A kind of long-acting resistance to formaldehyde water soluble acrylic acid wood lacquer compositionTechnical field
The present invention relates to a kind of anti-formaldehyde water soluble acrylic acid wood lacquer composition.
Background technology
Aqueous woodware paint is not owing to contain organic solvent, safety, environmental protection, healthy characteristic, and is subjected to people's favor, and by successfully exploitation and a large amount of first sales fields of throwing, satisfied people's decoration, decoration requirements.Wherein, the water soluble acrylic acid wood lacquer has better guarantor's light, tint retention energy.But timber, furniture, coating inferior all can contain formaldehyde, and formaldehyde has been thought killer maximum in home decoration, the fitment process altogether.Being dispersed into airborne formaldehyde has not only influenced Air quality, has also had a strong impact on the poor old man of the healthy of people, particularly resistibility, child and patient, and release period reaches 10 years.So coating industry adopts various new technologies, novel material, novel process, improve the anti-formaldehyde of coating, the function of elimination formaldehyde.At present, the technology that generally adopts is to utilize the photo-catalysis function of nano material, release negative ion, airborne formaldehyde is decomposed, nano material mainly concentrates on nano silica powder, nano-titanium dioxide powder, nanometer Zinc oxide powder, nano alumina powder jointed, and is wherein the strongest with the nano-titanium dioxide powder activity.In this regard, domestic, all have a lot of relevant patents abroad.But nano powder material easily produces secondary agglomeration, so service efficiency is not high.
Summary of the invention
Technical problem to be solved by this invention is to overcome the problem that nano-powder is easily reunited in the anti-formaldehyde aqueous woodware paint of prior art, and a kind of improved water soluble acrylic acid wood lacquer composition is provided.
For solving above technical problem, the present invention takes following technical scheme:
A kind of water soluble acrylic acid wood lacquer composition, it is made up of Emulsion acrylic resin or acrylic resin colloidal sol 40-90 part, film coalescence aid 1-15 part, deionized water 1-20 part, defoamer 0.01-1 part, flow agent 0.01-2 part, nano titanic oxide sol 0.01-25 part, bamboo charcoal powder 0.01-8 part, thickening material 0-2 part, sanitas 0-0.5 part, essence 0-1 part, pH stablizer 0-0.5 part, pigment 0-50 part, filler 0-30 part and wax emulsion 0-10 part, wherein, Emulsion acrylic resin or acrylic acid sol are dispersion medium with water, and solid content is 40wt%-60wt%; Described nano titanic oxide sol is dispersion medium with water, and effective solid content is 15%-25%, and the pH value is 7-10, and particle diameter is the 1-100 nanometer.
According to the present invention, described film coalescence aid can be one or more the combination in Diethylene Glycol butyl ether, butyl glycol ether and the lauryl alcohol ester.Described defoamer can be one or more combination in mineral oils, organopolysiloxane class, the hyperbranched polymer class.Described wax emulsion can be one or more the combination in high-molecular polythene wax emulsion, polypropylene wax emulsion, the tetrafluoroethylene wax emulsion, preferred high-molecular polythene wax emulsion; Flow agent can be one or more combination in organopolysiloxane class, polyurethanes, the acrylic acid or the like; Thickening material can be one or more the combination in cellulose family, polyurethanes, the alkali swelling acrylic acid or the like, the combination of optimization polyurethane class and alkali swelling acrylic thickener.The preferred two Imidureas of sanitas.
According to the present invention, preferred solid content is 15%, median size is the nano titanic oxide sol of 14-16 nanometer, and wherein, more preferably median size is the nano titanic oxide sol of 15 nanometers.Bamboo charcoal powder is common commercially available prod, and particle size range is 5 nanometers-100 micron, and preferable range is 100 nanometers-10 micron.
Essence is common commercially available concentrate, can be one or more the combination in sandalwood type, lemon flavor, jasmine fragrance, rose fragrance type, camellia odor type and the Flos Rosae Chinensis odor type.
The pH stablizer is ammoniacal liquor or AMP-95, preferred AMP-95.Pigment, filler do not have particular requirement, all are that product is easily purchased in market.
Because the technique scheme utilization, the present invention compared with prior art has following advantage:
The nano titanic oxide sol that adds in the present composition has very high dispersiveness, stability, photo-catalysis function that can maximum performance nano material; Simultaneously,, added bamboo charcoal powder in the present composition, the fixing and decomposition that reaches airborne formaldehyde, promotion formaldehyde that discharges in its energy active adsorption timber with very strong adsorption function in order to improve the long-acting persistent anti-formaldehyde of paint film, function of eliminating formaldehyde.
Embodiment
It is anti-formaldehyde, the material of eliminating formaldehyde that the present invention utilizes the strongest active nanometer titanium dioxide carbon, has improved anti-formaldehyde, the elimination formaldehyde effect of acrylic acid aqueous wood lacquer paint film.Utilize the colloidal sol type nano material that stability is very good, particle is very thin, utilization ratio, the economic worth of nano material is provided.Use the superpower adsorption of bamboo charcoal powder PARA FORMALDEHYDE PRILLS(91,95), the progress step has been improved the ability of paint film elimination formaldehyde.Because the adsorption of bamboo charcoal powder makes acrylic acid aqueous wood lacquer paint film possess long-acting, persistent anti-formaldehyde, eliminates the formaldehyde ability.
Easily purchase on all present coating raw material of the raw material that relates among the present invention market and be easy to get.The present invention is further detailed explanation below in conjunction with specific embodiment, but the invention is not restricted to these embodiment.
Embodiment 1
The transparent putty of a kind of acrylic acid aqueous wood lacquer, percentage composition meter by weight, its composition of raw materials is as follows: the acrylic resin of solid content 45% (first promise 6295W) 60%, film coalescence aid (Diethylene Glycol butyl ether) 2%, deionized water 15.4%, defoamer (Nopco NXZ) 0.5%, dispersion agent (SN 5040) 0.2%, 1250 order talcum powder 5%, 1250 order process whites 5%, the nano titanic oxide sol 5% of effective content 15%, the bamboo charcoal powder 2% that particle diameter is 20 microns, thickening material HBR-2503.6%, thickening material Thicklevelling 6320.4%, flow agent BYK-3460.5%, ammoniacal liquor 0.4%.
The production technique of the transparent putty of acrylic acid aqueous wood lacquer is as follows:
Under 500rpm, in disperseing bucket, add deionized water, film coalescence aid, defoamer, dispersion agent, talcum powder, process white, nano titanic oxide sol, bamboo charcoal powder and thickening material successively in 2000rpm high speed dispersion 30 minutes, be ground to fineness again less than 50 microns, add acrylic resin, flow agent and ammoniacal liquor then, under 500rpm, carry out paint promptly.
The technical indicator of the transparent putty of acrylic acid aqueous wood lacquer is as follows:
Sticking power: 1 grade; Contrast ratio: 3.6%
Stormer viscosity: 100KU;
Surface drying time: 15min does solid work the time: 30min;
Formaldehyde elimination factor (30d) 96%.
Embodiment 2
A kind of water soluble acrylic acid high-gloss clear finish, percentage composition meter by weight, its composition of raw materials is as follows: bamboo charcoal powder 4%, deionized water 2% that acrylic resin (Weng Kaier 40-416) 76.4%, defoamer (Nopco NXZ) 0.6%, flow agent BYK-0341%, film coalescence aid (Diethylene Glycol butyl ether) 6%, the nano titanic oxide sol 10% of effective content 15%, particle diameter are 10 microns.
The production technique of water soluble acrylic acid high-gloss clear finish is as follows:
Under 500rpm, in disperseing bucket, add each raw material successively, in 2000rpm high speed dispersion 30 minutes, be ground to fineness more promptly less than 30 microns.
The technical indicator of water soluble acrylic acid high-gloss clear finish is as follows:
Surface drying time: 15min; Pencil hardness: 1H-2H; Sticking power: 1 grade
Formaldehyde elimination factor (30d) 92%.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.