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Transparent intumescent flame-retardant epoxy resin fireproof coating and preparation method thereof

A technology of epoxy resin and fire retardant coating, applied in the field of fire retardant coating, can solve the problem of continuous spontaneous combustion limitation of flammability, etc., and achieve the effect of low temperature curable cost and excellent flame retardant performance

Inactive Publication Date: 2015-01-07
应急管理部四川消防研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The oxygen index of ordinary epoxy resin is only about 19.8. Its flammability and continuous spontaneous combustion after leaving the fire limit its application. Flame retardant modification is very necessary

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1, the preparation of halogen-free phosphate

[0026] Add 120g of phosphorus pentoxide into a 5L reaction bottle, add a small amount of water to dissolve it while stirring, add 100g of starch, heat up to 90°C while stirring, and keep it warm for 2 hours to obtain a light yellow viscous liquid, then stir and add 150g of melamine was incubated at 100°C for 3 hours, cooled, washed with water until nearly neutral, and dried to obtain a white solid product, which was pulverized into powder for later use.

Embodiment 2

[0027] Embodiment two, the preparation of the phosphoric acid ester containing amine

[0028] Mix phosphoric acid and ethylene glycol in a molar ratio of 3:1, react at room temperature for 30 minutes under stirring, raise the temperature to 40°C for 30 minutes, then raise the temperature to 80°C for 30 minutes, add hexamethylenetetramine (the molar ratio of it to phosphoric acid is 0.8:1), reacted at 80°C for 1 hour, cooled and pulverized into powder for later use.

Embodiment 3

[0030] 1. Preparation of fire retardant coating

[0031] Add active diluent and curing agent to epoxy resin, add pulverized halogen-free phosphate ester (prepared according to Example 1) and amine-containing phosphate ester (prepared according to Example 2) and disperse at high speed to obtain a fireproof coating. (concrete component mass ratio sees Table 1)

[0032] Table 1 Components of fire retardant coatings with different contents

[0033]

[0034] 2. Performance test

[0035] The performance test was carried out according to the method of test plate preparation and performance test in the comparative example, and the test results are shown in Table 2.

[0036] Table 2 Performance test results of each group of fire retardant coatings

[0037]

[0038] The results show that: when the composition of the fireproof coating is 10 parts by weight of epoxy resin, 0.9-1.2 parts by weight of diluent; 0.8-1.1 parts by weight of curing agent; 1-5 parts by weig...

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Abstract

The invention provides a transparent intumescent flame-retardant epoxy resin fireproof coating. The coating comprises components in parts by weight as follows: 10 parts of epoxy resin, 0.9-1.2 parts of a diluent, 0.8-1.1 parts of a curing agent, 1-5 parts of halogen-free phosphate ester and 2-9 parts of amine-containing phosphate ester. The fireproof coating is excellent in flame-retardant performance, capable of being cured at the low temperature and low in cost.

Description

technical field [0001] The invention relates to a fireproof coating, in particular to a transparent intumescent flame-retardant epoxy resin fireproof coating and a preparation method thereof. Background technique [0002] Epoxy resin is one of the most widely used film-forming substances in the coating industry. Its main features are excellent adhesion, good decoration and convenient construction. The oxygen index of ordinary epoxy resin is only about 19.8. Its flammability and continuous spontaneous combustion after leaving the fire limit its application, so flame retardant modification is very necessary. Most of the research reports on improving its fire resistance performance are studies on the P-C-N fire protection modification system. The P-C-N fire protection system is generally composed of small molecules such as ammonium polyphosphate, pentaerythritol, and melamine, and the total addition amount is about 80%, which has a great influence on the adhesion, decoration, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/18C07F9/09
CPCC07F9/091C07F9/093C08K5/521C08K2201/014C09D5/185C09D7/63C09D163/00
Inventor 王新钢李利君
Owner 应急管理部四川消防研究所