CN102941725A - Polycarbonate sheet for touch screen panel as well as processing device and preparation method of polycarbonate sheet - Google Patents
Polycarbonate sheet for touch screen panel as well as processing device and preparation method of polycarbonate sheet Download PDFInfo
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- CN102941725A CN102941725A CN2012105121145A CN201210512114A CN102941725A CN 102941725 A CN102941725 A CN 102941725A CN 2012105121145 A CN2012105121145 A CN 2012105121145A CN 201210512114 A CN201210512114 A CN 201210512114A CN 102941725 A CN102941725 A CN 102941725A
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Abstract
The invention discloses a polycarbonate sheet for a touch screen panel. The polycarbonate sheet comprises a polycarbonate layer, a moth-eye-shaped projection layer is arranged on the lower surface of the polycarbonate layer, the upper surface of the polycarbonate layer is provided with a scrape resistance layer and a fingerprint prevention layer from bottom to top sequentially, and protection films are arranged on the outer surface of the fingerprint prevention layer and the outer surface of the moth-eye shaped projection layer. A processing device for processing the polycarbonate sheet comprises a three-roller calendaring device and a surface coating device. A preparation method of the polycarbonate sheet comprises the following processing steps of: preparation of concentrated antibacterial master batch; preparation of a polycarbonate film with a moth-eye-shaped surface; on-line functional treatment on the surface of the polycarbonate film; and adhesion of the protection films on the double surfaces of a finished product, and cutting and stacking of the finished product, thus finishing the processing. The polycarbonate sheet prepared by the processing device and the preparation method has a nanoscale moth-eye structure, can effectively lower visible light reflectance, and has functions of bacteria prevention, scrape resistance and fingerprint prevention; and the production efficiency is improved while the production cost is lowered.
Description
Technical field
The present invention relates to a kind of polycarbonate sheet manufacture field, relate in particular to a kind of touch panel polycarbonate sheet and processing unit (plant) and preparation method.
Background technology
The optic panel base material of the flat panel display equipments such as television set, mobile phone, palm PC, notebook computer and digital camera is made by glass material often, at high-tech under digital Age, the trend development such as display is just high towards definition, display area is large, lightweight, thin thickness.The glass material excellent in optical properties, but specific gravity of glass is large, erosion-resisting characteristics is relatively not good, and especially large-size glass easily produces defective because of bump again.For so that face glass reaches certain erosion-resisting characteristics, glass substrate is generally thicker, causes its quality larger, does not meet the development trend of present flat-panel monitor slimming, lightness.In order to solve above-mentioned contradiction, both at home and abroad flat panel display equipment manufacturer now adopt has relative low price, the optics high-molecular organic material (such as Merlon, polymethyl methacrylate etc.) of lightweight, excellent shock resistance is as the base material of display floater.
Merlon (Polycarbonate, PC) is the colourless thermoplastic engineering plastic of a kind of unformed, odorless, nontoxic, highly transparent, has good physical and mechanical properties, and its impact strength, hot strength, bending strength, compressive strength are high; Creep resistant is little; Have good heat resistance and lower temperature resistance, can be-60～120 ℃ of lower long-term uses; Electrical property and anti-flammability are good; Water absorption rate is little; Shrinkage factor is little; Banana is little; Light transmittance is more than 90%, so PC is very suitable to optical element material.But poly-carbonic acid scratch resistant performance is relatively poor, does when panel uses and need to improve its surface scratch resistance.In addition, the consumer is more and more higher for the requirement of flat panel display equipment, need to have anti-fingerprint, antireflection, the function such as antibiotic, so require the display floater base material to prevent fingerprint, antireflection, the functionalization such as antibiotic.
The general off-line mode that adopts discontinuous formula of traditional polycarbonate surface functionalization, the polycarbonate sheet of namely producing are transported to downstream producer or other production equipments carry out surface-functionalized processing after cutting into the suitable dimension size.Cause like this production, transportation and human capital higher.At present, enterprise more and more tends to carry out online surface-functionalized processing with crossing scrap build both at home and abroad, reduces cost, belt-tightening purpose thereby reach.
1962, moth eye (moth-eye) effect found by people such as G.G. Bernhard and W.H. Miller, and the biological high very high Infravision that has of the lepidopteras such as worm, moth all has regularly arranged raised structures on its cornea.Moth eye shape film refers to that film surface is with the structural diaphragm of the thrust of nano level regular arrangement; This diaphragm with pop-up structure because the refractive index along thickness direction is that continuity changes, makes the incident light that is radiated on the diaphragm substantially can not produce reflection.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of touch panel polycarbonate sheet and processing unit (plant) and preparation method, the function of antibiotic, low reflection that its prepared polycarbonate sheet has, scratch resistance, anti-fingerprint.
In order to solve the problems of the technologies described above; the present invention is achieved by the following technical solutions: a kind of touch panel polycarbonate sheet; comprise layer of polycarbonate; described layer of polycarbonate lower surface is provided with moth eye shape protuberance layer; upper surface is disposed with anti scuffing layer and anti-fingerprint layer from bottom to top, and described anti-fingerprint layer and moth eye shape protuberance layer outer surface are provided with diaphragm.
A kind of touch panel device for processing polycarbonate sheets prolongs device and surface coating device consists of by three roll-ins; Described three roll-ins are prolonged device and are comprised of drive roll, intermediate calender rolls and driven voller, and drive roll, intermediate calender rolls and driven voller are arranged in order, between be provided with gap with prepared polycarbonate film consistency of thickness; Described surface coating device is comprised of apparatus for coating, ultra redray drier and UV solidification equipment, and apparatus for coating, ultra redray drier and UV solidification equipment are arranged in order.
Preferably, described surface coating device two ends respectively are provided with one for delivery of the deflector roll that is prolonged the polycarbonate film that device prepares by three roll-ins.
Preferably, described drive roll surface array has the identical anti-moth eye pit of some sizes, and described anti-moth eye pit depth is 100～150nm, and diameter is 50～100nm, and the spacing between each anti-moth eye pit is 50～100nm.
Preferably, described intermediate calender rolls and driven voller are the chromium plating mirror roller.
A kind of touch panel POLYCARBONATE SHEET material, preparation method is made by following technique: the preparation of the concentrated antibacterial matrices of a.; B. the preparation of surperficial moth eye shape polycarbonate film; C. the online surface-functionalized processing of polycarbonate film; D. at final products Double-face adhesive diaphragm, then cutting, stacking are finished processing.
Preferably, the process of preparing of the concentrated antibacterial matrices of described step a is as follows: taking by weighing proportion is that the Merlon powder of 90wt% and the antiseptic of 10wt% mix, then mixed raw material is thrown in parallel dual-screw extruding machine, through melt extruding, cooling off, be a granulated into concentrated antibacterial matrices.
Preferably, the melt flow rate (MFR) of described Merlon powder is 12～15g/10min, and antiseptic is organic antibacterial agent, and the double screw extruder processing temperature is 220 ℃～330 ℃.
Preferably, the preparation technology of described step b surface moth eye shape polycarbonate film is as follows: taking by weighing proportion is the polycarbonate pc particle of 90wt% and the concentrated antibacterial matrices of 10wt%, and 100 ℃～130 ℃ of each leisures are lower dry 2～4 hours, then mix, described polycarbonate pc particle melt flow rate (MFR) is 8～12g/10min, then mixed raw material particle is added in the single screw extrusion machine and carry out fusion plastification, the melt that plasticizing is good enters three roll-ins through die head and prolongs device, makes the polycarbonate film that the surface has moth eye-tubercle layer.
Preferably, the surface-functionalized treatment process of the online polycarbonate film of described step c is as follows: prolong the polycarbonate film of device preparation behind cooling and shaping by three roll-ins, be input to surface coating device by deflector roll, apparatus for coating on the surface coating device at first is coated with polycarbonate film showering, roller coat or crack as required, then remove the solvent that is coated on coating fluid on the polycarbonate film surface by ultra redray drier, by the UV solidification equipment the lip-deep coating fluid of polycarbonate film is solidified at last.
Compared with prior art, usefulness of the present invention is: this touch panel has nano level moth ocular structure with device for processing polycarbonate sheets and the prepared polycarbonate sheet of preparation method, can effectively reduce the visible reflectance of polycarbonate sheet, so that the visible light transmissivity of polycarbonate sheet reaches more than 99%, simultaneously because polycarbonate sheet has antibacterial functions, and the surface has anti-scratch layer and anti-fingerprint layer, can enable effective application in various touch-screens field; In addition, the online surface-functionalized processing mode of polycarbonate sheet has improved production efficiency, has reduced production cost.
Description of drawings:
Accompanying drawing 1 is a kind of touch panel of the present invention polycarbonate sheet structural representation;
Fig. 2 is that the apparatus structure schematic diagram is prolonged in three roll-ins;
Fig. 3 is intermediate calender rolls surface structure schematic diagram among Fig. 2;
Fig. 4 is the surface coating device structural representation.
Among the figure: 1, diaphragm; 2, anti-fingerprint layer; 3, anti scuffing layer; 4, layer of polycarbonate; 5, moth eye shape protuberance layer; 6, die head; 61, drive roll; 62, intermediate calender rolls; 63, driven voller; 7, surface coating device; 71, apparatus for coating; 72, ultra redray drier; 73, UV solidification equipment; 8, deflector roll; 9, polycarbonate film.
The specific embodiment:
Describe the present invention below in conjunction with the drawings and specific embodiments.
A kind of touch panel polycarbonate sheet shown in Figure 1; comprise layer of polycarbonate 4; described layer of polycarbonate 4 lower surfaces are provided with moth eye shape protuberance layer 5; upper surface is disposed with anti scuffing layer 3 and anti-fingerprint layer 2 from bottom to top, and described anti-fingerprint layer 2 and moth eye shape protuberance layer 5 outer surfaces are provided with diaphragm 1.
Fig. 2, Fig. 3 and a kind of touch panel device for processing polycarbonate sheets shown in Figure 4 prolong device and surface coating device 7 consists of by three roll-ins; Described three roll-ins are prolonged device and are comprised of drive roll 61, intermediate calender rolls 62 and driven voller 63, drive roll 61, intermediate calender rolls 62 and driven voller 63 are arranged in order, between be provided with gap with prepared polycarbonate film 9 consistency of thickness, described drive roll 61 surface arrays have the identical anti-moth eye pit 621 of some sizes, described anti-moth eye pit 621 degree of depth are 100～150nm, diameter is 50～100nm, spacing between each anti-moth eye pit 621 is 50～100nm, and intermediate calender rolls 62 and driven voller 63 are the chromium plating mirror roller; Described surface coating device 7 is comprised of apparatus for coating 71, ultra redray drier 72 and UV solidification equipment 73, and apparatus for coating 71, ultra redray drier 72 and UV solidification equipment 73 are arranged in order; Surface coating device 7 two ends respectively are provided with one for delivery of the deflector roll 8 that is prolonged the polycarbonate film 9 that device prepares by three roll-ins.
Described this touch panel comprises following processing step with the POLYCARBONATE SHEET material, preparation method:
A. the preparation of concentrated antibacterial matrices;
Taking by weighing proportion is that the Merlon powder of 90wt% and the antiseptic of 10wt% mix, and then mixed raw material is thrown in parallel dual-screw extruding machine, through melt extruding, cooling off, is a granulated into concentrated antibacterial matrices.In order to guarantee that antibacterial matrices can finely be dispersed in the final polycarbonate substrate, the melt flow rate (MFR) of described Merlon powder is 12～15g/10min; In order to guarantee that final products have the good transparency, described antiseptic is organic antibacterial agent; Concentrated in order to guarantee that Merlon powder and antiseptic can effectively mix, described double screw extruder processing temperature is 220 ℃～330 ℃.
B. the preparation of surperficial moth eye shape polycarbonate film;
Mixed raw material is thrown in parallel dual-screw extruding machine, through melt extruding, cooling off, be a granulated into concentrated antibacterial matrices, that smooth antibacterial matrices can finely be dispersed in the final polycarbonate substrate
Taking by weighing proportion is the polycarbonate pc particle of 90wt% and the concentrated antibacterial matrices of 10wt%, and 100 ℃～130 ℃ of each leisures are lower dry 2～4 hours, then mix, in order to ensure concentrated antibacterial matrices and polycarbonate pc particle good compatibility is arranged, described polycarbonate pc particle melt flow rate (MFR) is 8～12g/10min, then mixed raw material particle is added in the single screw extrusion machine and carry out fusion plastification, the melt that plasticizing is good enters three roll-ins through die head 6 and prolongs device, makes the polycarbonate film 9 that the surface has moth eye-tubercle layer 5.
C. the online surface-functionalized processing of polycarbonate film;
Prolong the polycarbonate film 9 of device preparation behind cooling and shaping by three roll-ins, be input to surface coating device 7 by deflector roll 8, apparatus for coating 71 on the surface coating device 7 at first is coated with polycarbonate film 9 showerings, roller coat or crack as required, then remove the solvent that is coated on the upper coating fluid in polycarbonate film 9 surfaces by ultra redray drier 72, by UV solidification equipment 73 polycarbonate film 9 lip-deep coating fluids are solidified at last.
D. at final products Double-face adhesive diaphragm 1, then cutting, stacking are finished processing.
This touch panel has scratch resistance, anti-fingerprint function with the polycarbonate sheet surface, so need successively finger prints processing to be hardened, prevents on the polycarbonate sheet surface, therefore need to add on the production line two cover surface coating devices 7 and realize that harden in the polycarbonate sheet surface and the anti-finger prints processing in surface.
This touch panel has nano level moth ocular structure with device for processing polycarbonate sheets and the prepared polycarbonate sheet of preparation method, can effectively reduce the visible reflectance of polycarbonate sheet, so that the visible light transmissivity of polycarbonate sheet reaches more than 99%, simultaneously because polycarbonate sheet has antibacterial functions, and the surface has anti-scratch layer 3 and anti-fingerprint layer 2, can enable effective application in various touch-screens field; In addition, the online surface-functionalized processing mode of polycarbonate sheet has improved production efficiency, has reduced production cost.
The present invention adopts Merlon to use as base material, and the materials such as other transparent macromolecular materials such as polymethyl methacrylate (PMMA), polystyrene (PS), PETG (PET) all belong to protection domain of the present invention.
It is emphasized that: above only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment does.
Claims (10)
1. touch panel polycarbonate sheet; it is characterized in that; comprise layer of polycarbonate (4); described layer of polycarbonate (4) lower surface is provided with moth eye shape protuberance layer (5); upper surface is disposed with anti scuffing layer (3) and anti-fingerprint layer (2) from bottom to top, and described anti-fingerprint layer (2) and moth eye shape protuberance layer (5) outer surface are provided with diaphragm (1).
2. a touch panel device for processing polycarbonate sheets is characterized in that, prolongs device and surface coating device (7) formation by three roll-ins; Described three roll-ins are prolonged device and are comprised of drive roll (61), intermediate calender rolls (62) and driven voller (63), drive roll (61), intermediate calender rolls (62) and driven voller (63) are arranged in order, between be provided with gap with prepared polycarbonate film (9) consistency of thickness; Described surface coating device (7) is comprised of apparatus for coating (71), ultra redray drier (72) and UV solidification equipment (73), and apparatus for coating (71), ultra redray drier (72) and UV solidification equipment (73) are arranged in order.
3. touch panel device for processing polycarbonate sheets according to claim 2 is characterized in that, described surface coating device (7) two ends respectively are provided with one for delivery of the deflector roll (8) that is prolonged the polycarbonate film (9) that device prepares by three roll-ins.
4. touch panel device for processing polycarbonate sheets according to claim 2, it is characterized in that, described drive roll (61) surface array has the identical anti-moth eye pit (621) of some sizes, described anti-moth eye pit (621) degree of depth is 100～150nm, diameter is 50～100nm, and the spacing between each anti-moth eye pit (621) is 50～100nm.
5. touch panel device for processing polycarbonate sheets according to claim 2, it is characterized in that: described intermediate calender rolls (62) and driven voller (63) are the chromium plating mirror roller.
6. a touch panel POLYCARBONATE SHEET material, preparation method is characterized in that, makes by following technique: the preparation of the concentrated antibacterial matrices of a.; B. the preparation of surperficial moth eye shape polycarbonate film; C. the online surface-functionalized processing of polycarbonate film; D. at final products Double-face adhesive diaphragm (1), then cutting, stacking are finished processing.
7. touch panel according to claim 6 POLYCARBONATE SHEET material, preparation method, it is characterized in that, the process of preparing of the concentrated antibacterial matrices of described step (a) is as follows: taking by weighing proportion is that the Merlon powder of 90wt% and the antiseptic of 10wt% mix, then mixed raw material is thrown in parallel dual-screw extruding machine, through melt extruding, cooling off, be a granulated into concentrated antibacterial matrices.
8. touch panel according to claim 7 POLYCARBONATE SHEET material, preparation method, it is characterized in that, the melt flow rate (MFR) of described Merlon powder is 12～15g/10min, and antiseptic is organic antibacterial agent, and the double screw extruder processing temperature is 220 ℃～330 ℃.
9. according to touch panel claimed in claim 6 POLYCARBONATE SHEET material, preparation method, it is characterized in that, the preparation technology of the surperficial moth eye of described step (b) shape polycarbonate film is as follows: taking by weighing proportion is the polycarbonate pc particle of 90wt% and the concentrated antibacterial matrices of 10wt%, and 100 ℃～130 ℃ of each leisures are lower dry 2～4 hours, then mix, described polycarbonate pc particle melt flow rate (MFR) is 8～12g/10min, then mixed raw material particle is added in the single screw extrusion machine and carry out fusion plastification, the melt that plasticizing is good enters three roll-ins through die head (6) and prolongs device, makes the polycarbonate film (9) that the surface has moth eye-tubercle layer (5).
10. according to touch panel claimed in claim 6 POLYCARBONATE SHEET material, preparation method, it is characterized in that, the online surface-functionalized treatment process of polycarbonate film of described step (c) is as follows: prolong the polycarbonate film (9) of device preparation behind cooling and shaping by three roll-ins, be input to surface coating device (7) by deflector roll (8), apparatus for coating (71) on the surface coating device (7) is as required at first to polycarbonate film (9) showering, roller coat or crack are coated with, then remove the solvent that is coated on coating fluid on polycarbonate film (9) surface by ultra redray drier (72), by UV solidification equipment (73) the lip-deep coating fluid of polycarbonate film (9) is solidified at last.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012105121145A CN102941725A (en) | 2012-12-04 | 2012-12-04 | Polycarbonate sheet for touch screen panel as well as processing device and preparation method of polycarbonate sheet |
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| CN2012105121145A CN102941725A (en) | 2012-12-04 | 2012-12-04 | Polycarbonate sheet for touch screen panel as well as processing device and preparation method of polycarbonate sheet |
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| CN102941725A true CN102941725A (en) | 2013-02-27 |
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| JP2003302532A (en) * | 2002-04-12 | 2003-10-24 | Mitsubishi Chemicals Corp | Polarizing plate and method for manufacturing the same |
| CN101544087A (en) * | 2008-03-25 | 2009-09-30 | 住友化学株式会社 | Scratch-resistant resin plate and use thereof |
| CN101941316A (en) * | 2009-02-09 | 2011-01-12 | 住友化学株式会社 | Touch panel is with stacked extruded resin sheet and the surperficial coated panel of touch panel |
| CN102122007A (en) * | 2010-12-02 | 2011-07-13 | 苏州奥美材料科技有限公司 | Low-reflection polycarbonate film, preparation device thereof and preparation method thereof |
| CN202079868U (en) * | 2010-12-21 | 2011-12-21 | 苏州禾盛新型材料股份有限公司 | Antifouling, anti-fingerprint and anti-Newton's ring transparent conductive composite board |
| CN203063231U (en) * | 2012-12-04 | 2013-07-17 | 苏州奥美材料科技有限公司 | Polycarbonate sheet material processing device for touch screen panel |
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2012
- 2012-12-04 CN CN2012105121145A patent/CN102941725A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003302532A (en) * | 2002-04-12 | 2003-10-24 | Mitsubishi Chemicals Corp | Polarizing plate and method for manufacturing the same |
| CN101544087A (en) * | 2008-03-25 | 2009-09-30 | 住友化学株式会社 | Scratch-resistant resin plate and use thereof |
| CN101941316A (en) * | 2009-02-09 | 2011-01-12 | 住友化学株式会社 | Touch panel is with stacked extruded resin sheet and the surperficial coated panel of touch panel |
| CN102122007A (en) * | 2010-12-02 | 2011-07-13 | 苏州奥美材料科技有限公司 | Low-reflection polycarbonate film, preparation device thereof and preparation method thereof |
| CN202079868U (en) * | 2010-12-21 | 2011-12-21 | 苏州禾盛新型材料股份有限公司 | Antifouling, anti-fingerprint and anti-Newton's ring transparent conductive composite board |
| CN203063231U (en) * | 2012-12-04 | 2013-07-17 | 苏州奥美材料科技有限公司 | Polycarbonate sheet material processing device for touch screen panel |
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Application publication date: 20130227 |