CN108178973A - A kind of very fast automobile multifunctional floating coating and preparation method thereof - Google Patents
A kind of very fast automobile multifunctional floating coating and preparation method thereof Download PDFInfo
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- CN108178973A CN108178973A CN201711208454.8A CN201711208454A CN108178973A CN 108178973 A CN108178973 A CN 108178973A CN 201711208454 A CN201711208454 A CN 201711208454A CN 108178973 A CN108178973 A CN 108178973A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention belongs to car paint technical fields, and in particular to a kind of very fast automobile multifunctional floating coating and preparation method thereof.Very fast automobile multifunctional floating coating provided by the invention is made of component A, B component and diluent, and the component A is made of ultrafast hyperbranched type acrylic resin, activation low-molecular-weight resin, butyl acetate, dispersant, the coupling agent modified nano kaoline of siloxy group, superfine talcum powder, the coupling agent modified nano barium sulfate of siloxy group, activation siloxy group coupling agent, titanium dioxide and the organoclay done；The B component is made of modified high-molecular polyisocyanate curing agent and butyl acetate；The diluent is made of catalyst and butyl acetate；The weight proportion of the component A, B component and diluent is 4:1:1.5‑2.The very fast automobile multifunctional floating coating of the present invention is vdiverse in function, can carry out full vehicle spraying and exempt from the operation of polishing spray finishing coat, at room temperature, spraying can polish for 20 minutes, have good adhesive force.
Description
Technical field
The invention belongs to car paint technical fields, and in particular to a kind of very fast automobile multifunctional floating coating and its preparation side
Method.
Background technology
Coating be it is a kind of be coated in object (protected and by decorative object) surface simultaneously can firm attachment continuous film
Matching engineering material, the main film forming matter of coating are made of grease and high molecular material (resin), nonvolatile activity dilution
Agent also belongs to film forming matter, it is that coating is firmly attached to the main matter that continuous film is formed on coated article surface, is to form to apply
The basis of material plays decisive action to film physical and chemical performance.Automotive Primer Surfacer is also referred to as surfacer, refer between priming paint and
Between finishing coat, its major function is to improve the flatness of surface of bottom material and prime coat, provides good substrate for top coat layer, in this way
Be conducive to the clarity of topcoat and the dicoration of richness and entire coating.
Chinese patent application CN102702940A discloses a kind of Automotive Primer Surfacer, and the floating coating includes (a) self-emulsifying
Polyester resin, (b) curing agent and (C) water；(a) self-emulsifying polyester resin includes polyalcohol, polyacid, 1,4- hexamethylenes two
Ethyl alcohol, dibutyl tin by compounding the content of each component in self-emulsifying polyester resin, obtain a kind of moisture of low viscosity and dissipate
Body.But the function of floating coating is more single obtained by the invention.
Chinese patent application CN101624496A discloses a kind of a kind of aqueous primer surfacer and its system for painting dressing automobiles
Make method, it is made of 40%-60% water-dispersion types resin, 25% color stuffing, 5% auxiliary agent and 10-30% water, and the moisture dissipates
The main ingredient of type resin includes hydrophilic polyester resin, water-compatible amino resin, and color stuffing can be titanium dioxide, and auxiliary agent can be with
It is acrylate, water can be distilled water；Color stuffing makes its fineness within 15 μm, by water-dispersion type through high speed dispersion, grinding
Resin is mixed with ground color stuffing, adds in auxiliary agent and distilled water, after high speed dispersion again to get.But the invention institute
The function of obtaining floating coating is more single, it is impossible to carry out full vehicle spraying.
At present, existing Automotive Primer Surfacer is more single there are function, it is impossible to carry out full vehicle spraying and exempt from polishing spray finishing coat
The defects of operation；And can be ground within 20 minutes in floating coating on the market, 3-4 grades of adhesive force, adhesive force can reach 1 grade of middle painting
The paint polishing time will have the shortcomings that polishing time is long, and adhesive force is low at 1 hour.
Invention content
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of very fast automobile multifunctional floating coating and its systems
Preparation Method.At room temperature, spraying can polish very fast automobile multifunctional floating coating provided by the invention for 20 minutes, have good
Adhesive force.In addition, very fast automobile multifunctional floating coating provided by the invention is vdiverse in function, full vehicle spraying can be carried out and exempt to beat
Grind spray paint operation.
The technical scheme is that：
A kind of very fast automobile multifunctional floating coating, is made of component A, B component and diluent, wherein, the component A is by such as
Lower component and its parts by weight composition：It is ultrafast to do hyperbranched 30-50 parts of type acrylic resin, activation low-molecular-weight resin 1-3
Part, 5-10 parts of butyl acetate, 0.1-0.6 parts of dispersant, coupling agent modified nano kaoline 5-15 parts of siloxy group, extra fine talc
5-15 parts of powder, coupling agent modified nano barium sulfate 3-12 parts of siloxy group activate 1-3 parts of siloxy group coupling agent, titanium dioxide
8-22 parts, 0.3-1 parts of organoclay；
The B component is made of following component and its parts by weight：30-60 parts of modified high-molecular polyisocyanate curing agent,
20-50 parts of butyl acetate；
The diluent is made of following component and its parts by weight：1-5 parts of catalyst, 95-100 parts of butyl acetate；
The weight proportion of the component A, B component and diluent is 4:1:1.5-2.
Preferably, the very fast automobile multifunctional floating coating, is made of component A, B component and diluent, wherein, the A
Component is made of following component and its parts by weight：It is ultrafast to do hyperbranched 40-49 parts of type acrylic resin, activate low molecular weight
1.8-2.5 parts of resin, 6-8 parts of butyl acetate, 0.3-0.6 parts of dispersant, the coupling agent modified nano kaoline 9-13 of siloxy group
Part, 10-14 parts of superfine talcum powder, coupling agent modified nano barium sulfate 8-12 parts of siloxy group activates siloxy group coupling agent
1-2 parts, 15-20 parts of titanium dioxide, 0.5-0.9 parts of organoclay；
The B component is made of following component and its parts by weight：46-54 parts of modified high-molecular polyisocyanate curing agent,
42-49 parts of butyl acetate；
The diluent is made of following component and its parts by weight：1-3 parts of catalyst, 96-99 parts of propene carbonate；
The weight proportion of the component A, B component and diluent is 4:1:1.6-2.
It is further preferred that the very fast automobile multifunctional floating coating, is made of component A, B component and diluent, wherein, institute
Component A is stated to be made of following component and its parts by weight：It is ultrafast to do hyperbranched 48 parts of type acrylic resin, activate low molecular weight
2.2 parts of resin, 7 parts of butyl acetate, 0.5 part of dispersant, 12 parts of the coupling agent modified nano kaoline of siloxy group, superfine talcum powder
12 parts, 11 parts of the coupling agent modified nano barium sulfate of siloxy group, 1 part of activation siloxy group coupling agent, 18 parts of titanium dioxide is organic
0.7 part of soil；
The B component is made of following component and its parts by weight：52 parts of modified high-molecular polyisocyanate curing agent, acetic acid
48 parts of butyl ester；
The diluent is made of following component and its parts by weight：2 parts of catalyst, 98 parts of propene carbonate；
The weight proportion of the component A, B component and diluent is 4:1:1.8.
Further, the dispersant by nano silicon dioxide, carboxymethyl chitosan and sodium lignin sulfonate by weight
1-3:2-4:12-15 is formed.
Further, the dispersant by nano silicon dioxide, carboxymethyl chitosan and sodium lignin sulfonate by weight
Than 2:3:14 compositions.
Further, the grain size of the titanium dioxide is 60-100nm, and the titanium dioxide is by anatase thpe white powder and rutile
Type titanium dioxide is by weight 10-15:1-3 is formed.
Further, the grain size of the titanium dioxide is 80nm, and the titanium dioxide is by anatase thpe white powder and rutile-type
Titanium dioxide is by weight 13:2 compositions.
Further, the organoclay by organic attapulgite and organobentonite by weight 5-8:1-3 is formed.
Further, the organoclay is by organic attapulgite and organobentonite by weight 7:2 compositions.
Further, the catalyst by double -2 ethyl hexanoic acid tin and Mono-n-butyltin by weight 4-6:11-15 groups
Into.
Further, the catalyst is by double -2 ethyl hexanoic acid tin and Mono-n-butyltin by weight 5:12 compositions.
The preparation method of the coupling agent modified nano kaoline of siloxy group is：
(1) nano kaoline is taken, is added in by absolute ethyl alcohol and water by volume 5:In the mixed liquor of 1 composition, make nanometer height
Mass concentration of the ridge soil in mixed liquor is 12%, obtains slurries；
(2) siloxy group coupling agent is taken, the amount of above-mentioned siloxy group coupling agent is step (1) the nano kaoline weight
8%, add in the ethanol solution that volume fraction is 95%, it is 25% to make the mass fraction of siloxy group coupling agent in solution, is used
The pH of second acid-conditioning solution is 4, stirs 1h, obtains hydrolyzate；
(3) slurries obtained by step (1) are heated to 85 DEG C, add in hydrolyzate obtained by step (2), reaction time 2h, instead
Answer product through filter, wash, dry, grind to get.
The preparation method of the coupling agent modified nano barium sulfate of siloxy group is：Nano barium sulfate is taken, is added in by anhydrous
Second alcohol and water by volume 4:In the mixed liquor of 1 composition, it is 15% to make mass concentration of the nano barium sulfate in mixed liquor, with
The speed stirring of 5000r/min, mixing time speed is 1min, is heated to 75 DEG C, adjusting rotating speed is 2500r/min, adds in matter
Measure a concentration of 10% siloxy group coupling agent Z-6040, react 2h, through filter, wash, dry, grind to get.
The preparation method of the modified high-molecular polyisocyanate curing agent is：By hexamethylene diisocyanate trimer plus
Enter into the four-hole bottle equipped with condenser, blender, thermometer and dropping funel, add in dibutyl tin dilaurate, dibutyl
The amount of tin dilaurate tin is the 3% of above-mentioned hexamethylene diisocyanate trimer weight, is heated to 65 DEG C, is stirred with 800r/min
Mix, drop evenly poly glycol monomethyl ether, time for adding 1h, the reaction was continued after being added dropwise to complete 2h to get.
In addition, the present invention also provides the preparation method of very fast automobile multifunctional floating coating, step is as follows：
S1 put into successively formula ratio it is ultrafast do hyperbranched type acrylic resin, activation low-molecular-weight resin, butyl acetate,
It after dispersant, is stirred with the rotating speed of 300-600r/min, mixing time 5-10min, adds in the activation siloxanes of formula ratio
Base coupling agent is stirred, mixing time 5-10min with the rotating speed of 300-600r/min, sequentially adds the siloxy group of formula ratio
The coupling agent modified nano barium sulfate of coupling agent modified nano kaoline, superfine talcum powder, siloxy group, titanium dioxide, organoclay, with
The speed of 900-1200r/min is sanded, and feed rate is controlled in 10-15L/min, and sand milling temperature is made to be maintained at 60 DEG C hereinafter, sand
Fineness is milled to as 35 μm hereinafter, obtaining component A；
S2 adds in modified high-molecular polyisocyanate curing agent, the butyl acetate of formula ratio, later under 300-600r/min
It is stirred 20 minutes under 600-900r/min, obtains B component；
S3 by component A, B component and diluent mixing to get.
Preferably, the step S1 is stirred with the rotating speed of 350-500r/min, mixing time 6-8min, adds in formula ratio
Activation siloxy group coupling agent, stirred with the rotating speed of 350-500r/min, mixing time 6-8min.
Preferably, the step S1 is sanded with the speed of 1000-1150r/min, and feed rate is controlled in 12-14L/min.
Preferably, the step S2 adds in the modified high-molecular polyisocyanate curing of formula ratio under 400-500r/min
Agent, butyl acetate stir under 700-850r/min later.
It is further preferred that the step S1 is stirred with the rotating speed of 450r/min, mixing time 7min adds in formula ratio
Siloxy group coupling agent is activated, is stirred with the rotating speed of 450r/min, mixing time 7min.
It is further preferred that the step S1 is sanded with the speed of 1050r/min, feed rate is controlled in 13L/min.
It is further preferred that the step S2 under 450r/min, adds in the modified high-molecular polyisocyanate curing of formula ratio
Agent, butyl acetate stir under 800r/min later.
At present, it can be ground within 20 minutes in floating coating on the market, 3-4 grades of adhesive force, adhesive force can reach 1 grade of floating coating
The polishing time will have the shortcomings that polishing time is long, and adhesive force is low at 1 hour.Hyperbranched type third is done present invention employs ultrafast
Olefin(e) acid resin and activation low-molecular-weight resin, are crosslinked using modified high-molecular polyisocyanate curing agent, and by double -2- second
Under the action of the catalyst of base caproic acid tin and Mono-n-butyltin by certain weight ratio composition, the anti-of-OH and-NCO is greatly improved
Crosslinking rate is answered, so as to quickly polish.In addition, low-molecular-weight resin and activation siloxy group idol are activated in the present invention
Join the addition of agent, adhesive force can be improved.
At present, existing Automotive Primer Surfacer is more single there are function, it is impossible to carry out full vehicle spraying and exempt from polishing spray finishing coat
The defects of operation.The present invention presses certain weight ratio group using by nano silicon dioxide, carboxymethyl chitosan and sodium lignin sulfonate
Into dispersant, dispersibility, wetability and compatibility can not only be enhanced, and the full vehicle spray of floating coating obtained can be improved
Apply and exempt to grind the effect of topcoating.In addition to this, the coupling agent modified nano kaoline tool of siloxy group added in the present invention
There are good stability, the transparency, the good dispersion in floating coating can enhance full vehicle spraying and exempt to grind the light of topcoating
Slip, so as to improve the full vehicle spraying of floating coating obtained and exempt from the effect of mill topcoating.
Compared with prior art, very fast automobile multifunctional floating coating provided by the invention has the advantage that：
(1) at room temperature, spraying can polish very fast automobile multifunctional floating coating provided by the invention for 20 minutes, in steel
Plate, zine plate are respectively provided with good adhesive force on aluminium sheet.
(2) very fast automobile multifunctional floating coating provided by the invention is vdiverse in function, can carry out full vehicle spraying and exempt to polish
Spray paint operates.
Specific embodiment
The following describes the present invention further through the description of specific embodiments, but this is not the limit to the present invention
System, those skilled in the art's basic thought according to the present invention can make various modifications or improvements, but without departing from this
The basic thought of invention, is all within the scope of the present invention.
In the present invention, ultrafast dry hyperbranched type acrylic resin is purchased from Jiangyin mole new chemical materials Co., Ltd, type
Number MR-2280；Activation low-molecular-weight resin is purchased from Xinhua Resin Factory, Shanghai, the trade mark：634(E-42)；Superfine talcum powder can
Purchased from Guang Yuan Ultramicro-powders Co., Ltd of Jiangyin City, 5000 mesh of specification；Nano barium sulfate is purchased from Foshan City and suddenly shakes the limited public affairs of chemical industry
Department, 12500 mesh of specification；Nano silicon dioxide is purchased from hundred million peak Chemical Industry Science Co., Ltd of Guangzhou, 5000 mesh of specification；Carboxymethyl shell
Glycan is purchased from Xi'an Tian Guangyuan bio tech ltd, model TGY-002；Activation siloxy group coupling agent is purchased from extensively
State dawn coupling agent Co., Ltd, model：SI-69；Organobentonite is purchased from Lingshou County Li Hua mineral products processings factory, specification
200 mesh；Organic attapulgite is purchased from Ningbo Canghai New Material Development Co., Ltd., model：Deep blue sea；Nano kaoline is commercially available
From Guangzhou ChangYu Chemical Co., Ltd.s, 10000 mesh of specification.
Embodiment 1, a kind of very fast automobile multifunctional floating coating
The very fast automobile multifunctional floating coating is made of component A, B component and diluent, wherein, the component A is by such as
Lower component and its parts by weight composition：It is ultrafast to do hyperbranched 30 parts of type acrylic resin, activate 1 part of low-molecular-weight resin, second
5 parts of acid butyl ester, 0.1 part of dispersant, 5 parts of the coupling agent modified nano kaoline of siloxy group, 5 parts of superfine talcum powder, siloxy group
Coupling agent modified 3 parts of nano barium sulfate, 1 part of activation siloxy group coupling agent, 8 parts of titanium dioxide, 0.3 part of organoclay；Described point
Powder is by nano silicon dioxide, carboxymethyl chitosan and sodium lignin sulfonate by weight 1:4:15 compositions；The titanium dioxide
Grain size is 60nm, and the titanium dioxide is by anatase thpe white powder and rutile type titanium white by weight 10:3 compositions；It is described organic
Soil is by organic attapulgite and organobentonite by weight 5:3 compositions.
The B component is made of following component and its parts by weight：30 parts of modified high-molecular polyisocyanate curing agent, acetic acid
20 parts of butyl ester；
The diluent is made of following component and its parts by weight：1 part of catalyst, 95 parts of butyl acetate；The catalysis
Agent is by double -2 ethyl hexanoic acid tin and Mono-n-butyltin by weight 4:15 compositions；
The weight proportion of the component A, B component and diluent is 4:1:1.5.
The preparation method of the coupling agent modified nano kaoline of siloxy group is：
(1) nano kaoline is taken, is added in by absolute ethyl alcohol and water by volume 5:In the mixed liquor of 1 composition, make nanometer height
Mass concentration of the ridge soil in mixed liquor is 12%, obtains slurries；
(2) siloxy group coupling agent is taken, the amount of above-mentioned siloxy group coupling agent is step (1) the nano kaoline weight
8%, add in the ethanol solution that volume fraction is 95%, it is 25% to make the mass fraction of siloxy group coupling agent in solution, is used
The pH of second acid-conditioning solution is 4, stirs 1h, obtains hydrolyzate；
(3) slurries obtained by step (1) are heated to 85 DEG C, add in hydrolyzate obtained by step (2), reaction time 2h, instead
Answer product through filter, wash, dry, grind to get.
The preparation method of the coupling agent modified nano barium sulfate of siloxy group is：Nano barium sulfate is taken, is added in by anhydrous
Second alcohol and water by volume 4:In the mixed liquor of 1 composition, it is 15% to make mass concentration of the nano barium sulfate in mixed liquor, with
The speed stirring of 5000r/min, mixing time speed is 1min, is heated to 75 DEG C, adjusting rotating speed is 2500r/min, adds in matter
Measure a concentration of 10% siloxy group coupling agent Z-6040, react 2h, through filter, wash, dry, grind to get.
The preparation method of the modified high-molecular polyisocyanate curing agent is：By hexamethylene diisocyanate trimer plus
Enter into the four-hole bottle equipped with condenser, blender, thermometer and dropping funel, add in dibutyl tin dilaurate, dibutyl
The amount of tin dilaurate tin is the 3% of above-mentioned hexamethylene diisocyanate trimer weight, is heated to 65 DEG C, is stirred with 800r/min
Mix, drop evenly poly glycol monomethyl ether, time for adding 1h, the reaction was continued after being added dropwise to complete 2h to get.
The preparation method of the very fast automobile multifunctional floating coating, includes the following steps：
S1 put into successively formula ratio it is ultrafast do hyperbranched type acrylic resin, activation low-molecular-weight resin, butyl acetate,
It after dispersant, is stirred with the rotating speed of 300r/min, mixing time 5min, adds in the activation siloxy group coupling of formula ratio
Agent is stirred, mixing time 5min with the rotating speed of 300r/min, sequentially adds the coupling agent modified nanometer of siloxy group of formula ratio
The coupling agent modified nano barium sulfate of kaolin, superfine talcum powder, siloxy group, titanium dioxide, organoclay, with the speed of 900r/min
It is sanded, feed rate is controlled in 10L/min, and sand milling temperature is made to be maintained at 60 DEG C hereinafter, being sanded to fineness as 35 μm hereinafter, obtaining
Component A；
S2 adds in modified high-molecular polyisocyanate curing agent, the butyl acetate of formula ratio, Zhi Hou under 300r/min
It is stirred 20 minutes under 600r/min, obtains B component；
S3 by component A, B component and diluent mixing to get.
Embodiment 2, a kind of very fast automobile multifunctional floating coating
The very fast automobile multifunctional floating coating is made of component A, B component and diluent, wherein, the component A is by such as
Lower component and its parts by weight composition：It is ultrafast to do hyperbranched 50 parts of type acrylic resin, activate 3 parts of low-molecular-weight resin, second
10 parts of acid butyl ester, 0.6 part of dispersant, 15 parts of the coupling agent modified nano kaoline of siloxy group, 15 parts of superfine talcum powder, siloxanes
12 parts of the coupling agent modified nano barium sulfate of base, 3 parts of activation siloxy group coupling agent, 22 parts of titanium dioxide, 1 part of organoclay；It is described
Dispersant is by nano silicon dioxide, carboxymethyl chitosan and sodium lignin sulfonate by weight 3:2:12 compositions；The titanium dioxide
Grain size for 100nm, the titanium dioxide is by anatase thpe white powder and rutile type titanium white by weight 15:1 composition；It is described to have
Machine soil is by organic attapulgite and organobentonite by weight 8:1 composition.
The B component is made of following component and its parts by weight：60 parts of modified high-molecular polyisocyanate curing agent, acetic acid
50 parts of butyl ester；
The diluent is made of following component and its parts by weight：5 parts of catalyst, 100 parts of butyl acetate；The catalysis
Agent is by double -2 ethyl hexanoic acid tin and Mono-n-butyltin by weight 6:11 compositions；
The weight proportion of the component A, B component and diluent is 4:1:2.
It is the coupling agent modified nano kaoline of the siloxy group, the coupling agent modified nano barium sulfate of siloxy group, modified high
The preparation method of molecule polyisocyanate curing agent is similar to Example 1.
The preparation method of the very fast automobile multifunctional floating coating, includes the following steps：
S1 put into successively formula ratio it is ultrafast do hyperbranched type acrylic resin, activation low-molecular-weight resin, butyl acetate,
It after dispersant, is stirred with the rotating speed of 600r/min, mixing time 10min, adds in the activation siloxy group coupling of formula ratio
Agent is stirred, mixing time 10min with the rotating speed of 600r/min, and the siloxy group for sequentially adding formula ratio coupling agent modified is received
Rice kaolin, superfine talcum powder, the coupling agent modified nano barium sulfate of siloxy group, titanium dioxide, organoclay, with 1200r/min's
Speed is sanded, feed rate control in 15L/min, make sand milling temperature be maintained at 60 DEG C hereinafter, be sanded to fineness as 35 μm hereinafter,
Obtain component A；
S2 adds in modified high-molecular polyisocyanate curing agent, the butyl acetate of formula ratio, Zhi Hou under 600r/min
It is stirred 20 minutes under 900r/min, obtains B component；
S3 by component A, B component and diluent mixing to get.
Embodiment 3, a kind of very fast automobile multifunctional floating coating
The very fast automobile multifunctional floating coating is made of component A, B component and diluent, wherein, the component A is by such as
Lower component and its parts by weight composition：It is ultrafast to do hyperbranched 40 parts of type acrylic resin, 1.8 parts of low-molecular-weight resin is activated,
6 parts of butyl acetate, 0.3 part of dispersant, 9 parts of the coupling agent modified nano kaoline of siloxy group, 10 parts of superfine talcum powder, siloxanes
8 parts of the coupling agent modified nano barium sulfate of base, 1 part of activation siloxy group coupling agent, 15 parts of titanium dioxide, 0.5 part of organoclay；It is described
Dispersant is by nano silicon dioxide, carboxymethyl chitosan and sodium lignin sulfonate by weight 2:3:14 compositions；The titanium dioxide
Grain size for 80nm, the titanium dioxide is by anatase thpe white powder and rutile type titanium white by weight 13:2 compositions；It is described to have
Machine soil is by organic attapulgite and organobentonite by weight 7:2 compositions；
The B component is made of following component and its parts by weight：46 parts of modified high-molecular polyisocyanate curing agent, acetic acid
42 parts of butyl ester；
The diluent is made of following component and its parts by weight：1 part of catalyst, 96 parts of butyl acetate；The catalysis
Agent is by double -2 ethyl hexanoic acid tin and Mono-n-butyltin by weight 5:12 compositions.
The weight proportion of the component A, B component and diluent is 4:1:1.6.
It is the coupling agent modified nano kaoline of the siloxy group, the coupling agent modified nano barium sulfate of siloxy group, modified high
The preparation method of molecule polyisocyanate curing agent is similar to Example 1.
The preparation method of the very fast automobile multifunctional floating coating, includes the following steps：
S1 put into successively formula ratio it is ultrafast do hyperbranched type acrylic resin, activation low-molecular-weight resin, butyl acetate,
It after dispersant, is stirred with the rotating speed of 450r/min, mixing time 7min, adds in the activation siloxy group coupling of formula ratio
Agent is stirred, mixing time 7min with the rotating speed of 450r/min, sequentially adds the coupling agent modified nanometer of siloxy group of formula ratio
The coupling agent modified nano barium sulfate of kaolin, superfine talcum powder, siloxy group, titanium dioxide, organoclay, with the speed of 1050r/min
It spends and is sanded, feed rate is controlled in 13L/min, and sand milling temperature is made to be maintained at 60 DEG C hereinafter, being sanded to fineness as 35 μm hereinafter, obtaining
To component A；
S2 adds in modified high-molecular polyisocyanate curing agent, the butyl acetate of formula ratio, Zhi Hou under 450r/min
It is stirred 20 minutes under 800r/min, obtains B component；
S3 by component A, B component and diluent mixing to get.
Embodiment 4, a kind of very fast automobile multifunctional floating coating
The very fast automobile multifunctional floating coating is made of component A, B component and diluent, wherein, the component A is by such as
Lower component and its parts by weight composition：It is ultrafast to do hyperbranched 49 parts of type acrylic resin, 2.5 parts of low-molecular-weight resin is activated,
8 parts of butyl acetate, 0.6 part of dispersant, 13 parts of the coupling agent modified nano kaoline of siloxy group, 14 parts of superfine talcum powder, silica
12 parts of the coupling agent modified nano barium sulfate of alkyl, 2 parts of activation siloxy group coupling agent, 20 parts of titanium dioxide, 0.9 part of organoclay；
The dispersant is by nano silicon dioxide, carboxymethyl chitosan and sodium lignin sulfonate by weight 2:3:14 compositions；The titanium
The grain size of white powder is 80nm, and the titanium dioxide is by anatase thpe white powder and rutile type titanium white by weight 13:2 compositions；Institute
Organoclay is stated by organic attapulgite and organobentonite by weight 7:2 compositions；
The B component is made of following component and its parts by weight：54 parts of modified high-molecular polyisocyanate curing agent, acetic acid
49 parts of butyl ester；
The diluent is made of following component and its parts by weight：3 parts of catalyst, 99 parts of butyl acetate；The catalysis
Agent is by double -2 ethyl hexanoic acid tin and Mono-n-butyltin by weight 5:12 compositions.
The weight proportion of the component A, B component and diluent is 4:1:2.
It is the coupling agent modified nano kaoline of the siloxy group, the coupling agent modified nano barium sulfate of siloxy group, modified high
The preparation method of molecule polyisocyanate curing agent is similar to Example 1.
The preparation method of the very fast automobile multifunctional floating coating is similar to Example 3.
Embodiment 5, a kind of very fast automobile multifunctional floating coating
The very fast automobile multifunctional floating coating is made of component A, B component and diluent, wherein, the component A is by such as
Lower component and its parts by weight composition：It is ultrafast to do hyperbranched 48 parts of type acrylic resin, 2.2 parts of low-molecular-weight resin is activated,
7 parts of butyl acetate, 0.5 part of dispersant, 12 parts of the coupling agent modified nano kaoline of siloxy group, 12 parts of superfine talcum powder, silica
11 parts of the coupling agent modified nano barium sulfate of alkyl, 1 part of activation siloxy group coupling agent, 18 parts of titanium dioxide, 0.7 part of organoclay；
The dispersant is by nano silicon dioxide, carboxymethyl chitosan and sodium lignin sulfonate by weight 2:3:14 compositions；The titanium
The grain size of white powder is 80nm, and the titanium dioxide is by anatase thpe white powder and rutile type titanium white by weight 13:2 compositions；Institute
Organoclay is stated by organic attapulgite and organobentonite by weight 7:2 compositions；
The B component is made of following component and its parts by weight：52 parts of modified high-molecular polyisocyanate curing agent, acetic acid
48 parts of butyl ester；
The diluent is made of following component and its parts by weight：2 parts of catalyst, 98 parts of propene carbonate；It is described to urge
Agent is by double -2 ethyl hexanoic acid tin and Mono-n-butyltin by weight 5:12 compositions.
It is the coupling agent modified nano kaoline of the siloxy group, the coupling agent modified nano barium sulfate of siloxy group, modified high
The preparation method of molecule polyisocyanate curing agent is similar to Example 1.
The preparation method of the very fast automobile multifunctional floating coating is similar to Example 3.
Comparative example 1, a kind of very fast automobile multifunctional floating coating
The very fast automobile multifunctional floating coating is made of component A, B component and diluent, wherein, the component A is by such as
Lower component and its parts by weight composition：It is ultrafast to do hyperbranched 48 parts of type acrylic resin, 2.2 parts of low-molecular-weight resin is activated,
7 parts of butyl acetate, 0.5 part of dispersant, 12 parts of the coupling agent modified nano kaoline of siloxy group, 12 parts of superfine talcum powder, silica
11 parts of the coupling agent modified nano barium sulfate of alkyl, 1 part of activation siloxy group coupling agent, 18 parts of titanium dioxide, 0.7 part of organoclay；
The dispersant is by nano silicon dioxide, carboxymethyl chitosan and sodium lignin sulfonate by weight 2:3:14 compositions；The titanium
The grain size of white powder is 80nm, and the titanium dioxide is by anatase thpe white powder and rutile type titanium white by weight 13:2 compositions；Institute
Organoclay is stated by organic attapulgite and organobentonite by weight 7:2 compositions；
The B component is made of following component and its parts by weight：52 parts of modified high-molecular polyisocyanate curing agent, acetic acid
48 parts of butyl ester；
The diluent is made of following component and its parts by weight：2 parts of catalyst, 98 parts of propene carbonate；It is described to urge
Agent is by double -2 ethyl hexanoic acid tin and Mono-n-butyltin by weight 1:1 composition.
It is the coupling agent modified nano kaoline of the siloxy group, the coupling agent modified nano barium sulfate of siloxy group, modified high
The preparation method of molecule polyisocyanate curing agent is similar to Example 1.
The preparation method of the very fast automobile multifunctional floating coating is similar to Example 3.
With embodiment 5 difference lies in, the catalyst by double -2 ethyl hexanoic acid tin and Mono-n-butyltin by weight
1:1 composition.
Comparative example 2, a kind of very fast automobile multifunctional floating coating
The very fast automobile multifunctional floating coating is made of component A, B component and diluent, wherein, the component A is by such as
Lower component and its parts by weight composition：It is ultrafast to do hyperbranched 48 parts of type acrylic resin, 2.2 parts of low-molecular-weight resin is activated,
7 parts of butyl acetate, 0.5 part of dispersant, 12 parts of the coupling agent modified nano kaoline of siloxy group, 12 parts of superfine talcum powder, silica
11 parts of the coupling agent modified nano barium sulfate of alkyl, 1 part of activation siloxy group coupling agent, 18 parts of titanium dioxide, 0.7 part of organoclay；
The dispersant is by nano silicon dioxide, carboxymethyl chitosan and sodium lignin sulfonate by weight 2:3:14 compositions；The titanium
The grain size of white powder is 80nm, and the titanium dioxide is by anatase thpe white powder and rutile type titanium white by weight 13:2 compositions；Institute
Organoclay is stated by organic attapulgite and organobentonite by weight 7:2 compositions；
The B component is made of following component and its parts by weight：52 parts of modified high-molecular polyisocyanate curing agent, acetic acid
48 parts of butyl ester；
The diluent is made of following component and its parts by weight：2 parts of catalyst, 98 parts of propene carbonate；It is described to urge
Agent is Mono-n-butyltin.
It is the coupling agent modified nano kaoline of the siloxy group, the coupling agent modified nano barium sulfate of siloxy group, modified high
The preparation method of molecule polyisocyanate curing agent is similar to Example 1.
The preparation method of the very fast automobile multifunctional floating coating is similar to Example 3.
Difference lies in the catalyst is Mono-n-butyltin with embodiment 5.
Comparative example 3, a kind of very fast automobile multifunctional floating coating
The very fast automobile multifunctional floating coating is made of component A, B component and diluent, wherein, the component A is by such as
Lower component and its parts by weight composition：It is ultrafast to do hyperbranched 48 parts of type acrylic resin, 3.2 parts of low-molecular-weight resin is activated,
7 parts of butyl acetate, 0.5 part of dispersant, 12 parts of the coupling agent modified nano kaoline of siloxy group, 12 parts of superfine talcum powder, silica
11 parts of the coupling agent modified nano barium sulfate of alkyl, 18 parts of titanium dioxide, 0.7 part of organoclay；The dispersant by nano silicon dioxide,
Carboxymethyl chitosan and sodium lignin sulfonate are by weight 2:3:14 compositions；The grain size of the titanium dioxide be 80nm, the titanium white
Powder is by anatase thpe white powder and rutile type titanium white by weight 13:2 compositions；The organoclay is by organic attapulgite and has
Machine bentonite is by weight 7:2 compositions；
The B component is made of following component and its parts by weight：52 parts of modified high-molecular polyisocyanate curing agent, acetic acid
48 parts of butyl ester；
The diluent is made of following component and its parts by weight：2 parts of catalyst, 98 parts of propene carbonate；It is described to urge
Agent is by double -2 ethyl hexanoic acid tin and Mono-n-butyltin by weight 5:12 compositions.
It is the coupling agent modified nano kaoline of the siloxy group, the coupling agent modified nano barium sulfate of siloxy group, modified high
The preparation method of molecule polyisocyanate curing agent is similar to Example 1.
The preparation method of the very fast automobile multifunctional floating coating is similar to Example 3.
Difference lies in become 3.2 parts from 2.2 parts by the parts by weight for activating low-molecular-weight resin, incite somebody to action with embodiment 5
The parts by weight of activation siloxy group coupling agent become 0 part from 1 part.
Comparative example 4, a kind of very fast automobile multifunctional floating coating
The very fast automobile multifunctional floating coating is made of component A, B component and diluent, wherein, the component A is by such as
Lower component and its parts by weight composition：It is ultrafast to do hyperbranched 48 parts of type acrylic resin, 2.2 parts of low-molecular-weight resin is activated,
7 parts of butyl acetate, 0.5 part of dispersant, 12 parts of the coupling agent modified nano kaoline of siloxy group, 12 parts of superfine talcum powder, silica
11 parts of the coupling agent modified nano barium sulfate of alkyl, 1 part of activation siloxy group coupling agent, 18 parts of titanium dioxide, 0.7 part of organoclay；
The dispersant is by nano silicon dioxide and sodium lignin sulfonate by weight 2:14 compositions；The grain size of the titanium dioxide is
80nm, the titanium dioxide is by anatase thpe white powder and rutile type titanium white by weight 13:2 compositions；The organoclay is by having
Machine attapulgite and organobentonite are by weight 7:2 compositions；
The B component is made of following component and its parts by weight：52 parts of modified high-molecular polyisocyanate curing agent, acetic acid
48 parts of butyl ester；
The diluent is made of following component and its parts by weight：2 parts of catalyst, 98 parts of propene carbonate；It is described to urge
Agent is by double -2 ethyl hexanoic acid tin and Mono-n-butyltin by weight 5:12 compositions.
It is the coupling agent modified nano kaoline of the siloxy group, the coupling agent modified nano barium sulfate of siloxy group, modified high
The preparation method of molecule polyisocyanate curing agent is similar to Example 1.
The preparation method of the very fast automobile multifunctional floating coating is similar to Example 3.
Difference lies in the dispersant is by nano silicon dioxide and sodium lignin sulfonate by weight 2 with embodiment 5:
14 compositions.
Comparative example 5, a kind of very fast automobile multifunctional floating coating
The very fast automobile multifunctional floating coating is made of component A, B component and diluent, wherein, the component A is by such as
Lower component and its parts by weight composition：It is ultrafast to do hyperbranched 48 parts of type acrylic resin, 2.2 parts of low-molecular-weight resin is activated,
7 parts of butyl acetate, 0.5 part of dispersant, 12 parts of the coupling agent modified nano kaoline of siloxy group, 12 parts of superfine talcum powder, silica
11 parts of the coupling agent modified nano barium sulfate of alkyl, 1 part of activation siloxy group coupling agent, 18 parts of titanium dioxide, 0.7 part of organoclay；
The dispersant is by nano silicon dioxide, carboxymethyl chitosan and sodium lignin sulfonate by weight 1:1:1 composition；The titanium white
The grain size of powder is 80nm, and the titanium dioxide is by anatase thpe white powder and rutile type titanium white by weight 13:2 compositions；It is described
Organoclay is by organic attapulgite and organobentonite by weight 7:2 compositions；
The B component is made of following component and its parts by weight：52 parts of modified high-molecular polyisocyanate curing agent, acetic acid
48 parts of butyl ester；
The diluent is made of following component and its parts by weight：2 parts of catalyst, 98 parts of propene carbonate；It is described to urge
Agent is by double -2 ethyl hexanoic acid tin and Mono-n-butyltin by weight 5:12 compositions.
It is the coupling agent modified nano kaoline of the siloxy group, the coupling agent modified nano barium sulfate of siloxy group, modified high
The preparation method of molecule polyisocyanate curing agent is similar to Example 1.
The preparation method of the very fast automobile multifunctional floating coating is similar to Example 3.
Difference lies in the dispersant is by nano silicon dioxide, carboxymethyl chitosan and lignin sulfonic acid with embodiment 5
Sodium is by weight 1:1:1 composition.
Comparative example 6, a kind of very fast automobile multifunctional floating coating
The very fast automobile multifunctional floating coating is made of component A, B component and diluent, wherein, the component A is by such as
Lower component and its parts by weight composition：It is ultrafast to do hyperbranched 48 parts of type acrylic resin, 2.2 parts of low-molecular-weight resin is activated,
7 parts of butyl acetate, 0.5 part of dispersant, 12 parts of the coupling agent modified nano kaoline of siloxy group, 12 parts of superfine talcum powder, silica
11 parts of the coupling agent modified nano barium sulfate of alkyl, 1 part of activation siloxy group coupling agent, 18 parts of titanium dioxide, 0.7 part of organoclay；
The dispersant is by nano silicon dioxide, carboxymethyl chitosan and sodium lignin sulfonate by weight 2:3:14 compositions；The titanium
The grain size of white powder is 80nm, and the titanium dioxide is by anatase thpe white powder and rutile type titanium white by weight 13:2 compositions；Institute
Organoclay is stated by organic attapulgite and organobentonite by weight 7:2 compositions；
The B component is made of following component and its parts by weight：52 parts of modified high-molecular polyisocyanate curing agent, acetic acid
48 parts of butyl ester；
The diluent is made of following component and its parts by weight：2 parts of catalyst, 98 parts of propene carbonate；It is described to urge
Agent is by double -2 ethyl hexanoic acid tin and Mono-n-butyltin by weight 5:12 compositions.
It is the coupling agent modified nano kaoline of the siloxy group, the coupling agent modified nano barium sulfate of siloxy group, modified high
The preparation method of molecule polyisocyanate curing agent is similar to Example 1.
The preparation method of the very fast automobile multifunctional floating coating is similar to Example 3.
With embodiment 5 difference lies in, in the preparation of the coupling agent modified nano kaoline of siloxy group, step (1)
It adds in absolute ethyl alcohol, it is 12% to make mass concentration of the nano kaoline in absolute ethyl alcohol.
The grinability test of test example one, very fast automobile multifunctional floating coating
1st, test material：Embodiment 1, embodiment 2, embodiment 3, embodiment 4, embodiment 5, comparative example 1 and comparative example 2 are made
The very fast automobile multifunctional floating coating obtained.
2nd, test method：The grinability of very fast automobile multifunctional floating coating is carried out with reference to GB/T 1728, GB/T 1770
It measures.
3rd, result of the test：Result of the test is as shown in table 1.
Table 1：The grinability test result of very fast automobile multifunctional floating coating
It can be obtained by table 1, very fast automobile multifunctional floating coating produced by the present invention time that can polish is short, has good
Grinability.
The adhesive force test of test example two, very fast automobile multifunctional floating coating
1st, test material：It is embodiment 1, embodiment 2, embodiment 3, embodiment 4, embodiment 5, very fast made from comparative example 3
Automobile multifunctional floating coating.
2nd, test method：With reference to GB/T 9286 to attachment of the very fast automobile multifunctional floating coating to zine plate, steel plate, aluminium sheet
Power is tested.
3rd, result of the test：Result of the test is as shown in table 2.
Table 2：The adhesive force test result of very fast automobile multifunctional floating coating
It can be obtained by table 2, very fast automobile multifunctional floating coating produced by the present invention is respectively provided with zine plate, steel plate, aluminium sheet
Stronger adhesive force, wherein, the adhesive force of embodiment 5 is most strong, is highly preferred embodiment of the present invention.Compared with comparative example 3, implement
The adhesive force of example 5 is stronger.
Test example three, very fast automobile multifunctional floating coating full vehicle spraying and exempt from grind topcoating effect
1st, test material：It is embodiment 1, embodiment 2, embodiment 3, embodiment 4, embodiment 5, comparative example 4, comparative example 5, right
Very fast automobile multifunctional floating coating made from ratio 6.
2nd, test method：
(1) measure of merit of full vehicle spraying：Vehicle is sprayed, is sprayed by 6 plates, observes surface smoothness and roll line
Whether transition smoothes out.
(2) exempt from the measure of merit of mill topcoating：Spray viscosity is 11-13 seconds, and finishing coat is sprayed in spraying after ten minutes, after dry
Whether observation finishing coat shrinks.
3rd, result of the test：
Result of the test is as shown in table 3.
Table 3：The full vehicle of very fast automobile multifunctional floating coating sprays and exempts to grind topcoating effect
It can be obtained by table 3, very fast automobile multifunctional floating coating produced by the present invention has good full vehicle spraying effect
With exempt to grind topcoating effect, this explanation, very fast automobile multifunctional floating coating produced by the present invention can both carry out full vehicle spraying, also may be used
Exempt from mill topcoating, and the effect of the full vehicle spraying of embodiment 5 and exempt to grind topcoating effect it is best, to be of the invention
Most preferred embodiment.Compared with comparative example 4, comparative example 5, comparative example 6, the full vehicle of embodiment 5 sprays and exempts to grind topcoating effect more
It is good.
Claims (10)
1. a kind of very fast automobile multifunctional floating coating, which is characterized in that it is made of component A, B component and diluent, wherein, it is described
Component A is made of following component and its parts by weight：It is ultrafast to do hyperbranched 30-50 parts of type acrylic resin, activate low molecule
Measure 1-3 parts of resin, 5-10 parts of butyl acetate, 0.1-0.6 parts of dispersant, the coupling agent modified nano kaoline 5-15 of siloxy group
Part, 5-15 parts of superfine talcum powder, coupling agent modified nano barium sulfate 3-12 parts of siloxy group, activation siloxy group coupling agent 1-
3 parts, 8-22 parts of titanium dioxide, 0.3-1 parts of organoclay；
The B component is made of following component and its parts by weight：30-60 parts of modified high-molecular polyisocyanate curing agent, acetic acid
20-50 parts of butyl ester；
The diluent is made of following component and its parts by weight：1-5 parts of catalyst, 95-100 parts of butyl acetate；The A groups
Point, the weight proportion of B component and diluent be 4:1:1.5-2.
2. very fast automobile multifunctional floating coating as described in claim 1, which is characterized in that the component A by following component and
Its parts by weight forms：It is ultrafast to do hyperbranched 40-49 parts of type acrylic resin, activate 1.8-2.5 parts of low-molecular-weight resin, second
6-8 parts of acid butyl ester, 0.3-0.6 parts of dispersant, coupling agent modified nano kaoline 9-13 parts of siloxy group, superfine talcum powder 10-
14 parts, coupling agent modified nano barium sulfate 8-12 parts of siloxy group activates 1-2 parts of siloxy group coupling agent, titanium dioxide 15-20
Part, 0.5-0.9 parts of organoclay；
The B component is made of following component and its parts by weight：46-54 parts of modified high-molecular polyisocyanate curing agent, acetic acid
42-49 parts of butyl ester；
The diluent is made of following component and its parts by weight：1-3 parts of catalyst, 96-99 parts of propene carbonate；The A
The weight proportion of component, B component and diluent is 4:1:1.6-2.
3. very fast automobile multifunctional floating coating as described in claim 1, which is characterized in that the component A by following component and
Its parts by weight forms：It is ultrafast to do hyperbranched 48 parts of type acrylic resin, activate 2.2 parts of low-molecular-weight resin, butyl acetate 7
Part, 0.5 part of dispersant, 12 parts of the coupling agent modified nano kaoline of siloxy group, 12 parts of superfine talcum powder, siloxy group coupling agent
11 parts of modified nano-barium sulfate, 1 part of activation siloxy group coupling agent, 18 parts of titanium dioxide, 0.7 part of organoclay；
The B component is made of following component and its parts by weight：52 parts of modified high-molecular polyisocyanate curing agent, butyl acetate
48 parts；
The diluent is made of following component and its parts by weight：2 parts of catalyst, 98 parts of propene carbonate；
The weight proportion of the component A, B component and diluent is 4:1:1.8.
4. such as the very fast automobile multifunctional floating coating of claim 1-3 any one of them, which is characterized in that the dispersant is by receiving
Rice silica, carboxymethyl chitosan and sodium lignin sulfonate are by weight 1-3:2-4:12-15 is formed.
5. very fast automobile multifunctional floating coating as claimed in claim 4, which is characterized in that the dispersant is by nanometer titanium dioxide
Silicon, carboxymethyl chitosan and sodium lignin sulfonate are by weight 2:3:14 compositions.
6. such as the very fast automobile multifunctional floating coating of claim 1-3 any one of them, which is characterized in that the catalyst by
Double -2 ethyl hexanoic acid tin and Mono-n-butyltin are by weight 4-6:11-15 is formed.
7. very fast automobile multifunctional floating coating as claimed in claim 6, which is characterized in that the catalyst is by double -2- ethyls
Caproic acid tin and Mono-n-butyltin are by weight 5:12 compositions.
8. such as the very fast automobile multifunctional floating coating of claim 1-3 any one of them, which is characterized in that the modified high-molecular
The preparation method of polyisocyanate curing agent is：By hexamethylene diisocyanate trimer be added to equipped with condenser, blender,
In the four-hole bottle of thermometer and dropping funel, dibutyl tin dilaurate is added in, the amount of dibutyl tin dilaurate is above-mentioned six
The 3% of methylene diisocyanate trimerization body weight, is heated to 65 DEG C, is stirred with 800r/min, drop evenly polyethyleneglycol
Methyl ether, time for adding 1h, after being added dropwise to complete the reaction was continued 2h to get.
9. such as the very fast automobile multifunctional floating coating of claim 1-3 any one of them, which is characterized in that the siloxy group is even
Joining agent modified Nano kleit preparation method is：
(1) nano kaoline is taken, is added in by absolute ethyl alcohol and water by volume 5:In the mixed liquor of 1 composition, make nano kaoline
Mass concentration in mixed liquor is 12%, obtains slurries；
(2) siloxy group coupling agent is taken, the amount of above-mentioned siloxy group coupling agent is step (1) the nano kaoline weight
8%, the ethanol solution that volume fraction is 95% is added in, the mass fraction for making siloxy group coupling agent in solution is 25%, uses second
The pH of acid-conditioning solution is 4, stirs 1h, obtains hydrolyzate；
(3) slurries obtained by step (1) are heated to 85 DEG C, add in hydrolyzate obtained by step (2), reaction time 2h, reaction production
Object through filter, wash, dry, grind to get.
10. such as the preparation method of the very fast automobile multifunctional floating coating of claim 1-9 any one of them, which is characterized in that packet
Include following steps：
S1 puts into the ultrafast dry hyperbranched type acrylic resin of formula ratio, activation low-molecular-weight resin, butyl acetate, dispersion successively
It after agent, is stirred with the rotating speed of 300-600r/min, mixing time 5-10min, the activation siloxy group for adding in formula ratio is even
Join agent, stirred with the rotating speed of 300-600r/min, mixing time 5-10min, sequentially add the siloxy group coupling of formula ratio
Agent modified Nano kaolin, superfine talcum powder, the coupling agent modified nano barium sulfate of siloxy group, titanium dioxide, organoclay, with 900-
The speed of 1200r/min is sanded, and feed rate is controlled in 10-15L/min, and sand milling temperature is made to be maintained at 60 DEG C hereinafter, being sanded extremely
Fineness is for 35 μm hereinafter, obtaining component A；
S2 adds in modified high-molecular polyisocyanate curing agent, the butyl acetate of formula ratio, Zhi Hou under 300-600r/min
It is stirred 20 minutes under 600-900r/min, obtains B component；
S3 by component A, B component and diluent mixing to get.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109054613A (en) * | 2018-07-26 | 2018-12-21 | 雅图高新材料有限公司 | Low VOC car repair floating coating of a kind of solvent type and preparation method thereof |
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| CN105820737A (en) * | 2016-05-04 | 2016-08-03 | 雅图高新材料有限公司 | Automobile water-based dual-component middle coating excellent in performance and preparation method thereof |
| CN107057545A (en) * | 2016-12-28 | 2017-08-18 | 中国海洋石油总公司 | Applied in aqueous dual-component acroleic acid polyurethane and preparation method thereof |
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| CN101469248A (en) * | 2007-12-30 | 2009-07-01 | 比亚迪股份有限公司 | Bicomponent polyurethane coating and preparation thereof |
| CN103756538A (en) * | 2013-12-12 | 2014-04-30 | 江苏普兰纳涂料有限公司 | Ultra-quick drying varnish used for automobiles |
| CN105820737A (en) * | 2016-05-04 | 2016-08-03 | 雅图高新材料有限公司 | Automobile water-based dual-component middle coating excellent in performance and preparation method thereof |
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Address after: The two district 529700 in Guangdong province Jiangmen city Heshan City, the ancient town of labor three industrial zone Applicant after: Yatu high tech materials Co., Ltd Address before: The two district 529700 in Guangdong province Jiangmen city Heshan City, the ancient town of labor three industrial zone Applicant before: GUANGDONG YATU CHEMICAL CO., LTD. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |