High-viscosity flame-retardant environmentally-friendly pressure-sensitive adhesive and preparation method thereof, and pressure-sensitive adhesive film preparation method

A pressure-sensitive adhesive and environmental protection technology, which is applied in the preparation of pressure-sensitive adhesive films, high-viscosity, flame-retardant and environmentally-friendly pressure-sensitive adhesives and preparation fields, can solve the problems of easy safety, poor stickiness, and limited application scope, etc. To achieve the effect of improving the flame retardant effect

Inactive Publication Date: 2020-01-14
深圳市益达兴科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Pressure-sensitive adhesives are pressure-sensitive adhesives. Pressure-sensitive adhesives are high-molecular polymers that can be firmly combined with adherends without the use of solvents, heat or other means. They are widely used in Electronics, electrical appliances, automobiles, machinery, aerospace, light industry, medical care, family life and many other fields, but because pressure-sensitive adhesives are mostly acrylic polymers, they are extremely flammable and easily bring safety hazards, which limits their application range ;
[0003] In the invention patent with the patent application number 201410109500.9 titled a halogen-free flame-retardant pressure-sensitive adhesive and its preparation method, it is prepared by physically mixing a pressure-sensitive adhesive and a flame retardant. The flame retardant adhesives of traditional Chinese medicines o

Method used

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  • High-viscosity flame-retardant environmentally-friendly pressure-sensitive adhesive and preparation method thereof, and pressure-sensitive adhesive film preparation method
  • High-viscosity flame-retardant environmentally-friendly pressure-sensitive adhesive and preparation method thereof, and pressure-sensitive adhesive film preparation method
  • High-viscosity flame-retardant environmentally-friendly pressure-sensitive adhesive and preparation method thereof, and pressure-sensitive adhesive film preparation method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0048] The preparation method of the high-viscosity flame-retardant environment-friendly pressure-sensitive adhesive of the present embodiment includes:

[0049] S1: Divide the organic solvent into two parts in a ratio of 3:1;

[0050]S2: add acrylate monomer and organic solvent with a large amount to the reaction vessel, and stir at a speed of 150-250r / min;

[0051] S3: feed nitrogen into the reaction vessel, and set the temperature to 80-90 degrees Celsius;

[0052] S4: Dissolve the initiator into a small amount of organic solvent to form an initiator solution, and slowly drop the initiator solution and the phosphorus-containing active monomer into the reactor, keeping the dropping time for 2-3h;

[0053] S5: wait for the reaction for 1-2 hours, cool down to 40 degrees Celsius, adjust the stirring speed to 800-1200r / min, and add a high-efficiency composite flame retardant and disperse it uniformly;

[0054] S6: Add a curing agent and stir evenly to obtain a high-viscosity ...

Example Embodiment

[0059] Embodiment 1: add 5g methyl acrylate, 25g butyl methacrylate, 2g acrylic acid and 12.5g ethyl acetate, 10g methyl butyl ketone to the reactor, open nitrogen, start stirring, and the stirring speed is 150 rev / min , heat up to 80 ℃, slowly add 5g hydroxyethyl acrylate, 0.5g benzoyl peroxide and 7.5g ethyl acetate solvent dropwise, the dropping time is 2 hours, continue to react for 2 hours after dropping, cool down to 40°C, increase the stirring speed to 800 r / min, add 15g ammonium polyphosphate, 5g trimethyl phosphite, stir and disperse for 20 minutes, add 0.5g triethylenetetramine curing agent, that is, a high viscosity flame retardant environmental protection type is obtained Pressure-sensitive adhesive products.

Example Embodiment

[0060] Embodiment 2: add 10g ethyl methacrylate, 15g butyl acrylate, 5g methylol acrylamide and 20g ethyl acetate, 10g N,N-dimethylformamide into the reactor, open nitrogen, start stirring, stir The speed is 250 r / min, the temperature is raised to 90°C, and 10g of 2-ethyl (methacrylate acyloxymethyl) phosphate, 2g of dicumyl peroxide and 10g of ethyl acetate solvent are slowly added dropwise, and the dropwise addition time is 3 hours, continue to react for 1 hour after dripping, cool down to 40 ° C, increase the stirring speed to 1200 rpm, add 5g triethyl phosphate, 5g aluminum hydroxide, stir and disperse for 30 minutes, add 2g methylene bisphenyl diphenyl Amine curing agent, that is, a high-viscosity flame-retardant environmentally friendly pressure-sensitive adhesive product is obtained.

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PUM

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Abstract

The invention discloses a high-viscosity flame-retardant environmentally-friendly pressure-sensitive adhesive and a preparation method thereof, and a pressure-sensitive adhesive film preparation method, wherein the pressure-sensitive adhesive comprises: 5-10 parts of an acrylate hard monomer, 15-25 parts of an acrylate soft monomer, 2-5 parts of an acrylate functional monomer, 5-10 parts of a phosphorus-containing active monomer, 0.5-2 parts of an initiator, 30-40 parts of an organic solvent, 10-20 parts of an efficient composite flame retardant and 0.5-2 parts of a curing agent. According tothe invention, the pressure-sensitive adhesive is prepared by a chemical synthesis and physical compounding method; and the pressure-sensitive adhesive polymer with high adhesion and a certain flame-retardant effect is synthesized by selecting the quantitative acrylate monomers and the phosphorus-containing functional monomer with flame-retardant effect, and various environmentally-friendly efficient flame retardants are added in the later period of synthesis, so that the flame-retardant effect is improved through the synergistic interaction mechanism, the pressure-sensitive adhesive has characteristics of high adhesiveness, high-temperature persistent adhesivity and remarkable flame-retardant effect, the flame-retardant grade reaches the Vo grade, and the processing requirements of electronic industry for fixing, bonding and the like are met.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to a high-viscosity flame-retardant and environment-friendly pressure-sensitive adhesive, a preparation method thereof, and a preparation method of a pressure-sensitive adhesive film. Background technique [0002] Pressure-sensitive adhesives are pressure-sensitive adhesives. Pressure-sensitive adhesives are high-molecular polymers that can be firmly combined with adherends without the use of solvents, heat or other means. They are widely used in Electronics, electrical appliances, automobiles, machinery, aerospace, light industry, medical care, family life and many other fields, but because pressure-sensitive adhesives are mostly acrylic polymers, they are extremely flammable and easily bring safety hazards, which limits their application range ; [0003] In the invention patent with the patent application number 201410109500.9 titled a halogen-free flame-retardant pressure-sensitive adhe...

Claims

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Application Information

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IPC IPC(8): C09J133/10C09J133/08C09J11/04C09J11/06C09J7/10C09J7/38C08F220/18C08F220/14C08F220/06C08F230/02C08F220/58C08F220/32
CPCC08F220/18C08K2003/2227C08K2003/323C08K2003/387C09J11/04C09J11/06C09J143/02C09J7/10C09J7/385C08K3/32C08K5/524C08K5/521C08K3/22C08K5/523C08K5/34928C08K3/38
Inventor 胡文光樊勤海樊秋实魏彦龙
Owner 深圳市益达兴科技股份有限公司
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