CN1287143A - High-elasticity nanometer paint and its preparation - Google Patents

Abstract

The high-elasticity nanometer paint has the main components including pure water, moistening dispersant, nanometer antibacterial powder, nanometer silicon base oxide, NM-BaSO4, superfine sericite, modified acrylic acid emulsion, titania, filming assistant, etc. It is one green paint with less environmental pollution, has excellent UV-resisting, antiradiation and heat isolating performance, has service life as long as 15 years and is suitable for decoration of various inner and outer walls as well as the leakage repair of roof.

Description

High-elasticity nanometer paint and preparation method thereof

The present invention relates to a kind of building coating and preparation method thereof, particularly relate to a kind of high-elasticity nanometer paint and preparation method thereof.

Existing wallcovering ubiquity that water resistance is poor, coating easily produces hair line, easily stains, difficultly clean, easily aging, easily problem such as peel off.Especially rainy season, situations such as seeping water, leak, go mouldy often perplexed people, directly has influence on people's work, studying and living temporarily.

For addressing these problems, in recent years, all in succession the various performances that improve coating have been launched development both at home and abroad.Disclosed a kind of antimicrobial acrylic resin exterior coating as JP09157549.Adopt 500 parts acrylic ester emulsion, 125 parts of transparent titanium dioxide fine particles, 20 portions of money base inorganic fungicides and 500 parts of water to form.And for example: in the acrylate paint that companies such as Cabot Corporation, Wacker-chemie GmbH provide, adopted the ultrafine powder of aerosil." Hybrid inorganic-organic UV-curable abrasin-resistant coatings " (Surf.Coat.Int.1998,81 (12) P594～595) introduced the nanometer colloid silicon-dioxide that adopts silane treatment, to improve the wear resistance and the hardness of acrylated urethano ultraviolet curing coating paint film; " nanometer SiO ₂Application in ultraviolet curing coating " (coatings industry 1999 (7) 3～5) then adopt and at a high speed grind the dispersive method with nanoparticle SiO ₂In being dispersed in acrylate paint, and to the curing speed of coating, launch research with aspects such as the hardness of the sticking power of base material, paint film, thermostabilitys.But it does not have antibacterial and antimildew function.JP10025435 has introduced a kind of weather resisteant antimicrobial coating, and parcel contains the sodium aluminate of Ag, Cu or Zn on silica gel, is sintered into crystal fine particle, is added in the ACRYLIC EMULSION again, forms the weather resisteant antimicrobial coating.But its complete processing complexity, and because of crystal fine particle does not reach nano level, so very few with traditional coating difference.

The object of the invention just provides the high-elasticity nanometer paint of a kind of waterproof, anticracking, Gao Naihou, automatically cleaning, safety non-toxic, long acting antibiotic.

Another object of the present invention just provides a kind of method for preparing the high-elasticity nanometer paint of waterproof, anticracking, Gao Naihou, automatically cleaning, safety non-toxic, long acting antibiotic.

Task of the present invention is achieved in that a kind of high-elasticity nanometer paint, and basal component (mass parts) is:

(1) pure water 18～24

(2) wetting dispersing agent 0.38～0.85

(3) the nano-antibacterial powder 0.4～0.8

(4) nano silicon-based oxide 3.2～4.8

(5)NM-BaSO ₄ 3～5.3

(6) ultra-fine beautiful mica 3.5～5.6

(7) film coalescence aid 1.8～2.6

(8) frostproofer 1.4～2.6

(9) anti-settling agent 1.4～2.6

(10) defoamer 0.1～0.21

(11) titanium dioxide 14～240

(12) talcum powder 6～11

(13) fine particle calcium carbonate 8～11

(14) thickening material 0.46～0.78

(15) modified acrylic acid emulsion 30～41

(16) flow agent 0.25～0.36

Another task of the present invention is achieved in that

A. add pure water in container, start is stirred at a slow speed;

B. add wetting dispersing agent, nano-antibacterial powder, nano silicon-based oxide, NM-BaSO successively ₄, ultra-fine beautiful mica, film coalescence aid, frostproofer and anti-settling agent, disperse at first at a slow speed, and then high speed dispersion;

C. stir at a slow speed, and add titanium dioxide, talcum powder and fine particle calcium carbonate, high speed dispersion successively;

D. add defoamer, survey fineness;

E. add thickening material, modified acrylic acid emulsion and flow agent at a slow speed, regulate viscosity;

F. pH value is adjusted in 8～9 scopes, gets finished product.

Because the present invention adopted nano-powder in coating, make coating have good thixotropy, increased specific surface area, improved the optical property of coating;

Adopted nano silicon-based oxide, ultrafine powder is dispersed in the material equably, forms inlay network-like, strengthens the physicochemical property and the sticking power of filming;

Adopt modified acrylic acid emulsion, softness, making films has splendid rebound resilience, elongation and toughness, not only can cover the hair line of metope, prevents seepage and oozes alkali, even also can be used for the mending-leakage of metope and roofing;

Anti-aging, radioprotective, automatically cleaning, water proof anti-seepage, work-ing life can be above 15 years;

Extremely strong opacifying power, acid and alkali-resistance, wash-resistant property;

Mildew-resistant, antibiotic algae removal.

The present invention is described in further detail below in conjunction with embodiment.

Embodiment one

A kind of nano-antibacterial powder and nano silicon-based oxide high-elasticity nanometer paint of containing is applicable to various decorating inner and external walls.() pure water is started shooting and is stirred at a slow speed down together at first to add 18～24 mass parts in container.Add 0.38～0.85 part of wetting dispersing agent, 0.4～0.8 part of nano-antibacterial powder, 3.2～4.8 parts of nano silicon-based oxides, 3～5.3 parts of NM-BaSO successively ₄, 3.5～5.6 parts of ultra-fine beautiful micas, 1.8～2.6 parts of film coalescence aid, and 1.4～2.6 parts of frostproofers and anti-settling agent.At first above-mentioned raw materials is disperseed at a slow speed, and then high speed dispersion.Subsequently, adding 14～20 parts of titanium dioxide and talcum powder and fine particle calcium carbonate, high speed dispersion then successively in the whipping process at a slow speed.If add the whiteness that 0.002～0.06 portion of ultramarine can improve coating.The mass parts of talcum powder and fine particle calcium carbonate can be controlled at 6～11 parts and 8～11 parts respectively.Add 0.1～0.21 part of defoamer, survey fineness.Add thickening material, modified acrylic acid emulsion and flow agent at a slow speed successively, regulate viscosity.The height of the mass parts of modified acrylic acid emulsion can directly influence the glossiness of decorative cover, usually, its mass parts can be controlled within 30～41 scopes.If need to obtain higher glossiness, can select higher quality part.The mass parts of thickening material and flow agent is generally 0.46～0.78 part and 0.25～0.36 part.Adjust pH value to 8～9, get finished product.The final product quality excellence, snappiness can cover microcrack, and has excellent anti-stain characteristic and self-cleaning function, and can reach more than 15 years work-ing life.Main technical data is as follows:

In case of necessity, also can add an amount of essence.

Embodiment two

A kind of roofing mending-leakage high-elasticity nanometer paint that is applicable to the subtropical zone.The preparation method is with embodiment one, and its basal component (mass parts) is: pure water 20; Wetting dispersing agent 0.55; Nano-antibacterial powder 0.8; Nano silicon-based oxide 4.8; NM-BASO ₄5.3.Ultra-fine beautiful mica 4.The mass parts of film coalescence aid and thickening material is respectively 1.8 and 0.6, and anti-settling agent and frostproofer get 1.4, desirable its maximum 11 mass parts of talcum powder and fine particle calcium carbonate.Defoamer 0.14, ultramarine 0.06, titanium dioxide 16, flow agent 0.28, and adopt the modified acrylic acid emulsion of 30 mass parts.After tested, every excellent performance.

Claims (2)

1. high-elasticity nanometer paint is characterized in that basal component (mass parts) is:

(1) pure water 18～24

(2) wetting dispersing agent 0.38～0.85

(3) the nano-antibacterial powder 0.4～0.8

(4) nano silicon-based oxide 3.2～4.8

(5)NM-BaSO ₄ 3～5.3

(6) ultra-fine beautiful mica 3.5～5.6

(7) film coalescence aid 1.8～2.6

(8) frostproofer 1.4～2.6

(9) anti-settling agent 1.4～2.6

(10) defoamer 0.1～0.21

(11) titanium dioxide 14～240

(12) talcum powder 6～11

(13) fine particle calcium carbonate 8～11

(14) thickening material 0.46～0.78

(15) modified acrylic acid emulsion 30～41

(16) flow agent 0.25～0.36

2. method for preparing the described high-elasticity nanometer paint of claim 1:

A. add pure water in container, start is stirred at a slow speed;

B. add wetting dispersing agent, nano-antibacterial powder, nano silicon-based oxide, NM-BaSO successively ₄, ultra-fine beautiful mica, film coalescence aid, frostproofer and anti-settling agent, disperse at first at a slow speed, and then high speed dispersion;

C. stir at a slow speed, and add titanium dioxide, talcum powder and fine particle calcium carbonate, high speed dispersion successively;

D. add defoamer, survey fineness;

E. add thickening material, modified acrylic acid emulsion and flow agent at a slow speed successively, regulate viscosity;

F. pH value is adjusted in 8～9 scopes, gets finished product.