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Thermal-aging anti-adhesion-failure hot-melt pressure-sensitive adhesive and preparation method thereof

A heat-aging, hot-melt technology, applied in the direction of adhesive types, adhesives, mineral oil hydrocarbon copolymer adhesives, etc., can solve the problem of inability to achieve waterproof effect, failure to meet performance requirements, and decreased peel strength of bonded aluminum plates, etc. Problems, achieve excellent UV aging resistance, increase wetting effect, and increase adhesion

Active Publication Date: 2018-12-21
HUIZHOU NENGHUI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of pressure-sensitive adhesive also often has a sharp drop in the peeling strength of the bonded aluminum plate after heat aging, which cannot meet the performance requirements of the national standard GB / T 23260-2009 "Waterproof Coiled Material with Self-Adhesive Layer", and cannot achieve the best performance. waterproof effect

Method used

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  • Thermal-aging anti-adhesion-failure hot-melt pressure-sensitive adhesive and preparation method thereof
  • Thermal-aging anti-adhesion-failure hot-melt pressure-sensitive adhesive and preparation method thereof
  • Thermal-aging anti-adhesion-failure hot-melt pressure-sensitive adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1 provides a heat-aging non-sticky hot-melt pressure-sensitive adhesive and a preparation method thereof.

[0040] The raw materials (see Table 1) of the heat-aging non-viscosity hot-melt pressure-sensitive adhesive include:

[0041]

[0042] Described thermoplastic elastomer is the mixture that the mass ratio of SEBS and SEPS is 3:3;

[0043] Described hydrogenated synthetic resin is perhydrogenated C5 petroleum resin;

[0044] The antioxidant is tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol ester.

[0045] The preparation method of the heat aging non-sticky hot-melt pressure-sensitive adhesive comprises:

[0046] Add butyl rubber, SEBS, SEPS, liquid polyisobutylene rubber and antioxidant into the kneader according to the required ratio; then, slowly heat to 150 ° C, stir until all the materials are melted, and the reaction is stable for 5 minutes; then, in Under stirring, add the remaining other materials according to the re...

Embodiment 2

[0048] Embodiment 2 provides a hot-melt pressure-sensitive adhesive that does not lose viscosity after heat aging and a preparation method thereof.

[0049] The raw materials (see Table 1) of the heat-aging non-viscosity hot-melt pressure-sensitive adhesive include:

[0050]

[0051] Described thermoplastic elastomer is the mixture that SEBS and SEPS mass ratio are 4:2;

[0052] Described hydrogenated synthetic resin is perhydrogenated C9 petroleum resin;

[0053] The antioxidant is tris[2.4-di-tert-butylphenyl]phosphite.

[0054] The preparation method of the heat aging non-sticky hot-melt pressure-sensitive adhesive comprises:

[0055]Add butyl rubber, SEBS, SEPS, liquid polyisobutylene rubber and antioxidant into the kneader according to the required ratio; then, slowly heat to 155 ° C, stir until all the materials are melted, and the reaction is stable for 8 minutes; then, in Under stirring, add the remaining other materials according to the required ratio, and keep ...

Embodiment 3

[0057] Embodiment 3 provides a hot-melt pressure-sensitive adhesive without loss of viscosity after heat aging and a preparation method thereof.

[0058] The raw materials (see Table 1) of the heat-aging non-viscosity hot-melt pressure-sensitive adhesive include:

[0059]

[0060] Described thermoplastic elastomer is the mixture that SEBS and SEPS mass ratio are 3:1;

[0061] Described hydrogenated synthetic resin is perhydrogenated C5 petroleum resin;

[0062] The antioxidant is β-(3,5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate.

[0063] The preparation method of the heat aging non-sticky hot-melt pressure-sensitive adhesive comprises:

[0064] Add butyl rubber, SEBS, SEPS, liquid polyisobutylene rubber and antioxidant into the kneader according to the required ratio; then, slowly heat to 160 ° C, stir until all the materials are melted, and the reaction is stable for 10 minutes; then, in Under stirring, add the remaining other materials according to the requ...

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Abstract

The invention relates to a thermal-aging anti-adhesion-failure hot-melt pressure-sensitive adhesive and a preparation method thereof. The thermal-aging anti-adhesion-failure hot-melt pressure-sensitive adhesive is prepared from the following raw materials in parts by weight: 15 to 35 parts of butyl rubber, 10 to 20 parts of thermoplastic elastomer, 25 to 35 parts of synthetic resin hydride, 25 to35 parts of rubber plasticizer and 0.3 to 1 part of antioxidant, wherein the thermoplastic elastomer is a mixture of a styrene-ethylene-butylene-styrene (SEBS) segmented copolymer and a styrene-ethylene-propylene-styrene (SEPS) segmented copolymer. The SEBS and SEPS are added into the butyl rubber, a proper amount of SEBS and SEPS of appropriate types is added particularly at the same time, and the raw materials together with hydrogenated synthetic resin, the rubber plasticizer and the antioxidant are prepared into the hot-melt pressure-sensitive adhesive of a specific formula. The hot-melt pressure-sensitive adhesive still has higher peeling strength, high substrate adhesive property and thermal-aging anti-adhesion-failure effect.

Description

technical field [0001] The invention relates to the technical field of hot-melt pressure-sensitive adhesives, in particular to a hot-melt pressure-sensitive adhesive without loss of viscosity due to thermal aging and a preparation method thereof. Background technique [0002] Since the publication of GB 50108-2008 "Technical Specifications for Waterproofing of Underground Engineering" and GB / T 23260-2009 "Waterproof Membrane with Self-adhesive Layer", the application fields of polymer self-adhesive waterproof membranes have become wider and wider. The traditional hot-melt pressure-sensitive adhesive with self-adhesive layer waterproof membrane mainly uses thermoplastic styrene-butadiene rubber SIS (styrene-isoprene-styrene block copolymer) as the base material, and then supplemented with various additives to meet Various performance requirements, but the peel strength of the bonded aluminum plate drops sharply after heat aging. [0003] At present, there are also hot-melt p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/22C09J153/02C09J123/20C09J157/02
CPCC08L2201/08C08L2205/025C08L2205/035C08L2207/04C09J123/22C08L53/025C08L23/22C08L57/02
Inventor 汤仪标江强吴兆辉杜敏耀
Owner HUIZHOU NENGHUI CHEM CO LTD
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