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Polyurethane coating construction base layer treatment agent and polyurethane coating construction base layer treatment method

A technology of polyurethane coating and base treatment agent, applied in the treatment of building materials, coating, marine engineering and other directions, can solve the problems of pinholes and bubbles, difficult construction, etc., achieve simple construction, excellent performance, improve pinholes and The effect of the bubble problem

Inactive Publication Date: 2018-05-15
XUZHOU WONIUSHAN NEW WATERPROOF MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems that pinholes and air bubbles are produced in the construction of existing polyurethane waterproof coatings, and it is difficult to construct on wet base surfaces.

Method used

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  • Polyurethane coating construction base layer treatment agent and polyurethane coating construction base layer treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Add 100g concentration to be 15% PVA aqueous solution, 50g NaHCO 3 , 10g TX-10, 250g H 2 O, adjust the temperature to 50-90°C, stir well; then add 75g (NH 4 ) 2 S 2 o 8 Aqueous solution; respectively add 50g of BA, MMA, ST, AM in the funnel, 3h dropwise addition; after continuing to keep warm for 1h, cool to room temperature, pour out the liquid material; add 200g of the gained liquid material into the mixing tank, keep The rotation speed is 300 rpm, stirring for 0.5h; then slowly add 200g of water into the mixing tank, and then stir for 0.5h; then add 5g of polydimethylsiloxane into the mixing tank to disperse for 10 minutes, and then put Increase the stirring speed to 600 rpm and add 2.5g of copper 8-hydroxyquinoline into the mixing tank and stir for 50 minutes, then the material can be packaged.

Embodiment 2

[0038] In the four-necked flask that condenser tube thermometer, dropping funnel, stirrer are housed, add 150g concentration be the PVA aqueous solution of 9%, 55g NaHCO 3 , 10g TX-10, 300g H 2 O, adjust the temperature to 50-90°C, stir well; then add 80g (NH 4 ) 2 S 2 o 8 Aqueous solution; respectively add 50g of BA, MMA, ST, AM in the funnel, and dropwise add in 3h; after continuing to keep warm for 1h, cool to room temperature, pour out the liquid material; add 250g of the gained liquid material into the mixing tank, keep The rotation speed is 300 rpm, stirring for 0.5h; then slowly add 250g of water into the mixing tank, and then stir for 0.5h; then add 15g of polydimethylsiloxane into the mixing tank to disperse for 10 minutes, and then put The stirring speed is increased to 600 rpm and 4g of copper 8-hydroxyquinoline is added to the mixing tank and stirred for 50 minutes, and then the material can be packaged.

Embodiment 3

[0040]In the four-necked flask that is equipped with condenser tube thermometer, dropping funnel, stirrer, add 200g concentration and be 5% PVA aqueous solution, 60g NaHCO 3 , 15g TX-10, 350g H 2 O, adjust the temperature to 50-90°C, stir well; then add 90g (NH 4 ) 2 S 2 o 8 Aqueous solution; respectively add 50g of BA, MMA, ST, AM in the funnel, and drop it in 3h; after continuing to keep warm for 1h, cool to room temperature, pour out the liquid material; add 300g of the gained liquid material into the mixing tank, keep The rotation speed is 300 rpm, stirring for 0.5h; then slowly add 300g of water into the mixing tank, and then stir for 0.5h; then add 30g of polydimethylsiloxane into the mixing tank to disperse for 10 minutes, and then put The stirring speed is increased to 600 rpm and 5g of copper 8-hydroxyquinoline is added to the mixing tank and stirred for 50 minutes, and then the material can be packaged.

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Abstract

The invention discloses a polyurethane coating construction base layer treatment agent and a polyurethane coating construction base layer treatment method. The polyurethane coating construction base layer treatment agent comprises, by weight, 40-60 parts of acrylic emulsion, 40-60 parts of water, 1-5 parts of defoaming agents and 0-1 part of mildew-proof agents. The polyurethane coating construction base layer treatment agent and the polyurethane coating construction base layer treatment method have the advantages that the shortcoming of incapability of carrying out construction due to moist of polyurethane waterproof coating base planes can be overcome by the aid of the prepared polyurethane coating construction base layer treatment agent; holes in cement base planes can be sufficiently filled up, base layer treatment can be prepared for polyurethane waterproof coating construction, and the problems of pin holes and bubble during polyurethane waterproof coating construction can be obviously solved.

Description

technical field [0001] The invention belongs to the field of polyurethane waterproof coatings, and more specifically relates to a polyurethane coating construction base treatment agent and a polyurethane coating construction base treatment method. Background technique [0002] Polyurethane coating is a kind of coating that can be directly applied. It is usually applied by scraping, roller coating or brushing. Generally, it is applied 2-3 times. After the previous layer is dry, the next layer is applied. The thickness is generally ≥1.5mm, which can be adjusted according to the project requirements, and the construction base surface must be flat, clean and dry. However, on the base surface near water, such as wet underground garages and dams, etc., it is humid for a long time and it is not easy to keep dry. The construction of polyurethane coatings is very difficult, and after the construction of general polyurethane waterproof coatings, especially in summer, many pinholes wil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/00C09D7/63C09D7/65C08F261/04C08F220/56C08F220/18C08F220/14C08F212/08E04G21/00E02B3/16
CPCC08F261/04C08L2201/08C09D151/003E02B3/16E04G21/00C08L83/04C08K5/3437C08F220/1804
Inventor 刘雪峰段鹏飞
Owner XUZHOU WONIUSHAN NEW WATERPROOF MATERIALS
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