CN105860829B - A kind of formula and preparation method of superhard anticorrosion coating material used for magnesium alloy - Google Patents

A kind of formula and preparation method of superhard anticorrosion coating material used for magnesium alloy Download PDF

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CN105860829B
CN105860829B CN201610185240.2A CN201610185240A CN105860829B CN 105860829 B CN105860829 B CN 105860829B CN 201610185240 A CN201610185240 A CN 201610185240A CN 105860829 B CN105860829 B CN 105860829B
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parts
coating material
magnesium alloy
superhard
material used
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CN105860829A (en
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许涛
杨萍
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Dongguan Aibao Nanotechnology Co Ltd
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Dongguan Aibao Nanotechnology Co Ltd
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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
    • C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C09D183/04—Polysiloxanes
    • 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
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • 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
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C08G77/06—Preparatory processes
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Paints Or Removers (AREA)

Abstract

A kind of formula and preparation method of superhard anticorrosion coating material used for magnesium alloy；It is mixed using following by the raw material of portion rate: 10-15 parts of PH regulator；100-200 parts of Nano silica sol；300-400 parts of butyl acetate；50-80 parts of aluminium dihydrogen phosphate；100-150 parts of deionized water；100-120 parts of phenyltrimethoxysila,e；100-200 parts of first trimethoxy silane；75-100 parts of polyester modified organic silicon resin；Inorganic grams lampblack pigment 75-100 parts；30-80 parts of Carbon Dioxide calcium；It is Amino resin 30-60 parts high；When using coating material of the present invention, the mode of spraying can be used, material spraying on the surface of magnesium alloy materials and is heating and curing；Coating material provided by the invention is sprayed on good technique effect of the Mg alloy surface with high rigidity (9H or more), wear-resisting, anti-corrosion and salt spray resistance (200 hours or more).

Description

A kind of formula and preparation method of superhard anticorrosion coating material used for magnesium alloy
Technical field
The present invention relates to magnesium alloy surface treatments.A kind of formula more particularly to superhard coating material used for magnesium alloy and Preparation method.
Background technique
In the prior art, magnesium alloy has light weight, specific strength height, hardness high, good electromagnetic shielding performance, cutting The features such as processing performance and hot formability energy, good heating conduction, good biocompatibility is to develop high-tech of new generation The desired matrix of material, therefore, magnesium alloy have weight in fields such as automobile, electronics, aerospace, defence and military, bio-medicals The application value and wide application prospect wanted, referred to as 21st century " green engineering material ".With the production and processing skill of magnesium The development of art and constantly improve, magnesium alloy materials oneself through becoming the third-largest structural metallic engineering material after steel, aluminium alloy Material, obtains swift and violent development in worldwide.Currently, for the surface treatment method master for improving corrosion resistance of magnesium alloy energy Have: chemical conversion embrane method (including chromate, stannate.Phosphate etc.), anodizing, galvanoplastic, organic coating method Deng.Hexavalent chromium has severe toxicity in chromate conversion coating, causes environmental pollution；Stannate, phosphate conversion film sample pre-treatment Process is complicated, has pollution to water and soil；Anodic oxidation equipment requirement is high, and energy consumption is big；Galvanoplastic are toxic, and handle difficulty, on Method is stated since there are problems, for example the bad control of technological parameter, coating are uneven etc. in preparation process, cause coating with There are multiple interfaces between coating, and there are a large amount of defects, and the permeability of erosion is very high, reduces the anticorrosion of protective coating Effect.In conclusion the problems such as generally existing coating effect of existing method is poor, complex process, high process costs.
Summary of the invention
In order to solve above-mentioned problems of the prior art, the invention proposes a kind of preparations of Mg alloy surface gel method Self demixing composite coating, which eliminates interface between layers, improves the anticorrosive property of coating.
A kind of preparation method of superhard anticorrosion coating material used for magnesium alloy is provided；It is mixed using the following raw material by portion rate Conjunction is made: 10-15 parts of PH regulator；100-200 parts of Nano silica sol；300-400 parts of butyl acetate；Aluminium dihydrogen phosphate 50-80 Part；100-150 parts of deionized water；100-120 parts of phenyltrimethoxysila,e；100-200 parts of first trimethoxy silane；Polyester changes 75-100 parts of organic siliconresin of property；Inorganic grams lampblack pigment 75-100 parts；30-80 parts of Carbon Dioxide calcium；High Amino resin 30-60 parts；
A1, resin is made first: Nano silica sol being added to the water and is uniformly dispersed；PH regulator is added to be uniformly dispersed； Aluminium dihydrogen phosphate is added to be uniformly dispersed；Scattered above-mentioned material will be mixed to heat up 50-55 DEG C；Constant temperature is kept, is slowly stirred Phenyltrimethoxysila,e and first trimethoxy silane is added slowly together while being slowly stirred in above-mentioned mixed material Stirring, the time being slowly stirred are 5-7 hours；Then stop stirring；Stand 10-15 hours；It is equal to add butyl acetate stirring It is even；Carbon Dioxide calcium is added to stir evenly；
After completing above-mentioned steps, mixed material moisture is removed with separatory funnel, then filtered with filter paper, obtain resin Material；
A2,200 parts of resin material obtained in A1 step, 100 parts of butyl acetate, polyester modified organic silicon resin 75 are taken Part, grinder is ground to obtain superhard coating used together for 75 parts of inorganic grams lampblack pigment, 50 parts of high Amino resin Material.
In the preparation method of above-mentioned superhard coating material used for magnesium alloy；The PH regulator is 15 parts；Nano silica sol It is 150 parts；350 parts of butyl acetate；70 parts of aluminium dihydrogen phosphate；120 parts of deionized water；110 parts of phenyltrimethoxysila,e；First three 150 parts of methoxy silane.
In the preparation method of above-mentioned superhard coating material used for magnesium alloy；The time being slowly stirred is 5 hours；It stands Time is 12 hours.
Aluminium dihydrogen phosphate can solidify at normal temperature, and liquid and Solid-state Chemistry binding force are strong, have high temperature resistant, antidetonation, anti-stripping It falls, high temperature resistant airflow scouring, the features such as infrared ray absorption ability is strong and insulation performance is good.When using coating material of the present invention, The mode that spraying can be used on the surface of magnesium alloy materials and solidifies material spraying；The thickness of spraying can be micro- in 20-30 It is selected in the range of rice；It is sprayed on Mg alloy surface using coating material provided by the invention, hardness has high rigidity (9H More than), the technical effect of wear-resisting, anti-corrosion and salt spray resistance (200 hours or more).
Specific embodiment
The formula and preparation method of a kind of superhard coating material used for magnesium alloy are provided；Using the following raw material by portion rate It is mixed: 10-15 parts of PH regulator；100-200 parts of Nano silica sol；300-400 parts of butyl acetate；Aluminium dihydrogen phosphate 50- 80 parts；100-150 parts of deionized water；100-120 parts of phenyltrimethoxysila,e；100-200 parts of first trimethoxy silane；Polyester 75-100 parts of modified organic silicone resin；Inorganic grams lampblack pigment 75-100 parts；30-80 parts of Carbon Dioxide calcium；High methyl-etherified amino tree 30-60 parts of rouge；
A1, resin is made first: Nano silica sol being added to the water and is uniformly dispersed；PH regulator is added to be uniformly dispersed； Aluminium dihydrogen phosphate is added to be uniformly dispersed；Scattered above-mentioned material will be mixed to heat up 50-55 DEG C；Constant temperature is kept, is slowly stirred Phenyltrimethoxysila,e and first trimethoxy silane is added slowly together while being slowly stirred in above-mentioned mixed material Stirring, the time being slowly stirred are 5-7 hours；Then stop stirring；Stand 10-15 hours；It is equal to add butyl acetate stirring It is even；Carbon Dioxide calcium is added to stir evenly；
After completing above-mentioned steps, then with separatory funnel mixed material moisture is removed, then filtered with filter paper, is set Rouge material；
A2,200 parts of resin material obtained in A1 step, 100 parts of butyl acetate, polyester modified organic silicon resin 75 are taken Part, 75 parts of inorganic grams lampblack pigment, 50 parts of high Amino resin mix and ground to obtain superhard painting with grinder Layer material.
In the preparation method of above-mentioned superhard coating material used for magnesium alloy；The PH regulator is 15 parts；Nano silica sol It is 150 parts；350 parts of butyl acetate；70 parts of aluminium dihydrogen phosphate；120 parts of deionized water；110 parts of phenyltrimethoxysila,e；First three 150 parts of methoxy silane.
In the preparation method of above-mentioned superhard coating material used for magnesium alloy；The time being slowly stirred is 5 hours；It stands Time is 12 hours.
When using this coating, superhard coating material is formed in Mg alloy surface by the way of spraying, it then will spraying Good magnesium alloy component, is placed under 220 DEG C or so of environment temperature and is toasted, and the time is to obtain superhard painting in 30 minutes or so Layer.

Claims (3)

1. a kind of superhard anticorrosion coating material used for magnesium alloy；It is characterized by: formula is mixed using the following raw material by portion rate Conjunction is made: 10-15 parts of PH regulator；100-200 parts of Nano silica sol；300-400 parts of butyl acetate；Aluminium dihydrogen phosphate 50-80 Part；100-150 parts of deionized water；100-120 parts of phenyltrimethoxysila,e；100-200 parts of trimethoxy silane；Polyester modification 75-100 parts of organic siliconresin；Inorganic grams lampblack pigment 75-100 parts；30-80 parts of Carbon Dioxide calcium；High Amino resin 30- 60 parts；
The preparation method is as follows:
A1, resin is made first: Nano silica sol being added in deionized water and is uniformly dispersed；It is equal to add the dispersion of PH regulator It is even；Aluminium dihydrogen phosphate is added to be uniformly dispersed；Scattered above-mentioned material will be mixed to heat up 50-55 DEG C；Constant temperature is kept, is slowly stirred Above-mentioned mixed material is mixed, phenyltrimethoxysila,e and trimethoxy silane is added slowly together while being slowly stirred Stirring, the time being slowly stirred are 5-7 hours；Then stop stirring；Stand 10-15 hours；It is equal to add butyl acetate stirring It is even；Carbon Dioxide calcium is added to stir evenly；
After completing above-mentioned steps, mixed material moisture is removed with separatory funnel, then filtered with filter paper, obtain resinous wood Material；
A2,200 parts of resin material obtained in A1 step, 100 parts of butyl acetate, 75 parts of polyester modified organic silicon resin, nothing are taken Grinder is ground to obtain superhard coating material used together for 75 parts of machine grams lampblack pigment, 50 parts of high Amino resin.
2. superhard anticorrosion coating material used for magnesium alloy according to claim 1；It is characterized by: the PH regulator is 15 Part；Nano silica sol is 150 parts；350 parts of butyl acetate；70 parts of aluminium dihydrogen phosphate；120 parts of deionized water；Phenyl trimethoxy 110 parts of silane；150 parts of trimethoxy silane.
3. superhard anticorrosion coating material used for magnesium alloy according to claim 2；It is characterized by: it is described be slowly stirred when Between be 5 hours；Time of repose is 12 hours.
CN201610185240.2A 2016-03-29 2016-03-29 A kind of formula and preparation method of superhard anticorrosion coating material used for magnesium alloy Active CN105860829B (en)

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CN101240068B (en) * 2008-01-15 2011-04-27 大连交通大学 Modified silicasol and application thereof in preparing water paint
CN102070966B (en) * 2011-01-14 2013-07-10 东南大学 Organic and inorganic mixed fingerprint-resistance coating and preparation method thereof
CN102925053B (en) * 2012-10-12 2014-11-19 上海宜瓷龙新材料科技有限公司 Organic-inorganic composite paint, and preparation method and application thereof
CN103254762B (en) * 2013-01-30 2015-07-01 中国科学院宁波材料技术与工程研究所 Preparation method of organosilicon sol-gel coating for magnesium alloy substrate surface corrosion resistance

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