A kind of antifouling nano exterior wall paint and preparation method thereof

A kind of exterior wall paint, nano technology, applied in antifouling/underwater paint, coating, paint containing biocide, etc., can solve the problem of low cost, achieve the effect of dense film formation, regular arrangement and cost reduction

Inactive Publication Date: 2016-02-10
GUANGXI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The emulsion has excellent comprehensive performance and extremely low cost. It is a film-forming substance of a new type of water-based paint. In domestic patents, there is no report of using this emulsion to develop exterior wall paint.

Method used

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  • A kind of antifouling nano exterior wall paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Add 110g of pure water, 1g of wetting agent PE-100, 5g of dispersant 5027, 15g of propylene glycol, 1g of multifunctional additive AMP-95, 1g of defoamer BYK-024 into the dispersing tank, stir and disperse at a low speed of 400rpm Evenly; add 250g of titanium dioxide (Ishihara Industrial CR-95 in Japan), adjust the speed to 1500rpm, stir at high speed for about 30min, the fineness is <60μm, and set aside.

[0021] Weigh 550g of nano-composite emulsion and add it to the paint mixing kettle, add the slurry prepared in step 1 at a medium speed of 600rpm, and stir for 10 minutes; add 1g of fungicide LX-150, 1g of antifungal agent SKANEM-8, and 48g of premix ( Weigh 30g film-forming aid cs-12, 12g UV absorber 1130, 6g light stabilizer 292, mix well); adjust the speed to 800rpm, add thickener diluent I (SN636: water = 1: 5) 12g, and thickener diluent II (SN612: water = 1: 3) 4g drop by drop, finally Add 1g BYK-024, stir for 10min, filter and discharge to obtain the finish...

Embodiment 2

[0023] Add 110g of pure water, 1.2g of wetting agent PE-100, 6g of dispersant 5027, 12g of propylene glycol, 1g of multifunctional additive AMP-95, and 1.2g of defoamer BYK-024 into the dispersing tank, at a low speed of 400rpm Stir and disperse evenly; add 170g titanium dioxide (Japan Ishihara Industrial CR-95), 100g wollastonite powder, 30g calcined kaolin, adjust the speed to 1500rpm, stir at high speed for about 30min, and the fineness is <60μm.

[0024] Weigh 500g of nano-composite emulsion and add it to the paint mixing kettle, add the slurry prepared in step 1 at a medium speed of 600rpm, and stir for 10 minutes; add 1g of fungicide LX-150, 1g of antifungal agent SKANEM-8, and 48g of premix ( Weigh 30g film-forming aid cs-12, 12g UV absorber 1130, 6g light stabilizer 292, mix well); adjust the speed to 800rpm, add thickener diluent I (SN636: water = 1: 5) 12g, and thickener diluent II (SN612: water = 1: 3) 4g drop by drop, finally Add 1.2g BYK-024, stir for 10min, f...

Embodiment 3

[0026] Add 110g of pure water, 1g of wetting agent PE-100, 5g of dispersant 5027, 15g of propylene glycol, 1g of multifunctional additive AMP-95, 1g of defoamer BYK-024 into the dispersing tank, stir and disperse at a low speed of 400rpm Evenly; add 250g of titanium dioxide (U.S. DuPont R902), adjust the speed to 1500rpm, stir at high speed for about 30min, the fineness is <60μm, and set aside.

[0027] Weigh 550g of nano-composite emulsion and add it to the paint mixing kettle, add the slurry prepared in step 1 at a medium speed of 600rpm, and stir for 10 minutes; add 1g of fungicide LX-150, 1g of antifungal agent SKANEM-8, and 48g of premix ( Weigh 30g film-forming aid cs-12, 12g UV absorber 1130, 6g light stabilizer 292, mix well); adjust the speed to 800rpm, add thickener diluent I (AcrysolTT-935: water = 1: 1) 4g, and thickener diluent II (SN612: water = 1: 3) 4g drop by drop , and finally add 1g BYK-024, stir for 10min, filter and discharge to obtain the finished pro...

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Abstract

The invention discloses an antifouling nano exterior wall coating and a preparation method thereof. The antifouling nano exterior wall coating is composed of the following components: 10-20% of water, 15-30% of rutile titanium dioxide, 0-15% of wollastonite powder, 0-5% of calcined kaolin, 30-60% of nano core-shell composite emulsion, 1-5% of coalescing agent, 0.5-2% of anti-freezing agent and 2.2-5.8% of small-dosage additive. The antifouling nano exterior wall coating and the preparation method thereof disclosed by the invention have the advantages that: 1. inorganic nano particles in the coating disclosed by the invention replace a part of polymers, thereby greatly reducing the use of organic oil resources, lowering the cost and improving the comprehensive performance of the coating; and 2. various performance indexes of the coating disclosed by the invention can meet the requirements of national standard GB / T9755-2001 superior products, the coating especially has excellent water resistance, alkali resistance, stain resistance and artificial aging resistance, and the wash resistance frequency of the coating is more than 10000.

Description

technical field [0001] The invention relates to the field of water-based exterior wall coatings, in particular to an antifouling nano exterior wall coating prepared by using a silica sol / acrylate nano core-shell composite emulsion as a main film-forming substance and a preparation method thereof. Background technique [0002] Silica sol, also known as silicic acid water glass, is an inorganic polymer polymetasilicate colloidal solution with water as the dispersed phase. The colloidal particles are mostly spherical or agglomerated. The diameter of the particles is generally 5-30nm. It is widely used. In the precision casting industry. Since silica sol loses water and forms a rigid microporous skeleton structure through dehydration and condensation of hydroxyl groups, it can also be used as a film-forming material for inorganic coatings alone. The coating film is dense, hard, acid and alkali resistant, heat resistant, and aging resistant. , non-toxic and other advantages, but...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D5/16C09D7/12
Inventor 庞起巫朝剑童张法苏涛
Owner GUANGXI UNIV
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