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Preparation method of flame-retardant and light-resistant paint

A light resistance and coating technology, applied in the direction of coating, etc., can solve the problems of synthetic material performance degradation, difficulty in dispersing, and restrictions on the direct application of red phosphorus, so as to improve light resistance and flame retardancy, good light resistance and char formation , good adsorption effect

Inactive Publication Date: 2015-07-01
LIAONING XIN XING ART COLOR TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the 1990s, the research on intumescent flame retardants gradually became active. It is recognized as one of the effective ways to realize the non-halogenation of flame retardants, but its use to improve the flame retardancy of acrylic resins has not been reported.
[0004] Due to the high phosphorus content of red phosphorus, its flame retardancy is very high, but as a flame retardant, red phosphorus has the following disadvantages: 1) Red phosphorus can easily absorb water in the air and generate phosphoric acid, phosphorous acid and metaphosphoric acid, etc. Substances, the surface of the product is corroded and loses luster and original performance, and slowly deepens to the inner layer; 2) The compatibility of red phosphorus and resin is poor, not only difficult to disperse, but also lead to a decline in the performance of synthetic materials; 3) When red phosphorus is in contact with the air for a long time, it will release highly toxic PH3 gas while generating phosphorus oxygen-containing acid, polluting the environment; the above shortcomings seriously limit the direct application of red phosphorus

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0020] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be further described below in conjunction with examples.

example 1

[0022] (1) Preparation of light-resistant intumescent flame retardant: Mix 28.7g of 4,4'-dichlorodiphenyl sulfone and 19.6g of phosphoric acid in a 250ml three-necked flask, and carry out stirring reaction at 70°C for 3h to obtain product A; Mix product A with 5 g of acrylamide and 2.5 g of melamine, and carry out a stirring reaction at 80 ° C for 2 hours to obtain product B;

[0023] (2) Preparation of red phosphorus dispersion: Add 10g of red phosphorus, 50g of water, 3g of methyl ethyl ketone, and 2g of polyacrylamide with a particle size of 40 mesh into a 100ml beaker. Under the condition of pH 7, the shear stirring speed is 700rpm, and the stirring time is 30min. , to obtain red phosphorus dispersion;

[0024] (3) Add 60g of water, 1.2g of sodium lauryl sulfate, and 1.5g of acrylic acid to the three-necked flask, raise the reaction temperature to 40°C, stir and mix for 15 minutes, add 9g of butyl acrylate, 7g of methyl methacrylate, and acrylic acid Ethyl ester 4g, emuls...

example 2

[0028] (1) Preparation of light-resistant intumescent flame retardant: Mix 28.7g of 4,4'-dichlorodiphenyl sulfone and 29.4g of phosphoric acid in a 250ml three-necked flask, and carry out a stirring reaction at 90°C for 5h to obtain product A ; Mix product A with 6.4 g of acrylamide and 5 g of melamine, and carry out a stirring reaction at 90 ° C for 4 hours to obtain product B;

[0029] (2) Preparation of red phosphorus dispersion: Add 10g of red phosphorus, 50g of water, 3g of dimethylformamide, 5g of polyacrylamide with a particle size of 100 mesh into a 100ml beaker, under the condition of pH 7, the shear stirring speed is 1200rpm , stirring time 60min, obtain red phosphorus dispersion liquid;

[0030] (3) Add 60g of water, 1.2g of sodium lauryl sulfate, and 1.5g of acrylic acid to the three-necked flask, raise the reaction temperature to 40°C, stir and mix for 15 minutes, add 9g of butyl acrylate, 7g of methyl methacrylate, and acrylic acid Ethyl ester 4g, emulsification...

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PUM

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Abstract

The invention discloses a preparation method of a flame-retardant and light-resistant paint. The method comprises the following steps: adding red phosphorous dispersion to an acrylate monomer and an emulsifier; forming a nuclear layer under the effect of an initiator; adding hydroxyethyl acrylate and home-made light-resistant intumescent flame retardants to the nuclear layer; carrying out chain polymerization; and forming a shell layer so as to obtain the flame-retardant and light-resistant paint. The paint can be applied to industrial corrosion prevention, ships and containers, metal protection, interior and exterior walls of buildings, and leather finishing.

Description

technical field [0001] The invention relates to a method for preparing a coating, in particular to a method for preparing a flame-retardant and light-resistant acrylic resin coating. Background technique [0002] Acrylic resin coatings are widely used in industrial anti-corrosion, ships and containers, metal protection, building walls and leather finishing, but the surface of acrylic materials tends to turn yellow under ultraviolet light, and acrylic resins are flammable. With the continuous improvement of people's living standards, people's awareness of fire prevention continues to increase, so light-resistant and flame-retardant acrylic resins have become an important research topic. [0003] Intumescent flame retardant (IFR) is a compound flame retardant mainly composed of nitrogen and phosphorus. It neither contains halogen nor uses antimony oxide as a synergist. This type of flame retardant foams when heated Intumescent, so it is called intumescent flame retardant, whi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/18C08F220/14C08F220/06C08F220/28C08F230/02C09D133/08C09D7/12
Inventor 周玉振段宝荣高龙宋宇
Owner LIAONING XIN XING ART COLOR TECH CO LTD
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