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Fireproof and mildew-proof environment-friendly coating used for tunnels

An environment-friendly, mildew-proof technology, applied in fire-resistant coatings, anti-fouling/underwater coatings, coatings, etc., can solve the problems of easy mildew, poor waterproof and anti-seepage of coatings, cracking of coatings, etc., and achieve the preparation process The effect of simple operation, excellent fireproof performance and broad application prospects

Inactive Publication Date: 2019-03-01
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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  • Fireproof and mildew-proof environment-friendly coating used for tunnels
  • Fireproof and mildew-proof environment-friendly coating used for tunnels

Examples

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Effect test

Embodiment 1

[0018] This embodiment provides a kind of environment-friendly fire-proof and mildew-proof coating for tunnels, which includes the following raw material components in parts by weight: 70 parts of alkyd resin, 30 parts of sodium silicate, 10 parts of polyacrylamide, glycidyl methacrylate 15 parts of ester, 25 parts of polyvinyl alcohol, 30 parts of shell powder, 30 parts of kaolinite, 20 parts of mica powder, 20 parts of vermiculite, 20 parts of pyrophyllite, 10 parts of zinc oxide, 10 parts of hokutou stone powder, 10 parts of charcoal powder , 15 parts of Moringa root powder, 15 parts of Polygonum grass powder, 10 parts of magnesium hydroxide, 8 parts of tangerine peel powder, 5 parts of hydroxypropyl methylcellulose, 2 parts of mineral oil defoamer, aluminate coupling 1.5 parts of agent, 70 parts of deionized 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 te...

Embodiment 2

[0026] This embodiment provides a kind of environment-friendly fire-proof and mildew-proof coating for tunnels, which includes the following raw material components in parts by weight: 75 parts of alkyd resin, 30 parts of sodium silicate, 15 parts of polyacrylamide, glycidyl methacrylate 18 parts of ester, 25 parts of polyvinyl alcohol, 35 parts of shell powder, 35 parts of kaolinite, 20 parts of mica powder, 20 parts of vermiculite, 20 parts of pyrophyllite, 15 parts of zinc oxide, 15 parts of hokutou stone powder, 10 parts of charcoal powder , 18 parts of Moringa root powder, 18 parts of Polygonum grass powder, 10 parts of magnesium hydroxide, 10 parts of tangerine peel powder, 7 parts of hydroxypropyl methylcellulose, 3 parts of mineral oil defoamer, aluminate coupling 2 parts of agent, 75 parts of deionized 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 tem...

Embodiment 3

[0034]This embodiment provides a kind of environment-friendly fire-proof and mildew-proof coating for tunnels, which includes the following raw material components in parts by weight: 75 parts of alkyd resin, 35 parts of sodium silicate, 15 parts of polyacrylamide, glycidyl methacrylate 18 parts of ester, 27 parts of polyvinyl alcohol, 35 parts of shell powder, 35 parts of kaolinite, 25 parts of mica powder, 25 parts of vermiculite, 25 parts of pyrophyllite, 15 parts of zinc oxide, 15 parts of hokutolite powder, 12 parts of charcoal powder , 20 parts of Moringa root powder, 20 parts of Polygonum grass powder, 15 parts of magnesium hydroxide, 10 parts of tangerine peel powder, 10 parts of hydroxypropyl methylcellulose, 4 parts of mineral oil defoamer, aluminate coupling 2 parts of agent, 75 parts of deionized 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 temper...

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Abstract

The invention provides a fireproof and mildew-proof environment-friendly coating used for tunnels, which is prepared by compounding raw materials according to a specific ratio; a special preparation process is employed, so that the raw materials are completely fused, and synergistic effect among the raw materials is achieved further, thereby achieving enhancement and complementation of properties.The raw materials include: alkyd resin, sodium silicate, polyacrylamide, glycidyl methacrylate, polyvinyl alcohol, shell powder, kaolin, mica powder, vermiculite, pyrophyllite, ZnO, hokutolite powder, charcoal powder, horseradish tree root powder, flaccid knotweed herb powder, Mg(OH)2, pericarpium citri reticulatae powder, hydroxypropyl methyl cellulose, a mineral oil defoaming agent, an aluminate coupling agent, deionized water and the like. The multifunctional coating is excellent in fireproof effect, adhesion force, acid and alkali resistance, weather resistance, waterproof effect and mildew-proof and antibacterial function.

Description

technical field [0001] The invention relates to the field of materials for tunnels, in particular to a fireproof and mildew-proof environment-friendly 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. , pr...

Claims

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Application Information

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IPC IPC(8): C09D4/02C09D4/06C09D5/14C09D5/18C09D7/61C09D7/65
CPCC09D4/06C09D5/14C09D5/18C09D7/61C09D7/65
Inventor 王羽张庆明王子豪叶国栋廖浩淼袁春娜
Owner CHONGQING JIAOTONG UNIVERSITY
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