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High-viscosity emulsion type pressure sensitive adhesive and preparation method thereof

A pressure-sensitive adhesive, emulsion-type technology, applied in the direction of adhesives, adhesive types, rosin adhesives, etc., can solve the problems of weak weather resistance, complicated operation of high-viscosity emulsion pressure-sensitive adhesives, etc., to achieve enhanced weather resistance, The effect of high cohesion and high peel force

Inactive Publication Date: 2018-04-20
ZHONGSHAN FUZHOU ADHESIVE PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defects in the prior art, the present invention proposes a high-viscosity emulsion-type pressure-sensitive adhesive and its preparation method, which solves the shortcomings of high-viscosity emulsion-type pressure-sensitive adhesives, such as cumbersome operation and weak weather resistance. The specific technical content is as follows:

Method used

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Embodiment Construction

[0022] The application scheme is further described as follows:

[0023] A high-viscosity emulsion type pressure-sensitive adhesive, which is polymerized by the following components by weight: 38-40 parts of water, 0.3-0.4 parts of ammonium persulfate, 0.3-0.4 parts of emulsifier, 50-55 parts of acrylate Monomer mixture material, and a tackifying resin with a polymerizable double bond; the tackifying resin with a polymerizable double bond includes 1-6 parts of polymerized rosin resin, 1-6 parts of terpene phenol resin; the acrylate unit The body mixture material refers to a mixture material including butyl acrylate, isooctyl acrylate, hydroxyethyl acrylate and acrylic acid.

[0024] A preparation method of a high-viscosity emulsion type pressure-sensitive adhesive, which comprises the following steps in sequence:

[0025] Pre-emulsion configuration step, add 14 parts of water and 0.4 parts of emulsifier in the emulsification tank, turn on the agitator to stir, add the required...

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PUM

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Abstract

The invention provides a high-viscosity emulsion type pressure sensitive adhesive. The high-viscosity emulsion type pressure sensitive adhesive is prepared by polymerizing the following components inparts by weight: 38 to 40 parts of water, 0.3 to 0.4 part of ammonium persulfate, 0.3 to 0.4 part of emulsifier, 50 to 55 parts of acrylate monomer mixed materials and double-bond-polymerizable tackifying resin, wherein the double-bond-polymerizable tackifying resin is prepared from 1 to 6 parts of polymerized rosin resin and 1 to 6 parts of terpene-phenolic resin. Meanwhile, the invention provides a preparation method of the high-viscosity emulsion type pressure sensitive adhesive. The preparation method comprises the following steps: adding 14 parts of the water and 0.4 part of the emulsifier into an emulsification tank, opening a stirrer for stirring, and adding quantitative acrylate monomer mixed materials required by a formula for sufficient emulsifying to form pre-emulsion; adding the water, heating to 80 to 90 DEG C and then adding NaHCO3 and the ammonium persulfate; controlling the temperature of a reaction still at 80 to 90 DEG C, and dropwise adding the pre-emulsion and the ammonium persulfate to obtain emulsion; keeping the temperature of the reaction still at 80 to 90 DEG C, and dropwise adding polymerized rosin resin emulsion and terpene-phenolic resin emulsion; cooling after the dropwise adding is ended, carrying out heat preservation at 45 to 50 DEG C, adding ammonia water and adjusting a pH value to 8.

Description

technical field [0001] The invention belongs to the field of pressure-sensitive adhesives, in particular to a high-viscosity emulsion-type pressure-sensitive adhesive and a preparation method thereof. Background technique [0002] At present, the adhesives used in high-viscosity pressure-sensitive adhesive label paper are mainly solvent-based and emulsion-based. Although solvent-based pressure-sensitive adhesives have high bonding performance, they have defects in environmental protection and safety, so they are gradually being used by emulsions. Type pressure sensitive adhesive replaced. However, the viscosity of pure acrylic emulsion pressure-sensitive adhesives cannot meet the high viscosity requirements. The viscosity of the adhesive and the applicability of the adhesive are often improved by adding a rosin-type tackifying resin to the colloid. Although this addition method can improve the emulsion type The viscosity of pressure-sensitive adhesives has disadvantages: ...

Claims

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Application Information

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IPC IPC(8): C09J133/04C09J193/04C09J145/00
CPCC09J133/04C08L2205/03C08L93/04C08L45/00
Inventor 陈湘丽杜中宝
Owner ZHONGSHAN FUZHOU ADHESIVE PROD CO LTD
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