Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Emulsion-type acrylate pressure-sensitive adhesive, preparation method thereof and double-sided adhesive tape

An acrylate and pressure-sensitive adhesive technology, applied in the field of pressure-sensitive adhesives, can solve the problems of low peeling force and initial adhesion, poor temperature resistance, etc., achieve high peeling force, improve poor temperature resistance, and simplify the production process Effect

Inactive Publication Date: 2021-01-22
SUZHOU SIDIKE NEW MATERIALS SCI & TECH
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at the same time, emulsion pressure-sensitive adhesives also have disadvantages such as poor temperature resistance, low peeling force and low initial adhesion.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Emulsion-type acrylate pressure-sensitive adhesive, preparation method thereof and double-sided adhesive tape

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1) Under rapid stirring, put 25 parts of deionized water into the emulsification tank, then add 0.15 parts of emulsifier, 71 parts of butyl acrylate, 1 part of methyl acrylate, 1.7 parts of (meth)acrylic acid, 1.1 parts of hydroxyethyl acrylate Esters, 0.05 parts of tert-dodecyl mercaptan, the stirring speed is 400r / min, stirring for 20min, the monomer pre-emulsion is prepared.

[0032] 2) Completely dissolve emulsifier A501 of 0.05wt% of the total amount of monomers in deionized water at 35°C and add to the reactor, add 0.5wt% of ammonium persulfate of the total amount of monomers, and then add equivalent Add 40wt% deionized water to the monomer pre-emulsion and 0.05wt% ammonium bicarbonate in the total amount of the monomer, continue to heat up to 80°C-90°C, add 2wt% monomer pre-emulsion to the reaction kettle, and control the temperature at 75- React at 90°C for 10-20 minutes, the reflux gradually disappears, and the emulsion in the reactor appears milky blue, indica...

Embodiment 2

[0037] 1) Under rapid stirring, put 22.47 parts of deionized water, 0.2 parts of emulsifier OT-75, 60 parts of butyl acrylate, 14 parts of ethyl acrylate, 1 part of hydroxyethyl acrylate, 0.1 part of methyl acrylate into the emulsification tank , 2 parts of (meth)acrylic acid, 0.03 part of tert-dodecyl mercaptan, stirred at 400r / min for 20min, and the monomer pre-emulsion was prepared.

[0038]2) Dissolve the emulsifier OP-10 with 0.05wt% of the total amount of monomers in deionized water at about 35°C and add it into the reactor, then add ammonium persulfate of 0.3wt% of the total amount of monomers into the reactor Add monomer pre-emulsion 40wt% deionized water and monomer total amount of 0.05wt% ammonium bicarbonate, continue to heat up to 80°C-90°C, add 2wt% monomer pre-emulsion to the reaction kettle, temperature control 80 React at -90°C for 10-20 minutes, the reflux gradually disappears, and the emulsion in the reactor appears milky blue, indicating that the synthesis o...

Embodiment 3

[0043] 1) Under rapid stirring, put 30 parts of deionized water, 0.1 parts of emulsifier H95, 35.85 parts of butyl acrylate, 29 parts of ethyl acrylate, 1.5 parts of hydroxyethyl acrylate, 1 part of methyl methacrylate into the emulsification tank , 2 parts of (meth)acrylic acid, 0.05 part of tert-dodecyl mercaptan, stirred at 400r / min for 20min, and the monomer pre-emulsion was prepared.

[0044] 2) Dissolve 0.05wt% emulsifier OP-10 of the total amount of monomers completely with deionized water at about 35°C and add it to the reaction kettle, add ammonium persulfate of 0.4wt% of the total amount of monomers, and pour into the reaction kettle Add 40wt% deionized water of the monomer pre-emulsion and 0.05wt% ammonium bicarbonate of the total amount of monomers, continue to heat up to 80-90°C, add 2wt% monomer pre-emulsion to the reaction kettle, and control the temperature at 80-90 ℃, react for 10-20 minutes, the reflux gradually disappears, and the emulsion in the reactor app...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method of an emulsion-type acrylate pressure-sensitive adhesive, a preparation method of the emulsion-type acrylate pressure-sensitive adhesive and a double-sidedadhesive tape. The preparation method of the emulsion-type acrylate pressure-sensitive adhesive comprises the following steps: 1) mixing a soft monomer, a hard monomer, a functional monomer, an emulsifier, a molecular weight regulator and water to synthesize a pre-emulsion; 2) mixing an initiator, an emulsifier, a pH buffer agent and water, and adding the pre-emulsion to obtain a seed emulsion; 3) adding the remaining pre-emulsion and initiator into the seed emulsion, and reacting for 1-2.5 hours; cooling to 60-70 DEG C, and adding a pH buffer agent; cooling the emulsion to 60-68 DEG C, and sequentially adding an oxidizing agent and a reducing agent; 4) cooling the emulsion to 20-60 DEG C, adding a thickening agent and a thickening agent, stirring, and discharging to obtain an acrylate white emulsion; and 5) adding a water-based curing agent into the acrylate white emulsion to obtain the high-performance emulsion pressure-sensitive adhesive. The emulsion-type acrylate pressure-sensitive adhesive disclosed by the invention is good in temperature resistance and high in stripping force and initial adhesion force.

Description

technical field [0001] The invention relates to the technical field of pressure-sensitive adhesives, in particular to an emulsion-type acrylate pressure-sensitive adhesive, a preparation method thereof and a double-sided adhesive tape. Background technique [0002] Double-sided adhesive tape generally consists of three parts: base material, adhesive, and release paper (film). Adhesive tape in the form of a roll or a sheet made of a release paper (film). Substrate-free double-sided adhesive tape generally consists of two parts: adhesive and release paper (film). It is a roll or sheet adhesive tape made by coating the release paper (film) material with adhesive. [0003] At present, commonly used double-sided tapes generally use solvent-based pressure-sensitive adhesives. Solvent-based pressure-sensitive adhesives have the advantage of good viscosity, but the solvents in them are volatile and easy to pollute the environment, and curing agents need to be added during productio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F220/14C08F220/06C08F220/20C08F2/10C09J7/38C09J133/08C09J7/21
CPCC08F2/10C09J133/066C09J7/21C09J7/385C08F220/1804C08F220/14C08F220/06C08F220/20C08F220/1802
Inventor 金闯刘小宁
Owner SUZHOU SIDIKE NEW MATERIALS SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com