Preparation method of improved complex adhesive

A composite adhesive, improved technology, applied in the direction of adhesive additives, ester copolymer adhesives, non-polymer adhesive additives, etc., can solve the problem of unsatisfactory adhesion effect and limited PP film affinity problems, to achieve the effect of reduced production cost and strength, and excellent adhesion performance

Inactive Publication Date: 2013-04-03
梁文隽
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] VAE emulsion is often used to mix with other substances, because VAE has limited affinity for PP film, and the general adhesion effect is not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Processing step of the present invention is:

[0022] 1. Preparation of Seed Emulsion

[0023] Prepare the emulsifier. The amount of emulsifier added is 1-5%. Take 2 / 3 of the emulsifier and add it to a three-necked flask together with PVA1999, sodium bicarbonate, water, MA, and VA. Stir evenly and heat up to 65°C. Pre-emulsify for 5-10 minutes;

[0024] 2. Aggregation

[0025] Add the initiator APS, keep reflux at 60-70°C for 20-30 minutes, then add BA and the remaining MA and VA drop by drop, and add the remaining emulsifier, initiator and molecular weight regulator NSSE in batches, the dropping process Control it at 3.5~4h, and then react for 1~2h after the dropwise addition; raise the temperature to 80~90℃, and continue to react for 1~2h;

[0026] 3. Composite

[0027] Cool the above emulsion to room temperature, add 10-30% tackifier toluene solution, and stir evenly to obtain the improved composite adhesive.

[0028] The most preferred solution, the process ste...

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PUM

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Abstract

The invention relates to a preparation method of the complex adhesive, and in particular relates to a preparation method of improved complex adhesive. The invention provides a preparation method of the improved complex adhesive which has the characteristics of powerful viscous, favorable stickness, and long stable phase. The invention adopts the technical scheme as follows: carrying out a polymerization reaction by using acrylic acid methyl ester, butyl acrylate and acetic acid vinyl ester as the monomers to obtain an emulsion, adding tackfier in the emulsion to obtain the complex adhesive.

Description

Technical field: [0001] The invention relates to a preparation method of a composite adhesive, more specifically, relates to a preparation method of an improved composite adhesive. Background technique: [0002] Paper-plastic composite is to compound a layer of polypropylene film on color printing paper. It can make the surface of printed matter bright and smooth, and also has the functions of moisture-proof, anti-fouling, folding resistance, and wear resistance. It is currently widely used in the printing and packaging industry. From a chemical point of view, it is more difficult to firmly adhere the non-polar polypropylene film to the polar paper surface, and there are higher requirements on the performance of the adhesive used. In addition, because the paper-plastic composite industrialization process requires fast and high efficiency, the adhesive used must not only stick firmly, but also require good initial tack, appropriate viscosity, uniform coating, and easy cleanin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08C09J131/04C09J11/06D21H21/14
Inventor 梁文隽
Owner 梁文隽
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