CN108795269A - A kind of ultraviolet light powder exterior coating and preparation method thereof - Google Patents
A kind of ultraviolet light powder exterior coating and preparation method thereof Download PDFInfo
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- CN108795269A CN108795269A CN201810831421.7A CN201810831421A CN108795269A CN 108795269 A CN108795269 A CN 108795269A CN 201810831421 A CN201810831421 A CN 201810831421A CN 108795269 A CN108795269 A CN 108795269A
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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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/004—Reflecting paints; Signal paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/32—Radiation-absorbing paints
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention discloses a kind of ultraviolet light powder exterior coatings, are related to technical field of coatings, which includes the raw material of following parts by weight：55-70 parts of polyurethane, 20-30 parts of bibasic ethylene propylene rubber, 8-15 parts of titanium dioxide, 15-25 parts of compounded mix, 5-10 parts of auxiliary agent, 6-10 parts of nano silicon dioxide；The preparation method of the exterior coating includes mixing, melting extrusion, slice attrition grinding step, which can effectively prevent the destruction of ultraviolet light External Wall coating, promote the service life of exterior coating.
Description
Technical field
The invention belongs to technical field of coatings, and in particular to a kind of ultraviolet light powder exterior coating and preparation method thereof.
Background technology
With the development of building trade, the demand industry to coating is more and more, and coating is to be coated in body surface, forms one
Determine the continuous film of intensity and hardness.
Exterior coating contributes to be applied on skin and forms firm protective film, plays protection building,
And play the role of decoration, exterior coating can be irradiated by ultraviolet light for a long time, and External Wall coating causes to corrode, and falls
Color, and influence its service life.
The Chinese invention patent application of Publication No. CN107936745A discloses a kind of building with anti-ultraviolet property
Exterior wall heat-insulating paint is built, using modified acrylic acid emulsion as base-material, cooperation flyash is prepared one as thermal insulation material for the invention
The good exterior coating of kind heat insulation effect, while titanium dioxide and nano silicon oxide are coated on fine coal gray surface, thickness reaches 0.3-
0.5 micron, the uvioresistant intensity of emulsion coatings can be significantly improved, the very firm stable that molecular link combines, this makes
Its heat resistance, weatherability, antioxidant capacity are similarly obtained enhancing, and the present invention not only increases the uviolresistance of exterior coating
Can, the problem of also solving existing silane-modified acrylic coating bad dispersibility, and the appearance of coating, covering power, machinery are strong
Degree is in high-quality state；But titanium dioxide and nano silicon oxide are coated on the surface of flyash by invention simultaneously, thickness reaches
To 0.3-0.5 microns, there is no solve nano silicon oxide, titanium dioxide and the compatibility of flyash and the bond strength of flyash
Not by force, the phenomenon that coating being caused to fall off in use for some time, its using effect is influenced.
It is resistance to ultraviolet to disclose a kind of waterproof used for building exterior wall for the Chinese invention patent application of Publication No. CN105949842A
Line coating, the invention raw material include by weight：80-120 parts of modified acrylic acid emulsion, 30-50 parts of hydroxy propyl methacrylate,
10-30 parts of dioctyl terephthalate, 2-8 parts of compound additive, 3-5 parts of nano-zinc borate, 3-9 parts of magnesium hydroxide, talcum powder
2-6 parts, 4-8 parts of attapulgite, 6-12 parts of white fused alumina micro mist, 3-5 parts of fluorocarbons, 2-4 parts of sodium peroxydisulfate, 3-5 parts of aluminium oxide, three
1-5 parts of poly aluminium phosphate, 2-6 parts of nano barium sulfate, 1-3 parts of fluorosilicon oil, 1-5 parts of sodium molybdate, 3-6 parts of dimethylbenzene, propylene glycol 3-8
Part, 1-3 parts of ultra-violet absorber, 2-4 parts of dispersant, kh-5603-5 parts of silane coupling agent, 2-5 parts of wetting agent, 16-23 parts of water.
The invention has the function of outstanding water resistance and UV resistant；But there are many raw material that the invention uses, complex process, it is uncomfortable
In large-scale promotion.
Invention content
The object of the present invention is to provide a kind of ultraviolet light powder exterior coatings and preparation method thereof, which can have
Effect prevents destruction of the ultraviolet light to coating, promotes the service life of exterior coating.
The present invention provides the following technical solutions：
A kind of ultraviolet light powder exterior coating, includes the raw material of following parts by weight：55-70 parts of polyurethane, binary second third
20-30 parts of rubber, 8-15 parts of titanium dioxide, 15-25 parts of compounded mix, 5-10 parts of auxiliary agent, 6-10 parts of nano silicon dioxide；
The auxiliary agent is blended by the raw material of following parts by weight：5-6 parts of benzophenone, 4- dimethylamino-benzoic acid second
8-10 parts of ester, 3-5 parts of triethanolamine stearate, 1-5 parts of atoleine, 6-8 parts of dimethicone, hydroxymethyl cellulose 10-15
Part, 1-5 parts of lauryl sodium sulfate；
The compounded mix includes：12-20 parts of talcum powder, 14-20 parts of calcium carbonate, 20-30 parts of magnesium hydroxide, white carbon
30-46 parts, 8-15 parts of barium stearate.
Preferably, include the raw material of following parts by weight：
62 parts of polyurethane, 25 parts of bibasic ethylene propylene rubber, 11 parts of titanium dioxide, 20 parts of compounded mix, 7 parts of auxiliary agent, nano-silica
8 parts of SiClx；
The auxiliary agent is blended by the raw material of following parts by weight：5.5 parts of benzophenone, 4- dimethylamino-benzoic acid second
9 parts of ester, 4 parts of triethanolamine stearate, 3 parts of atoleine, 7 parts of dimethicone, 12.5 parts of hydroxymethyl cellulose, dodecyl
3 parts of sodium sulphate；
The compounded mix includes：16 parts of talcum powder, calcium carbonate, 17 parts, it is 25 parts of magnesium hydroxide, 38 parts of white carbon, stearic
11.5 parts of sour barium.
Preferably, the grain size of the titanium dioxide is 120-300 mesh.
Preferably, the preparation method of the compounded mix is, by talcum powder, calcium carbonate, magnesium hydroxide, white carbon and tristearin
Sour barium, which is put into togerther, to be put into calcining furnace, and control calcination temperature is 500-550 DEG C, and calcination time is 40-50 minutes, after cooling again
It is put into ball mill, ball milling 45-60 minutes, sieve of looking over so as to check obtains the filler powder that grain size is 120-180 mesh, and filler powder is added
To being stirred evenly in ethyl acetate solution, places into drying in dryer and obtain compounded mix.
Preferably, the percentage by volume of the ethyl acetate solution is 65-78%.
A kind of preparation method of ultraviolet light powder exterior coating, includes the following steps：
(1) the two of 0.6-0.8 times of mixed material parts by weight are added thereto after mixing polyurethane and bibasic ethylene propylene rubber
Hydroxymethyl propionic acid is put into blender and stirs, and triethylene diamine and stannous octoate is added after stirring into blender again
Mixture, the wherein parts by weight of mixed material are 10-20 parts, continue stirring and obtain material A in 30-40 minutes；
(2) titanium dioxide, nano silicon dioxide and compounded mix are added simultaneously in material A, 55-65 DEG C of heating temperature value,
It stirs evenly, the mixing speed of blender is 400-500r/min, and mixing time is 40-50 minutes, obtains material B；
(3) it waits for that the temperature of material B is cooled to 25-37 DEG C, auxiliary agent is added in blender, stir 50-60 minutes, obtain object
Expect C；
(4) material C is sliced after cooling, is crushed, be re-fed into grinder and ground by screw extruder melting extrusion,
Sieve of looking over so as to check obtains the ultraviolet light powder exterior coating that grain size is 600-800 mesh.
Preferably, mixture is triethylene diamine and stannous octoate in mass ratio 1 in the step (1)：3 are blended.
Preferably, the rotating speed of blender is 200-350r/min in the step (1), and mixing time is 25-30 minutes.
Preferably, the rotating speed of blender is 600-800r/min in the step (3).
Preferably, the extrusion temperature of screw extruder is 130-145 DEG C in the step (4).
Beneficial effects of the present invention are that the exterior coating can effectively prevent the destruction of ultraviolet light External Wall coating, are promoted
The service life of exterior coating；It is specific as follows：
(1) present invention employs polyurethane common in life and bibasic ethylene propylene rubber as film forming matter, and raw material is easy to get,
Of low cost, can enhance the function of preventing ultraviolet light of coating using nano silicon dioxide and compounded mix can also enhance painting
The density of material, enhancing coating hardness, intensity and wear-resisting property.
(2) present invention carries out a series of processing to polyurethane and bibasic ethylene propylene rubber, can enhance itself and filler, nanometer
Compatibility between silica and auxiliary agent promotes its intensity, then handles compounded mix, can remove inside minerals
Constitution water and the crystallization water, then entered with ethyl acetate filling, can improve its with polyurethane and bibasic ethylene propylene rubber it is compatible
Performance promotes its surface-active.
(3) present invention also added nano silicon dioxide, it has the characteristic of extremely strong UV absorption and infrared external reflection, will
It is added in coating, can form shielding action to coating and have the function that uvioresistant linear light to protect film forming matter.
(4) present invention is added to auxiliary agent, and auxiliary agent can improve the dispersion performance and stability of coating internal particle, and
It will produce free radical, cation etc. when being irradiated with, to cause the compound of monomer polymerization crosslinking curing, improve
The stability of coating；And auxiliary agent can also reduce coating surface tension, improve its flow leveling and uniform performance, in addition may be used also
To increase the Smooth wear-resistant performance of coating surface.
Specific implementation mode
Present invention will be further explained below with reference to specific examples.These embodiments are merely to illustrate the present invention and do not have to
In limiting the scope of the invention.
Embodiment 1
The present embodiment is related to a kind of ultraviolet light powder exterior coating, includes the raw material of following parts by weight：55 parts of polyurethane,
20 parts of bibasic ethylene propylene rubber, 8 parts of titanium dioxide, 15 parts of compounded mix, 5 parts of auxiliary agent, 6 parts of nano silicon dioxide；
Auxiliary agent is blended by the raw material of following parts by weight：5 parts of benzophenone, 4- dimethylamino -8 parts of ethyl benzoate,
3 parts of triethanolamine stearate, 1 part of atoleine, 6 parts of dimethicone, 10 parts of hydroxymethyl cellulose, lauryl sodium sulfate 1
Part；
Compounded mix includes：12 parts of talcum powder, 14 parts of calcium carbonate, 20 parts of magnesium hydroxide, 30 parts of white carbon, barium stearate 8
Part.
Wherein, the grain size of titanium dioxide is 120 mesh.
Wherein, the preparation method of compounded mix is, by talcum powder, calcium carbonate, magnesium hydroxide, white carbon and barium stearate one
It rising and is put into calcining furnace, control calcination temperature is 500 DEG C, and calcination time is 40 minutes, is placed into ball mill after cooling,
Ball milling 45 minutes, sieve of looking over so as to check obtain the filler powder that grain size is 120 mesh, filler powder are added in ethyl acetate solution and is stirred
Uniformly, it places into drying in dryer and obtains compounded mix.
Wherein, the percentage by volume of ethyl acetate solution is 65%.
The present embodiment further relates to a kind of preparation method of ultraviolet light powder exterior coating, includes the following steps：
(1) the dihydroxy first of 0.6 times of mixed material parts by weight is added after mixing polyurethane and bibasic ethylene propylene rubber thereto
Base propionic acid, is put into blender and stirs, and the mixing of triethylene diamine and stannous octoate is added after stirring into blender again
Material, the wherein parts by weight of mixed material are 10 parts, continue stirring and obtain material A in 30 minutes；
(2) titanium dioxide, nano silicon dioxide and compounded mix, 55 DEG C of heating temperature value, stirring is added simultaneously in material A
Uniformly, the mixing speed of blender is 400r/min, and mixing time is 40 minutes, obtains material B；
(3) it waits for that the temperature of material B is cooled to 25 DEG C, auxiliary agent is added in blender, stir 50 minutes, obtain material C；
(4) material C is sliced after cooling, is crushed, be re-fed into grinder and ground by screw extruder melting extrusion,
Sieve of looking over so as to check obtains the ultraviolet light powder exterior coating that grain size is 600 mesh.
Wherein, mixture is triethylene diamine and stannous octoate in mass ratio 1 in step (1)：3 are blended.
Wherein, the rotating speed of blender is 200r/min in step (1), and mixing time is 25 minutes.
Wherein, the rotating speed of blender is 600r/min in step (3).
Wherein, the extrusion temperature of screw extruder is 130 DEG C in step (4).
Embodiment 2
The present embodiment is related to a kind of ultraviolet light powder exterior coating, includes the raw material of following parts by weight：70 parts of polyurethane,
30 parts of bibasic ethylene propylene rubber, 15 parts of titanium dioxide, 25 parts of compounded mix, 10 parts of auxiliary agent, 10 parts of nano silicon dioxide；
Auxiliary agent is blended by the raw material of following parts by weight：6 parts of benzophenone, 4- dimethylamino -10 parts of ethyl benzoate,
5 parts of triethanolamine stearate, 5 parts of atoleine, 8 parts of dimethicone, 15 parts of hydroxymethyl cellulose, lauryl sodium sulfate 5
Part；
Compounded mix includes：20 parts of talcum powder, 20 parts of calcium carbonate, 30 parts of magnesium hydroxide, 46 parts of white carbon, barium stearate 15
Part.
Wherein, the grain size of titanium dioxide is 300 mesh.
Wherein, the preparation method of compounded mix is, by talcum powder, calcium carbonate, magnesium hydroxide, white carbon and barium stearate one
It rising and is put into calcining furnace, control calcination temperature is 550 DEG C, and calcination time is 50 minutes, is placed into ball mill after cooling,
Ball milling 60 minutes, sieve of looking over so as to check obtain the filler powder that grain size is 180 mesh, filler powder are added in ethyl acetate solution and is stirred
Uniformly, it places into drying in dryer and obtains compounded mix.
Wherein, the percentage by volume of ethyl acetate solution is 78%.
The present embodiment further relates to a kind of preparation method of ultraviolet light powder exterior coating, includes the following steps：
(1) the dihydroxy first of 0.8 times of mixed material parts by weight is added after mixing polyurethane and bibasic ethylene propylene rubber thereto
Base propionic acid, is put into blender and stirs, and the mixing of triethylene diamine and stannous octoate is added after stirring into blender again
Material, the wherein parts by weight of mixed material are 20 parts, continue stirring and obtain material A in 40 minutes；
(2) titanium dioxide, nano silicon dioxide and compounded mix, 65 DEG C of heating temperature value, stirring is added simultaneously in material A
Uniformly, the mixing speed of blender is 500r/min, and mixing time is 50 minutes, obtains material B；
(3) it waits for that the temperature of material B is cooled to 37 DEG C, auxiliary agent is added in blender, stir 60 minutes, obtain material C；
(4) material C is sliced after cooling, is crushed, be re-fed into grinder and ground by screw extruder melting extrusion,
Sieve of looking over so as to check obtains the ultraviolet light powder exterior coating that grain size is 800 mesh.
Wherein, mixture is triethylene diamine and stannous octoate in mass ratio 1 in step (1)：3 are blended.
Wherein, the rotating speed of blender is 350r/min in step (1), and mixing time is 30 minutes.
Wherein, the rotating speed of blender is 800r/min in step (3).
Wherein, the extrusion temperature of screw extruder is 145 DEG C in step (4).
Embodiment 3
The present embodiment is related to a kind of ultraviolet light powder exterior coating, includes the raw material of following parts by weight：60 parts of polyurethane,
24 parts of bibasic ethylene propylene rubber, 9 parts of titanium dioxide, 20 parts of compounded mix, 10 parts of auxiliary agent, 8 parts of nano silicon dioxide；
Auxiliary agent is blended by the raw material of following parts by weight：5 parts of benzophenone, 4- dimethylamino -8 parts of ethyl benzoate,
3 parts of triethanolamine stearate, 5 parts of atoleine, 6 parts of dimethicone, 15 parts of hydroxymethyl cellulose, lauryl sodium sulfate 5
Part；
Compounded mix includes：12 parts of talcum powder, 20 parts of calcium carbonate, 20 parts of magnesium hydroxide, 46 parts of white carbon, barium stearate 8
Part.
Wherein, the grain size of titanium dioxide is 300 mesh.
Wherein, the preparation method of compounded mix is, by talcum powder, calcium carbonate, magnesium hydroxide, white carbon and barium stearate one
It rising and is put into calcining furnace, control calcination temperature is 500 DEG C, and calcination time is 50 minutes, is placed into ball mill after cooling,
Ball milling 45 minutes, sieve of looking over so as to check obtain the filler powder that grain size is 120 mesh, filler powder are added in ethyl acetate solution and is stirred
Uniformly, it places into drying in dryer and obtains compounded mix.
Wherein, the percentage by volume of ethyl acetate solution is 65%.
The present embodiment further relates to a kind of preparation method of ultraviolet light powder exterior coating, includes the following steps：
(1) the dihydroxy first of 0.7 times of mixed material parts by weight is added after mixing polyurethane and bibasic ethylene propylene rubber thereto
Base propionic acid, is put into blender and stirs, and the mixing of triethylene diamine and stannous octoate is added after stirring into blender again
Material, the wherein parts by weight of mixed material are 15 parts, continue stirring and obtain material A in 37 minutes；
(2) titanium dioxide, nano silicon dioxide and compounded mix, 65 DEG C of heating temperature value, stirring is added simultaneously in material A
Uniformly, the mixing speed of blender is 450r/min, and mixing time is 40 minutes, obtains material B；
(3) it waits for that the temperature of material B is cooled to 25 DEG C, auxiliary agent is added in blender, stir 50 minutes, obtain material C；
(4) material C is sliced after cooling, is crushed, be re-fed into grinder and ground by screw extruder melting extrusion,
Sieve of looking over so as to check obtains the ultraviolet light powder exterior coating that grain size is 600 mesh.
Wherein, mixture is triethylene diamine and stannous octoate in mass ratio 1 in step (1)：3 are blended.
Wherein, the rotating speed of blender is 200r/min in step (1), and mixing time is 25 minutes.
Wherein, the rotating speed of blender is 700r/min in step (3).
Wherein, the extrusion temperature of screw extruder is 137 DEG C in step (4).
Embodiment 4
The present embodiment is related to a kind of ultraviolet light powder exterior coating, includes the raw material of following parts by weight：70 parts of polyurethane,
20 parts of bibasic ethylene propylene rubber, 15 parts of titanium dioxide, 15 parts of compounded mix, 10 parts of auxiliary agent, 6 parts of nano silicon dioxide；
Auxiliary agent is blended by the raw material of following parts by weight：6 parts of benzophenone, 4- dimethylamino -8 parts of ethyl benzoate,
5 parts of triethanolamine stearate, 1 part of atoleine, 8 parts of dimethicone, 10 parts of hydroxymethyl cellulose, lauryl sodium sulfate 5
Part；
Compounded mix includes：12 parts of talcum powder, 20 parts of calcium carbonate, 20 parts of magnesium hydroxide, 46 parts of white carbon, barium stearate 8
Part.
Wherein, the grain size of titanium dioxide is 300 mesh.
Wherein, the preparation method of compounded mix is, by talcum powder, calcium carbonate, magnesium hydroxide, white carbon and barium stearate one
It rising and is put into calcining furnace, control calcination temperature is 500 DEG C, and calcination time is 50 minutes, is placed into ball mill after cooling,
Ball milling 45 minutes, sieve of looking over so as to check obtain the filler powder that grain size is 180 mesh, filler powder are added in ethyl acetate solution and is stirred
Uniformly, it places into drying in dryer and obtains compounded mix.
Wherein, the percentage by volume of ethyl acetate solution is 65%.
The present embodiment further relates to a kind of preparation method of ultraviolet light powder exterior coating, includes the following steps：
(1) the dihydroxy first of 0.8 times of mixed material parts by weight is added after mixing polyurethane and bibasic ethylene propylene rubber thereto
Base propionic acid, is put into blender and stirs, and the mixing of triethylene diamine and stannous octoate is added after stirring into blender again
Material, the wherein parts by weight of mixed material are 10 parts, continue stirring and obtain material A in 40 minutes；
(2) titanium dioxide, nano silicon dioxide and compounded mix, 55 DEG C of heating temperature value, stirring is added simultaneously in material A
Uniformly, the mixing speed of blender is 500r/min, and mixing time is 40 minutes, obtains material B；
(3) it waits for that the temperature of material B is cooled to 37 DEG C, auxiliary agent is added in blender, stir 50 minutes, obtain material C；
(4) material C is sliced after cooling, is crushed, be re-fed into grinder and ground by screw extruder melting extrusion,
Sieve of looking over so as to check obtains the ultraviolet light powder exterior coating that grain size is 800 mesh.
Wherein, mixture is triethylene diamine and stannous octoate in mass ratio 1 in step (1)：3 are blended.
Wherein, the rotating speed of blender is 350r/min in step (1), and mixing time is 25 minutes.
Wherein, the rotating speed of blender is 600r/min in step (3).
Wherein, the extrusion temperature of screw extruder is 145 DEG C in step (4).
Embodiment 5
The present embodiment is related to a kind of ultraviolet light powder exterior coating, includes the raw material of following parts by weight：62 parts of polyurethane,
25 parts of bibasic ethylene propylene rubber, 11 parts of titanium dioxide, 20 parts of compounded mix, 7 parts of auxiliary agent, 8 parts of nano silicon dioxide；
The auxiliary agent is blended by the raw material of following parts by weight：5.5 parts of benzophenone, 4- dimethylamino-benzoic acid second
9 parts of ester, 4 parts of triethanolamine stearate, 3 parts of atoleine, 7 parts of dimethicone, 12.5 parts of hydroxymethyl cellulose, dodecyl
3 parts of sodium sulphate；
The compounded mix includes：16 parts of talcum powder, calcium carbonate, 17 parts, it is 25 parts of magnesium hydroxide, 38 parts of white carbon, stearic
11.5 parts of sour barium.
Wherein, the grain size of titanium dioxide is 210 mesh.
Wherein, the preparation method of compounded mix is, by talcum powder, calcium carbonate, magnesium hydroxide, white carbon and barium stearate one
It rising and is put into calcining furnace, control calcination temperature is 525 DEG C, and calcination time is 45 minutes, is placed into ball mill after cooling,
Ball milling 53 minutes, sieve of looking over so as to check obtain the filler powder that grain size is 150 mesh, filler powder are added in ethyl acetate solution and is stirred
Uniformly, it places into drying in dryer and obtains compounded mix.
Wherein, the percentage by volume of ethyl acetate solution is 71%.
The present embodiment further relates to a kind of preparation method of ultraviolet light powder exterior coating, includes the following steps：
(1) the dihydroxy first of 0.7 times of mixed material parts by weight is added after mixing polyurethane and bibasic ethylene propylene rubber thereto
Base propionic acid, is put into blender and stirs, and the mixing of triethylene diamine and stannous octoate is added after stirring into blender again
Material, the wherein parts by weight of mixed material are 15 parts, continue stirring and obtain material A in 35 minutes；
(2) titanium dioxide, nano silicon dioxide and compounded mix, 60 DEG C of heating temperature value, stirring is added simultaneously in material A
Uniformly, the mixing speed of blender is 450r/min, and mixing time is 45 minutes, obtains material B；
(3) it waits for that the temperature of material B is cooled to 31 DEG C, auxiliary agent is added in blender, stir 55 minutes, obtain material C；
(4) material C is sliced after cooling, is crushed, be re-fed into grinder and ground by screw extruder melting extrusion,
Sieve of looking over so as to check obtains the ultraviolet light powder exterior coating that grain size is 700 mesh.
Wherein, mixture is triethylene diamine and stannous octoate in mass ratio 1 in step (1)：3 are blended.
Wherein, the rotating speed of blender is 275r/min in step (1), and mixing time is 27 minutes.
Wherein, the rotating speed of blender is 700r/min in step (3).
Wherein, the extrusion temperature of screw extruder is 137 DEG C in step (4).
Comparative example 1
Using exterior wall heat-insulating paint made from Chinese patent (Publication No. CN107936745A).
Comparative example 2
In addition to no auxiliary agent, other raw materials, content and step are consistent with embodiment.
Comparative example 3
In addition to no nano silicon dioxide, other raw materials, content are consistent with step and embodiment.
Comparative example 4
In addition to no white carbon, other raw materials, content and step are consistent with embodiment.
Comparative example 5
Exterior coating made from the prior art.
Detection is sampled to embodiment 1-5 and comparative example the 1-5 exterior coating prepared according to national standards；Its result is such as
Under：
As can be seen from the table, it acts synergistically, reaches jointly desired by the present invention between each step each component in the present invention
Effect, exterior coating degradation obtained can all be made by lacking raw material or change raw material, in conjunction with comparative example 2, comparative example
3, it is vital to can be seen that nano silicon dioxide, auxiliary agent and white carbon play the role of in the present invention for comparative example 4, lacks
Any one can cause the purpose of the present invention can not achieve；The ultraviolet light powder exterior coating of gained of the invention has outstanding
Anti-aging property, in ultraviolet light still not dusting in 2000 hours, colour-fast；And it is applied to smooth coating on ground, color and luster
Uniformly；But also there is outstanding alkaline resistance properties and hardness.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (10)
1. a kind of ultraviolet light powder exterior coating, which is characterized in that include the raw material of following parts by weight：
55-70 parts of polyurethane, 20-30 parts of bibasic ethylene propylene rubber, 8-15 parts of titanium dioxide, 15-25 parts of compounded mix, auxiliary agent 5-10
Part, 6-10 parts of nano silicon dioxide；
The auxiliary agent is blended by the raw material of following parts by weight：5-6 parts of benzophenone, 4- dimethylamino-ethyl benzoate 8-
10 parts, 3-5 parts of triethanolamine stearate, 1-5 parts of atoleine, 6-8 parts of dimethicone, 10-15 parts of hydroxymethyl cellulose, ten
1-5 parts of sodium dialkyl sulfate；
The compounded mix includes：12-20 parts of talcum powder, 14-20 parts of calcium carbonate, 20-30 parts of magnesium hydroxide, white carbon 30-46
Part, 8-15 parts of barium stearate.
2. ultraviolet light powder exterior coating according to claim 1, which is characterized in that include the original of following parts by weight
Material：
62 parts of polyurethane, 25 parts of bibasic ethylene propylene rubber, 11 parts of titanium dioxide, 20 parts of compounded mix, 7 parts of auxiliary agent, nano silicon dioxide 8
Part；
The auxiliary agent is blended by the raw material of following parts by weight：5.5 parts of benzophenone, 4- dimethylamino-ethyl benzoate 9
Part, 4 parts of triethanolamine stearate, 3 parts of atoleine, 7 parts of dimethicone, 12.5 parts of hydroxymethyl cellulose, dodecyl sulphur
3 parts of sour sodium；
The compounded mix includes：16 parts of talcum powder, calcium carbonate, 17 parts, 25 parts of magnesium hydroxide, 38 parts of white carbon, barium stearate
11.5 parts.
3. ultraviolet light powder exterior coating according to claim 1, which is characterized in that the grain size of the titanium dioxide is
120-300 mesh.
4. ultraviolet light powder exterior coating according to claim 1, which is characterized in that the preparation side of the compounded mix
Method is to be put into togerther talcum powder, calcium carbonate, magnesium hydroxide, white carbon and barium stearate and be put into calcining furnace, control calcining temperature
Degree is 500-550 DEG C, and calcination time is 40-50 minutes, is placed into ball mill after cooling, ball milling 45-60 minutes is looked over so as to check and sieved
To the filler powder that grain size is 120-180 mesh, filler powder is added in ethyl acetate solution and is stirred evenly, drying is placed into
Drying obtains compounded mix in machine.
5. ultraviolet light powder exterior coating according to claim 4, which is characterized in that the body of the ethyl acetate solution
Product percentage is 65-78%.
6. the preparation method of the ultraviolet light powder exterior coating described in a kind of any one of claim 1 to 5, feature exist
In including the following steps：
(1) the dihydroxy first of 0.6-0.8 times of mixed material parts by weight is added after mixing polyurethane and bibasic ethylene propylene rubber thereto
Base propionic acid, is put into blender and stirs, and the mixing of triethylene diamine and stannous octoate is added after stirring into blender again
Material, the wherein parts by weight of mixed material are 10-20 parts, continue stirring and obtain material A in 30-40 minutes；
(2) titanium dioxide, nano silicon dioxide and compounded mix is added simultaneously in material A, heating temperature is to 55-65 DEG C, stirring
Uniformly, the mixing speed of blender is 400-500r/min, and mixing time is 40-50 minutes, obtains material B；
(3) it waits for that the temperature of material B is cooled to 25-37 DEG C, auxiliary agent is added in blender, stir 50-60 minutes, obtain material C；
(4) material C is sliced after cooling, is crushed, be re-fed into grinder and ground, looked over so as to check by screw extruder melting extrusion
Sieve obtains the ultraviolet light powder exterior coating that grain size is 600-800 mesh.
7. the preparation method of ultraviolet light powder exterior coating according to claim 6, which is characterized in that the step
(1) mixture is triethylene diamine and stannous octoate in mass ratio 1 in：3 are blended.
8. the preparation method of ultraviolet light powder exterior coating according to claim 6, which is characterized in that the step
(1) rotating speed of blender is 200-350r/min in, and mixing time is 25-30 minutes.
9. the preparation method of ultraviolet light powder exterior coating according to claim 6, which is characterized in that the step
(3) rotating speed of blender is 600-800r/min in.
10. the preparation method of ultraviolet light powder exterior coating according to claim 6, which is characterized in that the step
(4) extrusion temperature of screw extruder is 130-145 DEG C in.
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| CN201810831421.7A CN108795269A (en) | 2018-07-26 | 2018-07-26 | A kind of ultraviolet light powder exterior coating and preparation method thereof |
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| CN201810831421.7A CN108795269A (en) | 2018-07-26 | 2018-07-26 | A kind of ultraviolet light powder exterior coating and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105505076A (en) * | 2016-01-21 | 2016-04-20 | 上海馨来建筑装饰设计有限公司 | Environment-friendly external wall paint and preparation method thereof |
| CN106147448A (en) * | 2016-07-19 | 2016-11-23 | 卞广勇 | A kind of antibacterial waterproof and ageing-resistant building coating and preparation method thereof |
| CN108033754A (en) * | 2017-12-14 | 2018-05-15 | 江苏赛沃机械设备有限公司 | A kind of fire preventing and heat insulating building material |
-
2018
- 2018-07-26 CN CN201810831421.7A patent/CN108795269A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105505076A (en) * | 2016-01-21 | 2016-04-20 | 上海馨来建筑装饰设计有限公司 | Environment-friendly external wall paint and preparation method thereof |
| CN106147448A (en) * | 2016-07-19 | 2016-11-23 | 卞广勇 | A kind of antibacterial waterproof and ageing-resistant building coating and preparation method thereof |
| CN108033754A (en) * | 2017-12-14 | 2018-05-15 | 江苏赛沃机械设备有限公司 | A kind of fire preventing and heat insulating building material |
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Application publication date: 20181113 |