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A kind of removable water-based acrylate pressure-sensitive adhesive and its preparation method and application

A water-based acrylate, pressure-sensitive adhesive technology, applied in the directions of ester copolymer adhesives, adhesive types, adhesive additives, etc., can solve the problems of insufficient cohesion, insufficient adhesion, residual glue, etc. Rheological stability, enhanced stability, improved adhesion effects

Active Publication Date: 2016-01-20
ZHONGSHAN RONGSIDONG DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyacrylate pressure-sensitive adhesives generally have shortcomings such as insufficient cohesion, low controllability of peel strength, insufficient adhesion, unsuitable fluidity control, and residual adhesive after use, which cannot be reused.

Method used

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  • A kind of removable water-based acrylate pressure-sensitive adhesive and its preparation method and application
  • A kind of removable water-based acrylate pressure-sensitive adhesive and its preparation method and application
  • A kind of removable water-based acrylate pressure-sensitive adhesive and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0054] The preparation method of the present invention is:

[0055] a. Pre-emulsification: Mix and dissolve the anionic emulsifier in component 1 with water, stir fully and heat to 60±5°C to dissolve, and add soft monomer, hard monomer and functional monomer in turn under stirring, The stirring time is controlled at 25-35 minutes to prepare the pre-emulsion. During the stirring period, the stirring speed is slowly increased to 500 rpm;

[0056] b. Emulsion polymerization: Add component 2 into the reactor, heat to raise the temperature to 82±2°C, and half an hour after the blue light appears in the reactor, add the pre-emulsion prepared in step a dropwise, and control the dripping for 3 hours , then add component 3, and keep the temperature at 86±2°C for 1 hour to form a semi-finished product;

[0057] c. Blending: Stop heating the semi-finished product obtained in step b. When the temperature drops to 40-50°C, adjust the pH value to 9 with the pH regulator in component 1, add...

Embodiment 1a

[0091] Embodiment 1a: Component 1-4 and preparation implementation method are the same as Comparative Example 1, in the preparation c step of pressure-sensitive adhesive, add component 5 multi-component star polymer (II) 1.0 together with component 4 share.

Embodiment 1b

[0092] Example 1b: Components 1-4 and preparation implementation method are the same as Comparative Example 2, in the preparation c step of pressure-sensitive adhesive, add component 5 multi-component star polymer (II) 5.0 together with component 4 share.

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Abstract

The invention discloses a multi-moving waterborne acrylate pressure sensitive adhesive and a preparation method and application thereof. The pressure sensitive adhesive adopts a multi-component star high-molecular polymer as a coupling agent, and is emulsified and polymerized with a soft monomer, a hard monomer, a functional monomer, an anionic emulsifier, an initiator, a crosslinking agent, water and a pH modifier. The star polymer is applied to a formula of the waterborne pressure sensitive adhesive, so that the adhesive force of the adhesive body is improved, the stability of the adhesive body and the adhesive force of different mediums are enhanced, the adhesive body and application products of thereof have long-term movable characteristics, environmental protection and energy conservation are facilitated, and the use cost is reduced.

Description

【Technical field】 [0001] The invention relates to a pressure-sensitive adhesive and a preparation method thereof, in particular to a multiple-time removable water-based acrylate pressure-sensitive adhesive containing a star-shaped polymer, a preparation method and application thereof, and belongs to the technical field of polymer materials. 【Background technique】 [0002] Pressure Sensitive Adhesive (PSA) refers to an adhesive that does not need to add a curing agent or solvent, nor does it need to be heated, and only needs to apply a little contact pressure to achieve bonding. Pressure-sensitive adhesive is a kind of self-adhesive substance, which can form a relatively strong adhesive force under a small force. The adhesive force formed between the surfaces of two objects is mainly van der Waals force. Therefore, the adhesive surface After formation, the structure of the bonding surface is not destroyed. The most common form of use of pressure-sensitive adhesives is to app...

Claims

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Application Information

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IPC IPC(8): C09J133/08C09J11/08C08F220/18C08F220/14C08F212/08C08F220/06C08F2/26
Inventor 周广滨陈大全张怡平陈丽娟刘风华姚铭南
Owner ZHONGSHAN RONGSIDONG DIGITAL TECH CO LTD
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