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Multifunctional coating for tunnels

A multi-functional, coating technology, applied in the direction of fireproof coatings, antifouling/underwater coatings, coatings, etc., can solve the problems of easy mildew, low coating bonding strength, coating cracking, etc., and achieve the preparation process operation The effect of simplicity, continuous and efficient production, and broad application prospects

Inactive Publication Date: 2019-02-26
CHONGQING JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The coatings used in tunnel construction are basically inorganic thermal insulation mortar thick-coated coatings. Although the coating has good fire resistance and heat insulation performance, it also has shortcomings that are difficult to overcome, such as poor waterproof and anti-seepage properties of the coating. , prone to mildew after mildew erosion, reduced adhesion, cracking and falling off of the coating, low bonding strength of the coating, weak resistance to strong airflow, wind pressure and resonance shock waves generated by high-speed driving, easy to Initiate coating cracks, etc.

Method used

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  • Multifunctional coating for tunnels

Examples

Experimental program
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Effect test

Embodiment 1

[0018] This embodiment provides a multi-functional coating for tunnels, which includes the following raw material components in parts by weight: 65 parts of silicon acrylic emulsion, 30 parts of lithium silicate, 10 parts of glycidyl methacrylate, 20 parts of polyvinyl alcohol, 30 parts of talcum powder, 30 parts of kaolinite, 20 parts of vermiculite, 20 parts of mica powder, 15 parts of pyrophyllite, 10 parts of jade powder, 10 parts of hokutou stone powder, 10 parts of seaweed powder, 10 parts of charcoal powder, Moringa root 15 parts of powder, 15 parts of hot Polygonum powder, 8 parts of zinc borate, 8 parts of tangerine peel powder, 5 parts of hydroxypropyl methylcellulose, 2 parts of mineral oil defoamer, 1.5 parts of aluminate coupling agent, deionized 60 parts of water.

[0019] In this embodiment, the root powder of Moringa oleifera is obtained by freeze-drying the root of Moringa oleifera and then ultrafine grinding at low temperature, with a particle size of 0.5-1 μ...

Embodiment 2

[0026] This embodiment provides a multifunctional coating for tunnels, which includes the following raw material components in parts by weight: 70 parts of silicon acrylic emulsion, 35 parts of lithium silicate, 10 parts of glycidyl methacrylate, 22 parts of polyvinyl alcohol, 35 parts of talcum powder, 35 parts of kaolinite, 20 parts of vermiculite, 25 parts of mica powder, 20 parts of pyrophyllite, 10 parts of jade powder, 12 parts of hokutou stone powder, 10 parts of seaweed powder, 12 parts of charcoal powder, Moringa root 18 parts of powder, 18 parts of hot Polygonum powder, 10 parts of zinc borate, 8 parts of tangerine peel powder, 8 parts of hydroxypropyl methylcellulose, 3 parts of mineral oil defoamer, 1.5 parts of aluminate coupling agent, deionized 65 parts of water.

[0027] In this embodiment, the root powder of Moringa oleifera is obtained by freeze-drying the root of Moringa oleifera and then ultrafine grinding at low temperature, with a particle size of 0.5-1 μ...

Embodiment 3

[0034]This embodiment provides a kind of multifunctional coating for tunnels, which includes the following raw material components in parts by weight: 70 parts of silicon acrylic emulsion, 35 parts of lithium silicate, 12 parts of glycidyl methacrylate, 22 parts of polyvinyl alcohol, 35 parts of talc powder, 35 parts of kaolinite, 25 parts of vermiculite, 25 parts of mica powder, 20 parts of pyrophyllite, 15 parts of jade powder, 15 parts of hokutou stone powder, 12 parts of seaweed powder, 12 parts of charcoal powder, Moringa root 20 parts of powder, 20 parts of hot Polygonum powder, 10 parts of zinc borate, 10 parts of tangerine peel powder, 10 parts of hydroxypropyl methylcellulose, 4 parts of mineral oil defoamer, 2 parts of aluminate coupling agent, deionized 65 parts of water.

[0035] In this embodiment, the root powder of Moringa oleifera is obtained by freeze-drying the root of Moringa oleifera and then ultrafine grinding at low temperature, with a particle size of 0....

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Abstract

The invention provides a multifunctional coating for tunnels; a silicone acrylic emulsion, lithium silicate, glycidyl methacrylate, polyvinyl alcohol, talcum powder, kaolinite, vermiculite, mica powder, pyrophyllite, jade powder, radiobarite powder, seaweed powder, charcoal powder, moringa oleifera root powder, flaccid knotweed herb powder, zinc borate, pericarpium citri reticulatae powder, hydroxypropyl methyl cellulose, a mineral oil defoamer, an aluminate coupling agent, deionized water and other raw material components are compounded according to the specific dosage relationship and combined with a specific preparation method; the raw material components can be fully fused, then the synergistic effect among the raw material components is played, the enhancement and complementarity in performance are realized, and the multifunctional coating for tunnels is prepared, wherein the coating has the advantages of excellent fire resistance, adhesion performance, acid and alkali resistance,weatherability, waterproof performance, and anti-mildew and anti-bacterial properties.

Description

technical field [0001] The invention relates to the field of materials for tunnels, in particular to a multifunctional coating for tunnels. Background technique [0002] The tunnel is a dusty, polluted environment with high relative humidity. The surface material of the inner wall of the tunnel is required to have functions such as easy cleaning, durability, fire resistance, and mildew resistance, so as to facilitate cleaning and maintenance, save energy and reduce consumption, and provide a safe driving environment. effect. At present, the surface materials of the inner wall of the tunnel are mainly paint and ceramic tiles. The coatings used in tunnel construction are basically inorganic thermal insulation mortar thick-coated coatings. Although the coating has good fire resistance and heat insulation performance, it also has shortcomings that are difficult to overcome, such as poor waterproof and anti-seepage properties of the coating. , prone to mildew after mildew erosi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/06C09D4/02C09D5/18C09D5/14C09D7/61C09D7/63C09D7/65
CPCC09D4/06C09D5/14C09D5/18C09D7/61C09D7/63C09D7/65C09D7/70
Inventor 王羽张庆明吴中正杨旋胡珍
Owner CHONGQING JIAOTONG UNIVERSITY
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