CN105273448A - Environment-friendly exterior wall paint and preparation method - Google Patents
Environment-friendly exterior wall paint and preparation method Download PDFInfo
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- CN105273448A CN105273448A CN201510673984.4A CN201510673984A CN105273448A CN 105273448 A CN105273448 A CN 105273448A CN 201510673984 A CN201510673984 A CN 201510673984A CN 105273448 A CN105273448 A CN 105273448A
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Abstract
The invention relates to environment-friendly exterior wall paint and a preparation method. The total amount of VOCs (volatile organic compounds), the content of benzene, the sum of the content of methylbenzene, ethylbenzene and xylene as well as the content of free formaldehyde in the environment-friendly exterior wall paint are obviously decreased. Compared with the prior art, the paint has the advantages that the total amount of the VOCs in the exterior wall paint is decreased by 27.7%, the content of the benzene is decreased by 29.9%, the sum of the content of the methylbenzene, the ethylbenzene and the xylene is decreased by 26.8%, and the content of the free formaldehyde is decreased by 27%; meanwhile, properties of the exterior all paint in aspects of water resistance, alkali resistance, artificial weather aging resistance, pulverization, color change, stain resistance and temperature change resistance of coatings are obviously improved.
Description
Technical field
The present invention relates to wall paint, particularly a kind of environmental protection exterior wall paint.
Background technology
Exterior wall paint is also exterior coating, is generally used for exterior wall, also can be used in the place of the contour humidity in toilet.The kind of exterior coating is a lot, can be divided into powerful antiacid alkali exterior coating, elastic pure acrylic acid exterior coating, the self-cleaning elastic exterior coating material of organosilicon, senior acrylic wall paint, fluorocarbon coating, rural scenery series of low-carbon etc.
The hazardous solvent such as benzene class in existing exterior wall paint, free formaldehyde, volatile organic compounds total amount equal size are higher, not only compromise the health of people, also cause environmental pollution to a certain extent.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of environmental protection exterior wall paint.In this environmental protection exterior wall paint, the content of the hazardous solvent such as benzene class, free formaldehyde, volatile organic compounds total amount obtains obvious reduction.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of environmental protection exterior wall paint, is made up of the component of following weight part: water-washed kaoline 6-15 part, wollastonite powder 5-10 part, titanium dioxide 6-9 part, Mierocrystalline cellulose 2-5 part, mould inhibitor 1-3 part, 12 carbon alkane 3-6 parts, dispersion agent 1-3 part, defoamer 1.5-2.5 part, wetting agent 3-5 part and water 25-40 part.
Further, described environmental protection exterior wall paint is made up of the component of following weight part: water-washed kaoline 12 parts, wollastonite powder 6 parts, titanium dioxide 8 parts, Mierocrystalline cellulose 3 parts, mould inhibitor 2 parts, 5 parts, 12 carbon alkane, dispersion agent 2 parts, defoamer 2 parts, wetting agent 4 parts and 30 parts, water.
Described water-washed kaoline refers to through physical treatment, the kaolin not changing original soil character.
Described wollastonite is single chain silicate mineral, usually in the form of sheets, radial or fibrous agrregate.It is nontoxic, resistance to chemical attack, thermostability and dimensional stabilizing are good, has glass and pearliness, low water absorption and oil-absorption(number), mechanical property and electrical property excellent and there is strengthening action.Wollastonite is mainly used as the reinforcing filler of polymer composites materials.As industries such as plastics, rubber, pottery, coating, building materials.Wollastonite has good reinforcing, both can improve toughness and the wearing quality of coating, can keep the glossiness that coating surface is smooth and good again.And improve anti-scrubbing and weathering resistance performance, also can reduce the oil number of coating and ink and keep alkalescence, there is resistance to corrosion.The coating that high quality is bright can be obtained, and there is good levelling property and ageing resistance.Make coating can obtain better physical strength, increase weather resistance, increase adherence and corrosion resistance.Also has good fraction of coverage, sticking power.
Described titanium dioxide is main component is titanium dioxide (TiO
2) white pigment.Titanium dioxide has three kinds of crystal habits at nature: rutile-type, anatase titanium dioxide and plate titanium-type.Titanium dioxide is important white pigment and porcelain glaze, has superior whiteness, tinting strength, opacifying power, weathering resistance, thermotolerance and chemical stability, particularly do not have toxicity compared with other white pigments.Titanium dioxide is widely used in the industries such as coating, plastics, rubber, ink, paper, chemical fibre, pottery, daily use chemicals, medicine, food.With the coating that titanium dioxide manufactures, bright in luster, opacifying power is high, strong coloring force; low-consuming, wide in variety, can play a protective role to the stability of medium, and physical strength and the sticking power of paint film can be strengthened; prevent crackle, prevent ultraviolet and moisture through, extend the paint film life-span.
The macromolecular polysaccharide that described Mierocrystalline cellulose is made up of glucose is the main component of plant cell wall.Mierocrystalline cellulose is a kind of polysaccharide that occurring in nature distribution is the widest, content is maximum, accounts for more than 50% of vegitabilia's carbon content.The content of cellulose of cotton, close to 100%, is natural most pure cellulose source.
Described mould inhibitor refers to have mould and kills or restraining effect, prevents the preparation that application goes mouldy.Mould inhibitor, to the killing action of mould, is enter in cell by its archespore film, eliminates spore or stops it to germinate to reach the object preventing mould-growth.
Described dispersion agent is a kind of interfacial agent simultaneously in molecule with lipophilicity and wetting ability two kinds of opposite nature.Homogeneous difficulty can be dissolved in solid and the liquid particle of inorganic, the pigment dyestuff of liquid, also can prevent sedimentation and the cohesion of particle simultaneously, form the amphipathic reagent needed for stable suspension.
Described defoamer also claims foam killer, can reduce surface tension, suppresses foam to produce or eliminates the foodstuff additive having produced foam.
Described wetting agent is some tensio-active agents normally, as sulphonated oil, soap, Nekal BX etc.Also soybean lecithin, thio-alcohol, hydrazides class and mercaptan acetals etc. can be used.The material that wetting agent can make solid materials more easily be soaked in water.By reducing its surface tension or interfacial tension, make water can be deployed in solid materials on the surface, or penetrate its surface, and solid materials is soaked.
Further, the granularity of described wollastonite powder is 6-8 μm.
Further, described titanium dioxide is Rutile type Titanium Dioxide.
Rutile type Titanium Dioxide is excellent white pigment, and have polymolecularity, high-weatherability, high opacifying property, its stability is splendid.
Further, described Mierocrystalline cellulose is Natvosol.
Described Natvosol is a kind of white or faint yellow, tasteless, nontoxic threadiness or pulverulent solids.Due to Natvosol, there is good thickening, suspension, dispersion, emulsification, bonding, film forming, protection moisture and the characteristics such as protective colloid are provided, being widely used in the fields such as oil production, coating, building, medicine food, weaving, papermaking and macromolecular polymerization reaction.
Further, described defoamer is aqueous acid alcohol resin defoamer.
Described aqueous acid alcohol resin defoamer can improve the sticking power of coating, glossiness and resistant to chemical media.The defoamer of use the type significantly can reduce the volatile organic compound content in coating.
Further, described wetting agent is polyoxyethylene octylphenol ether series wetting agent.
Described polyoxyethylene octylphenol ether series wetting agent is a kind of high hlb emulsifying agent and dispersion agent, the colloidal stability of emulsion polymerisation system can be improved, in hot environment effectively, there is good solubility physical index in salts solution, electrolytic solution and caustic soln.
Two of object of the present invention is the preparation method protecting described environmental protection exterior wall paint, and its concrete steps are:
A. weigh by raw material ratio, for subsequent use;
B. in mixing machine, add water, then add water-washed kaoline, titanium dioxide, wollastonite powder and dispersion agent successively, stir 15-20 minute with the rotating speed of 650-700 rev/min;
C. in step B gained mixture, add 12 carbon alkane, Mierocrystalline cellulose, wetting agent, defoamer and mould inhibitor successively, stir 12-15 minute with the rotating speed of 720-750 rev/min.
Further, in whipping process described in step B, temperature is 32-40 DEG C, and in whipping process described in step C, temperature is 24-28 DEG C.
Advantageous Effects of the present invention is:
Volatile organic compounds total amount in environmental protection exterior wall paint of the present invention, benzene content, toluene, ethylbenzene and xylene content summation, free formaldehyde content obtains obvious reduction.Compared with prior art, the volatile organic compounds total amount in exterior wall paint of the present invention reduces 27.7%; Benzene content reduces 29.9%; Toluene, ethylbenzene and xylene content summation reduce 26.8%; Free formaldehyde content reduces 27%.Meanwhile, the performance of the water tolerance of the exterior wall paint of exterior wall paint of the present invention, alkali resistance, artificial weathering ageing resistance, efflorescence, variable color, contamination resistance, coating temperature-change resistance aspect has arrived obvious improvement.
Embodiment
In order to make the object, technical solutions and advantages of the present invention clearly, below embodiments of the invention are described in detail.
Embodiment 1
A kind of environmental protection exterior wall paint, composed of the following components: water-washed kaoline 15kg, granularity be 6 μm wollastonite powder 10kg, Rutile type Titanium Dioxide 6kg, Natvosol 2kg, mould inhibitor 3kg, 12 carbon alkane 6kg, dispersion agent 1kg, aqueous acid alcohol resin defoamer 2.5kg, polyoxyethylene octylphenol ether series wetting agent 3kg and water 40kg.
The preparation method of this environmental protection exterior wall paint, is characterized in that, concrete step is:
A. weigh by raw material ratio, for subsequent use;
B. in mixing machine, add water, then add water-washed kaoline, titanium dioxide, wollastonite powder and dispersion agent successively, under 32 DEG C of conditions, stir 15 minutes with the rotating speed of 700 revs/min;
C. in step B gained mixture, add 12 carbon alkane, Mierocrystalline cellulose, wetting agent, defoamer and mould inhibitor successively, under 24 DEG C of conditions, stir 15 minutes with the rotating speed of 720 revs/min.
Embodiment 2
A kind of environmental protection exterior wall paint, composed of the following components: water-washed kaoline 6kg, granularity be 8 μm wollastonite powder 5kg, Rutile type Titanium Dioxide 9kg, Natvosol 5kg, mould inhibitor 1kg, 12 carbon alkane 3kg, dispersion agent 3kg, aqueous acid alcohol resin defoamer 1.5kg, polyoxyethylene octylphenol ether series wetting agent 3kg and water 25kg.
The preparation method of this environmental protection exterior wall paint, is characterized in that, concrete step is:
A. weigh by raw material ratio, for subsequent use;
B. in mixing machine, add water, then add water-washed kaoline, titanium dioxide, wollastonite powder and dispersion agent successively, under 40 DEG C of conditions, stir 20 minutes with the rotating speed of 650 revs/min;
C. in step B gained mixture, add 12 carbon alkane, Mierocrystalline cellulose, wetting agent, defoamer and mould inhibitor successively, under 28 DEG C of conditions, stir 12 minutes with the rotating speed of 750 revs/min.
Embodiment 3
A kind of environmental protection exterior wall paint, composed of the following components: water-washed kaoline 12kg, granularity be 7 μm wollastonite powder 6kg, Rutile type Titanium Dioxide 8kg, Natvosol 3kg, mould inhibitor 2kg, 12 carbon alkane 5kg, dispersion agent 2kg, aqueous acid alcohol resin defoamer 2kg, polyoxyethylene octylphenol ether series wetting agent 4kg and water 30kg.
The preparation method of this environmental protection exterior wall paint, is characterized in that, concrete step is:
A. weigh by raw material ratio, for subsequent use;
B. in mixing machine, add water, then add water-washed kaoline, titanium dioxide, wollastonite powder and dispersion agent successively, under 35 DEG C of conditions, stir 18 minutes with the rotating speed of 680 revs/min;
C. in step B gained mixture, add 12 carbon alkane, Mierocrystalline cellulose, wetting agent, defoamer and mould inhibitor successively, under 25 DEG C of conditions, stir 13 minutes with the rotating speed of 735 revs/min.
Embodiment 4
With publication number for exterior wall paint described in the application for a patent for invention of CN103113796A and preparation method thereof prepares exterior wall paint.
This exterior wall paint is composed of the following components: 16.81kg water, 0.5kg dispersion agent, 0.3kg wetting agent, 0.5kg defoamer, 2kg frostproofer propylene glycol, 1.2kg membrane-forming agent, 0.3kg mould inhibitor, 0.12kg sanitas, 18kg titanium dioxide, 15kg2000 order barium sulfate, 6kg calcined kaolin, 0.15kg Mierocrystalline cellulose, 0.12kgpH conditioning agent, 21.5kg self-crosslinking elastic emulsion, 17.0kg fluorine carbon emulsion, 0.5kg thickening material.
The preparation method of this exterior wall paint is:
A. 12kg water is added in dispersion cylinder, rotating speed 350 revs/min, add the dispersion agent of formula ratio, wetting agent and 0.2kg defoamer while stirring, and frostproofer propylene glycol, membrane-forming agent, mould inhibitor, the sanitas of formula ratio, stir 7 minutes;
B. under the rotating speed of 800 revs/min, add the titanium dioxide of formula ratio, 2000 order barium sulfate, calcined kaolin, then the Mierocrystalline cellulose of formula ratio and the mixture of 2.5kg water is added, add the pH adjusting agent of formula ratio, 1.5kg water again, disperse 25 minutes with the rotating speed of 1450 revs/min, reach the fineness of 45 microns;
C. under the rotating speed of 750 revs/min, add the self-crosslinking elastic emulsion of formula ratio, fluorine carbon emulsion, thickening material and 0.81kg water, then add 0.3kg defoamer, disperse 25 minutes, with 100 order sock filtration.
Embodiment 5
Harmful substance contents test and exterior wall paint performance test in exterior wall paint
The exterior wall paint that the exterior wall paint prepare embodiment 1,2,3 (being respectively experimental group 1, experimental group 2, experimental group 3) and embodiment 4 (control group) prepare carries out volatile organic compounds total amount, benzene content, toluene, ethylbenzene and xylene content summation, free formaldehyde content is tested, simultaneously, the exterior wall paint of each group is carried out to the performance test of low-temperature stability, water tolerance, alkali resistance, abrasion resistance, artificial weathering ageing resistance, efflorescence, variable color, contamination resistance, coating temperature-change resistance aspect, test result is as shown in the table:
Remarks: volatile organic compounds total amount, benzene content, toluene, ethylbenzene and xylene content summation, free formaldehyde content is tested according to People's Republic of China's chemical industry standard " in exterior coating for building limits of harmful substances GB24408-2009 ", low-temperature stability is tested according to " exterior wall coating material of synthetic resin emulsion GB/T9755-2001 ", water tolerance is tested according to " paint film water tolerance measuring method GB/T1733-1993 ", alkali resistance is tested according to " the mensuration GB/T9265-2009 of building coating coating alkali resistance ", abrasion resistance is tested according to " the mensuration GB/T9266-2009 of building coating coating abrasion resistance ", artificial weathering ageing resistance tests according to " paint and varnish artificial weathering and man-made radiation expose the xenon arc radiation GB/T1865-2009 of filtration ", efflorescence is tested according to " measuring method of colored paint coating efflorescence degree and evaluation ", variable color is tested according to " the assessment method GB/T1766-1995 of paint and varnish coating aging ", contamination resistance is tested according to " exterior wall coating material of synthetic resin emulsion GB/T9755-2001 ", coating temperature-change resistance (5 circulations) is tested according to " building coating coating is resistance to melts cyclicity assay method JG/T25-1999 ".
From above test result, compared with control group, the volatile organic compounds total amount in experimental group exterior wall paint reduces 27.7%; Benzene content reduces 29.9%; Toluene, ethylbenzene and xylene content summation reduce 26.8%; Free formaldehyde content reduces 27%.Prove thus, the volatile organic compounds total amount in environmental protection exterior wall paint of the present invention, benzene content, toluene, ethylbenzene and xylene content summation, free formaldehyde content obtains obvious reduction.Experimental group is identical with the low-temperature stability of control group exterior wall paint, and the abrasion resistance of experimental group and control group exterior wall paint is close.The performance of the water tolerance of the exterior wall paint of experimental group, alkali resistance, artificial weathering ageing resistance, efflorescence, variable color, contamination resistance, coating temperature-change resistance aspect is obviously better than control group.Prove thus, the weathering resistance of environmental protection exterior wall paint of the present invention obtains obvious improvement.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, those of ordinary skill in the art is to be understood that, can modify to technical scheme or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (9)
1. an environmental protection exterior wall paint, it is characterized in that, be made up of the component of following weight part: water-washed kaoline 6-15 part, wollastonite powder 5-10 part, titanium dioxide 6-9 part, Mierocrystalline cellulose 2-5 part, mould inhibitor 1-3 part, 12 carbon alkane 3-6 parts, dispersion agent 1-3 part, defoamer 1.5-2.5 part, wetting agent 3-5 part and water 25-40 part.
2. environmental protection exterior wall paint according to claim 1, it is characterized in that, be made up of the component of following weight part: water-washed kaoline 12 parts, wollastonite powder 6 parts, titanium dioxide 8 parts, Mierocrystalline cellulose 3 parts, mould inhibitor 2 parts, 5 parts, 12 carbon alkane, dispersion agent 2 parts, defoamer 2 parts, wetting agent 4 parts and 30 parts, water.
3. environmental protection exterior wall paint according to claim 1, is characterized in that: the granularity of described wollastonite powder is 6-8 μm.
4. environmental protection exterior wall paint according to claim 1, is characterized in that, described titanium dioxide is Rutile type Titanium Dioxide.
5. environmental protection exterior wall paint according to claim 1, is characterized in that: described Mierocrystalline cellulose is Natvosol.
6. environmental protection exterior wall paint according to claim 1, is characterized in that: described defoamer is aqueous acid alcohol resin defoamer.
7. environmental protection exterior wall paint according to claim 1, is characterized in that: described wetting agent is polyoxyethylene octylphenol ether series wetting agent.
8. the preparation method of environmental protection exterior wall paint according to claim 1, is characterized in that, concrete steps are:
A. weigh by raw material ratio, for subsequent use;
B. in mixing machine, add water, then add water-washed kaoline, titanium dioxide, wollastonite powder and dispersion agent successively, stir 15-20 minute with the rotating speed of 650-700 rev/min;
C. in step B gained mixture, add 12 carbon alkane, Mierocrystalline cellulose, wetting agent, defoamer and mould inhibitor successively, stir 12-15 minute with the rotating speed of 720-750 rev/min.
9. preparation method according to claim 8, is characterized in that: in whipping process described in step B, temperature is 32-40 DEG C, and in whipping process described in step C, temperature is 24-28 DEG C.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102676014A (en) * | 2012-05-30 | 2012-09-19 | 浙江好途程新型建材有限公司 | Staining-resistant heat-insulationcoating and preparation method thereof |
| US20130084396A1 (en) * | 2007-08-23 | 2013-04-04 | Delbert C. Scranton, Jr. | Method for producing dry metal oxide compositions and coated substrates |
| CN103525138A (en) * | 2013-08-27 | 2014-01-22 | 东莞市明天纳米科技有限公司 | Nano-photocatalyst air-purification wall paint and preparation method thereof |
| CN104530889A (en) * | 2015-01-26 | 2015-04-22 | 重庆索利特涂料有限公司 | Heat-insulating heat-preserving coating and preparation method thereof |
-
2015
- 2015-10-15 CN CN201510673984.4A patent/CN105273448A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130084396A1 (en) * | 2007-08-23 | 2013-04-04 | Delbert C. Scranton, Jr. | Method for producing dry metal oxide compositions and coated substrates |
| CN102676014A (en) * | 2012-05-30 | 2012-09-19 | 浙江好途程新型建材有限公司 | Staining-resistant heat-insulationcoating and preparation method thereof |
| CN103525138A (en) * | 2013-08-27 | 2014-01-22 | 东莞市明天纳米科技有限公司 | Nano-photocatalyst air-purification wall paint and preparation method thereof |
| CN104530889A (en) * | 2015-01-26 | 2015-04-22 | 重庆索利特涂料有限公司 | Heat-insulating heat-preserving coating and preparation method thereof |
Non-Patent Citations (2)
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| 孙传尧: "《选矿工程师手册（第4册）》", 31 March 2015, 冶金工业出版社 * |
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Application publication date: 20160127 |