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Water-borne acrylic compound adhesive and preparing method thereof

A composite adhesive and water-based acrylic technology, which is applied in the direction of adhesives, grafted polymer adhesives, adhesive types, etc., can solve the problem of poor wettability between glue and film surface, poor bonding strength of water-based adhesives, and water-based adhesives. Adhesive application is limited and other problems, to achieve the effect of environmental protection, easy transportation and storage, and convenient operation

Inactive Publication Date: 2016-08-31
湖南省和祥润新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Acrylic emulsion adhesive is a relatively commonly used water-based adhesive, but the application of this water-based adhesive is still very limited at present. Additives and other additives will precipitate or migrate to the surface after film formation, which will affect the adhesion of the material surface; in addition, the surface tension of water is relatively high, resulting in poor wettability between the glue and the surface of the film, which will also affect the bonding strength

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A water-based acrylic composite adhesive. The raw materials in parts by weight include: 5 parts of emulsifier, 0.2 part of initiator, 4 parts of hydroxyl-terminated polydimethylsiloxane organosilicon modifier, 20 parts of soft monomer, and 0.5 parts of buffering agent. 20 parts, 20 parts of hard monomer, 8 parts of functional monomer, 4 parts of pH regulator, 70 parts of deionized water.

[0025] The preparation method of described waterborne acrylic acid composite adhesive, concrete steps are as follows:

[0026] (1) Weigh each raw material according to parts by weight;

[0027] (2) Mix hard monomers, soft monomers and functional monomers evenly to obtain mixed monomers for use;

[0028] (3) Put 40% of the total amount of deionized water and 50% of the total amount of emulsifier into the emulsification tank, stir and emulsify for 40 minutes, then add 40% of the total amount of mixed monomers, start stirring and emulsifying for 60 minutes to obtain the first pre-prepar...

Embodiment 2

[0033] A water-based acrylic composite adhesive, the raw materials in parts by weight include: 6 parts of emulsifier, 0.3 parts of initiator, 4.5 parts of hydroxyl-terminated polydimethylsiloxane organosilicon modifier, 22 parts of soft monomer, and 0.55 parts of buffering agent parts, 22 parts of hard monomers, 9 parts of functional monomers, 4.5 parts of pH regulators, and 75 parts of deionized water.

[0034] The preparation method of described waterborne acrylic acid composite adhesive, concrete steps are as follows:

[0035] (1) Weigh each raw material according to parts by weight;

[0036] (2) Mix hard monomers, soft monomers and functional monomers evenly to obtain mixed monomers for use;

[0037] (3) Put 45% of the total amount of deionized water and 55% of the total amount of emulsifier into the emulsification tank, stir and emulsify for 45 minutes, then put in 45% of the total amount of mixed monomers, start stirring and emulsifying for 65 minutes to obtain the firs...

Embodiment 3

[0042] A water-based acrylic composite adhesive. The raw materials in parts by weight include: 8 parts of emulsifier, 0.4 part of initiator, 5 parts of hydroxyl-terminated polydimethylsiloxane organosilicon modifier, 25 parts of soft monomer, and 0.6 parts of buffering agent. parts, 25 parts of hard monomers, 10 parts of functional monomers, 5 parts of pH regulators, and 80 parts of deionized water.

[0043] The preparation method of described waterborne acrylic acid composite adhesive, concrete steps are as follows:

[0044] (1) Weigh each raw material according to parts by weight;

[0045] (2) Mix hard monomers, soft monomers and functional monomers evenly to obtain mixed monomers for use;

[0046] (3) Put 50% of the total amount of deionized water and 60% of the total amount of emulsifier into the emulsification tank, stir and emulsify for 50 minutes, then put in 50% of the total amount of mixed monomers, start stirring and emulsifying for 70 minutes to obtain the first pr...

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PUM

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Abstract

The invention discloses water-borne acrylic compound adhesive. The water-borne acrylic compound adhesive is prepared from the following raw materials in parts by weight: 5-10 parts of emulsifying agent, 0.2-0.6 part of initiating agent, 4-6 parts of hydroxyl-terminated polydimethylsiloxane organosilicone modifying agent, 20-30 parts of soft monomer, 0.5-0.7 part of buffering agent, 20-30 parts of hard monomer, 8-12 parts of functional monomer, 4-6 parts of pH conditioning agent and 70-90 parts of deionized water. The hard monomer is one or more than two kinds of methyl acrylate, methyl methacrylate, vinyl acetate, ethyl methacrylate and n-butyl methacrylate. The prepared water-borne acrylic compound adhesive is good in stability, high in viscosity, free of organic solvent, free of poison, favorable for environmental friendliness and health of operating workers and easy to convey and store. By means of adding various kinds of water-borne additives with excellent performance, foam of the water-borne acrylic compound adhesive during use is reduced, moistening and leveling property of emulsion on the surface of a plastic film is improved, the convenientce of operation is realized, the affinity between glue and a PET film is improved, and the peel strength is improved.

Description

technical field [0001] The invention relates to an adhesive, in particular to a water-based acrylic composite adhesive and a preparation method thereof. Background technique [0002] For a long time, the adhesives used for compounding food packaging bags have all used organic solvent-based adhesives, which are toxic to the environment and the human body. The water-based composite adhesive uses water as a solvent, which is completely non-toxic and harmless. It is an environmentally friendly adhesive and is very suitable for the compounding of food packaging materials. The main advantages of water-based composite adhesives are: (1) There will be no solvent residue in the composite film, and the residual solvent odor of packaging materials will be reduced; (2) No solvent recovery device is required, which is conducive to the sanitation of the working environment in the factory; (3) No fire , The danger of explosion; (4) Low cost. Acrylic emulsion adhesive is a relatively comm...

Claims

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Application Information

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IPC IPC(8): C09J151/08C08F283/12C08F220/14C08F218/08C08F220/18C08F2/26
CPCC09J151/085C08F2/26C08F283/122C08F220/1808C08F220/1802C08F220/1804
Inventor 廖平湘
Owner 湖南省和祥润新材料有限公司
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