Antiskid polyurethane paint and its prepn

A technology of polyurethane coatings and raw materials, applied in the direction of polyurea/polyurethane coatings, coatings, etc., to achieve the effects of enhancing self-leveling performance, preventing slipping when walking, and strong adhesion

Inactive Publication Date: 2003-11-05
INST OF AQUATIC LIFE ACAD SINICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A disadvantage of the currently known reactive diluents is that the polyisocyanate content of the coating composition has to be greatly increased in order to fully react with the reactive diluents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The amount of raw materials is parts by weight

[0028] Toluene diisocyanate (TDI) 29.98

[0029] Polyether N210 25.2375

[0030] (Molecular weight is 1000, hydroxyl value=100±10KOHmg / g)

[0031] Acetone 40

[0032] Trimethylolpropane 4.71

[0033] Dibutyltin dilaurate 0.05

[0034] Antioxidant 0.02

[0035] Benzoyl chloride 0.0025

[0036] In a four-neck round bottom flask equipped with a stirrer, a heating platform, a thermometer, a reflux condenser and an inert gas introduction tube, add acetone and polyether N210 according to the required amount, and heat to 100°C for dehydration for 6 hours. Then add trimethylolpropane, control the temperature at 145°C, stir, keep for 6 hours to fully dehydrate, cool down to 55°C, then add antioxidant and benzoyl chloride, then add toluene diisocyanate (TDI), exotherm to 70 ℃, the mixed system should be colorless, transparent or light yellow at this time, keep it for 4 hours and then add dibutyltin dilaurate. Raise the...

Embodiment 2

[0040] The amount of raw materials is parts by weight

[0041] Toluene diisocyanate (TDI) 24.8

[0042] Polyether N210 21.1

[0043] (Molecular weight is 1000, hydroxyl value=100±10KOHmg / g)

[0044] Acetone 30.0

[0045] Butyl acetate 20.0

[0046] Trimethylolpropane 3.90

[0047] Dibutyltin dilaurate 0.1

[0048] Antioxidant 0.05

[0049] Benzoyl chloride 0.05

[0050] In a four-neck round bottom flask equipped with a stirrer, a heating platform, a thermometer, a reflux condenser and an inert gas introduction tube, add acetone and polyether N210 according to the required amount, and heat to 100°C for dehydration for 6 hours. Then add trimethylolpropane, control the temperature at 145°C, stir, keep for 6 hours to fully dehydrate, cool down to 55°C, then add antioxidant and benzoyl chloride, then add toluene diisocyanate (TDI), exotherm to 70 ℃, the mixed system should be colorless, transparent or light yellow at this time, keep it for 4 hours and then add dibutyl...

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PUM

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Abstract

The antiskid polyurethane paint is prepared with tolylene diisocyanate, polyether N210, trihydroxymethyl propane, butyl acetate, acetone, dibutyltin dilaurate, benzoyl chloride, antioxidant, 1,2-propylene glycol and water absorbent, and through dewatering butyl acetate, acetone and polyether N210 in reactor at 90-100 deg.c; adding trihydroxymethyl propane into the reactor before heating and stirring to dewater; adding benzoyl chloride, antioxidant and tolylene diisocyanate, heating and adding dibutyltin dilauratel; reflux evaporating solvent butyl acetate or acetone; packing the prepolymer into paint tank; and mixing prepolymer, xylene or butyl acetate or acetone, 1,2-propylene glycol and water absorbent in certain proportion to obtain the paint. The paint has simple preparation process,strong adhesive force, high wear resistance, high weather resistance and other advantages.

Description

technical field [0001] The invention relates to an anti-slip polyurethane coating, which is suitable for the decoration and protection of floors in various environments, such as offices, living rooms, food, sports fields, airports, ships, machinery, chemical and pharmaceutical workshops, and also relates to anti-slip polyurethane coatings Process for the preparation of varnishes. Background technique [0002] At present, most of the existing products in China use epoxy resin or polyurethane as the binder, and use quartz sand, emery, titanium oxide and common rubber particles as the anti-skid coating. Most of these products cannot meet the requirements of high-strength use in terms of impact resistance, wear resistance and adhesion, and have defects such as fragility, shedding and short service life. [0003] The 89103796.9 invention discloses a double-layer ceramic tile with a ceramic surface layer with a pattern and a ceramic structure layer with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/08
Inventor 吴永红刘剑彤
Owner INST OF AQUATIC LIFE ACAD SINICA
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