Water-based waterproof coating with heat insulation and sound insulation functions and preparation method thereof

Abstract

The invention discloses a water-based waterproof coating with heat insulation and sound insulation functions. The water-based waterproof coating is prepared from a liquid material and a powder material in a weight ratio of 1:(3-5), wherein the liquid material is prepared from the following raw materials in parts by weight: 25 to 30 parts of styrene-acrylic emulsion I, 25 to 30 parts of styrene-acrylic emulsion II, 0.10 to 0.20 part of a preservative, 0.20 to 0.30 part of a dispersing agent, 0.10 to 0.20 part of a defoaming agent and 40 to 50 parts of deionized water; wherein the powder material is prepared from the following raw materials in parts by weight: 35 to 55 parts of cement, 35 to 45 parts of quartz sand, 1 to 5 parts of quartz powder, 10 to 15 parts of a modified thermal insulation material, 5 to 10 parts of a modified sound insulation material, 0.02 to 0.05 part of cellulose ether and 0.4 to 0.5 part of a water reducing agent. The invention also discloses a preparation method of the waterproof coating, and the coating has waterproof, heat-insulating and sound-insulating functions by adding the sound-insulating and heat-insulating functional components and fusing the cement and the two styrene-acrylic emulsions with good compounding property.

Description

technical field [0001] The invention relates to the technical field of functional environmental protection coatings, in particular to a water-based waterproof coating with heat and sound insulation functions and a preparation method thereof. Background technique [0002] In recent years, urban underground space has been developed and applied on a large scale, and a large number of underground civil air defense projects have been repaired and restored. The waterproofing of these occasions should be based on the principle of "combining rigidity and flexibility, and multi-channel fortification". However, many manufacturers unilaterally expand rigid waterproof materials (such as : watertight, cement-based permeable crystalline waterproof materials, etc.) application range, applied to the waterproof construction of the backside and frontside of underground engineering. Through the practical application of engineering, it is found that the biggest disadvantage of rigid waterproof ...

AI Technical Summary

Problems solved by technology

Through the practical application of engineering, it is found that the biggest disadvantage of rigid waterproof materials is that they have no flexibility and poor crack resistance. When there are micro cracks in the wall or vibration caused by decoration and knocking, they are easy to crack, resulting in poor impermeability, and basically no sound insulation and heat insulation. effect, it cannot effectively protect the materials inside the civil air defense project

The method of widely using waterproofing agent to block the pores of concrete has played a certain role in reducing the defects of concrete and cement mortar, but because the internal structure of the material has not been changed, the waterproof effect is not ideal, especially as an independent waterproofing method. layer cannot meet the requirements of building waterproofing

At present, ordinary waterproof paste has no heat insulation and sound insulation effects, which is unfavorable for the normal use of the interior space of civil air defense projects. Water-based waterproof slurry

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