CN102277065A - Epoxy resin powder coating and preparation method thereof - Google Patents
Epoxy resin powder coating and preparation method thereof Download PDFInfo
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- CN102277065A CN102277065A CN2011101904457A CN201110190445A CN102277065A CN 102277065 A CN102277065 A CN 102277065A CN 2011101904457 A CN2011101904457 A CN 2011101904457A CN 201110190445 A CN201110190445 A CN 201110190445A CN 102277065 A CN102277065 A CN 102277065A
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Abstract
The invention belongs to the field of coatings and in particular relates to an epoxy resin powder coating and a preparation method thereof. The preparation method comprises the following steps: modifying nano SiO2 by adopting a silane coupling agent KH-550 to reduce the surface energy of inorganic particles and improve the dispersion condition of nano SiO2, then carry out blending modification on epoxy resins by adopting the modified nano SiO2 particles, putting 100 parts of nano-SiO2-modified epoxy resins, 2-3 parts of curing agent, 0.2-0.5 part of levelling agent, 5-8 parts of toughening agent and 25-30 parts of filler by weight into a twin-screw extruder to be fused, extruded and granulated, grinding the product into fine powder with a plastic grinder and sieving the fine powder to take the components with fineness being 180-200 meshes, thus obtaining the product. The epoxy resin powder coating has good toughness, good flowability, strong adhesion with base materials, good strength and heat resistance and large market space.
Description
Technical field
The invention belongs to paint field, be specifically related to a kind of epoxy powder coating and preparation method thereof.
Background technology
Powder coating is a novel environment-friendly coating, it does not contain organic solvent fully, with the powder morphology application and form firm coating, have resource-saving, economize the energy, nuisanceless, labor productivity is high and be convenient to carry out advantage such as automation paint, is one of important development direction of paint industry.Powder coating is obtaining widespread use aspect the application of refrigerator, air-conditioning, washing machine, microwave oven, light fixture, highway barrier, petroleum pipe line etc.Powder coating can be divided into thermoplastic powder coating and thermosetting powder coating(s), wherein thermosetting powder coating(s) is the main flow kind of powder coating, can be divided into several big classes such as polyester type, epoxy type, polyurethane-type, acrylic type and mixed type thereof again by the difference of its film-forming polymer.
Epoxypaint has higher physical strength and cohesive force, especially to the strong adhesion of metal, chemical proofing and oil-proofness are also fine, particularly resistance to acids and bases is very good, has advantages such as easily processing modified simultaneously.But epoxy resin cure is fragility later on, causes the toughness of epoxide powder coating relatively poor relatively.
Summary of the invention
The present invention makes full use of the existing advantage of Resins, epoxy, by compositional refinements, overcomes the shortcoming of Resins, epoxy as the coating base material simultaneously.
In order to achieve the above object, the present invention takes following technique means:
A kind of preparation method of epoxy powder coating comprises following technological process:
1, the present invention adopts silane resin acceptor kh-550 that nano material has been carried out modification.Described nanometer SiO
2Method of modifying is: with nanometer SiO
2, silane resin acceptor kh-550 and acetone joins in the reaction vessel by a certain percentage, wherein dosage of silane coupling agent is 4%～4.5% of a nano silicon quality, nanometer SiO
2With the weight ratio of acetone be 1: 3, heating in water bath is warmed up to 60 ℃ gradually, stir and sonic oscillation, constant temperature backflow 30min, suction filtration, with absolute ethanol washing three times, oven dry obtains the nanometer SiO after the surface modification
2
2, the blending and modifying of Resins, epoxy; With above-mentioned modification SiO
2Nanoparticle is put into general plastics mixing equipment with Resins, epoxy and is mixed, and mixing time is 15～30min, forms the homodisperse powdery polymer mixture of component.Wherein the two mass ratio is: SiO
2Nanoparticle: Resins, epoxy=2～5: 100.
3, with above-mentioned nanometer SiO
2The Resins, epoxy of modification 100 parts of (weight part), 2～3 parts in solidifying agent, 0.2～0.5 part of flow agent, 5～8 parts of toughner, fillers are put into twin screw extruder for 25～30 parts, carry out fusion, extrude and granulation, product is ground into fine powder by plastic crusher and sieves, and gets 180-200 purpose component and promptly gets product of the present invention.
Resins, epoxy of the present invention is bisphenol A type epoxy resin;
Solidifying agent of the present invention is one or more in resol, Dyhard RU 100, the modification Dyhard RU 100 imidazoles;
Flow agent of the present invention is the high-melting-point paraffin wax;
Toughner of the present invention is one or more in nylon powder, the polyvinyl butyral acetal;
Filler of the present invention is wollastonite powder NyadM400 and six titanium whisker mixtures, and wherein the two mass ratio is a wollastonite powder: six titanium whiskers=4: 1.
The present invention can also add pigment, for example titanium white, zinc oxide, carbon black, graphite, iron oxide yellow, chrome green, iron oxide red etc., and other auxiliary agent, for example antioxidant, photostabilizer etc. according to actual needs.
Beneficial effect of the present invention:
1, the present invention adopts silane resin acceptor kh-550 to nanometer SiO
2Carry out modification, reduced the surface energy of inorganic particulate, improved nanometer SiO
2The dispersion situation, silane coupling agent and organism matrix have very strong interaction in addition, have improved the polarity of powder coating, have strengthened the tack of itself and metallic substance;
2, modified Nano SiO of the present invention
2The adding of particle is brittle shortcoming after having improved epoxy resin cure, has improved its toughness, and has improved the intensity and the resistance toheat of epoxypaint;
3, preparation technology of the present invention is simple, becomes cost low;
4, the epoxy powder coating of the present invention's preparation has good flowability, and filming property is good, and surfacing is smooth, and it is good to decorate with protection effect, and the market space is huge.
Embodiment
Embodiment 1
Epoxy powder coating preparation technology is as follows:
1, with nanometer SiO
2100g, silane coupling agent (KH-550) 4.8g and acetone 360g join in the reaction vessel, and heating in water bath is warmed up to 60 ℃ gradually, stir and sonic oscillation constant temperature backflow 30min, suction filtration, behind absolute ethanol washing three times, oven dry obtains the nanometer SiO after the surface modification
2
2, with above-mentioned modification SiO
2Nanoparticle 5g and Resins, epoxy 100g put into general plastics mixing equipment and are mixed, and mixing time is 20min, form the homodisperse powdery polymer mixture of component.
3, with above-mentioned nanometer SiO
2The Resins, epoxy 100g of modification, resol 2g, high-melting-point paraffin wax 0.2g, nylon powder 5g, wollastonite powder (NyadM400) 24g and six titanium whisker mixture 6g put into twin screw extruder, carry out fusion, extrude and granulation, product is ground into fine powder by plastic crusher and sieves, and gets 180-200 purpose component and promptly gets product of the present invention.
Embodiment 2
Preparation technology is as follows for epoxy resin powder art coating:
1, with nanometer SiO
2100g, silane coupling agent (KII-550) 4.5g and acetone 300g join in the reaction vessel, and heating in water bath is warmed up to 60 ℃ gradually, stir and sonic oscillation constant temperature backflow 30min, suction filtration, behind absolute ethanol washing three times, oven dry obtains the nanometer SiO after the surface modification
2
2, with above-mentioned modification SiO
2Nanoparticle 2g and Resins, epoxy 100g put into general plastics mixing equipment and are mixed, and mixing time is 25min, form the homodisperse powdery polymer mixture of component.
3, with above-mentioned nanometer SiO
2The Resins, epoxy 100g of modification, resol 3g, high-melting-point paraffin wax 0.5g, nylon powder 8g, wollastonite powder (NyadM400) 20g and six titanium whisker mixture 5g put into twin screw extruder, carry out fusion, extrude and granulation, product is ground into fine powder by plastic crusher and sieves, and gets 180-200 purpose component and promptly gets product of the present invention.
Embodiment 3
Epoxy powder coating preparation technology is as follows:
1, with nanometer SiO
2100g, silane coupling agent (KH-550) 4g and acetone 300g join in the reaction vessel, and heating in water bath is warmed up to 60 ℃ gradually, stir and sonic oscillation constant temperature backflow 30min, suction filtration, behind absolute ethanol washing three times, oven dry obtains the nanometer SiO after the surface modification
2
2, with above-mentioned modification SiO
2Nanoparticle 3g and Resins, epoxy 100g put into general plastics mixing equipment and are mixed, and mixing time is 30min, form the homodisperse powdery polymer mixture of component.
3, with above-mentioned nanometer SiO
2The Resins, epoxy 100g of modification, resol 2g, high-melting-point paraffin wax 0.3g, nylon powder 6g, wollastonite powder (NyadM400) 20g and six titanium whisker mixture 5g put into twin screw extruder, carry out fusion, extrude and granulation, product is ground into fine powder by plastic crusher and sieves, and gets 180-200 purpose component and promptly gets product of the present invention.
By the Performance Detection to the foregoing description, it detects data and sees the following form:
Claims (3)
1. epoxy powder coating and preparation method thereof is characterized by and comprises following technological process:
(1) with nanometer SiO
2, silane resin acceptor kh-550 and acetone joins in the reaction vessel by a certain percentage, heating in water bath is warmed up to 60 ℃ gradually, stir and sonic oscillation, constant temperature backflow 30min, suction filtration, with absolute ethanol washing three times, oven dry obtains the nanometer SiO after the surface modification
2
(2) with above-mentioned modification SiO
2Nanoparticle is put into general plastics mixing equipment with Resins, epoxy and is mixed, and mixing time is 15～30min, forms the homodisperse powdery polymer mixture of component;
(3) with above-mentioned nanometer SiO
2100 parts of the Resins, epoxy of modification, 2～3 parts in solidifying agent, 0.2～0.5 part of flow agent, 5～8 parts of toughner, filler are put into twin screw extruder for 25～30 parts, carry out fusion, extrude and granulation, product is ground into fine powder by plastic crusher and sieves, and gets 180-200 purpose component and promptly gets product of the present invention.
2. one kind is characterized by by the described epoxide powder coating of claim 1: described dosage of silane coupling agent is 4%～4.5% of a nano silicon quality, nanometer SiO
2With the weight ratio of acetone be 1: 3.
3. one kind is characterized by SiO by the described epoxide powder coating of claim 1
2Nanoparticle and Resins, epoxy mass ratio are 2～5: 100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101904457A CN102277065A (en) | 2011-07-08 | 2011-07-08 | Epoxy resin powder coating and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101904457A CN102277065A (en) | 2011-07-08 | 2011-07-08 | Epoxy resin powder coating and preparation method thereof |
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| CN102277065A true CN102277065A (en) | 2011-12-14 |
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| CN2011101904457A Pending CN102277065A (en) | 2011-07-08 | 2011-07-08 | Epoxy resin powder coating and preparation method thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103113712A (en) * | 2013-02-04 | 2013-05-22 | 佛山市科富科技有限公司 | Preparation method and application of modified nano-silicon dioxide toughened epoxy resin |
| CN103289532A (en) * | 2013-07-05 | 2013-09-11 | 河北工业大学 | Preparation method of epoxy powder coating highly resisting cathodic disbonding |
| CN103666194A (en) * | 2013-11-26 | 2014-03-26 | 湖州立方实业有限公司 | Photo-cured modified epoxy resin powder coating |
| CN104671806A (en) * | 2015-01-23 | 2015-06-03 | 湖州丰盛新材料有限公司 | Preparation method of nano silicon dioxide anti-skinning spraying coating |
| CN104962169A (en) * | 2015-06-25 | 2015-10-07 | 安徽华辉塑业科技有限公司 | High-temperature-resistant epoxy resin powder coating |
| CN105017925A (en) * | 2015-06-25 | 2015-11-04 | 安徽华辉塑业科技有限公司 | Preparation method of heat-resistant powdery coating |
| CN105819744A (en) * | 2016-04-27 | 2016-08-03 | 山东乾元工程集团有限公司 | Water-resistant cement crack filling additive and use method thereof |
| CN107972378A (en) * | 2017-11-14 | 2018-05-01 | 温州富捷科技股份有限公司 | A kind of cardboard printing technique |
| CN110041794A (en) * | 2019-02-25 | 2019-07-23 | 李志平 | A kind of toughening type epoxy powder coating |
| CN110105842A (en) * | 2019-04-23 | 2019-08-09 | 天津翔盛新材料有限公司 | A kind of dedicated drag reduction wax control powdery paints of crude oil pipeline and application |
| CN110396337A (en) * | 2019-07-24 | 2019-11-01 | 浙江衢州贝利德涂料有限公司 | A kind of preparation method of nano thermal insulation heat-insulating energy-saving paint |
| CN113061386A (en) * | 2021-04-30 | 2021-07-02 | 潍坊东方钢管有限公司 | Preparation process of nano composite epoxy powder coating with different dimensions |
| CN113667373A (en) * | 2021-07-21 | 2021-11-19 | 潍坊东方钢管有限公司 | Preparation method of silane modified nano silicon dioxide composite epoxy resin powder coating |
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| 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 |
| CN101240134A (en) * | 2008-03-06 | 2008-08-13 | 大庆石油管理局 | Epoxy modifying polyethylene bi-component powdery paints |
| CN101857768A (en) * | 2010-06-18 | 2010-10-13 | 上海纳米技术及应用国家工程研究中心有限公司 | Ultrasonically-modified nano heat-insulating powder coating for aluminum alloy section and method for preparing same |
-
2011
- 2011-07-08 CN CN2011101904457A patent/CN102277065A/en active Pending
Patent Citations (3)
| 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 |
| CN101240134A (en) * | 2008-03-06 | 2008-08-13 | 大庆石油管理局 | Epoxy modifying polyethylene bi-component powdery paints |
| CN101857768A (en) * | 2010-06-18 | 2010-10-13 | 上海纳米技术及应用国家工程研究中心有限公司 | Ultrasonically-modified nano heat-insulating powder coating for aluminum alloy section and method for preparing same |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103113712B (en) * | 2013-02-04 | 2015-04-01 | 广东科富科技股份有限公司 | Preparation method and application of modified nano-silicon dioxide toughened epoxy resin |
| CN103113712A (en) * | 2013-02-04 | 2013-05-22 | 佛山市科富科技有限公司 | Preparation method and application of modified nano-silicon dioxide toughened epoxy resin |
| CN103289532B (en) * | 2013-07-05 | 2016-08-24 | 河北工业大学 | The preparation method of the epoxide powder coating that a kind of high antikathode is peeled off |
| CN103289532A (en) * | 2013-07-05 | 2013-09-11 | 河北工业大学 | Preparation method of epoxy powder coating highly resisting cathodic disbonding |
| CN103666194A (en) * | 2013-11-26 | 2014-03-26 | 湖州立方实业有限公司 | Photo-cured modified epoxy resin powder coating |
| CN104671806A (en) * | 2015-01-23 | 2015-06-03 | 湖州丰盛新材料有限公司 | Preparation method of nano silicon dioxide anti-skinning spraying coating |
| CN104671806B (en) * | 2015-01-23 | 2016-08-24 | 湖州丰盛新材料有限公司 | A kind of preparation method of nano silicon resistive connection skin spray paint |
| CN104962169A (en) * | 2015-06-25 | 2015-10-07 | 安徽华辉塑业科技有限公司 | High-temperature-resistant epoxy resin powder coating |
| CN105017925A (en) * | 2015-06-25 | 2015-11-04 | 安徽华辉塑业科技有限公司 | Preparation method of heat-resistant powdery coating |
| CN105819744A (en) * | 2016-04-27 | 2016-08-03 | 山东乾元工程集团有限公司 | Water-resistant cement crack filling additive and use method thereof |
| CN105819744B (en) * | 2016-04-27 | 2018-01-30 | 山东乾元工程集团有限公司 | A kind of water-resistant type concrete crack filling additive and application method |
| CN107972378B (en) * | 2017-11-14 | 2019-10-18 | 温州富捷科技股份有限公司 | A kind of cardboard printing technique |
| CN107972378A (en) * | 2017-11-14 | 2018-05-01 | 温州富捷科技股份有限公司 | A kind of cardboard printing technique |
| CN110041794A (en) * | 2019-02-25 | 2019-07-23 | 李志平 | A kind of toughening type epoxy powder coating |
| CN110105842A (en) * | 2019-04-23 | 2019-08-09 | 天津翔盛新材料有限公司 | A kind of dedicated drag reduction wax control powdery paints of crude oil pipeline and application |
| CN110105842B (en) * | 2019-04-23 | 2021-08-31 | 天津翔盛新材料有限公司 | Special drag-reducing and wax-preventing powder coating for crude oil conveying pipeline and application |
| CN110396337A (en) * | 2019-07-24 | 2019-11-01 | 浙江衢州贝利德涂料有限公司 | A kind of preparation method of nano thermal insulation heat-insulating energy-saving paint |
| CN113061386A (en) * | 2021-04-30 | 2021-07-02 | 潍坊东方钢管有限公司 | Preparation process of nano composite epoxy powder coating with different dimensions |
| CN113667373A (en) * | 2021-07-21 | 2021-11-19 | 潍坊东方钢管有限公司 | Preparation method of silane modified nano silicon dioxide composite epoxy resin powder coating |
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Application publication date: 20111214 |