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Preparation method of flame-retardant and light-resistant paint

A technology of light resistance and coating, applied in the coating and other directions, can solve the problems of the decline of the performance of synthetic materials, difficult to disperse, pollute the environment, etc. performance effect

Inactive Publication Date: 2013-12-11
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 is in the air It is easy to absorb water in the medium, generate phosphoric acid, phosphorous acid and metaphosphoric acid and other substances, so that 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 is it difficult to disperse, but it will also lead to a decline in the performance of synthetic materials; 3) Red phosphorus is in contact with the air for a long time, and at the same time as generating phosphorus oxyacids, it will release highly toxic PH3 gas, polluting the environment ; The above-mentioned 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 ways Below in conjunction with example further illustrate the present invention.

example 1

[0022] (1) Preparation of light-resistant intumescent flame retardant: Mix 28.7 g of 4,4'-dichlorodiphenyl sulfone and 19.6 g of phosphoric acid in a 250 ml three-neck flask, stir and react at 70°C for 3 hours 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, emulsification time...

example 2

[0027] (1) Preparation of light-resistant intumescent flame retardant: Mix 28.7g of 4,4'-dichlorodiphenylsulfone 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;

[0028] (2) Preparation of red phosphorus dispersion: Add 10g of red phosphorus, 50g of water, 3g of dimethylformamide, and 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;

[0029] (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, emulsificat...

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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 Applications(China)
IPC IPC(8): C08F220/18C08F220/14C08F220/06C08F220/28C08F230/02C09D133/08C09D7/12
Inventor 段宝荣高龙宋宇
Owner LIAONING XIN XING ART COLOR TECH CO LTD
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