Hot-melt pressure-sensitive adhesive and preparation method thereof

A hot-melt pressure-sensitive adhesive and molten material technology, used in adhesives, adhesive additives, polymer adhesive additives, etc. problem, to achieve the effect of good adhesion, improved high temperature resistance and improved wettability

Active Publication Date: 2021-01-12
广东凯盛新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, when the tire is running at high speed, it is easy to generate heat and generate high temperature, so that the adhesive in the sound-absorbing material loses its viscosity, and the adhesive in the sound-absorbing material is easy to fall off under low temperature conditions
In addition, traditional tire sound-absorbing material adhesives cannot have the effect of run-flat tires and better sound-absorbing effects on tires
That is to say, the adhesives of traditional tire sound-absorbing materials have the problems of poor cold-stick bonding firmness, poor high and low temperature resistance, poor sound-absorbing effect, and inability to prevent run-flat tires.

Method used

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  • Hot-melt pressure-sensitive adhesive and preparation method thereof
  • Hot-melt pressure-sensitive adhesive and preparation method thereof
  • Hot-melt pressure-sensitive adhesive and preparation method thereof

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preparation example Construction

[0045] In order to better understand the hot-melt pressure-sensitive adhesive of the present invention, the present application also provides a preparation method of the hot-melt pressure-sensitive adhesive. The preparation method of the above-mentioned hot-melt pressure-sensitive adhesive comprises the following steps: mixing styrene-isoprene-styrene block copolymer, SEBS thermoplastic elastomer, rubber plasticizer, liquid polyisobutylene rubber and antioxidant operation to obtain a hot-melt pressure-sensitive adhesive mixed material; heat the hot-melt pressure-sensitive adhesive mixed material to a predetermined temperature, and perform the first stirring operation on the hot-melt pressure-sensitive adhesive mixed material in a vacuum state to obtain a hot-melt pressure-sensitive adhesive mixed material Pressure-sensitive adhesive melting material; adding rosin modified tackifying resin, terpene tackifying resin and coupling agent into the hot-melt pressure-sensitive adhesive...

Embodiment 1

[0055] Weigh respectively 200 g of styrene-isoprene-styrene block copolymer, 50 g of hydrogenated styrene-butadiene block copolymer, 10 g of naphthenic oil, 100 g of liquid polyisobutylene rubber and tetrakis [β-(3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester 5g, the styrene-isoprene-styrene block copolymer, hydrogenated styrene-butadiene block copolymerization material, naphthenic oil, liquid polyisobutylene rubber and tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol ester are added to the container for mixing, and then the above mixture is poured into the reaction Heating in the kettle, slowly heating to 140° C. and then starting to stir, stirring in a vacuum state until all the materials are melted, and then continuing the reaction to stabilize for 5 minutes. Then add 250g rosin modified tackifying resin, 100g polymerized terpene resin, 50g terpene styrene resin and 3g amine coupling agent, and stir while adding, and stir i...

Embodiment 2

[0057] Weigh respectively 350g of styrene-isoprene-styrene block copolymer, 150g of hydrogenated styrene-butadiene block copolymer, 150g of paraffin oil, 200g of liquid polyisobutylene rubber and tris[2.4-di-tert-butyl Phenyl] phosphite 10g, the styrene-isoprene-styrene block copolymer, hydrogenated styrene-butadiene block copolymer, paraffin oil, liquid polyisobutylene rubber and three [ 2. Add 4-di-tert-butylphenyl] phosphite into the container for mixing, then pour the above mixture into the reaction kettle for heating, slowly heat to 170°C and start stirring, and stir under vacuum until all the materials are melted , continue the reaction to stabilize for 20 minutes. Then add 350g rosin modified tackifying resin, 150g polymerized terpene resin, 100g terpene phenolic resin and 10g epoxy coupling agent, and stir while adding, and stir in a vacuum state for 60 minutes. After stirring, the melted hot-melt pressure-sensitive adhesive is cooled to obtain a molded hot-melt press...

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Abstract

The invention provides a hot-melt pressure-sensitive adhesive and a preparation method thereof. The hot-melt pressure-sensitive adhesive is prepared from 20 to 35 parts of a styrene-isoprene-styrene block copolymer, 5 to 15 parts of an SEBS thermoplastic elastomer, 10 to 20 parts of a liquid polyisobutylene rubber, 10 to 15 parts of a rubber plasticizer, 25 to 35 parts of rosin modified tackifyingresin, 0.5 to 1 part of an antioxidant and 0.3 to 1 part of a coupling agent. The hot-melt pressure-sensitive adhesive is good in adhesion performance, good in high and low temperature resistance andgood in silencing effect and has a tire burst prevention effect on a tire.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a hot-melt pressure-sensitive adhesive and a preparation method thereof. Background technique [0002] Vehicle driving noise is one of the main sources of traffic noise. As the only part of the vehicle in contact with the ground, the tires generate noise that directly affects the ride comfort of the vehicle. And the noise is too big, also can affect the driver's attention. There are many ways to reduce the noise generated by the friction between the tire and the ground. The most commonly used methods are changing the tire texture structure or bonding a layer of polyurethane sound-absorbing sponge inside the tire to silence the cavity noise generated during the driving process of the vehicle. Contain noise at its source. [0003] However, because the tire is mainly made of rubber, polymer, vulcanizing agent, carbon black, softening oil and other chemical substances through a c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J153/02C09J11/08
CPCC09J153/02C09J11/08C08L2205/035C08L2205/02C08L53/025C08L93/04
Inventor 胡钊华
Owner 广东凯盛新材料科技有限公司
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