Adhesive and adhesive tape

A technology of adhesives and pressure-sensitive adhesives, applied in the direction of adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the problems of insufficient bonding strength and unsatisfactory, and achieve firm adhesion knot, good aging resistance and consistent bond strength

Inactive Publication Date: 2019-05-21
新纶电子材料(常州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with ordinary pressure-sensitive adhesives, these low-surface-energy adhesives generally have a slightly higher bond strength, but only 500-1500gf / inch. The adhesive will not have sufficient bond strength
[0004] The Chinese patent application number 201110346864.5 discloses a tape for bonding low surface energy materials and its preparation method. The invention uses fluorine-containing acrylate monomers to synthesize a low surface energy acrylate pressure-sensitive adhesive, which can effectively bond Combined with low surface energy materials, such as PE and PP boards, but the bonding strength is only about 600gf / inch; the Chinese patent with the publication number CN108251040A discloses a low surface energy moisture-curable polyurethane hot melt adhesive and its preparation method. The invention discloses A low surface energy polyurethane hot melt adhesive has good wettability and temperature resistance, and can also effectively bond low surface energy materials such as PP, etc., but the bonding strength to PP materials is only about 1000gf / inch , unable to meet the needs of electronics and automotive applications with high bond strength requirements

Method used

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  • Adhesive and adhesive tape
  • Adhesive and adhesive tape
  • Adhesive and adhesive tape

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] This embodiment provides an adhesive that can be used to bond materials with different surface energies, and further provides a double-sided adhesive tape, which is obtained through the following steps:

[0036] 1) Prepare adhesives for bonding different surface energy materials: put 500g of solvent toluene into a 1000ml reaction bottle, then start the stirring device at a speed of 200rpm, and put in 90g of polymerized terpene resin and 20g of liquid terpene resin in turn while stirring , after it dissolves, add 70g of SIS and 30g of sliced ​​natural rubber in turn, raise the temperature to 40°C and continue stirring for 2h until it is completely dissolved, and finally add 5g of bridging agent (1,6-hexanediol diacrylate), 5g of light Initiator (1-hydroxycyclohexyl phenyl ketone) 0.25g, antioxidant (tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester) 1.5g, Light stabilizer UV-144 0.5g, stir for 30 minutes until it is evenly mixed, stop the s...

Embodiment 2

[0039] This embodiment provides an adhesive that can be used to bond materials with different surface energies, and further provides a double-sided adhesive tape, which is obtained through the following steps:

[0040] 1) Prepare adhesives for bonding different surface energy materials: put 500g of solvent toluene into a 1000ml reaction bottle, then start the stirring device at a speed of 200rpm, and put in 90g of polymerized terpene resin and 20g of liquid terpene resin in turn while stirring After it dissolves, add 70g of SIS and 30g of sliced ​​natural rubber in turn, raise the temperature to 40°C and continue stirring for 2h until it is completely dissolved, and finally add 8g of bridging agent (pentaerythritol triacrylate), 8g of photoinitiator (1- Hydroxycyclohexyl phenyl ketone) 0.25g, antioxidant (tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester) 1.5g, light stabilizer 2-[ 2-Hydroxy-3,5-bis(1,1-dimethylpropylphenyl)]-2H-benzotriazole 0....

Embodiment 3

[0043] This embodiment provides an adhesive that can be used to bond materials with different surface energies, and further provides a double-sided adhesive tape, which is obtained through the following steps:

[0044] 1) Prepare adhesives for bonding different surface energy materials: put 500g of solvent toluene into a 1000ml reaction bottle, then start the stirring device at a speed of 200rpm, and put in 90g of polymerized terpene resin and 20g of liquid terpene resin in turn while stirring After it dissolves, add 70g of SIS and 30g of sliced ​​natural rubber in turn, raise the temperature to 40°C and continue to stir for 2h until it is completely dissolved, and finally add 12g of bridging agent (1,6-hexanediol diacrylate, HDDA) in sequence , photoinitiator (Doublecure575) 0.25g, antioxidant (tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester) 1.5g, light stabilizer (double ( 1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate) 0.5g, stir for 30 min...

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Abstract

The invention discloses an adhesive. The raw materials of the adhesive comprise the following components in percentage by mass: 5 to 15 percent of SIS, 1 to 8 percent of natural rubber, 0.1 to 1.5 percent of a bridging agent, 8 to 15 percent of tackifying resin A, 1 to 5 percent of tackifying resin B, 0.01 to 0.05 percent of a photoinitiator, 0.1 to 0.5 percent of an antioxidant, 0.01 to 0.1 percent of a light stabilizer and 60 to 80 percent of a solvent, wherein the sum is 100 percent. The invention also discloses a double-sided adhesive tape. According to the adhesive disclosed by the invention, the bonding strength to a polar material is maintained to be high enough, meanwhile, the bonding strength of a pressure sensitive adhesive to a non-polar material is continuously improved, so that the bonding strength of the adhesive to the polar material and the non-polar material are consistent; firm bonding of the pressure sensitive adhesive to the polar and non-polar materials is ensured.The bonding force is excellent; the aging performance is good.

Description

technical field [0001] The invention relates to the technical field of adhesive tapes for electronic equipment, in particular to an adhesive and an adhesive tape. Background technique [0002] With the increasing development of electronics and automotive products, the requirements for functional materials are getting higher and higher, such as functional tapes and functional adhesives. At present, electronic products such as computers, mobile phones, Pads, and TVs on the market are being updated rapidly, the fuselage is getting thinner and the size of the display screen is getting larger and larger, and the requirements for the anchoring and bonding of the fuselage and the display screen are getting higher and higher. , and the surface energy of materials such as the fuselage and the display screen is quite different, and ordinary adhesives and tapes are not suitable for this bonding occasion; at the same time, with the popularity of family cars, the demand for aluminum-plas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/06C09J11/06C09J7/38C09J7/10
Inventor 夏有贵龙冲倪惠峰
Owner 新纶电子材料(常州)有限公司
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