CN105949897A - Corrosion-resistant coating used for surface of exhaust equipment - Google Patents

Corrosion-resistant coating used for surface of exhaust equipment Download PDF

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Publication number
CN105949897A
CN105949897A CN201610180748.3A CN201610180748A CN105949897A CN 105949897 A CN105949897 A CN 105949897A CN 201610180748 A CN201610180748 A CN 201610180748A CN 105949897 A CN105949897 A CN 105949897A
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CN
China
Prior art keywords
coating
standby
powder
aluminium powder
exhaust equipment
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Pending
Application number
CN201610180748.3A
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Chinese (zh)
Inventor
丁德波
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Jiangsu Institute of Economic and Trade Technology
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Jiangsu Institute of Economic and Trade Technology
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Priority to CN201610180748.3A priority Critical patent/CN105949897A/en
Publication of CN105949897A publication Critical patent/CN105949897A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D133/00Coating 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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08Anti-corrosive paints
    • C09D5/10Anti-corrosive paints containing metal dust
    • C09D5/103Anti-corrosive paints containing metal dust containing Al
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/18Fireproof paints including high temperature resistant paints
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/65Additives macromolecular
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/014Additives containing two or more different additives of the same subgroup in C08K
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/02Flame or fire retardant/resistant
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer 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)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Abstract

The invention discloses a corrosion-resistant coating used for the surface of exhaust equipment. The coating is made from the following raw materials, by weight part, 100-110 of an acrylic resin, 5-7 of an amino resin, 10-13 of butyl acetate, 20-22 of coal ash, 6-8 of aluminium powder, 1.5-2 of calcium oxide, 0.2-0.4 of polydimethylsiloxane, 0.5-0.7 of polyacrylamide, 0.5-0.7 of quartz powder, 1-2 of white carbon black, 1-1.2 of ferric oxide, 1-2 of a polyvinyl acetate emulsion, 2-2.5 of an inorganic silica sol, 1-1.4 of polyvinyl alcohol, 12-14 of styrene, 1.2-1.4 of azodiisobutyronitrile, and a proper amount of absolute ethanol. The corrosion resistance of aluminium powder is utilized to improve the performance of the coating, and the coating has a low carbon content and has functions of flame retardance, high adhesive force, freezing-thawing resistance, aging resistance, good flexibility of a coating film and high hardness. The coating is a novel eco-friendly product, cannot be replaced by a product of the same kind in the prior art, and has bright prospects.

Description

A kind of corrosion resistant coating for exhaust equipment surface
Technical field
The present invention relates to technical field of coatings, particularly relate to a kind of corrosion resistant coating for exhaust equipment surface.
Background technology
The surface of shell of exhaust equipment can be brushed different pigment and guarantee that housing is without damage, the use longevity of extension device Life.Aluminum pigment is widely used in traditional solvent based coating and oil due to its special metallic luster and " changeable colors along with angle " effect Mo Zhong.It is big that it has excellent metallic effect demand, and flake aluminum has good reflection light and the energy of reflective thermal radiation Power, forms continuous print metal film in coating, can reflect visible ray, ultraviolet and infrared ray.Reflection to visible light full spectrum It is silvery white in color so that it is there is good decoration performance, ultrared reflection is made it have the heat-insulating property of reflective thermal radiation, and To the reflection of ultraviolet then can protective coating not by ultraviolet damage, extend the life-span of coating.Due to the performance of pure aluminum own Vivaciously, aluminium powder specific surface area is big, and the most surface treated aluminium powder is easy to reunite, and aluminium powder occurs chemistry anti-with other media Should easily lose original performance.Common aluminium powder pigment easily reacts with water, therefore can not directly use, with acid in water paint again Property or alkaline medium contact time be easily corroded, corrosion can make the glossiness of aluminium powder pigment decline, and color is gloomy, the hydrogen of release The biggest pressure is formed, consequently, it is possible to there is the danger of blast in container.Therefore to adapt to different application demands, improve aluminum The weatherability of powder, widens application, needs aluminium powder is carried out surface modification, makes powder body in preparation process and last handling process In be in high degree of dispersion state, be current aluminium powder pigment research important topic.
Having carried out the research of styrene polymerization cladding aluminium powder in " research of styrene polymerization cladding flake aluminum ", author adopts Being coated with aluminium powder under the system of dehydrated alcohol with refined styrene, result shows along with the increase of monomer consumption, slow Releasing efficiency to be gradually increased, conversion ratio, clad ratio, coating efficiency are had the biggest by the quality of the quality of monomer, consumption and aluminium powder Impact, the quality stability of product is the highest, and the corrosion resistant effect played in coating also needs to improve.The thing that flyash is good Reason, chemical characteristic make it have and well apply potential quality, add flyash and be not only able to strengthen the mobility of coating in coating, The pore structure of system can also be improved, improve the function of coating.The present invention utilizes aluminium powder and flyash to be mixed with high-alumina fly Coal ash microsphere, corrosion-resistant, impact strength, the erosion-wear-resisting performance that play in coating can play the biggest raising, but It is that to be directly added into the compatibility the highest, the combination property of material can be substantially reduced.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of corrosion-resistant for exhaust equipment surface Coating.
The present invention is achieved by the following technical solutions:
A kind of corrosion resistant coating for exhaust equipment surface, is made up of the raw material of following weight portion: acrylic resin 100-110, amino resins 5-7, butyl acetate 10-13, flyash 20-22, aluminium powder 6-8, calcium oxide 1.5-2, poly dimethyl silicon Oxygen alkane 0.2-0.4, poly-propionic acid amide. 0.5-0.7, silica flour 0.5-0.7, white carbon 1-2, iron sesquioxide 1-1.2, poly-acetic acid second Alkene ester emulsion 1-2, inorganic silicon colloidal sol 2-2.5, polyvinyl alcohol 1-1.4, styrene 12-14, azodiisobutyronitrile 1.2-1.4, nothing Water-ethanol is appropriate.
Described a kind of corrosion resistant coating for exhaust equipment surface, is made up of step in detail below:
(1) the flyash concentrated sulphuric acid of 3-5 times amount being soaked 8-10h, it is neutrality that taking-up is washed with deionized to filtrate, dries Standby;Again standby flyash, calcium oxide, iron sesquioxide mix homogeneously ball milling are become fine powder, add polyvinyl acetate breast Mixture adhesive aggregation is coated on aluminium powder surface by liquid together, dries, then is placed in sintering furnace under inert atmosphere in 500-550 DEG C Calcining 30-45min, spraying into quickly cooling in water after terminating, to make spherical powder standby;
(2) by inorganic silicon colloidal sol, the PVA mixed deionized water dissolving share 4-5 times amount, ball prepared by step (1) is added Shape powder mix homogeneously, heats while stirring to moisture evaporation, standby after natural cooling;
(3) in equipped with the flask of agitator add step (2) prepare product, dehydrated alcohol, styrene, in the protection of nitrogen Under, start agitator heat make bottle in temperature control, at 70 DEG C, to be slowly added dropwise initiator azo two at this temperature Isopropyl cyanide, then constant temperature keeps this temperature to continue reaction 3-3.5h, and reaction cools down after terminating, reactant mixture methanol extraction, Filtering, filter cake is placed in that to dry, pulverize 300-400 mesh sieve in 50 DEG C of vacuum drying ovens standby;
(4) in high-speed stirred dispersion machine, be sequentially added into acrylic resin, product prepared by amino resins, step (3) and acetic acid Butyl ester first stirs 8-12min with 500r/min, adds poly-propionic acid amide. and stirs 15-18min with 1300r/min, is eventually adding poly- Dimethyl siloxane and surplus materials thereof stir 10-15min with 500-800r/min, stand 4-6min after having stirred.
The invention have the advantage that the present invention utilizes calcium oxide, iron sesquioxide at high temperature to produce crystalline phase by flyash bag Overlaying on aluminium powder surface, quickly cooling makes spherical powder, improves the mobility of powder, deposition efficiency etc., has stopped aluminum surface and has occurred Chemical reaction, then use Ludox to carry out inorganic coating so that it is surface forms adsorption layer, then carries out styrene monomer with it for core Emulsion is coated with so that clad ratio is high, effective, improves spherical powder dispersibility, permeability in resin matrix, and also has Effect solving aluminium powder is easily generated the problem of cross-linkable adhesive between trace, unordered polymerization aluminium powder in matrix resin;Present invention profit Improve the performance of coating with the corrosion resistance characteristic of aluminium powder, and also have low-carbon (LC), fire-retardant, adhesive force strong, freeze-thawing resistant, aging resistance, The effects such as film is flexible, hardness is high, are current like product irreplaceable novel environment friendly products, and application prospect is good.
Detailed description of the invention
A kind of corrosion resistant coating for exhaust equipment surface, is made up of the raw material of following weight portion (kilogram): third Olefin(e) acid resin 100, amino resins 5, butyl acetate 10, flyash 20, aluminium powder 6, calcium oxide 1.5, polydimethylsiloxane 0.2, Poly-propionic acid amide. 0.5, silica flour 0.5, white carbon 1, iron sesquioxide 1, polyvinyl acetate emulsion 1, inorganic silicon colloidal sol 2, poly-second Enol 1, styrene 12, azodiisobutyronitrile 1.2, dehydrated alcohol are appropriate.
Described a kind of corrosion resistant coating for exhaust equipment surface, is made up of step in detail below:
(1) the flyash concentrated sulphuric acid of 3 times amount is soaked 8h, take out be washed with deionized to filtrate be neutrality, dry for standby; Again standby flyash, calcium oxide, iron sesquioxide mix homogeneously ball milling being become fine powder, adding polyvinyl acetate emulsion will be mixed Compound adhesive aggregation is coated on aluminium powder surface together, dries, then is placed in sintering furnace in lower 500 DEG C of inert atmosphere calcining 30min, Spraying into quickly cooling in water after end, to make spherical powder standby;
(2) by inorganic silicon colloidal sol, the PVA mixed deionized water dissolving share 4 times amount, add prepared by step (1) is spherical Powder mix homogeneously, heats while stirring to moisture evaporation, standby after natural cooling;
(3) in equipped with the flask of agitator add step (2) prepare product, dehydrated alcohol, styrene, in the protection of nitrogen Under, start agitator heat make bottle in temperature control, at 70 DEG C, to be slowly added dropwise initiator azo two at this temperature Isopropyl cyanide, then constant temperature keeps this temperature to continue reaction 3h, and reaction cools down after terminating, and reactant mixture methanol extraction filters, Filter cake is placed in that to dry, pulverize 300 mesh sieves in 50 DEG C of vacuum drying ovens standby;
(4) in high-speed stirred dispersion machine, be sequentially added into acrylic resin, product prepared by amino resins, step (3) and acetic acid Butyl ester first stirs 8min with 500r/min, adds poly-propionic acid amide. and stirs 15min with 1300r/min, is eventually adding poly dimethyl Siloxanes and surplus materials thereof stir 10min with 500r/min, stand 4min after having stirred.
This coating artificial ageing resistance 4800 hours, pliability > 1mm, resistance to impact > 60cm, resistance to 30% sulfuric acid solution > 180d, resistance to 30% sodium hydroxide solution > 180d, resistance to 3% sodium chloride solution > 180d, thermostability (heating 80h at 500 DEG C) is without becoming Change, fire resistance >=4 grade.

Claims (2)

1. the corrosion resistant coating for exhaust equipment surface, it is characterised in that be made up of the raw material of following weight portion: Acrylic resin 100-110, amino resins 5-7, butyl acetate 10-13, flyash 20-22, aluminium powder 6-8, calcium oxide 1.5-2, Polydimethylsiloxane 0.2-0.4, poly-propionic acid amide. 0.5-0.7, silica flour 0.5-0.7, white carbon 1-2, iron sesquioxide 1- 1.2, polyvinyl acetate emulsion 1-2, inorganic silicon colloidal sol 2-2.5, polyvinyl alcohol 1-1.4, styrene 12-14, azo two isobutyl Nitrile 1.2-1.4, dehydrated alcohol are appropriate.
A kind of corrosion resistant coating for exhaust equipment surface, it is characterised in that by detail below Step is made:
(1) the flyash concentrated sulphuric acid of 3-5 times amount being soaked 8-10h, it is neutrality that taking-up is washed with deionized to filtrate, dries Standby;Again standby flyash, calcium oxide, iron sesquioxide mix homogeneously ball milling are become fine powder, add polyvinyl acetate breast Mixture adhesive aggregation is coated on aluminium powder surface by liquid together, dries, then is placed in sintering furnace under inert atmosphere in 500-550 DEG C Calcining 30-45min, spraying into quickly cooling in water after terminating, to make spherical powder standby;
(2) by inorganic silicon colloidal sol, the PVA mixed deionized water dissolving share 4-5 times amount, ball prepared by step (1) is added Shape powder mix homogeneously, heats while stirring to moisture evaporation, standby after natural cooling;
(3) in equipped with the flask of agitator add step (2) prepare product, dehydrated alcohol, styrene, in the protection of nitrogen Under, start agitator heat make bottle in temperature control, at 70 DEG C, to be slowly added dropwise initiator azo two at this temperature Isopropyl cyanide, then constant temperature keeps this temperature to continue reaction 3-3.5h, and reaction cools down after terminating, reactant mixture methanol extraction, Filtering, filter cake is placed in that to dry, pulverize 300-400 mesh sieve in 50 DEG C of vacuum drying ovens standby;
(4) in high-speed stirred dispersion machine, be sequentially added into acrylic resin, product prepared by amino resins, step (3) and acetic acid Butyl ester first stirs 8-12min with 500r/min, adds poly-propionic acid amide. and stirs 15-18min with 1300r/min, is eventually adding poly- Dimethyl siloxane and surplus materials thereof stir 10-15min with 500-800r/min, stand 4-6min after having stirred.
CN201610180748.3A 2016-03-28 2016-03-28 Corrosion-resistant coating used for surface of exhaust equipment Pending CN105949897A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108285712A (en) * 2018-02-27 2018-07-17 合肥择浚电气设备有限公司 A kind of electrical equipment surface anticorrosive coating and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1152012A (en) * 1995-12-15 1997-06-18 中国人民解放军海军后勤技术装备研究所 Fire-retardant, electrostatic-conducting, heat-resisting and anticorrosive paint
CN102161853A (en) * 2011-05-31 2011-08-24 杭州立威化工涂料有限公司 Technical manufacturing process for low-temperature curing amino baking finish

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1152012A (en) * 1995-12-15 1997-06-18 中国人民解放军海军后勤技术装备研究所 Fire-retardant, electrostatic-conducting, heat-resisting and anticorrosive paint
CN102161853A (en) * 2011-05-31 2011-08-24 杭州立威化工涂料有限公司 Technical manufacturing process for low-temperature curing amino baking finish

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
陈子路: "苯乙烯聚合包覆片状铝粉的研究", 《中国优秀硕士学位论文全文数据库,工程科技第Ⅰ辑》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108285712A (en) * 2018-02-27 2018-07-17 合肥择浚电气设备有限公司 A kind of electrical equipment surface anticorrosive coating and preparation method thereof

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