CN106113479A - A kind of polymer surfaces micro nano structure volume to volume hot-rolling imprinting moulding method - Google Patents
A kind of polymer surfaces micro nano structure volume to volume hot-rolling imprinting moulding method Download PDFInfo
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- CN106113479A CN106113479A CN201610430982.7A CN201610430982A CN106113479A CN 106113479 A CN106113479 A CN 106113479A CN 201610430982 A CN201610430982 A CN 201610430982A CN 106113479 A CN106113479 A CN 106113479A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
- B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
- B29C59/043—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts for profiled articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
- B29C59/021—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing of profiled articles, e.g. hollow or tubular articles, beams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
- B29C59/022—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing characterised by the disposition or the configuration, e.g. dimensions, of the embossments or the shaping tools therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
- B29C59/022—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing characterised by the disposition or the configuration, e.g. dimensions, of the embossments or the shaping tools therefor
- B29C2059/023—Microembossing
Abstract
The present invention relates to a kind of polymer surfaces micro nano structure volume to volume hot-rolling imprinting moulding method, step is: from unwinding device, polymeric material is sent to pre-hot-rolling, is preheated to binding temperature, and fits with base band hot pressing；Being sent between mould roller and pressure roll by the polymeric material being fitted in base band, polymeric material is heated to imprint temperature through pre-heated mould roller, fills die cavity by pressure roll effect the most again；Opening supersonic vibration assembly while filling type, supersonic vibration has assisted volume to volume hot-rolling moulding process；Polymeric material is after spreading out of between mould roller and pressure roll, and cooling is also separated from mould roller；After the demoulding completes, continue cooling polymeric articles, it is achieved polymeric articles separates with base band, last rolling.The present invention utilizes supersonic vibration to improve volume to volume hot-rolling imprinting moulding technique, accelerates cavity filling process, improves accuracy of repetition, reduces knockout press and demoulding deformation, is the imprinting moulding method of a kind of technique advanced person.
Description
Technical field
The present invention relates to a kind of volume to volume hot-rolling coinging method, particularly relate to polymer surfaces micro nano structure volume right
Volume hot-rolling imprinting moulding method.
Background technology
Surface Machining has the polymeric substrate of micro nano structure to have in fields such as optical thin film, flexible electronic, biochips
And be widely applied.Use volume to volume hot-rolling stamping technique, can surface of polymer substrates realize micro nano structure large area,
High efficiency, low cost and high-precision shaping.Volume to volume hot-rolling impressing forming technique is by by the mode of production of volume to volume and biography
The flat board hot padding forming technology of system combines, and makes thermoplastic polymer base material to be imprinted connect between mould roller and support roller
Continuous roller heats up while crossing and softens and filling die cavity under pressure, thus realizes becoming continuously of large area micro-nano rice structure
Shape, and significantly improve production efficiency.
Common thermoplastic, polymeric materials, such as polymetylmethacrylate, polycarbonate, polyvinylchloride
Deng, still there is time more than vitrification point even flow temperature higher viscosity, will realize filling type completely needs longer
Time.Under elastomeric state, the deformation recovery of polymeric material is notable, it usually needs enough dwell times, just can make stress relaxation
Process completes in imprint stage, thus reaches the purpose of resilience after reduction shapes.Additionally, under micro-nano-scale, material and mould
The inhibition filling type be can not ignore by the adhesion between tool interface, makes the type flowing of filling of material become more difficult, meanwhile, and material
And the adhesion between mould also will become the resistance in knockout course, easily cause demoulding defect.In volume to volume hot-rolling impressing shapes,
The mobile performance of polymeric material to be improved, increase filling time, decreasing rebound, the accuracy of repetition of guarantee micro nano structure, then
Need improve roll temperature and reduce roll-in speed.And in order to avoid the difficulty of high temperature bottom knockout and polymeric substrate are in roll-in
During occur the most thinning and deformation, generally have to reduce roll-in speed.
Relatively low roll-in speed becomes one of reason limiting the development of volume to volume direct hot-rolling stamping technique.In the face of large area
The quick growth of polymer surfaces micro nano structure process requirements, improves roll-in speed and accuracy of repetition becomes and is pushed further into volume
Key to volume hot-rolling stamping technique industrial applications.
Chinese patent 201210292620.8 discloses a kind of based on volume to volume hot-rolling compression polymer film surface micro structure
Processing unit (plant) and method, including: unreel, preheating, hot-rolling pressure, conformal, cooling and six stages of rolling.The stage of unreeling is to be polymerized
Thing thin film is extracted out from coiled material continuously, removes film surface electrostatic.Thin polymer film, after warm-up phase, is heated to its glass
Below transition temperature, prepare for the hot-rolling pressure stage.It is warming up to glass by roller is carried out local heat treatment, only stamping surface
More than transition temperature, to the film roll pressing formation after preheating.The conformal stage makes the thin film after rolling formation still tight with roller surface
Closely connected conjunction so that it is fully deform.Cooling is simultaneously acted on the thin film after shaping with conformal, makes surface fine structure solid rapidly
Change, reduce resilience.Compared with prior art, this invention has minimizing resilience, and the demoulding is easy, but the roll-in speed of this invention
And accuracy of repetition ratio is relatively low, it is unfavorable for extensive efficiently production.
Summary of the invention
It is an object of the invention to overcome deficiency present in existing volume to volume hot-rolling imprint process, it is provided that a kind of Under Ultrasonic Vibration
The micro nano structure volume to volume hot-rolling imprinting moulding method of dynamic auxiliary and device, utilize supersonic vibration to improve volume to volume hot-rolling impressing
Moulding process: accelerate cavity filling process, improve accuracy of repetition, promotion aerofluxus, reduction knockout press and demoulding deformation.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of polymer surfaces micro nano structure volume to volume hot-rolling imprinting moulding method, the method comprises the following steps:
(1) unreeling preheating: from unwinding device, polymeric material is sent to pre-hot-rolling, polymeric material is preheated to laminating temperature
Degree, applies pressure by pre-hot-rolling simultaneously and fits with base band hot pressing；
(2) type is filled: be sent between mould roller and pressure roll by the polymeric material being fitted in base band, polymeric material
It is heated to imprint temperature through pre-heated mould roller, fills die cavity by pressure roll effect the most again, open Under Ultrasonic Vibration simultaneously
Dynamic assembly, supersonic vibration has assisted cavity filling process；
(3) demoulding: polymeric material is after spreading out of between mould roller and pressure roll, and cooling is also separated from mould roller
Coming, supersonic vibration has assisted knockout course；
(4) rolling: after the demoulding completes, continues cooling polymeric articles, it is achieved polymeric articles separates with base band, finally
Rolling, completes volume to volume hot-rolling imprinting moulding process.
Described polymeric material is thermoplastic polymer coiled material or sheet material, and thickness is 50-500 μm.
Binding temperature scope described in step (1) is more than polymeric material vitrification point 10 DEG C to below flow temperature
10℃。
Imprint temperature scope described in step (2) is that below polymeric material flow temperature 10 DEG C is to above 50 DEG C.
Described supersonic vibration be applied to mould roller and pressure roll composition on the driven voller in roller, this supersonic vibration depends on
Secondary pressure roll supporting, pressure roll, base band and the polymeric material of being transferred to, and act on and whole fill type and knockout course.
The frequency of vibration of described supersonic vibration is 20～40kHz, and vibration amplitude is 5～50 μm, utilizes more than 20kHz's
Supersonic vibration causes polymeric material viscoelasticity heat production, and the intensification accelerating polymeric material melts, and utilizes the ultrasonic of high frequency simultaneously
The adhesion resistance in type and knockout course between material and mould is filled in the discharge of facilitated mould intracavity gas reduction, by adjusting
Joint frequency of vibration and vibration amplitude are suitable for different polymeric substrate and the coinging of different micro nano structure.
Described base band is to have the sheet metal strip of flexibility, heat-resistant polymer band or by fibre reinforced materials and toughness
The flexible composite of polymer composition.These strip surface smooth and and processed polymeric material between show under room temperature weak
The strong feature adhered under adhesion, high temperature.
A kind of device of described volume to volume hot-rolling imprinting moulding method, including pressure roll supporting, pressure roll and mould roller,
Also include that at least one supersonic vibration assembly, described supersonic vibration assembly are connected with pressure roll supporting.
Compared with prior art, the invention have the advantages that
1, after polymeric material being preheated to more than vitrification point, the viscoelasticity heat auxiliary that supersonic vibration causes is utilized
Melting of polymeric material so that it is apparent viscosity reduces rapidly, that accelerates polymeric material fills type flowing, such that it is able to improve roller
Pressure speed；
2, during polymeric material fills type, due to the effect of supersonic vibration, between polymeric material and die cavity wall
The relative displacement having dither occurs, and this not only improves and promotes the discharge of residual gas in die cavity, is conducive to again reducing material
And the adhesion between mould, reduces and fills the resistance being subject in type and knockout course, thus assist material fill type and the demoulding；
3, utilize base band under high temperature that the adhesive attraction that polymeric material is stronger is reduced the thermal deformation that polymeric material is overall,
Meanwhile, during the transmission of volume to volume, base band can the polymeric material being heated near viscous state as substrate support,
Cavity filling process in volume to volume direct hot-rolling imprint process can be carried out at relatively high temperatures, strengthen the direct hot-rolling of volume to volume
The Technological adaptability that impressing shapes；
4, in cooling procedure, when utilizing low temperature, polymeric material adhesive attraction is weakened realization shaping post-consumer polymer by base band
Product separates with base band.
The present invention utilizes supersonic vibration to improve volume to volume hot-rolling imprinting moulding technique, accelerates cavity filling process, improves multiple
Precision processed, reduces knockout press and demoulding deformation, is the imprinting moulding method of a kind of technique advanced person.
Accompanying drawing explanation
Fig. 1 is the device schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the device schematic diagram that Fig. 1 converts supersonic vibration assembly；
Fig. 3 is the device schematic diagram of the embodiment of the present invention 2；
In figure: 1-let off roll, 2-polymeric material, the pre-hot-rolling of 3-, 4-mould roller, 5-pressure roll, 6-the first base band transmission
Wheel, 7-the second base band transmits wheel, 8-base band, and 9-pressure roll supports, 10-supersonic vibration assembly, 11-roller pressure bringing device, 12-
Chiller, 13-polymer film product, 14-wind-up roll, 15-PVC layer, 16-PET layer, 17-infrared heating device, I, II,
III-Under Ultrasonic Vibration action roller.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
In the present embodiment, polymeric material used is monolayer material, selects thermoplastic polymer PC (Merlon), adopts
Its schematic diagram of device as it is shown in figure 1, wherein let off roll 1, pre-hot-rolling 3, mould roller the 4, second base band transmit wheel 7 and wind-up roll
The rotation of 14 is driven by motor, and they are as the drive roll in volume to volume transmission, and the second base band transmits the rotation of wheel 7 and drives base band
The transmission motion of 8 and the first base band transmit the rotation of wheel 6, and the rotation of pressure roll 5 is carried jointly by the motion of mould roller 4 and base band 8
Dynamic；The hydraulic cylinder being connected with pre-hot-rolling 3 can promote pre-hot-rolling 3 to press to the first base band and transmit wheel 6, the hydraulic pressure being connected with pressure roll 5
Cylinder can promote pressure roll 5 to press to mould roller 4.
Before roll-in starts, the temperature on pre-hot-rolling 3 surface is heated to more than the glass transition temperature of PC, in the present embodiment
The glass transition temperature of PC is 150 DEG C, flow temperature 230 DEG C, and the temperature on pre-hot-rolling 3 surface is heated to 180 DEG C, additionally, make
The temperature on mould roller 4 surface is heated near the flow temperature of PC, is set to 220 DEG C in the present embodiment.
After roll-in starts, thickness is that the PC thin film 2 of 200 μm spreads out of from let off roll 1, enters pre-hot-rolling 3 and the first base band passes
Sending between wheel 6, pre-hot-rolling 3 presses to belt wheel 6 under cylinder pressure effect, makes PC thin film 2 fit with base band 8, and base band uses tool
Prepared by the stainless sheet steel having certain flexibility, at 180 DEG C, hot pressing can make to realize between PC thin film 2 and rustless steel base band 8 consolidating
Adhesion, complete the preheating to PC thin film 2 so that it is be viscoelastic state from glassy transition simultaneously.
After above-mentioned preheating and laminating process complete, PC thin film 2 and base band 8 be transferred into mould roller 4 and pressure roll 5 it
Between, roller pressure bringing device 11 promotes pressure roll supporting 9 to slide to mould roller 4 direction under the effect of hydraulic cylinder so that pressure
Roller 5 presses to mould roller 4, and meanwhile, mechanical vibration made on the applying direction of roller pressure by supersonic vibration assembly 10, and frequency of vibration is
30kHz, vibration amplitude is 5 μm, and initiation pressure roller 5 makees the mechanical vibration of same frequency and amplitude in the corresponding direction.
PC thin film 2 starts to warm up melted after contacting with the mould roller 4 at 220 DEG C, and opens under the pressure effect of pressure roll 5
Type is filled in beginning flowing, meanwhile, and the PC material that the mechanical vibration of pressure roll are sent between mould roller 4 and pressure roll 5 by base band 8,
Owing to this part PC material has been preheated to viscoelastic state, ultrasound wave causes viscoelasticity heat during transmitting therein,
Accelerate the melted of PC material and fill type flowing.
Owing to mould roller 4 is fixed in frame, and the modulus between melted PC material and mould roller 4 differs huge, super
The vibration of sonic vibration assembly 10 can not cause mould roller 4 to make the mechanical vibration synchronized, and therefore, has been flowed into the PC material in die cavity
And dither ground relative motion will be produced between die cavity wall, this dither ground relative motion be significantly reduced material with
Adhesion between mould, and promote the discharge of residual gas in die cavity.
Under the auxiliary of supersonic vibration, the cavity filling process of volume to volume hot-rolling impressing is rapidly completed, and base band 8 is with shaping surface
The polymer film product 13 having micro nano structure goes out from roller between mould roller 4 and pressure roll 5, and chiller 12 is to polymer thin
Film product 13 is blown and is cooled down, and owing to supersonic vibration makes the adhesion between material and mould be substantially reduced, knockout course can be relatively
Smoothly complete under fast speed, under cold air effect, be first that the micro nano structure on polymer film product 13 surface cools down rapidly
Solidification, the substrate thickness part of polymer film product 13 also is cooled subsequently so that it is and the strong adhesion turn between base band 8
Becoming faint adhesion, finally, under tensile force effect, Surface Machining has polymer film product 13 and the base of micro nano structure
Band 8 is smoothly detached, and is completed the rolling of product by wind-up roll 14.
The present embodiment also can be carried out with the device shown in Fig. 2, and Fig. 2 is the mutation of supersonic vibration arrangement, be provided with I, II,
III 3 Under Ultrasonic Vibration action rollers, can effectively increase imprint time, improve rolling formation efficiency.
Embodiment 2
In the present embodiment, polymeric material used is double layer material, select PET (polyethylene terephthalate) and
The double layer material that PVC (polrvinyl chloride) forms.
Its schematic diagram of device used is as it is shown on figure 3, wherein the rotation of let off roll 1, mould roller 4 and wind-up roll 13 is by motor
Driving, the drive roll in transmitting as volume to volume, rotating of pressure roll is driven by the motion of mould roller 4, is connected with pressure roll 5
Hydraulic cylinder can promote pressure roll 5 to press to mould roller 4.
Polymeric material 2 is by layer of PVC 15 (glass transition temperature 81 DEG C, flow temperature 160 DEG C) and pet layer 16 (glass
Change transition temperature 69 DEG C, flow temperature 250 DEG C) bonding form, wherein thickness 50 μm of layer of PVC 15, for the one-tenth of micro nano structure
Shape layer, thickness 150 μm of pet layer 16, for basal layer.
After roll-in starts, thickness is that the polymeric material 2 of 200 μm spreads out of from let off roll 1, its surface layer of PVC 15 first by
Infrared heating device 17 is preheated to 100 DEG C.Mould roller is heated to 155 DEG C in advance, has preheated post-consumer polymer material 2 and has entered mould
Between tool roller 4 and pressure roll 5, roller pressure bringing device 11 promotes pressure roll supporting 9 to mould roller 4 side under the effect of hydraulic cylinder
To slip so that pressure roll 5 presses to mould roller 4, and meanwhile, supersonic vibration assembly 10 shakes as machinery on the applying direction of roller pressure
Dynamic, frequency of vibration is 30kHz, and vibration amplitude is 5 μm, and initiation pressure roller 5 makees the machine of same frequency and amplitude in the corresponding direction
Tool vibrates.
Layer of PVC 15 on polymeric material 2 starts to warm up melted after contacting with the mould roller 4 at 155 DEG C, and at pressure roll
Starting flowing under the pressure effect of 5 and fill type, meanwhile, it is poly-that the mechanical vibration of pressure roll are sent between mould roller 4 and pressure roll 5
Laminate material, owing to this part PVC material layer 15 has been preheated to viscoelastic state, ultrasound wave draws during transmitting therein
Tacky elastic heat, accelerates the melted of PVC material layer 15 and fills type flowing, and PET material layer 16 is owing to molecule rigidity is high, viscoelasticity
Heat is few and flow temperature is far above PVC material layer, propping up as PVC material layer 15 in whole volume to volume hot-rolling moulding process
At the bottom of support group.
Owing to mould roller 4 is fixed in frame, and the modulus between melted PVC material layer 15 and mould roller 4 differs huge
Greatly, the vibration of supersonic vibration assembly 10 can not cause mould roller 4 to make the mechanical vibration synchronized, and therefore, has been flowed in die cavity
To produce dither ground relative motion between PVC material 15 and die cavity wall, this dither ground relative motion can be notable
Reduce the adhesion between material and mould, and promote the discharge of residual gas in die cavity.
Under the auxiliary of supersonic vibration, the cavity filling process of volume to volume hot-rolling impressing is rapidly completed, and shaping surface has micro-nano
The polymer film product 13 of structure goes out from roller between mould roller 4 and pressure roll 5, and chiller 12 is to polymer film product 13
Blowing and cool down, owing to supersonic vibration makes the adhesion between material and mould be substantially reduced, knockout course can be under fast speed
Smoothly completing, under cold air effect, the micro nano structure on polymer film product 13 surface cools and solidifies rapidly, with post-consumer polymer
The substrate thickness part of film product 13 also is cooled, and finally, wind-up roll 14 completes the rolling of product.
Claims (8)
1. a polymer surfaces micro nano structure volume to volume hot-rolling imprinting moulding method, it is characterised in that the method include with
Lower step:
(1) unreeling preheating: from unwinding device, polymeric material is sent to pre-hot-rolling, polymeric material is preheated to binding temperature,
Apply pressure by pre-hot-rolling to fit with base band hot pressing simultaneously；
(2) filling type: be sent between mould roller and pressure roll by the polymeric material being fitted in base band, polymeric material is through pre-
The mould roller first heated is heated to imprint temperature, fills die cavity by pressure roll effect the most again, opens supersonic vibration group simultaneously
Part, supersonic vibration has assisted cavity filling process；
(3) demoulding: polymeric material is after spreading out of between mould roller and pressure roll, and cooling is also separated from mould roller, super
Sonic vibration has assisted knockout course；
(4) rolling: after the demoulding completes, continues cooling polymeric articles, it is achieved polymeric articles separates with base band, finally receives
Volume, completes volume to volume hot-rolling imprinting moulding process.
A kind of polymer surfaces micro nano structure volume to volume hot-rolling imprinting moulding method the most according to claim 1, it is special
Levy and be, supersonic vibration be applied to mould roller and pressure roll composition on the driven voller in roller, this supersonic vibration is transmitted successively
To pressure roll supporting, pressure roll, base band and polymeric material, and act on and whole fill type and knockout course.
A kind of polymer surfaces micro nano structure volume to volume hot-rolling imprinting moulding method the most according to claim 2, it is special
Levying and be, the frequency of vibration of supersonic vibration is 20～40kHz, and vibration amplitude is 5～50 μm.
A kind of polymer surfaces micro nano structure volume to volume hot-rolling imprinting moulding method the most according to claim 1, it is special
Levying and be, described supersonic vibration assembly is made up of supersonic generator, transducer, horn and tool heads.
A kind of polymer surfaces micro nano structure volume to volume hot-rolling imprinting moulding method the most according to claim 1, it is special
Levying and be, described polymeric material is thermoplastic polymer coiled material or sheet material, and thickness is 50-500 μm.
A kind of polymer surfaces micro nano structure volume to volume hot-rolling imprinting moulding method the most according to claim 1, it is special
Levying and be, the binding temperature scope described in step (1) is more than polymeric material vitrification point 10 DEG C to below flow temperature
10℃。
A kind of polymer surfaces micro nano structure volume to volume hot-rolling imprinting moulding method the most according to claim 1, it is special
Levying and be, the imprint temperature scope described in step (2) is that below polymeric material flow temperature 10 DEG C is to above 50 DEG C.
A kind of polymer surfaces micro nano structure volume to volume hot-rolling imprinting moulding method the most according to claim 1, it is special
Levy and be, described base band be have the sheet metal strip of certain flexibility, heat-resistant polymer band or by fibre reinforced materials with
The flexible composite of toughness polymer composition.
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| CN107984776A (en) * | 2017-11-30 | 2018-05-04 | 清华大学深圳研究生院 | A kind of functional film and preparation method thereof |
| CN109551754A (en) * | 2017-09-25 | 2019-04-02 | 长春工业大学 | A kind of roll-to-roll hot nano-imprinting device of ultrasonic wave added and method |
| CN112848555A (en) * | 2021-01-07 | 2021-05-28 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Fiber metal laminate composite material and preparation method thereof |
| CN112973691A (en) * | 2021-02-25 | 2021-06-18 | 深圳大学 | Strip amorphous alloy catalyst with nano structure and preparation method and application thereof |
| CN113289837A (en) * | 2021-05-27 | 2021-08-24 | 燕山大学 | Vibration-assisted powder coating roll forming device and method |
| CN113501488A (en) * | 2021-06-15 | 2021-10-15 | 武汉大学 | Flexible substrate micro-nano structure forming device and flexible pressure sensor processing system |
| CN113561638A (en) * | 2021-07-06 | 2021-10-29 | 河南今明纸业有限公司 | Paper gilding device is adorned in connecing of steel band welt |
| CN113607310A (en) * | 2021-06-01 | 2021-11-05 | 武汉大学 | Large-scale preparation method of flexible piezoresistive sensor |
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| CN109551754A (en) * | 2017-09-25 | 2019-04-02 | 长春工业大学 | A kind of roll-to-roll hot nano-imprinting device of ultrasonic wave added and method |
| CN107984776B (en) * | 2017-11-30 | 2019-10-29 | 清华大学深圳研究生院 | A kind of functional film and preparation method thereof |
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| CN112848555B (en) * | 2021-01-07 | 2023-03-21 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Fiber metal laminate composite material and preparation method thereof |
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