CN105482651A - Impact-resistant corrosion-resistant powder paint for valves and preparation method thereof - Google Patents

Impact-resistant corrosion-resistant powder paint for valves and preparation method thereof Download PDF

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Publication number
CN105482651A
CN105482651A CN201510996099.XA CN201510996099A CN105482651A CN 105482651 A CN105482651 A CN 105482651A CN 201510996099 A CN201510996099 A CN 201510996099A CN 105482651 A CN105482651 A CN 105482651A
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China
Prior art keywords
parts
resin
raw material
powder coating
coalescence aid
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CN201510996099.XA
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Chinese (zh)
Inventor
吴寿涛
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Tongling Jingwei Fluid Technology Co Ltd
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Tongling Jingwei Fluid Technology Co Ltd
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Priority to CN201510996099.XA priority Critical patent/CN105482651A/en
Publication of CN105482651A publication Critical patent/CN105482651A/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
    • C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • C09D163/04—Epoxynovolacs
    • 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
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • 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
    • C09D7/65—Additives macromolecular
    • 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
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
    • 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
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Paints Or Removers (AREA)

Abstract

The invention discloses an impact-resistant corrosion-resistant powder paint for valves, which is prepared from the following raw materials in parts by weight: 20-30 parts of novolac epoxy resin, 15-25 parts of bisphenol A epoxy resin, 5-10 parts of ABS (acrylonitrile-butadiene-styrene) resin, 20-30 parts of barium sulfate, 3-5 parts of mullite fiber, 0.3-0.5 part of nano cerium oxide, 4-6 parts of aluminasol, 3-5 parts of water-based polyurethane emulsion, 3-5 parts of phenol curing agent, 0.5-1 part of disodium edetate, 0.5-1 part of castor oil polyethenoxy ether and 6-8 parts of film forming assistant. The powder paint for valves has excellent corrosion resistance and leveling property. The formed coating has the advantages of high combining capacity with the metal matrix, smooth surface, high flatness, low tendency to peeling and cracking, high flexibility, high impact resistance and high stability, and can perform favorable surface protection function.

Description

A kind of shock resistance anticorrosion valve powder coating and preparation method thereof
Technical field
The present invention relates to powder coating technology field, particularly relate to a kind of shock resistance anticorrosion valve powder coating and preparation method thereof.
Background technology
Valve is the indispensable fluid control devices parts of key areas such as water conservancy, fire-fighting, petrochemical complex, metallurgy, electric power, and it damages and change and mainly comes from main body corrosion.Long-term and the medium contact of valve cavity, be subject to the corrosion of medium and wash away, easily corrosion occurring, the valve latus rectum after corrosion diminishes, and flow resistance increases, and has a strong impact on the work-ing life of medium transmission and valve.For addressing this problem, adopting suitable coating to carry out application to valve is conventional method.Powder coating is a kind of coating of Novel solvent-free, have solvent-free, nuisanceless, environmental protection, the simple feature of coating process, and its coating performance is excellent, is applied widely.But the binding ability of powder coating and metallic matrix is poor, corrosion-resistant property is not enough, and when being applied to valve body application, there is coatingsurface defect to a certain extent, limit the application of powder coating in valve field of coating.In recent years, along with national economy development, domestic valve products is also to high quality, high life future development, and this has higher requirement to valve coating.Valve coating easily ftractures, comes off under HI high impact condition, for protecting valve better, needs powder coating to have good shock resistance.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, provides a kind of shock resistance anticorrosion valve powder coating and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of shock resistance anticorrosion valve powder coating, it is obtained by the raw material of following weight parts:
Novolac epoxy 20-30, bisphenol A type epoxy resin 15-25, ABS resin 5-10, barium sulfate 20-30, mullite fiber 3-5, nano ceric oxide 0.3-0.5, Alumina gel 4-6, aqueous polyurethane emulsion 3-5, phenols curing agent 3-5, disodium ethylene diamine tetraacetate 0.5-1, castor oil polyoxyethylene ether 0.5-1, film coalescence aid 6-8;
Wherein Alumina gel solid content is 20-30%, and aqueous polyurethane emulsion solid content is 40-50%;
Wherein film coalescence aid is made up of the raw material of following weight part: rosin 2-4, st-yrax 0.5-1, epoxy soybean oil 5-10, vinylformic acid 3-5, glyceryl monostearate 0.5-1, Silane coupling reagent KH-570 0.5-1; The preparation method of film coalescence aid is first that rosin, st-yrax, epoxy soybean oil and glyceryl monostearate is even in 160-180 DEG C of melt blending, then temperature is adjusted to 110-120 DEG C and adds all the other raw material stirring 2-4h, to obtain final product.
A preparation method for shock resistance anticorrosion valve powder coating, comprises the following steps:
(1) add in the water of 10-15 times of weight after nano ceric oxide being mixed with Alumina gel, pH is adjusted to 2.5-3.5 and adds barium sulfate and mullite fiber 50-60 DEG C of stirring 1-2h, again pH is adjusted to 6-7 and adds aqueous polyurethane emulsion 80-90 DEG C and stir 2-4h, then 120-150 DEG C of dry 4-6h, be ground to 400-600 order after cooling, obtain modified filler;
(2) by novolac epoxy, bisphenol A type epoxy resin, ABS resin, castor oil polyoxyethylene ether and film coalescence aid in 80-90 DEG C, 1000-1500r/min mixing 10-15min, obtain resin compound;
(3) by the resin compound in the modified filler in (1) and (2) prior to 800-1500r/min high-speed mixing 10-20min, add all the other raw material stirring more even, melt extruded by screw extrusion press, then cool section, pulverizing is ground to 400-600 order, obtain shock resistance anticorrosion valve powder coating.
Advantage of the present invention is:
The present invention is by the reaction of rosin, st-yrax, vinylformic acid and epoxy soybean oil melt blending, film coalescence aid is obtained in conjunction with Silane coupling reagent KH-570 modification, high with the consistency of resin and filler, strong with the bonding force of metallic matrix, effectively can improve the sticking power of coating, levelling property and mechanical property, urethane has snappiness, with the high-compatibility of epoxy resin, Alumina gel, nano rare earth cerium dioxide has high rigidity, high-corrosion resistance, pass through nano ceric oxide, Alumina gel and aqueous polyurethane emulsion carry out composite modified to filler, then carry out composite with resin and all the other raw materials, the valve powder coating obtained is made to have excellent corrosion resistance nature and levelling property, coating and the metallic matrix binding ability of formation are strong, smooth surface, planeness is high, incrust, cracking, snappiness and shock-resistance strong, stability is high, good surfacecti proteon effect can be played.
Embodiment
A kind of shock resistance anticorrosion valve powder coating, it is obtained by the raw material of following weight parts:
Novolac epoxy 20, bisphenol A type epoxy resin 15, ABS resin 5, barium sulfate 20, mullite fiber 3, nano ceric oxide 0.3, Alumina gel 4, aqueous polyurethane emulsion 3, phenols curing agent 3, disodium ethylene diamine tetraacetate 0.5, castor oil polyoxyethylene ether 0.5, film coalescence aid 6;
Wherein Alumina gel solid content is 20%, and aqueous polyurethane emulsion solid content is 40%;
Wherein film coalescence aid is made up of the raw material of following weight part: rosin 2, st-yrax 0.5, epoxy soybean oil 5, vinylformic acid 3, glyceryl monostearate 0.5, Silane coupling reagent KH-570 0.5; The preparation method of film coalescence aid is first that rosin, st-yrax, epoxy soybean oil and glyceryl monostearate is even in 160 DEG C of melt blendings, then temperature is adjusted to 110 DEG C and adds all the other raw material stirring 2h, to obtain final product.
A preparation method for shock resistance anticorrosion valve powder coating, comprises the following steps:
(1) add in the water of 10 times of weight after nano ceric oxide being mixed with Alumina gel, pH is adjusted to 2.5 and adds barium sulfate and mullite fiber 50 DEG C stirring 1h, again pH is adjusted to 6 and adds aqueous polyurethane emulsion 80 DEG C and stir 2h, then 120 DEG C of dry 4h, be ground to 400 orders after cooling, obtain modified filler;
(2) by novolac epoxy, bisphenol A type epoxy resin, ABS resin, castor oil polyoxyethylene ether and film coalescence aid in 80 DEG C, 1000r/min mixing 10min, obtain resin compound;
(3) by the resin compound in the modified filler in (1) and (2) prior to 800r/min high-speed mixing 10min, add all the other raw material stirring more even, melt extruded by screw extrusion press, then cool section, pulverizing is ground to 400 orders, obtain shock resistance anticorrosion valve powder coating.
Above-mentioned obtained valve powder coating technology index is as follows:
Hardness of film: 5H;
Sticking power: 0 grade;
Shock resistance: 50Kgcm passes through;
Salt spray resistance: 2500h is unchanged;
Salt water resistance performance (5%NaOH): 2500h is unchanged;
The defects such as coatingsurface free of pinholes, shrinkage cavity and tangerine peel, thickness is even.

Claims (2)

1. a shock resistance anticorrosion valve powder coating, is characterized in that, it is obtained by the raw material of following weight parts:
Novolac epoxy 20-30, bisphenol A type epoxy resin 15-25, ABS resin 5-10, barium sulfate 20-30, mullite fiber 3-5, nano ceric oxide 0.3-0.5, Alumina gel 4-6, aqueous polyurethane emulsion 3-5, phenols curing agent 3-5, disodium ethylene diamine tetraacetate 0.5-1, castor oil polyoxyethylene ether 0.5-1, film coalescence aid 6-8;
Described Alumina gel solid content is 20-30%, and aqueous polyurethane emulsion solid content is 40-50%;
Described film coalescence aid is made up of the raw material of following weight part: rosin 2-4, st-yrax 0.5-1, epoxy soybean oil 5-10, vinylformic acid 3-5, glyceryl monostearate 0.5-1, Silane coupling reagent KH-570 0.5-1; The preparation method of film coalescence aid is first that rosin, st-yrax, epoxy soybean oil and glyceryl monostearate is even in 160-180 DEG C of melt blending, then temperature is adjusted to 110-120 DEG C and adds all the other raw material stirring 2-4h, to obtain final product.
2. the preparation method of a kind of shock resistance anticorrosion valve powder coating according to claim 1, is characterized in that, comprise the following steps:
(1) add in the water of 10-15 times of weight after nano ceric oxide being mixed with Alumina gel, pH is adjusted to 2.5-3.5 and adds barium sulfate and mullite fiber 50-60 DEG C of stirring 1-2h, again pH is adjusted to 6-7 and adds aqueous polyurethane emulsion 80-90 DEG C and stir 2-4h, then 120-150 DEG C of dry 4-6h, be ground to 400-600 order after cooling, obtain modified filler;
(2) by novolac epoxy, bisphenol A type epoxy resin, ABS resin, castor oil polyoxyethylene ether and film coalescence aid in 80-90 DEG C, 1000-1500r/min mixing 10-15min, obtain resin compound;
(3) by the resin compound in the modified filler in (1) and (2) prior to 800-1500r/min high-speed mixing 10-20min, add all the other raw material stirring more even, melt extruded by screw extrusion press, then cool section, pulverizing is ground to 400-600 order, obtain shock resistance anticorrosion valve powder coating.
CN201510996099.XA 2015-12-23 2015-12-23 Impact-resistant corrosion-resistant powder paint for valves and preparation method thereof Pending CN105482651A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106756594A (en) * 2016-12-15 2017-05-31 苏州科胜仓储物流设备有限公司 A kind of shelf post high strength alloy steel and its manufacture method
CN107418368A (en) * 2017-06-06 2017-12-01 安徽腾龙泵阀制造有限公司 A kind of preparation technology of pump corrosion-resistant abrasion coating
WO2018009086A1 (en) * 2016-07-08 2018-01-11 Cin Industrial Coatings, S.A. Thermosetting powder paint with anti-sticker properties, corresponding production and use methods and corresponding coating
CN114181368A (en) * 2021-12-30 2022-03-15 佛山市贝特尔化工有限公司 Polyurethane dispersion for water-based glass paint and preparation method and application thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101353544A (en) * 2008-09-11 2009-01-28 浙江大学宁波理工学院 Tough sintering epoxy powder coating and preparation thereof
CN103937302A (en) * 2014-03-28 2014-07-23 珠海哥拜耳涂料有限公司 Inorganic mineral coating and manufacturing method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101353544A (en) * 2008-09-11 2009-01-28 浙江大学宁波理工学院 Tough sintering epoxy powder coating and preparation thereof
CN103937302A (en) * 2014-03-28 2014-07-23 珠海哥拜耳涂料有限公司 Inorganic mineral coating and manufacturing method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018009086A1 (en) * 2016-07-08 2018-01-11 Cin Industrial Coatings, S.A. Thermosetting powder paint with anti-sticker properties, corresponding production and use methods and corresponding coating
CN106756594A (en) * 2016-12-15 2017-05-31 苏州科胜仓储物流设备有限公司 A kind of shelf post high strength alloy steel and its manufacture method
CN107418368A (en) * 2017-06-06 2017-12-01 安徽腾龙泵阀制造有限公司 A kind of preparation technology of pump corrosion-resistant abrasion coating
CN107418368B (en) * 2017-06-06 2019-07-26 安徽腾龙泵阀制造有限公司 A kind of pump preparation process of corrosion-resistant abrasion coating
CN114181368A (en) * 2021-12-30 2022-03-15 佛山市贝特尔化工有限公司 Polyurethane dispersion for water-based glass paint and preparation method and application thereof
CN114181368B (en) * 2021-12-30 2023-05-16 佛山市贝特尔化工有限公司 Polyurethane dispersion for water-based glass paint and preparation method and application thereof

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Application publication date: 20160413

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