Weather-resistant broadband sound-absorbing paint

A sound-absorbing coating and broadband technology, applied in the fields of environmental science and resource recycling, can solve the problems of limited sound-absorbing effect of the coating and the lack of connection, and achieve the effect of improving the comprehensive utilization rate, strong decoration and good fire resistance.

Active Publication Date: 2015-12-02
SHANGHAI ACADEMY OF ENVIRONMENTAL SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN1425720A (application number 03118445.6) discloses a sound-absorbing environmental protection coating, which uses fly ash floating beads as light aggregate to improve the sound absorption effect, but because the pores of the fly ash floating beads are closed and not connected, the Coatings have limited sound absorption

Method used

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  • Weather-resistant broadband sound-absorbing paint
  • Weather-resistant broadband sound-absorbing paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Weigh 90 kg of expansive cement, 9 kg of 100-mesh rubber particles, 1 kg of sodium alkylsulfonate and 2 kg of cement-based adhesive, add water, mix and stir evenly, and obtain a weather-resistant broadband sound-absorbing coating of the present invention, which can be used Used as exterior wall coating or made into concrete exterior wall hanging board.

Embodiment 2

[0027] Weigh 70 kg of expansive cement, 3.5 kg of 10-mesh rubber particles, 3 kg of sodium alkyl sulfate and 3 kg of cement-based adhesive, add water, mix and stir evenly, and obtain a weather-resistant broadband sound-absorbing coating of the present invention, which can be used as Exterior wall coating or made into concrete exterior wall cladding.

Embodiment 3

[0029] Weigh 80 kilograms of expanded cement, 16 kilograms of 50 mesh rubber particles, 2 kilograms of sodium alkylaryl sulfonate, 1 kilogram of silicone resin polyether emulsion and 2 kilograms of cement-based adhesive, add water and mix and stir evenly to obtain the A weather-resistant broadband sound-absorbing coating, which can be used as an exterior wall coating or made into a concrete exterior wall hanging board.

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Abstract

The invention relates to a weather-resistant broadband sound-absorbing paint which is prepared by mixing water with the following substances in parts by weight: 70-90 parts of cement, 5-20 parts of junked tire regenerated rubber elastic particle, 1-3 parts of foaming agent and 1-3 parts of adhesive. The particle size of the rubber particle is 10-100 meshes. The foaming agent is an anionic surfactant or a mixture of an anionic surfactant and a silicon resin polyether emulsion. The adhesive is a cement-base adhesive. The weather-resistant sound-absorbing material can be used as an external wall paint or prepared into a concrete external wall suspension plate. The sound-absorbing paint enhances the availability of the junked tire rubber from the angle of material regeneration, and has the advantages and characteristics of favorable sound-absorbing effect, favorable weather resistance, wide application range, simple and quick construction, high safety, environment friendliness and the like.

Description

technical field [0001] The invention relates to environmental science and resource recycling, in particular to a weather-resistant broadband sound-absorbing coating. Background technique [0002] With the development of society, the noise in the environment is getting bigger and bigger. The frequency characteristics of urban traffic noise are concentrated at around 500 Hz through the sound barrier and distance attenuation. But it is more obvious, and it is very easy to cause people's discomfort. Especially in big cities like Shanghai and Beijing, elevated roads shuttle between high-rise buildings, and low-frequency noise with long wavelengths is more likely to be reflected multiple times between buildings to form a low-frequency reverberation field, causing serious low-frequency noise pollution to the living environment of residents . A good outdoor acoustic environment in the city is the basic requirement for people to carry out outdoor activities, so reducing the noise ...

Claims

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Application Information

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IPC IPC(8): C09D1/08
Inventor 周裕德祝文英应乐惇张玮晨孙晓明夏丹储益萍王晓楠刘长卿
Owner SHANGHAI ACADEMY OF ENVIRONMENTAL SCIENCES
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