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Flame retardant butyl pressure sensitive adhesive

A pressure-sensitive adhesive, butyl technology, applied in the field of pressure-sensitive adhesives, can solve the problems of poor heat resistance, adhesion and stickiness, etc., achieve excellent flame retardancy, high tensile strength, and improve heat resistance Effect

Active Publication Date: 2021-09-24
HUIZHOU NENGHUI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, traditional pressure-sensitive adhesives also have the disadvantages of poor heat resistance, adhesion and stickiness.

Method used

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  • Flame retardant butyl pressure sensitive adhesive
  • Flame retardant butyl pressure sensitive adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0029] In order to better illustrate the above-mentioned flame-retardant butyl pressure-sensitive adhesive, so as to better understand the concept of the above-mentioned flame-retardant butyl pressure-sensitive adhesive. In one embodiment, a flame-retardant butyl pressure-sensitive adhesive includes the following components in parts by mass: 20-35 parts of plasticizer, 20-25 parts of butyl adhesive, 3-10 parts of heat-resistant filler, and 3-10 parts of flame-retardant filler 6-20 parts, 5-15 parts of flame retardant, 1-5 parts of stabilizer and 20-30 parts of tackifying resin. It should be noted that a suitable amount of plasticizer, butyl adhesive, stabilizer and tackifying resin can be combined to form a butyl pressure sensitive adhesive with high tensile strength, high elasticity and high viscosity. Among them, butyl adhesive mainly contains butyl rubber, which provides cohesion, strength and heat resistance for butyl pressure-sensitive adhesives. Plasticizers reduce the ...

Embodiment 1

[0056] S111, in a vacuum environment at a temperature of 170 ° C, for 10kg butyl rubber, 10kg bromobutyl rubber, 5kg calcium carbonate, 2kg talcum powder, 3kg calcined kaolin, 0.5kg2,6-tertiary butyl-4-methyl Base phenol, 0.5kg 2-phenylbenzimidazole-5-sulfonic acid and 28kg polyisobutene were stirred for 1h at a stirring rate of 50rpm / min, so that each component was completely melted to obtain a butyl rubber mixture;

[0057] S121, then add 5 kg of petroleum resin, 15 kg of phenolic resin, 5 kg of magnesium hydroxide, 5 kg of aluminum hydroxide and 10 kg of zinc borate into the butyl rubber mixture in a vacuum environment at a temperature of 145° C., at a rate of 60 rpm / min. Stirring at a stirring rate of 0.5h, so that each component is completely melted to obtain a butyl pressure-sensitive adhesive solution;

[0058] S131, then add 4kg of brominated diphenylethane, 1kg of antimony trioxide and 7kg of chlorinated paraffin to the butyl pressure-sensitive adhesive solution in a ...

Embodiment 2

[0060] S112, in a vacuum environment at a temperature of 150 ° C, for 10kg butyl rubber, 15kg bromobutyl rubber, 1kg calcium carbonate, 1kg talcum powder, 1kg calcined kaolin, 3kg2,6-tertiary butyl-4-methyl Phenol, 2kg 2-phenylbenzimidazole-5-sulfonic acid and 16kg polyisobutylene were carried out, stirred at a stirring rate of 70rpm / min for 0.5h, so that each component was completely melted, and a butyl rubber mixture was obtained;

[0061] S122, then add 10kg of petroleum resin, 20kg of phenolic resin, 1kg of magnesium hydroxide, 1kg of aluminum hydroxide and 4kg of zinc borate into the butyl rubber mixture in a vacuum environment at a temperature of 155°C, at a rate of 40rpm / min Stirring at a stirring speed for 1 h, so that each component is completely melted to obtain a butyl pressure-sensitive adhesive solution;

[0062] S132, then add 13kg of brominated diphenylethane, 2kg of antimony trioxide and 4kg of chlorinated paraffin to the butyl pressure-sensitive adhesive solut...

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Abstract

The invention relates to the field of pressure-sensitive adhesives, and discloses a flame-retardant butyl pressure-sensitive adhesive, comprising the following components in parts by mass: 20-35 parts of plasticizer, 20-25 parts of butyl adhesive, 3 parts of heat-resistant filler ~10, 6~20 parts of flame retardant filler, 5~15 parts of flame retardant, 1~5 parts of stabilizer and 20~30 parts of tackifying resin. The heat-resistant filler is evenly embedded in the molecular network of butyl rubber, thereby improving the cohesive energy of butyl rubber and reducing the deformation and sliding of the molecular network of butyl rubber under high temperature, thereby improving the flame-retardant butyl pressure sensitive The heat resistance of the glue; the flame retardant filler and the flame retardant are synergistically flame retardant, and the flame retardant filler will decompose to produce water vapor when burning, which can reduce the surface temperature of the burning object and isolate part of the oxygen, thereby playing a flame retardant role; among them, the flame retardant When the agent is burning, it will capture the free radical OH‑ in the flame to suppress the flame. At the same time, it will be attached to the surface of the flame-retardant butyl pressure-sensitive adhesive to isolate the air.

Description

technical field [0001] The invention relates to the field of pressure-sensitive adhesives, in particular to a flame-retardant butyl pressure-sensitive adhesive. Background technique [0002] Pressure sensitive adhesives are a class of adhesives that are sensitive to pressure. It is mainly used in the preparation of pressure-sensitive adhesive tapes. The peeling force of general pressure-sensitive adhesive (the peeling force shown after the adhesive tape and the adhered surface are pressed and pasted) < the cohesive force of the adhesive (the force between the molecules of the pressure-sensitive adhesive) < the sticking force of the adhesive (the adhesive and the base Adhesion between materials). Such pressure-sensitive adhesives will not have degumming and other phenomena during use. [0003] Pressure-sensitive adhesives are usually organic polymer materials containing rubber, mineral oil and tackifying resins. Rubber, mineral oil, and tackifying resin are all flam...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J123/20C09J157/02C09J161/06C09J123/22C09J123/28C09J191/00C09J11/04C09J11/06C09J11/08
CPCC08K2003/2224C08K2003/2227C08K2003/265C08K2003/387C08L2201/02C08L2201/08C08L2205/025C08L2205/035C09J11/04C09J11/06C09J11/08C09J123/22C09J161/06C09J191/00C08L23/22C08L57/02C08L61/06C08L23/283C08L91/06C08K13/02C08K3/26C08K3/34C08K3/346C08K5/13C08K3/22C08K3/38C08K5/03C08K3/2279C08L45/00
Inventor 林旭生江强吴兆辉汤仪标梁鼎贤
Owner HUIZHOU NENGHUI CHEM CO LTD
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