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A polymer cement-based waterproof coating with photocatalytic function and its application

A waterproof coating and polymer technology, applied in radiation-absorbing coatings, reflective/signal coatings, coatings, etc., can solve the problem of low tensile strength and bonding strength of the substrate, poor UV aging resistance, poor waterproof effect, etc. Problems, to achieve the effect of shortening the construction period

Active Publication Date: 2019-03-15
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in practical applications, although the currently used polymer cement-based waterproof coatings use organic-inorganic materials to obtain a combination of rigidity and flexibility, they are susceptible to 280-400nm ultraviolet rays (the wavelength range is 190-400, of which 190-280nm is short-wave area, blocked by ozone) damage, poor UV aging resistance, the matrix itself does not have the ability to shield ultraviolet rays, and the matrix tensile strength and bonding strength are low, and the waterproof effect is not good

Method used

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  • A polymer cement-based waterproof coating with photocatalytic function and its application

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Embodiment 1

[0032] A polymer cement-based waterproof coating with photocatalytic function, which is composed of an inner coating and an outer coating;

[0033] The inner coating is prepared from the following raw materials in parts by weight: 45.00 parts of emulsion, 20.00 parts of rapid-hardening sulfoaluminate cement, rutile nano-TiO 2 4.00 parts, 12.00 parts of silicon dioxide, 8.00 parts of calcium hydroxide, 0.05 parts of dispersant, 0.30 parts of film-forming aid, 0.10 parts of preservative, 0.50 parts of defoamer, 5.00 parts of water;

[0034] The outer coating is made from the following raw materials in parts by weight: 45.00 parts of emulsion, 20.00 parts of rapid hardening sulfoaluminate cement, anatase nano-TiO 2 2.00 parts, 12.00 parts of silicon dioxide, 8.00 parts of calcium hydroxide, 0.05 parts of dispersant, 0.30 parts of film-forming aid, 0.10 parts of preservative, 0.50 parts of defoamer, and 5.00 parts of water.

[0035] As mentioned, rutile nano-TiO 2 The particle s...

Embodiment 2

[0047] A polymer cement-based waterproof coating with photocatalytic function, which is composed of an inner coating and an outer coating;

[0048] The inner coating is made from the following raw materials in parts by weight: 50.00 parts of emulsion, 18.00 parts of rapid hardening sulfoaluminate cement, rutile nano-TiO 2 3.00 parts, 15.00 parts of silicon dioxide, 5.00 parts of calcium hydroxide, 0.07 parts of dispersant, 0.2 parts of film-forming aids, 0.08 parts of preservatives, 0.30 parts of defoamers, 6.00 parts of water;

[0049] The outer coating is prepared from the following raw materials in parts by weight: 50.00 parts of emulsion, 18.00 parts of rapid hardening sulfoaluminate cement, anatase nano-TiO 2 1.00 parts, 16.00 parts of silicon dioxide, 5.00 parts of calcium hydroxide, 0.07 parts of dispersant, 0.20 parts of film-forming aid, 0.08 parts of preservative, 0.30 parts of defoamer, 6.00 parts of water.

[0050] As mentioned, rutile nano-TiO 2 The particle siz...

Embodiment 3

[0061] A polymer cement-based waterproof coating with photocatalytic function, which is composed of an inner coating and an outer coating;

[0062] The inner coating is made from the following raw materials in parts by weight: 55.00 parts of emulsion, 15.00 parts of rapid hardening sulfoaluminate cement, rutile nano-TiO 2 1.00 parts, 18.00 parts of silicon dioxide, 2.00 parts of calcium hydroxide, 0.08 parts of dispersant, 0.10 parts of film-forming aid, 0.05 parts of preservative, 0.10 parts of defoamer, 8.00 parts of water;

[0063] The outer coating is made from the following raw materials in parts by weight: 55.00 parts of emulsion, 15.00 parts of rapid hardening sulfoaluminate cement, anatase nano-TiO 2 0.20 parts, 18.00 parts of silicon dioxide, 2.00 parts of calcium hydroxide, 0.08 parts of dispersant, 0.10 parts of film-forming aid, 0.05 parts of preservative, 0.10 parts of defoamer, and 8.00 parts of water.

[0064] As mentioned, rutile nano-TiO 2 The particle size ...

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Abstract

The invention discloses a polymer cement-based waterproof coating with a photocatalytic function. The polymer cement-based waterproof coating consists of an inner layer coating and an outer layer coating. The invention also discloses a preparation method of the polymer cement-based waterproof coating. By adopting the polymer cement-based waterproof coating, the construction period can be greatly shortened, the surface drying time is finally reduced by 1 to 3 h, and the actual drying time is reduced by 2 to 4 h. Nano TiO2 is used as an ultraviolet shielding agent, a double-layer material is formed by utilizing the different particle size and crystal forms, the inner layer large-particle-size rutile-type nano TiO2 reflects the ultraviolet rays, and the outer layer small-particle-size anatase-type nano TiO2 absorbs the ultraviolet rays, so that the anti-aging performance of the coating is significantly improved.

Description

technical field [0001] The invention relates to the field of waterproof materials, in particular to a polymer cement-based waterproof coating with photocatalytic function and its application. Background technique [0002] In recent years, water leakage incidents have occurred frequently due to poor waterproofing of underground structures and buildings. Leakage in buildings not only adversely affects the living environment of residents, but also corrodes the steel bars in the concrete, thereby destroying the integrity of the concrete structure, thereby affecting the stability and service life of the main structure. Therefore, doing a good job of waterproofing the building will not only bring a comfortable living environment to the residents, but also be particularly important to the service life of the main structure. [0003] Polymer cement-based waterproof coatings in waterproof coatings are composed of emulsions synthesized by various water-based polymers and high-quality...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D131/04C09D125/14C09D5/32C09D5/33C09D7/61C09D7/63
CPCC08K3/34C08K3/36C08K5/3447C08K13/02C08K2003/2206C08K2003/2241C08K2201/003C09D5/004C09D5/32C09D7/61C09D7/63C09D125/14C09D131/04C09D133/04
Inventor 赵丕琪王晗芦令超王守德程新
Owner UNIV OF JINAN
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