Nanometer self-cleaning outer-wall latex paint and preparing method thereof

A nano self-cleaning, latex paint technology, applied in the field of coatings, can solve the problems of poor water resistance, difficult to clean, easy to crack, etc., and achieves the effects of good weather resistance, good adhesion, and reduced surface tension.

Inactive Publication Date: 2018-04-06
郑州科斗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional exterior wall latex paints often have problems such as poor water resistance, easy cracking, peeling, powder removal, discoloration, and difficulty in cleaning.

Method used

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  • Nanometer self-cleaning outer-wall latex paint and preparing method thereof
  • Nanometer self-cleaning outer-wall latex paint and preparing method thereof
  • Nanometer self-cleaning outer-wall latex paint and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A preparation method of nano titanium dioxide, comprising the following steps:

[0047] (1) Synthesis of star macromolecular initiator 21Br-β-CD:

[0048] Take 6.82g of β-cyclodextrin, dry it at 80°C for 12h under vacuum, then dissolve it in 60mL of N-methylpyrrolidone at room temperature, put it in an ice-water bath, and cool it to 0°C. Under this condition, Add 58g of 2-bromoisobutyryl bromide dropwise within 2h. After the dropwise addition, warm up to room temperature and continue to react for 24h to obtain a brown solution. Concentrate by distillation under reduced pressure, add 100mL of dichloromethane to dilute, and wash with 100mL of saturated aqueous sodium bicarbonate solution and 100 mL of deionized water were washed three times each, and the obtained organic phase was dried with anhydrous magnesium sulfate, then concentrated with a rotary evaporator, and finally precipitated in n-hexane below -20°C to obtain a white precipitate, which was dried in a vacuum ov...

Embodiment 2

[0072] A nano self-cleaning latex paint for exterior walls, comprising the following raw materials in parts by weight: 150 parts of water, 30 parts of propylene glycol, 1 part of wetting agent, 6 parts of dispersing agent, 2 parts of defoaming agent, 2 parts of preservative, film-forming 20 parts of additives, 10 parts of nano titanium dioxide, 230 parts of titanium dioxide, 100 parts of heavy calcium carbonate, 50 parts of wollastonite powder, 50 parts of kaolin, 320 parts of pure acrylic emulsion, 100 parts of silicone modified acrylic emulsion, multifunctional auxiliary 2 parts of agent, 2 parts of thickener, 1 part of leveling agent.

[0073] Described wetting agent is PE-100 wetting agent; Described dispersant is 5040 dispersant; Described defoamer is NXZ defoamer; Described preservative is LXE preservative; The film aid is alcohol ester twelve film-forming aid; the thickener is HASE thickener H-609; the leveling agent is polyurethane leveling agent RM-2020; the multifunc...

Embodiment 3

[0080] A nano self-cleaning latex paint for exterior walls, comprising the following raw materials in parts by weight: 140 parts of water, 10 parts of propylene glycol, 0.5 parts of wetting agent, 3 parts of dispersant, 1 part of defoaming agent, 1 part of preservative, film-forming 10 parts of additives, 30 parts of nano titanium dioxide, 180 parts of titanium dioxide, 80 parts of heavy calcium carbonate, 40 parts of wollastonite powder, 40 parts of kaolin, 280 parts of pure acrylic emulsion, 80 parts of silicone modified acrylic emulsion, multifunctional auxiliary 2 parts of agent, 3 parts of thickener, 2 parts of leveling agent.

[0081] Described wetting agent is PE-100 wetting agent; Described dispersant is 5040 dispersant; Described defoamer is NXZ defoamer; Described preservative is LXE preservative; The film aid is alcohol ester twelve film-forming aid; the thickener is HASE thickener H-609; the leveling agent is polyurethane leveling agent RM-2020; the multifunctional...

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Abstract

The invention discloses a nanometer self-cleaning out-wall latex paint and a preparing method thereof. The nanometer self-cleaning out-wall latex paint is prepared from, by weight, 140-180 parts of water, 10-30 parts of propylene glycol, 0.5-1.5 parts of wetting agent, 3-8 parts of dispersing agent, 1-3 parts of defoaming agent, 1-3 parts of preservative, 10-25 parts of film-coalescing aid, 10-50parts of nanometer titania, 180-240 parts of titanium dioxide, 80-150 parts of heavy coarse calcium carbonate, 40-60 parts of wollastonite powder, 40-60 parts of kaolin, 280-350 parts of pure acrylicemulsion, 80-120 parts of organosilicone modification acrylic emulsion, 2 parts of multifunctional auxiliaries, 2-4 parts of thickening agent and 1-2 parts of flattening agent. Compared with the priorart, the nanometer self-cleaning out-wall latex paint has the advantages of having excellent weather fastness, alkali resistance, and artificial weathering aging resistance, the problems that paint is poor in water resistance, prone to cracking, stripping, fines removal and color changing, and difficult to clean are solved, and the nanometer self-cleaning out-wall latex paint is suitable for being used in various occasions, and has high application and popularization value.

Description

technical field [0001] The invention relates to a nanometer self-cleaning exterior wall latex paint and a preparation method thereof, belonging to the field of paints. Background technique [0002] Latex paint is a common name for latex paint. It was born in the middle and late seventies of the 20th century. It is a large class of synthetic resin emulsion paint represented by acrylate copolymer emulsion. Latex paint is a water-dispersible paint. It is based on synthetic resin emulsion, and the filler is refined by adding various additives after grinding and dispersing. Latex paint has many advantages that are different from traditional wall paints, such as easy to paint, fast drying, water-resistant paint film, and good scrub resistance. In my country, it is customary for people to use synthetic resin emulsion as the base material, use water as the dispersion medium, add pigments, fillers (also known as body pigments) and additives, and the paint made through a certain proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D5/16C09D5/14C09D5/02C09D7/61
CPCC09D133/04C08K2003/2241C08K2003/265C08K2201/003C08K2201/011C08K2201/014C09D5/022C09D5/025C09D5/028C09D5/14C09D5/1675C08L33/02C08K13/06C08K9/08C08K3/22C08K3/26C08K3/34C08K3/346
Inventor 裴东杰吴斌刘刚于航
Owner 郑州科斗科技有限公司
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