add appropriate additives to the rubber in order to inhibit or delay the aging process and prolong the service life. The additives used to prevent rubber aging are anti-aging agents. Rubber anti-aging agent is a chemical added in the rubber production process that can delay the aging of rubber and prolong the service life of rubber. The output and variety of anti-aging agents rank first among rubber additives. A...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L21/00C08L5/00C08K9/12C08K9/04C08K9/02C08K9/00C08K3/34C08K5/00C08K5/1545
CPCC08L21/00C08L2201/08C08L5/00C08K9/12C08K9/04C08K9/02C08K9/00C08K3/346C08K5/005C08K5/1545
Inventor 丛桂阳
Owner 顶塑实业(广东)有限公司
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