Acrylate copolymer, preparation method and application thereof

A technology of acrylate and copolymer, which is applied in the field of polymers, can solve the problems of easy hydrolysis, inability to realize environmental protection, flame retardancy, easy migration, etc., and achieve the effect of good flame retardancy

Pending 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

The adhesive is made of the following raw materials in parts by weight: 45 to 60 parts of modified hydroxyacrylic resin, 1 to 5 parts of butanone, 2 to 7 parts of trichloroethyl phosphate, 1 to 4 parts of p-tert-butylcatechol 3 parts, 3-7 parts of dicyandiamide, 2-6 parts of vinyltriethoxysilane, 12-18 parts of talcum powder, 4-9 parts of modified aluminum hydroxide; the inventive adhesive has good waterproof and flame-retardant properties , but it is prepared in the form of compounding, and it will be easily migrated or hydrolyzed during use or storage, and its molecules, decomposition products or dissolved products will enter the environment and pollute the environment, so it is impossible to achieve true environmental protection flame retardant

Method used

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  • Acrylate copolymer, preparation method and application thereof
  • Acrylate copolymer, preparation method and application thereof
  • Acrylate copolymer, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0088] A phosphorus-containing flame retardant with a vinyl group, the structure is as follows:

[0089]

[0090] Acryloyl chloride (purity 95%, 0.91g, 10mmol) of toluene (2mL) solution was reacted for 30min, then added 5mL of toluene, stirred at room temperature for 2h, and terminated the reaction by adding 10mL of water, the organic phase was extracted with diethyl ether, dried with magnesium sulfate, and The solvent was stripped off under vacuum to obtain a pale yellow solid.

[0091] 1 H NMR (CDCl 3 , 400MHz, TMS): δ=7.78(s, 1H, -CO-NH-), 7.50-7.70(dd, 2H, -C 6 h 4 -), 7.10-7.30 (dd, 2H, -C 6 h 4 -), 6.40-6.50 (m, 1H, -CH=), 5.60-6.00 (dd, 2H, -CH=), 3.95-4.08 (m, 4H, -O-CH 2 -), 3.07-3.14(s, 2H, -C 6 h 4 -C H 2 -), 1.20-1.40 (t, 6H, -CH 2 -C H 3 ).

preparation example 2

[0093] A phosphorus-containing flame retardant with a vinyl group, the structure is as follows:

[0094]

[0095] To a solution of diethyl 4-(amino)benzylphosphonate (1.94 g, 8 mmol) and triethylamine (0.87 g, 8.6 mmol) in toluene (7 mL) cooled to 0-5 °C was added dropwise methacryloyl chloride (0.9g, 8.6mmol) in toluene (9mL) was reacted for 30min, then 5mL of toluene was added, stirred at room temperature for 2h, and the reaction was terminated by adding 10mL of water, the organic phase was extracted with diethyl ether, dried with magnesium sulfate, and The solvent was stripped off under conditions to obtain a light yellow solid.

[0096] 1 H NMR (CDCl 3 , 400MHz, TMS): δ=7.80-7.90 (s, 1H, -CO-NH-), 7.50-7.70 (dd, 2H, -C 6 h 4 -), 7.10-7.30 (dd, 2H, -C 6 h 4 -), 5.80-5.90 (s, 1H, -CH=), 5.40-5.50 (s, 1H, -CH=), 3.95-4.08 (m, 4H, -O-CH 2 -), 3.07-3.18(s, 2H, -C 6 h 4 -C H 2 -), 2.00-2.20 (s, 3H, =C-CH 3 ), 1.20-1.40 (t, 6H, -CH 2 -C H 3 ).

preparation example 3

[0098] A phosphorus-containing flame retardant with a vinyl group, the structure is as follows:

[0099]

[0100] The preparation method is as follows:

[0101] Add 1 mol of diethyl phosphite and 1 mol of acrolein 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 1 mol of triethylamine dropwise, gradually raise the temperature to 50°C, and continue After reacting for 0.5h, the phosphorus-containing flame retardant of the above structure was obtained by distillation under reduced pressure.

[0102] 1 H NMR (400MHz, DMSO-d6): δ=5.86-5.90 (m, 1H, =CH-), 5.27-5.39 (m, 2H, CH 2 =), 5.10-5.12 (m, 1H, -OH), 4.15-4.22 (m, 1H, -CH-), 3.87-4.02 (m, 4H, -CH 2 -), 1.24-1.28(t, 6H, -CH 3 ).

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Abstract

The invention provides an acrylate copolymer, a preparation method and application thereof. The acrylate copolymer comprises acrylate, methacrylic acid, an initiator and a phosphorus-containing flameretardant with a structure as shown in a formula I, and has relatively good flame retardant property and flame retardant stability on the premise of having proper bonding strength and flexibility. According to the invention, a phosphorus-containing flame retardant is creatively used as a polymer monomer, and a flame retardant group is grafted into an acrylate copolymer in the form of a stable chemical bond, so that the acrylate copolymer has better flame retardancy, the flame retardant is prevented from being separated out in the form of small molecules in the reuse process, the phenomena thatthe flame retardant is dissolved in water to be separated out or hydrolyzed and the like are avoided, and efficient environment-friendly flame retardance is truly achieved; and the acrylate copolymerhas the advantages of simple preparation method, accessible raw materials, low price and wide industrial application prospects, and is convenient to implement.

Description

technical field [0001] This field relates to the field of polymers, and relates to an acrylate copolymer and its preparation method and application. Background technique [0002] At present, plastic adhesives mainly include acrylate adhesives, polyurethane adhesives, SDS adhesives, and chlorinated polypropylene-based adhesives. Acrylic adhesives have good performance in terms of hue, heat resistance, and weather resistance, so they are widely used Adhesives for plastics, but during transportation, use and storage of acrylic adhesives, accidents of acrylate copolymers caused by open flames, static electricity or impacts have occurred frequently, which greatly limits the use of acrylic adhesives. The flame retardant properties of ester adhesives are very meaningful; the most commonly used method to improve acrylate adhesives is to increase the bonding performance of acrylate adhesives through compounding. [0003] CN109280497A discloses a flame-retardant flocking adhesive, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F220/06C08F230/02
CPCC08F220/18
Inventor 潘庆崇
Owner GUANGDONG GUANGSHAN NEW MATERIALS CO LTD
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