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

UV (Ultraviolet)-cured acrylate pressure-sensitive adhesive with low shrinkage rate and preparation method thereof as well as UV-cured acrylate pressure-sensitive adhesive tape with low shrinkage rate

An acrylate, low shrinkage technology, applied in the field of low shrinkage UV-curable acrylate pressure-sensitive adhesive tapes, can solve the problems of low shrinkage and high pressure-sensitive adhesive adhesion, and achieve low shrinkage and adhesion. Large, wide-ranging effects

Active Publication Date: 2018-09-07
HARBIN INST OF TECH WUXI RES INST OF NEW MATERIALS +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pressure-sensitive adhesive and the pressure-sensitive adhesive tape of the present invention solve the defect that the surface shrinkage phenomenon occurs when the acrylate pressure-sensitive adhesive is cured by UV light during the synthesis process of the acrylate pressure-sensitive adhesive. At the same time, the pressure-sensitive adhesive of the present invention has high adhesion and low shrinkage And the performance of no residual glue during use

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
  • UV (Ultraviolet)-cured acrylate pressure-sensitive adhesive with low shrinkage rate and preparation method thereof as well as UV-cured acrylate pressure-sensitive adhesive tape with low shrinkage rate
  • UV (Ultraviolet)-cured acrylate pressure-sensitive adhesive with low shrinkage rate and preparation method thereof as well as UV-cured acrylate pressure-sensitive adhesive tape with low shrinkage rate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1) After mixing 45g of butyl acrylate, 15g of isooctyl acrylate, 15g of vinyl acetate, 4.7g of acrylic acid, 2g of hydroxyethyl acrylate, and 0.3g of 4-acryloyloxybenzophenone, take 60 % with the solvent (ethyl acetate:toluene=5:3) of 75g, 0.15g initiator AIBN mixes and pours into the four-necked flask that thermometer, mechanical stirring (150rap / min) and condensing tube are equipped with, then be heated to 80 ℃ reaction, when the viscosity of the reaction system starts to increase, count 1h.

[0033] 2) After 1h, the remaining monomer, 75g of solvent (ethyl acetate: toluene = 5:3) and 0.075g of initiator AIBN were evenly added dropwise into the reaction system within 1h using a constant liquid funnel, and then incubated for 2h.

[0034] 3) Add the remaining 0.075g of initiator AIBN into the reaction system at one time, and then keep it warm for 1.5h.

[0035] 4) After heat preservation for 1.5 hours, add 18 g of polyvinyl acetate into the reaction system, adjust the ...

Embodiment 2

[0039] 1), mix 45g of butyl acrylate, 15g of isooctyl acrylate, 15g of vinyl acetate, 4.7g of acrylic acid, 2g of hydroxyethyl acrylate, and 0.3g of phenyl-(1-acryloyloxy)-cyclohexyl ketone Afterwards, get its 60% and 75g solvent (ethyl acetate: toluene=5:3), 0.15g initiator AIBN is mixed and poured into the four-necked flask that thermometer, mechanical stirring (150rap / min) and condenser pipe are housed , and then heated to 80°C for reaction, when the viscosity of the reaction system began to increase, timed for 1h.

[0040] 2) After 1 hour, the remaining monomer, 75g of solvent and 0.075g of initiator were evenly added dropwise into the reaction system within 1 hour using a constant liquid funnel, and then kept for 2 hours of reaction.

[0041] 3) Add the remaining 0.075g of the initiator into the reaction system at one time, and then keep it warm for 1.5h.

[0042] 4) After heat preservation for 1.5 hours, add 18 g of polyvinyl acetate into the reaction system, adjust the...

Embodiment 3

[0046] 1) After mixing 45g of butyl acrylate, 15g of isooctyl acrylate, 15g of vinyl acetate, 4.7g of acrylic acid, 2g of hydroxyethyl acrylate, and 0.3g of 4-acryloyloxybenzophenone, take 60 % with the solvent (ethyl acetate:toluene=5:3) of 75g, 0.15g initiator AIBN mixes and pours into the four-necked flask that thermometer, mechanical stirring (150rap / min) and condensing tube are equipped with, then be heated to 80 ℃ reaction, when the viscosity of the reaction system starts to increase, count 1h.

[0047] 2) After 1 hour, the remaining monomer, 75g of solvent and 0.075g of initiator were evenly added dropwise into the reaction system within 1 hour using a constant liquid funnel, and then kept for 2 hours of reaction.

[0048] 3) Add the remaining 0.075g of the initiator into the reaction system at one time, and then keep it warm for 1.5h.

[0049]4) After 1.5 hours of heat preservation reaction, add 18 g of polyvinyl acetal into the reaction system, adjust the rotation sp...

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 UV (Ultraviolet)-cured acrylate pressure-sensitive adhesive with a low shrinkage rate and a preparation method thereof as well as a UV-cured acrylate pressure-sensitive adhesive tape with the low shrinkage rate. The UV-cured acrylate pressure-sensitive adhesive with the low shrinkage rate is characterized by being prepared from the following raw materials in parts by weight: 15 to 30 parts of a hard monomer, 30 to 60 parts of a soft monomer, 5 to 15 parts of a functional monomer, 0.3 to 0.5 part of an initiator, 0.2 to 0.8 part of a photo-curing agent, 13 to 20 partsof an expansion polymer and 100 to 160 parts of a solvent. In a synthesis process of the acrylate pressure-sensitive adhesive, the defect that a surface shrinkage phenomenon is generated in a UV photo-curing process is overcome; meanwhile, the pressure-sensitive adhesive disclosed by the invention has the advantages of great binding power, low shrinkage rate and no residual adhesive in an application process.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a low-shrinkage UV-curable acrylate pressure-sensitive adhesive, a preparation method thereof, and a low-shrinkage UV-curable acrylate pressure-sensitive adhesive tape. Background technique [0002] Adhesive refers to the technology that can connect the surfaces of homogeneous or heterogeneous objects together with some kind of adhesive. It has the characteristics of high viscosity, no glue residue, light weight and convenient use. Gluing is especially suitable for the connection of different materials, different thicknesses, ultra-thin specifications and complex components, such as steel, wood, plastic and objects used in special environments. Nowadays, adhesives are developing rapidly and have a wide range of applications. [0003] Pressure-sensitive adhesive is a kind of adhesive that is sensitive to pressure. It does not need heat, curing agent or other means, and only need...

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
IPC IPC(8): C09J133/08C09J131/04C09J7/38C08F220/18C08F220/06C08F220/20C08F218/08C08F216/36
CPCC08F218/08C08F220/18C09J131/04C09J133/08C09J7/381C08F220/1804C08F220/06C08F220/20C08F220/1808C08F216/36
Inventor 贺金梅张晓勇白永平岳利培邓庆瑞殷晓芬
Owner HARBIN INST OF TECH WUXI RES INST OF NEW MATERIALS
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