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Binding agent with high fire resistance

An adhesive, high flame retardant technology, applied in the direction of adhesives, non-polymer adhesive additives, adhesive types, etc., can solve compatibility problems, limit the application range of adhesives, adhesive bonding Problems such as reduction in strength

Active Publication Date: 2014-03-26
SHANGHAI BANGZHONG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above problems, some people use flame retardants such as magnesium hydroxide, aluminum hydroxide or nitrogen-containing flame retardants or zinc borate, but the flame retardant effect of the above substances is not good, and a large amount needs to be added, which also brings The problem of compatibility greatly reduces the bonding strength of the adhesive, which limits the application range of the adhesive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A highly flame-retardant adhesive, comprising the following components by weight:

[0025] epoxy resin 100

[0026] Reactive diluent 5

[0027] Flame retardant 35

[0028] Hardener 15

[0029] The epoxy resin is o-cresol novolac type epoxy resin. The reactive diluent is butanediol diglycidyl ether. The curing agent is dicyandiamide latent curing agent. The flame retardant is polyphosphate / magnesium hydroxide nanocomposite particles. The particle has a core-shell structure, magnesium hydroxide is the inner core, and polyphosphate is the outer shell.

[0030] Weigh the raw materials in the above-mentioned adhesive: epoxy resin, diluent, flame retardant, curing agent, add the above-mentioned raw materials into the mixer in turn, vacuumize until the vacuum degree is -0.08~-0.05MPa, at 1000 rpm Stir for 2 hours, stir evenly, let it air naturally to room temperature, and seal the package to obtain a highly flame-retardant adhesive. The oxygen index of the obtained adh...

Embodiment 2

[0032] A highly flame-retardant adhesive, comprising the following components by weight:

[0033] epoxy resin 100

[0034] Reactive diluent 30

[0035] Flame retardant 25

[0036] Hardener 15

[0037] The epoxy resin is a novolak type epoxy resin. The reactive diluent is a mixture of ethylene glycol diglycidyl ether, butanediol diglycidyl ether, and 1,2-cyclohexanediol diglycidyl ether, with a mass ratio of 1:1:1. The curing agent is dicyandiamide latent curing agent. The flame retardant is polyphosphate / magnesium hydroxide nanocomposite particles. The particle has a core-shell structure, magnesium hydroxide is the inner core, and polyphosphate is the outer shell.

[0038] Weigh the raw materials in the above-mentioned adhesive: epoxy resin, diluent, flame retardant, curing agent, add the above-mentioned raw materials into the mixer in turn, vacuumize until the vacuum degree is -0.08~-0.05MPa, at 1000 rpm Stir for 2 hours, stir evenly, let it air naturally to room tempe...

Embodiment 3

[0040] A highly flame-retardant adhesive, comprising the following components by weight:

[0041] epoxy resin 100

[0042] Reactive diluent 25

[0043] Flame retardant 5

[0044] Hardener 4

[0045] The epoxy resin is a multifunctional epoxy-based epoxy resin. The reactive diluent is ethyl resorcinol diglycidyl ether. The curing agent is dicyandiamide latent curing agent. The flame retardant is polyphosphate / magnesium hydroxide nanocomposite particles. The particle has a core-shell structure, magnesium hydroxide is the inner core, and polyphosphate is the outer shell.

[0046] Weigh the raw materials in the above-mentioned adhesive: epoxy resin, diluent, flame retardant, curing agent, add the above-mentioned raw materials into the mixer in turn, vacuumize until the vacuum degree is -0.08~-0.05MPa, at 1000 rpm Stir for 2 hours, stir evenly, let it air naturally to room temperature, and seal the package to obtain a highly flame-retardant adhesive. The oxygen index of the...

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PUM

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Abstract

The invention relates to a binding agent with high fire resistance. The binding agent comprises components in parts by weight as follows: 5-50 parts of an epoxy resin 100 reactive diluent, 5-35 parts of a fire retardant and 4-15 parts of a curing agent, wherein the fire retardant is polyphosphate / magnesium hydrate nano-composite particles. The polyphosphate and most of base materials have good binding force through the polyphosphate / magnesium hydrate nano-composite particles, good compatibility is achieved between the polyphosphate and a resin system at the same time, and certain fire resistance is also achieved. Under the system, as the fire resistance is improved, certain binding strength can be guaranteed.

Description

technical field [0001] The invention relates to a highly flame-retardant adhesive. Background technique [0002] Adhesives are used in a wide range of fields. For example, in electronic appliances and other fields, the internal temperature of electrical appliances is very high. The adhesive used for bonding needs to have good flame retardancy. In the prior art, halogen-containing flame retardants are added to the system. The halogen-containing flame retardants have good compatibility with inorganic systems, but they will generate halogen gas during combustion, which has a great impact on the environment. . [0003] Flame retardants are divided into inorganic, organic (including bromine, organophosphorus, and chlorine) and others. Currently, the most widely used organic flame retardants are bromine compounds. However, when bromine compounds are burned, dioxins are easily produced. And other carcinogens, out of environmental considerations, developed countries such as Europe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J163/00C09J163/02C09J163/04C09J11/04
Inventor 毕宏海储江顺彭艳华欧阳贵程启山郑飞燕肖伏兰李南平赵凯欧阳圣
Owner SHANGHAI BANGZHONG NEW MATERIAL