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Preparation method of emulsion type acrylic pressure-sensitive adhesive for high-gloss reflective cloth

A technology of acrylic pressure-sensitive adhesive and reflective cloth, which is applied in the field of pressure-sensitive adhesives. It can solve the problems of affecting the performance of acrylic pressure-sensitive adhesives, poor emulsification effect, and weak gloss, and achieves no explosion and gel phenomenon. , good emulsification effect, excellent process conditions

Inactive Publication Date: 2020-12-25
安徽富印新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, in the process of producing water-based acrylic pressure-sensitive adhesives, the emulsification effect is not good, bursting and gelation often occur, which affects the performance of acrylic pressure-sensitive adhesives, and there is also a lack of gloss when applied on reflective cloth. , the problem of hard hand feeling, in order to solve the above problems, we have made a series of improvements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A preparation method of emulsion-type acrylic pressure-sensitive adhesive for high-gloss reflective cloth, the steps are as follows:

[0026] (1) Weigh 55 parts by weight of acrylic acid, 75 parts of styrene, 30 parts of modified self-made rosin ester emulsions, 80 parts of isooctyl acrylate, 55 parts of methyl methacrylate, and 50 parts of hydroxyethyl acrylate part, 15 parts of initiator, cross-linking agent diacetone acrylamide and cross-linking agent adipate dihydrazide total 2.5 parts; the ratio of described diacetone acrylamide and adipate dihydrazide is 1:1, ammonia 25 parts, 8 parts of emulsifier, 120 parts of deionized water, 1.5 parts of tackifier. Preferably, the initiator is ammonium persulfate. The modified self-made rosin ester emulsion is prepared by weighing 40 parts of rosin glyceride in parts by weight and melting at 140°C under nitrogen protection, adding 5 parts of ethylene oxide, 3 parts of maleic anhydride, 1 part of p-toluene under stirring sulf...

Embodiment 2

[0030] A preparation method of emulsion-type acrylic pressure-sensitive adhesive for high-gloss reflective cloth, the steps are as follows:

[0031] (1) Weigh 50 parts by weight of acrylic acid, 80 parts of styrene, 40 parts of modified homemade rosin ester emulsions, 75 parts of isooctyl acrylate, 65 parts of methyl methacrylate, 40 parts of hydroxyethyl acrylate part, 20 parts of initiator ammonium persulfate, 20 parts of ammonia water, 10 parts of emulsifier sodium lauryl sulfate, 100 parts of deionized water, 2 parts of water-based tackifier, 2 parts of crosslinking agent (crosslinking agent is diacetone acrylamide and adipic acid dihydrazide, the diacetone acrylamide and the adipic acid dihydrazide ratio are 1:1.); The modified self-made rosin ester emulsion is prepared by weighing 50 parts by weight Parts of rosin glyceride melted under nitrogen protection at 160°C, added 8 parts of ethylene oxide, 5 parts of maleic anhydride, and 2 parts of p-toluenesulfonic acid under ...

Embodiment 3

[0035] A preparation method of emulsion-type acrylic pressure-sensitive adhesive for high-gloss reflective cloth, the steps are as follows:

[0036](1) Weigh 65 parts by weight of acrylic acid, 70 parts of styrene, 50 parts of modified homemade rosin ester emulsions, 95 parts of isooctyl acrylate, 50 parts of methyl methacrylate, 60 parts of hydroxyethyl acrylate part, 10 parts of initiator ammonium persulfate, 30 parts of ammonia water, 5 parts of emulsifier sodium lauryl sulfate, 150 parts of deionized water, 1 part of water-based tackifier, 3 parts of crosslinking agent (the crosslinking agent is diacetone Acrylamide and adipic acid dihydrazide, the diacetone acrylamide and the described adipic acid dihydrazide ratio are 1:1.); The self-made rosin ester emulsion of the modification is prepared by weighing 45 parts by weight Parts of rosin glyceride melted under nitrogen protection at 150°C, added 6 parts of ethylene oxide, 4 parts of maleic anhydride, and 1.5 parts of p-tol...

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Abstract

The invention provides a preparation method of an emulsion type acrylic acid pressure-sensitive adhesive for high-gloss reflective fabric, which comprises the steps of putting 1 / 3 of the weight of anemulsifier, an initiator and deionized water into a reactor, starting stirring, slowly dropwise adding a mixed comonomer into the reactor within 30-40 minutes, adding 1 / 3 of the emulsifier and initiator, continuing stirring for 20-30 minutes, and emulsifying to obtain a pre-emulsified solution; adding 1 / 3 of deionized water into the reaction kettle for reaction, then adding 1 / 3 of emulsifier and initiator, heating to the temperature of 80-85 DEG C, adding 1 / 4 of the pre-emulsified solution into the reaction kettle, carrying out heat preservation reaction for 30-40 minutes, dropwise adding theresidual pre-emulsified solution into the reaction kettle at a constant speed for 4-4.5 hours, continuing to carry out heat preservation for 2-2.5 hours, cooling to the temperature of 50-60 DEG C, adding ammonia water and residual deionized water, and filtering to obtain a finished product. The preparation method is good in emulsifying effect and free of implosion and gel phenomena, and the prepared finished product is good in comprehensive performance.

Description

technical field [0001] The invention relates to the technical field of pressure-sensitive adhesives, in particular to a preparation method of an emulsion-type acrylic pressure-sensitive adhesive for high-gloss reflective cloth. Background technique [0002] Acrylic pressure-sensitive adhesive is an adhesive product synthesized by polymerization reaction based on acrylate monomers. Since acrylic pressure-sensitive adhesive does not contain unsaturated bonds, it has good oxidation resistance, bonding performance, water resistance and solvent resistance, and can be widely used in many materials, such as paper, metal, plastic, ceramics, food, etc. Packaging and medical products, etc. Therefore, although the research and development of acrylic pressure-sensitive adhesives is relatively late compared with other types of pressure-sensitive adhesives, it develops rapidly and has a huge development space, which is the development trend of pressure-sensitive adhesives. [0003] The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J151/00C09J11/06C08F289/00C08F220/06C08F212/08C08F220/18C08F220/14C08F220/20C08F220/58
CPCC09J151/00C09J11/06C08F289/00C08F220/06C08F212/08C08F220/1808C08F220/14C08F220/20C08F220/58C08K5/25
Inventor 陈会杰
Owner 安徽富印新材料股份有限公司
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