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Water-based polyurethane adhesive for bullet-proof vest composite material and preparation method of water-based polyurethane adhesive

A bulletproof composite material, water-based polyurethane technology, applied in the directions of adhesive additives, polymer adhesive additives, non-polymer adhesive additives, etc., can solve the problems of weak adhesion, poor thermal conductivity, and low tensile strength. , to achieve the effect of enhancing adhesion, improving thermal conductivity and improving tensile properties

Inactive Publication Date: 2017-05-17
俞明亮
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention proposes a water-based polyurethane adhesive for bulletproof composite materials and a preparation method thereof. Graphene oxide is used to modify the water-based polyurethane adhesive, which solves the problem of poor adhesion and low tensile strength when the water-based polyurethane adhesive is bonded to bulletproof composite materials. Small, technical issues with poor thermal conductivity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] A water-based polyurethane adhesive for bulletproof composite materials, its raw materials include by weight: 80 parts of polymer polyols, 40 parts of modified polyisocyanates, 2 parts of hydrophilic chain extenders, 0.05 parts of catalysts, 1 part of crosslinking agents, 1 part of 1 part of neutralizer, 1 part of thickener, 0.5 part of leveling agent;

[0057]The modified polyisocyanate is prepared by the following method: put graphene oxide in a solvent, and ultrasonically disperse it at an ultrasonic frequency of 4000 Hz to obtain a graphene oxide dispersion, add polyisocyanate, and pass through a protective gas. Stir to obtain modified polyisocyanate.

Embodiment 2

[0059] A water-based polyurethane adhesive for bulletproof composite materials, its raw materials include by weight: 140 parts of polymer polyol, 80 parts of modified polyisocyanate, 12 parts of hydrophilic chain extender, 0.1 part of catalyst, 6 parts of crosslinking agent, 6 parts 1 part neutralizer, 2 parts thickener, 1 part leveling agent;

[0060] The modified polyisocyanate is prepared by the following method: graphene oxide is placed in a solvent, ultrasonically dispersed at an ultrasonic frequency of 6000 Hz to obtain a graphene oxide dispersion, and polyisocyanate is added to control the weight ratio of graphene oxide and polyisocyanate The ratio is 1:8, the protective gas is introduced, and the modified polyisocyanate is obtained by stirring at a temperature of 90°C for 20 hours.

Embodiment 3

[0062] A water-based polyurethane adhesive for bulletproof composite materials, the raw materials of which include by weight: 130 parts of polyether polyol, 70 parts of modified polyisocyanate, 9 parts of 2,2-dimethylol propionic acid, 0.09 part of dilauric acid di Butyl tin, 5 parts of trimethylolpropane, 5 parts of ammonia water, 1.8 parts of polyurethane thickener, 0.9 parts of acrylic leveling agent;

[0063] The modified polyisocyanate is obtained by the following method: place graphene oxide in DMF, ultrasonically disperse for 1 hour at an ultrasonic frequency of 5000 Hz to obtain a graphene oxide dispersion, add hexamethylene diisocyanate, and control the concentration of graphene oxide and hexa The weight ratio of methylene diisocyanate is 1:40, and a protective gas is introduced, and the mixture is stirred at a temperature of 80° C. for 28 hours to obtain modified hexamethylene diisocyanate.

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PUM

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Abstract

The invention discloses water-based polyurethane adhesive for a bullet-proof vest composite material. The water-based polyurethane adhesive is prepared from the following raw materials: 80 to 140 parts of polymer polyols, 40 to 80 parts of modified polyisocyanates, 2 to 12 parts of hydrophilic chain-extending agent, 0.05 to 0.1 part of catalyst, 1 to 6 parts of cross-linking agent, 1 to 6 parts of neutralizing agent, 1 to 2 parts of thickener, and 0.5 to 1 part of flatting agent. The tensile performance of the adhesive is improved, the adhesive force when the adhesive is bonded with the bullet-proof composite material is increased, the heat conducting performance of the adhesive is improved, rapidness in heat dissipation can be realized, and the application requirement of the bullet-proof composite material can be met. The invention also discloses a preparation method of the water-based polyurethane adhesive for the bullet-proof composite material. The water-based polyurethane adhesive and the preparation method thereof are simple in process, low in production cost and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of water-based polyurethane adhesives, in particular to a water-based polyurethane adhesive for body armor composite materials and a preparation method thereof. Background technique [0002] The adhesives currently used in bulletproof composite materials are mainly solvent-based, such as SIS adhesives, which pollute the environment and do not meet environmental protection requirements. With the development of research and the enhancement of people's awareness of environmental protection, the research on water-based polyurethane adhesives has developed rapidly. It has the advantages of adjustable hardness, low temperature resistance, good flexibility, and high bonding strength. It can bond metals, non-metals, etc. A variety of materials for a wide range of uses. However, when the water-based polyurethane adhesive is bonded to the bulletproof composite material with low surface energy, there are still disadva...

Claims

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Application Information

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IPC IPC(8): C09J175/08C09J175/06C09J11/08C09J11/04C08G18/66C08G18/48C08G18/34C08G18/32C08G18/42
CPCC09J175/08C08G18/4018C08G18/4202C08G18/4238C08G18/4277C08G18/48C08G18/4812C08G18/4829C08G18/4854C08G18/6625C08G18/6692C08L2205/02C09J11/04C09J11/08C09J175/06
Inventor 俞明亮
Owner 俞明亮
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