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Preparation method of heat, oxygen and light-resistant antioxidant

A technology of anti-aging agent and anti-thermal oxygen, which is applied in the field of preparation of anti-thermal-oxygen light-type anti-aging agent, can solve the problems that natural rubber cannot be used, and natural rubber is easy to age, so as to prevent the autocatalytic process, improve the performance of vulcanizate, Anti-aging effect

Inactive Publication Date: 2018-04-13
常州市万昌化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention: Aiming at the defect that natural rubber is easy to age under high temperature, light and oxygen, which leads to the inability of natural rubber to be used, a preparation method of anti-heat and oxygen light type anti-aging agent is provided

Method used

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  • Preparation method of heat, oxygen and light-resistant antioxidant

Examples

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Effect test

example 1

[0024]Weigh 20g sodium vitamin C and pour it into 45mL deionized water, mix and stir for 10min to obtain self-made solution 1, weigh 16g lanthanum chloride and pour it into 35mL absolute ethanol and mix and stir for 8min to obtain self-made solution 2, and add self-made solution 2 dropwise to Self-made solution 1, and reacted in a water bath at 28°C for 45 minutes to obtain a reaction solution, then added 6 mL of acetone to the reaction solution, and continued to keep warm for 10 minutes to obtain a self-made precipitate, which was poured into a suction filter for suction filtration. Remove the filter residue, wash the precipitate with absolute ethanol and acetone for 20 minutes, and finally put it in an oven at 60°C for 1 hour, cool it down to room temperature naturally, pass it through a 100-mesh sieve after grinding for 8 minutes, collect the sieved powder 1, and weigh 16g of oxidation Graphite was put into a mixture of 20mL deionized water and 10mL absolute ethanol, and ult...

example 2

[0026] Weigh 25g sodium vitamin C and pour it into 55mL deionized water, mix and stir for 11min to obtain self-made solution 1, weigh 18g lanthanum chloride and pour it into 45mL absolute ethanol and mix and stir for 9min to obtain self-made solution 2, and add self-made solution 2 dropwise to Self-made solution 1, and reacted in a water bath at 32°C for 53 minutes to obtain a reaction solution, then added 7 mL of acetone to the reaction solution, and continued to keep warm for 11 minutes to obtain a self-made precipitate, which was poured into a suction filter for suction filtration. Remove the filter residue, wash the precipitate with absolute ethanol and acetone for 25 minutes, and finally put it in an oven at 70°C for 1.5 hours, cool it down to room temperature naturally, grind it for 9 minutes, pass through a 100-mesh sieve, collect the sieved powder 1, and weigh 18g Graphite oxide was put into a mixture of 25mL deionized water and 11mL absolute ethanol, and ultrasonically...

example 3

[0028] Weigh 30g sodium vitamin C and pour it into 65mL deionized water and mix and stir for 12min to obtain self-made solution 1. Weigh 20g lanthanum chloride and pour it into 55mL absolute ethanol and mix and stir for 10min to obtain self-made solution 2. Add self-made solution 2 dropwise to Self-made solution 1, and reacted in a water bath at 36°C for 60 minutes to obtain a reaction solution, then added 8 mL of acetone to the reaction solution, and continued to keep warm for 12 minutes to obtain a self-made precipitate, which was poured into a suction filter for suction filtration. Remove the filter residue, wash the precipitate with absolute ethanol and acetone for 30 minutes, and finally put it in an oven at 80°C for 2 hours, cool it down to room temperature naturally, and pass it through a 100-mesh sieve after grinding for 10 minutes, collect the sieved powder 1, and weigh 20 g of Graphite was put into a mixed solution of 30mL deionized water and 12mL absolute ethanol, an...

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Abstract

The invention belongs to the technical field of production of rubber antioxidants, and concretely relates to a preparation method of a heat, oxygen and light-resistant antioxidant. Rare earth reacts with sodium ascorbate to form a complex, the surface of graphene oxide is grafted with snail mucus and a silane coupling agent KH-560, a free radical chain inhibitor and a hydroperoxide decomposing agent are added to prevent a chain reaction in order to protect rubber, the hydroperoxide decomposing agent decomposes the rubber to facilitate difficult aging of natural rubber, expandable graphite, borax and molybdenum disilicide are added, the graphite can expand a sheet to form a compact thermal insulation carbon layer in order to benefit the ageing resistance of the natural rubber, an o-hydroxyaromatic compound converts excitation energy into heat energy through intramolecular transfer and efficient radiation-free deactivation, and the borax and molybdenum disilicide are beneficial to preventing oxygen from invading and carbon from diffusing outwards to form a good shielding effect, and achieve the anti-oxidation effect in order to make the natural rubber probe no easy to age, so the antioxidant has a broad application prospect.

Description

technical field [0001] The invention belongs to the production technical field of rubber anti-aging agents, and in particular relates to a preparation method of a heat-oxygen-light-resistant anti-aging agent. Background technique [0002] During long-term storage and use of rubber and its products, due to the effects of heat, oxygen, ozone, variable-valent metal ions, mechanical stress, light, high-energy rays, and other chemical substances and molds, etc., they will gradually become sticky and change. Hard and brittle or cracked, this phenomenon is called aging. With the progress and development of the aging process, the performance of rubber and its products will gradually decrease so that it will completely lose its use value. For this reason, it is necessary to add certain chemical substances to rubber and its products to improve its resistance to the above-mentioned various destructive effects, delay or inhibit the aging process, thereby prolonging the storage period a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/00C08K3/04C08K3/38C08K3/22C08K5/3475C08K7/24C08K5/18C08K9/04C08K9/06C08L7/00
CPCC08K5/0091C08K3/04C08K3/22C08K3/38C08K5/18C08K5/3475C08K7/24C08K9/04C08K9/06C08K2003/2255C08K2003/387C08K2201/014C08L2201/08C08L7/00
Inventor 雷春艳杨立军张淑娴
Owner 常州市万昌化工有限公司
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