CN103031085A - Polytetrafluoroethylene bonding sheet - Google Patents
Polytetrafluoroethylene bonding sheet Download PDFInfo
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- CN103031085A CN103031085A CN2010101328053A CN201010132805A CN103031085A CN 103031085 A CN103031085 A CN 103031085A CN 2010101328053 A CN2010101328053 A CN 2010101328053A CN 201010132805 A CN201010132805 A CN 201010132805A CN 103031085 A CN103031085 A CN 103031085A
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- Prior art keywords
- polytetrafluoroethylene
- bonding sheet
- adhesive sheet
- mass
- extremely
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- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention relates to the technical field of circuit boards, and especially relates to a polytetrafluoroethylene bonding sheet. The bonding sheet contains 35-90% by mass of a polytetrafluoroethylene emulsion, 8-60% by mass of a glass fiber cloth, 0.5-2% by mass of an assistant, and the balance solvent. The polytetrafluoroethylene bonding sheet has an extremely-low dielectric constant and an extremely-low loss factor, and the dielectric constant of polytetrafluoroethylene is quite stable in a very wide frequency range, so the application range of the polytetrafluoroethylene bonding sheet is very wide.
Description
Technical field
The present invention relates to the circuit board technology field, especially a kind of polytetrafluoroethyladhesive adhesive sheet.
Background technology
Along with the future development of electronic product to miniaturization, high frequency, digitizing, high reliability, the epoxy resin boards that adopt as adhesive sheet more in the course of processing for the available circuit plate, and this description of materials is single, non-refractory, and loss is larger.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of polytetrafluoroethyladhesive adhesive sheet, to solve the technical problems such as original adhesive sheet non-refractory and loss are larger.
The technical solution adopted for the present invention to solve the technical problems is: a kind of polytetrafluoroethyladhesive adhesive sheet, this adhesive sheet contain the ptfe emulsion that mass percent is 35-90%, the glasscloth of 8-60%, the auxiliary agent of 0.5-2%, and surplus is solvent.
The invention has the beneficial effects as follows that the present invention has extremely low specific inductivity and dissipation factor, and tetrafluoroethylene also quite stable of specific inductivity in very wide range of frequency, so the scope of application is very vast.
Embodiment
A kind of polytetrafluoroethyladhesive adhesive sheet, this adhesive sheet contain the ptfe emulsion that mass percent is 35-90%, the glasscloth of 8-60%, the auxiliary agent of 0.5-2%, and surplus is solvent.
The present invention innovates by Processes and apparatus, improve the impregnating effect of polytetrafluoroethyladhesive adhesive sheet, overcome and contain the problems such as micro-bubble, the Resin adhesive impregnability is poor, leakage is soaked, glue content is inhomogeneous in the PTFE adhesive sheet that in impregnation processability, occurs, thereby make high frequency microwave pdm substrate performance more stable, have high precision specific inductivity (tolerance+0.02) and lower dielectric loss.
The present invention makes polytetrafluoroethyladhesive adhesive sheet improve the PTFE glue to the dipping of glass-fiber-fabric 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 less, and viscosimetric analysis is fed back and adjusted in time.
Main Feature of the present invention has:
1, the corrosion of anti-strong acid, highly basic, chloroazotic acid and various organic solvents.
2, drug resistance, nontoxicity almost can anti-all medicament article.
3, transmittance reaches 6-13%.
4, frictional coefficient low (0.05-0.1) is the optimal selection of oil-free self lubrication.
5, good temp characteristic has weather, and anti-ageing property can be used under 260 ℃ of high-temperature conditions for a long time, and its product performance are constant; In-60 ℃ of ultra-low temperature surroundings, can keep original flexibility.
6, Abherent: superior self-cleaning property, its smooth surface have extremely strong non-stick property and being stained with property not, are easy to clean the various oil stains, stain or other dirt settling that adhere to its surface.
7, have high insulating property, lower specific inductivity, dielectric loss reach the requirement of UL-94 flame resistivity.
Claims (1)
1. polytetrafluoroethyladhesive adhesive sheet, it is characterized in that: described adhesive sheet contains the ptfe emulsion that mass percent is 35-90%, the glasscloth of 8-60%, the auxiliary agent of 0.5-2%, and surplus is solvent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101328053A CN103031085A (en) | 2010-03-24 | 2010-03-24 | Polytetrafluoroethylene bonding sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101328053A CN103031085A (en) | 2010-03-24 | 2010-03-24 | Polytetrafluoroethylene bonding sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103031085A true CN103031085A (en) | 2013-04-10 |
Family
ID=48018496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101328053A Pending CN103031085A (en) | 2010-03-24 | 2010-03-24 | Polytetrafluoroethylene bonding sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103031085A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0657514A1 (en) * | 1993-12-01 | 1995-06-14 | Hoechst Aktiengesellschaft | Aqueous dispersion of fluoropolymers, its manufacture and utilisation for coatings |
| WO1998058984A1 (en) * | 1997-06-24 | 1998-12-30 | Dyneon Gmbh | Aqueous dispersion of fluoropolymers of varying particle size |
| CN1480319A (en) * | 2002-09-06 | 2004-03-10 | 张贵平 | Technique of preparing graticule cloth from teflon |
| CN101240509A (en) * | 2008-03-26 | 2008-08-13 | 泰兴市维维高分子材料有限公司 | Method for preparing polytetrafluoroethylene spatial structure building film material |
-
2010
- 2010-03-24 CN CN2010101328053A patent/CN103031085A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0657514A1 (en) * | 1993-12-01 | 1995-06-14 | Hoechst Aktiengesellschaft | Aqueous dispersion of fluoropolymers, its manufacture and utilisation for coatings |
| WO1998058984A1 (en) * | 1997-06-24 | 1998-12-30 | Dyneon Gmbh | Aqueous dispersion of fluoropolymers of varying particle size |
| CN1480319A (en) * | 2002-09-06 | 2004-03-10 | 张贵平 | Technique of preparing graticule cloth from teflon |
| CN101240509A (en) * | 2008-03-26 | 2008-08-13 | 泰兴市维维高分子材料有限公司 | Method for preparing polytetrafluoroethylene spatial structure building film material |
Non-Patent Citations (4)
| Title |
|---|
| 胡福田等: ""玻璃纤维布增强聚四氟乙烯复合材料的制备及性能研究"", 《化工新型材料》, vol. 34, no. 12, 31 December 2006 (2006-12-31), pages 19 - 22 * |
| 胡福田等: ""聚四氟乙烯覆铜板的制备及性能研究"", 《玻璃钢/复合材料》, no. 2, 31 March 2008 (2008-03-31), pages 38 - 41 * |
| 顾元栋: ""聚四氟乙烯浸渍玻璃布"", 《含氟材料》, no. 04, 31 December 1988 (1988-12-31) * |
| 黄祥瑞: ""聚四氟乙烯玻璃漆布"", 《有机氟工业》, no. 3, 30 June 1998 (1998-06-30) * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130410 |