CN107474719A - A kind of anti-soil white paint - Google Patents
A kind of anti-soil white paint Download PDFInfo
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- CN107474719A CN107474719A CN201710851665.7A CN201710851665A CN107474719A CN 107474719 A CN107474719 A CN 107474719A CN 201710851665 A CN201710851665 A CN 201710851665A CN 107474719 A CN107474719 A CN 107474719A
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- polyurethane resin
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
- C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4266—Polycondensates having carboxylic or carbonic ester groups in the main chain prepared from hydroxycarboxylic acids and/or lactones
- C08G18/4269—Lactones
- C08G18/4277—Caprolactone and/or substituted caprolactone
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6603—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6607—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6625—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/34
-
- 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
- C09D175/06—Polyurethanes from polyesters
-
- 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
- C09D175/08—Polyurethanes from polyethers
-
- 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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1606—Antifouling paints; Underwater paints characterised by the anti-fouling agent
- C09D5/1612—Non-macromolecular compounds
- C09D5/1618—Non-macromolecular compounds 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
- C09D5/1662—Synthetic film-forming substance
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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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
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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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Abstract
The present invention relates to a kind of anti-soil white paint, according to the mass fraction, is specifically made by following component:30 40 parts of waterborne polyurethane resin, 12 parts of polyethylene glycol, 35 parts of stearic acid, 15 20 parts of titanium dioxide, 58 parts of nano level active charcoal, 0.2 0.3 parts of anti-settling agent, 0.1 0.4 parts of defoamer, 0.2 0.6 parts of levelling agent, 20 30 parts of white spirit.By experiment, a kind of anti-soil white paint provided by the invention, by using special waterborne polyurethane resin as raw material, while optimize paint production technique, make to which give the stain resistance of far superior to commercially available prod, the market competitiveness is extremely strong.
Description
Technical field
The invention belongs to technical field of coatings, and in particular to a kind of anti-soil white paint.
Background technology
Paint is that one kind can firmly be covered in body surface, and the chemistry for playing protection, decoration, mark and other specific uses mixes
Compound coating.Chinese coating circle is more authoritative《Coating process》What one book was defined as:" coating is a kind of material, this
Material can be coated in object surface with different construction technologies, and it is firm, thin with some strength, continuous solid-state to form adhesion
Film.The film common name film so formed, also known as paint film or coating." coating is typically by film forming matter, color stuffing, solvent, auxiliary agent etc.
Four parts form.According to performance requirement, composition can be slightly changed sometimes, as varnish does not have not having in color stuffing, powdery paints
Solvent.Paint belongs to organic chemical industry's macromolecular material, and the film formed belongs to high-molecular compound type.It is current according to the modern times
Chemical products classification, coating belongs to fine chemical product.Modern coating progressively turns into a kind of multi-functional work
Journey material, it is an important industry in chemical industry.
White paint is a kind of most wide paint of use range, but white paint is poor due to its color characteristics, stain resistance, it is easy to
Its aesthetics is influenceed, while clears up difficulty.
The content of the invention
In order to solve the above problems, the invention provides a kind of anti-soil white paint.
The present invention is achieved through the following technical solutions:
A kind of anti-soil white paint, according to the mass fraction, specifically it is made by following component:Waterborne polyurethane resin 30-40 parts, poly- second two
Alcohol 1-2 parts, stearic acid 3-5 parts, titanium dioxide 15-20 parts, nano level active charcoal 5-8 parts, anti-settling agent 0.2-0.3 parts, defoamer
0.1-0.4 parts, levelling agent 0.2-0.6 parts, white spirit 20-30 parts;
The waterborne polyurethane resin, specially its preparation method, following steps:
A according to the mass fraction, by butanediol 10-15 parts, polytetrahydrofuran diol 25-30 parts, polypropylene glycol adipate glycol
5-15 parts, polycaprolactone glycol 10-15 parts first use vacuum freeze drying to water content below 0.05%, are subsequently placed in high mixed
In machine, 5-8 minutes are sufficiently mixed in 120-125 DEG C, obtain material A;Material fragility is lifted after freeze-drying, then using height
Mixed machine mixing, can be such that storeroom more uniformly disperses, and ensure that subsequent reactions are fully uniformly carried out, avoid catalyst point
Contamination of raw material caused by solution, greatly promote the antifouling property of waterborne polyurethane resin;
The material A is transferred in reactor by B, add the 0.1-0.16 times of material A mass fraction diisocyanate and
The DMPA of the 0.2-0.4 times of material A mass fraction, prior to 110-112 DEG C insulation, fully reacts 20-25 minutes, then cools
To 80-85 DEG C of insulation, the catalyst of the 0.02-0.04 times of material A mass fraction is added, continues to react 30-40 minutes, uses
The method that high temperature and catalyst combine, both reduces the reaction time, turn avoid the generation of impurity in course of reaction;
(3)NCO content in reactor is detected, when NCO content reaches theoretical value, is added after being cooled to 50-60 DEG C described in 1 times
The dimethylethanolamine of DMPA mass fractions, continue to react 12-18 minutes, obtain performed polymer;
(4)The performed polymer is poured into No. two reactors with deionized water, adds 0.3-0.4 times of described performed polymer quality part
Several sulfonate sodiums, the 2000r/min high-speed stirred 90-120 seconds, then through chain extending reaction, produce the waterborne polyurethane resin.
A kind of anti-soil white paint, specially its preparation method, following steps:
(1)The waterborne polyurethane resin, polyethylene glycol, stearic acid, titanium dioxide are sufficiently stirred in 50-60 DEG C, 2000r/min
8-10 minutes, then add white spirit and the nano level active charcoal, ball milling sieves 80 mesh after 90-120 minutes, obtains centrotheca;
(2)The centrotheca is added into the anti-settling agent, defoamer, levelling agent, under the conditions of 30-32 DEG C, 800-1000r/min after
Continuous stirring 10-15 minutes, obtain secondary slurry;
(3)The secondary slurry was placed in old pond after old 2-3 hours and got product.
Beneficial effects of the present invention:The present invention uses special waterborne polyurethane resin as raw material, in aqueous polyurethane tree
In fat production process, its raw material is lifted into material fragility after freeze-drying, then mixed using high mixer, storeroom can be made
It is more uniform scattered, ensure that subsequent reactions are fully uniformly carried out, avoid contamination of raw material caused by catalyst decomposes, greatly
The antifouling property of big lifting waterborne polyurethane resin;The method combined in esterification reaction process using high temperature and catalyst, both
Reduce the reaction time, turn avoid the generation of impurity in course of reaction, further lift the pollution resistance of waterborne polyurethane resin
Energy.Paint is produced using the splendid waterborne polyurethane resin of antifouling property, cooperation with the addition of nano level active charcoal, have paint
The simultaneously self-cleaning function of absorbing oxide.By experiment, a kind of anti-soil white paint provided by the invention, by using special water-based poly-
Urethane resin optimizes paint production technique as raw material, makes to which give the stain resistance of far superior to commercially available prod, city
Field competitiveness is extremely strong.
Embodiment
Embodiment 1
A kind of anti-soil white paint, according to the mass fraction, specifically it is made by following component:30 parts of waterborne polyurethane resin, polyethylene glycol 1
Part, 3 parts of stearic acid, 15 parts of titanium dioxide, 5 parts of nano level active charcoal, 0.2 part of anti-settling agent, 0.1 part of defoamer, 0.2 part of levelling agent,
20 parts of white spirit;
The waterborne polyurethane resin, specially its preparation method, following steps:
A according to the mass fraction, by 10 parts of butanediol, 25 parts of polytetrahydrofuran diol, 5 parts of polypropylene glycol adipate glycol, poly-
10 parts of caprolactone diol first uses vacuum freeze drying below 0.05%, to be subsequently placed in water content in high mixer, in 120-
125 DEG C are sufficiently mixed 5-8 minutes, obtain material A;
The material A is transferred in reactor by B, adds the diisocyanate and 0.2 of the 0.1-0.16 times of material A mass fraction
The DMPA of the material A mass fraction again, fully prior to 110-112 DEG C insulation, reaction 20 minutes, is then cooled to 80-85 DEG C
Insulation, the catalyst of 0.02 times of material A mass fraction is added, continue reaction 30 minutes;
(3)NCO content in reactor is detected, when NCO content reaches theoretical value, is added after being cooled to 50-60 DEG C described in 1 times
The dimethylethanolamine of DMPA mass fractions, continue reaction 12 minutes, obtain performed polymer;
(4)The performed polymer is poured into No. two reactors with deionized water, 0.3 times of performed polymer quality number of addition
Sulfonate sodium, 2000r/min high-speed stirreds 90 seconds, then through chain extending reaction, produce the waterborne polyurethane resin.
A kind of anti-soil white paint, specially its preparation method, following steps:
(1)The waterborne polyurethane resin, polyethylene glycol, stearic acid, titanium dioxide are sufficiently stirred in 50-60 DEG C, 2000r/min
8 minutes, then add white spirit and the nano level active charcoal, ball milling sieves 80 mesh after 90 minutes, obtains centrotheca;
(2)The centrotheca is added into the anti-settling agent, defoamer, levelling agent, under the conditions of 30-32 DEG C, 800-1000r/min after
Continuous stirring 10 minutes, obtains secondary slurry;
(3)The secondary slurry is placed in old pond after old 2 hours and got product.
Embodiment 2
A kind of anti-soil white paint, according to the mass fraction, specifically it is made by following component:40 parts of waterborne polyurethane resin, polyethylene glycol 2
Part, 5 parts of stearic acid, 20 parts of titanium dioxide, 8 parts of nano level active charcoal, 0.3 part of anti-settling agent, 0.4 part of defoamer, 0.6 part of levelling agent,
30 parts of white spirit;
The waterborne polyurethane resin, specially its preparation method, following steps:
A according to the mass fraction, by 15 parts of butanediol, 30 parts of polytetrahydrofuran diol, 15 parts of polypropylene glycol adipate glycol, poly-
15 parts of caprolactone diol first uses vacuum freeze drying below 0.05%, to be subsequently placed in water content in high mixer, in 120-
125 DEG C are sufficiently mixed 8 minutes, obtain material A;
The material A is transferred in reactor by B, the diisocyanate of 0.16 times of material A mass fraction of addition and 0.4 times of institute
The DMPA of material A mass fraction is stated, prior to 110-112 DEG C insulation, fully reaction 25 minutes, is then cooled to 80-85 DEG C of insulation,
The catalyst of 0.04 times of material A mass fraction is added, continues reaction 40 minutes;
(3)NCO content in reactor is detected, when NCO content reaches theoretical value, is added after being cooled to 50-60 DEG C described in 1 times
The dimethylethanolamine of DMPA mass fractions, continue reaction 18 minutes, obtain performed polymer;
(4)The performed polymer is poured into No. two reactors with deionized water, 0.4 times of performed polymer quality number of addition
Sulfonate sodium, 2000r/min high-speed stirreds 120 seconds, then through chain extending reaction, produce the waterborne polyurethane resin.
A kind of anti-soil white paint, specially its preparation method, following steps:
(1)The waterborne polyurethane resin, polyethylene glycol, stearic acid, titanium dioxide are sufficiently stirred in 50-60 DEG C, 2000r/min
10 minutes, then add white spirit and the nano level active charcoal, ball milling sieves 80 mesh after 120 minutes, obtains centrotheca;
(2)The centrotheca is added into the anti-settling agent, defoamer, levelling agent, under the conditions of 30-32 DEG C, 800-1000r/min after
Continuous stirring 15 minutes, obtains secondary slurry;
(3)The secondary slurry is placed in old pond after old 3 hours and got product.
Embodiment 3
A kind of anti-soil white paint, according to the mass fraction, specifically it is made by following component:35 parts of waterborne polyurethane resin, polyethylene glycol
1.5 parts, 4 parts of stearic acid, 18 parts of titanium dioxide, 7 parts of nano level active charcoal, 0.25 part of anti-settling agent, 0.3 part of defoamer, levelling agent 0.4
Part, 25 parts of white spirit;
The waterborne polyurethane resin, specially its preparation method, following steps:
A according to the mass fraction, by 12 parts of butanediol, 27 parts of polytetrahydrofuran diol, 10 parts of polypropylene glycol adipate glycol, poly-
12 parts of caprolactone diol first uses vacuum freeze drying below 0.05%, to be subsequently placed in water content in high mixer, in 120-
125 DEG C are sufficiently mixed 6 minutes, obtain material A;
The material A is transferred in reactor by B, the diisocyanate of 0.14 times of material A mass fraction of addition and 0.3 times of institute
The DMPA of material A mass fraction is stated, prior to 110-112 DEG C insulation, fully reaction 23 minutes, is then cooled to 80-85 DEG C of insulation,
The catalyst of 0.03 times of material A mass fraction is added, continues reaction 35 minutes;
(3)NCO content in reactor is detected, when NCO content reaches theoretical value, is added after being cooled to 50-60 DEG C described in 1 times
The dimethylethanolamine of DMPA mass fractions, continue reaction 17 minutes, obtain performed polymer;
(4)The performed polymer is poured into No. two reactors with deionized water, adds 0.35 times of performed polymer quality number
Sulfonate sodium, 2000r/min high-speed stirreds 100 seconds, then through chain extending reaction, produce the waterborne polyurethane resin.
A kind of anti-soil white paint, specially its preparation method, following steps:
(1)The waterborne polyurethane resin, polyethylene glycol, stearic acid, titanium dioxide are sufficiently stirred in 50-60 DEG C, 2000r/min
9 minutes, then add white spirit and the nano level active charcoal, ball milling sieves 80 mesh after 100 minutes, obtains centrotheca;
(2)The centrotheca is added into the anti-settling agent, defoamer, levelling agent, under the conditions of 30-32 DEG C, 800-1000r/min after
Continuous stirring 13 minutes, obtains secondary slurry;
(3)The secondary slurry is placed in old pond after old 2.5 hours and got product.
Comparative example
This comparative example compared with Example 1, without using the waterborne polyurethane resin, using only commercially available standard aqueous polyurethane tree
Fat, method and step all same in addition.
Control group
Commercially available anti-soil white paint.
The paint film to form 100 μ m-thicks is smeared using above-mentioned 5 kinds of anti-soil white paints respectively, then tests the antifouling property of paint film,
Method of testing is to be separately immersed in paint film in the alcoholic solution that pure toluene and mass fraction are 95% 24 hours, calculates its absorption
Rate, as a result such as table 1:
Table 1
Toluene absorptivity(%) | Alcohol absorption rate(%) | |
Embodiment 1 | 7.9 | 6.3 |
Embodiment 2 | 7.4 | 5.9 |
Embodiment 3 | 8.1 | 5.9 |
Comparative example | 16.6 | 15.8 |
Control group | 22.3 | 18.1 |
As shown in Table 1, a kind of anti-soil white paint provided by the invention, by using special waterborne polyurethane resin as raw material, together
Shi Youhua paint production techniques, make to which give the stain resistance of far superior to commercially available prod, and the market competitiveness is extremely strong.
Claims (4)
1. a kind of anti-soil white paint, it is characterised in that according to the mass fraction, be specifically made by following component:Waterborne polyurethane resin
30-40 parts, polyethylene glycol 1-2 parts, stearic acid 3-5 parts, titanium dioxide 15-20 parts, nano level active charcoal 5-8 parts, anti-settling agent 0.2-
0.3 part, defoamer 0.1-0.4 parts, levelling agent 0.2-0.6 parts, white spirit 20-30 parts;
The waterborne polyurethane resin, specially its preparation method, following steps:
A according to the mass fraction, by butanediol 10-15 parts, polytetrahydrofuran diol 25-30 parts, polypropylene glycol adipate glycol
5-15 parts, polycaprolactone glycol 10-15 parts first use vacuum freeze drying to water content below 0.05%, are subsequently placed in high mixed
In machine, 5-8 minutes are sufficiently mixed in 120-125 DEG C, obtain material A;
The material A is transferred in reactor by B, add the 0.1-0.16 times of material A mass fraction diisocyanate and
The DMPA of the 0.2-0.4 times of material A mass fraction, prior to 110-112 DEG C insulation, fully reacts 20-25 minutes, then cools
To 80-85 DEG C of insulation, the catalyst of the 0.02-0.04 times of material A mass fraction is added, continues to react 30-40 minutes;
(3)NCO content in reactor is detected, when NCO content reaches theoretical value, is added after being cooled to 50-60 DEG C described in 1 times
The dimethylethanolamine of DMPA mass fractions, continue to react 12-18 minutes, obtain performed polymer;
(4)The performed polymer is poured into No. two reactors with deionized water, adds 0.3-0.4 times of described performed polymer quality part
Several sulfonate sodiums, the 2000r/min high-speed stirred 90-120 seconds, then through chain extending reaction, produce the waterborne polyurethane resin.
A kind of 2. anti-soil white paint according to claim 1, it is characterised in that a kind of anti-soil white paint, according to the mass fraction, tool
Body is made by following component:35 parts of waterborne polyurethane resin, 1.5 parts of polyethylene glycol, 4 parts of stearic acid, 18 parts of titanium dioxide, nanoscale
7 parts of activated carbon, 0.25 part of anti-settling agent, 0.3 part of defoamer, 0.4 part of levelling agent, 25 parts of white spirit.
3. a kind of anti-soil white paint according to claim 1 or 2, it is characterised in that the waterborne polyurethane resin, it is prepared
Method, specially following steps:
A according to the mass fraction, by 12 parts of butanediol, 27 parts of polytetrahydrofuran diol, 10 parts of polypropylene glycol adipate glycol, poly-
12 parts of caprolactone diol first uses vacuum freeze drying below 0.05%, to be subsequently placed in water content in high mixer, in 120-
125 DEG C are sufficiently mixed 6 minutes, obtain material A;
The material A is transferred in reactor by B, the diisocyanate of 0.14 times of material A mass fraction of addition and 0.3 times of institute
The DMPA of material A mass fraction is stated, prior to 110-112 DEG C insulation, fully reaction 23 minutes, is then cooled to 80-85 DEG C of insulation,
The catalyst of 0.03 times of material A mass fraction is added, continues reaction 35 minutes;
(3)NCO content in reactor is detected, when NCO content reaches theoretical value, is added after being cooled to 50-60 DEG C described in 1 times
The dimethylethanolamine of DMPA mass fractions, continue reaction 17 minutes, obtain performed polymer;
(4)The performed polymer is poured into No. two reactors with deionized water, adds 0.35 times of performed polymer quality number
Sulfonate sodium, 2000r/min high-speed stirreds 100 seconds, then through chain extending reaction, produce the waterborne polyurethane resin.
4. a kind of preparation method of anti-soil white paint according to claim 1, it is characterised in that be specially following steps:
(1)The waterborne polyurethane resin, polyethylene glycol, stearic acid, titanium dioxide are sufficiently stirred in 50-60 DEG C, 2000r/min
8-10 minutes, then add white spirit and the nano level active charcoal, ball milling sieves 80 mesh after 90-120 minutes, obtains centrotheca;
(2)The centrotheca is added into the anti-settling agent, defoamer, levelling agent, under the conditions of 30-32 DEG C, 800-1000r/min after
Continuous stirring 10-15 minutes, obtain secondary slurry;
(3)The secondary slurry was placed in old pond after old 2-3 hours and got product.
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CN109096894A (en) * | 2018-06-05 | 2018-12-28 | 电子科技大学中山学院 | High-temperature-resistant coating for surface of heating element of electric water heater and preparation method thereof |
CN111171272A (en) * | 2020-03-12 | 2020-05-19 | 山东天庆科技发展有限公司 | Novel composite ion solvent-free waterborne polyurethane and preparation method thereof |
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CN105860806A (en) * | 2016-05-04 | 2016-08-17 | 雅图高新材料有限公司 | Automotive water-borne one-component white paint with excellent comprehensive property and preparation method thereof |
CN107033322A (en) * | 2017-05-11 | 2017-08-11 | 佛山市尚峰高分子科技有限公司 | A kind of aqueous polyurethane matting resin |
CN107090242A (en) * | 2017-06-16 | 2017-08-25 | 广东东华光电科技有限公司 | A kind of complete mute white paint of environmentally friendly minute surface |
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CN104987815A (en) * | 2015-07-31 | 2015-10-21 | 中华制漆(新丰)有限公司 | Polyurethane white paint as well as preparation method and application thereof |
CN105693983A (en) * | 2016-04-29 | 2016-06-22 | 浙江深蓝轻纺科技有限公司 | Waterborne extinction polyurethane resin and preparation method thereof |
CN105860806A (en) * | 2016-05-04 | 2016-08-17 | 雅图高新材料有限公司 | Automotive water-borne one-component white paint with excellent comprehensive property and preparation method thereof |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN109096894A (en) * | 2018-06-05 | 2018-12-28 | 电子科技大学中山学院 | High-temperature-resistant coating for surface of heating element of electric water heater and preparation method thereof |
CN111171272A (en) * | 2020-03-12 | 2020-05-19 | 山东天庆科技发展有限公司 | Novel composite ion solvent-free waterborne polyurethane and preparation method thereof |
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