Oil-resistant and anti-aging protective coating for rubber shock absorber and preparation method thereof

A protective coating, carbodiimide technology, applied in antifouling/underwater coatings, polyurea/polyurethane coatings, coatings, etc., can solve the hidden dangers of power equipment safety and reliability, rubber vibration reduction effect, bearing capacity And other mechanical properties and performance degradation and other problems, to achieve the effect of good bonding force and adaptability, high flexibility, excellent resilience

Active Publication Date: 2015-04-22
中昊北方涂料工业研究设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, environmental factors such as water vapor, salt spray, and high temperature will also accelerate the failure of rubber materials, causing a sharp decline in rubber vibration damping effect, bearing capacity, and other mechanical properties and performance, and more importantly, the safety and reliability of power equipment. will bring great danger

Method used

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  • Oil-resistant and anti-aging protective coating for rubber shock absorber and preparation method thereof
  • Oil-resistant and anti-aging protective coating for rubber shock absorber and preparation method thereof
  • Oil-resistant and anti-aging protective coating for rubber shock absorber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) Synthesis of polyaspartic ester for component A of oil-resistant and anti-aging protective coatings for rubber vibration isolators: first add 33.00 kg of isophorone diamine and 20.00 kg of diethylene triamine, and pass nitrogen gas. Slowly add 47.00 kg of dibutyl maleate, and keep the temperature at about 40°C. After the reaction is completed, react for about 5 hours, vacuum filter, and discharge the material to obtain the oil-resistant and anti-aging protective coating for rubber vibration isolators. aspartate.

[0046] (2) Preparation of component A of oil-resistant and anti-aging protective coatings for rubber vibration isolators: first mix 9.20kg BYK-163, 0.31kg BYK-307, 0.67kg carbodiimide, 2.90kg 4-benzoyloxy-2,2, Add 6,6-tetramethylpiperidine and 0.67kg of 8-hydroxyquinolinone into a mixed solvent consisting of 11.00kg of butanone, 10.00kg of xylene and 20.00kg of propylene glycol methyl ether acetate, stir well and add 2.15kg of organic bentonite , 9.20kg o...

Embodiment 2

[0051] (1) Synthesis of polyaspartic ester for oil-resistant and anti-aging protective coatings for rubber vibration isolators: first add 35.00 kg of isophorone diamine and 18.00 kg of diethylene triamine, and then pass in nitrogen, slowly Slowly add 47.00 kg of dibutyl maleate, and keep the temperature at about 40°C. After the reaction is completed, react for about 5 hours, vacuum filter, and discharge the material to obtain polytianmen for component A of oil-resistant and anti-aging protective coatings for rubber vibration isolators. aspartate.

[0052] (2) Preparation of component A of oil-resistant and anti-aging protective coatings for rubber vibration isolators: first mix 10.00kg BYK-161, 0.30kg BYK-358N, 0.60kg carbodiimide, 2.70kg 4-benzoyloxy-2,2, Add 6,6-tetramethylpiperidine and 0.60kg of 8-hydroxyquinolinone into a mixed solvent consisting of 10.00kg of butanone, 20.00kg of 0-butyl acetate and 10.00kg of methyl isobutyl ketone, stir well and add 2.00kg Organic ben...

Embodiment 3

[0057] (1) Synthesis of polyaspartic acid ester for oil-resistant and anti-aging protective coatings for rubber vibration isolators: first add 31.50 kg of isophorone diamine and 21.00 kg of diethylene triamine, and then pass in nitrogen, slowly Slowly add 47.50 kg of dibutyl maleate, and keep the temperature at about 40°C. After the reaction is completed, react for about 4 hours, vacuum filter, and discharge the material to obtain polytianmen for component A of oil-resistant and anti-aging protective coatings for rubber vibration isolators. aspartate.

[0058] (2) Preparation of oil-resistant and anti-aging protective coating component A for rubber vibration isolators: first, 11.30kg BYK-P104S, 0.27kg BYK-358, 0.60kg carbodiimide (PCD), 2.70kg hexamethylphosphoric triamide , 0.60kg8-hydroxyquinolinone is added in the mixed solvent that is made up of 8.00kg methyl ethyl ketone, 10.00kg methyl isobutyl ketone and 20.00kg propylene glycol methyl ether acetate, after stirring well...

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Abstract

The invention relates to an oil-resistant and anti-aging protective coating for a rubber shock absorber and a preparation method thereof. Aiming at the defects that a rubber base material for the shock absorber is low in aging resistance and oil resistance, a protective coating is prepared, and the aging resistance and oil resistance of the shock absorber rubber are improved, so that the service life of the rubber shock absorber is prolonged, and the overall safety of power equipment and normal operation of each part are guaranteed. The oil-resistant and anti-aging protective coating for the rubber shock absorber mainly comprises a component A and a component B. The component A of the oil-resistant and anti-aging protective coating for the rubber shock absorber consists of polyaspartic acid ester, carbon black, carbodiimide, a light stabilizer, 8-hydroxyquinolinone, a dispersing agent, a flatting agent, organobentonite, a matting agent and a mixed solvent. The component B of the oil-resistant and anti-aging protective coating for the rubber shock absorber consists of a hydroxyl-terminated polyester resin, aliphatic isocyanate, trimethylolpropane, amino-terminated polysiloxane, dibutyltin dilaurate and a mixed solvent.

Description

technical field [0001] The invention belongs to the coating protection and technical field of vibration isolator rubber, in particular to an oil-resistant and anti-aging protective coating for rubber vibration isolators and a preparation method thereof. Background technique [0002] In order to reduce the interference of the vibration and noise of the moving parts of the power equipment to the normal operation of the precision equipment; reduce the fatigue stress of various structural parts, especially the key parts, and improve the fatigue life; A large number of vibration isolators must be installed. Most of the elastic components in the vibration isolator are made of rubber (mostly nitrile rubber or natural rubber), which has good damping and vibration reduction effects, but poor aging resistance and oil resistance, which often become the reason for its better application. obstacle. Under the coupling effect of ozone, ultraviolet rays and other substances in the environ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/06C09D175/02C09D5/14C09D7/12C08G18/75C08G18/66C08G18/42C08G18/61C08G63/672C08G63/20
CPCC08G18/289C08G18/3206C08G18/4241C08G18/425C08G18/6677C08G18/73C08G18/755C08G63/20C08G63/668C08L2201/08C09D5/14C09D7/61C09D7/63C09D175/06C08L77/08C08K13/02C08K3/04C08K3/346C08K5/29C08K5/3437
Inventor 宋欢欢陈小庆李超宇王学龙王茜红
Owner 中昊北方涂料工业研究设计院有限公司
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