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Whisker material modified double-component color waterproof polyurethane coating and preparing process thereof

A polyurethane waterproof, two-component technology, used in polyurea/polyurethane coatings, antifouling/underwater coatings, coatings, etc., can solve the problems of difficult to stabilize product performance, endanger human health, and low quality indicators, and achieve extended The effect of high sex, bright color and good dispersion

Inactive Publication Date: 2003-10-29
HONGFU LAIYIN SCI & TECH DEV BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest feature of this kind of material is that the product performance is difficult to stabilize and the quality index is low
At the same time, tar contains naphthalene, anthracene, pyridine, phenol and other toxic substances, which have a strong smell during use, pollute the environment and endanger human health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1) Preparation of component A: Add 70% of polyether diol with a molecular weight of 2000 based on the total amount of component A into the reaction kettle, stir at 80-100°C, vacuumize and dehydrate for 1-3 hours, Cool to 40-60°C, add 30% diisocyanate, react at 70-90°C for 2-3 hours, vacuumize and degas, cool to room temperature for later use.

[0025] 2) Preparation of component B: Add 40% of polyether triol with a molecular weight of 3000 based on the total amount of component B, vacuum dehydrate at 95-105°C for 1-3 hours, add 3% of whisker material, and then stir at high speed And after adding, add 3,3'-dichloro-4,4'diaminodiphenylmethane 4.0%, dioctyl phthalate 25%, talcum powder 20%, silica powder 3%, iron red 4.0% and 1% lead naphthenate, stir and mix, heat up to 80-95°C, vacuumize, dehumidify for 1-2 hours, cool to room temperature for later use.

[0026] 3) Preparation of polyurethane waterproof layer: Mix component A and component B in the polyurethane waterpro...

Embodiment 2

[0028] 1) Preparation of component A: Add 40% of polyether diol with a molecular weight of 2000 and 32% of polyether diol with a molecular weight of 1000 based on the total amount of component A into the reaction kettle, at 80-100°C Stir, vacuum dehydrate and degas for 1-3 hours, cool to 40-60°C, add 28% diisocyanate, react at 70-90°C for 2-3 hours, then vacuumize and degas, cool to room temperature for later use.

[0029] 2) Preparation of component B: based on the total amount of component B, take 34% of polyoxypropylene-refined castor oil polyol with a molecular weight of 3000, vacuumize and dehydrate at 95-105°C for 1-3 hours, and add 5% of whisker material , then high-speed stirring and adding, add 3,3'-dichloro-4,4'diaminodiphenylmethane 2.5%, dioctyl phthalate 18%, kaolin 35%, silicon dioxide powder 1% , 4.0% lemon yellow-phthalocyanine green and 0.5% lead isooctanoate, stir and mix, heat up to 80-95° C., vacuumize, dehumidify for 1-2 hours, cool to room temperature for...

Embodiment 3

[0032] 1) Preparation of component A: 34% of polyoxypropylene-refined castor oil polyol with a molecular weight of 2000 and 36% of polyether diol with a molecular weight of 1000 based on the total amount of component A were added to the reaction kettle, and at 80 Stir at -100°C, vacuum dehydrate and degas for 1-3 hours, cool to 40-60°C, add 30% diisocyanate, react at 70-90°C for 2-3 hours, then vacuumize and degas, cool to room temperature for later use .

[0033] 2) Preparation of component B: Add 32% of polyether triol with a molecular weight of 3000 based on the total amount of component B, vacuum dehydrate at 95-105°C for 1-3 hours, add 1% of whisker material, and then stir at high speed And after adding, add 3,3'-dichloro-4,4'diaminodiphenylmethane 3.0%, chlorinated paraffin oil 30%, talcum powder 26%, silicon dioxide powder 3%, iron red 4.0% and 1% lead naphthenate, stirred and mixed, heated to 80-95°C, vacuumed, dehumidified for 1-2 hours, cooled to room temperature fo...

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PUM

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Abstract

A dual-component water-proof color polyurethane paint modified by crystal whisker material is prepared through vacuumizing, dewatering and degassing polyether biol, adding diisocyanate, vacuumizing to obtain polyurethane elastomer A, vacuumizing and dewatering polyether triol, adding crystal whisker material, 3,3'-dichloro-4,4'-diaminodiphenyl methane, plasticizer, inorganic filler, the mixture of iron red or lemon yellow and phthalocyanine green, and metallic carboxylate as catalyst, stirring, vacuumizing to obtain polyurethane elastomer B, and proportional mixing A with B. Its advantages are high elasticity, elongation and adhesion, high resistance to corrosion and ageing, and no pollution.

Description

Technical field [0001] The invention relates to polymer composite materials, in particular to a two-component colored polyurethane waterproof coating modified by whisker materials and a preparation method thereof. Background technique [0002] At present, the two-component polyurethane waterproof material is known to first use toluene diisocyanate TDI, polyether diol and organic diluent to make a polyurethane prepolymer (commonly known as component A); Cross-linking agent polyether polyol, butanediol of diol, diamine MOCA and tar or asphalt (commonly known as component B) are mixed, and then polymerized by catalyst to make polyurethane elastomer. The formulas of polyurethane elastomers used as waterproof materials by various manufacturers in our country continue to use the formulas of tar polyurethane waterproof coatings and asphalt polyurethane waterproof coatings. The biggest feature of this kind of material is that the product performance is difficult to stabilize and th...

Claims

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Application Information

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IPC IPC(8): C09D5/16C09D175/08
Inventor 黄广清宋广清张霞王亚峰
Owner HONGFU LAIYIN SCI & TECH DEV BEIJING
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