Water-resistant flame-retardant polyurethane adhesive

A technology of polyurethane adhesives and polyester polyols, applied in the direction of adhesive additives, polymer adhesive additives, non-polymer adhesive additives, etc. Very good, water resistance is not very good, etc., to achieve the effect of isolating the transmission of oxygen and heat, improving thermal stability, and high bonding performance

Inactive Publication Date: 2017-12-26
安徽大松树脂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the water resistance of the existing polyurethane adhesives is not very good, and its cohesiveness will be greatly reduced in the presence of water. At the same time, as an organic material, its flame retardancy is not very good, which seriously limits the use of polyurethane adhesives. The use of agents in some special fields

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A water-resistant and flame-retardant polyurethane adhesive proposed by the present invention, its raw materials include by weight: 50 parts of polyester polyol, 10 parts of fluorine-containing polyether diol, 28 parts of bis-ferrocenyl alcohol, diphenylmethane -40 parts of 4,4'-diisocyanate, 10 parts of 3,3'-dichloro-4,4'-diaminodiphenylmethane, 0.2 parts of catalyst, 15 parts of chain extender, 2 parts of melamine, chitosan 5 parts, 3 parts of calcium alginate fiber, 5 parts of polyimide, 1 part of amino silicone oil, 8 parts of epoxy resin, 2 parts of aldehyde and ketone resin, 10 parts of attapulgite, and 100 parts of solvent.

Embodiment 2

[0015] A water-resistant and flame-retardant polyurethane adhesive proposed by the present invention, its raw materials include by weight: 30 parts of polyester polyol, 35 parts of fluorine-containing polyether diol, 5 parts of bis-ferrocenyl alcohol, diphenylmethane -60 parts of 4,4'-diisocyanate, 2 parts of 3,3'-dichloro-4,4'-diaminodiphenylmethane, 0.8 parts of catalyst, 3 parts of chain extender, 8 parts of melamine, chitosan 1 part, 15 parts of calcium alginate fiber, 1 part of polyimide, 5 parts of amino silicone oil, 2 parts of epoxy resin, 10 parts of aldehyde and ketone resin, 2 parts of attapulgite, 150 parts of solvent.

Embodiment 3

[0017] A water-resistant and flame-retardant polyurethane adhesive proposed by the present invention, its raw materials include by weight: 37 parts of polyester polyol, 30 parts of fluorine-containing polyether diol, 9 parts of bis-ferrocenyl alcohol, diphenylmethane -52 parts of 4,4'-diisocyanate, 4 parts of 3,3'-dichloro-4,4'-diaminodiphenylmethane, 0.7 parts of catalyst, 9 parts of dimethylthiotoluenediamine, 7 parts of melamine 1.9 parts of chitosan, 13 parts of calcium alginate fiber, 2.8 parts of polyimide, 3.6 parts of amino silicone oil, 5 parts of epoxy resin, 9 parts of aldehyde and ketone resin, 4.5 parts of attapulgite, 140 parts of acetone;

[0018] Wherein, the catalyst is a mixture of dibutyltin dilaurate and zinc isooctanoate, and the weight ratio of dibutyltin dilaurate and zinc isooctanoate is 1:8;

[0019] The attapulgite is γ-aminopropyltriethoxysilane modified attapulgite.

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PUM

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Abstract

The invention discloses a water-resistant flame-retardant polyurethane adhesive. The polyurethane adhesive contains the following raw materials in parts by weight: 30-50 parts of polyester polyol, 10-35 parts of fluorine-containing polyether diol, 5-28 parts of diferrocenyl alcohol, 40-60 parts of diphenylmethane-4,4'-diisocyanate, 2-10 parts of 3,3'-dichloro-4,4'-diaminodiphenyl methane, 0.2-0.8 part of a catalyst, 3-15 parts of a chain extender, 2-8 parts of melamine, 1-5 parts of chitosan, 3-15 parts of calcium alginate fibers, 1-5 parts of polyimide, 1-5 parts of amino silicon oil, 2-8 parts of epoxy resin, 2-10 parts of aldehyde ketone resin, 2-10 parts of attapulgite and 100-150 parts of a solvent. The water-resistant flame-retardant polyurethane adhesive provided by the invention has excellent water resistance and flame retardance, is high in curing speed and has high bonding strength with a substrate.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a water-resistant and flame-retardant polyurethane adhesive. Background technique [0002] Polyurethane adhesives refer to adhesives containing carbamate groups or isocyanate groups in the molecular chain, and its molecules contain isocyanate and carbamate groups with strong polarity and high chemical activity. Porous materials such as wood, leather, fabric, paper, ceramics, and materials with smooth surfaces such as metal, glass, rubber, plastics, etc. all have excellent chemical adhesion, and have good toughness, adjustability, and low temperature resistance. Has been widely used in furniture manufacturing, electrical and electronics, footwear, textiles, packaging and printing, aerospace and other fields. However, the water resistance of the existing polyurethane adhesives is not very good, and its cohesiveness will be greatly reduced in the presence of water. At the same ti...

Claims

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Application Information

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IPC IPC(8): C09J175/04C09J11/08C09J11/06C09J11/04C08G18/66C08G18/40C08G18/42C08G18/50C08G18/32
CPCC09J175/04C08G18/3212C08G18/4018C08G18/42C08G18/5015C08G18/6618C08G18/6622C08L2201/02C08L2201/08C08L2205/035C08L2205/16C09J11/04C09J11/06C09J11/08C08L5/04C08L79/08C08L83/08C08L63/00C08K9/06C08K3/346C08K5/34922
Inventor 朱立芳
Owner 安徽大松树脂有限公司
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