CN106854412A - A kind of wear-resisting antifouling double-component polyurethane coating and preparation method thereof - Google Patents

A kind of wear-resisting antifouling double-component polyurethane coating and preparation method thereof Download PDF

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Publication number
CN106854412A
CN106854412A CN201611133840.0A CN201611133840A CN106854412A CN 106854412 A CN106854412 A CN 106854412A CN 201611133840 A CN201611133840 A CN 201611133840A CN 106854412 A CN106854412 A CN 106854412A
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coating
component
wear
polyurethane
white
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汤子宁
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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
    • C09D151/00—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
    • C09D151/08—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
    • C08F283/006—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polymers provided for in C08G18/00
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6666—Compounds of group C08G18/48 or C08G18/52
    • C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
    • C08G18/6688—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3271
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/73—Polyisocyanates or polyisothiocyanates acyclic
    • 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
    • C09D5/16—Antifouling paints; Underwater paints
    • C09D5/1606—Antifouling paints; Underwater paints characterised by the anti-fouling agent
    • C09D5/1612—Non-macromolecular compounds
    • C09D5/1625—Non-macromolecular compounds organic
    • 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
    • C09D5/16—Antifouling paints; Underwater paints
    • C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
    • C09D5/1662—Synthetic film-forming substance
    • 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
    • C09D5/16—Antifouling paints; Underwater paints
    • C09D5/1687—Use of special additives
    • 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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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The invention discloses wear-resisting antifouling double-component polyurethane coating of one kind and preparation method thereof, it is formulated by the raw material of following weight portion：Polyoxypropyleneglycol 70 80, hexamethylene diisocyanate 140 150, sorbierite 46, monoethanolamine 24, acrylate 79, dipropylene glycol dibenzoate 56, peroxidating trimethylacetic acid tertiary butyl ester 23 etc..The present invention is coordinated as film forming matter using polyurethane, acrylate etc., the present invention is possessed good film forming characteristics；The raw materials such as sub-white corundum fine powder, white graphite, the aluminium titanates of addition, can be in the presence of polypropylene glycol, sodium metnylene bis-naphthalene sulfonate, uniformly, it is dispersed stably in coating, the abrasive resistance of coating can be strengthened, the raw materials such as dipropylene glycol dibenzoate, the tridecafluoro-n-octyltriethoxysilane of addition, can improve antifouling, the water resistance of coating.

Description

A kind of wear-resisting antifouling double-component polyurethane coating and preparation method thereof
Technical field
The present invention relates to a kind of coating, a kind of wear-resisting antifouling double-component polyurethane coating and its preparation are concretely related to Method.
Background technology
Polyurethane coating is a class coating more typical at present, can be divided into bicomponent polyurethane coating and single group segregation ammonia Ester paint.Bicomponent polyurethane coating is usually to be made up of isocyanate prepolymer and hydroxy-containing resin two parts, commonly referred to Curing agent component and host component.The various types of this class coating, range of application is also very wide, according to the difference of hydroxy-containing component The kinds such as acroleic acid polyurethane, alcohol acid and polyurethane, polyester-polyurethane, polyether-polyurethane, epoxy polyurethane can be divided into.Typically all have There are good mechanical performance, solids content higher, the performance of each side all relatively good, be a class rising at present Coating variety.Main application direction has woodwork coating, automobile repairing paint, anticorrosive paint, floor paint, electronic paint, extraordinary painting Material, polyurethane water-proof paint etc..One-can urethane coating mainly has urethane oil paint, moisture solidification polyurethane coating, closing The kinds such as type polyurethane coating.Application surface is wide not as two-component coating, is mainly used in floor paint, anticorrosive paint, pre- coiled material and applies Material etc., its overall performance is comprehensive not as two-component coating.Because coating generally requires the outer surface for being attached to object, so can be through Often rubbed by other objects, or adhered to by some dirts, influenceed attractive in appearance, it is therefore desirable to a kind of wear-resisting Anti-fouling polyurethanes coating.
The content of the invention
It is an object of the invention to provide wear-resisting antifouling double-component polyurethane coating of one kind and preparation method thereof.
To reach above-mentioned purpose, the technical solution used in the present invention is：
A kind of wear-resisting antifouling double-component polyurethane coating, is formulated by the raw material of following weight portion：Polyoxypropyleneglycol 70- 80th, hexamethylene diisocyanate 140-150, sorbierite 4-6, monoethanolamine 2-4, acrylate 7-9, dipropylene glycol hexichol Formic acid esters 5-6, peroxidating trimethylacetic acid tertiary butyl ester 2-3, cobalt naphthenate 1-2, polypropylene glycol 12-14, sub-white corundum fine powder 14- 16th, white graphite 6-8, inulin lauryl carbamate 7-9, tridecafluoro-n-octyltriethoxysilane 3-5, Lime Hypophosphate 4- 7th, aluminium titanates 6-8, Tissuemat E 8-10, HEMC 4-7, sodium metnylene bis-naphthalene sulfonate 2-3, polyoxypropylene are sweet Oily ether 3-6, pentaerythritol stearic acid ester 2 5-8, calcium stearate 7-9, cetyl dimethicone 8-10, propandiol butyl ether 5-7, polyvinylpyrrolidone 2-4, appropriate deionized water.
A kind of preparation method of wear-resisting antifouling double-component polyurethane coating, comprises the following steps：
（1）It is 1: 2-3 mixing according to mol ratio by polyoxypropyleneglycol, hexamethylene diisocyanate, in nitrogen atmosphere 60-80min is reacted in 55-75 DEG C, sorbierite is added, NCO/OH mol ratios are 1.2-1.4 in regulation system, anti-at 60-80 DEG C 100-150min is answered, monoethanolamine is subsequently adding, 40-60min is reacted at 40-60 DEG C, obtain base polyurethane prepolymer for use as；
（2）Sequentially add acrylate, dipropylene glycol dibenzoate, peroxidating uncle penta by weight in a kettle. Sour tertiary butyl ester, cobalt naphthenate, polypropylene glycol, then stirring heat up, and treat that temperature is raised to 65 DEG C of disposable addition polyurethane before Performed polymer, then temperature is raised to 85-90 DEG C, 40-50 DEG C is cooled to after insulation reaction 2-3h, obtain final product component A；
（3）To addition sub-white corundum fine powder, white graphite, inulin lauryl carbamate, the second of ten trifluoro octyl group three in mill TMOS, Lime Hypophosphate, aluminium titanates, Tissuemat E, HEMC, sodium metnylene bis-naphthalene sulfonate, polyoxy third Alkene glycerin ether, pentaerythritol stearic acid ester 2, calcium stearate, cetyl dimethicone, propandiol butyl ether, polyethylene pyrrole The raw materials such as pyrrolidone, are vacuumized after mixing 8-10min at a temperature of 130-150 DEG C, and 80-100min is stood under vacuum condition, Then 45-50 μm of fineness is ground to using three-roller, obtains B component；
（4）Component A and B component are pressed 1：（0.4-0.5）Ratio mixing after, add appropriate ionized water be well mixed, i.e., Obtain the coating.
Beneficial effects of the present invention：
The present invention is coordinated as film forming matter using polyurethane, acrylate etc., the present invention is possessed good film forming characteristics；Add Plus the raw material such as sub-white corundum fine powder, white graphite, aluminium titanates, can in the presence of polypropylene glycol, sodium metnylene bis-naphthalene sulfonate, Uniformly, it is dispersed stably in coating, can strengthens the abrasive resistance of coating, the dipropylene glycol dibenzoate of addition, The raw materials such as tridecafluoro-n-octyltriethoxysilane, can improve antifouling, the water resistance of coating.
Specific embodiment
Technical scheme of the present invention is further described with reference to specific embodiment.
Embodiment 1：
A kind of wear-resisting antifouling double-component polyurethane coating, by following weight portion（kg）Raw material be formulated：PPOX two Alcohol 70, hexamethylene diisocyanate 140, sorbierite 4, monoethanolamine 2, acrylate 7, dipropylene glycol dibenzoate 5, Peroxidating trimethylacetic acid tertiary butyl ester 2, cobalt naphthenate 1, polypropylene glycol 12, sub-white corundum fine powder 14, white graphite 6, inulin lauryl base Carbamate 7, tridecafluoro-n-octyltriethoxysilane 3, Lime Hypophosphate 4, aluminium titanates 6, Tissuemat E 8, hydroxyethyl methyl Cellulose 4, sodium metnylene bis-naphthalene sulfonate 2, polypropylene glycerol aether 3, pentaerythritol stearic acid ester 25, calcium stearate 7, spermaceti Base dimethyl silicone polymer 8, propandiol butyl ether 5, polyvinylpyrrolidone 2, appropriate deionized water.
A kind of preparation method of wear-resisting antifouling double-component polyurethane coating, comprises the following steps：
（1）It is 1: 2-3 mixing according to mol ratio by polyoxypropyleneglycol, hexamethylene diisocyanate, in nitrogen atmosphere 60-80min is reacted in 55-75 DEG C, sorbierite is added, NCO/OH mol ratios are 1.2-1.4 in regulation system, anti-at 60-80 DEG C 100-150min is answered, monoethanolamine is subsequently adding, 40-60min is reacted at 40-60 DEG C, obtain base polyurethane prepolymer for use as；
（2）Sequentially add acrylate, dipropylene glycol dibenzoate, peroxidating uncle penta by weight in a kettle. Sour tertiary butyl ester, cobalt naphthenate, polypropylene glycol, then stirring heat up, and treat that temperature is raised to 65 DEG C of disposable addition polyurethane before Performed polymer, then temperature is raised to 85-90 DEG C, 40-50 DEG C is cooled to after insulation reaction 2-3h, obtain final product component A；
（3）To addition sub-white corundum fine powder, white graphite, inulin lauryl carbamate, the second of ten trifluoro octyl group three in mill TMOS, Lime Hypophosphate, aluminium titanates, Tissuemat E, HEMC, sodium metnylene bis-naphthalene sulfonate, polyoxy third Alkene glycerin ether, pentaerythritol stearic acid ester 2, calcium stearate, cetyl dimethicone, propandiol butyl ether, polyethylene pyrrole The raw materials such as pyrrolidone, are vacuumized after mixing 8-10min at a temperature of 130-150 DEG C, and 80-100min is stood under vacuum condition, Then 45-50 μm of fineness is ground to using three-roller, obtains B component；
（4）Component A and B component are pressed 1：（0.4-0.5）Ratio mixing after, add appropriate ionized water be well mixed, i.e., Obtain the coating.
Embodiment 2：
A kind of wear-resisting antifouling double-component polyurethane coating, by following weight portion（kg）Raw material be formulated：PPOX two Alcohol 75, hexamethylene diisocyanate 145, sorbierite 5, monoethanolamine 3, acrylate 8, dipropylene glycol dibenzoate 5.5th, peroxidating trimethylacetic acid tertiary butyl ester 2.5, cobalt naphthenate 1.5, polypropylene glycol 13, sub-white corundum fine powder 15, white graphite 7, chrysanthemum Powder lauryl carbamate 8, tridecafluoro-n-octyltriethoxysilane 4, Lime Hypophosphate 5.5, aluminium titanates 7, Tissuemat E 9, HEMC 5.5, sodium metnylene bis-naphthalene sulfonate 2.5, polypropylene glycerol aether 4.5, pentaerythritol stearic acid ester 2 6.5th, calcium stearate 8, cetyl dimethicone 9, propandiol butyl ether 6, polyvinylpyrrolidone 3, appropriate deionized water.
Preparation method is with embodiment 1.
Embodiment 3：
A kind of wear-resisting antifouling double-component polyurethane coating, it is characterised in that by following weight portion（kg）Raw material be formulated：It is poly- Propylene oxide glycol 80, hexamethylene diisocyanate 150, sorbierite 6, monoethanolamine 4, acrylate 9, dipropylene glycol two Benzoic ether 6, peroxidating trimethylacetic acid tertiary butyl ester 3, cobalt naphthenate 2, polypropylene glycol 14, sub-white corundum fine powder 16, white graphite 8, Inulin lauryl carbamate 9, tridecafluoro-n-octyltriethoxysilane 5, Lime Hypophosphate 7, aluminium titanates 8, Tissuemat E 10th, HEMC 7, sodium metnylene bis-naphthalene sulfonate 3, polypropylene glycerol aether 6, pentaerythritol stearic acid ester 28, Calcium stearate 9, cetyl dimethicone 10, propandiol butyl ether 7, polyvinylpyrrolidone 4, appropriate deionized water.
Preparation method is with embodiment 1.
The performance test results of wear-resisting Anti-fouling polyurethanes coating are as shown in the table obtained in above-described embodiment 1-3：
The performance test results of wear-resisting Anti-fouling polyurethanes coating obtained in the embodiment 1-3 of table 1
Embodiment 1 Embodiment 2 Embodiment 3
Abrasion loss, mg 2.2 1.7 1.9
Coating water contact angle, ° 104.6 105.8 102.7
Coating oil contact angle, ° 56 59 57
Coating light transmittance, % 90.4 92.3 91.8

Claims (2)

1. a kind of wear-resisting antifouling double-component polyurethane coating, it is characterised in that be formulated by the raw material of following weight portion：Polyoxy Change propylene glycol 70-80, hexamethylene diisocyanate 140-150, sorbierite 4-6, monoethanolamine 2-4, acrylate 7-9, one Contracting dipropylene glycol dibenzoate 5-6, peroxidating trimethylacetic acid tertiary butyl ester 2-3, cobalt naphthenate 1-2, polypropylene glycol 12-14, Asia White fused alumina fine powder 14-16, white graphite 6-8, inulin lauryl carbamate 7-9, tridecafluoro-n-octyltriethoxysilane 3-5, Lime Hypophosphate 4-7, aluminium titanates 6-8, Tissuemat E 8-10, HEMC 4-7, sodium metnylene bis-naphthalene sulfonate 2- 3rd, polypropylene glycerol aether 3-6, pentaerythritol stearic acid ester 2 5-8, calcium stearate 7-9, cetyl dimethicone 8- 10th, propandiol butyl ether 5-7, polyvinylpyrrolidone 2-4, appropriate deionized water.
2. a kind of preparation method of wear-resisting antifouling double-component polyurethane coating according to claim 1, it is characterised in that bag Include following steps：
（1）It is 1: 2-3 mixing according to mol ratio by polyoxypropyleneglycol, hexamethylene diisocyanate, in nitrogen atmosphere 60-80min is reacted in 55-75 DEG C, sorbierite is added, NCO/OH mol ratios are 1.2-1.4 in regulation system, anti-at 60-80 DEG C 100-150min is answered, monoethanolamine is subsequently adding, 40-60min is reacted at 40-60 DEG C, obtain base polyurethane prepolymer for use as；
（2）Sequentially add acrylate, dipropylene glycol dibenzoate, peroxidating uncle penta by weight in a kettle. Sour tertiary butyl ester, cobalt naphthenate, polypropylene glycol, then stirring heat up, and treat that temperature is raised to 65 DEG C of disposable addition polyurethane before Performed polymer, then temperature is raised to 85-90 DEG C, 40-50 DEG C is cooled to after insulation reaction 2-3h, obtain final product component A；
（3）To addition sub-white corundum fine powder, white graphite, inulin lauryl carbamate, the second of ten trifluoro octyl group three in mill TMOS, Lime Hypophosphate, aluminium titanates, Tissuemat E, HEMC, sodium metnylene bis-naphthalene sulfonate, polyoxy third Alkene glycerin ether, pentaerythritol stearic acid ester 2, calcium stearate, cetyl dimethicone, propandiol butyl ether, polyethylene pyrrole The raw materials such as pyrrolidone, are vacuumized after mixing 8-10min at a temperature of 130-150 DEG C, and 80-100min is stood under vacuum condition, Then 45-50 μm of fineness is ground to using three-roller, obtains B component；
（4）Component A and B component are pressed 1：（0.4-0.5）Ratio mixing after, add appropriate ionized water be well mixed, i.e., Obtain the coating.
CN201611133840.0A 2016-12-10 2016-12-10 A kind of wear-resisting antifouling double-component polyurethane coating and preparation method thereof Pending CN106854412A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101255311A (en) * 2008-04-10 2008-09-03 武汉理工大学 Main agent of metal pipe abrasion-proof paint
CN104610869A (en) * 2015-02-05 2015-05-13 林爱娜 Waterproof anti-fouling waterborne polyurethane coating and preparation method thereof
CN104893642A (en) * 2015-05-29 2015-09-09 饶玉明 High-strength flame retardant polyurethane sealant
CN105131820A (en) * 2015-09-21 2015-12-09 黄利锟 Polyurethane composite resin paint resistant to friction and dirt as well as preparation method of paint

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101255311A (en) * 2008-04-10 2008-09-03 武汉理工大学 Main agent of metal pipe abrasion-proof paint
CN104610869A (en) * 2015-02-05 2015-05-13 林爱娜 Waterproof anti-fouling waterborne polyurethane coating and preparation method thereof
CN104893642A (en) * 2015-05-29 2015-09-09 饶玉明 High-strength flame retardant polyurethane sealant
CN105131820A (en) * 2015-09-21 2015-12-09 黄利锟 Polyurethane composite resin paint resistant to friction and dirt as well as preparation method of paint

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Application publication date: 20170616