CN103871542A - Insulator in extremely-thin coaxial cable - Google Patents
Insulator in extremely-thin coaxial cable Download PDFInfo
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- CN103871542A CN103871542A CN201410090190.0A CN201410090190A CN103871542A CN 103871542 A CN103871542 A CN 103871542A CN 201410090190 A CN201410090190 A CN 201410090190A CN 103871542 A CN103871542 A CN 103871542A
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Abstract
The invention discloses an insulator in an extremely-thin coaxial cable. The insulator comprises the main components in percentage of 60%-70% of PTFE (Polytetrafluoroethylene), 15%-25% of glass fiber, 6%-10% of graphite powder, and the balance of related additives. According to the insulator in the extremely-thin coaxial cable, disclosed by the invention, the material selecting of the insulator is appropriate, the preparation technology is simple and convenient, the cost is moderate, a good comprehensive mechanical performance is expressed during a using process, and thus the extremely-thin coaxial cable is longer in service life, more stable in performance and wider in application range.
Description
Technical field
The present invention relates to insulator in a kind of Ultrathin coaxial cable, relate in particular to that a kind of comprehensive mechanical property is good, insulator in the exsertile Ultrathin coaxial cable of insulating properties, belong to Ultrathin coaxial cable technical field.
Background technology
In recent years, along with the continuous quickening of mobile phone, the notebook computer consumer electronics product that is representative and communication, medical treatment, the microminiaturized development trend of military electronic product, performance requirement improves constantly, and the traditional wiring such as flat cable, the flexible PCB element that transmits various frequency signals in these products is transmitted rapidly the Ultrathin coaxial cable that speed is higher, frequency band is wider and anti-electromagnetic interference is strong and replaces.Particularly middle nineteen nineties in last century mobile communication universal, promoted especially research and development and the large-scale production of Ultrathin coaxial cable.
In existing technology, the insulator in Ultrathin coaxial cable adopts fluoroplastics mostly, as meltability perfluoroalkyl alkoxy copolymer (PFA), perfluoroethylene-propylene (FEP) etc.Above-mentioned insulator is owing to adopting single material, therefore aspect some mechanical properties, there is defect, for example: compressive property, anti-wear performance and tensile strength etc., limit to a certain extent the range of application of Ultrathin coaxial cable, made it can not be applicable to some accurate electronic products to environment sensitive.
Summary of the invention
For the demand, the invention provides insulator in a kind of Ultrathin coaxial cable, this insulator material apolegamy is proper, in use shows good comprehensive mechanical property, has promoted the range of application of Ultrathin coaxial cable.
The present invention is insulator in a kind of Ultrathin coaxial cable, and the main component of this insulator and percentage composition proportioning thereof are: polytetrafluoroethylene 60%-70%, glass fibre 15%-25%, graphite powder 6%-10%, all the other are relevant auxiliary agent.
In a preferred embodiment of the present invention, the main component of described insulator and percentage composition proportioning thereof are: polytetrafluoroethylene 60%-65%, glass fibre 18%-22%, graphite powder 6%-8%, all the other are relevant auxiliary agent.
In a preferred embodiment of the present invention, described polytetrafluoroethylene is micro-powdered granule, and its average grain diameter is about 0.3-0.35um.
In a preferred embodiment of the present invention, described glass fibre is the short alkali-free glass fibre of cutting, and its filament diameter is about 10-12um, and length is about 4-4.5mm.
In a preferred embodiment of the present invention, the average grain diameter of described graphite powder is about 15-18um.
In a preferred embodiment of the present invention, described auxiliary agent comprises plasticizer, compatilizer, crosslinking agent, viscosity modifier etc.
The present invention has disclosed insulator in a kind of Ultrathin coaxial cable, and this insulator selection is proper, and preparation technology is easy, cost is moderate, in use shows good comprehensive mechanical property, makes the useful life of Ultrathin coaxial cable more lasting, performance is more stable, and range of application is more broad.
Embodiment
Below preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
Insulator in the Ultrathin coaxial cable of mentioning in the present invention, the main component of its insulator and percentage composition proportioning thereof are: polytetrafluoroethylene 60%-70%, glass fibre 15%-25%, graphite powder 6%-10%, all the other are relevant auxiliary agent.
Further illustrate, the main component of this insulator and percentage composition proportioning thereof are: polytetrafluoroethylene 60%-65%, glass fibre 18%-22%, graphite powder 6%-8%, and all the other are relevant auxiliary agent; Polytetrafluoroethylene is micro-powdered granule, and its average grain diameter is about 0.3-0.35um; Glass fibre is the short alkali-free glass fibre of cutting, and its filament diameter is about 10-12um, and length is about 4-4.5mm; The average grain diameter of graphite powder is about 15-18um; Auxiliary agent comprises plasticizer, compatilizer, crosslinking agent, viscosity modifier etc.
In the Ultrathin coaxial cable that the present invention mentions, the concrete preparation process of insulator is as follows:
A) raw material selects standbyly, and the main component of insulator and percentage composition proportioning thereof are: polytetrafluoroethylene 65%, glass fibre 18%, graphite powder 8%, and all the other are relevant auxiliary agent; Polytetrafluoroethylene is micro-powdered granule, and its average grain diameter is about 0.3um; Glass fibre is the short alkali-free glass fibre of cutting, and its filament diameter is about 10um, and length is about 4mm; The average grain diameter of graphite powder is about 16um; Plasticizer in auxiliary agent selects DOP, compatilizer to select cyclic acid anhydride type compatilizer, crosslinking agent to select 2-ethyl-4 methylimidazole, viscosity modifier to select paraffin, and the content proportioning of four kinds of auxiliary agents is about 4:2:1:3;
B) preparation pasty state insulator, pasty state insulator preparation process is as follows: first, raw material is added to reactor, uniform stirring 30-35 minute, temperature of reaction kettle is controlled at 65 ℃-70 ℃; Then, in reactor, add plasticizer and the compatilizer in auxiliary agent, temperature of reaction kettle rises to 100 ℃-110 ℃, uniform stirring 1.2 hours; Finally, temperature of reaction kettle is down to 80 ℃-85 ℃, continues to add crosslinking agent and the viscosity modifier in auxiliary agent, stir and make pasty state insulator after 50-55 minute;
C) extrude coatedly, extrude coated process as follows: first, pasty state insulator is imported to extruder, extruder temperature is controlled at 70 ℃-75 ℃; Then, pasty state insulator is evenly extruded, be coated on conductor outer surface and form coating layer, the extruded velocity of extruder is controlled at 0.3m/min, and coating thickness is controlled at 0.09-0.1mm; Finally, Overmolded insulator is placed in to room temperature cooling;
D) thermosetting sintering, thermosetting sintering process is as follows: first, Overmolded insulator is dried to processing, baking temperature is controlled at 130 ℃-135 ℃, time is controlled at 32-34 minute, and object is the unnecessary auxiliary agent of removing in insulator, the generation of toxic gas when avoiding sintering; Then, carry out sintering processes, sintering furnace temperature is divided into two stages: the temperature of first stage is promoted to 180 ℃ from 0 ℃, and programming rate is controlled at 6 ℃/min, and sintering time is about 28-30 minute; The temperature of second stage is promoted to 360 ℃ from 180 ℃, and programming rate is controlled at 4 ℃/min, and sintering time is about 38-40 minute; Finally, by sintering finished in sintering furnace slow cooling to room temperature.
The present invention has disclosed insulator in a kind of Ultrathin coaxial cable, and this insulator selection is proper, and preparation technology is easy, cost is moderate, in use shows good comprehensive mechanical property, makes the useful life of Ultrathin coaxial cable more lasting, performance is more stable, and range of application is more broad.
The above; it is only the specific embodiment of the present invention; but protection scope of the present invention is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the present invention; the variation that can expect without creative work or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range that claims were limited.
Claims (6)
1. an insulator in Ultrathin coaxial cable, is characterized in that, the main component of this insulator and percentage composition proportioning thereof are: polytetrafluoroethylene 60%-70%, glass fibre 15%-25%, graphite powder 6%-10%, all the other are relevant auxiliary agent.
2. insulator in Ultrathin coaxial cable according to claim 1, is characterized in that, the main component of described insulator and percentage composition proportioning thereof are: polytetrafluoroethylene 60%-65%, glass fibre 18%-22%, graphite powder 6%-8%, all the other are relevant auxiliary agent.
3. insulator in Ultrathin coaxial cable according to claim 1, is characterized in that, described polytetrafluoroethylene is micro-powdered granule, and its average grain diameter is about 0.3-0.35um.
4. insulator in Ultrathin coaxial cable according to claim 1, is characterized in that, described glass fibre is the short alkali-free glass fibre of cutting, and its filament diameter is about 10-12um, and length is about 4-4.5mm.
5. insulator in Ultrathin coaxial cable according to claim 1, is characterized in that, the average grain diameter of described graphite powder is about 15-18um.
6. insulator in Ultrathin coaxial cable according to claim 1, is characterized in that, described auxiliary agent comprises plasticizer, compatilizer, crosslinking agent, viscosity modifier etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410090190.0A CN103871542A (en) | 2014-03-13 | 2014-03-13 | Insulator in extremely-thin coaxial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410090190.0A CN103871542A (en) | 2014-03-13 | 2014-03-13 | Insulator in extremely-thin coaxial cable |
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| Publication Number | Publication Date |
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| CN103871542A true CN103871542A (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410090190.0A Pending CN103871542A (en) | 2014-03-13 | 2014-03-13 | Insulator in extremely-thin coaxial cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109867889A (en) * | 2017-12-04 | 2019-06-11 | 天津市川浩塑料制品有限公司 | Insulating material in a kind of Ultrathin coaxial cable |
| CN117524563A (en) * | 2024-01-04 | 2024-02-06 | 深圳琦富瑞电子有限公司 | Fiber reinforced fluoroplastic wire and cable and manufacturing method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2691694A (en) * | 1949-04-09 | 1954-10-12 | Du Pont | Polytetrafluoroethylene-glass fiber insulated electrical conductors |
| CN1842574A (en) * | 2003-08-25 | 2006-10-04 | 大金工业株式会社 | Molded object, process for producing the same, product for high-frequency signal transmission, and high-frequency transmission cable |
| CN102206391A (en) * | 2011-05-11 | 2011-10-05 | 复旦大学 | Polytetrafluoroethylene self-reinforced composite material and preparation method thereof |
| US20130085220A1 (en) * | 2011-09-30 | 2013-04-04 | Lakshmi Supriya | Meltprocessed fluoropolymer article and method for melt-processing fluoropolymers |
-
2014
- 2014-03-13 CN CN201410090190.0A patent/CN103871542A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2691694A (en) * | 1949-04-09 | 1954-10-12 | Du Pont | Polytetrafluoroethylene-glass fiber insulated electrical conductors |
| CN1842574A (en) * | 2003-08-25 | 2006-10-04 | 大金工业株式会社 | Molded object, process for producing the same, product for high-frequency signal transmission, and high-frequency transmission cable |
| CN102206391A (en) * | 2011-05-11 | 2011-10-05 | 复旦大学 | Polytetrafluoroethylene self-reinforced composite material and preparation method thereof |
| US20130085220A1 (en) * | 2011-09-30 | 2013-04-04 | Lakshmi Supriya | Meltprocessed fluoropolymer article and method for melt-processing fluoropolymers |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109867889A (en) * | 2017-12-04 | 2019-06-11 | 天津市川浩塑料制品有限公司 | Insulating material in a kind of Ultrathin coaxial cable |
| CN117524563A (en) * | 2024-01-04 | 2024-02-06 | 深圳琦富瑞电子有限公司 | Fiber reinforced fluoroplastic wire and cable and manufacturing method thereof |
| CN117524563B (en) * | 2024-01-04 | 2024-04-12 | 深圳琦富瑞电子有限公司 | Fiber reinforced fluoroplastic wire and cable and manufacturing method thereof |
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Application publication date: 20140618 |