CN104293172A - Insulating varnish for transformer - Google Patents
Insulating varnish for transformer Download PDFInfo
- Publication number
- CN104293172A CN104293172A CN201410476444.2A CN201410476444A CN104293172A CN 104293172 A CN104293172 A CN 104293172A CN 201410476444 A CN201410476444 A CN 201410476444A CN 104293172 A CN104293172 A CN 104293172A
- Authority
- CN
- China
- Prior art keywords
- transformer
- glycerine
- clay
- insulating varnish
- modified poly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- C09D179/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09D161/00 - C09D177/00
- C09D179/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C09D179/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
-
- 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
- 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
- C09D7/63—Additives non-macromolecular organic
-
- 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
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to the technical field of transformers for air conditioners and discloses insulating varnish for a transformer. The insulating varnish for the transformer is prepared from the following raw materials in percent by weight: 45-55% of polyester imide resin, 8-15% of modified polyester imide, 10-15% of clay, 5-8% of curing agent, 10-15% of diluent and 5-10% of glycerine. The insulating varnish for the transformer has the advantages that polyester imide resin and modified polyester imide are mixed for preparing the insulating varnish, and proper amounts of clay and glycerine are added, so that the insulating varnish for the transformer has good permeability, strong ageing resistance, good insulativity, strong adhesive force, high mechanical strength and no toxin and can be dried in a short time; meanwhile, a preparation technology is simple, and requirements on equipment are low.
Description
Technical field
The present invention relates to air-conditioning transformer technology field, refer more particularly to a kind of transformer insulated paint.
Background technology
Transformer utilizes the principle of electromagnetic induction to change the device of voltage of alternating current, and primary member is primary winding, secondary coil and iron core.Major function has: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilizing etc.Can be divided into by purposes: substation transformer, power transformer, full-sealed transformer, combined transformer, dry type transformer, oil-filled transformer, single phase transformer, furnace transformer, rectifier transformer etc.
Idle call supply transformer, primarily of armature winding and secondary winding composition, disposable fusing type safety fuse of connecting in armature winding.When input voltage or electric current overload, or secondary to be short-circuited etc. abnormal failure time, safety fuse can quick fuse, feed circuit of cutting off the electricity supply, protection main power circuit safety.Idle call power supply transformer production technique generally comprises following steps: coiling, reason line, scolding tin, assembling, outward appearance initial survey, electric performance test, dipping lacquer, beat withstand voltage, circle part is withstand voltage, secondary scolding tin, electrical property repetition measurement, cut pin, outward appearance detection etc., supply transformer impregnated insulating paint is a step very crucial in transformer production process.Transformer impregnated insulating paint can improve dielectric strength and the insulation resistance of transformer insulating system, to improve its electrical insulation properties, meets the electrical insulation properties requirement of transformer; Impregnated insulating paint can strengthen the performance of the moistureproofness of transformer insulating system, mildew resistance, non-corrosibility, Defend salt fog, antiultraviolet and other objectionable impuritiess invasion and attack; Impregnated insulating paint can increase transformer physical strength, meets the requirement of vibration and the shock action produced in transport and use procedure; Impregnated insulating paint, the space of iron core and winding is filled by paint film, can improve the thermal conductivity of transformer whole, reduces the temperature rise of transformer.The chemical composition of the insullac of current use is generally high molecular polymer, and common comprises Polyester Paint, polyurethane paint, polyester-imide paint, polyimide varnish etc.The disadvantage of these products is non-refractories, and transformer is in operational process, and coil can generate heat due to loss, and the time has been grown and can produce high temperature.When temperature is higher, the molecular chain of high molecular polymer can rupture, decompose, namely insullac occurs aging, serious meeting is broken, lose insulating effect, make coated copper alloy wire out exposed, thus short circuit between casket, phase fault, shorted to earth etc. can be caused, cause industrial accident even personnel safety accident.
Summary of the invention
The object of the present invention is to provide a kind of transformer insulated paint, ageing resistance is strong, and good insulating, strong adhesion, physical strength is high, nontoxic, and time of drying is short.
For achieving the above object, the present invention is by the following technical solutions:
A kind of transformer insulated paint, comprises the raw material of following weight percent: polyester imine resin 45-55%, modified poly ester imide 8-15%, clay 10-15%, solidifying agent 5-8%, thinner 10-15%, glycerine 5-10%.
Preferably, the raw material of following weight percent drawn together by described transformer insulated enamel-cover: polyester imine resin 48-52%, modified poly ester imide 10-12%, clay 12-14%, solidifying agent 6-7%, thinner 12-14%, glycerine 6-8%.
Preferably, the raw material of following weight percent drawn together by described transformer insulated enamel-cover: polyester imine resin 52%, modified poly ester imide 9%, clay 13%, solidifying agent 6%, thinner 13%, glycerine 7%.
Preferably, described thinner is dimethylbenzene or aromatic solvent.
Preferred, described transformer insulated paint, its preparation method comprises the following steps:
(1) described polyester imine resin is taken by described weight percent, modified poly ester imide, clay, solidifying agent, thinner, glycerine;
(2) various raw material is put into container mix and stir, material composition is mixed, is heated to 30-40 DEG C, be incubated after 20-30 minutes, naturally cooling.
The present invention compared with prior art, has the following advantages:
The present invention adopts polyester imine resin, modified poly ester imide mixed preparing insullac, and adds appropriate clay and glycerine, good penetrability, and ageing resistance is strong, good insulating, strong adhesion, and physical strength is high, nontoxic, and time of drying is short; Preparation technology is simple, lower to the requirement of equipment.
Embodiment
Below in conjunction with embodiment, technical scheme of the present invention is further described in detail.
Embodiment one:
A kind of transformer insulated paint, comprises the raw material of following weight percent: polyester imine resin 50%, modified poly ester imide 15%, clay 15%, solidifying agent 5%, dimethylbenzene 10%, glycerine 5%.
Described transformer insulated paint, its preparation method comprises the following steps:
(1) polyester imine resin is taken by weight percentage, modified poly ester imide, clay, solidifying agent, dimethylbenzene, glycerine;
(2) various raw material is put into container mix and stir, material composition is mixed, be heated to 40 DEG C, be incubated after 30 minutes, naturally cooling.
Embodiment two:
A kind of transformer insulated paint, comprises the raw material of following weight percent: polyester imine resin 48%, modified poly ester imide 8%, clay 10%, solidifying agent 8%, aromatic solvent 15%, glycerine 10%.
Described transformer insulated paint, its preparation method comprises the following steps:
(1) polyester imine resin is taken by weight percentage, modified poly ester imide, clay, solidifying agent, aromatic solvent, glycerine;
(2) various raw material is put into container mix and stir, material composition is mixed, is heated to 30-40 DEG C, be incubated after 20-30 minutes, naturally cooling.
Embodiment three:
A kind of transformer insulated paint, comprises the raw material of following weight percent: polyester imine resin 49%, modified poly ester imide 12%, clay 14%, solidifying agent 7%, dimethylbenzene 12%, glycerine 6%.
Described transformer insulated paint, its preparation method comprises the following steps:
(1) polyester imine resin is taken by weight percentage, modified poly ester imide, clay, solidifying agent, dimethylbenzene, glycerine;
(2) various raw material is put into container mix and stir, material composition is mixed, be heated to 35 DEG C, be incubated after 25 minutes, naturally cooling.
Embodiment four:
A kind of transformer insulated paint, comprises the raw material of following weight percent: polyester imine resin 52%, modified poly ester imide 10%, clay 12%, solidifying agent 6%, aromatic solvent 14%, glycerine 6%.
Described transformer insulated paint, its preparation method comprises the following steps:
(1) polyester imine resin is taken by weight percentage, modified poly ester imide, clay, solidifying agent, aromatic solvent, glycerine;
(2) various raw material is put into container mix and stir, material composition is mixed, be heated to 34 DEG C, be incubated after 23 minutes, naturally cooling.
Embodiment five:
A kind of transformer insulated paint, comprises the raw material of following weight percent: polyester imine resin 52%, modified poly ester imide 9%, clay 13%, solidifying agent 6%, dimethylbenzene 13%, glycerine 7%.
Described transformer insulated paint, its preparation method comprises the following steps:
(1) polyester imine resin is taken by weight percentage, modified poly ester imide, clay, solidifying agent, dimethylbenzene, glycerine;
(2) various raw material is put into container mix and stir, material composition is mixed, be heated to 38 DEG C, be incubated after 28 minutes, naturally cooling.
The present invention adopts polyester imine resin, modified poly ester imide mixed preparing insullac, and adds appropriate clay and glycerine, good penetrability, and ageing resistance is strong, good insulating, strong adhesion, and physical strength is high, nontoxic, and time of drying is short; Preparation technology is simple, lower to the requirement of equipment.
Following table further illustrates fundamental property of the present invention:
It should be noted last that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (5)
1. a transformer insulated paint, is characterized in that, comprises the raw material of following weight percent: polyester imine resin 45-55%, modified poly ester imide 8-15%, clay 10-15%, solidifying agent 5-8%, thinner 10-15%, glycerine 5-10%.
2. transformer insulated paint according to claim 1, is characterized in that, comprises the raw material of following weight percent: polyester imine resin 48-52%, modified poly ester imide 10-12%, clay 12-14%, solidifying agent 6-7%, thinner 12-14%, glycerine 6-8%.
3. transformer insulated paint according to claim 1, is characterized in that, comprises the raw material of following weight percent: polyester imine resin 52%, modified poly ester imide 9%, clay 13%, solidifying agent 6%, thinner 13%, glycerine 7%.
4. transformer insulated paint according to claim 1, is characterized in that, described thinner is dimethylbenzene or aromatic solvent.
5. transformer insulated paint according to claim 1, it is characterized in that, its preparation method comprises the following steps:
(1) described polyester imine resin is taken by described weight percent, modified poly ester imide, clay, solidifying agent, thinner, glycerine;
(2) various raw material is put into container mix and stir, material composition is mixed, is heated to 30-40 DEG C, be incubated after 20-30 minutes, naturally cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410476444.2A CN104293172A (en) | 2014-09-17 | 2014-09-17 | Insulating varnish for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410476444.2A CN104293172A (en) | 2014-09-17 | 2014-09-17 | Insulating varnish for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104293172A true CN104293172A (en) | 2015-01-21 |
Family
ID=52313136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410476444.2A Pending CN104293172A (en) | 2014-09-17 | 2014-09-17 | Insulating varnish for transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104293172A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5854334A (en) * | 1995-03-07 | 1998-12-29 | Basf Lacke & Farben, Ac | Wire coating composition and process for producing the same |
| CN101010389A (en) * | 2004-08-30 | 2007-08-01 | 尼克桑斯公司 | Enamelling varnish composition, such as for a magnet wire |
| CN101613572A (en) * | 2009-07-22 | 2009-12-30 | 常州市智通树脂有限公司 | A kind of polyesterimide wire enamel and preparation method thereof |
| US20100081744A1 (en) * | 2007-04-16 | 2010-04-01 | Ezio Cancilleri | Nano-modified wire enamels and enamelled wires thereof |
| CN102079945A (en) * | 2009-11-26 | 2011-06-01 | 福保化学股份有限公司 | Surge-withstanding insulating paint with flexibility and attrition resistance |
-
2014
- 2014-09-17 CN CN201410476444.2A patent/CN104293172A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5854334A (en) * | 1995-03-07 | 1998-12-29 | Basf Lacke & Farben, Ac | Wire coating composition and process for producing the same |
| CN101010389A (en) * | 2004-08-30 | 2007-08-01 | 尼克桑斯公司 | Enamelling varnish composition, such as for a magnet wire |
| US20100081744A1 (en) * | 2007-04-16 | 2010-04-01 | Ezio Cancilleri | Nano-modified wire enamels and enamelled wires thereof |
| CN101613572A (en) * | 2009-07-22 | 2009-12-30 | 常州市智通树脂有限公司 | A kind of polyesterimide wire enamel and preparation method thereof |
| CN102079945A (en) * | 2009-11-26 | 2011-06-01 | 福保化学股份有限公司 | Surge-withstanding insulating paint with flexibility and attrition resistance |
Non-Patent Citations (2)
| Title |
|---|
| 何恩广等: "聚酯亚胺体系浸渍树脂的性能研究", 《绝缘材料》 * |
| 傅承碧等: "《化工工艺学》", 31 January 2014, 中国石化出版社 * |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150121 |