CN104096490B - PTFE doughnuts film production line and doughnut film production process - Google Patents
PTFE doughnuts film production line and doughnut film production process Download PDFInfo
- Publication number
- CN104096490B CN104096490B CN201410364447.7A CN201410364447A CN104096490B CN 104096490 B CN104096490 B CN 104096490B CN 201410364447 A CN201410364447 A CN 201410364447A CN 104096490 B CN104096490 B CN 104096490B
- Authority
- CN
- China
- Prior art keywords
- guide wheel
- ptfe
- heating system
- guide
- doughnuts
- 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.)
- Active
Links
Abstract
The invention discloses a kind of PTFE doughnuts film production line and doughnut film production process, it can obtain the more stable PTFE hollow-fibre membranes of high porosity, even aperture distribution, microcellular structure.PTFE doughnuts film production line includes PTFE doughnut pushing formings device, PTFE doughnuts stretching film formation device, PTFE hollow-fibre membranes and sinters shaping equipment and for the wrap-up by the PTFE hollow-fibre membranes winding after sizing is sintered.Through the PTFE hollow-fibre membranes of its production, its membrane aperture can be controlled in 0.05 0.5 μm, and porosity is more than 50%, and even aperture distribution, microcellular structure are highly stable.
Description
Technical field
The invention belongs to PTFE fiber film field shaping technique, a kind of PTFE hollow-fibre membranes production is concretely related to
Line.The invention further relates to a kind of PTFE doughnuts film production process.
Background technology
PTFE hollow-fibre membranes have the advantages that superpower chemical resistance, do radiativity and excellent biocompatibility,
It can be used for a long time at -200 DEG C~250 DEG C, be one of biological, medicine, environmental protection, the preferable film kind of chemical process.Particularly, its
The fracture of wire that membrane separating process runs into, the problems such as film durable hydrophobic, oxidative resistance and heat-resisting quantity are poor can be solved.Therefore, PTFE
Hollow-fibre membrane has wide market prospects.
At present, although existing production equipment can be successfully applied to the production of PTFE microporous membranes (Flat Membrane), but PTFE
Hollow-fibre membrane pore formation process theory is not perfect, the relation of partial routine condition and microcellular structure state it is unintelligible, therefore,
It is but still a new problem to prepare PTFE hollow-fibre membranes.
The content of the invention
It is an object of the invention to provide a kind of PTFE doughnuts film production line, it can obtain high porosity, pore-size distribution
Uniformly, the more stable PTFE hollow-fibre membranes of microcellular structure.
The object of the present invention is achieved like this：A kind of PTFE doughnuts film production line, including PTFE doughnuts are pushed away
Pressing molding device, PTFE doughnuts stretching film formation device, PTFE hollow-fibre membranes sinter shaping equipment and for sintering to be determined
The wrap-up of PTFE hollow-fibre membranes winding after type；
The PTFE doughnuts stretching film formation device includes the first guide wheel, the second guide wheel, its linear velocity and the second guide wheel
Equal the 3rd guide wheel, its linear velocity are more than four guide idler, the first heating system and the second heating system of the 3rd guide wheel；First
Guide wheel is arranged on the discharge port end of PTFE doughnut pushing forming devices, and the second guide wheel is arranged on the side of the first guide wheel,
Fall and hang for PTFE doughnuts between first guide wheel and the second guide wheel, the first heating system be located at the second guide wheel and the 3rd guide wheel it
Between, the second heating system is located between the 3rd guide wheel and four guide idler；
The PTFE hollow-fibre membranes sintering shaping equipment includes the 5th guide wheel and the 3rd heating system；3rd heating
System is located between four guide idler and the 5th guide wheel.
On the basis of such scheme and it is used as the preferred scheme of such scheme：First guide wheel, the second guide wheel, the 3rd
The conical surface is respectively provided with the side of guide wheel, four guide idler and the 5th guide wheel, shoulder is provided with the bottom of the conical surface.
On the basis of such scheme and it is used as the preferred scheme of such scheme：First heating system, the second heating system,
3rd heating system is formed by many heaters with helical heating element.
The present invention also provides a kind of PTFE hollow-fibre membranes for applying PTFE doughnuts film production line in such scheme
Production technology, including PTFE doughnut pushing forming devices are used to obtain the pushing forming step of PTFE doughnuts,
PTFE doughnuts are fallen to the synchronous adjustment step for hanging over and being formed between the first guide wheel and the second guide wheel；
The linear velocity of second guide wheel is equal with the linear velocity of the 3rd guide wheel, using the first heating system to PTFE doughnuts
The volatilisation step heated；
The linear velocity of four guide idler is more than the linear velocity of the 3rd guide wheel, and with being located between the 3rd guide wheel and four guide idler
Second heating system is heated to PTFE doughnuts, so that PTFE doughnuts to be drawn into the drawing of PTFE hollow-fibre membranes
Stretch step；
The linear velocity of four guide idler is equal with the linear velocity of the 5th guide wheel, using the 3rd heating system to PTFE doughnuts
Film is sintered the sintering fixating shape step of sizing；
Step is wound to the hollow-fibre membrane after sintering sizing.
On the basis of such scheme and as the preferred scheme of such scheme, first heating system has multiple add
Hot-zone, and raised from the second guide wheel toward the 3rd guide wheel direction.
On the basis of such scheme and as the preferred scheme of such scheme, second heating system has multiple add
Hot-zone, is raised from the 3rd guide wheel toward four guide idler direction.
On the basis of such scheme and as the preferred scheme of such scheme, the 3rd heating system has multiple add
Hot-zone, is reduced from four guide idler toward the 5th guide wheel direction.
The present invention is prominent and beneficial compared with prior art to be had the technical effect that：
1st, PTFE doughnuts film production line of the invention uses PTFE doughnut pushing formings device, the hollow fibres of PTFE
Wella is stretched into film device, PTFE hollow-fibre membranes sintering shaping equipment, and through the PTFE hollow-fibre membranes of its production, its membrane aperture can
Control is at 0.05-0.5 μm, and porosity is more than 50%, and even aperture distribution, microcellular structure are highly stable.
Brief description of the drawings
Fig. 1 is the structural representation of PTFE doughnuts film production line of the present invention.
Fig. 2 is the structural representation of the second guide wheel for being wound with PTFE doughnuts of the present invention.
Embodiment
With specific embodiment, the invention will be further described below in conjunction with the accompanying drawings, referring to Fig. 1-Fig. 2；
The PTFE doughnut film production lines that the present embodiment is provided, including PTFE doughnut pushing formings device 1, PTFE
Doughnut stretching film formation device, PTFE hollow-fibre membranes sinter shaping equipment and for that will sinter the hollow fibres of PTFE after sizing
Tie up the wrap-up 4 of film winding.
Wherein, PTFE doughnuts stretching film formation device includes the first guide wheel 21, the second guide wheel 22, the 3rd guide wheel 23, the
Four guide idler 24, the first heating system 25 and the second heating system 26.First guide wheel 21 is arranged on PTFE doughnut pushing formings
The discharge port end of device 1, the second guide wheel 22 is arranged on the side of the first guide wheel 21.Between the first guide wheel 22 and the second guide wheel 21
Fall and hang for PTFE doughnuts 100, during PTFE hollow-fibre membranes are produced, as shown in fig. 1, in the first guide wheel and the
PTFE doughnuts 100 between two guide wheels are in the state for drooping, and form reserved PTFE doughnuts, are used as synchronization
Adjust area.It is available when the feed speed of the 3rd guide wheel 23 is more than the extruded velocity of PTFE doughnut pushing formings device 1
The PTFE doughnuts that this section is reserved are supplied, it is ensured that stretch the continuation of stage work in position.Led in the second guide wheel 22 and the 3rd
The first heating system 25 is provided between wheel 23, its PTFE doughnut passes through, is provided with forming volatilization process.In the He of the 3rd guide wheel 23
The second heating system 26 is provided between four guide idler 24.In the present embodiment, the first heating system and the second heating system have
Multiple heating zones.Specifically, each heating system is by more than two sets heaters, along the feeding side of PTFE doughnuts
To row's example, multiple heating zones are made it have.Preferably, heater has helical heating element, and helical heating element supplies PTFE
Doughnut is passed through, so that PTFE doughnut thermally equivalents.PTFE doughnuts film production line operationally, the 3rd guide wheel 23
Linear velocity it is equal with the linear velocity of the second guide wheel 22, the linear velocity of four guide idler 24 is more than the linear velocity of the 3rd guide wheel 24, makes
There is speed difference between both it, PTFE hollow-fibre membranes are formed to carry out stretching to PTFE doughnuts.The PTFE doughnuts
Stretch film formation device and volatilisation step first is carried out to PTFE doughnuts, recycle the rotation linear velocity of the 3rd guide wheel and four guide idler
Difference simultaneously coordinates the second heating to the heating of PTFE doughnuts to complete to stretch operation, so that membrane aperture is controllable, porosity is high, hole
Footpath is evenly distributed.
The PTFE hollow-fibre membranes sintering shaping equipment includes the 5th guide wheel 31 and the 3rd heating system 32；3rd heating
System 32 is located between the guide wheel 31 of four guide idler 24 and the 5th.In the present embodiment, the 3rd heating system 32 also has multiple add
Hot-zone.Specifically, each heating system is arranged by more than two sets heaters along the direction of feed of PTFE hollow-fibre membranes
Example, makes it have multiple heating zones.Preferably, heater has spiral thermal element, and heating element heater supplies PTFE hollow-fibre membranes
Pass through, so that PTFE hollow-fibre membrane thermally equivalents.
The PTFE doughnut hydrophilic films being made of the PTFE doughnut film production lines, its membrane aperture is can be controlled in
0.05-0.5 μm, porosity is more than 50%, and fracture strength is more than 20N.
In the present embodiment, as shown in Fig. 2 there is the conical surface 221, in use, the cone on the side of second guide wheel 22
Face is wound for PTFE doughnuts 100.Shoulder 222 is provided with the bottom of the conical surface 221.Led using the first of this structure
Wheel, in its rotation process, can prevent the PTFE doughnut deflections on the first guide wheel.Preferably, the first guide wheel, the 3rd lead
Wheel, four guide idler and the 5th guide wheel are also used and the second guide wheel identical structure.
The present invention also provides a kind of PTFE doughnuts film production process, and it utilizes the PTFE hollow-fibre membranes of said structure
Production line, including using the pushing forming step of PTFE doughnut pushing forming devices；
Extruded material pendant hangs over the synchronous adjustment step formed between the first guide wheel and the second guide wheel；The line of second guide wheel
Speed is equal with the linear velocity of the 3rd guide wheel, using the first heating system being located between the second guide wheel and the 3rd guide wheel to PTFE
The volatilisation step that doughnut is heated.Preferably, the temperature that first heating system is heated is from the second guide wheel toward
Three guide wheel directions are raised.So that the first heating system has four heating zones as an example, from the second guide wheel toward the 3rd guide wheel direction successively
For the first heating zone, the second heating zone, the 3rd heating zone and the 4th heating zone, the first heating zone can be 60 DEG C, the second heating
Area can be 80 DEG C, the 3rd heating zone can be 100 DEG C, the 4th heating zone can be 120 DEG C.Certainly, according to actual production
Technique, the temperature of the first heating system can also be other numerical value.
Be more than the linear velocity of the 3rd guide wheel using the linear velocity of four guide idler, and be located at the 3rd guide wheel and four guide idler it
Between the stretching step that is heated of the second heating system.Preferably, the temperature that second heating system is heated is from the 3rd
Guide wheel is raised toward four guide idler direction.So that the second heating system has four heating zones as an example, from the 3rd guide wheel toward four guide idler
Direction is followed successively by the first heating zone, the second heating zone, the 3rd heating zone and the 4th heating zone, the first heating zone can be 180 DEG C,
Second heating zone can be 200 DEG C, the 3rd heating zone can be 240 DEG C, the 4th heating zone can be 280 DEG C.Certainly, according to real
The production technology on border, the temperature of the second heating system can also be other numerical value.
It is equal with the linear velocity of the 5th guide wheel using the linear velocity of four guide idler, using being located at the 5th guide wheel and four guide idler
Between the 3rd heating system the sintering fixating shape step step of sizing is sintered to PTFE hollow-fibre membranes.Preferably, the 3rd
The temperature that heating system is heated is reduced from four guide idler toward the 5th guide wheel direction.There are four heating zones with the 3rd heating system
Exemplified by, it is followed successively by the first heating zone, the second heating zone, the 3rd heating zone and the 4th heating from four guide idler toward the 5th guide wheel direction
Area, the first heating zone can be 260 DEG C, the second heating zone can be 260 DEG C, the 3rd heating zone can be 240 DEG C, the 4th heating
Area can be 220 DEG C.Certainly, according to actual production technology, the temperature of the 3rd heating system can also be other numerical value.
Above-described embodiment is only presently preferred embodiments of the present invention, is not limited the scope of the invention according to this, therefore：It is all according to
The equivalence changes that structure, shape, the principle of the present invention is done, all should be covered by within protection scope of the present invention.
Claims (2)
1. a kind of PTFE doughnuts film production line, it is characterised in that：Including in PTFE doughnut pushing formings device, PTFE
Hollow fiber stretching film formation device, PTFE hollow-fibre membranes sinter shaping equipment and for that will sinter the PTFE doughnuts after sizing
The wrap-up of film winding；PTFE doughnuts stretching film formation device include the first guide wheel, the second guide wheel, its linear velocity with
The 3rd equal guide wheel of second guide wheel, its linear velocity are more than four guide idler, the first heating system and the second heating of the 3rd guide wheel
System；First guide wheel is arranged on the upper end of the discharging opening of PTFE doughnut pushing forming devices, and PTFE doughnuts are pushed away
Upward, the second guide wheel is arranged on the side of the first guide wheel in the extrusion direction of pressing molding device, the first guide wheel and the second guide wheel it
Between fall and hang for PTFE doughnuts, the 3rd guide wheel is arranged on the lower section of the second guide wheel, and four guide idler is arranged on the upper of the 3rd guide wheel
Side, the side of the second guide wheel, the first heating system are located between the second guide wheel and the 3rd guide wheel, and the second heating system is located at the 3rd
Between guide wheel and four guide idler；
PTFE hollow-fibre membranes sintering shaping equipment includes the 5th guide wheel and the 3rd heating system, and the 5th guide wheel is arranged on the
The lower section of four guide idler, the 3rd heating system is located between four guide idler and the 5th guide wheel；
First heating system, the second heating system, the 3rd heating system are provided with multiple heating zones, wherein, first adds
Hot systems heating-up temperature is raised from the second guide wheel toward the 3rd guide wheel direction, and the second heating system heats temperature is from the 3rd guide wheel toward
Four guide idler direction is raised, and the 3rd heating system heats temperature is reduced from four guide idler toward the 5th guide wheel direction；
First guide wheel, the second guide wheel, the 3rd guide wheel, the conical surface is respectively provided with the side of four guide idler and the 5th guide wheel, at this
The bottom of the conical surface is provided with shoulder, and the first heating system, the second heating system, the 3rd heating system add by many with spiral
The heater of thermal element is formed, and helical heating element is passed through for PTFE hollow-fibre membranes.
2. a kind of PTFE doughnut film production process of the PTFE doughnut film production lines described in application claim 1, bag
Include and use PTFE doughnut pushing forming devices to obtain the pushing forming step of PTFE doughnuts, by PTFE doughnuts
Pendant hangs over the synchronous adjustment step formed between the first guide wheel and the second guide wheel；The linear velocity of second guide wheel and the 3rd guide wheel
Linear velocity is equal, the volatilisation step heated using the first heating system to PTFE doughnuts；The linear velocity of four guide idler
More than the linear velocity of the 3rd guide wheel, and with the second heating system being located between the 3rd guide wheel and four guide idler to the hollow fibres of PTFE
Dimension is heated, so that PTFE doughnuts to be drawn into the stretching step of PTFE hollow-fibre membranes；The linear velocity of four guide idler
Equal with the linear velocity of the 5th guide wheel, the sintering that sizing is sintered to PTFE hollow-fibre membranes using the 3rd heating system is shaped
Step；Step is wound to the hollow-fibre membrane after sintering sizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410364447.7A CN104096490B (en) | 2014-07-29 | 2014-07-29 | PTFE doughnuts film production line and doughnut film production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410364447.7A CN104096490B (en) | 2014-07-29 | 2014-07-29 | PTFE doughnuts film production line and doughnut film production process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104096490A CN104096490A (en) | 2014-10-15 |
| CN104096490B true CN104096490B (en) | 2017-11-07 |
Family
ID=51665266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410364447.7A Active CN104096490B (en) | 2014-07-29 | 2014-07-29 | PTFE doughnuts film production line and doughnut film production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104096490B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106738996A (en) * | 2017-01-20 | 2017-05-31 | 郭绍华 | A kind of doughnut film stretching sintering machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1966786A (en) * | 2006-03-08 | 2007-05-23 | 常州市兴诚高分子材料有限公司 | High strength polytetrafluoroethylene fiber and process for producing same |
| CN102961976A (en) * | 2012-12-14 | 2013-03-13 | 国家***天津海水淡化与综合利用研究所 | Polytetrafluoroethylene hollow fiber micro-porous film and preparation method thereof |
-
2014
- 2014-07-29 CN CN201410364447.7A patent/CN104096490B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1966786A (en) * | 2006-03-08 | 2007-05-23 | 常州市兴诚高分子材料有限公司 | High strength polytetrafluoroethylene fiber and process for producing same |
| CN102961976A (en) * | 2012-12-14 | 2013-03-13 | 国家***天津海水淡化与综合利用研究所 | Polytetrafluoroethylene hollow fiber micro-porous film and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104096490A (en) | 2014-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101927133B (en) | High-flux filter material, preparation method thereof and self-inhalation medical mask made of high-flux filter material | |
| CN107670514B (en) | Polytetrafluoroethylene film and preparation method thereof | |
| CN107441962B (en) | Preparation method of super-hydrophobic polytetrafluoroethylene membrane | |
| CN104415672A (en) | High-filtering-precision polytetrafluoroethylene microporous membrane preparing method | |
| CN103088552A (en) | Manufacturing technology of polyethylene spunbond cloth | |
| RU2019133129A (en) | PRODUCTION METHOD AND COATING DEVICE DESIGNED FOR COATING A BUNDLE OF REINFORCING FIBERS, LIKE A SHEET, AND COMBINED INTO A WHOLE LEAF | |
| MX2017008616A (en) | Method and device for producing a fiber composite material. | |
| EP2961701B1 (en) | Apparatus and method for forming a glass sheet with core glass and clad glass | |
| CN104096490B (en) | PTFE doughnuts film production line and doughnut film production process | |
| CN103510171B (en) | A kind of dacron fine denier multi-hole flat fiber and production method thereof | |
| CN105734834A (en) | Continuous non-woven fabric melt-blowing method and non-woven fabric | |
| CN207452312U (en) | Special-shaped drafting silk preparation facilities | |
| CN105689659A (en) | Casting mouth clamp and temperature control system and method using casting mouth clamp | |
| CN103950193B (en) | The preparation facilities of polytetrafluoroethylmicroporous microporous membrane and method | |
| CN102342730A (en) | Composite PVC (Polyvinyl Chloride) carpet and manufacturing method of same | |
| CN104190268A (en) | Bidirectional drawing device and bidirectional drawing method for hollow polytetrafluoroethylene fiber membrane | |
| JP2003176374A (en) | Method and equipment for producing polytetrafluoroethylene porous membrane | |
| CN101879805A (en) | Multilayer film production equipment and multilayer film production method | |
| CN105013351B (en) | A kind of preparation method of polytetrafluoroethylene (PTFE) super-hydrophobic film | |
| CN203713034U (en) | Separated type hollow sunshine sheet mold | |
| CN104998558A (en) | Production method of super-hydrophobic polytetrafluoroethylene membrane | |
| CN108284590A (en) | 3D printing consumptive material wire-drawing equipment | |
| CN206814619U (en) | One kind delays heat regulating device caused by crystallization | |
| CN106567148B (en) | A kind of production method of dry method flat acrylic | |
| CN108466415B (en) | Wet diaphragm membrane preparation device and preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |