CN101838498A - Thermosetting metallic paint and preparation method and application thereof - Google Patents
Thermosetting metallic paint and preparation method and application thereof Download PDFInfo
- Publication number
- CN101838498A CN101838498A CN200910047616A CN200910047616A CN101838498A CN 101838498 A CN101838498 A CN 101838498A CN 200910047616 A CN200910047616 A CN 200910047616A CN 200910047616 A CN200910047616 A CN 200910047616A CN 101838498 A CN101838498 A CN 101838498A
- Authority
- CN
- China
- Prior art keywords
- metallic paint
- weight
- thermosetting metallic
- thermosetting
- solvent
- 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.)
- Pending
Links
Landscapes
- Paints Or Removers (AREA)
Abstract
The invention relates to the coating field, in particular to a thermosetting metallic paint with improved solvent resistance, a preparation method and an application thereof. The thermosetting metallic paint comprises the following components: a hydroxyl compound, a cross-linking agent, aluminum powder and a silane coupling agent, wherein, the dosage of silane coupling agent is 0.2-3.4wt% based on 100wt% of the weight of the thermosetting metallic paint. In the invention, an appropriate amount of the silane coupling agent is added, and the proportion of other components in the thermosetting metallic paint is adjusted, thus obviously improving the solvent resistance of the thermosetting metallic paint.
Description
Technical field
The present invention relates to paint field, particularly a kind of thermosetting metallic paint, its preparation method and application thereof with solvent resistance of improvement.
Background technology
Thermosetting metallic paint is a kind of paint with high tenacity, high rigidity, high-wearing feature, and it has tempting outward appearance, is normally used in the application system of coiled material, packing, general industry.
The solvent resistance of traditional thermosetting metallic paint is relatively poor.The solvent resistance of thermosetting metallic paint is according to the method test that 6.11.2 narrated among the CNS GB/T 17748-1999.Usually, the solvent resistance of representing this thermosetting metallic paint by anti-MEK (methyl ethyl ketone) the wiping number of times of testing a kind of thermosetting metallic paint.
At present, industry member does not still have the method for the solvent resistance of a kind of effective raising thermosetting metallic paint (especially thermoset aluminium powder paint).Coating industry generally all lowers the requirement when facing the solvent resistance problem of thermosetting metallic paint, and the number of times of only requiring anti-MEK wiping reaches 60 times and gets final product.
Therefore, provide a kind of thermosetting metallic paint, more and more become craving for of industry with solvent resistance of improvement.
Summary of the invention
One of purpose of the present invention is to provide a kind of thermosetting metallic paint.According to one embodiment of present invention, described thermosetting metallic paint comprises following ingredients: A) oxy-compound, B) linking agent, C) aluminium powder, D) silane coupling agent, wherein, D) dosage of silane coupling agent is 0.2-3.4wt.%, in the weight of thermosetting metallic paint by 100wt.%.
Described composition may further include: E) catalyzer.
Described composition may further include: F) additive, described additive are selected from following one or more: defoamer, flow agent, wetting dispersing agent.
Described thermosetting metallic paint, the consumption of each composition is:
A) oxy-compound of 13-36wt.%, in the weight of thermosetting metallic paint by 100wt.%;
B) linking agent of 12.8-29.7wt.%, in the weight of thermosetting metallic paint by 100wt.%;
C) aluminium powder of 1.14-11.4wt.%, in the weight of thermosetting metallic paint by 100wt.%; With
D) silane coupling agent of 0.2-3.4wt.%, in the weight of thermosetting metallic paint by 100wt.%.
Described thermosetting metallic paint, E) catalyst consumption is 0.1-1.0wt.%, in the weight of thermosetting metallic paint by 100wt.%.
Described thermosetting metallic paint, F) consumption of additive is 0.5-1.0wt.%, in the weight of thermosetting metallic paint by 100wt.%.
In described oxy-compound, linking agent, aluminium powder or the catalyzer one or more can be respectively add with the form of oxy-compound solution, cross-linking agent solution, aluminum paste or catalyst solution;
The solvent of described oxy-compound solution, cross-linking agent solution, aluminum paste, catalyst solution is selected from following one or more: aromatic hydrocarbon solvent, pure ether solvent, esters solvent;
The consumption of described oxy-compound solution is 20-55wt.%, in the weight of thermosetting metallic paint by 100wt.%;
The consumption of described cross-linking agent solution is 17-39.5wt.%, in the weight of thermosetting metallic paint by 100wt.%;
The consumption of described aluminum paste is 4-40wt.%, in the weight of thermosetting metallic paint by 100wt.%;
The consumption of described catalyst solution is 1.0-10wt.%, in the weight of thermosetting metallic paint by 100wt.%.
Two of purpose of the present invention is to provide a kind of method for preparing described thermosetting metallic paint.According to one embodiment of present invention, described method comprises step: following ingredients is mixed: A) oxy-compound, B) linking agent, C) aluminium powder, D) silane coupling agent, wherein, D) dosage of silane coupling agent is 0.2-3.4wt.%, in the weight of thermosetting metallic paint by 100wt.%.
Described composition may further include: E) catalyzer.
Described composition may further include: F) additive, described additive are selected from following one or more: defoamer, flow agent, wetting dispersing agent.
Described method, the consumption of each composition is:
A) oxy-compound of 13-36wt.%, in the weight of thermosetting metallic paint by 100wt.%;
B) linking agent of 12.8-29.7wt.%, in the weight of thermosetting metallic paint by 100wt.%;
C) aluminium powder of 1.14-11.4wt.%, in the weight of thermosetting metallic paint by 100wt.%; With
D) silane coupling agent of 0.2-3.4wt.%, in the weight of thermosetting metallic paint by 100wt.%.
Described composition, E) catalyst consumption is 0.1-1.0wt.%, in the weight of thermosetting metallic paint by 100wt.%.
Described composition, F) consumption of additive is 0.5-1.0wt.%, in the weight of thermosetting metallic paint by 100wt.%.
In described oxy-compound, linking agent, aluminium powder or the catalyzer one or more can be respectively add with the form of oxy-compound solution, cross-linking agent solution, aluminum paste or catalyst solution;
The solvent of described oxy-compound solution, cross-linking agent solution, aluminum paste, catalyst solution is selected from following one or more: aromatic hydrocarbon solvent, pure ether solvent, esters solvent;
The consumption of described oxy-compound solution is 20-55wt.%, in the weight of thermosetting metallic paint by 100wt.%;
The consumption of described cross-linking agent solution is 17-39.5wt.%, in the weight of thermosetting metallic paint by 100wt.%;
The consumption of described aluminum paste is 4-40wt.%, in the weight of thermosetting metallic paint by 100wt.%;
The consumption of described catalyst solution is 1.0-10wt.%, in the weight of thermosetting metallic paint by 100wt.%.
Three of purpose of the present invention is to provide a kind of method of using described thermosetting metallic paint.According to one embodiment of present invention, described method comprises step: described thermosetting metallic paint is coated on the ground, and reacting by heating, the temperature of reaction of described reaction are 200-260 ℃.
The reaction times of described reaction is 20-200 second.
In described reaction process, before the described thermosetting metallic paint of coating, first coating one deck priming paint on described ground, described priming paint, preferred but be not limited to polyester-polyurethane priming paint, acrylic acid-polyurethane priming paint, epoxy-amino resin base coat.
Four of purpose of the present invention is to provide the application of a kind of described thermosetting metallic paint in coating.
Beneficial effect of the present invention is: among the present invention, by adding an amount of silane coupling agent and adjusting the proportioning of other compositions in the thermosetting metallic paint, make the solvent resistance of thermosetting metallic paint obtain significant raising.
Embodiment
Specific embodiment disclosed in this invention and method, its description is exemplary and nonrestrictive.
The present invention provides a kind of thermosetting metallic paint with solvent resistance of improvement by adding an amount of silane coupling agent and adjusting the proportioning of each reacted constituent of thermosetting metallic paint.
Described thermosetting metallic paint comprises composition A, B, C, D.
Thermosetting metallic paint of the present invention, the consumption of described composition A, B, C can with preparation in the prior art during thermosetting metallic paint consumption commonly used of these compositions identical or close.
Thermosetting metallic paint of the present invention, the consumption of preferred these compositions provided by the present invention of the consumption of described composition A, B, C, D.Composition A, the B of these consumptions provided by the present invention, the synergistic effect of C, D will further be improved the solvent resistance of described thermosetting metallic paint.
Described composition may further include composition E.
Described composition can further comprise composition F again.
Composition A
Described oxy-compound, preferred but be not limited to polyester, polyacrylic ester or their derivative.
The number-average molecular weight of described polyester, preferred but be not limited to 2000-6000; The hydroxy radical content of described polyester, preferred but be not limited to 2-6wt.%, preferred especially 5-6wt.%, 5.5wt.% most preferably, in the weight of polyester by 100wt.%; Described polyester, preferred but be not limited to the hydroxyl saturated polyester resin, especially preferably toast coil coating hydroxyl saturated polyester resin, most preferably by the baking coil coating hydroxyl saturated polyester of the initial preparation of aliphatic polyol.
The number-average molecular weight of described polyacrylic ester, preferred but be not limited to 10000-20000; The hydroxy radical content of described polyacrylic ester, preferred but be not limited to 1-3wt.%, preferred especially 1-2wt.%, in the weight of polyacrylic ester by 100wt.%; Described polyacrylic ester, preferred but be not limited to the hydroxyl polyacrylic ester, especially preferably toast coil coating hydroxyl polyacrylic ester, most preferably toast coil coating usefulness fluorine carbon-hydroxyl polyacrylate resin.
The consumption of described oxy-compound, preferred but be not limited to 13-36wt.%, in the weight of thermosetting metallic paint by 100wt.%.
Described oxy-compound can add with the form of oxy-compound solution.
The solvent of described oxy-compound solution, preferred but be not limited to aromatic hydrocarbon solvent, pure ether solvent, esters solvent.Described aromatic hydrocarbon solvent, preferred but be not limited to dimethylbenzene, toluene, benzene; Described pure ether solvent, preferred but be not limited to propylene glycol methyl ether acetate, ethylene glycol monomethyl ether acetate, dipropylene glycol methyl ether acetic ester; Described esters solvent, preferred but be not limited to butylacetate, ethyl acetate.
When described oxy-compound adds fashionable with the form of oxy-compound solution, the consumption of described oxy-compound solution, preferred but be not limited to 20-55wt.%, the consumption of oxy-compound in the described oxy-compound solution, preferred but be not limited to 13-36wt.%, in the weight of thermosetting metallic paint by 100wt.%.
Composition B
Described linking agent, preferred but be not limited to blocked isocyanate; The isocyanate content of described blocked isocyanate, preferred but be not limited to 8-12wt.%, preferred especially 11-12wt.%, in the weight of blocked isocyanate by 100wt.%; Described blocked isocyanate, preferred but be not limited to initial blocked isocyanate with HDI (hexamethylene diisocyanate).
The consumption of described linking agent, preferred but be not limited to 12.8-29.7wt.%, in the weight of thermosetting metallic paint by 100wt.%.
Described linking agent can add with the form of cross-linking agent solution.
The solvent of described cross-linking agent solution, preferred but be not limited to aromatic hydrocarbon solvent, pure ether solvent, esters solvent.Described aromatic hydrocarbon solvent, preferred but be not limited to dimethylbenzene, toluene, benzene; Described pure ether solvent, preferred but be not limited to propylene glycol methyl ether acetate, ethylene glycol monomethyl ether acetate, dipropylene glycol methyl ether acetic ester; Described esters solvent, preferred but be not limited to butylacetate, ethyl acetate.
When described linking agent adds fashionable with the form of cross-linking agent solution, the consumption of described cross-linking agent solution, preferred but be not limited to 17-39.5wt.%, the consumption of linking agent in the described cross-linking agent solution, preferred but be not limited to 12.8-29.7wt.%, in the weight of thermosetting metallic paint by 100wt.%.
Composition C
Described aluminium powder, its particle diameter (D50 diameter, the i.e. particle diameter that particle reached more than 50%), preferred but be not limited to the 5-40 micron, preferred especially 5-21 micron, most preferably 16 microns.
The consumption of described aluminium powder, preferred but be not limited to 1.14-11.4wt.%, in the weight of thermosetting metallic paint by 100wt.%.
Described aluminium powder can add with the form of aluminum paste.
The solvent of described aluminum paste, preferred but be not limited to aromatic hydrocarbon solvent, pure ether solvent, esters solvent.Described aromatic hydrocarbon solvent, preferred but be not limited to dimethylbenzene, toluene, benzene; Described pure ether solvent, preferred but be not limited to propylene glycol methyl ether acetate, ethylene glycol monomethyl ether acetate, dipropylene glycol methyl ether acetic ester; Described esters solvent, preferred but be not limited to butylacetate, ethyl acetate.
When described aluminium powder add with the form of aluminum paste fashionable, the consumption of described aluminum paste, preferred but be not limited to 4-40wt.%, the consumption of aluminium powder in the described aluminum paste, preferred but be not limited to 1.14-11.4wt.%, in the weight of thermosetting metallic paint by 100wt.%.
Components D
Described silane coupling agent, preferred but be not limited to amino silicane coupling agent, epoxy silane coupling, sulfenyl silane coupling agent, preferred especially amino silicane coupling agent.Described amino silicane coupling agent, preferred but be not limited to γ-An Jibingjisanyiyangjiguiwan, gamma-amino propyl trimethoxy silicane, two γ-trimethoxy silica-based-propyl group ammonia, preferred especially γ-An Jibingjisanyiyangjiguiwan, gamma-amino propyl trimethoxy silicane, most preferably γ-An Jibingjisanyiyangjiguiwan.Described epoxy silane coupling, preferred but be not limited to β-cyclohexyl oxygen and support basic Trimethoxy silane.Described sulfenyl silane coupling agent, preferred but be not limited to γ-sulfenyl propyl trimethoxy silicane.
The consumption of described amino silicane coupling agent, preferred but be not limited to 0.2-3.4, in the weight of thermosetting metallic paint by 100wt.%.
Composition E
Described catalyzer, preferred but be not limited to tin class catalyzer.Described tin class catalyzer, preferred but be not limited to dibutyl tin laurate, stannous octoate, naphthenic acid tin, preferred especially dibutyl tin laurate, stannous octoate, most preferably dibutyl tin laurate.
Described catalyst consumption, preferred but be not limited to 0.1-1.0wt.%, preferred especially 0.4-0.45wt.%, in the weight of thermosetting metallic paint by 100wt.%.
Described catalyzer can add with the form of catalyst solution.
The solvent of described catalyst solution, preferred but be not limited to aromatic hydrocarbon solvent, pure ether solvent, esters solvent.Described aromatic hydrocarbon solvent, preferred but be not limited to dimethylbenzene, toluene, benzene; Described pure ether solvent, preferred but be not limited to propylene glycol methyl ether acetate, ethylene glycol monomethyl ether acetate, dipropylene glycol methyl ether acetic ester; Described esters solvent, preferred but be not limited to butylacetate, ethyl acetate.
When described catalyzer adds fashionable with the form of catalyst solution, the consumption of described catalyst solution is 1.0-10wt.%, preferred 4.0-4.5wt.%, catalyst consumption is for being 0.1-1.0wt.% in the described catalyst solution, preferred 0.4-0.45wt.%, in the weight of thermosetting metallic paint by 100wt.%.
Composition F
Described additive, preferred but be not limited to defoamer, flow agent, wetting dispersing agent.Described defoamer, preferred but be not limited to non-silicon base polymer defoamer; Described non-silicon base polymer defoamer, preferred but be not limited to polyacrylic acid or its solution, fluorine-carbon modified polyacrylic compounds or its solution, polydimethylsiloxane compound or its solution, polyacrylic acid ester cpds or its solution.Described flow agent, preferred but be not limited to polyacrylic acid or fluorine-carbon modified acrylic compound or its solution, modified dimethyl polysiloxane compound or its solution, ether of cellulose compounds and solution thereof.Described wetting dispersing agent, preferred but be not limited to urethanes or its solution, polyacrylic acid ester cpds or its solution.
The consumption of described additive is 0.5-1.0wt.%, in the weight of thermosetting metallic paint by 100wt.%.
The method for preparing thermosetting metallic paint
Described composition A, B, C, D are mixed, obtain described thermosetting metallic paint.
Described composition may further include composition E.
Described composition may further include composition F.
Use the method for thermosetting metallic paint
Described thermosetting metallic paint is coated on the ground reacting by heating.The temperature of reaction of described reacting by heating is 200-260 ℃.After reaction was finished, described thermosetting metallic paint formed one deck dry film at substrate surface, and the thickness of described dry film is preferred but be not limited to the 20-30 micron, preferred especially 20-28 micron.
The reaction pressure of described reacting by heating, preferred but be not limited to normal pressure (an about normal atmosphere).
The reaction times of described reacting by heating is 20-200 second, preferred 30-80 second, most preferably 75 seconds.
Described ground, preferred but be not limited to metal base, preferred especially aluminium, steel, stainless steel, most preferably aluminium.
Before with described thermosetting metallic paint coated substrates, can do pre-treatment to ground earlier, for example, the processing that can make cleaning, remove oxide on surface ground earlier, then, use Alodine 4595 (the Henkel company provides) aqueous solution of 1wt.% that ground is done pre-treatment, pretreatment time is 2.5-4 minute, and pretreatment temperature is room temperature (about 25 ℃).After pre-treatment is finished, rinse described ground, dry stand-by with clear water.
After ground is done pre-treatment, the coating described thermosetting metallic paint before, can also on ground, be coated with one deck priming paint earlier, described priming paint, preferred but be not limited to polyester-polyurethane priming paint, acrylic acid-polyurethane priming paint, epoxy-amino resin base coat, special preferred polyester-polyurethane primer.
For example, can use line rod coated polyester-polyurethane primer on pretreated ground, heated baking in high temperature oven forms one deck dry film; The thickness of described dry film, preferred but be not limited to the 5-15 micron, preferred especially 8-10 micron, described heated baking temperature, preferred but be not limited to 200-260 ℃, preferred 224-232 ℃ especially; The described heated baking time, preferred but be not limited to 20-200 second preferred especially 75 seconds.
Thermosetting metallic paint of the present invention can be used as coating to be used, and has good solvent resistance.
Employed reagent in detection method used in the present invention and the detection:
The detection method of solvent resistance: 6.11.2 part (being the solvent resistance part in the chemical resistant properties) among the CNS GB/T 17748-1999;
Employed reagent: MEK (methyl ethyl ketone) in the detection;
Solvent grade: analytical pure (ETHYLMETHYLKETONE, CAS No.:76-93-3).
The raw material of mentioning in the context is described as follows:
Zeffle GK-570: polyacrylic ester, hydroxy radical content 1.82wt.%, solid content 65wt.% can be buied by Daikin Co., Ltd..
Demophen 651: polyester, and hydroxy radical content 5.5wt.%, solids content 65-67wt.% can be buied by Beyer Co., Ltd.
Desmodur BL 3175: blocked isocyanate, NCO content 11.1wt.%, solids content 75wt.% can be buied by Beyer Co., Ltd.
Stapa Metallux 770CC: aluminium powder, 16 microns of D50 particle diameters, density 1.5Kg/L can be buied by Eckart company.
DBTDL: dibutyl tin laurate, relative molecular weight 631, tin content 18.5+/-5wt.%, can buy by aerochemistry company.
Silquest A1100: silane coupling agent (γ-An Jibingjisanyiyangjiguiwan), can buy by GE company.
MPA: solvent (propylene glycol methyl ether acetate), can buy by Dow company.
Alodine 4595 aqueous solution: the Chrome-free pretreatment fluid, be used to handle aluminium and alloy pre-treatment thereof, can buy by Henkel company.
Embodiment
Comparative example C1
41.03g Zeffle GK-570 and 6.47g MPA are added agitator, stirred 15 minutes with the rotating speed of 500-800rpm;
The aluminum paste that 27.67g is contained Stapa Metallux 770CC adds agitator, stirs 30 minutes with the rotating speed of 400-500rpm;
17.79g Desmodur BL 3175 is added agitators, stirred 10 minutes with the rotating speed of 400-500rpm;
The MPA solution of the DBTDL of 4.16g 10wt.% is added agitator, stirred 20 minutes, detect fineness, obtain thermosetting metallic paint to 6H (Hegman) with the rotating speed of 400-500rpm.
On the aluminium that scribbles polyester-polyurethane priming paint, with the described thermosetting metallic paint of line rod coating, baking is 75 seconds in high temperature oven, and temperature is 224-232 ℃, forms one deck dry film, described dried film thickness 20-28 micron.
Detect the solvent resistance of described thermoset finish paint, gained the results are shown in table 1.
Embodiment 1
40.54g Zeffle GK-570 and 6.39g MPA are added agitator, stirred 15 minutes with the rotating speed of 500-800rpm;
The aluminum paste that 27.35g is contained Stapa Metallux 770CC adds agitator, stirs 30 minutes with the rotating speed of 400-500rpm;
17.58g Desmodur BL 3175 is added agitators, stirred 10 minutes with the rotating speed of 400-500rpm;
MPA solution and the 1.19g Silquest A1100 of the DBTDL of 4.14g 10wt.% are added agitator, stirred 20 minutes, detect fineness, obtain thermosetting metallic paint to 6H (Hegman) with the rotating speed of 400-500rpm.
On the aluminium that scribbles polyester-polyurethane priming paint, with the described thermosetting metallic paint of line rod coating, baking is 75 seconds in high temperature oven, and temperature is 224-232 ℃, forms one deck dry film, described dried film thickness 20-28 micron.
Detect the solvent resistance of described thermoset finish paint, gained the results are shown in table 1.
Table 1: embodiment 1 and comparative example C1
As can be seen from Table 1, the adding of an amount of silane coupling agent can significantly improve the solvent resistance of thermoset polyacrylic ester-polyurethane metal lacquer.
Comparative example C2
27.17g Desmophen 651 and 2.72g MPA are added agitator, stirred 15 minutes with the rotating speed of 500-800rpm;
The aluminum paste that 29.89g is contained Stapa Metallux 770CC adds agitator, stirs 30 minutes with the rotating speed of 400-500rpm;
33.15g Desmodur BL 3175 is added agitators, stirred 10 minutes with the rotating speed of 400-500rpm;
The MPA solution of the DBTDL of 4.36g 10wt.% is added agitator, stirred 20 minutes, detect fineness, obtain thermosetting metallic paint to 6H (Hegman) with the rotating speed of 400-500rpm.
On the aluminium that scribbles polyester-polyurethane priming paint, with the described thermosetting metallic paint of line rod coating, baking is 75 seconds in high temperature oven, and temperature is 224-232 ℃, forms one deck dry film, described dried film thickness 20-28 micron.
Detect the solvent resistance of described thermoset finish paint, gained the results are shown in table 2.
Embodiment 2
26.99g Desmophen 651 and 2.7g MPA are added agitator, stirred 15 minutes with the rotating speed of 500-800rpm;
The aluminum paste that 29.69g is contained Stapa Metallux 770CC adds agitator, stirs 30 minutes with the rotating speed of 400-500rpm;
32.93g Desmodur BL 3175 is added agitators, stirred 10 minutes with the rotating speed of 400-500rpm;
MPA solution and the 0.65g Silquest A1100 of the DBTDL of 4.33g 10wt.% are added agitator, stirred 20 minutes, detect fineness, obtain thermosetting metallic paint to 6H (Hegman) with the rotating speed of 400-500rpm.
On the aluminium that scribbles polyester-polyurethane priming paint, with the described thermosetting metallic paint of line rod coating, baking is 75 seconds in high temperature oven, and temperature is 224-232 ℃, forms one deck dry film, described dried film thickness 20-28 micron.
Detect the solvent resistance of described thermoset finish paint, gained the results are shown in table 2.
Embodiment 3
26.94g Desmophen 651 and 2.69g MPA are added agitator, stirred 15 minutes with the rotating speed of 500-800rpm;
The aluminum paste that 29.63g is contained Stapa Metallux 770CC adds agitator, stirs 30 minutes with the rotating speed of 400-500rpm;
32.86g Desmodur BL 3175 is added agitators, stirred 10 minutes with the rotating speed of 400-500rpm;
MPA solution and the 0.86g Silquest A1100 of the DBTDL of 4.32g 10wt.% are added agitator, stirred 20 minutes, detect fineness, obtain thermosetting metallic paint to 6H (Hegman) with the rotating speed of 400-500rpm.
On the aluminium that scribbles polyester-polyurethane priming paint, with the described thermosetting metallic paint of line rod coating, baking is 75 seconds in high temperature oven, and temperature is 224-232 ℃, forms one deck dry film, described dried film thickness 20-28 micron.
Detect the solvent resistance of described thermoset finish paint, gained the results are shown in table 2.
Embodiment 4
26.85g Desmophen 651 and 2.69g MPA are added agitator, stirred 15 minutes with the rotating speed of 500-800rpm;
The aluminum paste that 29.53g is contained Stapa Metallux 770CC adds agitator, stirs 30 minutes with the rotating speed of 400-500rpm;
32.75g Desmodur BL 3175 is added agitators, stirred 10 minutes with the rotating speed of 400-500rpm;
MPA solution and the 1.2g Silquest A1100 of the DBTDL of 4.31g 10wt.% are added agitator, stirred 20 minutes, detect fineness, obtain thermoset metal finish paint to 6H (Hegman) with the rotating speed of 400-500rpm.
On the aluminium that scribbles polyester-polyurethane priming paint, with the described thermoset metal finish paint of line rod coating, baking is 75 seconds in high temperature oven, and temperature is 224-232 ℃, forms one deck dry film, described dried film thickness 20-28 micron.
Detect the solvent resistance of described thermoset finish paint, gained the results are shown in table 2.
Table 2: embodiment 2,3,4 and comparative example C2
As can be seen from Table 2, the adding of an amount of silane coupling agent can significantly improve the solvent resistance of thermosetting polyester-polyurethane metal lacquer.
In sum, no matter in polyacrylic ester-polyurethane metal lacquer, or in the polyester-polyurethane metallic paint, the adding of an amount of silane coupling agent can improve the solvent resistance of thermosetting metallic paint greatly.
Though the present invention discloses preferred embodiment as above; right its is not in order to limiting the present invention, anyly has the knack of this skill person, without departing from the spirit and scope of the present invention; when doing various changes and retouching, therefore the protection domain of invention should be as the criterion with the claim scope of applying for a patent.
Claims (27)
1. thermosetting metallic paint, described thermosetting metallic paint comprises following ingredients: A) oxy-compound, B) linking agent, C) aluminium powder, D) silane coupling agent, wherein, D) dosage of silane coupling agent is 0.2-3.4wt.%, in the weight of thermosetting metallic paint by 100wt.%.
2. thermosetting metallic paint as claimed in claim 1 is characterized in that, the consumption of described composition is:
A) oxy-compound of 13-36wt.%, in the weight of thermosetting metallic paint by 100wt.%;
B) linking agent of 12.8-29.7wt.%, in the weight of thermosetting metallic paint by 100wt.%;
C) aluminium powder of 1.14-11.4wt.%, in the weight of thermosetting metallic paint by 100wt.%; With
D) silane coupling agent of 0.2-3.4wt.%, in the weight of thermosetting metallic paint by 100wt.%.
3. thermosetting metallic paint as claimed in claim 2 is characterized in that, described composition can further include:
E) catalyzer of 0.1-1.0wt.%, in the weight of thermosetting metallic paint by 100wt.%.
4. thermosetting metallic paint as claimed in claim 2 is characterized in that, one or more in described oxy-compound, linking agent or the aluminium powder can be respectively add with the form of oxy-compound solution, cross-linking agent solution or aluminum paste;
The solvent of described oxy-compound solution, cross-linking agent solution, aluminum paste is selected from following one or more: aromatic hydrocarbon solvent, pure ether solvent, esters solvent;
The consumption of described oxy-compound solution is 20-55wt.%, in the weight of thermosetting metallic paint by 100wt.%;
The consumption of described cross-linking agent solution is 17-39.5wt.%, in the weight of thermosetting metallic paint by 100wt.%;
The consumption of described aluminum paste is 4-40wt.%, in the weight of thermosetting metallic paint by 100wt.%.
5. thermosetting metallic paint as claimed in claim 3 is characterized in that, described catalyzer can add with the form of catalyst solution, and the solvent of described catalyst solution is selected from following one or more: aromatic hydrocarbon solvent, pure ether solvent, esters solvent;
The consumption of described catalyst solution is 1.0-10wt.%, in the weight of thermosetting metallic paint by 100wt.%.
6. as claim 4 or 5 described thermosetting metallic paints, it is characterized in that, described aromatic hydrocarbon solvent is selected from following one or more: dimethylbenzene, toluene, benzene, described pure ether solvent is selected from following one or more: propylene glycol methyl ether acetate, ethylene glycol monomethyl ether acetate, dipropylene glycol methyl ether acetic ester, described esters solvent is selected from: butylacetate, ethyl acetate.
7. as claim 1,2,3,4 or 5 described thermosetting metallic paints, it is characterized in that described composition can further include:
F) additive of 0.5-1.0wt.%, in the weight of thermosetting metallic paint by 100wt.%; Described additive is selected from following one or more: defoamer, flow agent, wetting dispersing agent.
8. as claim 1,2,3,4 or 5 described thermosetting metallic paints, it is characterized in that described oxy-compound comprises polyester and/or polyacrylic ester; The number-average molecular weight of described polyester is 2000-6000, and hydroxy radical content is 2-6wt.%, in the weight of described polyester by 100wt.%; The number-average molecular weight of described polyacrylic ester is 10000-20000, and hydroxy radical content is 1-3wt.%, in the weight of described polyacrylic ester by 100wt.%.
9. as claim 1,2,3,4 or 5 described thermosetting metallic paints, it is characterized in that, described linking agent is a blocked isocyanate, and the isocyanate content of described blocked isocyanate is 8-12wt.%, in the weight of described blocked isocyanate by 100wt.%.
10. as claim 1,2,3,4 or 5 described thermosetting metallic paints, it is characterized in that described silane coupling agent is selected from following one or more: amino silicane coupling agent, epoxy silane coupling agent, sulfenyl silane coupling agent.
11. thermosetting metallic paint as claimed in claim 10, it is characterized in that described silane coupling agent is selected from following one or more: γ-An Jibingjisanyiyangjiguiwan, gamma-amino propyl trimethoxy silicane, two γ-trimethoxy be silica-based-and propyl group ammonia, β-cyclohexyl oxygen supports basic Trimethoxy silane, γ-sulfenyl propyl trimethoxy silicane.
12. a method for preparing thermosetting metallic paint comprises step: following ingredients is mixed
A) oxy-compound, B) linking agent, C) aluminium powder, D) silane coupling agent, wherein, D) dosage of silane coupling agent is 0.2-3.4wt.%, in the weight of thermosetting metallic paint by 100wt.%.
13. method as claimed in claim 12 is characterized in that, the consumption of described composition is:
A) oxy-compound of 13-36wt.%, in the weight of thermosetting metallic paint by 100wt.%;
B) linking agent of 12.8-29.7wt.%, in the weight of thermosetting metallic paint by 100wt.%;
C) aluminium powder of 1.14-11.4wt.%, in the weight of thermosetting metallic paint by 100wt.%; With
D) silane coupling agent of 0.2-3.4wt.%, in the weight of thermosetting metallic paint by 100wt.%.
14. method as claimed in claim 13 is characterized in that, described composition may further include:
E) catalyzer of 0.1-1.0wt.%, in the weight of thermosetting metallic paint by 100wt.%.
15. method as claimed in claim 13 is characterized in that, one or more in described oxy-compound, linking agent or the aluminium powder can be respectively add with the form of oxy-compound solution, cross-linking agent solution or aluminum paste;
The solvent of described oxy-compound solution, cross-linking agent solution, aluminum paste is selected from following one or more: aromatic hydrocarbon solvent, pure ether solvent, esters solvent;
The consumption of described oxy-compound solution is 20-55wt.%, in the weight of thermosetting metallic paint by 100wt.%;
The consumption of described cross-linking agent solution is 17-39.5wt.%, in the weight of thermosetting metallic paint by 100wt.%;
The consumption of described aluminum paste is 4-40wt.%, in the weight of thermosetting metallic paint by 100wt.%.
16. method as claimed in claim 14 is characterized in that, described catalyzer can add with the form of catalyst solution, and the solvent of described catalyst solution is selected from following one or more: aromatic hydrocarbon solvent, pure ether solvent, esters solvent;
The consumption of described catalyst solution is 1.0-10wt.%, in the weight of thermosetting metallic paint by 100wt.%.
17. as claim 15 or 16 described methods, it is characterized in that, described aromatic hydrocarbon solvent is selected from following one or more: dimethylbenzene, toluene, benzene, described pure ether solvent is selected from following one or more: propylene glycol methyl ether acetate, ethylene glycol monomethyl ether acetate, dipropylene glycol methyl ether acetic ester, described esters solvent is selected from: butylacetate, ethyl acetate.
18., it is characterized in that described composition may further include as claim 12,13,14,15 or 16 described methods:
F) additive of 0.5-1.0wt.%, in the weight of composition A, B, C, D by 100wt.%; Described additive is selected from following one or more: defoamer, flow agent, wetting dispersing agent.
19., it is characterized in that described oxy-compound comprises polyester and/or polyacrylic ester as claim 12,13,14,15 or 16 described methods; The number-average molecular weight of described polyester is 2000-6000, and hydroxy radical content is 2-6wt.%, in the weight of described polyester by 100wt.%; The number-average molecular weight of described polyacrylic ester is 10000-20000, and hydroxy radical content is 1-3wt.%, in the weight of described polyacrylic ester by 100wt.%.
20., it is characterized in that described linking agent is a blocked isocyanate as claim 12,13,14,15 or 16 described methods, the isocyanate content of described blocked isocyanate is 8-12wt.%, in the weight of described blocked isocyanate by 100wt.%.
21., it is characterized in that described silane coupling agent is selected from following one or more: amino silicane coupling agent, epoxy silane coupling agent, sulfenyl silane coupling agent as claim 12,13,14,15 or 16 described methods.
22. method as claimed in claim 21, it is characterized in that described silane coupling agent is selected from following one or more: γ-An Jibingjisanyiyangjiguiwan, gamma-amino propyl trimethoxy silicane, two γ-trimethoxy be silica-based-and propyl group ammonia, β-cyclohexyl oxygen supports basic Trimethoxy silane, γ-sulfenyl propyl trimethoxy silicane.
23. the method for use such as claim 1,2,3,4 or 5 described thermosetting metallic paints, comprise step: described thermosetting metallic paint is coated on the ground, and reacting by heating, the temperature of reaction of described reaction are 200-260 ℃.
24. method as claimed in claim 23 is characterized in that, before the described thermosetting metallic paint of coating, can also on described ground, be coated with one deck priming paint earlier, described priming paint, preferred but be not limited to polyester-polyurethane priming paint, acrylic acid-polyurethane priming paint, epoxy-amino resin base coat.
25. method as claimed in claim 23 is characterized in that, the reaction times of described reaction is 20-200 second.
26. method as claimed in claim 23 is characterized in that, described ground is aluminium sheet, steel plate.
27. as claim 1,2,3,4 or 5 application of described thermosetting metallic paint in coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910047616A CN101838498A (en) | 2009-03-16 | 2009-03-16 | Thermosetting metallic paint and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910047616A CN101838498A (en) | 2009-03-16 | 2009-03-16 | Thermosetting metallic paint and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101838498A true CN101838498A (en) | 2010-09-22 |
Family
ID=42742181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910047616A Pending CN101838498A (en) | 2009-03-16 | 2009-03-16 | Thermosetting metallic paint and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101838498A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104098970A (en) * | 2014-07-29 | 2014-10-15 | 广西梧州龙鱼漆业有限公司 | Metallic paint and preparation method thereof |
| CN108350312A (en) * | 2015-09-25 | 2018-07-31 | 阿克佐诺贝尔国际涂料股份有限公司 | Thermoset composition, coating process and the method for producing japanning product |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1398934A (en) * | 2001-07-24 | 2003-02-26 | 大丰涂料株式会社 | Paint composition for metal product |
| CN101117479A (en) * | 2006-07-31 | 2008-02-06 | 本田技研工业株式会社 | Water-borne primer coating composition and method of forming coating film |
| CN101362132A (en) * | 2007-08-09 | 2009-02-11 | 本田技研工业株式会社 | Method for forming bright coating film |
-
2009
- 2009-03-16 CN CN200910047616A patent/CN101838498A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1398934A (en) * | 2001-07-24 | 2003-02-26 | 大丰涂料株式会社 | Paint composition for metal product |
| CN101117479A (en) * | 2006-07-31 | 2008-02-06 | 本田技研工业株式会社 | Water-borne primer coating composition and method of forming coating film |
| CN101362132A (en) * | 2007-08-09 | 2009-02-11 | 本田技研工业株式会社 | Method for forming bright coating film |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104098970A (en) * | 2014-07-29 | 2014-10-15 | 广西梧州龙鱼漆业有限公司 | Metallic paint and preparation method thereof |
| CN108350312A (en) * | 2015-09-25 | 2018-07-31 | 阿克佐诺贝尔国际涂料股份有限公司 | Thermoset composition, coating process and the method for producing japanning product |
| US11214705B2 (en) | 2015-09-25 | 2022-01-04 | Akzo Nobel Coatings International B.V. | Thermosetting composition, paint finishing method, and method for producing painted articles |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101386771B (en) | Elastic polyurethane silver paint and preparation method and use method thereof | |
| CN101705048B (en) | High-transparency unsaturated polyester primer and preparation method and use method thereof | |
| JP2021107081A (en) | Bilayer coating film formation method | |
| CN102898929B (en) | Priming/finishing paint applied to galvanized steel sheet | |
| CN102533087B (en) | Polyurethane primer and preparation method thereof | |
| CN102558487A (en) | Composite modified polyurethane emulsion | |
| EP3685928A1 (en) | Method for forming multilayer coating film | |
| CN102746768A (en) | Water-borne colorful glass paint and preparation method and application thereof | |
| CN114231153A (en) | Anti-pollution polyurethane matte clear coating and preparation method and application thereof | |
| CN100999644A (en) | Silver polyester surface finish | |
| CN101838498A (en) | Thermosetting metallic paint and preparation method and application thereof | |
| CN102863888B (en) | Strippable heat-proof antirust protective film coating and preparation method thereof | |
| CN117467315B (en) | Fluorocarbon weather-resistant resin powder coating and preparation method thereof | |
| CN108047915A (en) | Aqueous dual-component top class in a kindergarten table top wear-resisting clear finish and its production method | |
| CN105925166A (en) | Solvent type high-corrosion-resistance primer base for household appliance, preparation method and application thereof | |
| CN111892862B (en) | Finishing varnish and preparation method thereof | |
| CN111704844B (en) | Modified epoxy paint and preparation method and application thereof | |
| CN110128902B (en) | Boiling-resistant high-temperature baking type glass protective coating and preparation method thereof | |
| CN114854261A (en) | Water-based plastic paint and preparation method thereof | |
| CN101081953B (en) | Organosilicon nano enamel coating composition and preparation method thereof | |
| CN113480929A (en) | Primer-topcoat polyurethane coating and preparation method thereof | |
| WO2022088119A1 (en) | Water-based paint highly imitating aluminum composite panel, and preparation method for water-based paint | |
| CN114621646A (en) | Transparent coating composition for stainless steel coiled material and preparation method thereof | |
| CN112778867A (en) | Water-based acrylic finish paint for corrosion prevention of steel plate and preparation method thereof | |
| KR101208665B1 (en) | Hybrid-type coating composition for pcm back |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100922 |