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Preparation method and application of high solid content low viscosity acrylic resin adhesive

An acrylic resin, high solid content technology, used in adhesives, adhesive types, ester copolymer adhesives, etc., can solve the problem that the production efficiency cannot be improved faster, the surface state is prone to bubbles, and the solvent discharge remains high and other problems, to achieve the effect of reducing pollution and emissions to the atmospheric environment, reducing the use of solvents, and reducing the amount of treatment

Active Publication Date: 2020-01-14
HANGZHOU CHINASTARS REFLECTIVE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the adhesive for reflective cloth compounding is a polyacrylate adhesive developed for the production of reflective cloth. It is a formaldehyde-free, toluene-free, safe and environmentally friendly solvent-based adhesive. The reflective cloth uses solvent-based composite adhesive with low solid content, about 70% of which is solvent, resulting in a large amount of coating, high solvent emissions, and the production efficiency cannot be improved faster, and the surface state is prone to defects such as bubbles

Method used

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  • Preparation method and application of high solid content low viscosity acrylic resin adhesive
  • Preparation method and application of high solid content low viscosity acrylic resin adhesive
  • Preparation method and application of high solid content low viscosity acrylic resin adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) The organic solvent is a mixture of ethyl acetate and toluene, wherein the weight percentage of ethyl acetate in the organic solvent is 60%, and the weight of toluene is 40%.

[0031] (2) 3 parts of vinyl triisopropoxysilane, 3 parts of glycidyl methacrylate, 3 parts of maleic anhydride, 20 parts of butyl acrylate, 20 parts of styrene, 1 part of dodecyl mercaptan, 90 36 parts of organic solvent of % weight part, 0.6 part of dilauroyl peroxide of 20% weight part, join at the bottom of reaction kettle, be warmed up to 80 ℃, after reacting for 40 minutes, mix remaining 2.4 parts of dilauroyl peroxide with organic solvent 3 parts were formulated as dilauroyl peroxide solution and added dropwise to the reaction kettle. After 4 hours of dropping, control the temperature to 80°C and keep it warm for 3 hours. Finally, add 1 part of the remaining organic solvent, cool down to 55°C and discharge to obtain modification. oligomer solution 1,

[0032] (3) Put all 35 parts of bu...

Embodiment 2

[0035] (1) The organic solvent is a mixture of ethyl acetate and toluene, wherein the weight percentage of ethyl acetate in the organic solvent is 70%, and the weight percentage of toluene is 30%.

[0036] (2) 5 parts of 3-methacryloxypropyltrimethoxysilane, 5 parts of glycidyl methacrylate, 5 parts of maleic anhydride, 25 parts of butyl acrylate, 25 parts of styrene, 3-mercaptopropane 2 parts of isooctyl esters, 40 parts of organic solvents of 80% by weight, and 1.5 parts of azobisisobutyronitrile of 30% by weight are added to the bottom of the reaction kettle, and the temperature is raised to 85 ° C. After 30 minutes of reaction, the remaining azobisisobutyronitrile 3.5 parts of azobisisobutyronitrile and 8 parts of organic solvent are formulated into azobisisobutyronitrile solution and added dropwise to the reaction kettle. After dropping for 3 hours, control the temperature to 83°C and keep it warm for 2 hours. Finally, add the remaining 2 parts of organic solvent , cooled...

Embodiment 3

[0040](1) The organic solvent is a mixture of ethyl acetate and toluene, wherein the weight percentage of ethyl acetate in the organic solvent is 80%, and the weight percentage of toluene is 20%.

[0041] (2) 0.1 part of triethoxysilane, 1 part of glycidyl methacrylate, 0.1 part of maleic anhydride, 15 parts of butyl acrylate, 15 parts of styrene, 0.01 part of α-methylstyrene linear dimer, 34 parts of organic solvents of 85% by weight, 0.01 part of azobisisoheptanonitrile of 5% by weight should be added to the bottom of the kettle, the temperature was raised to 78 ° C, and after 60 minutes of reaction, 0.19 parts of remaining azobisisoheptanonitrile was mixed with organic solvent 5 parts were added to the reaction kettle, and after 5 hours of dropwise addition, the temperature was controlled to 76°C and kept for 3 hours, and finally 1 part of the remaining organic solvent was added and the solvent was lowered to 50°C to discharge, and the modified oligomer solution 3 was obtain...

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Abstract

The invention relates to the technical field of adhesives, solves the problem of using low solid content solvent-based composite adhesive in traditional reflective cloth, provides a preparation methodof a high solid content low viscosity acrylic resin adhesive and its application on a reflective cloth. The preparation method comprises the following steps: adding acrylate soft monomer, hard monomer, functional monomer, part by weight of organic solvent and part by weight of initiator into the bottom of a reaction kettle, heating to 78-85 DEG C, reacting for 1-2 hours, making the remaining initiator into initiator solution by using the part of the remaining organic solvent, and continuously dropping into the reaction kettle for a dropping time of 3-5 hours, controlling the temperature to 76-83 DEG C, keeping the temperature for 2-3 hours, adding the remaining organic solvent into the reaction system, adding the modified acrylate oligomer, and cooling to 50-60 DEG C and obtaining the acrylate adhesive with high solid content and low viscosity and the solid content of the obtained adhesive can reach more than 50%, and the adhesive has low viscosity characteristics at the same time.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a method for preparing acrylic resin adhesives with high solid content and low viscosity. Background technique [0002] Reflective cloth is to fix the glass beads on the fabric with adhesive, and use the optical principle of refraction and reflection in the glass beads and then return to reflection. At present, the reflective fabrics sold on the market are basically composed of base fabrics, adhesives, reflective layers, bead layers, etc., among which adhesives are important key basic raw materials. [0003] Due to the characteristics of easy synthesis, good durability, good low temperature performance, low toxicity, and wide bonding surface, polyacrylate adhesives can meet the requirements for the use of luminescent materials. Since the acrylic adhesive for reflective cloth is the key raw material of reflective cloth, and it has certain commonality with commonly used acrylic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08C09J125/14C08F220/18C08F212/08C08F222/06C08F220/32C08F230/08C08F218/08C08F218/04C08F222/02
CPCC08F212/08C08F220/18C08L2205/025C09J125/14C09J133/08C09J143/04C08L33/08C08L43/04C08L25/14
Inventor 贾伟灿查伟强梅明常坤王世杰
Owner HANGZHOU CHINASTARS REFLECTIVE MATERIAL
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