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Alkyd resin composition, preparation method and application thereof

A technology of alkyd resin and composition, applied in the field of alkyd resin composition and preparation thereof, can solve the problems of reduced flame retardant performance, no mention of flame retardant performance, environmental damage, etc., and achieve the effect of improving hardness and insulating performance

Active Publication Date: 2021-03-12
GUANGDONG GUANGSHAN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Alkyd resin is one of the largest and most widely used synthetic resins used in coatings. It can be used to prepare self-drying paint, baking paint, civil paint and industrial paint, etc., but the commonly used alkyd resin is flammable and The obtained coatings also do not have flame retardant properties; in recent years, with the development of society and the improvement of people's living standards, there are higher and higher requirements for materials, and the flame retardant properties have also attracted more and more attention. The most common way to increase the flame retardancy of alkyd resins is to add flame retardants, but it is necessary to consider the compatibility of flame retardants and alkyd resins, and whether the flame retardants are easy to dissolve under the action of water or other organic solvents , thus causing a certain degree of damage to the environment, and it will progress over time, and the flame retardancy of the material will decrease, which will affect subsequent use and safety issues
[0003] CN107974176A discloses a kind of alkyd resin exterior wall coating, and proportioning by weight is as follows: 80-100 parts of chlorinated rubber modified alkyd resin, 20-40 parts of phenolic epoxy resin, 15-25 parts of turpentine, KH- 20-30 parts of 570 modified titanium dioxide, 10-20 parts of butanone, 8-13 parts of plasticizer, 20-30 parts of nickel sulfamate, 15-30 parts of shellac, 60-80 parts of deionized water, chlorine 12-25 parts of wax resin, 10-15 parts of ammonium bicarbonate, 5-10 parts of antifungal agent, 30-40 parts of calcium carbonate, 65-80 parts of ethyl acetate, 10-20 parts of fire retardant; the obtained phenolic resin coating It has good water resistance, weather resistance and corrosion resistance, but it does not mention that it has good flame retardancy
[0004] CN109082232A discloses a flame-retardant alkyd resin insulating varnish, which is obtained by reacting the following raw materials in parts by mass: 100-200 parts of unsaturated alkyd resin, 40-150 parts of vinyl toluene, 1 peroxide initiator ~4 parts, 200~500 parts of aliphatic hydrocarbon solvent oil, 1~3 parts of drier; Among them, the unsaturated alkyd resin is prepared by the reaction of the following mass parts: 40~100 parts of dibasic acid, 40 parts of fatty acid ~150 parts, 30~60 parts of polyols, 20~40 parts of hydroxyl-containing cyclotriphosphazene derivatives; the present invention improves alkyd resin by adding hydroxyl cyclotriphosphazene derivatives and vinyltoluene, and the prepared The alkyd resin paint has stable flame retardant performance, high insulation, and the best three-proof (moisture-proof, mildew-proof, salt spray) effect, but the stability of the alkyd resin still needs to be further improved

Method used

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  • Alkyd resin composition, preparation method and application thereof
  • Alkyd resin composition, preparation method and application thereof
  • Alkyd resin composition, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0095] A phosphorus-containing flame retardant with the following structure:

[0096]

[0097] The preparation method is as follows:

[0098] Put 1mol of 1,4-benzoquinone, 0.5mol of water and 1mL of toluene into a three-port 20mL glass reactor with a stirring device, add 1mol of diethyl phosphite under a nitrogen atmosphere, react at 80°C for 24h, and remove the toluene by rotary evaporation , and then use a silica gel column to separate the product to obtain the phosphorus-containing flame retardant of the above structure in the form of yellow oil.

[0099] 1 H NMR (CDCl 3 ,400MHz,TMS):δ=9.32-9.36(s,1H,-OH),7.24-7.26(br,1H,-OH),6.98-7.25(m,1H,H of the benzene ring close to P),6.67- 6.88(m, 2H, H of benzene ring), 3.97-4.17(m, 4H, -CH 2 ),1.28-1.32(t,6H,-CH 3 ).

preparation example 2

[0101] A phosphorus-containing flame retardant with the following structure:

[0102]

[0103] The preparation method is as follows:

[0104] Put 1mol diethanolamine, 1mol hydroxymethyl dimethyl phosphite, 500mL ethanol, 0.1mol sodium hydroxide and 0.1g DMAP into a three-port 2000mL glass reactor with a stirring device, heat up to ethanol reflux, and react for 24 hours under stirring. After the completion, it is washed with water until neutral, and impurities are removed to obtain the phosphorus-containing flame retardant with the above structure.

[0105] 1 H NMR (400MHz, DMSO-d6): δ=4.26-4.28(t,2H,-OH),3.63-3.66(m,4H,-N-CH 2 -C H 2 -OH),3.47-3.49(d,6H,-P-O-CH 3 ),2.82-2.84(d,2H,-P-C H 2 -)2.53-2.55(t,4H,-N-C H 2 -CH 2 -OH).

preparation example 3

[0107] A phosphorus-containing flame retardant with the following structure:

[0108]

[0109] The preparation method is as follows:

[0110] Add 2 mol of dimethyl phosphite and 1 mol of glyoxal into a three-necked flask equipped with magnetic stirring and a thermometer. Under stirring, control the temperature in an ice-water bath below 5°C, add 2 mol of triethylamine dropwise, and gradually raise the temperature to 50°C. The reaction was continued for 1 h, and the phosphorus-containing flame retardant of the above structure was obtained by distillation under reduced pressure.

[0111] 1 H NMR (400MHz, DMSO-d6): δ=6.20-6.22(d,2H,-OH),3.70-3.76(m,2H,-CH-),3.48-3.52(d,12H,-P-O-CH 3 ).

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Abstract

The invention discloses an alkyd resin composition, a preparation method and application thereof. The alkyd resin composition comprises anhydride, tricyclic diterpene resin acid, epoxy resin, an initiator, a catalyst and a phosphorus-containing flame retardant with a structure shown in a formula I. According to the invention, the phosphorus-containing flame retardant is connected with acid anhydride through tricyclic diterpene resin acid by chemical bonds, and epoxy resin is added, so that the obtained alkyd resin composition has higher hardness and better flame retardance, cannot be separatedout due to migration of small molecules, cannot be separated out due to high solubility in water, and is environment-friendly, safe and harmless; and the alkyd resin composition has the advantages ofsimple preparation method, low price and accessible raw materials, and is suitable for industrial large-scale production and application.

Description

technical field [0001] The invention belongs to the field of polymer materials, and relates to an alkyd resin composition and a preparation method and application thereof. Background technique [0002] Alkyd resin is one of the largest and most widely used synthetic resins used in coatings. It can be used to prepare self-drying paint, baking paint, civil paint and industrial paint, etc., but the commonly used alkyd resin is flammable and The obtained coatings also do not have flame retardant properties; in recent years, with the development of society and the improvement of people's living standards, there are higher and higher requirements for materials, and the flame retardant properties have also attracted more and more attention. The most common way to increase the flame retardancy of alkyd resins is to add flame retardants, but it is necessary to consider the compatibility of flame retardants and alkyd resins, and whether the flame retardants are easy to dissolve under ...

Claims

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Application Information

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IPC IPC(8): C08L67/08C08L63/00C08G63/692
CPCC08L67/08C08G63/692C08L2205/025C08L2205/03C08L2201/02C08L63/00
Inventor 潘庆崇
Owner GUANGDONG GUANGSHAN NEW MATERIALS CO LTD
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