CN103409059B - A kind of Polyurethane crack lacquer and preparation method thereof - Google Patents
A kind of Polyurethane crack lacquer and preparation method thereof Download PDFInfo
- Publication number
- CN103409059B CN103409059B CN201310378543.2A CN201310378543A CN103409059B CN 103409059 B CN103409059 B CN 103409059B CN 201310378543 A CN201310378543 A CN 201310378543A CN 103409059 B CN103409059 B CN 103409059B
- Authority
- CN
- China
- Prior art keywords
- component
- speed
- urethane
- polyurethane
- lacquer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004922 lacquer Substances 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 23
- 239000004814 polyurethane Substances 0.000 title claims abstract description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 43
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000002904 solvent Substances 0.000 claims abstract description 29
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 26
- 239000011347 resin Substances 0.000 claims abstract description 23
- 229920005989 resin Polymers 0.000 claims abstract description 23
- 239000007787 solid Substances 0.000 claims abstract description 21
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 18
- 239000002270 dispersing agent Substances 0.000 claims abstract description 16
- 238000009736 wetting Methods 0.000 claims abstract description 16
- 239000003112 inhibitor Substances 0.000 claims abstract description 15
- 230000003647 oxidation Effects 0.000 claims abstract description 15
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 15
- 150000002148 esters Chemical class 0.000 claims abstract description 14
- 150000002576 ketones Chemical class 0.000 claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 12
- 235000012424 soybean oil Nutrition 0.000 claims abstract description 12
- 239000003549 soybean oil Substances 0.000 claims abstract description 12
- 238000000576 coating method Methods 0.000 claims abstract description 9
- 238000005498 polishing Methods 0.000 claims abstract description 7
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical group CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 40
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 27
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 22
- 239000011259 mixed solution Substances 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 19
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical group O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 12
- 238000009775 high-speed stirring Methods 0.000 claims description 12
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 11
- 238000005507 spraying Methods 0.000 claims description 11
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 239000013638 trimer Substances 0.000 claims description 8
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical group CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 claims description 7
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 claims description 7
- 229940043265 methyl isobutyl ketone Drugs 0.000 claims description 7
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical group CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 4
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 4
- 229910002012 Aerosil® Inorganic materials 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 230000037452 priming Effects 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 238000012546 transfer Methods 0.000 claims description 2
- 239000002966 varnish Substances 0.000 claims description 2
- 239000002023 wood Substances 0.000 abstract description 4
- 239000002320 enamel (paints) Substances 0.000 abstract description 2
- 230000032683 aging Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 11
- 239000002994 raw material Substances 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- 239000006185 dispersion Substances 0.000 description 9
- 239000003960 organic solvent Substances 0.000 description 7
- 238000012856 packing Methods 0.000 description 7
- 238000013019 agitation Methods 0.000 description 6
- 238000005034 decoration Methods 0.000 description 6
- 239000004925 Acrylic resin Substances 0.000 description 4
- 229920000178 Acrylic resin Polymers 0.000 description 4
- 208000037656 Respiratory Sounds Diseases 0.000 description 4
- 239000001913 cellulose Substances 0.000 description 4
- 229920002678 cellulose Polymers 0.000 description 4
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000000049 pigment Substances 0.000 description 4
- 229920001169 thermoplastic Polymers 0.000 description 4
- 239000004416 thermosoftening plastic Substances 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 235000010469 Glycine max Nutrition 0.000 description 3
- 244000068988 Glycine max Species 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 229920000180 alkyd Polymers 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000004902 Softening Agent Substances 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical group OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 235000010215 titanium dioxide Nutrition 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 235000019082 Osmanthus Nutrition 0.000 description 1
- 241000333181 Osmanthus Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 239000011527 polyurethane coating Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Abstract
The present invention relates to a kind of Polyurethane crack lacquer, be made up of by weight 2:1 component A and B component; Wherein, described component A is grouped into by the one-tenth of following weight part: soybean oil Synolac 30-45 part; Urethane supple resin 5-15 part; Anti-settling agent 0.5-2 part; Wetting dispersing agent 0.5-2 part; Oxidation inhibitor 0.2-0.5 part; Flatting silica 10-25 part; Polishing powder 20-45 part; Ketones solvent 2-3 part; Esters solvent 4-6 part.The present invention also provides preparation method and the coating process of described urethane strain indicating lacquer.Adopt urethane strain indicating lacquer of the present invention, can produce that hardness is high, sticking power is excellent and there is the film of graceful decorative pattern.Urethane enamel paint provided by the invention also has the high advantage of solid content and water-fast, ageing-resistant performance, meet GB? 18581-2009 standard is to the indices requirement of solvent wood coatings.
Description
Technical field
The present invention relates to polyurethanes woodwork coating, be specifically related to a kind of Polyurethane crack lacquer and preparation method thereof.
Background technology
In recent years along with development and the growth in the living standard of national economy, the style of building decoration is maked rapid progress, and the description of materials used in decoration gets more and more, and crackle class wood lacquer also rises at decoration industry.
Traditional crackle class wood lacquer is by nitro-cotton, pigment, pigment extender, organic solvent, the grinding such as auxiliary modulation.Because strain indicating lacquer mealiness content is high; the volatility of solvent is large; thus its shrinkability is large, and snappiness is little, and what after spraying, internal stress generation was higher pulls intensity; form good, uniform latticed grain pattern; strengthen the attractive in appearance of coatingsurface, protection and decoration function are served to body surface simultaneously, improves value-added content of product; obtain the favor of users, gradually become a kind of top grade decoration material conventional in building decoration.
The problem but the rear lacquer painting of traditional strain indicating lacquer existence cracking comes off, destroys the due three-dimensional art aesthetic feeling of strain indicating lacquer, even destroys overall decorative effect and cause quality problems.
Summary of the invention
The object of this invention is to provide a kind of Polyurethane crack lacquer.
Another object of the present invention is to provide the preparation method of above-mentioned Polyurethane crack lacquer.
To achieve these goals, the present invention adopts following technical scheme.
A kind of Polyurethane crack lacquer, is made up of by weight 2:1 component A and B component;
Wherein, the solids content of described component A is 71-76%, is grouped into by the one-tenth of following weight part:
Preferably, the solids content of described component A is 71-76%, is grouped into by the one-tenth of following weight percent:
Wherein, in component A:
Described soybean oil Synolac is the Synolac of viscosity requirement at 30000-50000cps;
Described urethane supple resin is the soft half fatty urethane resin of viscosity requirement at 2000-5000cps;
Described anti-settling agent is aerosil;
Described wetting dispersing agent is modified poly ester;
Described oxidation inhibitor is BHT, and chemical molecular formula is 2,6 ditertiary butyl p cresol;
Described flatting silica is superfine silicon dioxide, and namely particle diameter is the mute powder of≤2 μm;
Described talcous particle diameter is 1250 orders, and namely particle diameter is the talcum powder of 0.008mm;
The particle diameter of described calcium carbonate is 1500 orders, and namely particle diameter is the talcum powder of 0.006mm;
Described ketones solvent is methyl iso-butyl ketone (MIBK);
Described esters solvent is n-butyl acetate and ethyl acetate.
The solid content of described B component is 40-50%, is grouped into by the one-tenth of following weight percent:
Toluene diisocyanate trimer 80-100 part
N-butyl acetate 0-20 part;
Preferably, described B component is toluene diisocyanate trimer, and its solid content is 50%;
Described toluene diisocyanate trimer is isocyanurate curing dose.
Present invention also offers the preparation method of above-mentioned Polyurethane crack lacquer, the component A prepared and B component are mixed according to weight ratio 2:1.
Wherein, the preparation method of component A is:
1) first soybean oil Synolac, urethane supple resin, wetting dispersing agent and ketones solvent are mixed by proportioning, moderate-speed mixer obtains resin mixture liquor; Maintain stirring velocity, after adding oxidation inhibitor, transfer high-speed stirring to and obtain mixed solution 1;
2) under moderate-speed mixer, in mixed solution 1, add anti-settling agent, flatting silica, polishing powder, stop after high-speed stirring to fineness test≤50 μm, obtain mixed solution 2;
3) under moderate-speed mixer, in mixed solution 2, add esters solvent, turn high-speed stirring, obtained component A.
Wherein, moderate-speed mixer 400-800r/min, churning time 5-10min in described step 1); High-speed stirring is 850-1200r/min, churning time 5-10min;
Described step 2) in stirring at low speed be 400-800r/min, churning time 5-10min; High-speed stirring 1500-1800r/min, churning time 15-20min;
Moderate-speed mixer 400-800r/min, churning time 5-10min in described step 3); High-speed stirring 850-1200r/min, churning time 5-10min.
Described B component mixes obtained by proportioning by toluene diisocyanate trimer and/or n-butyl acetate.
Present invention also offers the coating process requirement that above-mentioned urethane strain indicating lacquer is applied in woodwork.Concrete coating process is: material process → spraying polyurethane seal coat → use after dry 12h 240# sand papering sanding → spraying polyurethane transparent priming → spray after dry 40-60min urethane strain indicating lacquer of the present invention → use 320# sand papering sanding → spraying polyurethane glossy varnish after dry 12h;
Described urethane strain indicating lacquer is when spraying, and need to coordinate thinner to use, the consumption of described thinner and urethane strain indicating lacquer is 0.8:3 by weight; Wherein:
Described thinner is grouped into by the one-tenth of following weight part:
Ethyl acetate 20-40%
N-butyl acetate 60-80%.
Preferably, described thinner is grouped into by the one-tenth of following weight part:
Ethyl acetate 20-30%
N-butyl acetate 70-80%
The kind of the esters solvent in described thinner is identical with esters solvent in component A.
Technique effect of the present invention is:
1, there is caducous problem for nitro class strain indicating lacquer, in urethane strain indicating lacquer provided by the invention in the urethane resin of component A and Synolac-NCO group,-OH group crosslinking curing in B component, obtained film adhesive is good, can to come off problem by efficient solution strain indicating lacquer of determining;
2, urethane strain indicating lacquer provided by the invention has comparatively excellent fullness ratio, and the film that paint application is formed is comparatively full, can form the protectiveness paint film (film thickness tester can be used to test) of >=150 μm after doing solid work.Meanwhile, under 25 DEG C of conditions, application 30-40min starts progressively to be ftractureed to middle part by edge, and the paint film crackle obtained is even, attractive in appearance;
3, urethane strain indicating lacquer provided by the invention controls crackle size by the evaporation rate adjusting thinner;
4, urethane strain indicating lacquer construction solid content provided by the invention is high, meets national environmental protection policy requirements instantly;
5, the mill base that urethane strain indicating lacquer provided by the invention also can be obtained with using Synolac is miscible, when addition≤30%, adjustablely allots various distinct colors.
Embodiment
Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
Below be used for illustrating the availability of raw material of the present invention, and should be used for limiting scope of the present invention:
Described soybean oil Synolac is the Synolac of viscosity requirement at 30000-50000cps, as the S5001 of Beijing exhibition occasion chemical industry;
Described urethane supple resin is the urethane resin of viscosity requirement at 2000-5000cps, as the U-335 widely collected;
Described anti-settling agent is aerosil, as the A-200 of Degussa;
Described wetting dispersing agent is modified poly ester, as the EFK4010 of EFKA;
Described oxidation inhibitor is BHT, as the BHT of Bayer Bitterfeld GmbH;
Described flatting silica is superfine silicon dioxide, as the 530L of space flight Saden;
Described talcous particle diameter is 1250 orders (namely particle diameter is the talcum powder of 0.008mm), as 1250 order talcum powder of osmanthus, Guilin China;
The particle diameter of described calcium carbonate is 1500 orders (namely particle diameter is the talcum powder of 0.006mm), calcium carbonate as fine in Haicheng;
Described ketones solvent is methyl iso-butyl ketone (MIBK), as the MIBK of sky, Nanchang nation chemical industry;
Described esters solvent is n-butyl acetate and ethyl acetate, as BAC and EAC created in Hunan;
Described toluene diisocyanate trimer is isocyanurate curing dose, as the HL of Beyer Co., Ltd;
Embodiment 1: urethane strain indicating lacquer
1, concrete proportioning is in Table 1-1, table 1-2.
Table 1-1:A component
| Composition | Weight (kg) | Weight percent (%) |
| Soybean oil Synolac | 40 | 40 |
| Urethane supple resin | 5 | 5 |
| Dust-proofing agent | 0.5 | 0.5 |
| Wetting dispersing agent | 1.5 | 1.5 |
| Oxidation inhibitor | 0.2 | 0.2 |
| Flatting silica | 20 | 20 |
| Talcum powder | 10 | 10 |
| Calcium carbonate | 15 | 15 |
| Ketones solvent | 2 | 2 |
| Esters solvent | 5.8 | 5.8 |
Table 1-2:B component
| Composition | Weight (kg) | Weight percent (%) |
| Chlorinated isocyanurates | 100 | 100 |
2, preparation method:
The preparation method of component A described in 2.1, comprises the steps:
1) take each raw material according to proportioning, add soybean oil Synolac, urethane supple resin, wetting dispersing agent and ketones solvent in advance, with rotating speed 400r/min, be uniformly dispersed to obtain resin mixture liquor; Maintain stirring velocity, after adding oxidation inhibitor, improve rotating speed and disperse 5min to 850r/min, obtain mixed solution 1;
2) under 400r/min agitation condition, in mixed solution 1, add anti-settling agent, flatting silica and polishing powder, 1500r/min disperses 15min, stops dispersion, obtain mixed solution 2 to fineness test≤50 μm;
3) under 300r/min agitation condition, in mixed solution 2, add esters solvent, disperse 5min by 850r/min, weigh on request, pack, obtained component A.
The theoretical solid content of component A is 78.7, component A solid content=soybean alkyd quality × 0.7+ urethane supple resin quality × 1+ opaque amount (i.e. the total mass of anti-settling agent, oxidation inhibitor, flatting silica, talcum powder and calcium carbonate);
The preparation method of the B component described in 2.2:
Chlorinated isocyanurates is stirred, then packing, obtained B component.The theoretical solid content of B component is 50, B component solid content=tolylene diisocyanate quality × 0.5;
Component A and B component are obtained urethane strain indicating lacquer by weight 2:1 mixing by 2.3.
3, using method: with the use of thinner during use, the total amount ratio of thinner and A, B component is 0.8:3, wherein thinner consist of in Table 1-3:
Table 1-3: thinner
| Composition | Weight (kg) | Weight percent (%) |
| Ethyl acetate | 20 | 20 |
| N-butyl acetate | 80 | 80 |
Mentioned component is stirred, packing.
In use, by the allotment of component A, B component and thinner evenly.
Embodiment 2: urethane strain indicating lacquer
1, concrete proportioning is in Table 2-1,2-2.
Table 2-1:A component
| Composition | Weight (kg) | Weight percent (%) |
| Soybean oil Synolac | 35 | 35 |
| Urethane supple resin | 7.5 | 7.5 |
| Dust-proofing agent | 1 | 1 |
| Wetting dispersing agent | 1.5 | 1.5 |
| Oxidation inhibitor | 0.3 | 0.3 |
| Flatting silica | 10 | 10 |
| Talcum powder | 12.5 | 12.5 |
| Calcium carbonate | 25 | 25 |
| Ketones solvent | 2.5 | 2.5 |
| Esters solvent | 4.7 | 4.7 |
Table 2-2:B component
| Composition | Weight (kg) | Weight percent (%) |
| Chlorinated isocyanurates | 100 | 100 |
2, preparation method:
The preparation method of component A described in 2.1, comprises the steps:
1) each raw material is taken according to proportioning, add soybean oil Synolac, urethane supple resin, wetting dispersing agent and ketones solvent in advance, with 600r/min stirring velocity, be uniformly dispersed to obtain resin mixture liquor, after adding oxidation inhibitor under 600r/min dispersion, improve rotating speed and disperse 8min to 1000r/min, obtain mixed solution 1;
2) under 600/min agitation condition, in mixed solution 1, add anti-settling agent, flatting silica and polishing powder, 1600r/min disperses 18min, stops dispersion, obtain mixed solution 2 to fineness test≤50 μm;
3) under 600r/min agitation condition, in mixed solution 2, add esters solvent, disperse 8min by 1000r/min, weigh on request, pack, obtained component A.
The theoretical solid content of component A is 80.8, component A solid content=soybean alkyd quality × 0.7+ urethane supple resin quality × 1+ opaque amount (i.e. the total mass of anti-settling agent, oxidation inhibitor, flatting silica, talcum powder and calcium carbonate);
The preparation method of the B component described in 2.2:
Just chlorinated isocyanurates stirs, then packing, obtained B component.The theoretical solid content of B component is 50, B component solid content=tolylene diisocyanate quality × 0.5;
Component A and B component are obtained urethane strain indicating lacquer by weight 2:1 mixing by 2.3.
3, using method: with the use of thinner during use, the total amount ratio of thinner and A, B component is 0.8:3, wherein thinner consist of in Table 2-3:
Table 2-3: thinner
| Composition | Weight (kg) | Weight percent (%) |
| Ethyl acetate | 25 | 25 |
| N-butyl acetate | 75 | 75 |
Mentioned component is stirred, packing.
In use, by the allotment of component A, B component and thinner evenly.
Embodiment 3: urethane enamel paint
1, concrete proportioning is in Table 3-1, table 3-2.
Table 3-1:A component
| Composition | Weight (kg) | Weight percent (%) |
| Soybean oil Synolac | 30 | 30 |
| Urethane supple resin | 10 | 10 |
| Dust-proofing agent | 1.5 | 0.5 |
| Wetting dispersing agent | 1 | 1.5 |
| Oxidation inhibitor | 0.2 | 0.2 |
| Flatting silica | 15 | 15 |
| Talcum powder | 15 | 20 |
| Calcium carbonate | 20 | 15 |
| Ketones solvent | 3 | 3 |
| Esters solvent | 4.3 | 4.3 |
Table 3-2:B component
| Composition | Weight (kg) | Weight percent (%) |
| Polymeric polyisocyanate | 100 | 100 |
2, preparation method:
The preparation method of component A described in 2.1, comprises the steps:
1) each raw material is taken according to proportioning, add soybean oil Synolac, urethane supple resin, wetting dispersing agent and ketones solvent in advance, with 800r/min stirring velocity, be uniformly dispersed to obtain resin mixture liquor, maintain stirring velocity, after adding oxidation inhibitor, improve rotating speed and disperse 10min to 1200r/min, obtain mixed solution 1;
2) under 800r/min agitation condition, in mixed solution 1, add anti-settling agent, flatting silica and polishing powder, 1800r/min disperses 20min, stops dispersion, obtain mixed solution 2 to fineness test≤50 μm;
3) under 800r/min agitation condition, in mixed solution 2, add esters solvent, disperse 10min by 1200r/min, weigh on request, pack, obtained component A.
The theoretical solid content of component A is 82.7, component A solid content=soybean alkyd quality × 0.7+ urethane supple resin quality × 1+ opaque amount (i.e. the total mass of anti-settling agent, oxidation inhibitor, flatting silica, talcum powder and calcium carbonate);
The preparation method of the B component described in 2.2:
Just chlorinated isocyanurates stirs, then packing, obtained B component.The theoretical solid content of B component is 50, B component solid content=tolylene diisocyanate quality × 0.5;
Component A and B component are obtained urethane strain indicating lacquer by weight 2:1 mixing by 2.3.
3, using method: with the use of thinner during use, the total amount ratio of thinner and A, B component is 0.8:3, wherein thinner consist of in Table 3-3:
Table 3-3: thinner
| Composition | Weight (kg) | Weight percent (%) |
| Ethyl acetate | 30 | 30 |
| N-butyl acetate | 70 | 70 |
Mentioned component is stirred, packing.
In use, by the allotment of component A, B component and thinner evenly.
Comparative example 1: a kind of strain indicating lacquer and preparation method thereof
Embodiment 1 with reference to Chinese patent application 200910190564.5:
Be made up of first component and thinner, the ratio of weight and number of described first component and thinner is 1:1;
Wherein said first component, comprises the following raw material counted by weight percentage:
Thermoplastic acrylic resin 16%, acetic acid butyl cellulose 5%, wetting dispersing agent 0.5%, flow agent 0.8%, carbon black 0.5%, rutile titanium white powder 10%, 3-ethoxyl ethyl propionate 5%, n-butyl acetate 62.2%;
Described thinner comprises the following raw material counted by weight percentage:
Toluene 50%
N-butyl acetate 50%;
Prepare the method for described strain indicating lacquer,
The preparation method of wherein said first component, comprises following preparation process:
1) take each raw material according to proportioning, in advance thermoplastic acrylic resin, wetting dispersing agent and n-butyl acetate (30-40% of n-butyl acetate content) are added, disperse 10-15min by 400-800r/min, obtain resin mixture liquor;
2) separately that acetic acid butyl cellulose is miscible by described amount and n-butyl acetate (60-70% of n-butyl acetate content), after stirring under 400-800r/min, high speed dispersion 10-15min, obtains acetic acid butyl cellulose liquid;
3) resin mixture liquor is pressed proportional quantity to mix with acetic acid butyl cellulose, disperse 5-10min by 400-800r/min;
4) then under 400-800r/min dispersion condition, add flow agent, 3-ethoxyl ethyl propionate, carbon black, rutile titanium white powder, improve rotating speed and disperse 15-20min to 1500-1800r/min, stop to fineness≤25 μm;
Above mixture is weighed on request, is packed, obtained first component;
Described thinner directly to be weighed packing by described amount;
During use, first component and thinner are allocated evenly according to the dilution proportioning of 1:1.
Comparative example 2: the spraying method of a kind of strain indicating lacquer and preparation method thereof and this strain indicating lacquer
Embodiment 1 with reference to Chinese patent application 200610063702.X:
Be made up of first component and solidifying agent, the ratio of weight and number of described first component and solidifying agent is 1:0.2;
Wherein said first component, comprises the following raw material counted by weight percentage:
Thermoplastic acrylic resin 33%, wetting dispersing agent 1.8%, anti-settling agent 1.1%, flow agent 1%, softening agent 1, pigment 14%, dumb light powder 14%, organic solvent 34.1%, solidifying agent is appropriate;
Described organic solvent comprises the following raw material counted by weight percentage:
Prepare the method for described strain indicating lacquer,
The preparation method of wherein said first component, comprises following preparation process:
1) take each raw material according to proportioning, in advance thermoplastic acrylic resin, wetting dispersing agent and organic solvent (60-70% of organic solvent content) are added, disperse 10-15min by 400-800r/min, obtain resin mixture liquor;
2) under 400-800r/min dispersion condition, add anti-settling agent, flow agent, softening agent, disperse 10-15min by 400-800r/min;
3) under 400-800r/min dispersion condition, add pigment and dumb light powder, improve rotating speed and disperse 15-20min to 1500-1800r/min, stop to fineness≤25 μm;
4) under 400-800r/min dispersion condition, add remaining organic solvent (30-40% of organic solvent content);
Above mixture is weighed on request, is packed, obtained first component;
Described solidifying agent adopts toluene diisocyanate trimer;
During use, first component and solidifying agent are allocated evenly according to the proportioning of 1:0.2.
Experimental example 1: physical property measurement
The urethane strain indicating lacquer of embodiments of the invention 1-3 gained is even according to weight ratio 3:0.8 mixing preparation, to be measured with thinner respectively.
Embodiment 1-3 urethane strain indicating lacquer after dilution, comparative example 1,2 are carried out related property test, and test result is as table 4,5:
The related property test of table 4: embodiment 1-3
Table 5: the relevant asexual test of comparative example 1,2
Table 4 and the display of 5 results:
The VOC of comparative example 1 is high, and transparency is good, and after spraying, perviousness is stronger; The fineness of comparative example 2 is low, and good dispersity, hardness are high, but comparative example 1 and comparative example 2 solid content low, the VOC of comparative example 1 even exceedes current VOC requirement, and simultaneously the sticking power of comparative example 1 and comparative example 2 is general, easily occurs depainting phenomenon in the winter time during application;
The physical properties of urethane strain indicating lacquer provided by the invention fullys meet national top standard, and its every workability is also all suitable with polyurethane coating of the same type, has graceful crack pattern simultaneously.
Conclusion: urethane strain indicating lacquer provided by the invention, its sticking power and other every workabilities all meet the requirement of GB18581-2009 standard to solvent wood coatings.
Although above with general explanation, embodiment and test, the present invention is described in detail, and on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, all belong to the scope of protection of present invention.
Claims (7)
1. a Polyurethane crack lacquer, is characterized in that, is made up of by weight 2:1 component A and B component;
Wherein, the solids content of described component A is 71-76%, is grouped into by the one-tenth of following weight percent:
The Synolac of described soybean oil Synolac to be viscosity be 30000-50000cps;
The soft half fatty urethane resin of described urethane supple resin to be viscosity be 2000-5000cps;
Described anti-settling agent is aerosil;
Described wetting dispersing agent is modified poly ester;
Described oxidation inhibitor is 2,6 ditertiary butyl p cresol;
Described flatting silica is superfine silicon dioxide;
Described polishing powder is talcum powder and calcium carbonate; Described talcous particle diameter is 1250 orders; The particle diameter of described calcium carbonate is 1500 orders;
Described ketones solvent is methyl iso-butyl ketone (MIBK);
Described esters solvent is n-butyl acetate and ethyl acetate;
Described B component is grouped into by the one-tenth of following weight percent:
Toluene diisocyanate trimer 80-100%;
N-butyl acetate 0-20%.
2. Polyurethane crack lacquer according to claim 1, is characterized in that, described B component is toluene diisocyanate trimer 100%.
3. the preparation method of Polyurethane crack lacquer described in claim 1 or 2, is characterized in that, the component A prepared and B component is mixed according to weight ratio 2:1 and obtains Polyurethane crack lacquer; Wherein, the preparation method of described component A is:
1) first soybean oil Synolac, urethane supple resin, wetting dispersing agent and ketones solvent are mixed by proportioning, moderate-speed mixer obtains resin mixture liquor; Maintain stirring velocity, after adding oxidation inhibitor, transfer high-speed stirring to and obtain mixed solution 1;
2) under moderate-speed mixer, in mixed solution 1, add anti-settling agent, flatting silica, polishing powder, high-speed stirring stops after detecting fineness≤50 μm, obtains mixed solution 2;
3) under moderate-speed mixer, in mixed solution 2, add esters solvent, turn high-speed stirring, obtained component A.
4. preparation method according to claim 3, is characterized in that, described step 1) in the speed of moderate-speed mixer be 400-800r/min, churning time is 5-10min; The speed of high-speed stirring is 850-1200r/min, and churning time is 5-10min;
Described step 2) in the speed of moderate-speed mixer be 400-800r/min, churning time is 5-10min; The speed of high-speed stirring is 1500-1800r/min, and churning time is 15-20min;
Described step 3) in the speed of moderate-speed mixer be 400-800r/min, churning time is 5-10min; The speed of high-speed stirring is 850-1200r/min, and churning time is 5-10min.
5. the coating process of Polyurethane crack lacquer described in a claim 1 or 2, it is characterized in that, comprise the steps: material process → spraying polyurethane seal coat → use after dry 12h 240# sand papering sanding → spraying polyurethane transparent priming → spray after dry 40-60min Polyurethane crack lacquer described in claim 1 or 2 → use 320# sand papering sanding → spraying polyurethane glossy varnish after dry 12h;
Described Polyurethane crack lacquer, when spraying, needs to coordinate thinner to use.
6. coating process according to claim 5, is characterized in that, the consumption of described thinner and Polyurethane crack lacquer is 0.8:3 by weight.
7. coating process according to claim 6, is characterized in that, described thinner is grouped into by the one-tenth of following weight percent:
Ethyl acetate 20-40%
N-butyl acetate 60-80%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310378543.2A CN103409059B (en) | 2013-08-27 | 2013-08-27 | A kind of Polyurethane crack lacquer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310378543.2A CN103409059B (en) | 2013-08-27 | 2013-08-27 | A kind of Polyurethane crack lacquer and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103409059A CN103409059A (en) | 2013-11-27 |
| CN103409059B true CN103409059B (en) | 2015-12-02 |
Family
ID=49602104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310378543.2A Active CN103409059B (en) | 2013-08-27 | 2013-08-27 | A kind of Polyurethane crack lacquer and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103409059B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104004446A (en) * | 2014-06-17 | 2014-08-27 | 展辰涂料集团股份有限公司 | Crack paint and use method thereof |
| CN104194596B (en) * | 2014-08-29 | 2016-06-29 | 苏州圣谱拉新材料科技有限公司 | A kind of Fructus Citri tangerinae stricture of vagina coating |
| CN107841236A (en) * | 2017-10-30 | 2018-03-27 | 芜湖辉灿电子科技有限公司 | A kind of radioresistance mobile phone surface lacquer |
| CN113025186A (en) * | 2019-12-09 | 2021-06-25 | 广东顺德三和化工有限公司 | Normal-temperature reactive dermatoglyph paint and preparation method thereof |
| CN113817397A (en) * | 2021-10-19 | 2021-12-21 | 成都君子兰涂料有限公司 | Polyurethane polishing-free musical instrument sealing primer and preparation method and construction method thereof |
| CN114015289A (en) * | 2021-12-09 | 2022-02-08 | 温州市品达科装饰材料有限公司 | Water-based crack paint, preparation method thereof and application method of crack paint |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102533086A (en) * | 2011-12-16 | 2012-07-04 | 展辰涂料集团股份有限公司 | Crack paint |
| CN102604519A (en) * | 2012-03-26 | 2012-07-25 | 四川嘉宝莉涂料有限公司 | Polyurethane (PU) crackle paint, and preparation method of corresponding primary paint |
| CN102850916A (en) * | 2012-08-31 | 2013-01-02 | 北京展辰化工有限公司 | Unsaturated polyester prime coat and preparation method thereof |
| CN102876222A (en) * | 2012-09-18 | 2013-01-16 | 北京展辰化工有限公司 | Two-component polyurethane primer for melamine board |
| CN102963207A (en) * | 2012-12-11 | 2013-03-13 | 上海富臣化工有限公司 | Application and construction method of novel moire effect in decoration |
-
2013
- 2013-08-27 CN CN201310378543.2A patent/CN103409059B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102533086A (en) * | 2011-12-16 | 2012-07-04 | 展辰涂料集团股份有限公司 | Crack paint |
| CN102604519A (en) * | 2012-03-26 | 2012-07-25 | 四川嘉宝莉涂料有限公司 | Polyurethane (PU) crackle paint, and preparation method of corresponding primary paint |
| CN102850916A (en) * | 2012-08-31 | 2013-01-02 | 北京展辰化工有限公司 | Unsaturated polyester prime coat and preparation method thereof |
| CN102876222A (en) * | 2012-09-18 | 2013-01-16 | 北京展辰化工有限公司 | Two-component polyurethane primer for melamine board |
| CN102963207A (en) * | 2012-12-11 | 2013-03-13 | 上海富臣化工有限公司 | Application and construction method of novel moire effect in decoration |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103409059A (en) | 2013-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103409059B (en) | A kind of Polyurethane crack lacquer and preparation method thereof | |
| CN102618126B (en) | Nitrocellulose transparent primer and application thereof | |
| CN105802477B (en) | A kind of environment-friendly water-based paint and preparation method thereof | |
| CN101591491B (en) | Full water-borne granite multicolor paint and preparation method thereof | |
| CN101456965B (en) | Method for preparing dry-type water-soluble colorful rock slices | |
| CN102533070B (en) | Luminant white paint and preparation method thereof | |
| CN103045055B (en) | High-hardness unsaturated polyester full-bright top-coat paint and preparation method thereof | |
| CN102558996B (en) | Metallic elastic paint | |
| CN102863889B (en) | Double-component polyurethane white high-gloss woodware paint, and preparation method and application thereof | |
| CN102051115A (en) | Ultraviolet light curing colored paint and preparation method thereof | |
| CN109722119A (en) | A kind of one-component water-based crack paint and preparation method thereof | |
| CN108997925A (en) | A kind of coloured dual cure UV coating of automotive upholstery | |
| CN107603448A (en) | Color inhibition handfeel paint and its preparation, application method and application | |
| CN105153847A (en) | Water-based glass high-temperature baking varnish and preparation method thereof | |
| CN103305113B (en) | The special clear priming paint of a kind of anti-sag PU and manufacture method thereof | |
| CN102746768A (en) | Water-borne colorful glass paint and preparation method and application thereof | |
| CN101967345A (en) | Novel polyurethane transparent priming paint for protecting woodware | |
| CN104479515A (en) | Environment-friendly polyester coating for aluminum-plastic composite panel and preparation method of coating | |
| CN115286986B (en) | Skin-feel matte varnish for woodware, and preparation method and application thereof | |
| CN102250539A (en) | A two-component low-VOC oil-based polyurethane topcoat | |
| CN108822285A (en) | The low thinning of the low hydroxyl of high-solid lower-viscosity is than alkyd resin and its preparation method and application | |
| CN107245288B (en) | High-alkali-resistance strong-adhesion water-based metal matte baking paint and preparation and use methods thereof | |
| CN102876222B (en) | A kind of Two-component polyurethane primer of melamine plate | |
| CN107573824A (en) | A kind of dual cure woodenware glossy varnish and preparation method thereof | |
| CN109293872A (en) | A kind of polyurethane special type curing agent of anti-scratching wearproof and its preparation method and application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| CB02 | Change of applicant information |
Address after: 101105 Beijing Tongzhou District Yongle Economic Development Zone Applicant after: Beijing Zhan Chen novel material company limited Address before: 101105 Beijing Tongzhou District Yongle Economic Development Zone Applicant before: Beijing Zhanchen Chemical Industry Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200102 Address after: 457000 intersection of Dingsheng road and Tianrong street, Puyang Industrial Park, Puyang City, Henan Province Patentee after: Puyang zhanchen New Material Co., Ltd Address before: 101105 Yongle Economic Development Zone, Beijing, Tongzhou District Patentee before: Beijing Zhan Chen novel material company limited |