CN104449338A - Preparation method of polyester enamelled wire paint with good heat resistance capable of being directly welded - Google Patents
Preparation method of polyester enamelled wire paint with good heat resistance capable of being directly welded Download PDFInfo
- Publication number
- CN104449338A CN104449338A CN201310421126.1A CN201310421126A CN104449338A CN 104449338 A CN104449338 A CN 104449338A CN 201310421126 A CN201310421126 A CN 201310421126A CN 104449338 A CN104449338 A CN 104449338A
- Authority
- CN
- China
- Prior art keywords
- preparation
- phthalic acid
- heat resistance
- good heat
- enamelled wire
- 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.)
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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
- 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
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Abstract
The invention relates to a preparation method of a polyester enamelled wire paint with good heat resistance capable of being directly welded, which comprises the following steps: 1)preparation method of weldability resin: employing m-phthalic acid, glycol and 4,4'-diaminodiphenyl ether for resin synthesis, placing m-phthalic acid, glycol and 4,4'-diaminodiphenyl ether in a reaction apparatus in order, gradually heating to 200 DEG C while stirring from room temperature, insulating and reacting until color is transparent, pumping under vacuum to a theoretical liquid volume; and 2)taking polyester resin and methylphenol, stirring for one hour at 180 DEG C, cooling to room temperature, adding xylene and stirring for one hour to obtain the polyester enamelled wire paint with good heat resistance capable of being directly welded. The enamelled wire coated by the polyester enamelled wire paint is capable of being directly welded at 450 DEG C, no welding slag is generated after direct welding, thermal shock temperature is more than 175 DEG C, and cut-through temperature is more than 270 DEG C.
Description
Technical field
The present invention relates to the preparation field of wire enamel, be specially a kind of preparation method that directly can weld polyester wire enamel of good heat resistance.
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 good heat resistance the preparation method that directly can weld polyester wire enamel, what the method was prepared can directly weld, and polyester wire enamel can 450 DEG C of directly welderings.
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, 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 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 hour, be cooled to room temperature at 180 DEG C, add dimethylbenzene and stir and within 1 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.
Good heat resistance directly can weld a polyester wire enamel, its adopt above-mentioned preparation method 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 good heat resistance 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 good heat resistance 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.
| 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 (2)
1. the preparation method that directly can weld polyester wire enamel of good heat resistance, 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, dropping into m-phthalic acid, ethylene glycol, 4,4'-diaminodiphenyl oxides in reaction unit successively, being progressively warmed up to 200 DEG C when stirring from room temperature, and insulation reaction is to transparent, be evacuated down to theoretical liquid outlet quantity, wherein, the mol ratio of m-phthalic acid and ethylene glycol is 1:1, the mol ratio of m-phthalic acid and 4,4'-diaminodiphenyl oxide is 3:1 ~ 3:2;
(2) get above-mentioned vibrin, cresols, stir 1 hour, be cooled to room temperature at 180 DEG C, add dimethylbenzene and stir and within 1 hour, namely obtain and directly can weld polyester wire enamel, wherein the mol ratio of vibrin, cresols, dimethylbenzene is 4:3:3.
2. the preparation method that directly can weld polyester wire enamel of good heat resistance as claimed in claim 1, 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 |
|---|---|---|---|
| CN201310421126.1A CN104449338A (en) | 2013-09-16 | 2013-09-16 | Preparation method of polyester enamelled wire paint with good heat resistance capable of being directly welded |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310421126.1A CN104449338A (en) | 2013-09-16 | 2013-09-16 | Preparation method of polyester enamelled wire paint with good heat resistance capable of being directly welded |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104449338A true CN104449338A (en) | 2015-03-25 |
Family
ID=52896114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310421126.1A Pending CN104449338A (en) | 2013-09-16 | 2013-09-16 | Preparation method of polyester enamelled wire paint with good heat resistance capable of being directly welded |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104449338A (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 CN201310421126.1A patent/CN104449338A/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 |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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: 20150325 |