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Preparation method of modified ultra-thin fire-resistant coating polymer matrix based on silsesquioxane

A technology of fire-resistant coatings and polymers, applied in the direction of fire-resistant coatings, epoxy resin coatings, coatings, etc., can solve the problems of no flame-retardant mechanism, toxic and harmful gases, research, etc.

Inactive Publication Date: 2009-12-09
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Previous studies on ultra-thin fire retardant coatings for steel structures only stopped at improving their preparation process, improving the ratio of various dehydration catalysts, charring agents and blowing agents, and did not conduct in-depth research on its flame retardant mechanism, and conventional fire retardant coatings The fuel will produce toxic and harmful gases under high temperature conditions

Method used

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  • Preparation method of modified ultra-thin fire-resistant coating polymer matrix based on silsesquioxane
  • Preparation method of modified ultra-thin fire-resistant coating polymer matrix based on silsesquioxane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Step 1. Mix 0.1phr of octaphenyl POSS and 1phr of phenolic resin matrix in a high-speed disperser for 1 hour, and add other additives according to the preparation method of conventional fireproof coatings.

Embodiment 2

[0030] Step 1. Mix 0.2phr of epoxy-based POSS and 1phr of epoxy resin matrix in a high-speed disperser for 6 hours, and add other additives according to the preparation method of conventional fireproof coatings.

Embodiment 3

[0032] Step 1. Mix 0.1phr of reactive silicon hydrogen based POSS and 1phr of acrylic resin in the reaction kettle evenly.

[0033] Step 2, adding 0.002phr of chloroplatinic acid catalyst, and reacting at room temperature for 5h. Add other additives according to the preparation method of conventional fireproof coatings.

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PUM

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Abstract

The invention relates to a method of POSS modified ultra-thin fire-resistant coating polymer matrix, and in the method, non-reactive POSS or reactive POSS is introduced in the polymer matrix by a physical or chemical method to form the real nanometer fire-retardant polymer matrix; the nanometer fire-retardant polymer matrix has good heat resistance in high temperature, and can form silicon oxygen compound which is deposited on the surface of unburned polymer after burning to form a protective layer, thus slowing the heat transfer to a certain extent, inhibiting the combustible gas from releasing, separating the mixture of the combustible gas and oxygen and improving the fire-retardant property.

Description

technical field [0001] The invention relates to a preparation method of a POSS-based ultra-thin steel structure fireproof coating polymer matrix. Common resin is used as the coating matrix, and silsesquioxane (POSS) is introduced into the matrix by chemical or physical methods, and then after conventional Steps such as batching, premixing, grinding and thinning are used to obtain POSS-based ultra-thin fireproof coatings for steel structures. Since POSS is a nano-scale particle, and the organic groups on it can be designed, a small amount of POSS can have a good high-temperature flame-retardant effect, so choosing POSS as a component of the flame retardant can get real meaning Fire-retardant nano-coating on the surface. Background technique [0002] Ultra-thin fire retardant coating is the most widely used fire retardant coating at home and abroad. Its characteristic is that it is an ordinary coating film at room temperature. The combustible spongy carbonaceous layer effect...

Claims

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Application Information

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IPC IPC(8): C08K5/549C08L33/00C08L61/06C08L23/28C08L61/20C08L63/00C08L83/00C09D133/00C09D161/14C09D123/28C09D161/32C09D163/00C09D183/00C09D5/18C09D7/12
Inventor 滕鑫孟庆洋
Owner EAST CHINA UNIV OF SCI & TECH
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