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Butyl rubber hot-melt pressure-sensitive adhesive with enhanced cohesion strength and preparation method of butyl rubber hot-melt pressure-sensitive adhesive

A technology of hot-melt pressure-sensitive adhesive and butyl rubber, which is applied in the direction of adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the problems of poor bonding strength, inability to peel and rebond, etc., and achieve increased Cohesive strength, favorable coating adhesion processing, excellent weather resistance effect

Active Publication Date: 2017-08-18
成都微熵科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of poor bonding strength or irreversible vulcanization in the prior art that cannot be peeled and rebonded

Method used

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  • Butyl rubber hot-melt pressure-sensitive adhesive with enhanced cohesion strength and preparation method of butyl rubber hot-melt pressure-sensitive adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A cohesively reinforced butyl rubber hot-melt pressure-sensitive adhesive, its components and parts by weight are: 10% butyl rubber, 9% brominated butyl rubber, 5% polyisobutylene resin with a molecular weight of 40000, N-vinyl Imidazole 0.8%, hydrogenated C5 petroleum resin 20%, 2000 low molecular weight polyisobutylene oil 10%, kaolin 45%, 1076 antioxidant 0.2%;

[0028] First, bromobutyl rubber and butyl rubber are kneaded on the open mill respectively; then add the brominated butyl rubber and N-vinylimidazole to the kneader at 190°C; knead for 5 minutes and then add the kneading The final butyl rubber and polyisobutylene resin; after kneading for 5 minutes, add plasticizer polyisobutylene oil mixed with antioxidant 1076 and hydrogenated C5 petroleum resin; finally add kaolin, mix under vacuum for 2 hours, and then discharge.

Embodiment 2

[0030] A cohesively reinforced butyl rubber hot-melt pressure-sensitive adhesive, its components and parts by weight are: 17% butyl rubber, 10% bromobutyl rubber, 10% SIS resin, 0.5% 2-ethylimidazole, Terpene resin 18%, white oil 15%, calcium carbonate 29%, antioxidant 1010, 0.25% each of 168;

[0031] Firstly, bromobutyl rubber and butyl rubber are kneaded separately on the open mill; then add the kneaded bromobutyl rubber and 2-ethylimidazole into the kneader at 180°C; knead for 10 minutes and then add the kneading The final butyl rubber and SIS resin; after kneading for 2 minutes, add plasticizer white oil and terpene resin mixed with antioxidants 1010 and 168; finally add calcium carbonate, mix under vacuum for 1 hour, and then discharge.

Embodiment 3

[0033] A cohesively reinforced butyl rubber hot-melt pressure-sensitive adhesive, its components and parts by weight are: 19% butyl rubber, 13% brominated butyl rubber, 3% SBS resin, 0.1% 2-ethylimidazole, Hydrogenated C5 petroleum resin 24%, naphthenic oil 20%, calcium carbonate 10.5%, white carbon black 10%, antioxidant 1010, 168 each 0.2%;

[0034] Firstly, bromobutyl rubber and butyl rubber are kneaded separately on the open mill; then add bromobutyl rubber and 2-ethylimidazole after kneading to the kneader at 170°C; knead for 10 minutes and then add the kneading The final butyl rubber and SBS resin; after kneading for 3 minutes, add plasticizer naphthenic oil and hydrogenated C5 petroleum resin mixed with antioxidants 1010 and 168; finally add calcium carbonate and white carbon black, and mix for 1 hour under vacuum After discharge.

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Abstract

The invention discloses a butyl rubber hot-melt pressure-sensitive adhesive with enhanced cohesion strength. The butyl rubber hot-melt pressure-sensitive adhesive comprises components in percentage by weight as follows: 10%-35% of butyl rubber, 3%-20% of brominated butyl rubber, 3%-18% of other matrix resin, 0.05%-1% of imidazole derivatives, 10%-35% of tackifying resin, 5%-35% of a plasticizer, 18%-55% of reinforcing filler and 0.1%-0.6% of an antioxidant. The invention further discloses a preparation method. The butyl rubber hot-melt pressure-sensitive adhesive has reversible hot workability and has the capacity of coating and bonding one more time in the heating state.

Description

technical field [0001] The invention relates to the field of butyl rubber hot-melt pressure-sensitive adhesives, in particular to a cohesively enhanced butyl rubber hot-melt pressure-sensitive adhesive and a preparation method thereof. Background technique [0002] Pressure sensitive adhesive is a material that achieves interfacial bonding through pressure. According to the composition of the main resin, it can be divided into two types: rubber type and resin type. In addition to the main component of rubber, rubber-type pressure-sensitive adhesives also need to add tackifying resins, plasticizers, fillers, antioxidants, anti-aging agents and even vulcanizing agents. Auxiliary. Among rubber pressure-sensitive adhesives, butyl rubber pressure-sensitive adhesives have very good weather resistance and water tightness due to their less unsaturated double bonds and the presence of methyl groups. Therefore, it is mostly used as a waterproof and sealing adhesive material in const...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/22C09J11/04C09J11/06C09J11/08C08F8/30
CPCC08F8/30C08K2003/265C08L2205/02C08L2205/025C08L2205/035C09J11/04C09J11/06C09J11/08C09J123/22C08L15/02C08L23/20C08L57/02C08K3/346C08K5/1345C08L53/02C08L45/00C08L91/00C08K3/26C08K5/526C08K13/02C08K3/36C08K3/34C08K3/04C08F210/12
Inventor 何波兵
Owner 成都微熵科技有限公司
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