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Noise-reducing epoxy acrylic resin, noise-reducing emulsion and noise-reducing waterborne coating

A technology of epoxy acrylic and water-based coatings, applied in the direction of polyurea/polyurethane coatings, coatings, etc., to achieve the effect of improving slippery performance, filling concave vortices, and improving sound absorption and noise reduction effects

Active Publication Date: 2019-11-12
HAOLISEN CHEM TECH (JIANGSU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the noise reduction of car seat parts, at present, more rely on the wrapped sponge for noise reduction and noise reduction. It has a certain noise reduction function, but the root lies in the noise generated by the friction between the seat and the sponge, so it is urgent to develop a water-based High-performance noise-absorbing coatings to meet the needs of the automotive seat market for noise-absorbing and noise-reducing electrophoretic coatings

Method used

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  • Noise-reducing epoxy acrylic resin, noise-reducing emulsion and noise-reducing waterborne coating
  • Noise-reducing epoxy acrylic resin, noise-reducing emulsion and noise-reducing waterborne coating
  • Noise-reducing epoxy acrylic resin, noise-reducing emulsion and noise-reducing waterborne coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1 prepares low surface energy cyclopropane resin

[0019]

[0020] In the flask with stirring, condenser and dropping funnel, add bisphenol A epoxy resin, PPG-400, bisphenol A and methyl isobutyl ketone with an epoxy equivalent of 188 according to the formula, and heat up to 100°C. Add dimethylbenzylamine, continue to heat up to 125°C and stir for 1.5 hours until the epoxy equivalent is 750±50, drop the temperature to 115°C and add the mixed solution (methyl methacrylate, n-butyl acrylate, styrene, azo Diisobutyronitrile, PMTFPS, benzoyl peroxide), after 3 hours of dropwise addition, add propylene glycol monobutyl ether after half an hour of heat preservation, cool down to 105°C, add N-methylethanolamine, and react at 115°C for 3 hours, A low surface energy cyclopropane resin is obtained.

Embodiment 2

[0021] Embodiment 2 prepares blocked aliphatic isocyanate curing agent:

[0022] 10 parts methyl isobutyl ketone

[0023] 35 MDIs

[0024] 25 parts ethylene glycol butyl ether

[0025] Add methyl isobutyl ketone and MDI into a reaction vessel with a stirrer and a condenser according to the formula amount, blow nitrogen, raise the temperature to 75°C, add ethylene glycol butyl ether dropwise, drop it in 1 hour, and keep it warm for 2 hours , the temperature is lowered to below 45°C and the material is discharged to obtain the blocked aliphatic isocyanate curing agent.

Embodiment 3

[0026] Embodiment 3 prepares organosilicon modified epoxy auxiliary agent

[0027]

[0028] Add D-2000, KH-550, and ketimine into the reaction vessel with a stirrer and condenser according to the formula amount, blow nitrogen, heat up to 130°C, add bisphenol A epoxy resin with an epoxy equivalent of 188, 130 Keep warm at ℃ for 30 minutes, cool down to below 95 ℃, add acetic acid aqueous solution, and neutralize at 80 ℃ for 30 minutes, pay attention to observe the state of additives, if the viscosity is extremely increased, add deionized water in the last step to dilute and reduce viscosity in time to obtain the silicone Modified epoxy additives.

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Abstract

The invention relates to a noise-reducing epoxy acrylic resin, a noise-reducing emulsion and a noise-reducing waterborne coating. The epoxy acrylic resin is prepared from, by weight, 74.1 parts of a bisphenol A epoxy resin with an epoxy equivalent of 188, 6 parts of PPG-400, 20.4 parts of a bisphenol A, 14.5 parts of methyl isobutyl ketone, 0.1 part of benzyldimethylamine, 8 parts of methyl methacrylate, 10 parts of n-butyl acrylate, 4 parts of styrene, 1 part of azobisisobutyronitrile, 3 parts of PMTFPS, 1.5 parts of benzoyl peroxide, 15 parts of propylene glycol monobutyl ether and 12.5 parts of N-methylethanolamine, the emulsion contains the epoxy acrylic resin, and the waterborne coating contains the epoxy acrylic emulsion. The epoxy acrylic resin, the emulsion and the waterborne coating of the present invention have sound absorbing and noise reducing effects.

Description

technical field [0001] The invention relates to the field of epoxy acrylic resins, in particular to epoxy acrylic resins, emulsions and water-based paints with sound-absorbing effects. Background technique [0002] After decades of development, electrophoretic coatings have been widely used in the automotive industry, building materials, hardware, home appliances, furniture and other metal coating fields due to their advantages of high efficiency, energy saving and low pollution. As the car enters the home, car owners pay more and more attention to the driving quality and the driving experience. The noise during driving also seriously affects the mood of the driver. The noise comes from many aspects, such as the friction of the seat parts. The noise is also an important part. At present, two methods are used to deal with the sound insulation. The vibration-absorbing and sound-absorbing materials are used to achieve the effect of sound-absorbing and noise-reducing effects. R...

Claims

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Application Information

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IPC IPC(8): C08F283/10C08F220/18C08F220/14C08F212/08C09D175/04C09D7/65C09D7/61
CPCC08F283/10C09D175/04C09D7/65C09D7/61C09D7/70C08F220/14C08F212/08C08K13/04C08K3/04C08K7/04C08K3/346
Inventor 胡浩东陈海波赵颖黄磊郭战良贾龙娟刘铭
Owner HAOLISEN CHEM TECH (JIANGSU) CO LTD
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