CN104946079A - Nano-montmorillonite-modified epoxy resin type powder coating and preparation method thereof - Google Patents
Nano-montmorillonite-modified epoxy resin type powder coating and preparation method thereof Download PDFInfo
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- CN104946079A CN104946079A CN201510329602.6A CN201510329602A CN104946079A CN 104946079 A CN104946079 A CN 104946079A CN 201510329602 A CN201510329602 A CN 201510329602A CN 104946079 A CN104946079 A CN 104946079A
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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
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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
- 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
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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
- 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
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- 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
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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)
- Paints Or Removers (AREA)
Abstract
The invention discloses a nano-montmorillonite-modified epoxy resin type powder coating and a preparation method thereof, and relates to the technical field of production of powder coatings. The powder coating is prepared from the following raw materials in parts by mass: 100-110 parts of epoxy resin, 15-20 parts of nano-montmorillonite, 20-25 parts of quaternary ammonium salt solution with the concentration of 5%, 10-12 parts of ceramic powder, 8-10 parts of ethylene glycol bis trimellitic anhydride ester, 5-8 parts of white carbon black, 3-5 parts of superfine transparent iron oxide yellow, 3-5 parts of polyether-modified organic siloxane, 2-3 parts of dibutyl phthalate, 1-2 parts of sodium metaborate, 30-35 parts of xylene and 40-45 parts of ethyl alcohol. The coating prepared from the preparation method is nontoxic and free of solvents and volatile and toxic substances, and meets environmental requirements; the raw material utilization ratio is high, and over-sprayed powder can be recycled; a compact coating layer is generated after spraying, and the coating layer is good in adhesive force and impact resistance, and excellent in weather resistance and corrosion resistance.
Description
Technical field:
The present invention relates to powder coating production technical field, be specifically related to a kind of nano montmorillonite modified Epoxy-resin-type powder paint 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, be mainly divided into thermoplastic powder coating and the large class of thermosetting powder coating(s) two.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.Temperature again this coating high also can not be softening as thermoplastic coating, and can only decompose.The resin adopted due to thermosetting powder coating(s) is the prepolymer that the polymerization degree is lower, molecular weight is lower, so the levelling property of coating is better, have ornamental preferably, and low-molecular-weight prepolymer is after solidification, 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.Wherein, Epoxy-resin-type powder paint is excellent in metlbond power, non-corrosibility, hardness, snappiness and shock strength owing to having, and therefore becomes the kind first applied in thermosetting powder coating(s).
Due to the existence of aromatic oxide group in epoxy coating, to ultraviolet and allergy thereof, so that weathering resistance is not high, and in baking or solar radiation process, easily yellowing, efflorescence, affect glossiness, ornamental extreme difference.In addition, due to its special construction, general set time is longer, reaches 15-20 minute, although partial coating can solidify under the condition of 160 DEG C, 15 minutes, decorative effect is poor, the technical requirements do not reach protection, hiding.
Summary of the invention:
Technical problem to be solved by this invention is to provide nano montmorillonite modified Epoxy-resin-type powder paint that a kind of raw material is easy to get, input cost is low and preparation method thereof.
Technical problem to be solved by this invention adopts following technical scheme to realize:
A kind of nano montmorillonite modified Epoxy-resin-type powder paint, be made up of the raw material of following mass fraction:
Epoxy resin 100-110 part, nano imvite 15-20 part, 5% quaternary ammonium salt solution 20-25 part, ceramics powder 10-12 part, ethylene glycol bis trimellitic anhydride ester 8-10 part, white carbon black 5-8 part, ultra-fine transparent yellow iron oxide 3-5 part, organic silicon modified by polyether oxygen alkane 3-5 part, dibutyl phthalate 2-3 part, sodium metaborate 1-2 part, dimethylbenzene 30-35 part, ethanol 40-45 part.
The preparation method of described ultra-fine transparent yellow iron oxide first gets liquor ferri trichloridi and sodium hydroxide solution to react the obtained ironic hydroxide water-sol at 60-65 DEG C, then add sodium laurylsulfonate and carry out surface treatment, chloroform extraction is used after being cooled to room temperature, get subnatant in 150-155 DEG C of oven dry, finally grind and get final product.
A preparation method for nano montmorillonite modified Epoxy-resin-type powder paint, comprises the following steps:
(1) nano imvite is scattered in 5% quaternary ammonium salt solution, be warming up to 50-60 DEG C of reaction 0.5-1h, then epoxy resin, dimethylbenzene and ethanol is added after being cooled to room temperature, mixture is supersound process 10-15min under ultrasonic frequency 22kHz, power 100-200W first, then microwave treatment 5-10min under microwave frequency 2450MHz, power 300-400W, obtains material I;
(2) ceramics powder, white carbon black and ultra-fine transparent yellow iron oxide are joined in ball mill, after ball milling 10-15min, add material I again, be milled to granularity and be less than 20 μm, then in 70-80 DEG C of oven dry, obtain material II;
(3) material II, ethylene glycol bis trimellitic anhydride ester, organic silicon modified by polyether oxygen alkane, dibutyl phthalate and sodium metaborate are joined in high-speed mixer, be warming up to 90-100 DEG C, after insulation 20-30min, material is added in screw extrusion press and melt extrude, the material extruded is slit into sheet through cooling press truncation, be ground into through pulverizing mill the powder that particle diameter is 20-35 μm again, finally carry out metering packing.
The invention has the beneficial effects as follows:
(1) this coating is not containing toxicity, not containing solvent and the toxic material of volatilization, meets environmental requirement;
(2) raw material availability is high, and cross the powder recoverable of spray, utilization ratio reaches as high as 99%;
(3) disposable spray finishing, can obtain the film of adequate thickness without the need to primary coat, production efficiency is high;
(4) form the coating of one deck densification after spraying, sticking power, good impact resistance, and there is excellent weathering resistance, erosion resistance;
(5) adopt bag type package, storage, transportation safety are conveniently.
Embodiment:
The technique means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment, setting forth the present invention further.
Embodiment 1
A kind of nano montmorillonite modified Epoxy-resin-type powder paint, be made up of the raw material of following mass fraction:
Epoxy resin 100 parts, nano imvite 15 parts, 5% quaternary ammonium salt solution 20 parts, ceramics powder 10 parts, ethylene glycol bis trimellitic anhydride ester 8 parts, white carbon black 5 parts, ultra-fine transparent yellow iron oxide 3 parts, 3 parts, organic silicon modified by polyether oxygen alkane, dibutyl phthalate 2 parts, sodium metaborate 1 part, dimethylbenzene 30 parts, ethanol 40 parts.
The preparation method of described ultra-fine transparent yellow iron oxide first gets liquor ferri trichloridi and sodium hydroxide solution to react the obtained ironic hydroxide water-sol at 60-65 DEG C, then add sodium laurylsulfonate and carry out surface treatment, chloroform extraction is used after being cooled to room temperature, get subnatant in 150-155 DEG C of oven dry, finally grind and get final product.
Carry out the preparation of nano montmorillonite modified Epoxy-resin-type powder paint according to above-mentioned raw materials formula, comprise the following steps:
(1) nano imvite is scattered in 5% quaternary ammonium salt solution, be warming up to 50-60 DEG C of reaction 1h, then epoxy resin, dimethylbenzene and ethanol is added after being cooled to room temperature, mixture is supersound process 15min under ultrasonic frequency 22kHz, power 100W first, then microwave treatment 10min under microwave frequency 2450MHz, power 300W, obtains material I;
(2) ceramics powder, white carbon black and ultra-fine transparent yellow iron oxide are joined in ball mill, after ball milling 10min, add material I again, be milled to granularity and be less than 20 μm, then in 70-80 DEG C of oven dry, obtain material II;
(3) material II, ethylene glycol bis trimellitic anhydride ester, organic silicon modified by polyether oxygen alkane, dibutyl phthalate and sodium metaborate are joined in high-speed mixer, be warming up to 90-100 DEG C, after insulation 30min, material is added in screw extrusion press and melt extrude, the material extruded is slit into sheet through cooling press truncation, be ground into through pulverizing mill the powder that particle diameter is 20-35 μm again, finally carry out metering packing.
Embodiment 2
A kind of nano montmorillonite modified Epoxy-resin-type powder paint, be made up of the raw material of following mass fraction:
Epoxy resin 105 parts, nano imvite 18 parts, 5% quaternary ammonium salt solution 22 parts, ceramics powder 11 parts, ethylene glycol bis trimellitic anhydride ester 9 parts, white carbon black 6 parts, ultra-fine transparent yellow iron oxide 4 parts, 4 parts, organic silicon modified by polyether oxygen alkane, dibutyl phthalate 2 parts, sodium metaborate 1 part, dimethylbenzene 32 parts, ethanol 42 parts.
The preparation method of the present embodiment powder coating is with embodiment 1.
Embodiment 3
A kind of nano montmorillonite modified Epoxy-resin-type powder paint, be made up of the raw material of following mass fraction:
Epoxy resin 110 parts, nano imvite 20 parts, 5% quaternary ammonium salt solution 25 parts, ceramics powder 12 parts, ethylene glycol bis trimellitic anhydride ester 10 parts, white carbon black 8 parts, ultra-fine transparent yellow iron oxide 5 parts, 5 parts, organic silicon modified by polyether oxygen alkane, dibutyl phthalate 3 parts, sodium metaborate 2 parts, dimethylbenzene 35 parts, ethanol 45 parts.
The preparation method of the present embodiment powder coating is with embodiment 1.
On cold-rolled steel sheet after the powder coating obtained by embodiment 1-3 adopts high-pressure electrostatic spray gun to be sprayed on the thick rust cleaning of 0.5mm, oil removing and phosphatization respectively, then at 160 DEG C, 15min is toasted, coat-thickness 60 μm, carry out a series of performance test to coating, result is as shown in table 1:
The performance test results of table 1 embodiment 1-3 coating
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (3)
1. a nano montmorillonite modified Epoxy-resin-type powder paint, is characterized in that, is made up of the raw material of following mass fraction:
Epoxy resin 100-110 part, nano imvite 15-20 part, 5% quaternary ammonium salt solution 20-25 part, ceramics powder 10-12 part, ethylene glycol bis trimellitic anhydride ester 8-10 part, white carbon black 5-8 part, ultra-fine transparent yellow iron oxide 3-5 part, organic silicon modified by polyether oxygen alkane 3-5 part, dibutyl phthalate 2-3 part, sodium metaborate 1-2 part, dimethylbenzene 30-35 part, ethanol 40-45 part.
2. nano montmorillonite modified Epoxy-resin-type powder paint according to claim 1, it is characterized in that: the preparation method of described ultra-fine transparent yellow iron oxide first gets liquor ferri trichloridi and sodium hydroxide solution to react the obtained ironic hydroxide water-sol at 60-65 DEG C, then add sodium laurylsulfonate and carry out surface treatment, chloroform extraction is used after being cooled to room temperature, get subnatant in 150-155 DEG C of oven dry, finally grind and get final product.
3. a preparation method for nano montmorillonite modified Epoxy-resin-type powder paint as claimed in claim 1, is characterized in that, comprise the following steps:
(1) nano imvite is scattered in 5% quaternary ammonium salt solution, be warming up to 50-60 DEG C of reaction 0.5-1h, then epoxy resin, dimethylbenzene and ethanol is added after being cooled to room temperature, mixture is supersound process 10-15min under ultrasonic frequency 22kHz, power 100-200W first, then microwave treatment 5-10min under microwave frequency 2450MHz, power 300-400W, obtains material I;
(2) ceramics powder, white carbon black and ultra-fine transparent yellow iron oxide are joined in ball mill, after ball milling 10-15min, add material I again, be milled to granularity and be less than 20 μm, then in 70-80 DEG C of oven dry, obtain material II;
(3) material II, ethylene glycol bis trimellitic anhydride ester, organic silicon modified by polyether oxygen alkane, dibutyl phthalate and sodium metaborate are joined in high-speed mixer, be warming up to 90-100 DEG C, after insulation 20-30min, material is added in screw extrusion press and melt extrude, the material extruded is slit into sheet through cooling press truncation, be ground into through pulverizing mill the powder that particle diameter is 20-35 μm again, finally carry out metering packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510329602.6A CN104946079A (en) | 2015-06-15 | 2015-06-15 | Nano-montmorillonite-modified epoxy resin type powder coating and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510329602.6A CN104946079A (en) | 2015-06-15 | 2015-06-15 | Nano-montmorillonite-modified epoxy resin type powder coating and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419560A (en) * | 2015-12-12 | 2016-03-23 | 常州大学 | Method for preparing nano-montmorillonite-based anti-corrosion coating |
| CN106085122A (en) * | 2016-07-07 | 2016-11-09 | 合肥市燕美粉末涂料有限公司 | A kind of auto parts machinery spring special montmorillonite intercalation polymeric modification epoxy resin based powder coating and preparation method thereof |
| CN106085141A (en) * | 2016-07-07 | 2016-11-09 | 合肥市燕美粉末涂料有限公司 | Montmorillonite intercalation polymeric modification epoxy resin based powder coating that a kind of spun cast pipe is special and preparation method thereof |
| CN107309147A (en) * | 2017-06-24 | 2017-11-03 | 佛山市亿永创网络科技有限公司 | A kind of electronic product painting method based on low internal stress |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1546585A (en) * | 2003-12-16 | 2004-11-17 | 宁波市鄞州东海粉末涂料有限公司 | Nanometer modified epoxy powder coating preparation process |
| CN103289532A (en) * | 2013-07-05 | 2013-09-11 | 河北工业大学 | Preparation method of epoxy powder coating highly resisting cathodic disbonding |
-
2015
- 2015-06-15 CN CN201510329602.6A patent/CN104946079A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1546585A (en) * | 2003-12-16 | 2004-11-17 | 宁波市鄞州东海粉末涂料有限公司 | Nanometer modified epoxy powder coating preparation process |
| CN103289532A (en) * | 2013-07-05 | 2013-09-11 | 河北工业大学 | Preparation method of epoxy powder coating highly resisting cathodic disbonding |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419560A (en) * | 2015-12-12 | 2016-03-23 | 常州大学 | Method for preparing nano-montmorillonite-based anti-corrosion coating |
| CN106085122A (en) * | 2016-07-07 | 2016-11-09 | 合肥市燕美粉末涂料有限公司 | A kind of auto parts machinery spring special montmorillonite intercalation polymeric modification epoxy resin based powder coating and preparation method thereof |
| CN106085141A (en) * | 2016-07-07 | 2016-11-09 | 合肥市燕美粉末涂料有限公司 | Montmorillonite intercalation polymeric modification epoxy resin based powder coating that a kind of spun cast pipe is special and preparation method thereof |
| CN107309147A (en) * | 2017-06-24 | 2017-11-03 | 佛山市亿永创网络科技有限公司 | A kind of electronic product painting method based on low internal stress |
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Application publication date: 20150930 |