CN104592875A - Anti-cracking PU white undercoat and preparation process thereof - Google Patents
Anti-cracking PU white undercoat and preparation process thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/002—Priming paints
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
Abstract
The invention discloses an anti-cracking PU white undercoat and a preparation process thereof. The preparation process comprises the steps of sequentially adding modified synthetic resin fat, organic bentonite slurry, a modified adhesive force aid and a defoaming agent into a dispersing cylinder, regulating the rotation speed to be 1000r/min, dispersing for 5-8 minutes until the mixture is uniformly dispersed, adding rutile titanium dioxide, regulating the rotation speed to be 1500r/min, dispersing for 15-20 minutes, then maintaining the rotation speed constant, sequentially adding zinc stearate, special coat preparing powder and talcum powder, dispersing for 10 minutes, regulating the rotation speed to be 1000r/min, sequentially adding a flatting agent, butanol acetate and a delaying agent, and dispersing for 5 minutes, so as to obtain the anti-cracking PU white undercoat. The anti-cracking PU white undercoat has excellent anti-cracking performance, is capable of adapting hostile, cold, hot, dry and wet environments, does not contain substances including benzene, methylbenzene and xylene and is environmentally friendly.
Description
Technical field
The present invention relates to crack resistence based white primer preparation field, be specifically related to a kind of PU crack resistence based white primer and manufacture craft thereof.
Background technology
Urethane (PU) coating is a class coating more common at present, can be divided into bicomponent polyurethane coating and one-can urethane coating.Bicomponent polyurethane coating is generally made up of isocyanate prepolymer (being also low molecule urethane polymer) and hydroxy-containing resin two portions, is commonly referred to curing agent component and host component.The kind of this class coating is a lot, and range of application is also very wide, and the difference according to hydroxy-containing component can be divided into the kinds such as acroleic acid polyurethane, alcohol acid and polyurethane, polyester-polyurethane, polyether-polyurethane, epoxy polyurethane.General all have good mechanical property, higher solids content, each side performance all relatively good.Its tool has the following advantages: (1), compared with other paint kind, under same rigidity, due to the effect of hydrogen bond, the elongation at break of PU paint film is the highest; (2) protectiveness and ornamental is had concurrently; (3) paint film adhesion is good; (4) paint film has excellent chemical proofing, acid-and base-resisting, salt, petroleum products; (5) can dry, also can low-temperature curing, can construction seasons long; (6) painting can be coordinated with multiple filmogen, many kinds can be made according to different requirements.Be a class coating variety rising at present, main application direction has woodwork coating, automobile repairing paint, protective system, floor paint, electronic paint, speciality coating, polyurethane water-proof paint etc.
At present; be applied in the PU based white primer on wood lacquer; because the seasonal climate difference in south and the ratio north is excessive; and in the replacement process in the four seasons; stand the southern hot and humid of summer and northern winter low temperature and low humidity drying severe environmental conditions test under; PU based white primer after construction often there will be crackle, affects the attractive in appearance of furniture, shortens the work-ing life of PU based white primer.
Application number is in the Chinese patent of " 201310740823.3 ", disclose the patent of invention that name is called " a kind of PU based white primer and showering method thereof ", composition in its PU based white primer mainly includes castor oil modified short oil-ity alcohol acid resin, titanium dioxide, the composition such as transparent powder and aerosil, make the PU based white primer in inventing in construction process, effectively prevent disconnected curtain, dodge the appearance of curtain, meet showering requirement, have the performance of anti-cracking to a certain extent, but, after construction is done solid work, when standing severe environment test, cracking phenomena may be there is.
Summary of the invention
In order to solve after existing PU based white primer does solid work, under the cycling condition of severe environment, there is the situation of cracking in paint film, the invention discloses a kind of PU crack resistence based white primer and manufacture technology thereof, there is excellent anti-cracking performance, severe cold and hot and dry wet environment can be adapted to, and not containing " triphen " class material, environmentally friendly.
A kind of PU crack resistence based white primer, is characterized in that, primarily of following raw material composition (by weight percentage than): modified synthesis fatty resin 30-40, organobentonite slurry 7, modification sticking power auxiliary agent 1-3, defoamer 0.1, rutile titanium white powder 13, Zinic stearas 2.5, special painting powder 28-38, talcum powder 5, flow agent 0.1, secondary butyl ester 3.1, delay agent 0.2.
Better, a kind of PU crack resistence based white primer, primarily of following raw material composition (by weight percentage than): modified synthesis fatty resin 32, organobentonite slurry 7, modification sticking power auxiliary agent 1, defoamer 0.1, rutile titanium white powder 13, Zinic stearas 2.5, special painting powder 36, talcum powder 5, flow agent 0.1, secondary butyl ester 3.1, delay agent 0.2.
Preferably, described special painting powder is the mixture of calcium carbonate and Magnesium Silicate q-agent.
Preferably, described delay agent is a kind of sodium compound.
A manufacture craft for PU crack resistence based white primer, is made by following processing step:
(1) by modified synthesis fatty resin, organobentonite is starched, modification sticking power auxiliary agent, and defoamer joins in dispersion cylinder successively, and rotating speed is adjusted to 1000r/min, and disperses 5-8min;
(2) after the component disperses of step (1) is even, add rutile titanium white powder, rotating speed is adjusted to 1500r/min, carry out dispersion 15-20min;
(3) keep invariablenes turning speed, add Zinic stearas successively, special painting powder, talcum powder, and disperse 10min;
(4) last, rotating speed is adjusted to 1000r/min, adds flow agent successively, secondary butyl ester, delay agent, and disperse 5min.
Advantage of the present invention is: the modified synthesis fatty resin in present component has the characteristic of high-solid lower-viscosity, and oil suction degree is large under the same conditions, powder oil number is diminished under the same conditions, adds the oil content of based white primer, effectively prevent cracking; Modification sticking power auxiliary agent can promote resin reaction, effectively improves the snappiness of based white primer; Calcium carbonate in special painting powder and the mixture oil number of Magnesium Silicate q-agent little, make based white primer under the same conditions oil number diminish, increase formula oil content, improve snappiness; In addition, not containing " triphen " class material in the composition of paint of the present invention, environmentally friendly.
Embodiment
The invention discloses a kind of PU crack resistence based white primer and manufacture technology thereof, there is excellent anti-cracking performance, severe cold and hot and dry wet environment can be adapted to, and not containing " triphen " class material, environmentally friendly.
Be clearly and completely described to the technical scheme in the present invention below, obviously, described is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all belongs to the scope of protection of the invention.
In following examples practical to raw material be commercially available, when not having specified otherwise, unit is (kg).
Embodiment 1
By 35 parts of modified synthesis fatty resins, 7 parts of organobentonite slurries, 1 part of modification sticking power auxiliary agent, 0.1 part of defoamer joins in dispersion cylinder successively, rotating speed is adjusted to 1000r/min, and disperse 5min, after said components is uniformly dispersed, add 13 parts of rutile titanium white powder, rotating speed is adjusted to 1500r/min, carry out dispersion 18min, then invariablenes turning speed is kept, add 2.5 parts of Zinic stearass successively, 35 parts of special painting powder, described special painting powder is the mixture of calcium carbonate and Magnesium Silicate q-agent, 5 parts of talcum powder, and disperse 10min, finally, rotating speed is adjusted to 1000r/min, add 0.1 part of flow agent successively, 3.1 secondary butyl esters, 0.2 part of delay agent, described delay agent is a kind of sodium compound, and disperse 5min, .
Embodiment 2
By 38 parts of modified synthesis fatty resins, 7 parts of organobentonite slurries, 2 parts of modification sticking power auxiliary agents, 0.1 part of defoamer joins in dispersion cylinder successively, rotating speed is adjusted to 1000r/min, and disperse 6min, after said components is uniformly dispersed, add 13 parts of rutile titanium white powder, rotating speed is adjusted to 1500r/min, carry out dispersion 20min, then invariablenes turning speed is kept, add 2.5 parts of Zinic stearass successively, 30 parts of special painting powder, described special painting powder is the mixture of calcium carbonate and Magnesium Silicate q-agent, 5 parts of talcum powder, and disperse 10min, finally, rotating speed is adjusted to 1000r/min, add 0.1 part of flow agent successively, 3.1 secondary butyl esters, 0.2 part of delay agent, described delay agent is a kind of sodium compound, and disperse 5min, .
Embodiment 3
By 32 parts of modified synthesis fatty resins, 7 parts of organobentonite slurries, 1 part of modification sticking power auxiliary agent, 0.1 part of defoamer joins in dispersion cylinder successively, rotating speed is adjusted to 1000r/min, and disperse 8min, after said components is uniformly dispersed, add 13 parts of rutile titanium white powder, rotating speed is adjusted to 1500r/min, carry out dispersion 15min, then invariablenes turning speed is kept, add 2.5 parts of Zinic stearass successively, 36 parts of special painting powder, described special painting powder is the mixture of calcium carbonate and Magnesium Silicate q-agent, 5 parts of talcum powder, and disperse 10min, finally, rotating speed is adjusted to 1000r/min, add 0.1 part of flow agent successively, 3.1 secondary butyl esters, 0.2 part of delay agent, described delay agent is a kind of sodium compound, and disperse 5min, .
The PU based white primer sample obtained by above-described embodiment, does relevant testing performance index as follows:
(1) crack resistence test condition: test environment range of temperature is-20 DEG C to 50 DEG C, and gradually change temperature, and carry out 10 cold cycling, the performance index of then carrying out being correlated with detect:
(2) test result and correlation detection index are as following table 1:
Table 1
Known by above embodiment, advantage of the present invention is: the modified synthesis fatty resin in present component has the characteristic of high-solid lower-viscosity, and oil suction degree is large under the same conditions, and powder oil number is diminished under the same conditions, add the oil content of based white primer, effectively prevent cracking; Modification sticking power auxiliary agent can promote resin reaction, effectively improves the snappiness of based white primer; Calcium carbonate in special painting powder and the mixture oil number of Magnesium Silicate q-agent little, make based white primer under the same conditions oil number diminish, increase formula oil content, improve snappiness; In addition, not containing " triphen " class material in the composition of paint of the present invention, environmentally friendly.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (5)
1. a PU crack resistence based white primer, is characterized in that, primarily of following raw material composition (by weight percentage): modified synthesis fatty resin 30-40, organobentonite slurry 7, modification sticking power auxiliary agent 1-3, defoamer 0.1, rutile titanium white powder 13, Zinic stearas 2.5, special painting powder 28-38, talcum powder 5, flow agent 0.1, secondary butyl ester 3.1, delay agent 0.2.
2. a kind of PU crack resistence based white primer according to claim 1, is characterized in that, primarily of following raw material composition (by weight percentage): modified synthesis fatty resin 32, organobentonite slurry 7, modification sticking power auxiliary agent 1, defoamer 0.1, rutile titanium white powder 13, Zinic stearas 2.5, special painting powder 36, talcum powder 5, flow agent 0.1, secondary butyl ester 3.1, delay agent 0.2.
3. a kind of PU crack resistence based white primer according to claim 1, is characterized in that, described special painting powder is the mixture of calcium carbonate and Magnesium Silicate q-agent.
4. a kind of PU crack resistence based white primer according to claim 1, it is characterized in that, described delay agent is a kind of sodium compound.
5. a kind of PU crack resistence based white primer according to Claims 1-4 any one, is characterized in that, be made by following processing step:
(1) by modified synthesis fatty resin, organobentonite is starched, modification sticking power auxiliary agent, and defoamer joins in dispersion cylinder successively, and rotating speed is adjusted to 1000r/min, and disperses 5-8min;
(2) after the component disperses of step (1) is even, add rutile titanium white powder, rotating speed is adjusted to 1500r/min, carry out dispersion 15-20min;
(3) keep invariablenes turning speed, add Zinic stearas successively, special painting powder, talcum powder, and disperse 10min;
(4) last, rotating speed is adjusted to 1000r/min, adds flow agent successively, secondary butyl ester, delay agent, and disperse 5min.
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| CN104592875B CN104592875B (en) | 2018-03-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108977036A (en) * | 2018-08-09 | 2018-12-11 | 中山市大涂料有限公司 | A kind of PU based white primer and preparation method thereof |
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| WO2012101115A1 (en) * | 2011-01-25 | 2012-08-02 | Basf Coatings Gmbh | Base coats for overbaked multi-layer coatings |
| CN102898938A (en) * | 2012-11-20 | 2013-01-30 | 成都展辰化工有限公司 | White paint special for polyurethane hard expanded polystyrene |
| CN103224604A (en) * | 2013-04-23 | 2013-07-31 | 久盛地板有限公司 | Modified epoxy acrylate and paint for wood underground heat floor prepared by the modified epoxy acrylate |
| CN104140755A (en) * | 2014-07-27 | 2014-11-12 | 北京东方雨虹防水技术股份有限公司 | Environment-friendly elastic weather-resistant acrylic polyurethane coating, preparation and application |
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2014
- 2014-12-30 CN CN201410839817.8A patent/CN104592875B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012101115A1 (en) * | 2011-01-25 | 2012-08-02 | Basf Coatings Gmbh | Base coats for overbaked multi-layer coatings |
| CN102898938A (en) * | 2012-11-20 | 2013-01-30 | 成都展辰化工有限公司 | White paint special for polyurethane hard expanded polystyrene |
| CN103224604A (en) * | 2013-04-23 | 2013-07-31 | 久盛地板有限公司 | Modified epoxy acrylate and paint for wood underground heat floor prepared by the modified epoxy acrylate |
| CN104140755A (en) * | 2014-07-27 | 2014-11-12 | 北京东方雨虹防水技术股份有限公司 | Environment-friendly elastic weather-resistant acrylic polyurethane coating, preparation and application |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108977036A (en) * | 2018-08-09 | 2018-12-11 | 中山市大涂料有限公司 | A kind of PU based white primer and preparation method thereof |
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