CN102199405A - Production technology for polytetrafluoroethylene adhesive sheet - Google Patents
Production technology for polytetrafluoroethylene adhesive sheet Download PDFInfo
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- CN102199405A CN102199405A CN2010101312271A CN201010131227A CN102199405A CN 102199405 A CN102199405 A CN 102199405A CN 2010101312271 A CN2010101312271 A CN 2010101312271A CN 201010131227 A CN201010131227 A CN 201010131227A CN 102199405 A CN102199405 A CN 102199405A
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- cloth
- machine
- adhesive sheet
- glass cloth
- glass
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- 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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- Laminated Bodies (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention relates to the field of circuit board, especially a production technology for a polytetrafluoroethylene (PTFE) adhesive sheet. According to the simple making technology provided by the present invention, insufficient of domestic existing PTFE glass cloth copper clad laminates is improved, current situation of mainly relying on importing of high frequency microwave substrate is changed. With the present invention, the requirements by high-degree social information development and accelerated information processing development of domestic aviation, spaceflights, mobile phone receiving base stations are satisfied.
Description
Technical field
The present invention relates to field of circuit boards, especially a kind of production technique of tetrafluoroethylene adhesive sheet.
Background technology
Along with the direction of electronic product to miniaturization, high frequencyization, digitizing, high reliabilityization develops, the microwave current high-frequency multi-layer circuit board adopts epoxy resin board as adhesive sheet in the course of processing, but its kind is single, weldability is low, and dielectric loss is big, specific inductivity height, stability are extremely low.
Summary of the invention
The invention discloses a kind of production technique of tetrafluoroethylene adhesive sheet.
The technical solution adopted in the present invention is: a kind of production technique of tetrafluoroethylene adhesive sheet comprises following step:
A, glass cloth is via the rotary type Abrollhaspel, and the combination that connects the cloth machine and hold the cloth machine makes that machine can operate continuously;
B, hold the cloth machine and store enough former cloth, connecing the action that connects cloth on the cloth platform when rotary type Abrollhaspel can be stopped, connecing during the cloth, the stored glass cloth that gets off when holding the cloth machine and being released to the normal machines running makes and is not shut down normal change of lap production completely;
C, glass cloth pass through cement dipping machine, the PTFE emulsion is applied to glass cloth surface, fully penetrate into glass cloth through the PTFE emulsion, enter baking oven then, drying, cure with three zones of sintering and heat-treat, go out baking oven after, entangle limit machine and cooling through EPC again and roll and finish process of cooling, after tractor and bead cutter are made the tetrafluoroethylene adhesive sheet by winder.
The invention has the beneficial effects as follows, manufacture craft of the present invention is simple, it has not only improved the deficiency of the glass cloth coated copper coin of domestic existing PTFE, and can change the present situation of the main dependence on import of current domestic high frequency microwave substrate, satisfy the development of social advanced IT application such as domestic air mail, space flight, mobile telephone reception base station, the demand of the high speed development of information processing.
Embodiment
A kind of production technique of tetrafluoroethylene adhesive sheet comprises following step:
A, glass cloth is via the rotary type Abrollhaspel, and the combination that connects the cloth machine and hold the cloth machine makes that machine can operate continuously;
B, hold the cloth machine and store enough former cloth, connecing the action that connects cloth on the cloth platform when rotary type Abrollhaspel can be stopped, connecing during the cloth, the stored glass cloth that gets off when holding the cloth machine and being released to the normal machines running makes and is not shut down normal change of lap production completely;
C, glass cloth pass through cement dipping machine, the PTFE emulsion is applied to glass cloth surface, fully penetrate into glass cloth through the PTFE emulsion, enter baking oven then, drying, cure with three zones of sintering and heat-treat, go out baking oven after, entangle limit machine and cooling through EPC again and roll and finish process of cooling, after tractor and bead cutter are made the tetrafluoroethylene adhesive sheet by winder.
The temperature distribution of three warm areas of baking oven should be set according to the requirement of adhesive plaster.First warm area is a drying zone, and main effect is the moisture of removing in the adhesive plaster.Second warm area is for curing the district, and main effect is the interfacial agent of removing in the adhesive plaster.Three-temperature-zone is the sintering zone, and main effect is with the resin heating and melting.
In case of necessity, the gluing process can be carried out repeatedly, and the resin content to the adhesive plaster reaches till the requirement.
The present invention innovates by Processes and apparatus, improve the impregnating effect of tetrafluoroethylene adhesive sheet, overcome in the PTFE adhesive sheet that in dipping processing, occurs and contain problems such as micro-bubble, the Resin adhesive impregnability is poor, leakage is soaked, glue content is inhomogeneous, thereby make product performance more stable, have high precision specific inductivity (tolerance+0.02) and lower dielectric loss.
The present invention makes the tetrafluoroethylene adhesive sheet improve the dipping of PTFE glue to glass cloth in the course of processing by the vacuum-latexed mode, makes the glue stable content even.
Thereby the present invention improves the effect of impregnation and the homogeneity of glue content by dipping is controlled with the high precision of resin viscosity, and the target that high precision control will reach is: the gelatin viscosity deviation is littler, and viscosimetric analysis is fed back and adjusted in time.
Claims (1)
1. the production technique of a tetrafluoroethylene adhesive sheet is characterized in that: comprise following step:
A, glass cloth is via the rotary type Abrollhaspel, and the combination that connects the cloth machine and hold the cloth machine makes that machine can operate continuously;
B, hold the cloth machine and store enough former cloth, connecing the action that connects cloth on the cloth platform when rotary type Abrollhaspel can be stopped, connecing during the cloth, the stored glass cloth that gets off when holding the cloth machine and being released to the normal machines running makes and is not shut down normal change of lap production completely;
C, glass cloth pass through cement dipping machine, the PTFE emulsion is applied to glass cloth surface, fully penetrate into glass cloth through the PTFE emulsion, enter baking oven then, drying, cure with three zones of sintering and heat-treat, go out baking oven after, entangle limit machine and cooling through EPC again and roll and finish process of cooling, after tractor and bead cutter are made the tetrafluoroethylene adhesive sheet by winder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101312271A CN102199405A (en) | 2010-03-24 | 2010-03-24 | Production technology for polytetrafluoroethylene adhesive sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101312271A CN102199405A (en) | 2010-03-24 | 2010-03-24 | Production technology for polytetrafluoroethylene adhesive sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102199405A true CN102199405A (en) | 2011-09-28 |
Family
ID=44660399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101312271A Pending CN102199405A (en) | 2010-03-24 | 2010-03-24 | Production technology for polytetrafluoroethylene adhesive sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102199405A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102711378A (en) * | 2012-05-11 | 2012-10-03 | 倪新军 | Method for manufacturing high-frequency metal-base circuit base board |
| CN102909932A (en) * | 2012-10-31 | 2013-02-06 | 广东生益科技股份有限公司 | Method of applying high temperature-resistant buffer materials in glass cloth welding cloth |
| CN112538186A (en) * | 2019-09-04 | 2021-03-23 | 广东生益科技股份有限公司 | Interlayer bonding sheet for multilayer board and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0323345A (en) * | 1989-03-02 | 1991-01-31 | Toyota Motor Corp | Acceleration slip control device for vehicle |
| JPH09123345A (en) * | 1995-11-02 | 1997-05-13 | Toshiba Chem Corp | Copper-clad laminated plate |
| CN101534605A (en) * | 2009-04-11 | 2009-09-16 | 黄威豪 | Method for manufacturing high frequency copper-clad plate |
-
2010
- 2010-03-24 CN CN2010101312271A patent/CN102199405A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0323345A (en) * | 1989-03-02 | 1991-01-31 | Toyota Motor Corp | Acceleration slip control device for vehicle |
| JPH09123345A (en) * | 1995-11-02 | 1997-05-13 | Toshiba Chem Corp | Copper-clad laminated plate |
| CN101534605A (en) * | 2009-04-11 | 2009-09-16 | 黄威豪 | Method for manufacturing high frequency copper-clad plate |
Non-Patent Citations (1)
| Title |
|---|
| 辜信实: "《印制电路用覆铜箔层压板》", 28 February 2002, 化学工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102711378A (en) * | 2012-05-11 | 2012-10-03 | 倪新军 | Method for manufacturing high-frequency metal-base circuit base board |
| CN102909932A (en) * | 2012-10-31 | 2013-02-06 | 广东生益科技股份有限公司 | Method of applying high temperature-resistant buffer materials in glass cloth welding cloth |
| CN102909932B (en) * | 2012-10-31 | 2015-03-25 | 广东生益科技股份有限公司 | Method of applying high temperature-resistant buffer materials in glass cloth welding cloth |
| CN112538186A (en) * | 2019-09-04 | 2021-03-23 | 广东生益科技股份有限公司 | Interlayer bonding sheet for multilayer board and preparation method and application thereof |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110928 |