CN109467987A - A kind of protective coating and preparation method thereof being applied to solar panel rack surface - Google Patents
A kind of protective coating and preparation method thereof being applied to solar panel rack surface Download PDFInfo
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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
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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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
- 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
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- C08K2201/011—Nanostructured additives
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/204—Applications use in electrical or conductive gadgets use in solar cells
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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
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Abstract
The invention discloses a kind of protective coating for being applied to solar panel rack surface, the raw material including following parts by weight: 20~30 parts of thermosetting fluoro carbon resin, 13~18 parts of glyptal, 17~26 parts of acrylic resin, 15~25 parts of modified epoxy, 6~13 parts of modified meerschaum, 2~4 parts of nano-titanium dioxide, 1~3 part of petroleum sodium sulfonate, 2~5 parts of modified micaceous powder, 0.3~0.8 part of multi-walled carbon nanotube, 1~2 part of antioxidant, 2~4 parts of light stabilizer and 30~50 parts of solvent.The protective coating of what the present invention was prepared be applied to solar panel rack surface is by controlling the type and proportion of its raw material, and the coating adhesion being prepared is good, and resistance to acid and alkali is strong, and anti-aging property is excellent.
Description
Technical field
The invention belongs to solar panel support technology field, and in particular to a kind of solar panel rack surface that is applied to
Protective coating and preparation method thereof.
Background technique
What solar bracket was primarily used to play the role of supporting and fixing to solar panel, due to its long-term exposure
Outside, so having good anticorrosive property to be necessary, meanwhile, weather is cold, in the lower situation of temperature, be easy to cause branch
The fracture of frame or frostbite, the breakage on bracket surface layer.
The patent of invention of application publication number CN107474671A discloses a kind of coating for solar bracket, specifically by
Coating is sprayed on solar bracket after stirring evenly, and naturally dry 90min ~ 120min is formed；The coating includes following
Raw material: propylene glycol, ethylene glycol, glycerine, modified Teflon lotion, silicone acrylic emulsion, ethyl acetate, deionized water, levelling
Agent, wetting agent.The invention has the benefit that (1) modified Teflon surface has good adsorption capacity, it can be with other originals
Material uniformly mixing improves the antifreeze uniformity with anticorrosion efficiency of coating；(2) the coating implementation method is simple to operation, can
It promotes the use of；(3) coating can effectively prevent solar bracket the injury caused by low temperature or corrosion.But institute
It is bad to state resistance to acid and alkali, loss of properties on aging.
Summary of the invention
The present invention provides a kind of protective coatings and preparation method thereof for being applied to solar panel rack surface, solve back
The problems in scape technology, what the present invention was prepared is applied to the protective coating of solar panel rack surface by controlling its raw material
Type and proportion, the coating adhesion being prepared is good, and resistance to acid and alkali is strong, and anti-aging property is excellent.
It is of the existing technology in order to solve the problems, such as, it adopts the following technical scheme that
A kind of protective coating being applied to solar panel rack surface, the raw material including following parts by weight: thermosetting fluoro carbon resin
20~30 parts, 13~18 parts of glyptal, 17~26 parts of acrylic resin, 15~25 parts of modified epoxy, modified sea
6~13 parts of afrodite, 2~4 parts of nano-titanium dioxide, 1~3 part of petroleum sodium sulfonate, 2~5 parts of modified micaceous powder, multi-walled carbon nanotube
0.3~0.8 part, 1~2 part of antioxidant, 2~4 parts of light stabilizer and 30~50 parts of solvent,
The modified meerschaum the preparation method is as follows:
(1) sepiolite and water are mixed and are poured into water heating kettle, and surfactant is added, in temperature be 200~240 DEG C, pressure
Under the conditions of 2~5MPa, heat-insulation pressure keeping is stirred to react, and is discharged, and filtering obtains filter cake, is 7~13% salt by filter cake and mass fraction
After acid-mixed is closed, it is stirred to react, using filter, washing, drying and roasting, obtains pretreatment sepiolite；
(2) melamine, glycerol and methanol are uniformly mixed, pretreatment sepiolite are then added, heating stirring is uniformly mixed, cold
But, calcium bicarbonate is added, microwave treatment 5~10 minutes, is then uniformly mixed, obtains modified meerschaum.
Preferably, the protective coating for being applied to solar panel rack surface, the raw material including following parts by weight: thermosetting
Property 23~28 parts of fluorocarbon resin, 14~16 parts of glyptal, 20~25 parts of acrylic resin, modified epoxy 18~22
Part, 7~11 parts of modified meerschaum, 2.5~3.5 parts of nano-titanium dioxide, 1.6~2.3 parts of petroleum sodium sulfonate, modified micaceous powder 3
~4 parts, 0.4~0.7 part of multi-walled carbon nanotube, 1.4~1.9 parts of antioxidant, 2.8~3.3 parts of light stabilizer and solvent 35~45
Part.
Preferably, the protective coating for being applied to solar panel rack surface, the raw material including following parts by weight: thermosetting
Property 26 parts of fluorocarbon resin, 15 parts of glyptal, 23 parts of acrylic resin, 20 parts of modified epoxy, modified meerschaum 9
Part, 3 parts of nano-titanium dioxide, 1.8 parts of petroleum sodium sulfonate, 3.4 parts of modified micaceous powder, 0.6 part of multi-walled carbon nanotube, antioxidant
1.7 parts, 3.1 parts of light stabilizer and 40 parts of solvent.
Preferably, the modified meerschaum the preparation method is as follows:
(1) sepiolite and water are mixed and are poured into water heating kettle, and surfactant is added, in temperature be 220 DEG C, pressure 4MPa
Under the conditions of, heat-insulation pressure keeping is stirred to react, and is discharged, and filtering obtains filter cake, is stirring after 10% mixed in hydrochloric acid by filter cake and mass fraction
Reaction, using filter, washing, drying and roasting, obtains pretreatment sepiolite；
(2) melamine, glycerol and methanol are uniformly mixed, pretreatment sepiolite are then added, heating stirring is uniformly mixed, cold
But, calcium bicarbonate is added, microwave treatment 7 minutes, is then uniformly mixed, obtains modified meerschaum.
Preferably, the modified epoxy the preparation method is as follows:
(1) polyethylene glycol is added into reactor, acetone I is added after vacuum drying, the acetone soln of polyethylene glycol is obtained, another
Diisocyanate compound, acetone II, catalyst A are added in one reactor, obtains the acetone of diisocyanate compound
The acetone soln of the polyethylene glycol is added drop-wise in the acetone soln of diisocyanate compound by solution, after dripping off, temperature control
40~50 DEG C are reacted 100 minutes, and it is spare to obtain base polyurethane prepolymer for use as；
(2) in extracting epoxy resin investment reactor, solvent propylene glycol methyl ether, acetone III, catalyst B is added after vacuum drying, obtains
To epoxy resin reaction solution, base polyurethane prepolymer for use as obtained by step (1) is added drop-wise in the epoxy resin reaction solution, after dripping off in
60~65 DEG C are reacted 70 minutes, and modified epoxy is obtained.
Preferably, the modified micaceous powder the preparation method is as follows:
(1) 100~130 DEG C preheating and drying 60~90 minutes in mica powder drying box are weighed, is then added and accounts for mica powder quality hundred
Divide 25% ammonia spirit than 5%, is stirred 2~3 hours at 60~70 DEG C, filter out mica powder, it is dry；
(2) mica powder is placed in nano silicon dioxide sol, using vacuum impregnation absorbing process, makes nano silicon dioxide sol
It is mixed with mica powder, forms gel, after to be aging, dry, hydrophobic processing forms modified micaceous powder by normal pressure classification.
Preferably, the diameter of the multi-walled carbon nanotube is 30~60nm.
Preferably, the light stabilizer is ultraviolet absorbing agent or hindered amine free raical capturing agent.
A method of preparing the protective coating for being applied to solar panel rack surface, comprising the following steps:
(1) thermosetting fluoro carbon resin, glyptal, acrylic resin, modified epoxy, modification are weighed by above-mentioned formula
Sepiolite, nano-titanium dioxide, petroleum sodium sulfonate, modified micaceous powder, multi-walled carbon nanotube, antioxidant, light stabilizer and solvent,
It is spare；
(2) solvent is placed in reaction kettle and is warming up to 40~50 DEG C, then sequentially add modified meerschaum, nano-titanium dioxide,
Petroleum sodium sulfonate, modified micaceous powder, multi-walled carbon nanotube, high speed dispersion is uniform, obtains mixture A；
(3) thermosetting fluoro carbon resin, glyptal, acrylic resin, modified epoxy tree are sequentially added into mixture A
Rouge, controlling the temperature in reaction kettle is 40~50 DEG C, and pressure is 2~3MPa, is uniformly mixed, and antioxidant, light is then added
Stabilizer, ultrasonic wave are uniformly dispersed to get the protective coating for being applied to solar panel rack surface.
Preferably, the time that ultrasonic wave disperses in the step (3) is 10~15 minutes.
Compared with prior art, the present invention it has the advantages that
What the present invention was prepared is applied to the protective coating of solar panel rack surface by controlling the type of its raw material and matching
Than, the coating adhesion being prepared is good, and resistance to acid and alkali is strong, and anti-aging property is excellent, specific as follows:
(1) present invention is using thermosetting fluoro carbon resin, glyptal, acrylic resin, modified epoxy, modified Hai Pao
Stone, nano-titanium dioxide, petroleum sodium sulfonate, modified micaceous powder, multi-walled carbon nanotube, antioxidant, light stabilizer and solvent conduct
Raw material mutually acts synergistically between raw material, and the coating adhesion being prepared is good, and resistance to acid and alkali is strong, and anti-aging property is excellent；
(2) present invention first prepares base polyurethane prepolymer for use as, is then modified with base polyurethane prepolymer for use as to epoxy resin, is made and is modified
Epoxy resin, the modified epoxy resistance to acid and alkali and anti-aging property being prepared get a promotion and the collaboration of other raw materials
It acts on and strict control its preparation process, so that the synergistic effect between raw material is played to optimal, the coating being prepared is acidproof
Alkalinity is good, and anti-aging property is excellent；
(3) present invention pre-processes sepiolite, is then modified, modified sepiolite and modified epoxy etc. are former
There is material good compatibility and other raw materials to act synergistically, and the adhesive force and hardness of coating can be improved.
Specific embodiment
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 protective coating for being applied to solar panel rack surface, the raw material including following parts by weight: heat
20 parts of solidity fluorocarbon resin, 13 parts of glyptal, 17 parts of acrylic resin, 15 parts of modified epoxy, modified meerschaum 6
Part, 2 parts of nano-titanium dioxide, 1 part of petroleum sodium sulfonate, 2 parts of modified micaceous powder, 0.3 part of multi-walled carbon nanotube, 1 part of antioxidant, light
2 parts of stabilizer and 30 parts of solvent,
The modified meerschaum the preparation method is as follows:
(1) sepiolite and water are mixed and are poured into water heating kettle, and surfactant is added, in temperature be 200 DEG C, pressure 2MPa
Under the conditions of, heat-insulation pressure keeping is stirred to react, and is discharged, and filtering obtains filter cake, is stirring after 7% mixed in hydrochloric acid by filter cake and mass fraction
Reaction, using filter, washing, drying and roasting, obtains pretreatment sepiolite；
(2) melamine, glycerol and methanol are uniformly mixed, pretreatment sepiolite are then added, heating stirring is uniformly mixed, cold
But, calcium bicarbonate is added, microwave treatment 5 minutes, is then uniformly mixed, obtains modified meerschaum.
Wherein, the modified epoxy the preparation method is as follows:
(1) polyethylene glycol is added into reactor, acetone I is added after vacuum drying, the acetone soln of polyethylene glycol is obtained, another
Diisocyanate compound, acetone II, catalyst A are added in one reactor, obtains the acetone of diisocyanate compound
The acetone soln of the polyethylene glycol is added drop-wise in the acetone soln of diisocyanate compound by solution, after dripping off, temperature control
40~50 DEG C are reacted 100 minutes, and it is spare to obtain base polyurethane prepolymer for use as；
(2) in extracting epoxy resin investment reactor, solvent propylene glycol methyl ether, acetone III, catalyst B is added after vacuum drying, obtains
To epoxy resin reaction solution, base polyurethane prepolymer for use as obtained by step (1) is added drop-wise in the epoxy resin reaction solution, after dripping off in
60~65 DEG C are reacted 70 minutes, and modified epoxy is obtained.
Wherein, the modified micaceous powder the preparation method is as follows:
(1) 100 DEG C preheating and drying 60 minutes in mica powder drying box are weighed, is then added and accounts for mica powder mass percent 5%
25% ammonia spirit stirs 2 hours at 60 DEG C, filters out mica powder, dry；
(2) mica powder is placed in nano silicon dioxide sol, using vacuum impregnation absorbing process, makes nano silicon dioxide sol
It is mixed with mica powder, forms gel, after to be aging, dry, hydrophobic processing forms modified micaceous powder by normal pressure classification.
Wherein, the diameter of the multi-walled carbon nanotube is 30~60nm.
Wherein, the light stabilizer is ultraviolet absorbing agent.
A method of preparing the protective coating for being applied to solar panel rack surface, comprising the following steps:
(1) thermosetting fluoro carbon resin, glyptal, acrylic resin, modified epoxy, modification are weighed by above-mentioned formula
Sepiolite, nano-titanium dioxide, petroleum sodium sulfonate, modified micaceous powder, multi-walled carbon nanotube, antioxidant, light stabilizer and solvent,
It is spare；
(2) solvent is placed in reaction kettle and is warming up to 40 DEG C, then sequentially add modified meerschaum, nano-titanium dioxide, petroleum
Sodium sulfonate, modified micaceous powder, multi-walled carbon nanotube, high speed dispersion is uniform, obtains mixture A；
(3) thermosetting fluoro carbon resin, glyptal, acrylic resin, modified epoxy tree are sequentially added into mixture A
Rouge, controlling the temperature in reaction kettle is 40 DEG C, and pressure 2MPa is uniformly mixed, and antioxidant, light stabilizer is then added,
Ultrasonic wave is uniformly dispersed to get the protective coating for being applied to solar panel rack surface.
Wherein, the time that ultrasonic wave disperses in the step (3) is 10 minutes.
Embodiment 2
The present embodiment is related to a kind of protective coating for being applied to solar panel rack surface, the raw material including following parts by weight: heat
30 parts of solidity fluorocarbon resin, 18 parts of glyptal, 26 parts of acrylic resin, 25 parts of modified epoxy, modified meerschaum
13 parts, 4 parts of nano-titanium dioxide, 3 parts of petroleum sodium sulfonate, 5 parts of modified micaceous powder, 0.8 part of multi-walled carbon nanotube, 2 parts of antioxidant,
4 parts of light stabilizer and 50 parts of solvent,
The modified meerschaum the preparation method is as follows:
(1) sepiolite and water are mixed and are poured into water heating kettle, and surfactant is added, in temperature be 240 DEG C, pressure 5MPa
Under the conditions of, heat-insulation pressure keeping is stirred to react, and is discharged, and filtering obtains filter cake, is stirring after 13% mixed in hydrochloric acid by filter cake and mass fraction
Reaction, using filter, washing, drying and roasting, obtains pretreatment sepiolite；
(2) melamine, glycerol and methanol are uniformly mixed, pretreatment sepiolite are then added, heating stirring is uniformly mixed, cold
But, calcium bicarbonate is added, microwave treatment 10 minutes, is then uniformly mixed, obtains modified meerschaum.
Wherein, the modified epoxy the preparation method is as follows:
(1) polyethylene glycol is added into reactor, acetone I is added after vacuum drying, the acetone soln of polyethylene glycol is obtained, another
Diisocyanate compound, acetone II, catalyst A are added in one reactor, obtains the acetone of diisocyanate compound
The acetone soln of the polyethylene glycol is added drop-wise in the acetone soln of diisocyanate compound by solution, after dripping off, temperature control
40~50 DEG C are reacted 100 minutes, and it is spare to obtain base polyurethane prepolymer for use as；
(2) in extracting epoxy resin investment reactor, solvent propylene glycol methyl ether, acetone III, catalyst B is added after vacuum drying, obtains
To epoxy resin reaction solution, base polyurethane prepolymer for use as obtained by step (1) is added drop-wise in the epoxy resin reaction solution, after dripping off in
60~65 DEG C are reacted 70 minutes, and modified epoxy is obtained.
Wherein, the modified micaceous powder the preparation method is as follows:
(1) 130 DEG C preheating and drying 90 minutes in mica powder drying box are weighed, is then added and accounts for mica powder mass percent 5%
25% ammonia spirit stirs 3 hours at 70 DEG C, filters out mica powder, dry；
(2) mica powder is placed in nano silicon dioxide sol, using vacuum impregnation absorbing process, makes nano silicon dioxide sol
It is mixed with mica powder, forms gel, after to be aging, dry, hydrophobic processing forms modified micaceous powder by normal pressure classification.
Wherein, the diameter of the multi-walled carbon nanotube is 30~60nm.
Wherein, the light stabilizer is hindered amine free raical capturing agent.
A method of preparing the protective coating for being applied to solar panel rack surface, comprising the following steps:
(1) thermosetting fluoro carbon resin, glyptal, acrylic resin, modified epoxy, modification are weighed by above-mentioned formula
Sepiolite, nano-titanium dioxide, petroleum sodium sulfonate, modified micaceous powder, multi-walled carbon nanotube, antioxidant, light stabilizer and solvent,
It is spare；
(2) solvent is placed in reaction kettle and is warming up to 50 DEG C, then sequentially add modified meerschaum, nano-titanium dioxide, petroleum
Sodium sulfonate, modified micaceous powder, multi-walled carbon nanotube, high speed dispersion is uniform, obtains mixture A；
(3) thermosetting fluoro carbon resin, glyptal, acrylic resin, modified epoxy tree are sequentially added into mixture A
Rouge, controlling the temperature in reaction kettle is 50 DEG C, and pressure 3MPa is uniformly mixed, and antioxidant, light stabilizer is then added,
Ultrasonic wave is uniformly dispersed to get the protective coating for being applied to solar panel rack surface.
Wherein, the time that ultrasonic wave disperses in the step (3) is 15 minutes.
Embodiment 3
The present embodiment is related to a kind of protective coating for being applied to solar panel rack surface, the raw material including following parts by weight: heat
23 parts of solidity fluorocarbon resin, 14 parts of glyptal, 20 parts of acrylic resin, 18 parts of modified epoxy, modified meerschaum 7
Part, 2.5 parts of nano-titanium dioxide, 1.6 parts of petroleum sodium sulfonate, 3 parts of modified micaceous powder, 0.4 part of multi-walled carbon nanotube, antioxidant
1.4 parts, 2.8 parts of light stabilizer and 35 parts of solvent.
Wherein, the modified meerschaum the preparation method is as follows:
(1) sepiolite and water are mixed and are poured into water heating kettle, and surfactant is added, in temperature be 220 DEG C, pressure 4MPa
Under the conditions of, heat-insulation pressure keeping is stirred to react, and is discharged, and filtering obtains filter cake, is stirring after 10% mixed in hydrochloric acid by filter cake and mass fraction
Reaction, using filter, washing, drying and roasting, obtains pretreatment sepiolite；
(2) melamine, glycerol and methanol are uniformly mixed, pretreatment sepiolite are then added, heating stirring is uniformly mixed, cold
But, calcium bicarbonate is added, microwave treatment 7 minutes, is then uniformly mixed, obtains modified meerschaum.
Wherein, the modified epoxy the preparation method is as follows:
(1) polyethylene glycol is added into reactor, acetone I is added after vacuum drying, the acetone soln of polyethylene glycol is obtained, another
Diisocyanate compound, acetone II, catalyst A are added in one reactor, obtains the acetone of diisocyanate compound
The acetone soln of the polyethylene glycol is added drop-wise in the acetone soln of diisocyanate compound by solution, after dripping off, temperature control
40~50 DEG C are reacted 100 minutes, and it is spare to obtain base polyurethane prepolymer for use as；
(2) in extracting epoxy resin investment reactor, solvent propylene glycol methyl ether, acetone III, catalyst B is added after vacuum drying, obtains
To epoxy resin reaction solution, base polyurethane prepolymer for use as obtained by step (1) is added drop-wise in the epoxy resin reaction solution, after dripping off in
60~65 DEG C are reacted 70 minutes, and modified epoxy is obtained.
Wherein, the modified micaceous powder the preparation method is as follows:
(1) 110 preheating and drying 70 minutes in mica powder drying box are weighed, is then added and accounts for the 25% of mica powder mass percent 5%
Ammonia spirit stirs 2.3 hours at 65 DEG C, filters out mica powder, dry；
(2) mica powder is placed in nano silicon dioxide sol, using vacuum impregnation absorbing process, makes nano silicon dioxide sol
It is mixed with mica powder, forms gel, after to be aging, dry, hydrophobic processing forms modified micaceous powder by normal pressure classification.
Wherein, the diameter of the multi-walled carbon nanotube is 30~60nm.
Wherein, the light stabilizer is ultraviolet absorbing agent.
A method of preparing the protective coating for being applied to solar panel rack surface, comprising the following steps:
(1) thermosetting fluoro carbon resin, glyptal, acrylic resin, modified epoxy, modification are weighed by above-mentioned formula
Sepiolite, nano-titanium dioxide, petroleum sodium sulfonate, modified micaceous powder, multi-walled carbon nanotube, antioxidant, light stabilizer and solvent,
It is spare；
(2) solvent is placed in reaction kettle and is warming up to 45 DEG C, then sequentially add modified meerschaum, nano-titanium dioxide, petroleum
Sodium sulfonate, modified micaceous powder, multi-walled carbon nanotube, high speed dispersion is uniform, obtains mixture A；
(3) thermosetting fluoro carbon resin, glyptal, acrylic resin, modified epoxy tree are sequentially added into mixture A
Rouge, controlling the temperature in reaction kettle is 45 DEG C, and pressure 2.3MPa is uniformly mixed, and antioxidant is then added, light is stablized
Agent, ultrasonic wave are uniformly dispersed to get the protective coating for being applied to solar panel rack surface.
Wherein, the time that ultrasonic wave disperses in the step (3) is 11 minutes.
Embodiment 4
The present embodiment is related to a kind of protective coating for being applied to solar panel rack surface, the raw material including following parts by weight: heat
28 parts of solidity fluorocarbon resin, 16 parts of glyptal, 25 parts of acrylic resin, 22 parts of modified epoxy, modified meerschaum
11 parts, 3.5 parts of nano-titanium dioxide, 2.3 parts of petroleum sodium sulfonate, 4 parts of modified micaceous powder, 0.7 part of multi-walled carbon nanotube, antioxidant
1.9 parts, 3.3 parts of light stabilizer and 45 parts of solvent.
Wherein, the modified meerschaum the preparation method is as follows:
(1) sepiolite and water are mixed and are poured into water heating kettle, and surfactant is added, in temperature be 220 DEG C, pressure 4MPa
Under the conditions of, heat-insulation pressure keeping is stirred to react, and is discharged, and filtering obtains filter cake, is stirring after 10% mixed in hydrochloric acid by filter cake and mass fraction
Reaction, using filter, washing, drying and roasting, obtains pretreatment sepiolite；
(2) melamine, glycerol and methanol are uniformly mixed, pretreatment sepiolite are then added, heating stirring is uniformly mixed, cold
But, calcium bicarbonate is added, microwave treatment 7 minutes, is then uniformly mixed, obtains modified meerschaum.
Wherein, the modified epoxy the preparation method is as follows:
(1) polyethylene glycol is added into reactor, acetone I is added after vacuum drying, the acetone soln of polyethylene glycol is obtained, another
Diisocyanate compound, acetone II, catalyst A are added in one reactor, obtains the acetone of diisocyanate compound
The acetone soln of the polyethylene glycol is added drop-wise in the acetone soln of diisocyanate compound by solution, after dripping off, temperature control
40~50 DEG C are reacted 100 minutes, and it is spare to obtain base polyurethane prepolymer for use as；
(2) in extracting epoxy resin investment reactor, solvent propylene glycol methyl ether, acetone III, catalyst B is added after vacuum drying, obtains
To epoxy resin reaction solution, base polyurethane prepolymer for use as obtained by step (1) is added drop-wise in the epoxy resin reaction solution, after dripping off in
60~65 DEG C are reacted 70 minutes, and modified epoxy is obtained.
Wherein, the modified micaceous powder the preparation method is as follows:
(1) 115 DEG C preheating and drying 75 minutes in mica powder drying box are weighed, is then added and accounts for mica powder mass percent 5%
25% ammonia spirit stirs 2.5 hours at 65 DEG C, filters out mica powder, dry；
(2) mica powder is placed in nano silicon dioxide sol, using vacuum impregnation absorbing process, makes nano silicon dioxide sol
It is mixed with mica powder, forms gel, after to be aging, dry, hydrophobic processing forms modified micaceous powder by normal pressure classification.
Wherein, the diameter of the multi-walled carbon nanotube is 30~60nm.
Wherein, the light stabilizer is ultraviolet absorbing agent.
A method of preparing the protective coating for being applied to solar panel rack surface, comprising the following steps:
(1) thermosetting fluoro carbon resin, glyptal, acrylic resin, modified epoxy, modification are weighed by above-mentioned formula
Sepiolite, nano-titanium dioxide, petroleum sodium sulfonate, modified micaceous powder, multi-walled carbon nanotube, antioxidant, light stabilizer and solvent,
It is spare；
(2) solvent is placed in reaction kettle and is warming up to 45 DEG C, then sequentially add modified meerschaum, nano-titanium dioxide, petroleum
Sodium sulfonate, modified micaceous powder, multi-walled carbon nanotube, high speed dispersion is uniform, obtains mixture A；
(3) thermosetting fluoro carbon resin, glyptal, acrylic resin, modified epoxy tree are sequentially added into mixture A
Rouge, controlling the temperature in reaction kettle is 45 DEG C, and pressure 2.5MPa is uniformly mixed, and antioxidant is then added, light is stablized
Agent, ultrasonic wave are uniformly dispersed to get the protective coating for being applied to solar panel rack surface.
Wherein, the time that ultrasonic wave disperses in the step (3) is 13 minutes.
Embodiment 5
The present embodiment is related to a kind of protective coating for being applied to solar panel rack surface, the raw material including following parts by weight: heat
26 parts of solidity fluorocarbon resin, 15 parts of glyptal, 23 parts of acrylic resin, 20 parts of modified epoxy, modified meerschaum 9
Part, 3 parts of nano-titanium dioxide, 1.8 parts of petroleum sodium sulfonate, 3.4 parts of modified micaceous powder, 0.6 part of multi-walled carbon nanotube, antioxidant
1.7 parts, 3.1 parts of light stabilizer and 40 parts of solvent.
Wherein, the modified meerschaum the preparation method is as follows:
(1) sepiolite and water are mixed and are poured into water heating kettle, and surfactant is added, in temperature be 220 DEG C, pressure 4MPa
Under the conditions of, heat-insulation pressure keeping is stirred to react, and is discharged, and filtering obtains filter cake, is stirring after 10% mixed in hydrochloric acid by filter cake and mass fraction
Reaction, using filter, washing, drying and roasting, obtains pretreatment sepiolite；
(2) melamine, glycerol and methanol are uniformly mixed, pretreatment sepiolite are then added, heating stirring is uniformly mixed, cold
But, calcium bicarbonate is added, microwave treatment 7 minutes, is then uniformly mixed, obtains modified meerschaum.
Wherein, the modified epoxy the preparation method is as follows:
(1) polyethylene glycol is added into reactor, acetone I is added after vacuum drying, the acetone soln of polyethylene glycol is obtained, another
Diisocyanate compound, acetone II, catalyst A are added in one reactor, obtains the acetone of diisocyanate compound
The acetone soln of the polyethylene glycol is added drop-wise in the acetone soln of diisocyanate compound by solution, after dripping off, temperature control
40~50 DEG C are reacted 100 minutes, and it is spare to obtain base polyurethane prepolymer for use as；
(2) in extracting epoxy resin investment reactor, solvent propylene glycol methyl ether, acetone III, catalyst B is added after vacuum drying, obtains
To epoxy resin reaction solution, base polyurethane prepolymer for use as obtained by step (1) is added drop-wise in the epoxy resin reaction solution, after dripping off in
60~65 DEG C are reacted 70 minutes, and modified epoxy is obtained.
Wherein, the modified micaceous powder the preparation method is as follows:
(1) 120 DEG C preheating and drying 80 minutes in mica powder drying box are weighed, is then added and accounts for mica powder mass percent 5%
25% ammonia spirit stirs 2.8 hours at 67 DEG C, filters out mica powder, dry；
(2) mica powder is placed in nano silicon dioxide sol, using vacuum impregnation absorbing process, makes nano silicon dioxide sol
It is mixed with mica powder, forms gel, after to be aging, dry, hydrophobic processing forms modified micaceous powder by normal pressure classification.
Wherein, the diameter of the multi-walled carbon nanotube is 30~60nm.
Wherein, the light stabilizer is hindered amine free raical capturing agent.
A method of preparing the protective coating for being applied to solar panel rack surface, comprising the following steps:
(1) thermosetting fluoro carbon resin, glyptal, acrylic resin, modified epoxy, modification are weighed by above-mentioned formula
Sepiolite, nano-titanium dioxide, petroleum sodium sulfonate, modified micaceous powder, multi-walled carbon nanotube, antioxidant, light stabilizer and solvent,
It is spare；
(2) solvent is placed in reaction kettle and is warming up to 48 DEG C, then sequentially add modified meerschaum, nano-titanium dioxide, petroleum
Sodium sulfonate, modified micaceous powder, multi-walled carbon nanotube, high speed dispersion is uniform, obtains mixture A；
(3) thermosetting fluoro carbon resin, glyptal, acrylic resin, modified epoxy tree are sequentially added into mixture A
Rouge, controlling the temperature in reaction kettle is 48 DEG C, and pressure 2.7MPa is uniformly mixed, and antioxidant is then added, light is stablized
Agent, ultrasonic wave are uniformly dispersed to get the protective coating for being applied to solar panel rack surface.
Wherein, the time that ultrasonic wave disperses in the step (3) is 14 minutes.
Comparative example 1
A kind of coating for solar bracket disclosed in the patent of invention of application publication number CN107474671A.
Comparative example 2
Modified meerschaum is replaced using sepiolite, remaining is same as Example 5.
Comparative example 3
Modified epoxy is replaced using ordinary epoxy resin, remaining is same as Example 5.
Comparative example 4:
Modified micaceous powder is replaced using mica powder, remaining is same as Example 5.
Coating performance described in Examples 1 to 5, comparative example 1~4 is tested according to professional standard, test result is such as
Following table:
| Heat resisting temperature (DEG C) | Salt tolerance (10% NaCl solution) | Alkali resistance (10% NaOH solution) | Adhesive force | Hardness | |
| Embodiment 1 | 375 | 375h is without exception | 320h is without exception | 0 | H |
| Embodiment 2 | 380 | 370h is without exception | 315h is without exception | 0 | H |
| Embodiment 3 | 378 | 380h is without exception | 325h is without exception | 0 | H |
| Embodiment 4 | 385 | 380h is without exception | 320h is without exception | 0 | H |
| Embodiment 5 | 386 | 385 h are without exception | 330h is without exception | 0 | H |
| Comparative example 1 | 320 | 320h is without exception | 280h is without exception | 1 | H |
| Comparative example 2 | 335 | 340h is without exception | 300h is without exception | 0 | H |
| Comparative example 3 | 370 | 350h is without exception | 305h is without exception | 1 | H |
| Comparative example 4 | 370 | 350h is without exception | 315h is without exception | 1 | H |
As can be seen from the above table:
(1) heatproof temperature, salt tolerance, the alkali resistance of comparative example 1~5 are superior to comparative example 1, and adhesive force and hardness also superior to
Comparative example 1；
(2) performance parameter of comparative example 2 and the performance parameter of embodiment 5 are compared, the heat resisting temperature and salt tolerance of coating,
Acid resistance performance decreases, and comparative example 5 is not modified epoxy resin.
(3) performance parameter of comparative example 3 and the performance parameter of embodiment 5 are compared, the adhesive force decline of coating is bright
It is aobvious；
(4) performance parameter of comparative example 4 and the performance parameter of embodiment 5 are compared, the adhesive force decline of coating is obvious.
In conclusion the protective coating for being applied to solar panel rack surface that the present invention is prepared is former by controlling it
The type and proportion of material, the coating adhesion being prepared is good, and resistance to acid and alkali is strong, and anti-aging property is excellent, specific as follows:
(1) present invention is using thermosetting fluoro carbon resin, glyptal, acrylic resin, modified epoxy, modified Hai Pao
Stone, nano-titanium dioxide, petroleum sodium sulfonate, modified micaceous powder, multi-walled carbon nanotube, antioxidant, light stabilizer and solvent conduct
Raw material mutually acts synergistically between raw material, and the coating adhesion being prepared is good, and resistance to acid and alkali is strong, and anti-aging property is excellent；
(2) present invention first prepares base polyurethane prepolymer for use as, is then modified with base polyurethane prepolymer for use as to epoxy resin, is made and is modified
Epoxy resin, the modified epoxy resistance to acid and alkali and anti-aging property being prepared get a promotion and the collaboration of other raw materials
It acts on and strict control its preparation process, so that the synergistic effect between raw material is played to optimal, the coating being prepared is acidproof
Alkalinity is good, and anti-aging property is excellent；
(3) present invention pre-processes sepiolite, is then modified, modified sepiolite and modified epoxy etc. are former
There is material good compatibility and other raw materials to act synergistically, and the adhesive force and hardness of coating can be improved.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to 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 substantive content of the invention.
Claims (10)
1. a kind of protective coating for being applied to solar panel rack surface, which is characterized in that the raw material including following parts by weight: heat
20~30 parts of solidity fluorocarbon resin, 13~18 parts of glyptal, 17~26 parts of acrylic resin, modified epoxy 15~
25 parts, 6~13 parts of modified meerschaum, 2~4 parts of nano-titanium dioxide, 1~3 part of petroleum sodium sulfonate, 2~5 parts of modified micaceous powder,
0.3~0.8 part of multi-walled carbon nanotube, 1~2 part of antioxidant, 2~4 parts of light stabilizer and 30~50 parts of solvent,
The modified meerschaum the preparation method is as follows:
(1) sepiolite and water are mixed and are poured into water heating kettle, and surfactant is added, in temperature be 200~240 DEG C, pressure
Under the conditions of 2~5MPa, heat-insulation pressure keeping is stirred to react, and is discharged, and filtering obtains filter cake, is 7~13% salt by filter cake and mass fraction
After acid-mixed is closed, it is stirred to react, using filter, washing, drying and roasting, obtains pretreatment sepiolite；
(2) melamine, glycerol and methanol are uniformly mixed, pretreatment sepiolite are then added, heating stirring is uniformly mixed, cold
But, calcium bicarbonate is added, microwave treatment 5~10 minutes, is then uniformly mixed, obtains modified meerschaum.
2. the protective coating according to claim 1 for being applied to solar panel rack surface, which is characterized in that including following
The raw material of parts by weight: 23~28 parts of thermosetting fluoro carbon resin, 14~16 parts of glyptal, 20~25 parts of acrylic resin,
18~22 parts of modified epoxy, 7~11 parts of modified meerschaum, 2.5~3.5 parts of nano-titanium dioxide, petroleum sodium sulfonate 1.6~
2.3 parts, 3~4 parts of modified micaceous powder, 0.4~0.7 part of multi-walled carbon nanotube, 1.4~1.9 parts of antioxidant, light stabilizer 2.8~
3.3 parts and 35~45 parts of solvent.
3. the protective coating according to claim 1 for being applied to solar panel rack surface, which is characterized in that including following
The raw material of parts by weight: 26 parts of thermosetting fluoro carbon resin, 15 parts of glyptal, 23 parts of acrylic resin, modified epoxy
20 parts, 9 parts of modified meerschaum, 3 parts of nano-titanium dioxide, 1.8 parts of petroleum sodium sulfonate, 3.4 parts of modified micaceous powder, multi-wall carbon nano-tube
0.6 part of pipe, 1.7 parts of antioxidant, 3.1 parts of light stabilizer and 40 parts of solvent.
4. the protective coating according to claim 1 for being applied to solar panel rack surface, which is characterized in that the modification
Sepiolite the preparation method is as follows:
(1) sepiolite and water are mixed and are poured into water heating kettle, and surfactant is added, in temperature be 220 DEG C, pressure 4MPa
Under the conditions of, heat-insulation pressure keeping is stirred to react, and is discharged, and filtering obtains filter cake, is stirring after 10% mixed in hydrochloric acid by filter cake and mass fraction
Reaction, using filter, washing, drying and roasting, obtains pretreatment sepiolite；
(2) melamine, glycerol and methanol are uniformly mixed, pretreatment sepiolite are then added, heating stirring is uniformly mixed, cold
But, calcium bicarbonate is added, microwave treatment 7 minutes, is then uniformly mixed, obtains modified meerschaum.
5. the protective coating according to claim 1 for being applied to solar panel rack surface, which is characterized in that the modification
Epoxy resin the preparation method is as follows:
(1) polyethylene glycol is added into reactor, acetone I is added after vacuum drying, the acetone soln of polyethylene glycol is obtained, another
Diisocyanate compound, acetone II, catalyst A are added in one reactor, obtains the acetone of diisocyanate compound
The acetone soln of the polyethylene glycol is added drop-wise in the acetone soln of diisocyanate compound by solution, after dripping off, temperature control
40~50 DEG C are reacted 100 minutes, and it is spare to obtain base polyurethane prepolymer for use as；
(2) in extracting epoxy resin investment reactor, solvent propylene glycol methyl ether, acetone III, catalyst B is added after vacuum drying, obtains
To epoxy resin reaction solution, base polyurethane prepolymer for use as obtained by step (1) is added drop-wise in the epoxy resin reaction solution, after dripping off in
60~65 DEG C are reacted 70 minutes, and modified epoxy is obtained.
6. the protective coating according to claim 1 for being applied to solar panel rack surface, which is characterized in that the modification
Mica powder the preparation method is as follows:
(1) 100~130 DEG C preheating and drying 60~90 minutes in mica powder drying box are weighed, is then added and accounts for mica powder quality hundred
Divide 25% ammonia spirit than 5%, is stirred 2~3 hours at 60~70 DEG C, filter out mica powder, it is dry；
(2) mica powder is placed in nano silicon dioxide sol, using vacuum impregnation absorbing process, makes nano silicon dioxide sol
It is mixed with mica powder, forms gel, after to be aging, dry, hydrophobic processing forms modified micaceous powder by normal pressure classification.
7. the protective coating according to claim 1 for being applied to solar panel rack surface, which is characterized in that the multi wall
The diameter of carbon nanotube is 30~60nm.
8. the protective coating according to claim 1 for being applied to solar panel rack surface, which is characterized in that the light is steady
Determining agent is ultraviolet absorbing agent or hindered amine free raical capturing agent.
9. a kind of prepare the method that the protective coating of solar panel rack surface is applied to described in any one of claim 1~8,
It is characterized in that, comprising the following steps:
(1) thermosetting fluoro carbon resin, glyptal, acrylic resin, modified epoxy, modification are weighed by above-mentioned formula
Sepiolite, nano-titanium dioxide, petroleum sodium sulfonate, modified micaceous powder, multi-walled carbon nanotube, antioxidant, light stabilizer and solvent,
It is spare；
(2) solvent is placed in reaction kettle and is warming up to 40~50 DEG C, then sequentially add modified meerschaum, nano-titanium dioxide,
Petroleum sodium sulfonate, modified micaceous powder, multi-walled carbon nanotube, high speed dispersion is uniform, obtains mixture A；
(3) thermosetting fluoro carbon resin, glyptal, acrylic resin, modified epoxy tree are sequentially added into mixture A
Rouge, controlling the temperature in reaction kettle is 40~50 DEG C, and pressure is 2~3MPa, is uniformly mixed, and antioxidant, light is then added
Stabilizer, ultrasonic wave are uniformly dispersed to get the protective coating for being applied to solar panel rack surface.
10. preparation method according to claim 9, which is characterized in that the time of ultrasonic wave dispersion is in the step (3)
10~15 minutes.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110511627A (en) * | 2019-10-09 | 2019-11-29 | 无锡新而奇化工科技有限公司 | A kind of self-clean type FEVE fluorocarbon coating and preparation method thereof |
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