Lightweight acoustical paint and preparation method thereof

A sound-absorbing coating, lightweight technology, applied to radiation-absorbing coatings, coatings, etc., can solve problems such as unsatisfactory sound-absorbing effect and potential safety hazards in coatings, and achieve unique texture, good sound-absorbing effect, and strong decorative effects

Active Publication Date: 2009-09-23
GUANGZHOU SUPER CHEM COATING CO LTDGUANGZHOU SUPER CHEM COATING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Foamed polystyrene particles, as mentioned above, will release poisonous gas in case of fire. This coating has potential safety hazards, and the invention does not screen the light perlite used, and the sound absorption effect is not ideal.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The composition and weight percent of this embodiment are: 3% of rutile titanium dioxide, 20% of 400 mesh heavy calcium carbonate, 8% of 400 mesh talcum powder, and ROVACE TM661 is 25%, 20-60 mesh open-cell expanded perlite is 15%, thickener NATROSOL PLUS 330 is 0.4%, wetting agent is 0.2%, dispersant is 0.7%, antifungal agent is 0.1%, fungicide is 0.1%, disinfectant Foaming agent 0.4%, pH regulator 0.1%, film-forming aid 1.2%, antifreeze 1.6%, water 24.2%. The preparation process steps are: (a) Pre-mixing: Weigh various materials according to the above weight percentages, mix 1 / 2 of water, wetting agent, dispersant, 1 / 2 of defoamer, antifungal agent, bactericide, Thickener and pH adjuster are added to the dispersing tank, and stirred at a low speed of 300-500 rpm for 15-20 minutes to form a colloidal solution; (b) Dispersing and grinding: the measured pigment and filler rutile titanium dioxide , 400 mesh heavy calcium carbonate and 400 mesh talcum powder were added to...

Embodiment 2

[0041] The composition and weight percentage of this embodiment are: 5% of anatase titanium dioxide, 15% of 600 mesh heavy calcium carbonate, 5% of 400 mesh talcum powder, 30% of styrene-acrylic emulsion D-68M, 80-120 mesh open-cell expansion Perlite 8%, thickener NATROSOL 250HBR 0.35%, wetting agent 0.15%, dispersant 0.5%, antifungal agent 0.2%, bactericide 0.2%, defoamer 0.4%, pH regulator 0.1%, film forming Auxiliary 1.5%, antifreeze 1.8%, water 31.8%. The coating preparation process repeats the steps of Example 1.

[0042] Prepare a 5mm thick paint film on the asbestos cement board, and use the reverberation chamber method to detect the average sound absorption coefficient of 0.51.

[0043] The above-mentioned styrene-acrylic emulsion D-68M was provided by Dow Chemical Shanghai United Carbon Latex Co., Ltd. The emulsion has a solid content of 49-51%, an average particle size of 0.2 μm, and a minimum film-forming temperature of 21°C. The above-mentioned thickener NATROSOL...

Embodiment 3

[0045] The composition and percentage by weight of the present embodiment are: 4% of anatase titanium dioxide, 4% of lithopone, 15% of 400 mesh wollastonite, 10% of 325 mesh quartz powder, 20% of pure acrylic emulsion Revacryl RC41-218, 40-80 mesh open-cell expanded perlite 12%, thickener Water 30.5%. The coating preparation process repeats the steps of Example 1.

[0046] Prepare a 1mm thick paint film on the asbestos cement board, and use the reverberation chamber method to detect the average sound absorption coefficient of 0.45.

[0047] The above-mentioned pure acrylic emulsion Revacryl RC41-218 was provided by Revacryl Co., Ltd., Malaysia. The emulsion has a solid content of 59-62%, an average particle size of 0.3 μm, a glass transition temperature of 20°C, and a minimum film-forming temperature of 11°C. above thickener The montmorillonite clay thickener provided by Elementis Corporation of the United States.

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PUM

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Abstract

The invention discloses a light-weight sound-absorbing coating and a preparation method thereof. The coating mainly uses acrylic emulsion with an average particle diameter of 0.15-0.5 μm as a binder, uses open-cell expanded perlite as a lightweight aggregate, and is supplemented with pigments. A combination of fillers and various additives. The paint is prepared by pre-mixing, dispersing, grinding pigments and fillers and letdown process. Open-cell expanded perlite is added in batches during the letdown stage and stirred at a low speed. The coating has low density, non-toxic and tasteless, safe and environment-friendly; it is easy to produce and construct, the thickness of the coating is 1-5mm, and the average sound absorption coefficient is greater than 0.4, which not only has good sound absorption performance, but also saves indoor space; the coating has no joints , Strong decoration, suitable for use on walls and ceilings inside living rooms, living rooms, conference rooms, general concert halls, theaters, great halls, large classrooms, and broadcasting studios.

Description

technical field [0001] The invention relates to an architectural coating and a preparation method thereof, more specifically, the invention relates to a light-weight sound-absorbing coating and a preparation method thereof. Background technique [0002] 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. There are many kinds of building sound-absorbing materials. At present, the most widely used ones in my country are gypsum decorative sound-absorbing panels, glass wool decorative sound-absorbing panels, rock (mineral) cotton decorative acoustic panels, perlite decorative acoustic panels, polystyrene Foam plastic decorative sound-absorbing panels, metal decorative sound-absorbing p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/02C09D5/32
Inventor 张伶俐王玉杰周子鹄李赉周
Owner GUANGZHOU SUPER CHEM COATING CO LTDGUANGZHOU SUPER CHEM COATING CO LTD
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