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Tunnel fireproof paint based on nano-surface-treatment technology and method for making same

A technology of fire retardant coating and surface treatment, applied in the direction of fire retardant coating, coating, application, etc., can solve the problems of acid corrosion, tunnel inner wall pollution, performance degradation of tunnel fire retardant coating, etc.

Inactive Publication Date: 2004-11-10
XIAMEN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the environment in the tunnel is relatively closed, and it is difficult for the exhaust gas emitted by motor vehicles to escape, which will cause serious pollution and acid corrosion to the inner wall of the tunnel. However, some flame-retardant components in the tunnel fire-proof coating are alkaline oxides or hydroxides, which are resistant to long-term acid Under the action of corrosion, the performance of tunnel fireproof coatings may decrease

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: Preparation of tunnel fireproof coating. 26.0Kg of high-grade cement, 6.8kg of aluminum tripolyphosphate, 6.5Kg of water glass, 9.5Kg of expanded perlite, 7.5Kg of fly ash glass beads, 2.8Kg of mica powder, 4.5Kg of kaolin, 4.3Kg of aluminum silicate fiber, 19.6Kg of aluminum hydroxide and 18.5Kg of magnesium hydroxide were sequentially added to the mixer and mixed evenly, a small amount of water was added to infiltrate, and then 8.6Kg of acrylate polymer emulsion was added, and stirred evenly. Fire resistance performance of tunnel fireproof coating: coating thickness 10mm, fire resistance limit 180min; surface dry time: 3.0h; bonding strength: 0.48Mpa; density: 495Kg / m 3 ; Thermal conductivity: 0.114W / (m·k).

[0021] Preparation of nano-coatings with functional modification on the surface of tunnel fireproof coatings: Add 500g of solvent gasoline and 6g of organic bentonite into a high-speed disperser in sequence. After high-speed dispersion for 25 minut...

Embodiment 2

[0022] Embodiment 2 (preparation of fireproof coating is according to embodiment 1).

[0023] Manufacture of nano-coating with surface functional modification: Add 500g of solvent gasoline and 8g of organic bentonite into the high-speed disperser in sequence. After dispersing at high speed for 30 minutes, add 376g of modified amino resin, 94g of chlorinated rubber, and tributyl phosphate in batches 10g, after being fully dissolved and dispersed, transfer the material to an ultrasonic disperser, slowly add 6g of nano-silicon nitride modified by 0.16g of aminosilane, 3g of carbon nanotubes, and 3g of nano-titanium dioxide, and after ultrasonic vibration for 165 minutes, the Materials, packaging.

Embodiment 3

[0024] Embodiment 3 (expansion test, the preparation of fireproof coating is by embodiment 1, the manufacture of the nano-coating of tool surface functional modification is by the prescription of embodiment 2):

[0025] Manufacture of nano-coatings with surface functional modification: sequentially add 50Kg of solvent gasoline and 0.8Kg of organic bentonite to the high-speed disperser, and after high-speed dispersion for 30 minutes, add 37.6Kg of modified amino resin, 9.4Kg of chlorinated rubber, and phosphoric acid in batches Tributyl ester 1.0Kg, after being fully dissolved and dispersed, transfer the material to an ultrasonic disperser, slowly add 0.6Kg of nano-silicon nitride modified by 16g of aminosilane, 0.3Kg of carbon nanotubes, and 0.3Kg of nano-titanium dioxide, and ultrasonically After shaking for 165 minutes, discharge and pack.

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Abstract

The invention relates to a tunnel fire-resisting paint including fire-resisting paint and nano paint having surface functional properties modification, wherein the fire-resisting paint comprises silicate, phosphate adhesive, polymer emulsion, skeletal material, fortifying fiber and combustion inhibitor, while the nano paint having surface functional properties modification comprises non-flammable composite polymer base-material, composite nano material, nano material surface modifier, fire-retardant elasticizer, solvent gasoline and flowing deformation agent.

Description

(1) Technical field [0001] The invention relates to a tunnel fireproof coating and a manufacturing process thereof. (2) Background technology [0002] Tunnel fireproof coating is a kind of fireproof coating used in specific occasions. In the event of a fire, it plays a role in delaying the temperature rise of the reinforced concrete main structure in the tunnel, preventing the collapse of the tunnel caused by bursting and the loss of supporting capacity of the steel reinforcement in the lining. At the same time, the environment in the tunnel is relatively closed, and it is difficult for the exhaust gas emitted by motor vehicles to escape, which will cause serious pollution and acid corrosion to the inner wall of the tunnel. However, some flame-retardant components in the tunnel fire-proof coating are alkaline oxides or hydroxides, which are resistant to long-term acid Under the action of corrosion, the performance of the tunnel fireproof coating may be reduced. [0003] In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/18C09D13/00C09D131/04
Inventor 戴李宗黄晓平李阳庄勋港
Owner XIAMEN UNIV
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