Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of preparation method of low temperature pressure sensitive adhesive

A pressure-sensitive adhesive and low-temperature technology, which is applied in the field of pressure-sensitive adhesives, can solve problems such as reducing the adhesive force of the adhesive, achieve excellent high-temperature performance, and solve the effect of low-temperature initial sticking problems

Active Publication Date: 2020-02-04
BEIJING YISIDE LOGISTICS TECH
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Over time, small molecules of pressure-sensitive adhesive migrate to the interface, which can significantly reduce the adhesion of the adhesive

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
  • A kind of preparation method of low temperature pressure sensitive adhesive
  • A kind of preparation method of low temperature pressure sensitive adhesive
  • A kind of preparation method of low temperature pressure sensitive adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Take 30g of 2-ethylhexyl acrylate, 15g of n-butyl acrylate, 5g of hydroxyethyl acrylate and 90g of toluene in a three-neck flask, pass nitrogen gas to remove oxygen for 1min, raise the temperature to 62°C for 10min, add 0.12 g initiator AIBN, react for 4h; then raise the temperature to 65°C for 20h. The low-temperature pressure-sensitive adhesive can be obtained after discharging.

[0034] The prepared glue is coated with a cross-linking agent to obtain a double-sided 75um tissue paper tape. At -10°C, according to the initial tack test method of GB / T31125-2014 adhesive tape, the initial tack of the ring method tape is 35N .

[0035]

[0036]

Embodiment 2

[0038] Take 35g of 2-butylhexyl acrylate, 10g of methyl acrylate, 5g of hydroxyethyl acrylate and 80g of ethyl acetate in a three-necked flask, pass through nitrogen to remove oxygen for 1min, raise the temperature to 65°C for 10min, add 0.22g initiator BPO, react for 4h; then raise the temperature to 70°C for 20h. The low-temperature pressure-sensitive adhesive can be obtained after discharging.

[0039] The prepared glue is coated with a cross-linking agent to obtain a double-sided 75um tissue paper tape. At -10°C, according to the initial tack test method of GB / T31125-2014 adhesive tape, the initial tack of the ring method tape is 30N .

[0040]

[0041]

Embodiment 3

[0043] Take 35g of 2-ethylhexyl acrylate, 5g of 3 ethylheptyl methacrylate, 5g of methyl acrylate, 5g of acrylic acid and 80g of toluene in a three-necked flask, pass through nitrogen to remove oxygen for 1min, and raise the temperature to Keep the temperature at 65°C for 10min, add 0.25g of initiator BPO, and react for 4h; then raise the temperature to 70°C for 20h. The low-temperature pressure-sensitive adhesive can be obtained after discharging.

[0044] The prepared glue was coated with a cross-linking agent to obtain a 50um PET tape. At -10°C, according to the initial tack test method of GB / T31125-2014 adhesive tape, the initial tack of the ring method tape was 27N.

[0045]

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

PropertyMeasurementUnit
glass transition temperatureaaaaaaaaaa
softening pointaaaaaaaaaa
peel strengthaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the field of crosslinking agents, and in particular relates to a preparation method of a low-temperature pressure-sensitive adhesive. The specific steps are: mixing C8-C10 branched acrylic acid monomer (methacrylic acid monomer), functional monomer, initiator, and solvent in a certain proportion, and placing them in a water bath container at a specific temperature for complete reaction. The prepared polymer has good initial tack in low temperature environment. In the environment of -20°C-60°C, its adhesive force can be well maintained. Compared with traditional acrylic pressure-sensitive adhesives, it significantly improves the operability of the tape in low temperature environments.

Description

technical field [0001] The invention belongs to the field of pressure-sensitive adhesives, and relates to a method for preparing a low-temperature pressure-sensitive adhesive. The pressure-sensitive adhesive has relatively high initial tack and persistent tack in a low-temperature environment, and can be used for preparing single-sided adhesive tapes, tissue paper tapes, label adhesives, and the like. Background technique [0002] Pressure-sensitive adhesive is a pressure-sensitive adhesive with a certain degree of self-adhesiveness. When a certain pressure is applied to the tape, it can have good stickiness. Pressure-sensitive adhesives usually have good initial tack at room temperature and higher temperatures, but in low-temperature environments, their initial tack is poor, and in extreme environments (-10°C and lower), there is even no tack. [0003] CN95194939.X discloses a pressure-sensitive adhesive, comprising: (a) a pressure-sensitive adhesive polymerized by emulsion...

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 Patents(China)
IPC IPC(8): C09J133/08C08F220/18C08F220/14C08F220/20C08F220/06
CPCC09J133/064C09J133/14C08F220/18C08F220/1808C08F220/1811C08F220/1809C08F220/14C08F220/06C08F220/1804C08F220/20
Inventor 常江
Owner BEIJING YISIDE LOGISTICS TECH