CN101067025A - Polymethyl methacrylate base plate for flexible display and its prepn - Google Patents
Polymethyl methacrylate base plate for flexible display and its prepn Download PDFInfo
- Publication number
- CN101067025A CN101067025A CN200710023551.XA CN200710023551A CN101067025A CN 101067025 A CN101067025 A CN 101067025A CN 200710023551 A CN200710023551 A CN 200710023551A CN 101067025 A CN101067025 A CN 101067025A
- Authority
- CN
- China
- Prior art keywords
- flexible display
- polymethyl methacrylate
- base plate
- methacrylate base
- pmma
- 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
Links
- 229920003229 poly(methyl methacrylate) Polymers 0.000 title claims abstract description 65
- 239000004926 polymethyl methacrylate Substances 0.000 title claims abstract description 65
- 239000004793 Polystyrene Substances 0.000 claims abstract description 25
- 229920002223 polystyrene Polymers 0.000 claims abstract description 24
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 150000001412 amines Chemical class 0.000 claims abstract description 10
- 238000005266 casting Methods 0.000 claims abstract description 10
- 238000002360 preparation method Methods 0.000 claims description 15
- 239000006096 absorbing agent Substances 0.000 claims description 11
- 239000004611 light stabiliser Substances 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 5
- 239000012964 benzotriazole Substances 0.000 claims description 4
- 238000002834 transmittance Methods 0.000 claims description 3
- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000003723 Smelting Methods 0.000 abstract 1
- 230000002195 synergetic effect Effects 0.000 abstract 1
- 239000012801 ultraviolet ray absorbent Substances 0.000 abstract 1
- 238000004383 yellowing Methods 0.000 abstract 1
- 239000000758 substrate Substances 0.000 description 23
- XITRBUPOXXBIJN-UHFFFAOYSA-N bis(2,2,6,6-tetramethylpiperidin-4-yl) decanedioate Chemical compound C1C(C)(C)NC(C)(C)CC1OC(=O)CCCCCCCCC(=O)OC1CC(C)(C)NC(C)(C)C1 XITRBUPOXXBIJN-UHFFFAOYSA-N 0.000 description 12
- MCPKSFINULVDNX-UHFFFAOYSA-N drometrizole Chemical compound CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MCPKSFINULVDNX-UHFFFAOYSA-N 0.000 description 6
- 230000032683 aging Effects 0.000 description 5
- -1 2,2,6,6-tetramethyl piperidine ester Chemical class 0.000 description 3
- SWZOQAGVRGQLDV-UHFFFAOYSA-N 4-[2-(4-hydroxy-2,2,6,6-tetramethylpiperidin-1-yl)ethoxy]-4-oxobutanoic acid Chemical compound CC1(C)CC(O)CC(C)(C)N1CCOC(=O)CCC(O)=O SWZOQAGVRGQLDV-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- RKMGAJGJIURJSJ-UHFFFAOYSA-N 2,2,6,6-Tetramethylpiperidine Substances CC1(C)CCCC(C)(C)N1 RKMGAJGJIURJSJ-UHFFFAOYSA-N 0.000 description 1
- RYAIMSPHUVXLQI-UHFFFAOYSA-N 4-(aminomethyl)-2-(benzotriazol-2-yl)phenol Chemical compound NCC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 RYAIMSPHUVXLQI-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 125000001973 tert-pentyl group Chemical group [H]C([H])([H])C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The polymethyl methacrylate base plate for flexible display is produced with polymethyl methacrylate 89-96 wt%, ultraviolet ray absorbent/ hindered amine synergistic system 1-3 wt%, and polystyrene 3-8 wt%, and through mixing, smelting the mixture at 210-260 deg.c, extruding and flow casting to form the polymethyl methacrylate base plate for flexible display. The polymethyl methacrylate base plate has 2000 hr yellowing index smaller than 0.5, surface smoothness within 2 nm RMS, thickness of 50-300 micron and heat resisting temperature up to 90 deg.c. The production process has high production efficiency, low power consumption, low cost and stable product quality.
Description
Technical field
The present invention relates to macromolecular material of a kind of modification and preparation method thereof, modification of particularly a kind of polymethylmethacrylate (PMMA) and preparation method thereof.
Background technology
Flexible display is meant can folding, crooked indicating meter.It is the indicating meter of new generation after liquid-crystal display (LCD) and plasma display (PDP).Flexible display has flexible, characteristic such as thin, light, shock-resistant, can be widely used in e-book, notice board, label etc., is particularly useful for portable product, and as new " form " of information age, flexible display receives much attention.Plastic base is the important optical component in the indicating meter.For the used plastic base of flexible display, it has high transmission rate, good ageing-resistant performance, higher dimensional stability and flexible etc.
Summary of the invention
Goal of the invention: the purpose of this invention is to provide the PMMA substrate that a kind of flexible display is used, another purpose of the present invention provides a kind of preparation method of PMMA substrate.
Technical scheme: the objective of the invention is to be achieved through the following technical solutions:
A kind of flexible display PMMA substrate, it is characterized in that described PMMA baseplate material comprises PMMA, UV light absorber/hindered amine light stabilizer collaboration system, polystyrene (PS), its weight proportion is: PMMA 89～96%, UV light absorber/hindered amine light stabilizer collaboration system 3～1%, PS8～3%.
Described UV light absorber is a benzotriazole system, and the weight ratio of UV light absorber and hindered amine light stabilizer is 2/1～5/1.
A kind of flexible display preparation method of PMMA substrate is characterized in that it may further comprise the steps:
1, PMMA, UV light absorber/hindered amine light stabilizer collaboration system, PS are mixed in proportion;
2, the mixture that will obtain by step (1) by forcing machine melt extrude, flow casting molding obtains flexible display PMMA substrate.
The life-span of PMMA substrate and the life-span of indicating meter should be complementary, and require under 2000 hours condition of artificial accelerated aging, and the xanthochromia index is less than 0.5, but pure PMMA material can not meet this requirement itself.On the basis of different additive to spectrographic absorption and shielding effect research, consider the influence of different additive simultaneously, determine to adopt UV light absorber/hindered amine light stabilizer collaboration system and PS that PMMA is carried out modification PMMA substrate transmittance, briliancy, surface flatness etc.Guaranteeing that the modified PMMA material satisfies the high transmission rate (＞90%) of substrate, ageing-resistant performance (under 2000 hours condition of artificial accelerated aging, the xanthochromia index is less than 0.5) under the prerequisite, reach the product surface slickness below 2nm RMS and high dimension stability.
Beneficial effect: flexible display has dimensional stability and flexible under high transmission rate, ageing-resistant, surface flatness, the high temperature with the PMMA substrate, can be applicable to flexible display.Simultaneously, this preparation method production efficiency height, energy consumption is low, cost is low, steady quality.
Embodiment
Below by embodiment the present invention is specifically described, be necessary to be pointed out that at this, following examples only are used for the present invention is further specified, and can not be interpreted as limiting the scope of the invention.
Embodiment 1:
A kind of flexible display of the present invention PMMA substrate, its component, proportioning and preparation method are as follows:
1, with PMMA, 2-(2 '-hydroxyl-the 3 '-tertiary butyl-5 '-aminomethyl phenyl)-5-chloro-benzotriazole (UV-326)/sebacic acid two (2,2,6,6-tetramethyl piperidine ester) (Tinuvin 770), PS are mixed in proportion, its proportioning (weight ratio) is: PMMA is 92%, UV-326/Tinuvin 770 is 1%, and PS is 7%.The transmittance of used PMMA is greater than 92%.Wherein UV-326/Tinuvin 770 (weight ratio) is 5/1, and PS is a crosslinked polystyrene.
2, the mixture that step 1 is obtained, under 210 ℃ with forcing machine melt extrude, flow casting molding obtains flexible display PMMA substrate.
Embodiment 2:
Another kind of flexible display of the present invention PMMA substrate, its component, proportioning and preparation method are as follows:
1, PMMA, UV-326/Tinuvin 770, PS are mixed in proportion, its proportioning (weight ratio) is: PMMA is 94%, and UV-326/Tinuvin 770 is 3%, and PS is 3%.Wherein UV-326/Tinuvin 770 (weight ratio) is 2/1.
2, the mixture that step 1 is obtained, under 260 ℃ with forcing machine melt extrude, flow casting molding obtains flexible display PMMA substrate.
Embodiment 3:
Another kind of flexible display of the present invention PMMA substrate, its component, proportioning and preparation method are as follows:
1, with PMMA, 2-(2 '-hydroxyl-5 '-aminomethyl phenyl)-benzotriazole (UV-P)/poly--(N-beta-hydroxyethyl-2,2,6,6-tetramethyl--4-oxygen-piperidyl succinate) (Tinuvin 622), PS are mixed in proportion, its proportioning (weight ratio) is: PMMA is 91%, UV-P/Tinuvin 622 is 2%, and PS is 7%.Wherein UV-P/Tinuvin622 (weight ratio) is 3/1.
2, the mixture that step 1 is obtained, under 240 ℃ with forcing machine melt extrude, flow casting molding obtains flexible display PMMA substrate.
Embodiment 4:
Another kind of flexible display of the present invention PMMA substrate, its component, proportioning and preparation method are as follows:
1, PMMA, UV-P/Tinuvin 770, PS are mixed in proportion, its proportioning (weight ratio) is: PMMA is 93%, and UV-P/Tinuvin 770 is 3%, and PS is 4%.Wherein UV-P/Tinuvin 770 (weight ratio) is 3/1.
2, the mixture that step 1 is obtained, under 230 ℃ with forcing machine melt extrude, flow casting molding obtains flexible display PMMA substrate.
Embodiment 5:
Another kind of flexible display of the present invention PMMA substrate, its component, proportioning and preparation method are as follows:
1, PMMA, 2-(2 '-hydroxyl-5 '-uncle's octyl phenyl)-benzotriazole (UV-329)/Tinuvin 770, PS is mixed in proportion, its proportioning (weight ratio) is: PMMA is 93%, and UV-329/Tinuvin 770 is 2%, and PS is 5%.Wherein UV-329/Tinuvin 770 (weight ratio) is 4/1.
2, the mixture that step 1 is obtained, under 220 ℃ with forcing machine melt extrude, flow casting molding obtains flexible display PMMA substrate.
Embodiment 6:
Another kind of flexible display of the present invention PMMA substrate, its component, proportioning and preparation method are as follows:
1, with PMMA, UV-329/4-benzoyloxy-2,2,6,6-tetramethyl piperidine ester (Tinuvin 744), PS are mixed in proportion, and its proportioning (weight ratio) is: PMMA is 96%, and UV-329/Tinuvin 744 is 1%, and PS is 3%.Wherein UV-329/Tinuvin 744 (weight ratio) is 2/1.
2, the mixture that step 1 is obtained, under 250 ℃ with forcing machine melt extrude, flow casting molding obtains flexible display PMMA substrate.
Embodiment 7:
Another kind of flexible display of the present invention PMMA substrate, its component, proportioning and preparation method are as follows:
1, with PMMA, 2-(2 '-hydroxyl-3 ', 5 '-two tert-pentyls)-benzotriazole (UV-328)/Tinuvin 744), PS is mixed in proportion, its proportioning (weight ratio) is: PMMA is 89%, UV-328/Tinuvin 744 is 3%, PS is 8%.Wherein UV-328/Tinuvin 744 (weight ratio) is 5/1.
2, the mixture that step 1 is obtained, under 230 ℃ with forcing machine melt extrude, flow casting molding obtains flexible display PMMA substrate.
Claims (7)
1, a kind of polymethyl methacrylate base plate for flexible display, it is characterized in that described polymethyl methacrylate base plate material comprises polymethylmethacrylate, UV light absorber/hindered amine light stabilizer collaboration system, polystyrene, its weight proportion is: polymethylmethacrylate 89～96%, UV light absorber/hindered amine light stabilizer collaboration system 3～1%, polystyrene 8～3%.
2, polymethyl methacrylate base plate for flexible display according to claim 1, the transmittance that it is characterized in that described polymethylmethacrylate is greater than 92%.
3, polymethyl methacrylate base plate for flexible display according to claim 1 is characterized in that described UV light absorber is a benzotriazole system.
4, according to claim 1 or 3 described polymethyl methacrylate base plate for flexible display, the weight ratio that it is characterized in that UV light absorber and hindered amine light stabilizer is 2/1～5/1.
5, polymethyl methacrylate base plate for flexible display according to claim 1 is characterized in that described polystyrene is a crosslinked polystyrene.
6, a kind of preparation method of polymethyl methacrylate base plate for flexible display is characterized in that it may further comprise the steps:
(1) polymethylmethacrylate, UV light absorber/hindered amine light stabilizer collaboration system, polystyrene are mixed in proportion;
(2) mixture that step (1) is obtained by forcing machine melt extrude, flow casting molding obtains polymethyl methacrylate base plate for flexible display.
7, the preparation method of polymethyl methacrylate base plate for flexible display according to claim 6 is characterized in that mixture melt extrudes in the step (2) under 210-260 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710023551.XA CN100526368C (en) | 2007-06-07 | 2007-06-07 | Polymethyl methacrylate base plate for flexible display and its preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710023551.XA CN100526368C (en) | 2007-06-07 | 2007-06-07 | Polymethyl methacrylate base plate for flexible display and its preparation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101067025A true CN101067025A (en) | 2007-11-07 |
| CN100526368C CN100526368C (en) | 2009-08-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710023551.XA Expired - Fee Related CN100526368C (en) | 2007-06-07 | 2007-06-07 | Polymethyl methacrylate base plate for flexible display and its preparation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100526368C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102683379A (en) * | 2011-03-10 | 2012-09-19 | 三星移动显示器株式会社 | Flexible display device and manufacturing method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1166694C (en) * | 2002-06-28 | 2004-09-15 | 清华大学 | Method for preparing plasticized flexible high-brightness nano projection display screen material |
| FR2852963A1 (en) * | 2003-03-26 | 2004-10-01 | Atofina | Acrylic film for use e.g. for in-mould decoration, comprises a methacrylic/acrylic block copolymer made by radical polymerisation in presence of an alkoxyamine derived from a sterically-hindered nitroxide |
-
2007
- 2007-06-07 CN CN200710023551.XA patent/CN100526368C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102683379A (en) * | 2011-03-10 | 2012-09-19 | 三星移动显示器株式会社 | Flexible display device and manufacturing method thereof |
| CN102683379B (en) * | 2011-03-10 | 2016-05-11 | 三星显示有限公司 | Flexible display apparatus and manufacture method thereof |
| US9614190B2 (en) | 2011-03-10 | 2017-04-04 | Samsung Display Co., Ltd. | Flexible display device and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100526368C (en) | 2009-08-12 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20090812 Termination date: 20160607 |