CN104449339A - Polyester enameled wire varnish capable of being directly welded, and preparation method thereof - Google Patents
Polyester enameled wire varnish capable of being directly welded, and preparation method thereof Download PDFInfo
- Publication number
- CN104449339A CN104449339A CN201310421830.7A CN201310421830A CN104449339A CN 104449339 A CN104449339 A CN 104449339A CN 201310421830 A CN201310421830 A CN 201310421830A CN 104449339 A CN104449339 A CN 104449339A
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- CN
- China
- Prior art keywords
- preparation
- directly
- weld
- wire enamel
- phthalic acid
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Classifications
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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
- C09D177/00—Coating compositions based on polyamides obtained by reactions forming a carboxylic amide link in the main chain; Coating compositions based on derivatives of such polymers
- C09D177/12—Polyester-amides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/44—Polyester-amides
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
-
- 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
Abstract
The present invention relates to a preparation method for a polyester enameled wire varnish capable of being directly welded. The preparation method comprises: (1) preparing a weldable polyester resin, wherein isophthalic acid, ethylene glycol and 4,4'-diamino diphenyl ether are adopted to synthesize the resin, isophthalic acid, ethylene glycol and 4,4'-diamino diphenyl ether are sequentially poured into a reaction device, gradual heating is performed from a room temperature to a temperature of 180-200 DEG C under a stirring condition, a thermal insulation reaction is performed until achieving a transparent state, and vacuum pumping is performed to achieve the theoretical liquid discharge amount; and (2) taking the polyester resin and cresol, stirring for 1-2 h at a temperature of 180-200 DEG C, cooling to a room temperature, adding xylene, and stirring for 1-2 h to obtain the polyester enameled wire varnish capable of being directly welded. According to the present invention, the polyester enameled wire varnish capable of being directly welded can be directly welded at a temperature of 450 DEG C, no welding slag exists after the direct welding, the thermal shock temperature is more than or equal to 175 DEG C, and the cut-through temperature is more than or equal to 270 DEG C.
Description
Technical field
The present invention relates to the preparation field of wire enamel, be specially one and directly can weld polyester wire enamel and preparation method thereof.
Background technology
Wire enamel is the indispensable electrical insulating coating being applied to electrical equipment, is one of critical materials controlling electric installation economic and technical norms and operation life.The insulation layer (i.e. enameled wire coat) that enameled wire is coated with, should have good heat, electricity, machinery and chemical resistance.
The enameled wire that conventional polyester wire enamel coats needs membrane removal in advance just can weld, and greatly reduces production efficiency like this.In order to simplify production technique, raise the efficiency, needing to make polyester wire enamel to possess can directly weldering property.
Summary of the invention
Technical problem to be solved by this invention for provide a kind of 450 DEG C directly weldering without the preparation method of the polyester wire enamel of residue and prepare by the method directly can weld polyester wire enamel.
For solving the problems of the technologies described above, the invention provides a kind of preparation method that directly can weld polyester wire enamel, its step is as follows:
(1) preparation method of weldability vibrin: adopt m-phthalic acid, ethylene glycol, 4,4'-diaminodiphenyl oxide synthetic resins, wherein, the mol ratio of m-phthalic acid and ethylene glycol is 1:1 ~ 1:2, the mol ratio of m-phthalic acid and 4,4'-diaminodiphenyl oxide is 3:1 ~ 3:2;
Concrete preparation process: drop into m-phthalic acid, ethylene glycol, 4,4'-diaminodiphenyl oxides in reaction unit successively, is progressively warmed up to 180 ~ 200 DEG C when stirring from room temperature, and insulation reaction is to transparent, is evacuated down to theoretical liquid outlet quantity;
(2) get above-mentioned vibrin, cresols, stir 1 ~ 2 hour, be cooled to room temperature at 180 ~ 200 DEG C, add dimethylbenzene stirring and within 1 ~ 2 hour, namely obtain and directly can weld polyester wire enamel, wherein the mol ratio of vibrin, cresols, dimethylbenzene is 4:3:3.
Above-mentioned m-phthalic acid can be replaced with terephthalic acid or trimellitic acid 1,2-anhydride, and consumption is consistent.
One directly can weld polyester wire enamel, and it adopts above-mentioned preparation method to obtain.
Technique effect of the present invention: (1) the present invention is made by introducing portion amide group in the polyester, draw by experiment containing the paint film compared with multiamide and imine group at high temperature possess to a certain degree can directly weldering property (see table 1), the enameled wire that this wire enamel coats directly can weld at 450 DEG C, and straight postwelding is without welding slag; (2) because 4,4'-diaminodiphenyl oxide possesses two phenyl ring, structure adds the rigidity of fluoropolymer resin, therefore the enameled wire resistance toheat that coats of this wire enamel is good, thermal shocking more than 175 DEG C, cut through temperature more than 270 DEG C; (3) this preparation method enormously simplify complete processing, improves production efficiency.
Embodiment
Embodiment 1
The preparation method that directly can weld polyester wire enamel of the present embodiment, its step is as follows:
The preparation of weldability vibrin: get m-phthalic acid 1 part, ethylene glycol 1 part, 4,4'-diaminodiphenyl oxide 0.33 part, m-phthalic acid, ethylene glycol, 4 is dropped into successively in reaction unit, 4'-diaminodiphenyl oxide, 200 DEG C are progressively warmed up to from room temperature when stirring, 200 DEG C of insulation reaction to transparent, be evacuated down to theoretical liquid outlet quantity.
Get 40 parts, above-mentioned vibrin, 30 parts, cresols, stir 1 hour at 180 DEG C, be cooled to room temperature, add 30 parts of dimethylbenzene and stir namely to obtain for 1 hour and obtained directly can weld polyester wire enamel.
Embodiment 2
The preparation method that directly can weld polyester wire enamel of the present embodiment, its step is as follows:
The preparation of weldability vibrin: get m-phthalic acid 1 part, ethylene glycol 1 part, 4,4'-diaminodiphenyl oxide 0.67 part, m-phthalic acid, ethylene glycol, 4 is dropped into successively in reaction unit, 4'-diaminodiphenyl oxide, 200 DEG C are progressively warmed up to from room temperature when stirring, 200 DEG C of insulation reaction to transparent, be evacuated down to theoretical liquid outlet quantity.
Get 40 parts, above-mentioned vibrin, 30 parts, cresols, stir 1 hour at 180 DEG C, be cooled to room temperature, add 30 parts of dimethylbenzene and stir namely to obtain for 1 hour and obtained directly can weld polyester wire enamel.
Comparative example: with conventional polyester wire enamel (as four STE30L reaching Chemical Co., Ltd.).
Comparative example and embodiment performance test as shown in table 1.
Table 1
| Comparative example | Embodiment 1 | Embodiment 2 | |
| Round copper wire diameter/mm | 0.300 | 0.300 | 0.300 |
| Enameled wire external diameter/mm | 0.341 | 3.340 | 0.341 |
| Straight weldering: 440 DEG C, 3 seconds | NG | NG | OK |
| Straight weldering: 450 DEG C, 3 seconds | NG | OK | OK |
| Straight weldering: 460 DEG C, 3 seconds | NG | OK | OK |
| Cut through temperature/DEG C | 270 | 270 | 270 |
| Thermal shock resistance properties (d/ DEG C) | 1/155 | 1/180 | 1/175 |
Claims (5)
1. directly can weld a preparation method for polyester wire enamel, it is characterized in that step is as follows:
(1) preparation method of weldability vibrin: adopt m-phthalic acid, ethylene glycol, 4,4'-diaminodiphenyl oxide synthetic resins, m-phthalic acid, ethylene glycol, 4 is dropped into successively in reaction unit, 4'-diaminodiphenyl oxide, 180 ~ 200 DEG C are progressively warmed up to from room temperature when stirring, and insulation reaction is to transparent, is evacuated down to theoretical liquid outlet quantity;
(2) get above-mentioned vibrin, cresols, stir 1 ~ 2 hour at 180 ~ 200 DEG C, be cooled to room temperature, add dimethylbenzene stirring and within 1 ~ 2 hour, namely obtain and directly can weld polyester wire enamel.
2. directly can weld the preparation method of polyester wire enamel as claimed in claim 1, it is characterized in that: in step (1), the mol ratio of m-phthalic acid and ethylene glycol is 1:1 ~ 1:2, and the mol ratio of m-phthalic acid and 4,4'-diaminodiphenyl oxide is 3:1 ~ 3:2,
Directly can weld the preparation method of polyester wire enamel as claimed in claim 2, it is characterized in that: in step (2), the mol ratio of vibrin, cresols, dimethylbenzene is 4:3:3.
3. directly can weld the preparation method of polyester wire enamel as claimed in claim 3, it is characterized in that: described m-phthalic acid can be replaced with terephthalic acid or trimellitic acid 1,2-anhydride, and consumption is consistent.
4. what prepared by the preparation method that directly can weld polyester wire enamel as claimed in claim 1 directly can weld polyester wire enamel, it is characterized in that: in the preparation of weldability vibrin, the mol ratio of described m-phthalic acid and ethylene glycol is 1:1 ~ 1:2, the mol ratio of m-phthalic acid and 4,4'-diaminodiphenyl oxide is 3:1 ~ 3:2;
The mol ratio of described vibrin, cresols, dimethylbenzene is 4:3:3.
5. directly can weld polyester wire enamel as claimed in claim 5, it is characterized in that: described m-phthalic acid can be replaced with terephthalic acid or trimellitic acid 1,2-anhydride, and consumption is consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310421830.7A CN104449339A (en) | 2013-09-16 | 2013-09-16 | Polyester enameled wire varnish capable of being directly welded, and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310421830.7A CN104449339A (en) | 2013-09-16 | 2013-09-16 | Polyester enameled wire varnish capable of being directly welded, and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104449339A true CN104449339A (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310421830.7A Pending CN104449339A (en) | 2013-09-16 | 2013-09-16 | Polyester enameled wire varnish capable of being directly welded, and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104449339A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101514276A (en) * | 2008-12-30 | 2009-08-26 | 上海新天和树脂有限公司 | Method for preparing solventless unsaturated polyester-imide wire coating enamel |
-
2013
- 2013-09-16 CN CN201310421830.7A patent/CN104449339A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101514276A (en) * | 2008-12-30 | 2009-08-26 | 上海新天和树脂有限公司 | Method for preparing solventless unsaturated polyester-imide wire coating enamel |
Non-Patent Citations (1)
| Title |
|---|
| 王玲等: ""可焊性聚酯亚胺漆包线"", 《电线电缆》 * |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |
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| RJ01 | Rejection of invention patent application after publication |