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Water-based sealing compound adhesive emulsion and preparation method thereof

A sealing glue and adhesive technology, applied in the directions of adhesives, adhesive additives, adhesive types, etc., can solve the problems of pulverization, water-based sealing glue can not form a film, film cracks of water-based sealing glue, etc. The effect of water resistance

Inactive Publication Date: 2017-02-01
威远翰林科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The inventors have found that the water-based sealing adhesive produced by this method usually cannot form a film at a temperature lower than -10°C, that is to say, too low a temperature will cause a large number of cracks, pulverization, and lead to degumming
The disadvantage of poor low temperature resistance of water-based sealing adhesives seriously limits the application and development of water-based sealing adhesives.

Method used

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  • Water-based sealing compound adhesive emulsion and preparation method thereof
  • Water-based sealing compound adhesive emulsion and preparation method thereof
  • Water-based sealing compound adhesive emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Weigh each reagent according to the following mass parts:

[0037]

[0038]

[0039] 1) First, add 20 parts of deionized water into the reactor, add 1 part of polyvinyl alcohol under stirring to disperse evenly, and then gradually heat up to 95°C to completely dissolve the polyvinyl alcohol.

[0040] 2) Lower the temperature to 60°C, add 0.04 part of sodium bicarbonate buffer, 0.5 part of emulsifier (the alkyl alcohol polyether type emulsifier and anionic emulsifier are compounded in a ratio of 2:3), stir and disperse evenly.

[0041] 3) get 7 parts of butyl acrylate, 3.5 parts of vinyl acetate, 0.35 part of methacrylic acid, 0.35 part of hydroxypropyl acrylate, 0.7 part of methyl methacrylate and mix to obtain a core monomer,

[0042] 4) Take 3 parts of core monomers and add them to the reactor containing the primer solution for pre-emulsification to obtain a pre-emulsion solution

[0043] 5) heating up, dripping 0.05 part of initiator in the reactor to initiate...

Embodiment 2

[0051] Weigh each reagent according to the following mass parts:

[0052]

[0053]

[0054] 1) First, add 30 parts of deionized water into the reactor, add 3 parts of polyvinyl alcohol under stirring to disperse evenly, and then gradually heat up to 95°C to completely dissolve the polyvinyl alcohol.

[0055] 2) Lower the temperature to 60°C, add 0.06 part of sodium bicarbonate buffer, 1 part of emulsifier (the alkyl alcohol polyether type emulsifier and anionic emulsifier are compounded in a ratio of 2:3), stir and disperse evenly.

[0056] 3) Mix 10 parts of butyl acrylate, 6 parts of vinyl acetate, 0.3 parts of methacrylic acid, 0.3 parts of hydroxypropyl acrylate, and 0.6 parts of methyl methacrylate to obtain a core monomer,

[0057] 4) Take 5 parts of core monomers and add them into the reactor containing the primer solution for pre-emulsification to obtain a pre-emulsion solution

[0058] 5) heating up, dripping 0.04 part of initiator in the reactor to initiate se...

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Abstract

The invention relates to a water-based sealing compound adhesive emulsion which is mainly composed of butyl acrylate, methyl methacrylate, vinyl acetate, polyvinyl alcohol, an emulsifier, a tackifier, methacrylic acid, 2-hydroxypropyl acrylate, an initiator and deionized water. The preparation method mainly comprises the following steps: (1) preparing a preemulsion; (2) carrying out seed emulsion polymerization; (3) carrying out core monomer polymerization; (4) carrying out shell monomer polymerization; (5) curing by keeping the temperature; and (6) discharging. The water-based sealing compound adhesive emulsion can form a film at lower temperature; and the water resistance and adhesive property stability of the adhesive emulsion are enhanced.

Description

technical field [0001] The invention relates to an adhesive emulsion, in particular to an adhesive emulsion for water-based sealing glue. Background technique [0002] At present, the sealing glue is widely used in the sealing bonding or lap forming of the edge and bottom edge on the packaging of medicine boxes, food boxes, packaging boxes and so on. However, most of the sealing glues in the domestic market are organic solvent-based sealing glues (ie oily glues) that are flammable, explosive, toxic and pollute the environment, which not only pollutes the packaged products, but also harms the health of the workers in the packaging workshop. The obsolete sealant that is expressly stipulated is strictly prohibited in Europe and the United States and other countries. [0003] In recent years, people's attention to environmental protection, safety, energy saving and the continuous expansion of water-based adhesives have made water-based sealants gradually replace solvent-based s...

Claims

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Application Information

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IPC IPC(8): C09J151/00C09J11/08C08F265/06C08F220/18C08F220/14C08F218/08C08F220/06C08F220/28C08F2/24C08F2/26C08F2/30
CPCC08F2/24C08F2/26C08F2/30C08F265/06C08L2201/08C08L2205/03C09J11/08C09J151/003C08L93/04C08L45/00C08F220/1804
Inventor 廖程琦张娅李世航
Owner 威远翰林科技有限公司
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