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Room temperature solidified expansion type fire retardant coating and method for preparing the same

A fire retardant coating, room temperature curing technology, used in fire retardant coatings, epoxy resin coatings, coatings, etc., can solve the problem of chemical corrosion resistance, water resistance and solvent resistance, coating loss of fire resistance, film-forming material force Poor and other problems

Inactive Publication Date: 2011-03-09
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the current intumescent fire retardant coatings use acrylic resin, polyvinyl acetate, etc. Chemical intumescent flame retardants, which have poor interaction with film-forming substances, are easy to migrate out of the coating, causing the coating to lose its fireproof function. Toxic and harmful substances produced

Method used

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  • Room temperature solidified expansion type fire retardant coating and method for preparing the same
  • Room temperature solidified expansion type fire retardant coating and method for preparing the same
  • Room temperature solidified expansion type fire retardant coating and method for preparing the same

Examples

Experimental program
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Effect test

Embodiment 1

[0015] Example 1: Coating formulation such as figure 1 shown.

[0016] Preparation:

[0017] Add 20 parts of epoxy resin E-44 and 70 parts of a mixed dispersant of absolute ethanol and acetone into the container, stir mechanically for 5 minutes at room temperature, so that all the epoxy resin is dissolved in the dispersant, and then add 10 parts of n-butyl alcohol, and stir evenly to obtain the component A of the coating;

[0018] Take another container, add 25 parts of xy-200 water-based epoxy curing agent and 75 parts of water, stir mechanically for 5 minutes at room temperature, so that the water-based epoxy curing agent is completely dissolved in water to obtain coating component B;

[0019] Take 30 parts of expanded graphite and 70 parts of cement and mix them evenly to prepare component C of the coating

[0020] The components A, B, and C of the coating are mixed in a ratio of 1:0.5:0.7, and mechanically stirred evenly at normal temperature to prepare a new type of in...

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Abstract

The invention discloses a room temperature solidified expansion type fire retardant coating and method for preparing the same, which is composed of components A, B and C. Component A is epoxy resin dispersion. Component B is waterborne curing agent dispersion. Component C is the mixture of flame retardant and filler. Component A comprises, by weight, 15-25% of epoxy resin and 60-70% of dispersant. The above three components are mixed up in a proportion of 1:(0.5-0.7):(0.7-1).Epoxy resin is used as the film-forming substance, while expandable graphite and perlite, which are physical expanding flame retardants, are used as flame retardants and cement as the filler. The above coating has the advantages of obvious fireproof effect, good bond property with the base material and few harmful substances or smoke generated when exposed to fire or in a strong thermal event. In addition, flame retardants can not easily migrate from the coating.

Description

technical field [0001] The present invention relates to coatings, in particular to the field of manufacture of intumescent fireproof coatings suitable for masonry, concrete and metal surfaces. Background technique [0002] Fire retardant coating refers to a class of substances that are applied to the surface of flammable substrates to reduce the flammability of the substrate surface, retard the rapid spread of flames on the surface of the substrate, or apply to the surface of structural materials to improve the fire resistance of components. According to the different combustion characteristics of fire retardant coatings, fire retardant coatings can be divided into non-intumescent fire retardant coatings and intumescent fire retardant coatings. Non-intumescent fire retardant coatings are usually based on silicate or water glass, mixed with flame retardant or non-combustible substances. When it is exposed to fire or strong heat, the coating basically does not change its volu...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D163/02C09D7/12C09D5/18
Inventor 赵乘寿张思清汪鹏陈俊敏
Owner SOUTHWEST JIAOTONG UNIV
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