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Single-component self-crosslinking waterborne polyurethane flame-retardant dispersion liquid as well as preparation method and application thereof

A water-based polyurethane and self-crosslinking technology, applied in the field of polyurethane, can solve the problems of emitting smoke, casualties, and the lack of self-extinguishing properties of one-component polyurethane coatings, achieving strong adhesion, long service life, and easy industrialization. production effect

Inactive Publication Date: 2019-01-15
吉林康众新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although one-component polyurethane coatings have the advantages of good mechanical properties, good water resistance and good heat and humidity resistance, but with people's further pursuit of high performance, the performance of one-component polyurethane coatings also needs to be strengthened, and one-component polyurethane coatings It is not self-extinguishing, and will emit smoke when burning, causing a large number of casualties

Method used

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  • Single-component self-crosslinking waterborne polyurethane flame-retardant dispersion liquid as well as preparation method and application thereof
  • Single-component self-crosslinking waterborne polyurethane flame-retardant dispersion liquid as well as preparation method and application thereof
  • Single-component self-crosslinking waterborne polyurethane flame-retardant dispersion liquid as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] One-component self-crosslinking water-based polyurethane flame retardant dispersion, consisting of 60 parts by weight of polyethylene adipate diol, 25 parts by weight of TDI, 3 parts by weight of compound flame retardant, 20 parts by weight of 3,4- Dihydroxyphenylalanine, 5 parts by weight of amphiphilic carbon nanodots, 3 parts by weight of wax oil modified activated carbon, 8 parts by weight of dimethylol butyric acid, 5 parts by weight of ethylene glycol, 1 part by weight of azodiiso Nitrile, 7.5 parts by weight of triethylamine, 0.5 part by weight of sodium lauryl sulfate, 1 part by weight of isooctyl phosphate and 150 parts by weight of water;

[0034] Wherein, the preparation method of wax oil modified activated carbon is as follows: 5g activated carbon is submerged in 10mL wax oil, ultrasonically dispersed uniformly, static for 5 minutes, filtered, the sediment is centrifugally deoiled, and air-dried;

[0035] The compound flame retardant is a mixture of zinc bor...

Embodiment 2

[0043] One-component self-crosslinking water-based polyurethane flame retardant dispersion, composed of 65 parts by weight of polybutylene adipate diol, 28 parts by weight of XDI, 6 parts by weight of compound flame retardant, 22 parts by weight of 3,4- Dihydroxyphenylalanine, 8 parts by weight of amphiphilic carbon nanodots, 4 parts by weight of wax oil modified activated carbon, 10 parts by weight of dimethylol butyric acid, 7 parts by weight of ethylene glycol, 1.5 parts by weight of azodiiso Butyronitrile, 9 parts by weight of triethylamine, 1 part by weight of sodium lauryl sulfate, 1.5 parts by weight of isooctyl phosphate and 180 parts by weight of water;

[0044] Wherein, the preparation method of wax oil modified activated carbon is as follows: 5g activated carbon is submerged in 10mL wax oil, ultrasonically dispersed uniformly, static for 5 minutes, filtered, the sediment is centrifugally deoiled, and air-dried;

[0045] The compound flame retardant is a mixture of z...

Embodiment 3

[0053] One-component self-crosslinking water-based polyurethane flame retardant dispersion, which is composed of 70 parts by weight of polyethylene glycol, 30 parts by weight of IPDI, 8 parts by weight of compound flame retardant, 25 parts by weight of 3,4-dihydroxyphenylalanine, 10 parts by weight of amphiphilic carbon nanodots, 5 parts by weight of wax oil modified activated carbon, 12 parts by weight of dimethylol butyric acid, 10 parts by weight of ethylene glycol, 2 parts by weight of azobisisobutyronitrile, 12 parts by weight of Ethylamine, 2 parts by weight of sodium lauryl sulfate, 2 parts by weight of isooctyl phosphate and 250 parts by weight of water;

[0054] Wherein, the preparation method of wax oil modified activated carbon is as follows: 5g activated carbon is submerged in 10mL wax oil, ultrasonically dispersed uniformly, static for 5 minutes, filtered, the sediment is centrifugally deoiled, and air-dried;

[0055] The compound flame retardant is a mixture of z...

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Abstract

The invention relates to a single-component self-crosslinking waterborne polyurethane flame-retardant dispersion liquid as well as a preparation method and application thereof, and belongs to the technical field of coatings. The technical problem that in the prior art, a single-component polyurethane coating is cured under the influence of humidity and temperature is solved, and the comprehensiveperformance of the single-component polyurethane coating is further improved. The dispersion liquid disclosed by the invention is prepared from, by weight, 60-70 parts of polyhydric alcohol, 25-30 parts of isocyanate, 2-8 parts of a compound flame retardant, 20-25 parts of 3,4-dihydroxyphenylalanine, 5-10 parts of amphiphilic carbon nanodots, 3-5 parts of wax oil modified activated carbon, 8-12 parts of dimethylolbutyric acid, 5-10 parts of ethylene glycol, 1-2 parts of azodiisobutyronitrile, 6-12 parts of triethylamine, 0.5-2 parts of lauryl sodium sulfate, 1-2 parts of isooctyl alcohol phosphate and 150-250 parts of water. The water-based polyurethane coating containing the dispersion liquid is good in mechanical property and good in weather resistance, strong in adhesive force, good incorrosion resistance, good in flame retardancy and simple in construction.

Description

technical field [0001] The invention belongs to the technical field of polyurethane, and in particular relates to a one-component self-crosslinking water-based polyurethane flame retardant dispersion and a preparation method and application thereof. Background technique [0002] Polyurethane coatings can be divided into two-component polyurethane coatings and one-component polyurethane coatings. Two-component polyurethane coatings are generally composed of isocyanate prepolymer (also called low molecular urethane polymer) and hydroxyl-containing resin, usually called curing agent component and main agent component. There are many varieties of this type of coating, and the application range is also very wide. According to the different components, it can be divided into acrylic polyurethane, alkyd polyurethane, polyester polyurethane, polyether polyurethane, epoxy polyurethane and other varieties. Generally, it has good mechanical properties, high solid content, and good per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/08C08G18/10C08G18/32C08G18/34C08G18/42C08G18/48C08K3/04C08K9/10C09D175/06C09D175/08C09D5/18C09D7/61
CPCC08G18/0823C08G18/10C08G18/3819C08G18/4238C08G18/4833C08G18/6659C08G18/6692C08K3/04C08K9/10C08K2201/011C08L2201/02C08L2205/035C09D5/18C09D7/61C09D175/06C09D175/08C08G18/348C08G18/3206C08L83/04C08K3/38
Inventor 周金向刘佳陈德昀
Owner 吉林康众新材料科技有限公司
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