CN105440907A - High-temperature-resistant polyester powder coating and preparation method thereof - Google Patents

High-temperature-resistant polyester powder coating and preparation method thereof Download PDF

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Publication number
CN105440907A
CN105440907A CN201510944003.5A CN201510944003A CN105440907A CN 105440907 A CN105440907 A CN 105440907A CN 201510944003 A CN201510944003 A CN 201510944003A CN 105440907 A CN105440907 A CN 105440907A
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Prior art keywords
powder coating
minute
coating
beta
add
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CN201510944003.5A
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Chinese (zh)
Inventor
张庆
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Wuhu Baoyi Amusement Equipment Co Ltd
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Wuhu Baoyi Amusement Equipment Co Ltd
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Priority to CN201510944003.5A priority Critical patent/CN105440907A/en
Publication of CN105440907A publication Critical patent/CN105440907A/en
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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
    • 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
    • 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
    • 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
    • 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
    • C09D7/65—Additives macromolecular
    • 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
    • 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
    • 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 high-temperature-resistant polyester powder coating; beta-hydroxyalkylamide is used for replacing a TGIC curing agent, and has the advantages of low toxicity, low curing temperature, energy saving and environmental protection; after a bluestone powder and nano titanium dioxide are subjected to graft modification by origanum oil, dispersity and interface contact in polyester resin are increased, coatability and self-cleaning performance of the coating are improved, and the staining resistance is increased; moreover, with addition of modified furan resin, the mechanical properties of the powder coating are optimized; the prepared powder coating has the advantages of high fullness, water resistance and high temperature resistance, normal work under high temperature conditions, good diffuse reflection effect, and soft and uniform light; and through addition of a modification auxiliary material, the heat conducting effect of a coating layer is enhanced, and the adhesive force of the power coating on an object surface is improved.

Description

A kind of resistant to elevated temperatures polyester powder coating and preparation method thereof
Technical field
The present invention relates to technical field of coatings, particularly relate to a kind of resistant to elevated temperatures 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 resistant to elevated temperatures polyester powder coating and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of resistant to elevated temperatures polyester powder coating, is made up of the raw material of following weight part: vibrin 64-68, furane resin 20-22, polyacrylic ester 12-14, nano titanium oxide 1.8-1.9, silicon boride micro mist 0.5-0.7, bluestone powder 18-20, wild marjoram oil 5-7, Wool wax alcohol Soxylat A 25-7 2.3-2.5, beta-glucan 3.1-3.3, coffee grounds 4-6, beta-hydroxy alkylamide 3.4-4.7, pigment 6-7.
The making method of described a kind of resistant to elevated temperatures polyester powder coating, comprises the following steps:
(1) coffee grounds is calcined 30-40 minute at 450-500 DEG C, be cooled to 100-120 DEG C and add furane resin, silicon boride micro mist stirring and evenly mixing, be warming up to 180-190 DEG C, 200-300 rev/min of dispersed with stirring 4-6 minute, add beta-glucan and be stirred to room-temperature ball-milling 1-2 hour, obtain modified furan resin;
(2) bluestone powder being scattered in the mass concentration be mixed with by Wool wax alcohol Soxylat A 25-7 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 to stir and ultrasonic disperse 30-40 minute, dropwise drip wild marjoram oil, 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 bluestone powder, nano titanium oxide improves its dispersiveness in vibrin and interracial contact after wild marjoram oil graft modification, improve coatability energy and the self-cleaning performance of coating, resistance to soiling improves, add again modified furane resin, optimize the mechanical property of powder coating, obtained powder coating has high fullness ratio, water tolerance and high thermal resistance, normally work in the case of a high temperature, diffuse effect is good, light is evenly soft, and help material by adding modification, strengthen the heat-conducting effect of coating, improve powder coating to body surface sticking power.
Embodiment
A kind of resistant to elevated temperatures polyester powder coating, is made up of the raw material of following weight part: vibrin 64, furane resin 20, polyacrylic ester 12, nano titanium oxide 1.8, silicon boride micro mist 0.5, bluestone powder 18, wild marjoram oil 5, Wool wax alcohol Soxylat A 25-7 2.3, beta-glucan 3.1, coffee grounds 4, beta-hydroxy alkylamide 3.4, pigment 6.
The making method of described a kind of resistant to elevated temperatures polyester powder coating, comprises the following steps:
(1) coffee grounds is calcined 30-40 minute at 450-500 DEG C, be cooled to 100-120 DEG C and add furane resin, silicon boride micro mist stirring and evenly mixing, be warming up to 180-190 DEG C, 200-300 rev/min of dispersed with stirring 4-6 minute, add beta-glucan and be stirred to room-temperature ball-milling 1-2 hour, obtain modified furan resin;
(2) bluestone powder being scattered in the mass concentration be mixed with by Wool wax alcohol Soxylat A 25-7 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 to stir and ultrasonic disperse 30-40 minute, dropwise drip wild marjoram oil, 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): 53.5;
(2) sticking power (level): 1;
(3) resistance to neutral salt spray/h: be greater than 2000;
(4) strong basicity resisting (30%NaOH)/h:480.

Claims (2)

1. a resistant to elevated temperatures polyester powder coating, it is characterized in that, be made up of the raw material of following weight part: vibrin 64-68, furane resin 20-22, polyacrylic ester 12-14, nano titanium oxide 1.8-1.9, silicon boride micro mist 0.5-0.7, bluestone powder 18-20, wild marjoram oil 5-7, Wool wax alcohol Soxylat A 25-7 2.3-2.5, beta-glucan 3.1-3.3, coffee grounds 4-6, beta-hydroxy alkylamide 3.4-4.7, pigment 6-7.
2. the making method of a kind of resistant to elevated temperatures polyester powder coating according to claim 1, is characterized in that comprising the following steps:
(1) coffee grounds is calcined 30-40 minute at 450-500 DEG C, be cooled to 100-120 DEG C and add furane resin, silicon boride micro mist stirring and evenly mixing, be warming up to 180-190 DEG C, 200-300 rev/min of dispersed with stirring 4-6 minute, add beta-glucan and be stirred to room-temperature ball-milling 1-2 hour, obtain modified furan resin;
(2) bluestone powder being scattered in the mass concentration be mixed with by Wool wax alcohol Soxylat A 25-7 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 to stir and ultrasonic disperse 30-40 minute, dropwise drip wild marjoram oil, 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.
CN201510944003.5A 2015-12-17 2015-12-17 High-temperature-resistant polyester powder coating and preparation method thereof Pending CN105440907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510944003.5A CN105440907A (en) 2015-12-17 2015-12-17 High-temperature-resistant polyester powder coating and preparation method thereof

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Application Number Priority Date Filing Date Title
CN201510944003.5A CN105440907A (en) 2015-12-17 2015-12-17 High-temperature-resistant polyester powder coating and preparation method thereof

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10138135B1 (en) 2018-04-24 2018-11-27 King Saud University Synthesis of titanium dioxide nanoparticles using Origanum majorana herbal extracts

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102775886A (en) * 2012-08-22 2012-11-14 广东华江粉末科技有限公司 Thermal-insulation powder coating for aluminum profiles as well as preparation method and application thereof
CN103342958A (en) * 2013-06-05 2013-10-09 浙江华彩化工有限公司 High temperature resistant powder coating
CN103965752A (en) * 2014-05-06 2014-08-06 张家港江南粉末涂料有限公司 High-temperature-resistant powder coating with good gloss-retention performance and production method thereof
CN105038562A (en) * 2015-07-30 2015-11-11 安徽荣达阀门有限公司 Antifouling powder coating with high strength and good heat insulation property for valves, and preparation method for antifouling powder coating

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102775886A (en) * 2012-08-22 2012-11-14 广东华江粉末科技有限公司 Thermal-insulation powder coating for aluminum profiles as well as preparation method and application thereof
CN103342958A (en) * 2013-06-05 2013-10-09 浙江华彩化工有限公司 High temperature resistant powder coating
CN103965752A (en) * 2014-05-06 2014-08-06 张家港江南粉末涂料有限公司 High-temperature-resistant powder coating with good gloss-retention performance and production method thereof
CN105038562A (en) * 2015-07-30 2015-11-11 安徽荣达阀门有限公司 Antifouling powder coating with high strength and good heat insulation property for valves, and preparation method for antifouling powder coating

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王岚等: "户外粉末涂料用羟烷基酰胺研究进展", 《上海涂料》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10138135B1 (en) 2018-04-24 2018-11-27 King Saud University Synthesis of titanium dioxide nanoparticles using Origanum majorana herbal extracts

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Application publication date: 20160330

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