CN1081933A - A kind of molding press for unimolecular film - Google Patents
A kind of molding press for unimolecular film Download PDFInfo
- Publication number
- CN1081933A CN1081933A CN 92107679 CN92107679A CN1081933A CN 1081933 A CN1081933 A CN 1081933A CN 92107679 CN92107679 CN 92107679 CN 92107679 A CN92107679 A CN 92107679A CN 1081933 A CN1081933 A CN 1081933A
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- CN
- China
- Prior art keywords
- toot
- molding press
- monomolecular film
- film
- unimolecular film
- 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.)
- Granted
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of molding press for unimolecular film that relates to preparation monomolecular film technical field, especially the molding press for unimolecular film of forming by toot, valve and support, wherein, toot is the polytetrafluoroethylene (PTFE) toot, its cone angle is greater than 30 °, the toot bottom also is provided with opening, and valve is located at opening part, and toot is arranged on the support.The present invention also can be provided with the surface pressure meter, and this meter is by bracket supports, perhaps below the outlet at bottom of toot graduated cylinder is set.The present invention has simple in structure, and monomolecular film flows evenly, by its advantage such as monomolecular film thickness unanimity that make.
Description
A kind of molding press for unimolecular film that is used to prepare monomolecular film especially comprises the molding press for unimolecular film of toot.
Sale now or the film-making machine that uses, adopt mostly in rectangular slot with a baffle plate compression monomolecular film, though this film-making machine can be prepared monomolecular film, but, this monomolecular film of making thus exists the uneven defective of film, its reason is that monomolecular film has certain surface viscosity, when in rectangular slot, being subjected to monolateral compression, it flows inhomogeneous, after this, people adopt polylith baffle plate press mold, parallelogram press mold and etc. means such as girth baffle plate improve its mobile performance, but do not overcome the monomolecular film uneven shortcoming that flows yet.
These film-making machines even can cause film rupture because of the mould of close baffle plate is too high, too small and can't transfer on the solid substrate away from baffle plate place mould.
Goal of the invention of the present invention is to provide a kind of conical molding press for unimolecular film that can improve the monomolecular film flow uniformity.
The present invention adopts following technical proposals to reach goal of the invention:
The present invention is made up of support (1), toot (2) and valve (3), wherein, establishes opening (6) in toot (2) bottom, and valve (3) is located at opening (6) and locates, and toot (2) is arranged on the support (1).For improving press mold performance of the present invention, toot (2) is the polytetrafluoroethylene (PTFE) toot.
Compared with prior art, the present invention has following advantage:
1. since sparse monomolecular film along with the reduction of liquid level in the toot pressurized, and conical wall is made up of one group of radius continually varying concentric circles, so, monomolecular film is in the process of being compressed, continuous variation of its suffered pressure and pressurized are even, this just makes monomolecular film flow evenly the monomolecular film thickness unanimity that makes.
2. the present invention only reduces in toot with liquid level and comes press mold, need not baffle plate indispensable in other film pressing device, so the present invention has advantage of simple structure.
3. because the highest face temperature that the present invention can reach is pressed the pressure of breaking less than monomolecular film.Therefore, under the situation of not using the surface pressure meter, the monomolecular film that also can make closely and not break by the present invention.
4. because the present invention has adopted the polytetrafluoroethylene (PTFE) toot, can improve the accessible surface pressure of monomolecular film in the preparation monomolecular film process widely.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of the embodiment of the invention.
With reference to the accompanying drawings, implementation of the present invention being done one describes in detail:
The present invention is by support (1), toot (2) and valve (3) are formed, toot (2) is the polytetrafluoroethylene (PTFE) toot, its cone angle can be selected in greater than 30 ° scope, but optimum taper angle is 55 °～65 °, for example: can select 55 °, 60 ° or 65 ° of cone angles, be provided with opening (6) in its bottom, it can be processed by polytetrafluoroethylsteel steel bar, also can make by its shape earlier by other material, then, spray one deck polytetrafluoroethylene (PTFE) within it on the wall, valve (3) is located at the opening (6) of toot (2) and locates, specifically, opening (6) links to each other with an end of conduit (8) (conduit can adopt rubber tube), and the other end of conduit (8) links to each other with switch (3).The present invention also measures the surface pressure of monomolecular film (7) by following measures, so that make best monomolecular film: 1. in the below of the opening (6) of toot (2) graduated cylinder (4) is set, this means of testing is to extrapolate the monomolecular film surface pressure according to what graduated cylinder (4) recorded by the interior trickle volume of toot (2).Surface pressure meter (5) 2. is set in this device, can select to hang chip surface pressure meter, this meter is by support (1) supporting, and this means of testing is by recording that liquid surface has and surface pressure when not having monomolecular film is extrapolated the surface pressure of monomolecular film.
Before using the present invention to make film, need container is cleaned up, fill with clean water then, on the water surface, drip the organic solution of quantitative flim forming molecule, hang on, make it sprawl into sparse monomolecular film.Open valve (3) then, allow water slowly flow down, the water that flows down is placed in the graduated cylinder, is used for calculating the surface pressure of height, membrane area and the film of the circular cone container water surface.(have different pressure to require to different filmogens) when the surface pressure of film increases to a certain degree, a netted disk is placed on the liquid-vapor interface, mesh shape and size depend on the solid substrate that will deposit monomolecular film.Grid is separated into same shape and big or small many fritters with the monomolecular film of the water surface, deposits for solid substrate.During deposition the solid substrate level is attached on the monomolecular film, monomolecular film just can be transferred on the solid substrate.
Claims (6)
1, a kind of molding press for unimolecular film that is used to prepare monomolecular film, comprise support (1), it is characterized in that this device is made up of toot (2) and valve (3), wherein, be provided with opening (6) in the bottom of toot (2), valve (3) is located at opening (6) and locates, and toot (2) is arranged on the support (1).
2, molding press for unimolecular film according to claim 1 is characterized in that toot (2) is the polytetrafluoroethylene (PTFE) toot.
3, molding press for unimolecular film according to claim 1 and 2, the cone angle that it is characterized in that toot (2) is greater than 30 °.
4, molding press for unimolecular film according to claim 3, the optimum taper angle that it is characterized in that toot (2) are 55 °～65 °.
5, molding press for unimolecular film according to claim 1 and 2 is characterized in that this device also can be provided with surface pressure meter (5), and this meter (5) is supported by support (2).
6, molding press for unimolecular film according to claim 1 and 2 is characterized in that at the following of outlet (6) of toot (2) graduated cylinder (4) being set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92107679 CN1027623C (en) | 1992-08-08 | 1992-08-08 | Molding press for unimolecular film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92107679 CN1027623C (en) | 1992-08-08 | 1992-08-08 | Molding press for unimolecular film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1081933A true CN1081933A (en) | 1994-02-16 |
| CN1027623C CN1027623C (en) | 1995-02-15 |
Family
ID=4943001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92107679 Expired - Fee Related CN1027623C (en) | 1992-08-08 | 1992-08-08 | Molding press for unimolecular film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1027623C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300369C (en) * | 2002-09-20 | 2007-02-14 | 中国科学技术大学 | Method for preparing self-assenbling monomolecular film in vapor phase and vapor phase assembiling instrument |
-
1992
- 1992-08-08 CN CN 92107679 patent/CN1027623C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300369C (en) * | 2002-09-20 | 2007-02-14 | 中国科学技术大学 | Method for preparing self-assenbling monomolecular film in vapor phase and vapor phase assembiling instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1027623C (en) | 1995-02-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |