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Sound-absorption coating composition

A technology of sound-absorbing paint and composition, applied in the field of paint, can solve the problems of not being able to adapt to the sound-absorbing paint, the cotton-like surface is not very beautiful, and the weather resistance of the paint is poor, and achieves the effects of reducing quality, preventing peeling and cracking, and improving weather resistance.

Inactive Publication Date: 2018-03-06
汪涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the advancement of science and technology, the sound-absorbing materials in the existing technology can no longer meet the requirements of sound insulation, and the original spraying operation requires professionals to use professional spray guns for spraying, which can no longer adapt to the existing sound-absorbing coatings, and the original The cotton-like surface formed by spraying sound-absorbing materials on the wall is not very beautiful, and the weather resistance of the original coating is poor, and it is prone to peeling in humid and high-temperature environments

Method used

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Examples

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Effect test

Embodiment 1

[0033] A preparation method of sound-absorbing coating composition:

[0034] (1) Mix 3000g of polyvinylidene fluoride emulsion and 300g of 4,4-oxobisbenzenesulfonyl hydrazide evenly and spin to obtain polymer fibers. The spinning process is: power supply voltage 60KV, spinning environment conditions are temperature 35°C, relative humidity 90%; the needle spacing of the multi-needle spinneret unit is 30cm, and the number of needleheads in the spinneret unit is 90;

[0035] (2) Place the polymer fiber obtained in step (1), 16.5g of ethylene glycol and 165g of sodium chloride in 100g of polyarylate emulsion, react for 30min under the condition of 90°C, and then react in 1mol / L acetic acid Soak in water for 20 minutes, replace the soaking solution every 30 minutes until no more sodium ions are precipitated, and then bake at 180°C for 20 minutes to obtain composite fibers;

[0036](3) Weigh and mix the water-based polyurethane emulsion, titanium dioxide and composite fiber at a ma...

Embodiment 2

[0039] A preparation method of sound-absorbing coating composition:

[0040] (1) Mix 3000g of polyethylene terephthalate emulsion and 270g of azodicarbonamide evenly and spin to obtain polymer fibers. The spinning process is: power supply voltage 60KV, and spinning environmental conditions are 35°C , the relative humidity is 90%; the distance between the needles of the multi-needle spinning unit is 30cm, and the number of needles in the spinning unit is 90;

[0041] (2) Place the polymer fiber obtained in step (1), 9.9g 1,3-butanediol and 163.5g sodium sulfate in 65.4g polyvinyl acetate emulsion, react at 85°C for 20min, and then react in 1mol Soak in / L formic acid for 20 minutes, replace the soaking solution every 30 minutes, until no more sodium ions are precipitated, and then bake at 160°C for 20 minutes to obtain composite fibers;

[0042] (3) Weigh and mix the water-based polyurethane emulsion, titanium dioxide and composite fiber at a mass ratio of 1:0.06:0.15, add 0.3...

Embodiment 3

[0045] A preparation method of sound-absorbing coating composition:

[0046] (1) Mix 3000g of polyarylate emulsion with 360g of N,N'-dinitrosopentamethylenetetramine and spin to obtain polymer fibers. The spinning process is: power supply voltage 60KV, spinning environment The conditions are a temperature of 35°C and a relative humidity of 90%; the needle spacing of the multi-needle spinneret unit is 30cm, and the number of needleheads of the spinneret unit is 90;

[0047] (2) Place the polymer fiber obtained in step (1), 30.24g 1,10-decanediol and 302.4g sodium nitrate in 134.4g nylon 6 emulsion, react at 95°C for 15-40min, and then Soak in 1mol / L boric acid for 20 minutes, replace the soaking solution every 30 minutes until no more sodium ions are precipitated, then bake at 190°C for 25 minutes to obtain composite fibers;

[0048] (3) Weigh and mix the water-based polyurethane emulsion, titanium dioxide and composite fiber at a mass ratio of 1:0.09:0.33, add 0.3% of the tot...

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Abstract

The invention relates to the technical field of coating and in particular relates to a sound-absorption coating composition. The sound-absorption coating composition contains waterborne polyurethane emulsion, and titanium white and composite fibers which are dispersed in the waterborne polyurethane emulsion, wherein each composite fiber comprises a macroporous inner core and a mesoporous-containing outer wall. According to the sound-absorption coating composition provided by the invention, the composite fibers with different inner and outer pore structures are dispersed in the waterborne polyurethane emulsion so that the effect of reducing the whole mass of a coating layer can be realized and the transmission of sound waves can be stopped to realize a sound insulation effect; meanwhile, anetwork structure formed by the porous composite fibers has a certain buffering effect; an acting force of heat expansion of a sound-absorption coating layer can be effectively buffered and a condition that the sound-absorption coating layer is peeled and cracked is prevented; and the titanium white is added and has a reflection effect on incident light, so that the ageing of the sound-absorptioncoating layer is slowed down and the weather resistance is improved.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a sound-absorbing coating composition. Background technique [0002] At present, people pay more and more attention to the harm of noise pollution to people's health and daily life, and the sound-absorbing function of buildings plays an increasingly important role in many building functions. Sound-absorbing materials can not only improve the indoor sound quality environment, but also play a very important role in noise control. [0003] Coatings have become one of the most important building decoration materials in construction projects because of their rich colors, good decorative performance, easy production and construction, and certain protective effects. Endowing coatings with sound-absorbing functions has become a technical direction in the development of coatings in recent years. one. The sound-absorbing coating in the prior art refers to the use of biological fibers, m...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D5/33C09D7/65
CPCC09D175/04C08K2003/2241C08L2205/035C08L2205/16C08L2207/53C09D5/004C08L27/16C08L67/03C08L1/284C08K3/22C08L67/02C08L31/04C08L33/12C08L77/02C08L79/02
Inventor 汪涛
Owner 汪涛
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