CN104031539B - A kind of electrostatic spraying priming paint - Google Patents
A kind of electrostatic spraying priming paint Download PDFInfo
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- CN104031539B CN104031539B CN201410270681.3A CN201410270681A CN104031539B CN 104031539 B CN104031539 B CN 104031539B CN 201410270681 A CN201410270681 A CN 201410270681A CN 104031539 B CN104031539 B CN 104031539B
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Abstract
The invention provides a kind of electrostatic spraying priming paint, including A agent and B agent, in parts by weight, described A agent includes: 45 parts～62 part of first alkyd resin；A part the second alkyd resin；B part defoamer；C part levelling agent；1 part～5 parts of fillers；1 part～4 parts of bentonite；20 parts～40 parts of solvents；In parts by weight, described B agent includes: d part toluene diisocyanate trimer；30 parts～60 parts of toluene di-isocyanate(TDI) trimethylolpropane addition products；10 parts～50 parts of solvents；The mass ratio of described A agent and B agent is 1:(0.3～0.8).The electrostatic spraying priming paint that the present invention provides includes bentonite, and the content of the toluene diisocyanate trimer in described electrostatic spraying priming paint is less, in the most described electrostatic spraying priming paint, the mass ratio of A agent and B agent is moderate, and the electrostatic spraying priming paint making the present invention provide has preferable sag resistance, covering property and longer gel time.
Description
Technical field
The present invention relates to technical field of coatings, particularly relate to a kind of electrostatic spraying priming paint.
Background technology
Electrostatic spraying be utilize high-pressure electrostatic electric field make electronegative paint particles along the direction directed movement contrary with electric field, and by paint particles absorption at a kind of spraying method of surface of the work.During electrostatic spraying, paint particles can be firmly adsorbed on surface of the work, is effectively prevented coating and escapes, improves the utilization rate of coating, and therefore electrostatic spraying can save substantial amounts of coating.Additionally, electrostatic spraying can also reduce air pollution, make spraying coating process mechanization, serialization, reduce percent defective, improve production efficiency.
Film forming matter and pigment great majority in coating are made up of macromolecular organic compound, it mostly is the electrolyte of conduction, but the conducting value of former paint is typically in the range of 75M Ω cm～400M Ω cm, it is difficult to meet the requirement of electrostatic spraying, needing to add electrostatic diluent increases the electric conductivity of coating.Conventional electrostatic diluent has DAA, butyl lactate, low-carbon (LC) alcohols, ketone equal solvent, and the consumption of electrostatic diluent, regarding the kind of former paint depending on, is as the criterion meeting the conduction requirement of paint vehicle.Open a kind of ultraviolet light polymerization (UV) the electrostatic spraying transparent priming woodwork coating of the Chinese patent of Application No. 201210507675.6, this coating is made up of two kinds of components of A, B, and described component A includes epoxy acrylate, modified epoxy acrylic ester, reactive diluent, defoamer, dust-proofing agent, color stuffing and light trigger；Described B component includes ethyl acetate.This electrostatic spraying transparent priming that prior art provides has advantages such as hardness is high, production efficiency high, grinability is good, but its rate of drying compared with slowly, glossiness poor.
The Chinese patent of Application No. 201310558766.7 discloses a kind of PU electrostatic japanning, forms including priming paint, finish paint, firming agent and electrostatic diluent four part, and described priming paint is made up of the component of following percentage by weight: the alkyd resin of 50%～60%；The organobentonite of 3%～5%；The zinc stearate slurry of 4%～6%；1/2 second nitrification cotton pulp of 10%～20%；The Pulvis Talci of 15%～25%；The anti-settling slurry of polyamide wax of 0.5%～1%；The function additive of 0.3%～1%；The solvent of 5%～7%；Described alkyd resin is range of viscosities 30000Pa s～40000Pa s and 90000Pa s～the mixture of 100000Pa s.Rate of drying is fast, glossiness is high in this electrostatic japanning that prior art provides, but the sag resistance of this electrostatic japanning, covering property are poor, and its gel time is shorter.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of electrostatic spraying priming paint, the electrostatic spraying priming paint that the present invention provides has preferable sag resistance, covering property and longer gel time.
The invention provides a kind of electrostatic spraying priming paint, including A agent and B agent,
In parts by weight, described A agent includes:
First alkyd resin of 45 parts～62 parts, described first alkyd resin includes soybean oil alkyd resin or Oleum Cocois alkyd resin；
Second alkyd resin of a part, 0 ＜ a≤15, described second alkyd resin includes ricinoleyl alcohol acid resin；
The defoamer of b part, 0 ＜ b≤0.5；
The levelling agent of c part, 0 ＜ c≤0.5；
1 part～the filler of 5 parts；
1 part～the bentonite of 4 parts；
20 parts～the solvent of 40 parts；
In parts by weight, described B agent includes:
The toluene diisocyanate trimer of d part, 0 ＜ d≤10；
The toluene di-isocyanate(TDI) of 30 parts～60 parts-trimethylolpropane addition product；
10 parts～the solvent of 60 parts；
The mass ratio of described A agent and B agent is 1:(0.3～0.8).
Preferably, described A agent includes 2 parts～the bentonite of 3 parts.
Preferably, described B agent includes 3 parts～the toluene diisocyanate trimer of 7 parts.
Preferably, the mass ratio of described A agent and B agent is 1:(0.4～0.6).
Preferably, described first alkyd resin is soybean oil alkyd resin.
Preferably, described filler includes Pulvis Talci, Kaolin, silicon dioxide or zinc stearate.
Preferably, described filler is zinc stearate.
Preferably, described defoamer is non-silicon defoaming agent.
Preferably, described levelling agent includes organic silicon type levelling agent or acrylic ester type levelling agent.
Preferably, the solvent in described A agent includes ester type compound or benzene-like compounds；
Solvent in described B agent includes ester type compound or benzene-like compounds.
The invention provides a kind of electrostatic spraying priming paint, including A agent and B agent, in parts by weight, described A agent includes: first alkyd resin of 45 parts～62 parts, and described first alkyd resin includes soybean oil alkyd resin or Oleum Cocois alkyd resin；Second alkyd resin of a part, 0 ＜ a≤15, described second alkyd resin includes ricinoleyl alcohol acid resin；The defoamer of b part, 0 ＜ b≤0.5；The levelling agent of c part, 0 ＜ c≤0.5；1 part～the filler of 5 parts；1 part～the bentonite of 4 parts；20 parts～the solvent of 40 parts；In parts by weight, described B agent includes: the toluene diisocyanate trimer of d part, 0 ＜ d≤10；The toluene di-isocyanate(TDI) of 30 parts～60 parts-trimethylolpropane addition product；10 parts～the solvent of 50 parts；The mass ratio of described A agent and B agent is 1:(0.3～0.8).The electrostatic spraying priming paint that the present invention provides includes that the electrostatic spraying priming paint that bentonite, bentonitic addition make the present invention provide has preferable sag resistance；And the content of the toluene diisocyanate trimer in the electrostatic spraying priming paint of present invention offer is less, the electrostatic spraying priming paint making the present invention provide has longer gel time；In the electrostatic spraying priming paint that the present invention provides simultaneously, the mass ratio of A agent and B agent is moderate, and the electrostatic spraying priming paint making the present invention provide has preferable covering property；Therefore the electrostatic spraying priming paint that the present invention provides has preferable sag resistance, covering property and longer gel time.
Test result indicate that, during the electrostatic spraying basecoat paint that the present invention provides is dried to material surface to described electrostatic spraying priming paint, the bottom on material surface does not has electrostatic spraying priming paint oil droplet, described electrostatic spraying priming paint is dried, the paint film thin and thick on material surface is uniform, and the sag resistance of the electrostatic spraying priming paint that the present invention provides is preferable；The gel time ＞ of the electrostatic spraying that the present invention provides 8 hours, gel time is longer；The electrostatic spraying priming paint present invention provided uses electrostatic sprayer to spray, and coating is smooth, does not has dead angle, and covering property is good.
Detailed description of the invention
The invention provides a kind of electrostatic spraying priming paint, including A agent and B agent,
In parts by weight, described A agent includes:
First alkyd resin of 45 parts～62 parts, described first alkyd resin includes soybean oil alkyd resin or Oleum Cocois alkyd resin；
Second alkyd resin of a part, 0 ＜ a≤15, described second alkyd resin includes ricinoleyl alcohol acid resin；
The defoamer of b part, 0 ＜ b≤0.5；
The levelling agent of c part, 0 ＜ c≤0.5；
1 part～the filler of 5 parts；
1 part～the bentonite of 4 parts；
20 parts～the solvent of 40 parts；
In parts by weight, described B agent includes:
The toluene diisocyanate trimer of d part, 0 ＜ d≤10；
The toluene di-isocyanate(TDI) of 30 parts～60 parts-trimethylolpropane addition product；
10 parts～the solvent of 50 parts；
The mass ratio of described A agent and B agent is 1:(0.3～0.8).
The electrostatic spraying priming paint that the present invention provides includes that the electrostatic spraying priming paint that bentonite, bentonitic addition make the present invention provide has preferable sag resistance；And the content of the toluene diisocyanate trimer in the electrostatic spraying priming paint of present invention offer is less, the electrostatic spraying priming paint making the present invention provide has longer gel time；In the electrostatic spraying priming paint that the present invention provides simultaneously, the mass ratio of A agent and B agent is moderate, and the electrostatic spraying priming paint making the present invention provide has preferable covering property；Therefore the electrostatic spraying priming paint that the present invention provides has preferable sag resistance, covering property and longer gel time.
The electrostatic spraying priming paint that the present invention provides includes that A agent, described A agent include that the first alkyd resin of 45 weight portions～62 weight portions, described first alkyd resin include soybean oil alkyd resin or Oleum Cocois alkyd resin.In the present invention, described A agent preferably includes the first alkyd resin of 48 weight portions～56 weight portions, more preferably 50 weight portions～53 weight portions.In the present invention, the acid number of described first alkyd resin preferably≤12mgKOH/g, more preferably 8mgKOH/g～10mgKOH/g.In the present invention, the viscosity of described first alkyd resin is preferably 70000CPS～90000CPS, more preferably 75000CPS～85000CPS, most preferably 78000CPS～82000CPS.In the present invention, described first alkyd resin is more preferably soybean oil alkyd resin.The present invention does not has special restriction to the source of described first alkyd resin, can be bought by market and obtain.In an embodiment of the present invention, described first alkyd resin can be the 3310 type soybean oil alkyd resin that Foshan immortality Chemical Co., Ltd. provides.
In the present invention, on the basis of the parts by weight of the first alkyd resin, described A agent includes the second alkyd resin of a weight portion, 0 ＜ a≤15, and described second alkyd resin includes ricinoleyl alcohol acid resin.In the present invention, described A agent preferably includes the second alkyd resin of 4 weight portions～12 weight portions, more preferably 8 weight portions～10 weight portions.In the present invention, the acid number of described second alkyd resin preferably≤9mgKOH/g, more preferably 6mgKOH/g～8mgKOH/g.In the present invention, the viscosity of described second alkyd resin is preferably 6500mPa s～7500mPa s, more preferably 6800mPa s～7200mPa s, most preferably 7000mPa s.The present invention does not has special restriction to the source of described second alkyd resin, can be bought by market and obtain.In an embodiment of the present invention, described second alkyd resin can be the 735A type ricinoleyl alcohol acid resin that Foshan Jingsha Chemical Co., Ltd. provides.
In the present invention, on the basis of the parts by weight of the first alkyd resin, described A agent includes the defoamer of b weight portion, 0 ＜ b≤0.5；Preferably, 0.2≤b≤0.4；It is furthermore preferred that b is 0.3.In the present invention, the bubble during described defoamer can eliminate the electrostatic spraying priming paint that the present invention provides, it is to avoid the disadvantage such as shrinkage cavity, pinprick occurs in the film of electrostatic spraying priming paint.The present invention does not has special restriction to kind and the source of described defoamer, uses coating defoamer well known to those skilled in the art, can be bought by market and obtain.In the present invention, described defoamer is preferably non-silicon defoaming agent, more preferably solvent-borne type non-silicon defoaming agent.In an embodiment of the present invention, described defoamer can be HX2300 type defoamer or the HX2500 type defoamer of China's Chemical Group offer.
In the present invention, on the basis of the parts by weight of the first alkyd resin, described A agent includes the levelling agent of c weight portion, 0 ＜ c≤0.5；Preferably, 0.2≤c≤0.4；It is furthermore preferred that c is 0.3.In the present invention, the electrostatic spraying priming paint that described levelling agent makes the present invention provide forms film smooth, smooth, uniform.The present invention does not has special restriction to kind and the source of described levelling agent, uses leveling agent for coating well known to those skilled in the art, can be bought by market and obtain.In the present invention, described levelling agent preferably includes organic silicon type levelling agent or acrylic ester type levelling agent.In the present invention, described organic silicon type levelling agent is preferably polysiloxane leveling agents, the polysiloxane leveling agents that more preferably aromatic radical is modified.In the present invention, described acrylic ester type levelling agent is preferably polyacrylate flow agent.In an embodiment of the present invention, described levelling agent can be HX3200 type levelling agent or the HX3130 type levelling agent of China's Chemical Group offer.
In the present invention, on the basis of the parts by weight of the first alkyd resin, described A agent includes 1 weight portion～the filler of 5 weight portions, more preferably 2 weight portions～4 weight portions, most preferably 3 weight portions.In the present invention, described filler preferably includes Pulvis Talci, Kaolin, silicon dioxide or zinc stearate, more preferably zinc stearate.Present invention preferably employs zinc stearate is filler, and described zinc stearate can improve grinability and the transparency of the electrostatic spraying priming paint that the present invention provides.The present invention does not has special restriction to the source of described filler, uses the filler of mentioned kind well known to those skilled in the art, can be bought by market and obtain.
In the present invention, on the basis of the parts by weight of the first alkyd resin, described A agent includes 1 weight portion～the bentonite of 4 weight portions, preferably 2 weight portions～3 weight portions.In the present invention, the electrostatic spraying priming paint that described bentonite makes the present invention provide has preferable sag resistance.In the present invention, described bentonite is preferably organobentonite.In the present invention, described bentonite granularity is preferably 160 mesh～240 mesh, more preferably 180 mesh～220 mesh, most preferably 200 mesh.In the present invention, in described organobentonite, the mass content of montmorillonite is preferably >=90%.The present invention does not has special restriction to described bentonitic source, can be bought by market and obtain.In an embodiment of the present invention, described bentonite can be the BT-828 type organobentonite that Anji Gekko Swinhonis company provides.
In the present invention, on the basis of the parts by weight of the first alkyd resin, described A agent includes 20 weight portions～the solvent of 40 weight portions, preferably 25 weight portions～35 weight portions, more preferably 28 weight portions～32 weight portions.The present invention does not has special restriction to kind and the source of described solvent, uses paint solvent well known to those skilled in the art, can be bought by market and obtain.In the present invention, described solvent preferably includes ester type compound or benzene-like compounds, more preferably ethyl acetate, n-butyl acetate, isopropyl acetate, propylene glycol methyl ether acetate, toluene or dimethylbenzene, most preferably n-butyl acetate, propylene glycol methyl ether acetate or dimethylbenzene.
The electrostatic spraying priming paint that the present invention provides includes that B agent, described B agent include the toluene diisocyanate trimer of d weight portion, 0 ＜ d≤10；Preferably, 3≤d≤7；It is furthermore preferred that 4≤d≤6；Most preferably, d is 5.In the electrostatic spraying priming paint that the present invention provides, the content of toluene di-isocyanate(TDI) is less, makes described electrostatic spraying priming paint have longer gel time.The present invention does not has special restriction to the source of described toluene diisocyanate trimer, can be bought by market and obtain.In an embodiment of the present invention, described toluene diisocyanate trimer can be Bayer IL1451 type firming agent.
In the present invention, on the basis of the parts by weight of toluene diisocyanate trimer, described B agent includes the toluene di-isocyanate(TDI)-trimethylolpropane addition product of 30 weight portions～60 weight portions, it is preferably 35 weight portions～55 weight portions, more preferably 40 weight portions～50 weight portions, most preferably 45 weight portions～48 weight portions.In the present invention, described toluene di-isocyanate(TDI)-trimethylolpropane addition product is firming agent with toluene diisocyanate trimer described in technique scheme, described toluene di-isocyanate(TDI)-trimethylolpropane addition product and toluene diisocyanate trimer react with the first alkyd resin described in technique scheme and the second alkyd resin, make the electrostatic spraying priming paint film forming that the present invention provides.The present invention does not has special restriction to the source of described toluene di-isocyanate(TDI)-trimethylolpropane addition product, can be bought by market and obtain.In an embodiment of the present invention, described toluene di-isocyanate(TDI)-trimethylolpropane addition product can be three well L-75 type firming agent.
In the present invention, on the basis of the parts by weight of toluene diisocyanate trimer, described B agent includes 10 weight portions～the solvent of 60 weight portions, preferably 20 weight portions～50 weight portions, more preferably 30 weight portions～40 weight portions.In the present invention, in described B agent, the kind of solvent is consistent with kind and the source of solvent in A agent described in technique scheme with source, does not repeats them here.In the present invention, the solvent in described B agent can be same with the solvent phase in A agent described in technique scheme, it is also possible to different.
In the present invention, the mass ratio of described A agent and B agent is 1:(0.3～0.8), preferably 1:(0.4～0.6), more preferably 1:0.5.A agent and the mass ratio of B agent in the electrostatic spraying priming paint that the present invention provides are suitable, make described electrostatic spraying priming paint have preferable covering property.
In the present invention, the preparation method of electrostatic spraying priming paint described in technique scheme is preferably:
A agent and B agent are mixed, obtains electrostatic spraying priming paint.
A agent and B agent, preferably under conditions of stirring, are mixed, obtain electrostatic spraying priming paint by the present invention.In the present invention, the speed of described stirring is preferably 800 revs/min～1200 revs/min, more preferably 1000 revs/min.In the present invention, described electrostatic spraying priming paint is the most now with the current.
In the present invention, described A agent is consistent with the parts by weight of each component in A agent described in technique scheme and B agent and each component with the parts by weight of each component in B agent and each component, does not repeats them here.In the present invention, described A agent is consistent with the mass ratio of A agent and B agent described in technique scheme with the mass ratio of B agent, does not repeats them here.Each component in A agent is preferably mixed by the present invention, obtains A agent composition；Each component in B agent is mixed, obtains B agent composition；Described A agent composition and B agent composition are mixed, obtains electrostatic spraying priming paint；The restriction of the not free order of each component in each component in described mixing A agent and mixing B agent.
In the present invention, in described mixing A agent, the method for each component is preferably:
Solvent in first alkyd resin, the second alkyd resin and A agent is carried out the first mixing, obtains the first mixture；Described first mixture and defoamer, levelling agent are carried out the second mixing, obtains the second mixture；Described second mixture and bentonite are carried out the 3rd mixing, obtains the 3rd mixture；Described 3rd mixture and filler are carried out the 4th mixing, obtains A agent composition.
The present invention does not has special restriction to the method for described first mixing, uses hybrid technology scheme well known to those skilled in the art.After obtaining the first mixture, defoamer and levelling agent are preferably joined in described first mixture and carry out the second mixing by the present invention, obtain the second mixture.In the present invention, the time of described second mixing is preferably 8 minutes～12 minutes, more preferably 10 minutes.After obtaining the second mixture, bentonite is preferably joined in described second mixture and carries out the 3rd mixing by the present invention, obtains the 3rd mixture.In the present invention, the fineness of described 3rd mixture preferably≤50 microns.After obtaining the 3rd mixture, filler is preferably joined in described 3rd mixing and carries out the 4th mixing by the present invention, obtains A agent composition.In the present invention, the time of described 4th mixing is preferably 8 minutes～12 minutes, more preferably 10 minutes.
In the present invention, the kind of solvent, defoamer, levelling agent, bentonite and filler, source and parts by weight in described first alkyd resin, the second alkyd resin, A agent are consistent with the kind of solvent, defoamer, levelling agent, bentonite and filler, source and the parts by weight in the first alkyd resin, the second alkyd resin, A agent described in technique scheme, do not repeat them here.
In the present invention, in described mixing B agent, the method for each component is preferably:
Solvent in toluene di-isocyanate(TDI)-trimethylolpropane addition product and B agent is mixed；The mixture obtained and toluene diisocyanate trimer are mixed, obtains B agent composition.
After being mixed by solvent in toluene di-isocyanate(TDI)-trimethylolpropane addition product and B agent, the present invention preferably adds toluene diisocyanate trimer in the mixture obtained and mixes, and obtains B agent composition.
The present invention does not has special restriction to the using method of described electrostatic spraying priming paint, and the electrostatic spraying priming paint present invention provided uses electrostatic spraying apparatus to spray.Before carrying out described spraying, the material of required application is preferably polished flat by the present invention.
The electrostatic spraying priming paint that the present invention provides is carried out anti-sag performance test, method particularly includes:
The electrostatic spraying basecoat paint present invention provided, on material surface, observes the described electrostatic spraying priming paint distribution situation on material surface.The electrostatic spraying basecoat paint that test result provides for the present invention is during material surface is dried to described electrostatic spraying priming paint, the bottom on material surface does not has electrostatic spraying priming paint oil droplet, the paint film thin and thick on described electrostatic spraying priming paint dried material surface is uniform, and the sag resistance of the electrostatic spraying priming paint that the present invention provides is preferable.
The electrostatic spraying priming paint that the present invention provides is carried out gel time test, method particularly includes:
A agent in above-mentioned electrostatic spraying priming paint and B agent being mixed, obtain mixture, described A agent is consistent with the mass ratio of A agent described in technique scheme and B agent with the mass ratio of B agent；Using rock field 2 cup to test the viscosity of described mixture, start timing when the described mixture delivery time in the cup of rock field 2 is 8.5 seconds～9.5 seconds, when the described mixture delivery time in the cup of rock field 2 is 14 seconds～15 seconds, timing terminates；The timing time obtained is the gel time of the electrostatic spraying priming paint that the present invention provides.Test result is, the gel time ＞ of the electrostatic spraying priming paint that the present invention provides 8 hours, gel time is longer.
The electrostatic spraying priming paint that the present invention provides is carried out covering property test, method particularly includes:
Flat board material is sprayed on electrostatic sprayer by the electrostatic spraying priming paint using the present invention to provide, and the voltage of described electrostatic sprayer is 100,000 volts, and electric current is 85 milliamperes, and defeated paint air pressure is 0.2 MPa, and atomization air pressure is 0.18 MPa.Test result is, the material coating after the electrostatic spraying primer painting that the present invention provides is smooth, does not has dead angle, and covering property is preferable.
The invention provides a kind of electrostatic spraying priming paint, including A agent and B agent, in parts by weight, described A agent includes: first alkyd resin of 45 parts～62 parts, and described first alkyd resin includes soybean oil alkyd resin or Oleum Cocois alkyd resin；Second alkyd resin of a part, 0 ＜ a≤15, described second alkyd resin includes ricinoleyl alcohol acid resin；The defoamer of b part, 0 ＜ b≤0.5；The levelling agent of c part, 0 ＜ c≤0.5；1 part～the filler of 5 parts；1 part～the bentonite of 4 parts；20 parts～the solvent of 40 parts；In parts by weight, described B agent includes: the toluene diisocyanate trimer of d part, 0 ＜ d≤10；The toluene di-isocyanate(TDI) of 30 parts～60 parts-trimethylolpropane addition product；10 parts～the solvent of 50 parts；The mass ratio of described A agent and B agent is 1:(0.3～0.8).The electrostatic spraying priming paint that the present invention provides includes that the electrostatic spraying priming paint that bentonite, bentonitic addition make the present invention provide has preferable sag resistance；And the content of the toluene diisocyanate trimer in the electrostatic spraying priming paint of present invention offer is less, the electrostatic spraying priming paint making the present invention provide has longer gel time；In the electrostatic spraying priming paint that the present invention provides simultaneously, the mass ratio of A agent and B agent is moderate, and the electrostatic spraying priming paint making the present invention provide has preferable covering property；Therefore the electrostatic spraying priming paint that the present invention provides has preferable sag resistance, covering property and longer gel time.
In order to further appreciate that the present invention, the electrostatic spraying priming paint provided the present invention below in conjunction with embodiment is described in detail, but they can not be interpreted as limiting the scope of the present invention.
Raw material used in following example of the present invention is commercial goods.
Embodiment 1
Under the mixing speed of 1000 revs/min, the n-butyl acetate of the 3310 type soybean oil alkyd resin of 50g, the 735A type ricinoleyl alcohol acid resin of 12g and 32.6g is carried out the first mixing, obtains the first mixture；The HX3200 type levelling agent of the HX2300 type defoamer and 0.3g that add 0.3g in described first mixture carries out second mixing of 10 minutes, obtains the second mixture；Mix to described second and thing adds the BT-828 type organobentonite of 2g carry out the 3rd mixing, obtain the 3rd mixture of fineness≤50 micron；The zinc stearate adding 3g in described 3rd mixture carries out the 4th mixing of 10 minutes, obtains A agent composition.
By three well L-75 type firming agent and the n-butyl acetate mixing of 50g of 45g, the Bayer IL1451 type firming agent adding 5g in the mixture obtained mixes, and obtains B agent composition.
Described A agent composition and B agent composition are mixed according to the ratio that mass ratio is 1:0.5, obtains electrostatic spraying priming paint.
The electrostatic spraying basecoat paint embodiment of the present invention 1 obtained is on material surface, observe the described electrostatic spraying priming paint distribution situation on material surface, the electrostatic spraying basecoat paint that observed result provides for the embodiment of the present invention 1 is during material surface is dried to described electrostatic spraying priming paint, the bottom on material surface does not has electrostatic spraying priming paint oil droplet, the paint film thin and thick on described electrostatic spraying priming paint dried material surface is uniform, and the electrostatic spraying priming paint that the embodiment of the present invention 1 provides has preferable sag resistance.
A agent composition in the embodiment of the present invention 1 and B agent composition are mixed according to the ratio that mass ratio is 1:0.5, rock field 2 cup is used to test the viscosity of the mixture obtained, timing is started when the described mixture delivery time in the cup of rock field 2 is 9 seconds, after 8 hours, the described mixture delivery time in the cup of rock field 2 is 11.8 seconds, therefore the gel time ＞ of the electrostatic spraying priming paint that the embodiment of the present invention 1 provides 8 hours, the electrostatic spraying priming paint that the embodiment of the present invention 1 provides has longer gel time.
Flat board material is sprayed on electrostatic sprayer by the electrostatic spraying priming paint embodiment of the present invention 1 provided, and the voltage of described electrostatic sprayer is 100,000 volts, and electric current is 85 milliamperes, and defeated paint air pressure is 0.2 MPa, and atomization air pressure is 0.18 MPa.Material coating after the electrostatic spraying primer painting that the embodiment of the present invention 1 provides is smooth, do not have dead angle, and the electrostatic spraying priming paint that the embodiment of the present invention 1 provides has preferable covering property.
Embodiment 2
Under the mixing speed of 800 revs/min, the propylene glycol methyl ether acetate of the 3310 type soybean oil alkyd resin of 45g, the 735A type ricinoleyl alcohol acid resin of 4g and 20g is carried out the first mixing, obtains the first mixture；The HX3130 type levelling agent of the HX2500 type defoamer and 0.4g that add 0.2g in described first mixture carries out second mixing of 8 minutes, obtains the second mixture；Mix to described second and thing adds the bentonite of 1g carry out the 3rd mixing, obtain the 3rd mixture of fineness≤50 micron；The zinc stearate adding 1g in described 3rd mixture carries out the 4th mixing of 12 minutes, obtains A agent composition.
By three well L-75 type firming agent and the propylene glycol methyl ether acetate mixing of 60g of 30g, the Bayer IL1451 type firming agent adding 3g in the mixture obtained mixes, and obtains B agent composition.
Described A agent composition and B agent composition are mixed according to the ratio that mass ratio is 1:0.3, obtains electrostatic spraying priming paint.
The electrostatic spraying priming paint embodiment of the present invention 2 obtained tests its sag resistance, gel time and covering property according to the method described in embodiment 1, the electrostatic spraying basecoat paint that test result provides for the embodiment of the present invention 2 is during material surface is dried to described electrostatic spraying priming paint, the bottom on material surface does not has electrostatic spraying priming paint oil droplet, and the paint film thin and thick on described electrostatic spraying priming paint dried material surface is uniform；The gel time ＞ of the electrostatic spraying priming paint that the embodiment of the present invention 2 provides 8 hours；Material coating after the electrostatic spraying primer painting that the embodiment of the present invention 2 provides is smooth, do not have dead angle；The electrostatic spraying priming paint that the embodiment of the present invention 2 provides has preferable sag resistance, covering property and longer gel time.
Embodiment 3
Under the mixing speed of 1200 revs/min, the dimethylbenzene of the Oleum Cocois alkyd resin of 56g, the 735A type ricinoleyl alcohol acid resin of 10g and 28g is carried out the first mixing, obtains the first mixture；The HX3200 type levelling agent of the HX2500 type defoamer and 0.2g that add 0.4g in described first mixture carries out second mixing of 12 minutes, obtains the second mixture；Mix to described second and thing adds the bentonite of 3g carry out the 3rd mixing, obtain the 3rd mixture of fineness≤50 micron；The zinc stearate adding 4g in described 3rd mixture carries out the 4th mixing of 8 minutes, obtains A agent composition.
By three well L-75 type firming agent and the dimethylbenzene mixing of 40g of 50g, the Bayer IL1451 type firming agent adding 7g in the mixture obtained mixes, and obtains B agent composition.
Described A agent composition and B agent composition are mixed according to the ratio that mass ratio is 1:0.6, obtains electrostatic spraying priming paint.
The electrostatic spraying priming paint embodiment of the present invention 3 obtained tests its sag resistance, gel time and covering property according to the method described in embodiment 1, the electrostatic spraying basecoat paint that test result provides for the embodiment of the present invention 3 is during material surface is dried to described electrostatic spraying priming paint, the bottom on material surface does not has electrostatic spraying priming paint oil droplet, and the paint film thin and thick on described electrostatic spraying priming paint dried material surface is uniform；The gel time ＞ of the electrostatic spraying priming paint that the embodiment of the present invention 3 provides 8 hours；Material coating after the electrostatic spraying primer painting that the embodiment of the present invention 3 provides is smooth, do not have dead angle；The electrostatic spraying priming paint that the embodiment of the present invention 3 provides has preferable sag resistance, covering property and longer gel time.
Embodiment 4
Under the mixing speed of 1000 revs/min, the n-butyl acetate of the 3310 type soybean oil alkyd resin of 62g, the 735A type ricinoleyl alcohol acid resin of 15g and 40g is carried out the first mixing, obtains the first mixture；The HX3130 type levelling agent of the HX2300 type defoamer and 0.5g that add 0.5g in described first mixture carries out second mixing of 10 minutes, obtains the second mixture；Mix to described second and thing adds the bentonite of 5g carry out the 3rd mixing, obtain the 3rd mixture of fineness≤50 micron；The zinc stearate adding 5g in described 3rd mixture carries out the 4th mixing of 10 minutes, obtains A agent composition.
By three well L-75 type firming agent and the dimethylbenzene mixing of 10g of 60g, the Bayer IL1451 type firming agent adding 10g in the mixture obtained mixes, and obtains B agent composition.
Described A agent composition and B agent composition are mixed according to the ratio that mass ratio is 1:0.8, obtains electrostatic spraying priming paint.
The electrostatic spraying priming paint embodiment of the present invention 4 obtained tests its sag resistance, gel time and covering property according to the method described in embodiment 1, the electrostatic spraying basecoat paint that test result provides for the embodiment of the present invention 4 is during material surface is dried to described electrostatic spraying priming paint, the bottom on material surface does not has electrostatic spraying priming paint oil droplet, and the paint film thin and thick on described electrostatic spraying priming paint dried material surface is uniform；The gel time ＞ of the electrostatic spraying priming paint that the embodiment of the present invention 4 provides 8 hours；Material coating after the electrostatic spraying primer painting that the embodiment of the present invention 4 provides is smooth, do not have dead angle；The electrostatic spraying priming paint that the embodiment of the present invention 4 provides has preferable sag resistance, covering property and longer gel time.
Comparative example 1
Under the mixing speed of 1000 revs/min, the n-butyl acetate of the 3310 type soybean oil alkyd resin of 70g, the 735A type ricinoleyl alcohol acid resin of 12g and 32.6g is carried out the first mixing, obtains the first mixture；The HX3200 type levelling agent of the HX2300 type defoamer and 0.3g that add 0.3g in described first mixture carries out second mixing of 10 minutes, obtains the second mixture；The zinc stearate adding 3g in described second mixture carries out the 3rd mixing of 10 minutes, obtains A agent composition.
By three well L-75 type firming agent and the n-butyl acetate mixing of 50g of 5g, the Bayer IL1451 type firming agent adding 45g in the mixture obtained mixes, and obtains B agent composition.
Described A agent composition and B agent composition are mixed according to the ratio that mass ratio is 1:2, obtains electrostatic spraying priming paint.
The electrostatic spraying priming paint obtained by comparative example 1 of the present invention tests its sag resistance, gel time and covering property according to the method described in embodiment 1, the electrostatic spraying basecoat paint that test result provides for comparative example 1 of the present invention is during material surface is dried to described electrostatic spraying priming paint, electrostatic spraying priming paint oil droplet is dripped from the lower end on material surface, described electrostatic spraying priming paint is dried, there is pit on material surface, and the first half paint film on material surface is relatively thin, the lower end paint film closer to material surface is the thickest；The gel time of the electrostatic spraying priming paint that comparative example 1 of the present invention provides is 2 hours；Material coating after the electrostatic spraying primer painting that comparative example 1 of the present invention provides has pit, has dead angle；The sag resistance of electrostatic spraying priming paint, covering property that comparative example 1 of the present invention provides are poor, and its gel time is shorter.
As seen from the above embodiment, the invention provides a kind of electrostatic spraying priming paint, including A agent and B agent, in parts by weight, described A agent includes: first alkyd resin of 45 parts～62 parts, and described first alkyd resin includes soybean oil alkyd resin or Oleum Cocois alkyd resin；Second alkyd resin of a part, 0 ＜ a≤15, described second alkyd resin includes ricinoleyl alcohol acid resin；The defoamer of b part, 0 ＜ b≤0.5；The levelling agent of c part, 0 ＜ c≤0.5；1 part～the filler of 5 parts；1 part～the bentonite of 4 parts；20 parts～the solvent of 40 parts；In parts by weight, described B agent includes: the toluene diisocyanate trimer of d part, 0 ＜ d≤10；The toluene di-isocyanate(TDI) of 30 parts～60 parts-trimethylolpropane addition product；10 parts～the solvent of 50 parts；The mass ratio of described A agent and B agent is 1:(0.3～0.8).The electrostatic spraying priming paint that the present invention provides includes that the electrostatic spraying priming paint that bentonite, bentonitic addition make the present invention provide has preferable sag resistance；And the content of the toluene diisocyanate trimer in the electrostatic spraying priming paint of present invention offer is less, the electrostatic spraying priming paint making the present invention provide has longer gel time；In the electrostatic spraying priming paint that the present invention provides simultaneously, the mass ratio of A agent and B agent is moderate, and the electrostatic spraying priming paint making the present invention provide has preferable covering property；Therefore the electrostatic spraying priming paint that the present invention provides has preferable sag resistance, covering property and longer gel time.
The explanation of above example is only intended to help to understand method and the core concept thereof of the present invention.It should be pointed out that, for the person of ordinary skill of the art, under the premise without departing from the principles of the invention, it is also possible to the present invention is carried out some improvement and modification, these improve and modify in the protection domain also falling into the claims in the present invention.Described above to the disclosed embodiments, makes the special technical staff in this area be capable of or use the present invention, and the multiple amendment to these embodiments will be apparent from for professional and technical personnel in the field.Generic principles defined herein can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and novel features.
Claims (10)
1. an electrostatic spraying priming paint, including A agent and B agent,
In parts by weight, described A agent includes:
First alkyd resin of 45 parts～62 parts, described first alkyd resin include soybean oil alkyd resin or
Oleum Cocois alkyd resin；
Second alkyd resin of a part, 0 ＜ a≤15, described second alkyd resin includes ricinoleyl alcohol acid resin；
The defoamer of b part, 0 ＜ b≤0.5；
The levelling agent of c part, 0 ＜ c≤0.5；
1 part～the filler of 5 parts；
1 part～the bentonite of 4 parts；
20 parts～the solvent of 40 parts；
In parts by weight, described B agent includes:
The toluene diisocyanate trimer of d part, 0 ＜ d≤10；
The toluene di-isocyanate(TDI) of 30 parts～60 parts-trimethylolpropane addition product；
10 parts～the solvent of 60 parts；
The mass ratio of described A agent and B agent is 1:(0.3～0.8).
Electrostatic spraying priming paint the most according to claim 1, it is characterised in that described A agent includes 2
Part～the bentonite of 3 parts.
Electrostatic spraying priming paint the most according to claim 1, it is characterised in that described B agent includes 3
Part～the toluene diisocyanate trimer of 7 parts.
Electrostatic spraying priming paint the most according to claim 1, it is characterised in that described A agent and B
The mass ratio of agent is 1:(0.4～0.6).
Electrostatic spraying priming paint the most according to claim 1, it is characterised in that described first alkyd tree
Fat is soybean oil alkyd resin.
Electrostatic spraying priming paint the most according to claim 1, it is characterised in that described filler includes sliding
Stone powder, Kaolin, silicon dioxide or zinc stearate.
Electrostatic spraying priming paint the most according to claim 6, it is characterised in that described filler is stearic
Acid zinc.
Electrostatic spraying priming paint the most according to claim 1, it is characterised in that described defoamer is non-
Silicon defoaming agent.
Electrostatic spraying priming paint the most according to claim 1, it is characterised in that described levelling agent includes
Organic silicon type levelling agent or acrylic ester type levelling agent.
Electrostatic spraying priming paint the most according to claim 1, it is characterised in that in described A agent
Solvent includes ester type compound or benzene-like compounds；
Solvent in described B agent includes ester type compound or benzene-like compounds.
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| CN114032014A (en) * | 2021-11-30 | 2022-02-11 | 广东鸿昌化工有限公司 | PU white primer for pine and preparation method thereof |
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| CN1640970A (en) * | 2004-02-26 | 2005-07-20 | 深圳市展辰达化工有限公司 | Polyurethane termite-proof insect-protected enclosed primping paint |
| CN101555380B (en) * | 2008-04-12 | 2011-08-03 | 方学平 | Antibacterial polyurethane wood floor paint |
| CN102382564A (en) * | 2011-09-01 | 2012-03-21 | 立邦涂料(成都)有限公司 | Polyurethane matt woodenware paint |
| CN103131316A (en) * | 2013-03-15 | 2013-06-05 | 立邦涂料(成都)有限公司 | Clear wood paint and preparation method thereof |
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2014
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1640970A (en) * | 2004-02-26 | 2005-07-20 | 深圳市展辰达化工有限公司 | Polyurethane termite-proof insect-protected enclosed primping paint |
| CN101555380B (en) * | 2008-04-12 | 2011-08-03 | 方学平 | Antibacterial polyurethane wood floor paint |
| CN102382564A (en) * | 2011-09-01 | 2012-03-21 | 立邦涂料(成都)有限公司 | Polyurethane matt woodenware paint |
| CN103131316A (en) * | 2013-03-15 | 2013-06-05 | 立邦涂料(成都)有限公司 | Clear wood paint and preparation method thereof |
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Address after: 518000. South of sightseeing highway, Baihua Industrial Park, Guangming District, Guangdong, Shenzhen Applicant after: China Zhanchen New Materials Group Co.,Ltd. Applicant after: SHANGHAI ZHANCHEN PAINT Co.,Ltd. Applicant after: BEIJING ZHANCHEN NEW MATERIAL Co.,Ltd. Applicant after: CHENGDU ZHANCHEN PAINTS Co.,Ltd. Applicant after: QINGDAO ZHANCHEN NEW MATERIAL Co.,Ltd. Address before: 518000, south of sightseeing South Road, Guangming Industrial Zone, Guangming District, Guangdong, Shenzhen Applicant before: ZHANCHEN PAINT GROUP Co.,Ltd. Applicant before: SHANGHAI ZHANCHEN PAINT Co.,Ltd. Applicant before: Beijing Zhanchen Chemical Co.,Ltd. Applicant before: CHENGDU ZHANCHEN CHEMICAL Co.,Ltd. Applicant before: QINGDAO ZHANCHEN NEW MATERIAL Co.,Ltd. |
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