CN105482661A - Weather-resistant and antibacterial polyester powder coating and preparing method thereof - Google Patents
Weather-resistant and antibacterial polyester powder coating and preparing method thereof Download PDFInfo
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- CN105482661A CN105482661A CN201510944027.0A CN201510944027A CN105482661A CN 105482661 A CN105482661 A CN 105482661A CN 201510944027 A CN201510944027 A CN 201510944027A CN 105482661 A CN105482661 A CN 105482661A
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- powder coating
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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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
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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
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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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
-
- 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
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Plant Pathology (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a weather-resistant and antibacterial polyester powder coating. According to the weather-resistant and antibacterial polyester powder coating, a TGIC curing agent is replaced with beta-hydroxy alkyl amide, toxicity is low, curing temperature is low, and energy saving and environmental protection are achieved; as far infrared ceramic powder and nanometer titania are grafted and modified through ethylene glycol monoethyl ether acetate, the dispersibility and the interface contact performance of the far infrared ceramic powder and the nanometer titania in polyester resin are improved, the coating suitability and the self-cleaning performance of the coating are improved, and pollution resistance is improved; as modified perfluoropolyether is further added, the production technology is simple, and operation is easy and convenient; the prepared powder coating has excellent weather resistance and is antibacterial, free of toxicity and free of a solvent and volatile toxic substances, and the environment-friendly requirement is met; in addition, the use ratio of raw materials is high, over-sprayed powder can be recycled, a compact coating is formed after spraying, and adhesive force and impact resistance are good.
Description
Technical field
The present invention relates to technical field of coatings, particularly relate to a kind of weathering antibacterial polyester powder coating and preparation method thereof.
Background technology
Powder coating is a kind of novel not containing solvent 100% solid powdery coating.There is solvent-free, pollution-free, recyclable, environmental protection, the saving energy and resource, reduce labor intensity and film physical strength high.Heat curable powder coating refers to using thermosetting resin as filmogen, and the solidifying agent having added crosslinking reaction can form insoluble not molten quality hard coat after heating.Thermosetting powder coating(s) because of the levelling property of its coating better, by force ornamental, and low-molecular-weight prepolymer is after solidification, and can form the macromole of cross-linked network, thus coating has better preservative property and mechanical property, therefore thermosetting powder coating(s) development is particularly rapid.
Pure polyester type powder paint, because having excellent weathering resistance, is commonly called Weather-resisting powder coating.Pure polyester type powder paint is widely used in the fields such as automobile, machinery, instrument and construction industry.Its shortcoming is that cross-linking density is lower, and the solidification value of needs is higher, lower to the sticking power of coated article.The existing weather-resistance powder coatings of China, still takes as the leading factor with polyester/TGIC, but its weathering resistance can not show a candle to fluorocarbon powder paint.But the fluorocarbon resin technology that China is used for powder coating is still immature, and extremely expensive from its price of external import.Therefore, the weather-resistance powder coatings of a kind of low cost of research and development is badly in need of, to meet the demand of demestic user.
" research of perfluoropolyether-modified polyester powder coating " one literary grace melting copolymerization method synthesize perfluoropolyether-modified vibrin, in polyester molecule chain, introduce the PFPE side chain of relative molecular mass about 3000.This literary composition is with TGIC(isocyanuric acid three-glycidyl ester) be solidifying agent, with the powder coating that this resin is made, not only have superpower preservative property and weathering resistance, and have good hydrophobicity, oleophobic property and automatically cleaning effect, cost is low is widely used in every field.
But the condition of cure of polyester/TGIC system is harsh: TGIC is poisonous, solidification value higher (>200 DEG C), set time longer (10-30min), higher solidification value makes its energy consumption high, baking time is long, directly cause the production cycle elongated, labour productivity can not get effective raising.Meanwhile, harsh condition of cure makes powder coating can only for heat-resisting metal substrate, is not suitable for the thermosensitive type grounds such as wooden, papery, plastics, seriously constrains the application of powder coating, need to carry out improving existing processing condition and method.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, provides a kind of weathering antibacterial polyester powder coating and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of weathering antibacterial polyester powder coating, is made up of the raw material of following weight part: vibrin 72-73, PFPE 21-23, nano titanium oxide 1.2-1.5, nickel oxide 2.1-2.4, far infrared ceramic powder 13-15, straw charcoal 10-12, hydrogenated castor oil 1-2, ethylene glycol ether acetate 5-7, sucrose 0.9-1.2, sodium metaborate 0.1-0.3, beta-hydroxy alkylamide 3.5-4.1, pigment 6-8.
The making method of described a kind of weathering antibacterial polyester powder coating, comprises the following steps:
(1) nickel oxide is calcined 30-40 minute at 860-900 DEG C, be cooled to 130-150 DEG C and add PFPE, sodium metaborate stirring and evenly mixing, 200-300 rev/min of dispersed with stirring 4-6 minute, adds hydrogenated castor oil and is stirred to room-temperature ball-milling 1-2 hour, obtain modification PFPE;
(2) far infrared ceramic powder being scattered in the mass concentration be mixed with by sucrose is obtain suspension in the aqueous solution of 5-8%, suspension is placed in 80-90 DEG C of water bath with thermostatic control and leaves standstill 3-5 hour, add nano titanium oxide, straw charcoal stirs and ultrasonic grinding 30-40 minute, dropwise drip ethylene glycol ether acetate, within 30-50 minute, drip off, continue insulation 30-50 minute, adjust ph 7-8, be cooled to normal temperature rapidly, filtration under diminished pressure, washing are also dry;
(3) vibrin is dropped in high mixer, add step (1), step (2) material and other remaining component stirring and evenly mixings, melt extrude through twin screw extruder, compressing tablet, air-cooled, abrasive dust, cross 160-180 mesh sieve, to obtain final product.
Advantage of the present invention is: the present invention adopts beta-hydroxy alkylamide to substitute TGIC solidifying agent, toxicity is little and solidification value is low, energy-conserving and environment-protective, by far infrared ceramic powder, nano titanium oxide improves its dispersiveness in vibrin and interracial contact after ethylene glycol ether acetate graft modification, improve coatability energy and the self-cleaning performance of coating, resistance to soiling improves, add again modified PFPE, production technique simple operations is easy, obtained powder coating has excellent weathering resistance, antibacterial not containing toxicity, not containing solvent and the toxic material of volatilization, meet environmental requirement, and raw material availability is high, cross the powder recoverable of spray, the coating of one deck densification is formed after spraying, sticking power, good impact resistance.
Embodiment
A kind of weathering antibacterial polyester powder coating, is made up of the raw material of following weight part: vibrin 72, PFPE 21, nano titanium oxide 1.2, nickel oxide 2.1, far infrared ceramic powder 13, straw charcoal 10, hydrogenated castor oil 1, ethylene glycol ether acetate 5, sucrose 0.9, sodium metaborate 0.1, beta-hydroxy alkylamide 3.5, pigment 6.
The making method of described a kind of weathering antibacterial polyester powder coating, comprises the following steps:
(1) nickel oxide is calcined 30-40 minute at 860-900 DEG C, be cooled to 130-150 DEG C and add PFPE, sodium metaborate stirring and evenly mixing, 200-300 rev/min of dispersed with stirring 4-6 minute, adds hydrogenated castor oil and is stirred to room-temperature ball-milling 1-2 hour, obtain modification PFPE;
(2) far infrared ceramic powder being scattered in the mass concentration be mixed with by sucrose is obtain suspension in the aqueous solution of 5-8%, suspension is placed in 80-90 DEG C of water bath with thermostatic control and leaves standstill 3-5 hour, add nano titanium oxide, straw charcoal stirs and ultrasonic grinding 30-40 minute, dropwise drip ethylene glycol ether acetate, within 30-50 minute, drip off, continue insulation 30-50 minute, adjust ph 7-8, be cooled to normal temperature rapidly, filtration under diminished pressure, washing are also dry;
(3) vibrin is dropped in high mixer, add step (1), step (2) material and other remaining component stirring and evenly mixings, melt extrude through twin screw extruder, compressing tablet, air-cooled, abrasive dust, cross 160-180 mesh sieve, to obtain final product.
The technical parameter index of the polyester powder coating using the present invention to produce is as follows:
(1) resistance to impact shock (kN/cm): 52.6;
(2) sticking power (level): 2;
(3) resistance to neutral salt spray/h: be greater than 2000;
(4) strong basicity resisting (30%NaOH)/h:480.
Claims (2)
1. a weathering antibacterial polyester powder coating, it is characterized in that, be made up of the raw material of following weight part: vibrin 72-73, PFPE 21-23, nano titanium oxide 1.2-1.5, nickel oxide 2.1-2.4, far infrared ceramic powder 13-15, straw charcoal 10-12, hydrogenated castor oil 1-2, ethylene glycol ether acetate 5-7, sucrose 0.9-1.2, sodium metaborate 0.1-0.3, beta-hydroxy alkylamide 3.5-4.1, pigment 6-8.
2. the making method of a kind of weathering antibacterial polyester powder coating according to claim 1, is characterized in that comprising the following steps:
(1) nickel oxide is calcined 30-40 minute at 860-900 DEG C, be cooled to 130-150 DEG C and add PFPE, sodium metaborate stirring and evenly mixing, 200-300 rev/min of dispersed with stirring 4-6 minute, adds hydrogenated castor oil and is stirred to room-temperature ball-milling 1-2 hour, obtain modification PFPE;
(2) far infrared ceramic powder being scattered in the mass concentration be mixed with by sucrose is obtain suspension in the aqueous solution of 5-8%, suspension is placed in 80-90 DEG C of water bath with thermostatic control and leaves standstill 3-5 hour, add nano titanium oxide, straw charcoal stirs and ultrasonic grinding 30-40 minute, dropwise drip ethylene glycol ether acetate, within 30-50 minute, drip off, continue insulation 30-50 minute, adjust ph 7-8, be cooled to normal temperature rapidly, filtration under diminished pressure, washing are also dry;
(3) vibrin is dropped in high mixer, add step (1), step (2) material and other remaining component stirring and evenly mixings, melt extrude through twin screw extruder, compressing tablet, air-cooled, abrasive dust, cross 160-180 mesh sieve, to obtain final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510944027.0A CN105482661A (en) | 2015-12-17 | 2015-12-17 | Weather-resistant and antibacterial polyester powder coating and preparing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510944027.0A CN105482661A (en) | 2015-12-17 | 2015-12-17 | Weather-resistant and antibacterial polyester powder coating and preparing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105482661A true CN105482661A (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510944027.0A Pending CN105482661A (en) | 2015-12-17 | 2015-12-17 | Weather-resistant and antibacterial polyester powder coating and preparing method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN105482661A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1450133A (en) * | 2003-04-12 | 2003-10-22 | 宁波市鄞州东海粉末涂料有限公司 | Nano polyester powder coating |
| CN103265878A (en) * | 2013-05-23 | 2013-08-28 | 天津翔盛粉末涂料有限公司 | Powder coating for vacuum coating and bottom layer of metal substrate and preparation method of powder coating |
-
2015
- 2015-12-17 CN CN201510944027.0A patent/CN105482661A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1450133A (en) * | 2003-04-12 | 2003-10-22 | 宁波市鄞州东海粉末涂料有限公司 | Nano polyester powder coating |
| CN103265878A (en) * | 2013-05-23 | 2013-08-28 | 天津翔盛粉末涂料有限公司 | Powder coating for vacuum coating and bottom layer of metal substrate and preparation method of powder coating |
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Application publication date: 20160413 |
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| RJ01 | Rejection of invention patent application after publication |