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Nano-, environment friendly, inorganic expansion type tunnel fire-proof paint and preparation method

A fire retardant coating, intumescent technology, applied in fire retardant coatings, cement coatings, etc., can solve the problems of unreported nano materials, limited fire resistance, inconvenient use, etc., to kill mosquito and fly negative ions, low product cost, increase The effect of negative ions

Inactive Publication Date: 2009-01-14
CHANGSHA KERICH SAFETY ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For tunnel fire retardant coatings, non-expandable coatings are mostly used in my country, and a few organic expansion coatings are used, but the fire resistance limit of non-expansive coatings is limited, and the coating is too thick; organic expansion coatings produce a lot of smoke when burned And poisonous gas, very inconvenient to use
[0003] Adding Nano-TiO to Water Glass 2 Difficult to realize, has been made clear by Zhang Li of East China University of Science and Technology etc. in November 2006 in the casting journal. At present, adding nanomaterials to water glass has not been reported.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] [Example 1] In a large plastic bowl, take melamine 5.0g, pentaerythritol 5.0g, organic silicon 1.0g, titanium dioxide 4.0g, CaCO 3 、AL(OH) 3 30.0g~40.0g, additive 4.0g, latex powder 2.0g, water glass 80.0g, stir well, add water glass to adjust the consistency until it can be sprayed, and get the ready-to-use paint.

[0022] Take the ready-to-use paint, add 20.0g of aluminate cement, add 3.0-5.0g of sodium fluorosilicate, add water glass to adjust the consistency until it can be sprayed. The knot is firm and the bottom coat is obtained.

[0023] [Example 2] Take the ready-to-use coating prepared in Example 1, add 3.0-5.0 g of sodium fluorosilicate, stir evenly, and immediately apply it on the primer layer. After the coating is basically self-leveling, remove an appropriate amount of zeolite on the surface, 2 ~ After 3 hours, it is initially cured, the bond is firm, and the middle coat is obtained.

[0024] [Example 3] In a large plastic bowl, take 20.0g of water glass...

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PUM

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Abstract

The invention relates to nano, environment-friendly and inorganic expanding type tunnel fire retardant coating and the preparation method. The coating is prepared by taking water glass as the main raw material, and matching with aluminate cement, organic and inorganic foaming agent, stuffing, additives and nano TiO2 photocatalyst and the like. The invention adopts that the aluminate cement is added to the base coating to increase the cohesive force; zeolite is added to the intermediate coating to reduce the noise; the pH value of the water glass of a finish coating is reduced to 10, and the nano TiO2 is added to prevent the chemical reaction between the water glass and the nano TiO2. The tunnel fire retardant coating has the advantages that the coating can usually purify the air, reduce the noise, prevent the mildew and perform self cleaning, the coating complys with the environmental protection, the fire resistance limit is high, basically no smoke and no toxic gas is produced during fire, and the normal operation of the firemen can not be affected.

Description

Technical field [0001] The invention relates to a tunnel fireproof coating, and more specifically relates to a nanometer, environment-friendly, inorganic expansion type tunnel fireproof coating and a preparation method. technical background [0002] For tunnel fire retardant coatings, non-expandable coatings are mostly used in my country, and a few organic expansion coatings are used, but the fire resistance limit of non-expansive coatings is limited, and the coating is too thick; organic expansion coatings produce a lot of smoke when burned And poisonous gas, it is very inconvenient to use. [0003] Adding Nano-TiO to Water Glass 2 Difficult to realize, has been made clear by Zhang Li of East China University of Science and Technology etc. in casting periodical in November, 2006, and adding nanometer material in water glass has no report at present. Contents of the invention [0004] In order to overcome the shortcoming of above-mentioned two kinds of fireproof coatings ...

Claims

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Application Information

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IPC IPC(8): C09D1/06C09D5/18
Inventor 徐志胜黄林冲石雪春倪天晓
Owner CHANGSHA KERICH SAFETY ENG TECH
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