CN1908096A - Electrostatic spraying powder coating for magnetic wire and enameled wire and preparation technique thereof - Google Patents
Electrostatic spraying powder coating for magnetic wire and enameled wire and preparation technique thereof Download PDFInfo
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- CN1908096A CN1908096A CN 200610041282 CN200610041282A CN1908096A CN 1908096 A CN1908096 A CN 1908096A CN 200610041282 CN200610041282 CN 200610041282 CN 200610041282 A CN200610041282 A CN 200610041282A CN 1908096 A CN1908096 A CN 1908096A
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- powder coating
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- electrostatic spraying
- enameled wire
- insulated wire
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Abstract
The invention discloses a static spraying powder paint and preparing technology for electromagnetic wire and enameled wire, which comprises the following parts: 60-88% resin, 7-15% solidifier, 1-5% dye, 0-20% filler, 2-6% adjuvant. The preparing method comprises the following steps: blending the materials together; fusing to squeeze; cooling to indoor temperature; grinding into piece shaped material; separating the grinded powder into less than 160 order semi-product; demagnetizing to obtain the product.
Description
Technical field
What the present invention relates to is a kind of functional paint, relates in particular to a kind of Electrostatic spray powder coating and its preparation process for wire and enameled wire.
Background technology
Develop rapidly along with industrial, the pollution problem that the waste water,waste gas and industrial residue that produces in the industrial production causes ecotope has been the serious problems that become international.Therefore China also pays much attention to and preserves the ecological environment, and emphasizes the pollution problem that prevents that industrial development from bringing environment again and again, and the free of contamination industry of seeking development is brought benefit to the mankind.
Needs along with China's modernization industry construction and outlet; the insulated wire of industries such as electromechanics, electronics, communication, automatization control and the consumption of enameled wire constantly increase; requirement to quality product is simultaneously also improving; and in the production process of these products, environment protection and the requirement that improves aspects such as labor productivity are also being improved.
From the aluminum steel that electromechanical industries oxide film commonly used is handled, use the vitriol oil to carry out aluminum steel in process of production in a large number and handle, at production plant a large amount of acid mists that volatilize, taste is very heavy, and not only respiratory tract and the skin to the site operation personnel causes serious injury; Simultaneously production plant and surrounding environment are also brought serious pollution, the waste water of generation also causes severe contamination to environment; And the production rate of this production technique is slower, once can only handle 10 (root) aluminum steels.In addition, the enameled wire that electromechanical industries are commonly used, the solvent-thinned paint envelope curve that uses is to contain 50% organic solvent at present, this solvent-borne type enamelled wire insulated paint in use 50% solvent is to vapor away in the coating process to cause atmospheric dying, and this solvent also brings certain harm to HUMAN HEALTH; The volatilization of solvent simultaneously also causes the waste of resource, can only use 50% of material; There is the safety problem of catching fire in production and the use in addition; Need to be coated with several roads in process of production and just can reach the thickness of filming and requiring, it is long to be coated with ETL estimated time of loading, and labor productivity is also lower.
Summary of the invention
The objective of the invention is to have the pollution problem of the vitriol oil, organic solvent in present insulated wire and the Production of Enamel Wires to human body and environment at solving.Use insulated wire of the present invention and enameled wire electrostatic spraying powder coating, can avoid the three wastes problems such as waste gas, waste water and waste residue in insulated wire and the Production of Enamel Wires fully, improve simultaneously labor productivity greatly, coating thickness is control easily also, and quality product is also more stable.The objective of the invention is to realize: a kind of insulated wire and enameled wire electrostatic spraying powder coating by following technical proposal, it is characterized in that: described powder coating is made up of resin, solidifying agent, pigment, filler and auxiliary agent, and its constituent mass per-cent is respectively: resin accounts for 60～88%; Solidifying agent accounts for 7～15%; Pigment accounts for 1～5%; Filler accounts for 0～20%; Auxiliary agent accounts for 2～6%.
Particularly: described resin is the modified epoxy of polyfunctionality, the high temperature resistance polyester resin or the modified polyester resin of end carboxyl; Described solidifying agent is modification phenolic hydroxyl group resin, isocyanuric acid three-glycidyl ester or modification hydroxyalkyl amide; Described pigment is high temperature resistant, transformer oil resistant, chemical resistant iron oxide red, titanium dioxide, chrome yellow, permanent yellow, permanent bordeaux or carbon black; Barium sulfate, kaolin, wollastonite powder, silica powder or mica powder that described filler is high temperature resistant, chemical-resistant resistance, electrical insulating property is good; Described auxiliary agent is flow agent, dispersion agent, air release agent, growth agent, corner hiding power properties-correcting agent, toughner, promotor or powder anti-hard caking agent.Above-mentioned insulated wire and the enameled wire preparation technology of electrostatic spraying powder coating, adopt following steps:
(1) by the prescription in consumption weigh after, carry out pre-mixing with high-speed mixing equipment;
(2) the pre-mixing material is with melt extruding mixing in single spiral shell thick stick forcing machine or the double-spiral bar forcing machine, and the melt zone temperature is 80～90 ℃, and the mixing section temperature is 105～125 ℃;
(3) through melt extruding the blended material, be cooled to room temperature, and be crushed to sheet material by cooling roller and cooling zone;
(4) sheet material is ground into fines with air classifying mill (or being the ACM mill), separates obtaining the powder coating work in-process of size-grade distribution below 160 orders then with the stage equipment that sieves through cyclonic separator;
(5) this work in-process are removed magnetic substance with magnetic plant again and are obtained finished product.
Patent publication No. is CN1563216A, a kind of insulated wire insulating powder coating is also disclosed, described powder coating is different with its disclosed content components contents, every kind of component prescription is also different but invent, because of with the insulating powder coating property significant improvement being arranged than the disclosed insulated wire of CN1563216A a bit, below specifically insulated wire of the present invention and enameled wire are compared with insulating powder coating for the CN1563216A insulated wire with electrostatic spraying powder coating and publication number:
One, the consumption of the main moiety of coating
| The present invention | CN 1563216A publication | ||
| Resin | 60～88％ | Resin | 48～88％ |
| Solidifying agent | 7～15％ | Solidifying agent | 8～48％ |
| Pigment | 1～5％ | Pigment | 1～3％ |
| Filler | 0～20％ | Filler | 1～2％ |
| Auxiliary agent | 2～6％ | Auxiliary agent | 2～3％ |
Because it is very big that the prescription of two kinds of systems is formed difference, wherein the difference of the percentage composition of each component is also bigger.
Two, aspect the composition of film forming matter: aspect resin, what use in the CN 1563216A publication is ordinary epoxy resin and vibrin, because film performance does not reach user's requirement, in this patent, select the phenol aldehyde modified Resins, epoxy and the vibrin that resistance to elevated temperatures is arranged of polyfunctionality for use; Aspect solidifying agent, the present invention selects for use measures such as modified by polyacid phenolic hydroxyl group resin and modification hydroxyalkyl amide to make film performance reach the new requirement of user equally.
Three, aspect the kind and consumption of filler: the present invention adopts the filler that antirust, heat-resisting and insulation function are arranged, and consumption is up to 10～20 times of preceding patent, makes to be improved aspect resistance to elevated temperatures.
Four, aspect auxiliary agent: the present invention not only kind increases, and has increased consumption, and the powder coating overall performance is improved, and function also increases, and can carry out application with triboelectrostatic gun, makes film quality better.
Five, powder coating of the present invention has increased magnetic separation process in manufacturing process, can remove the magnetic substance that influences electrical insulating property in the product, and the electrical insulation capability of powder coating is improved.
Six, powder coating of the present invention not only can the application of high pressure static electricity dust gun because the improvement of prescription; Can also carry out application with friction charged dust gun, this coating process can be avoided the Faraday shield effect, and the number of paint line can increase, and not only can improve production rate, the film uniformity that is coated with of application also is improved, has improved quality product.
Seven, the performance of the resistant to chemical media such as transformer oil resistant of filming of product of the present invention is more than doubled than original product, can use in the product that needs bubble transformer wet goods chemical mediator; The resistance toheat of filming of this patent product improves 20～50 ℃ than original product in addition.Can use than original product thermotolerance and require in the higher product.
The invention has the beneficial effects as follows: insulated wire and enameled wire electrostatic spraying powder coating, do not produce waste water, waste gas and waste residue in process of production, can not produce any pollution to environment.With electrostatic spraying can the application aluminum steel and copper cash replace insulated wire and enameled wire, can hand spray, also can the automatic spraying construction application.Electrostatic spraying device can carry out application with the charged high pressure static electricity spray gun of corona discharge method; Also can carry out application with friction charged electrostatic powder paint gun.This electrostatic powder coating equipment is in the production process of application insulated wire and enameled wire, do not produce waste gas, waste water and waste residue, the powder coating of spray ease can reclaim by recovery system again to be used, in closed system, produce, can not produce any pollution to environment, the utilization ratio of coating almost reaches 100%, belongs to the resource-conserving product.Once can 40 (root) aluminum steels of application and copper cash, the labor productivity height.
Embodiment
The thermosetting powder coating(s) that insulated wire of the present invention and enameled wire electrostatic spraying powder coating are made up of resin, solidifying agent, pigment, filler and auxiliary agent, resin can be the modified epoxy of polyfunctionality, the high temperature resistance polyester resin of holding carboxyl, modified polyester resin etc.; Solidifying agent can be modification phenolic hydroxyl group resin, isocyanuric acid three-glycidyl ester, modification hydroxyalkyl amide etc.; That pigment adopts is high temperature resistant, transformer oil resistant, chemical resistant iron oxide red, titanium dioxide, chrome yellow, permanent yellow, permanent bordeaux, carbon black etc.; That filler adopts is heat-resisting, chemical-resistant resistance, barium sulfate that electrical insulating property is good, kaolin, wollastonite powder, silica powder, mica powder etc.; Auxiliary agent adopts the levelling property that helps powder coating, improve the electrostatic coating performance of powder coating, the flow agent of the snappiness of filming and package stability, dispersion agent, air release agent, growth agent, corner hiding power properties-correcting agent, toughner, promotor, powder anti-hard caking agent etc.
In the composition of above-mentioned powder coating of the present invention, in prescription, calculate by mass percentage, resin accounts for 60～88%; Solidifying agent accounts for 7～15%; Pigment accounts for 1～5%; Filler accounts for 0～20%; Auxiliary agent accounts for 2～6%.By the prescription in consumption weigh after, carry out pre-mixing with high-speed mixing equipment; Premixed material is with melt extruding mixing equipment, and 80～90 ℃ of melt zone temperature, the mixing section temperature melt extrudes mixing for 105～125 ℃, is cooled to room temperature and broken with cooling roller and cooling zone then; Broken material grinds fine pulverizing with air classifying again, and process cyclonic separation and 160 eye mesh screens are crossed screen sizing and obtained work in-process then; Last obtain the insulated wire and the enameled wire electrical isolation powder coating that are applicable to that electrostatic powder coating is used through the magnetic separation of magnetic plant again.
Below listing four of the present invention implements prescription and each and implements insulated wire that prescription obtains by preparation technology of the present invention and enameled wire with the electrostatic spraying powder coating and the performance index of filming.
| Formulation Example one | Formulation Example two | ||
| Prescription is formed | Consumption (mass percent) | Prescription is formed | Consumption (mass percent) |
| Modified epoxy | 83 | Modified epoxy | 80 |
| Modification phenolic hydroxyl group resin | 17 | The modification hydroxyalkyl amide | 2 |
| Auxiliary agent-1 flow agent | 2.0 | Auxiliary agent-1 flow agent | 2.0 |
| Auxiliary agent-2 dispersion agent | 1.5 | Auxiliary agent-2 dispersion agent | 1.5 |
| Auxiliary agent-3 air release agent | 0.5 | Auxiliary agent-3 air release agent | 0.5 |
| Pigment | 3.0 | Auxiliary agent-4 increases the electrodispersion agent | 0.5 |
| - | - | Pigment | 5.0 |
| - | - | Filler | 15 |
| Formulation Example three | Formulation Example four | ||
| Prescription is formed | Consumption (mass percent) | Prescription is formed | Consumption (mass percent) |
| The high temperature resistance polyester resin | 93 | Modified polyester resin | 95 |
| Triglycidyl isocyanurate | 7 | The modification hydroxyalkyl amide | 5 |
| Auxiliary agent-1 flow agent | 2.0 | Auxiliary agent-1 flow agent | 2.0 |
| Auxiliary agent-2 dispersion agent | 1.5 | Auxiliary agent-2 dispersion agent | 1.5 |
| Auxiliary agent-3 air release agent | 0.5 | Auxiliary agent-3 air release agent | 0.5 |
| Pigment | 3.0 | Auxiliary agent-4 increases the electrodispersion agent | 2.0 |
| - | - | Pigment | 5.0 |
| - | - | Filler | 20 |
Powder coating and film performance technical indicator
| Formula number | Prescription one, prescription two | Prescription three, prescription four |
| Powder coating | ||
| Outward appearance | Color and luster is even, the inclusion-free powder | Color and luster is even, the inclusion-free powder |
| Density/(g/m 3) | 1.2～1.5 | 1.2～1.5 |
| Granularity | Cross 160 orders | Cross 160 orders |
| Film performance | ||
| Outward appearance | Smooth, allow slight tangerine line | Smooth, allow slight tangerine line |
| Gloss | ＞60 | ＞60 |
| Sticking power | ＜1 grade | ＜1 grade |
| Snappiness | ≤2mm | ≤2mm |
| Pencil hardness | H | H |
| Impact strength | ≥50kg/cm | ≥50kg/cm |
| Anti-5% hydrochloric acid | The 1000h no change | The 240h no change |
| Anti-5% sodium hydroxide | The 1000h no change | 240h is non-foaming |
| Transformer oil resistant | The 1000h no change | The 240h no change |
| Voltage breakdown | ＞3.0KV | ＞3.0KV |
| Volume specific resistance | ＞3.0×10 16Ω.cm | ＞3.0×10 16Ω.cm |
| Condition of cure | 180℃/10min | 200℃/10min |
Claims (7)
1. insulated wire and enameled wire electrostatic spraying powder coating, it is characterized in that: described powder coating is made up of resin, solidifying agent, pigment, filler and auxiliary agent, and its constituent mass per-cent is respectively: resin accounts for 60～88%; Solidifying agent accounts for 7～15%; Pigment accounts for 1～5%; Filler accounts for 0～20%; Auxiliary agent accounts for 2～6%.
2. insulated wire according to claim 1 and enameled wire electrostatic spraying powder coating is characterized in that: described resin is the modified epoxy of polyfunctionality, the high temperature resistance polyester resin or the modified polyester resin of end carboxyl.
3. insulated wire according to claim 1 and enameled wire electrostatic spraying powder coating is characterized in that: described solidifying agent is modification phenolic hydroxyl group resin, isocyanuric acid three-glycidyl ester or modification hydroxyalkyl amide.
4. insulated wire according to claim 1 and enameled wire electrostatic spraying powder coating is characterized in that: described pigment is high temperature resistant, transformer oil resistant, chemical resistant iron oxide red, titanium dioxide, chrome yellow, permanent yellow, permanent bordeaux or carbon black.
5. insulated wire according to claim 1 and enameled wire electrostatic spraying powder coating is characterized in that: barium sulfate, kaolin, wollastonite powder, silica powder or mica powder that described filler is high temperature resistant, chemical-resistant resistance, electrical insulating property is good.
6. insulated wire according to claim 1 and enameled wire electrostatic spraying powder coating is characterized in that: described auxiliary agent is flow agent, dispersion agent, air release agent, growth agent, corner hiding power properties-correcting agent, toughner, promotor or powder anti-hard caking agent.
7. insulated wire and enameled wire is characterized in that adopting following steps with the preparation technology of electrostatic spraying powder coating:
(1) by the prescription in consumption weigh after, carry out pre-mixing with high-speed mixing equipment;
(2) the pre-mixing material is with melt extruding mixing in single spiral shell thick stick forcing machine or the double-spiral bar forcing machine, and the melt zone temperature is 80～90 ℃, and the mixing section temperature is 105～125 ℃;
(3) through melt extruding the blended material, be cooled to room temperature, and be crushed to sheet material by cooling roller and cooling zone;
(4) sheet material is broken into fines with the air classifying abrasive dust, separates obtaining the powder coating work in-process of size-grade distribution below 160 orders then with the stage equipment that sieves through cyclonic separator;
(5) this work in-process are removed magnetic substance with magnetic plant again and are obtained finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610041282 CN1908096A (en) | 2006-08-02 | 2006-08-02 | Electrostatic spraying powder coating for magnetic wire and enameled wire and preparation technique thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610041282 CN1908096A (en) | 2006-08-02 | 2006-08-02 | Electrostatic spraying powder coating for magnetic wire and enameled wire and preparation technique thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1908096A true CN1908096A (en) | 2007-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610041282 Pending CN1908096A (en) | 2006-08-02 | 2006-08-02 | Electrostatic spraying powder coating for magnetic wire and enameled wire and preparation technique thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1908096A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101875755A (en) * | 2010-03-09 | 2010-11-03 | 江苏兰陵高分子材料有限公司 | Heat-resistant insulating macromolecular composite material preparation method thereof |
| CN101928502A (en) * | 2009-06-19 | 2010-12-29 | 扬州市金晨化工有限公司 | Anti-corrosion epoxy powder coating and preparation method thereof |
| CN102260448A (en) * | 2010-05-30 | 2011-11-30 | 湘潭瑞鑫电气科技有限责任公司 | Surface insulation paint |
| CN102492353A (en) * | 2011-11-28 | 2012-06-13 | 江苏兰陵高分子材料有限公司 | Novel fast-set anticorrosion and wear-resistant epoxy powder coating and preparation process thereof |
| CN104293094A (en) * | 2014-09-17 | 2015-01-21 | 明光市锐创电气有限公司 | Insulating varnish for internal transformer of air conditioner |
| CN104861836A (en) * | 2015-05-19 | 2015-08-26 | 成都纳硕科技有限公司 | Preparation method of powder coating containing wollastonite |
| CN106905823A (en) * | 2017-04-26 | 2017-06-30 | 安徽联硕实业有限公司 | Insulation electrostatic powder coating for electromagnetic wire and preparation method thereof |
| CN106928814A (en) * | 2017-04-26 | 2017-07-07 | 安徽联硕实业有限公司 | A kind of powdery paints for electromagnetic wire and preparation method thereof |
| CN106947370A (en) * | 2017-03-31 | 2017-07-14 | 吴越 | A kind of formula of imitative silicified wood crystal wood grain powder coating product |
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| CN106978057A (en) * | 2017-04-26 | 2017-07-25 | 安徽联硕实业有限公司 | A kind of polyurethane powder coating and preparation method thereof |
| CN107011774A (en) * | 2017-04-10 | 2017-08-04 | 立邦涂料（天津）有限公司 | A kind of high rigidity powder paint compositions and its production and use |
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2006
- 2006-08-02 CN CN 200610041282 patent/CN1908096A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928502A (en) * | 2009-06-19 | 2010-12-29 | 扬州市金晨化工有限公司 | Anti-corrosion epoxy powder coating and preparation method thereof |
| CN101875755A (en) * | 2010-03-09 | 2010-11-03 | 江苏兰陵高分子材料有限公司 | Heat-resistant insulating macromolecular composite material preparation method thereof |
| CN102260448A (en) * | 2010-05-30 | 2011-11-30 | 湘潭瑞鑫电气科技有限责任公司 | Surface insulation paint |
| CN102492353A (en) * | 2011-11-28 | 2012-06-13 | 江苏兰陵高分子材料有限公司 | Novel fast-set anticorrosion and wear-resistant epoxy powder coating and preparation process thereof |
| CN104293094A (en) * | 2014-09-17 | 2015-01-21 | 明光市锐创电气有限公司 | Insulating varnish for internal transformer of air conditioner |
| CN104861836A (en) * | 2015-05-19 | 2015-08-26 | 成都纳硕科技有限公司 | Preparation method of powder coating containing wollastonite |
| CN106947370A (en) * | 2017-03-31 | 2017-07-14 | 吴越 | A kind of formula of imitative silicified wood crystal wood grain powder coating product |
| CN107011774A (en) * | 2017-04-10 | 2017-08-04 | 立邦涂料（天津）有限公司 | A kind of high rigidity powder paint compositions and its production and use |
| CN106905823A (en) * | 2017-04-26 | 2017-06-30 | 安徽联硕实业有限公司 | Insulation electrostatic powder coating for electromagnetic wire and preparation method thereof |
| CN106947364A (en) * | 2017-04-26 | 2017-07-14 | 安徽联硕实业有限公司 | A kind of epoxide powder coating and preparation method thereof |
| CN106978057A (en) * | 2017-04-26 | 2017-07-25 | 安徽联硕实业有限公司 | A kind of polyurethane powder coating and preparation method thereof |
| CN106928814A (en) * | 2017-04-26 | 2017-07-07 | 安徽联硕实业有限公司 | A kind of powdery paints for electromagnetic wire and preparation method thereof |
| CN107022285A (en) * | 2017-04-26 | 2017-08-08 | 安徽联硕实业有限公司 | It is a kind of for polyester powder coating of electromagnetic wire and preparation method thereof |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Lanling Polymer Material Co., Ltd. Assignor: Jiangsu Lanling Chemical Group Co., Ltd. Contract fulfillment period: 2006.8.5 to 2021.8.4 contract change Contract record no.: 2008320000834 Denomination of invention: Electrostatic spraying powder coating for magnetic wire and enameled wire and preparation technique thereof License type: Exclusive license Record date: 20081012 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2006.8.5 TO 2021.8.4; CHANGE OF CONTRACT Name of requester: JIANGSU LANLING MACROMOLECULE MATERIALS CO., LTD. Effective date: 20081012 |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20070207 |