CN105885546A - Polyurethane-modified waterborne dacromet coating solution for automobile spring and preparation method of coating solution - Google Patents
Polyurethane-modified waterborne dacromet coating solution for automobile spring and preparation method of coating solution Download PDFInfo
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- CN105885546A CN105885546A CN201610420430.8A CN201610420430A CN105885546A CN 105885546 A CN105885546 A CN 105885546A CN 201610420430 A CN201610420430 A CN 201610420430A CN 105885546 A CN105885546 A CN 105885546A
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- polyurethane
- coating solution
- zinc powder
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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
- C09D101/00—Coating compositions based on cellulose, modified cellulose, or cellulose derivatives
- C09D101/08—Cellulose derivatives
- C09D101/26—Cellulose ethers
- C09D101/28—Alkyl ethers
- C09D101/284—Alkyl ethers with hydroxylated hydrocarbon radicals
-
- 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
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/103—Anti-corrosive paints containing metal dust containing Al
-
- 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
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/106—Anti-corrosive paints containing metal dust containing Zn
-
- 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)
- Application Of Or Painting With Fluid Materials (AREA)
- Vibration Prevention Devices (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a polyurethane-modified waterborne dacromet coating solution for an automobile spring. The coating solution is prepared from, by weight, 20-30 parts of aluminum-zinc powder, 1-2 parts of microcrystalline cellulose, 0.1-0.2 part of ethylene glycol diglycidyl ether, 3-5 parts of hydroxyethyl cellulose, 0.1-0.2 part of alkenyl succinic anhydride, 2-4 parts of Bayer 54 waterborne polyurethane emulsion, 0.3-0.5 part of butyl titanate, 0.3-0.5 part of a titanate coupling agent TMC-201, 6-8 parts of absolute ethyl alcohol, 1-2 part of hydrogen peroxide, 0.5-1 part of citric acid, 0.3-0.5 part of polyoxyethylene lauryl ether and 40-60 parts of water. The dacromet coating solution can form a coating which is high in strength, good in abrasion resistance and excellent in corrosion resistance on the surface of a substrate, a good protection effect is achieved, and in addition, the coating solution is high in adhesion, good in stability, high in flexibility and good in impact resistance and has high practical value.
Description
Technical field
The present invention relates to Metal surface anti-corrosion paint field, particularly relate to a kind of motor spring polyurethane-modified aqueous Dacroment masking liquid and preparation method thereof.
Background technology
Dacromet Technology is a kind of novel process for treating surface, by workpiece being directly immersed in the treatment fluid that zincilate, aluminium powder and chromic anhydride are primary raw material, or brush, spraying make treatment fluid adhere to surface of the work, then sintering is formed containing zinc, aluminium, the inorganic conversion film of chromium, thus protects surface of the work.Compared with traditional electroplating technology, Dacromet/steel has superpower corrosion resisting property and stability, and environment does not produce in process pollution.Owing to auto-parts have higher requirement for stability, solar heat protection, protection against the tide and anti-corrosion performance etc., Dacromet Technology have also been obtained in automobile industry and is widely applied.
But, Dacromet/steel is not completely " green coating ", can remaining minimal amount of Cr in Dacromet/steel6+, people and animals and plants are had the biggest toxic action, and ecological environment are caused certain pollution.And the corrosion resistance of the formed coating of chromium-free Dyclo masking liquid is substantially reduced, it is difficult to reach use demand.And, the mechanical performance of Dacromet/steel is poor, and low with the adhesion of base material, storage stability is the highest, which also limits its range of application.Therefore, exploitation can be formed at matrix surface has good mechanical properties and the chromium-free Dyclo masking liquid of corrosion proof firm coating, has the highest practical value and market potential.
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 motor spring polyurethane-modified aqueous Dacroment masking liquid and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of motor spring is with polyurethane-modified aqueous Dacroment masking liquid, and it is to be prepared by the raw material of following weight parts:
Aluminium zinc powder 20-30, microcrystalline cellulose 1-2, ethylene glycol diglycidylether 0.1-0.2, hydroxyethyl cellulose 3-5, octenyl succinic acid anhydride 0.1-0.2, Bayer U54 aqueous polyurethane emulsion 2-4, butyl titanate 0.3-0.5, titanate coupling agent TMC-201 0.3-0.5, absolute ethyl alcohol 6-8, hydrogen peroxide 1-2, citric acid 0.5-1, ethoxylated dodecyl alcohol 0.3-0.5, water 40-60；
Wherein aluminium zinc powder is made up of aluminium powder and zinc powder mixing, and wherein aluminium powder is 1:5-1:2 with the weight ratio of zinc powder.
A kind of motor spring preparation method of polyurethane-modified aqueous Dacroment masking liquid, comprises the following steps:
(1) weigh raw material by weight, after first being mixed with microcrystalline cellulose, ethylene glycol diglycidylether by aluminium zinc powder, grind uniform modified aluminium zinc powder, add in the water of 1/3-1/2 amount and stir 0.5-1h in 60-80 DEG C, after cooling composite mortar；
(2) first octenyl succinic acid anhydride is mixed with absolute ethyl alcohol, add butyl titanate and titanate coupling agent TMC-201 stirs, be subsequently adding hydroxyethyl cellulose stirring 1-2h, obtain A liquid；Ethoxylated dodecyl alcohol is added in the water of surplus and be uniformly mixed, then pH is adjusted to 8-9, obtain B liquid；A liquid is slowly added dropwise in B liquid and stirs 3-5h, during keep pH between 8-9, temperature is 45-50 DEG C, after cooling, pH is adjusted to neutrality, obtains modified hydroxyethylcellulosadsorbing solution；
(3) it is sufficiently stirred for 0.5-1h after being mixed with remaining raw material by the modified hydroxyethylcellulosadsorbing solution in the composite mortar in (1), (2), obtains the polyurethane-modified aqueous Dacroment masking liquid of motor spring.
The invention have the advantage that
The present invention utilizes octenyl succinic acid anhydride, butyl titanate and titanate coupling agent that hydroxyethyl cellulose carries out compound graft modification, and compounding with the raw material such as microcrystalline cellulose, aqueous polyurethane emulsion obtain aqueous Dacroment masking liquid, after Overheating Treatment, play the collaborative coating function to aluminium zinc powder, and it is combined into organic network structure by crosslinked action, thus it is cross-linked to form, at substrate surface, the composite network structure coating that mechanical strength is high, adhesion is good, fine and close, the porosity of coating is low, surfacing, composition uniformly, have the protective action of excellence to base material.The Dacroment masking liquid that the present invention obtains can not only form at matrix surface that intensity is high, anti-wear performance is good, the coating of excellent anti-corrosion performance, play good protective action, and adhesive force is high, good stability, pliability high impact resistance is good, has higher practical value.
Detailed description of the invention
A kind of motor spring is with polyurethane-modified aqueous Dacroment masking liquid, and it is to be prepared by the raw material of following weight parts:
Aluminium zinc powder 20, microcrystalline cellulose 1, ethylene glycol diglycidylether 0.1, hydroxyethyl cellulose 3, octenyl succinic acid anhydride 0.1, Bayer U54 aqueous polyurethane emulsion 2, butyl titanate 0.3, titanate coupling agent TMC-201 0.3, absolute ethyl alcohol 6, hydrogen peroxide 1, citric acid 0.5, ethoxylated dodecyl alcohol 0.3, water 40；
Wherein aluminium zinc powder is made up of aluminium powder and zinc powder mixing, and wherein aluminium powder is 1:5 with the weight ratio of zinc powder.
A kind of motor spring preparation method of polyurethane-modified aqueous Dacroment masking liquid, comprises the following steps:
(1) weigh raw material by weight, after first being mixed with microcrystalline cellulose, ethylene glycol diglycidylether by aluminium zinc powder, grind uniform modified aluminium zinc powder, add in the water of 1/3 amount and stir 0.5h in 60 DEG C, after cooling composite mortar；
(2) first octenyl succinic acid anhydride is mixed with absolute ethyl alcohol, add butyl titanate and titanate coupling agent TMC-201 stirs, be subsequently adding hydroxyethyl cellulose stirring 1h, obtain A liquid；Ethoxylated dodecyl alcohol is added in the water of surplus and be uniformly mixed, then pH is adjusted to 8-9, obtain B liquid；A liquid is slowly added dropwise in B liquid and stirs 3h, during keep pH between 8-9, temperature is 45 DEG C, after cooling, pH is adjusted to neutrality, obtains modified hydroxyethylcellulosadsorbing solution；
(3) it is sufficiently stirred for 0.5h after being mixed with remaining raw material by the modified hydroxyethylcellulosadsorbing solution in the composite mortar in (1), (2), obtains the polyurethane-modified aqueous Dacroment masking liquid of motor spring.
The coating formed after above-mentioned prepared Dacroment masking liquid coating is carried out performance test, and result is as follows:
Hardness: 5H；
Salt spray resistance: >=1500h；
300 DEG C of humidity resistance life-span: >=240h；
Stability: can stably preserve more than three months under normal temperature.
Claims (2)
1. a motor spring is with polyurethane-modified aqueous Dacroment masking liquid, it is characterised in that it is to be prepared by the raw material of following weight parts:
Aluminium zinc powder 20-30, microcrystalline cellulose 1-2, ethylene glycol diglycidylether 0.1-0.2, hydroxyethyl cellulose 3-5, octenyl succinic acid anhydride 0.1-0.2, Bayer U54 aqueous polyurethane emulsion 2-4, butyl titanate 0.3-0.5, titanate coupling agent TMC-201 0.3-0.5, absolute ethyl alcohol 6-8, hydrogen peroxide 1-2, citric acid 0.5-1, ethoxylated dodecyl alcohol 0.3-0.5, water 40-60；
Described aluminium zinc powder is mixed by aluminium powder and zinc powder and forms, and wherein aluminium powder is 1:5-1:2 with the weight ratio of zinc powder.
A kind of motor spring the most according to claim 1 preparation method of polyurethane-modified aqueous Dacroment masking liquid, it is characterised in that comprise the following steps:
(1) weigh raw material by weight, after first being mixed with microcrystalline cellulose, ethylene glycol diglycidylether by aluminium zinc powder, grind uniform modified aluminium zinc powder, add in the water of 1/3-1/2 amount and stir 0.5-1h in 60-80 DEG C, after cooling composite mortar；
(2) first octenyl succinic acid anhydride is mixed with absolute ethyl alcohol, add butyl titanate and titanate coupling agent TMC-201 stirs, be subsequently adding hydroxyethyl cellulose stirring 1-2h, obtain A liquid；Ethoxylated dodecyl alcohol is added in the water of surplus and be uniformly mixed, then pH is adjusted to 8-9, obtain B liquid；A liquid is slowly added dropwise in B liquid and stirs 3-5h, during keep pH between 8-9, temperature is 45-50 DEG C, after cooling, pH is adjusted to neutrality, obtains modified hydroxyethylcellulosadsorbing solution；
(3) it is sufficiently stirred for 0.5-1h after being mixed with remaining raw material by the modified hydroxyethylcellulosadsorbing solution in the composite mortar in (1), (2), obtains the polyurethane-modified aqueous Dacroment masking liquid of motor spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610420430.8A CN105885546A (en) | 2016-06-13 | 2016-06-13 | Polyurethane-modified waterborne dacromet coating solution for automobile spring and preparation method of coating solution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610420430.8A CN105885546A (en) | 2016-06-13 | 2016-06-13 | Polyurethane-modified waterborne dacromet coating solution for automobile spring and preparation method of coating solution |
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| CN105885546A true CN105885546A (en) | 2016-08-24 |
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| CN201610420430.8A Pending CN105885546A (en) | 2016-06-13 | 2016-06-13 | Polyurethane-modified waterborne dacromet coating solution for automobile spring and preparation method of coating solution |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106256860A (en) * | 2016-08-25 | 2016-12-28 | 阜南县永兴工艺品有限公司 | A kind of titania nanotube is combined rattan handicraft aqueous polyurethane corrosion resistant coating and preparation method thereof |
| CN106318180A (en) * | 2016-08-25 | 2017-01-11 | 阜南县永兴工艺品有限公司 | Dirt-resistant cane handicraft waterborne polyurethane anti-corrosion paint and preparing method thereof |
| CN106336791A (en) * | 2016-08-25 | 2017-01-18 | 阜南县永兴工艺品有限公司 | Halloysite nano-tube composite rattan handicraft product aqueous polyurethane anticorrosive paint and preparation method thereof |
| CN106519920A (en) * | 2016-10-26 | 2017-03-22 | 中国人民解放军空军勤务学院 | Metal water-soluble anticorrosive coating |
| CN108102542A (en) * | 2018-01-19 | 2018-06-01 | 江苏科技大学 | One kind contains modified siloxane resin Dyclo paint and preparation method thereof |
| EP3450509A1 (en) * | 2017-08-29 | 2019-03-06 | Kirchmayer, Johann | Composition intended to be applied to a surface for forming a salt and brine solid coating, method for producing such a composition, their use, method for coating an object and resinous coating |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102277022A (en) * | 2011-08-17 | 2011-12-14 | 南京工业大学 | Water-based chrome-free Dacromet coating solution and preparation method thereof |
-
2016
- 2016-06-13 CN CN201610420430.8A patent/CN105885546A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102277022A (en) * | 2011-08-17 | 2011-12-14 | 南京工业大学 | Water-based chrome-free Dacromet coating solution and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106256860A (en) * | 2016-08-25 | 2016-12-28 | 阜南县永兴工艺品有限公司 | A kind of titania nanotube is combined rattan handicraft aqueous polyurethane corrosion resistant coating and preparation method thereof |
| CN106318180A (en) * | 2016-08-25 | 2017-01-11 | 阜南县永兴工艺品有限公司 | Dirt-resistant cane handicraft waterborne polyurethane anti-corrosion paint and preparing method thereof |
| CN106336791A (en) * | 2016-08-25 | 2017-01-18 | 阜南县永兴工艺品有限公司 | Halloysite nano-tube composite rattan handicraft product aqueous polyurethane anticorrosive paint and preparation method thereof |
| CN106519920A (en) * | 2016-10-26 | 2017-03-22 | 中国人民解放军空军勤务学院 | Metal water-soluble anticorrosive coating |
| EP3450509A1 (en) * | 2017-08-29 | 2019-03-06 | Kirchmayer, Johann | Composition intended to be applied to a surface for forming a salt and brine solid coating, method for producing such a composition, their use, method for coating an object and resinous coating |
| CN108102542A (en) * | 2018-01-19 | 2018-06-01 | 江苏科技大学 | One kind contains modified siloxane resin Dyclo paint and preparation method thereof |
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Application publication date: 20160824 |