A kind of cement-based luminous ceramic-imitation dry powder coating and preparation method
Technical field
The invention belongs to building material field, be specifically related to a kind of cement-based luminous ceramic-imitation dry powder coating and preparation method, outer wall heat preservation system, ground, beautiful board, sculpture for city etc. can be widely used in.
Background technology
Building coating, as one of New Building Materials principal item, has himself feature, as having decoration functions, can create the decorative effects such as colorful, embossment, imitative porcelain, imitative stone; Relative to stiff dough finishing material, film is thin, quality is light, and without potential safety hazard, operating efficiency is high, and decorative effect upgrades simple and fast.
Current, coating variety is a lot, during for cement-based material, usually will add putty or primary coat, there is film and the problem such as bond matrix is insecure, peeling; Some rigidifying coating hardness are low, not scrubbing resistance, and resistance to soiling is poor; Some coatings decoration effects are fine, but high expensive; Coating containing polyethylene, polyacrylic ester, polymethacrylate, polystyrene, polyvinyl chloride, Vinyl Acetate Copolymer and polyhutadiene etc., weather-proof tint retention is bad, because above-mentioned polymkeric substance is under uviolizing, easy generation backbone breaking, intermolecular cross-linking or DeR, cause the change of physical properties of coatings.
Coating, the coating especially for exterior wall and exterior wall goods has very large developing market in China.The hard surface-veneer material being called " city time bomb " is high due to cost, there is certain potential safety hazard, receives the concern of domestic and international project circle, and limits its use.Some provinces and cities of current China have put into effect the regulation limiting the use of hard surface-veneer material.How to improve coating durability, particularly weather-proof tint retention, stain resistance, reduces costs simultaneously, and namely giving coating high performance-price ratio, is one of principal element affecting paint development.
Patent CN101230214A provides a kind of cement-based luminous ceramic-imitation dry powder coating and preparation method, described in it, cement-based luminous ceramic-imitation dry powder coating comprises white cement, water-ground limestone, white fused alumina, photo-induced energy storage material, polymer dispersion powder, methyl cellulose ether, titanium dioxide, hydrophober and defoamer, though this cement-based luminous ceramic-imitation dry powder coating has good weather resistance, but owing to adding lime in coating, cement etc., soluble salt can be produced, these soluble salts separate out surface under certain condition gradually, due to these salt whitish, make dark coating to have occurred light spot, i.e. so-called albinism, therefore, this type of inorganic dry powder painting is only limited to white or light-coloured coating.
Summary of the invention
For the defect easily occurring albinism in above-mentioned inorganic dry powder construction paint, the invention provides a kind of without the cement-based luminous ceramic-imitation inorganic dry powder construction paint of albinism and the production method of described inorganic dry powder construction paint.
To achieve these goals, the technical solution adopted in the present invention is:
A kind of cement-based luminous ceramic-imitation dry powder coating, it comprises white cement, alkalimetal silicate, photo-induced energy storage material, polymer dispersion powder, methyl cellulose ether, titanium dioxide, hydrophober, film coalescence aid, wetting agent and defoamer raw material, and shared by each starting material, mass fraction is: white cement 35 ~ 50 parts, alkalimetal silicate 30 ~ 50 parts, photo-induced energy storage material 10 ~ 30 parts, polymer dispersion powder 1 ~ 3 part, methyl cellulose ether 1 ~ 3 part, titanium dioxide 1 ~ 5 part, hydrophober 1 ~ 2.5 part, film coalescence aid 2 ~ 3 parts, wetting agent 1 ~ 2 part, defoamer 1 ~ 2.5 part.
Wherein, mass fraction shared by each starting material: white cement can be 35 parts, 37 parts, 40 parts, 43 parts, 45 parts, 47 parts or 50 parts etc.; Alkalimetal silicate can be 30 parts, 35 parts, 40 parts, 45 parts or 50 parts etc.; Photo-induced energy storage material can be 10 parts, 15 parts, 20 parts, 25 parts or 30 parts etc.; Polymer dispersion powder can be 1 part, 1.5 parts, 2 parts, 2.5 parts or 3 parts etc.; Methyl cellulose ether can be 1 part, 1.5 parts, 2 parts, 2.5 parts or 3 parts etc.; Titanium dioxide can be 1 part, 2 parts, 3 parts, 4 parts or 5 parts etc.; Hydrophober can be 1 part, 1.5 parts, 2 parts or 2.5 parts etc.; Film coalescence aid can be 2 parts, 2.2 parts, 2.4 parts, 2.6 parts, 2.8 parts or 3 parts etc.; Wetting agent can be 1 part, 1.2 parts, 1.4 parts, 1.6 parts, 1.8 parts or 2 parts etc.Preferably, described raw material comprises colored organic pigments (or claim inorganic color(ed)pigment), and shared mass fraction is 3 ~ 10 parts, such as 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts or 10 parts etc.
Preferably, described raw material comprises aqueous fluorescent pigment, and shared massfraction is 1 ~ 2 part, such as 1 part, 1.2 parts, 1.4 parts, 1.6 parts, 1.8 parts or 2 parts etc.
Preferably, described white cement strength grade is more than 32.5 (containing 32.5).
Preferably, described photo-induced energy storage material is commercially available aqueous long-acting luminescent powder.
Preferably, described hydrophober is commercially available powdery silane hydrophober.
Preferably, described defoamer city is for selling white powder defoamer.
Preferably, described alkalimetal silicate is the silicate of metal in mendeleev periodic table of elements IA race.
Preferably, described alkalimetal silicate is the composition of any one or at least two kinds in water glass, potassium silicate or lithium silicate, described combination typical case but limiting examples have: the combination of water glass and potassium silicate, the combination of potassium silicate and lithium silicate, the combination etc. of water glass, potassium silicate and lithium silicate.
Preferably, described re-dispersible glue powder obtains by after polymer emulsion drying.
Preferably, described polymkeric substance is alkene, diolefine, vinylformic acid, acroleic acid resin, methacrylic acid, methacrylic ester, the homopolymer that fatty acid ethylene polyisocyanate polyaddition obtains, the composition of any one or at least two kinds in copolymer or terpolymer, described polymkeric substance specifically can be: polyvinyl acetate (PVA), vinyl acetate/ethylene copolymer (EVA), vinyl acetate/propylene copolymer, vinyl acetate/butadienecopolymer, vinyl acetate/styrol copolymer, styrene/butadiene copolymers, acrylate/styrol copolymer, acrylate/vinyl acetate/higher aliphatic vinyl acetate terpolymer, vinyl acetate/higher aliphatic vinyl acetate copolymer, ethene/vinylchlorid/lauric acid vinyl acetate terpolymer, vinyl acetate/ethene/higher aliphatic vinyl acetate terpolymer, polyacrylic acid, polyacrylic ester, polymethyl acrylic acid, polymethacrylate etc.
Preferably, described film coalescence aid is the combination of any one or at least two kinds in dibasic alcohol, dialcohol monomethyl ether or diol monoether carboxylate, concrete can be ethylene glycol, propylene glycol monobutyl ether, propylene glycol monomethyl ether acetate or 2,2, the combination of any one or at least two kinds in 4-trimethylammonium-1,3-pentanediol list isobutyl ester.Wherein, film coalescence aid can improve coalescent performance, can the material of film-forming in more wide in range temperature range when making the inorganic dry powder construction paint construction not containing solidifying agent of the present invention.
Preferably, described wetting agent is the combination of any one or at least two kinds in polysiloxane, polyether-modified polydimethylsiloxane, polyester modification polydimethylsiloxane, fluorochemical surfactant or polyethers, described combination typical case but limiting examples have: the combination of polysiloxane and polyether-modified polydimethylsiloxane, the combination of polyester modification polydimethylsiloxane and fluorochemical surfactant, the combination etc. of fluorochemical surfactant and polyethers.
The preparation method of above-mentioned a kind of cement-based luminous ceramic-imitation dry powder coating, it comprises the steps:
1) by mass fraction shared by each raw material be: alkalimetal silicate 30 ~ 50 parts, white cement 35 ~ 50 parts, photo-induced energy storage material 10 ~ 30 parts, polymer dispersion powder 1 ~ 3 part, methyl cellulose ether 1 ~ 3 part, titanium dioxide 1 ~ 5 part, hydrophober 1 ~ 2.5 part, film coalescence aid 2 ~ 3 parts, wetting agent 1 ~ 2 part, defoamer 1 ~ 2.5 part, choose alkalimetal silicate, white cement, photo-induced energy storage material, polymer dispersion powder, methyl cellulose ether, titanium dioxide, hydrophober, film coalescence aid, wetting agent and defoamer raw material, for subsequent use;
2) alkalimetal silicate, polymer dispersion powder, methyl cellulose ether, titanium dioxide, hydrophober, film coalescence aid, wetting agent and defoamer raw material stirring are mixed (homogenizing), stir 5min, discharging, obtains preferential compound; Then drop into white cement and stir 10min, discharging, obtains cement-based luminous ceramic-imitation dry powder coating product.
Described raw material comprises colored organic pigments or/and aqueous fluorescent pigment, mass fraction shared by colored organic pigments is 3 ~ 10 parts, massfraction shared by aqueous fluorescent pigment is 1 ~ 2 part, and pigment together drops into stirrer with polymer dispersion powder, methyl cellulose ether, titanium dioxide, hydrophober and defoamer raw material and is uniformly mixed.
Because coating main ingredient of the present invention is white cement, alkalimetal silicate, polymer dispersion powder etc., strong with the bonding force of the special cement-based material matrix of matrix, for primary coat or putty need not be added during cement-based material facing, can direct spraying, blade coating etc.In addition, due to redispersable latex powder one side and alkali metal silicate salt formation uniform organogel-inorganic gel compound system, more firmly matrix surface can be sticked to after making coating curing film forming as binding agent on the other hand, and alkalimetal silicate can't change in use, can not move to coatingsurface in the resin of solidification, therefore all there is not albinism of saltouing in cement-based luminous ceramic-imitation dry powder coating of the present invention in long use procedure yet.
The present invention, compared with same type of material, has following beneficial effect:
1) due to the effect of re-dispersible glue powder and alkalimetal silicate, this coating there will not be albinism of saltouing in long use procedure.
2) facing hardness is high, good endurance (weather-proof guarantor's look, resistance to soiling, water resistance are good); After absorbing visible ray daytime, at sustainable luminous more than 10 hours of night, illumination effect depends on the content of photo-induced energy storage material in coating, can play the effect of faint illumination; Simultaneously this coating is containing the composition that triphen etc. is harmful.
3) preparation technology is simple.Only need drop into powder raw material by operation, mix.
4) convenient transportation, product shelf life is long.Because this coating is powdery, therefore, only damp-proof treatment need be done during packaging.
5) reduce working procedure, shorten the engineering time.This dry powder paint, based on cement, adds water and can use, and spraying, blade coating, during making cement goods finish coat, do not need putty, elasticity primary coat etc., therefore, can greatly shorten construction period or article manufacturing cycle.
6) of many uses.Outer wall heat preservation system and goods, ground, beautiful board, sculpture for city etc. can be widely used in.
Embodiment
In order to understand the present invention better, illustrate content of the present invention further below in conjunction with embodiment, but content of the present invention is not only confined to the following examples.
Embodiment 1:
A preparation method for cement-based luminous ceramic-imitation dry powder coating, it comprises the steps:
1) by mass fraction shared by each raw material be: white cement 35 parts, alkalimetal silicate 30 parts, photo-induced energy storage material 20 parts, polymer dispersion powder 3 parts, methyl cellulose ether 1 part, titanium dioxide 4 parts, hydrophober 1 part, film coalescence aid 2 parts, wetting agent 2 parts, defoamer 1.5 parts, colored organic pigments 6 parts, aqueous fluorescent pigment 2 parts, choose white cement, alkalimetal silicate, photo-induced energy storage material, polymer dispersion powder, methyl cellulose ether, titanium dioxide, hydrophober, film coalescence aid, wetting agent, defoamer, colored organic pigments and aqueous fluorescent pigment crude, for subsequent use,
Described colored organic pigments is ultramarine, and described aqueous fluorescent pigment is fluorescence green;
Described white cement strength grade is 32.5.Described photo-induced energy storage material be Shenzhen Kang Yu reach luminescent material company limited produce Kang Yu reach long-acting noctilucent powder (blue green light powder).Dried rubber powder after the homopolymer emulsion that described polymer dispersion powder is obtained by alkene, diolefine and propylene polymerization.Described alkalimetal silicate is water glass.Described film coalescence aid is ethylene glycol.Described wetting agent is polysiloxane.Described hydrophober is the Seal80 silylation powder additive that National Starch Chemical Co., Ltd. (Elotex) produces.Described defoamer is the DE8098 Si modification powder defoamer that Shanghai moral hundred million Chemical Co., Ltd. produces.
2) alkalimetal silicate, polymer dispersion powder, methyl cellulose ether, titanium dioxide, hydrophober, film coalescence aid, wetting agent, defoamer, colored organic pigments and aqueous fluorescent pigment crude are uniformly mixed (homogenizing), stir 5min, discharging, obtains preferential compound; Then drop into white cement to continue to mix (homogenizing), stir 10min, discharging, obtains cement-based luminous ceramic-imitation dry powder coating product.
Obtained cement-based luminous ceramic-imitation dry powder coating product, carry out the test of stability in storage, workability according to People's Republic of China (PRC) building trade standard JG/T26-2002 " exterior wall inorganic architectural coatings ", test result is in table 1.
Embodiment 2:
A preparation method for cement-based luminous ceramic-imitation dry powder coating, it comprises the steps:
1) by mass fraction shared by each raw material be: white cement 50 parts, alkalimetal silicate 50 parts, photo-induced energy storage material 10 parts, polymer dispersion powder 1 part, methyl cellulose ether 3 parts, titanium dioxide 5 parts, hydrophober 2.5 parts, film coalescence aid 3 parts, wetting agent 1 part, defoamer 2.5 parts, aqueous fluorescent agent 1 part, choose white cement, alkalimetal silicate, photo-induced energy storage material, polymer dispersion powder, methyl cellulose ether, titanium dioxide, hydrophober, film coalescence aid, wetting agent and defoamer raw material, for subsequent use;
Described white cement strength grade 32.5.Described photo-induced energy storage material is the long-acting noctilucent powder (ruddiness powder) that Hangzhou Ye Ming Science and Technology Development Co., Ltd. produces.Described alkalimetal silicate is potassium silicate.Described polymer dispersion powder is the dried powder of vinyl acetate/butadiene copolymer emulsions.。Described hydrophober is the Seal80 silylation powder additive that National Starch Chemical Co., Ltd. (Elotex) produces.Described film coalescence aid is 2,2,4-trimethylammonium-1,3-pentanediol list isobutyl ester.Described wetting agent is the composition of polyester modification polydimethylsiloxane and fluorochemical surfactant, and the two mixes with arbitrary proportion.Described defoamer is the DE8098 Si modification powder defoamer that Shanghai moral hundred million Chemical Co., Ltd. produces.
2) alkalimetal silicate, polymer dispersion powder, methyl cellulose ether, titanium dioxide, hydrophober, film coalescence aid, wetting agent and defoamer raw material stirring are mixed (homogenizing), stir 5min, discharging, obtains preferential compound; Then drop into white cement, continue to mix (homogenizing), stir 10min, discharging, obtains cement-based luminous ceramic-imitation dry powder coating product.
Obtained cement-based luminous ceramic-imitation dry powder coating product, carry out the test of stability in storage, workability according to People's Republic of China (PRC) building trade standard JG/T26-2002 " exterior wall inorganic architectural coatings ", test result is in table 1.
Embodiment 3:
A preparation method for cement-based luminous ceramic-imitation dry powder coating, it comprises the steps:
1) by mass fraction shared by each raw material be: white cement 40 parts, alkalimetal silicate 40 parts, photo-induced energy storage material 30 parts, polymer dispersion powder 2 parts, methyl cellulose ether 2 parts, titanium dioxide 1 part, hydrophober 2 parts, film coalescence aid 2.5 parts, wetting agent 1.5 parts, defoamer 2.5 parts, colored organic pigments 10 parts, choose alkalimetal silicate, white cement, photo-induced energy storage material, polymer dispersion powder, methyl cellulose ether, titanium dioxide, hydrophober, film coalescence aid, wetting agent, defoamer and colored organic pigments raw material, for subsequent use;
Described colored organic pigments is Lemon chrome yellow.
Described white cement strength grade 42.5.Described photo-induced energy storage material is the long-acting noctilucent powder (yellowish green powder) that Hangzhou Ye Ming Science and Technology Development Co., Ltd. produces.Described polymer dispersion powder is dried rubber powder after the homopolymer emulsion obtained by alkene, diolefine and propylene polymerization.。Described alkalimetal silicate is water glass.Described film coalescence aid is ethylene glycol.Described wetting agent is polysiloxane.Described hydrophober is the Seal80 silylation powder additive that National Starch Chemical Co., Ltd. (Elotex) produces, fineness 20um.Described defoamer is the DE8098 Si modification powder defoamer that Shanghai moral hundred million Chemical Co., Ltd. produces.
2) alkalimetal silicate, polymer dispersion powder, methyl cellulose ether, titanium dioxide, hydrophober, film coalescence aid, wetting agent, defoamer and colored organic pigments raw material stirring are mixed (homogenizing), stir 5min, discharging, obtains preferential compound; Then drop into white cement to continue to mix (homogenizing), stir 10min, discharging, detect, packaging, obtains cement-based luminous ceramic-imitation dry powder coating product.
Obtained cement-based luminous ceramic-imitation dry powder coating product, carry out the test of stability in storage, workability according to People's Republic of China (PRC) building trade standard JG/T26-2002 " exterior wall inorganic architectural coatings ", test result is in table 1.
Comparative example 1:
For the embodiment 1 in patent CN101230214A, obtained cement-based luminous ceramic-imitation dry powder coating product, carry out the test of stability in storage, workability according to People's Republic of China (PRC) building trade standard JG/T26-2002 " exterior wall inorganic architectural coatings ", test result is in table 1.
Table 1: embodiment 1-3 and comparative example 1 obtain cement-based luminous ceramic-imitation dry powder coating product test result table
As can be seen from the result of embodiment 1-3 and comparative example 1, the cement-based luminous ceramic-imitation dry powder coating product that the present invention obtains is due to redispersable latex powder one side and alkali metal silicate salt formation uniform organogel-inorganic gel compound system, more firmly matrix surface can be sticked to after making coating curing film forming as binding agent on the other hand, and alkalimetal silicate can't change in use, also can not move to coatingsurface in the resin of solidification, therefore in long use procedure, all not occur albinism of saltouing.Meanwhile, the cement-based luminous ceramic-imitation dry powder coating product facing hardness that the present invention obtains is high, good endurance (weather-proof guarantor's look, resistance to soiling, water resistance are good), and preparation technology is simple, convenient transportation, product shelf life are long and of many uses.