TWI289507B - Laminated polyester film and laminated thin film - Google Patents
Laminated polyester film and laminated thin film Download PDFInfo
- Publication number
- TWI289507B TWI289507B TW92114936A TW92114936A TWI289507B TW I289507 B TWI289507 B TW I289507B TW 92114936 A TW92114936 A TW 92114936A TW 92114936 A TW92114936 A TW 92114936A TW I289507 B TWI289507 B TW I289507B
- Authority
- TW
- Taiwan
- Prior art keywords
- film
- laminated
- refractive index
- laminated polyester
- polyester
- Prior art date
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- 229920006267 polyester film Polymers 0.000 title claims abstract description 50
- 239000010409 thin film Substances 0.000 title claims abstract 4
- 239000010408 film Substances 0.000 claims abstract description 186
- 239000011247 coating layer Substances 0.000 claims abstract description 58
- 229920000728 polyester Polymers 0.000 claims abstract description 36
- 239000010419 fine particle Substances 0.000 claims abstract description 15
- 239000010410 layer Substances 0.000 claims description 94
- 230000004888 barrier function Effects 0.000 claims description 35
- 239000000853 adhesive Substances 0.000 claims description 26
- 230000001070 adhesive effect Effects 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 24
- 229920000642 polymer Polymers 0.000 claims description 23
- 239000000758 substrate Substances 0.000 claims description 21
- 229920000178 Acrylic resin Polymers 0.000 claims description 20
- 239000004925 Acrylic resin Substances 0.000 claims description 20
- 230000006378 damage Effects 0.000 claims description 16
- 238000002834 transmittance Methods 0.000 claims description 15
- 239000011859 microparticle Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- 229920001225 polyester resin Polymers 0.000 claims description 11
- 239000004645 polyester resin Substances 0.000 claims description 11
- 150000002148 esters Chemical class 0.000 claims description 10
- 238000005401 electroluminescence Methods 0.000 claims description 7
- 125000003504 2-oxazolinyl group Chemical group O1C(=NCC1)* 0.000 claims description 6
- 229920002554 vinyl polymer Polymers 0.000 claims description 4
- 230000010070 molecular adhesion Effects 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 229920005596 polymer binder Polymers 0.000 abstract 2
- 239000002491 polymer binding agent Substances 0.000 abstract 2
- 230000035939 shock Effects 0.000 abstract 1
- -1 polyisophthalate Polymers 0.000 description 51
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 43
- 238000000576 coating method Methods 0.000 description 38
- 239000011248 coating agent Substances 0.000 description 33
- 239000007789 gas Substances 0.000 description 30
- 239000000411 inducer Substances 0.000 description 21
- 229920005989 resin Polymers 0.000 description 21
- 239000011347 resin Substances 0.000 description 21
- 239000001993 wax Substances 0.000 description 21
- NIXOWILDQLNWCW-UHFFFAOYSA-M acrylate group Chemical group C(C=C)(=O)[O-] NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 18
- 238000010438 heat treatment Methods 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 17
- 150000001875 compounds Chemical class 0.000 description 17
- 239000007788 liquid Substances 0.000 description 17
- 239000002245 particle Substances 0.000 description 16
- 239000000463 material Substances 0.000 description 13
- 239000000178 monomer Substances 0.000 description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 11
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 11
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 10
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 10
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 9
- 229920000233 poly(alkylene oxides) Polymers 0.000 description 9
- 150000005846 sugar alcohols Polymers 0.000 description 9
- 238000005809 transesterification reaction Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 8
- 239000002253 acid Substances 0.000 description 8
- 238000006116 polymerization reaction Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 229920001577 copolymer Polymers 0.000 description 7
- 238000011156 evaluation Methods 0.000 description 7
- 229910044991 metal oxide Inorganic materials 0.000 description 7
- 150000004706 metal oxides Chemical class 0.000 description 7
- 238000006068 polycondensation reaction Methods 0.000 description 7
- 230000003746 surface roughness Effects 0.000 description 7
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 6
- 125000001931 aliphatic group Chemical group 0.000 description 6
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 6
- 229910000420 cerium oxide Inorganic materials 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 230000009477 glass transition Effects 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 description 6
- 239000005020 polyethylene terephthalate Substances 0.000 description 6
- 239000000523 sample Substances 0.000 description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 5
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 5
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 239000005001 laminate film Substances 0.000 description 5
- 239000002346 layers by function Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- RXOHFPCZGPKIRD-UHFFFAOYSA-N naphthalene-2,6-dicarboxylic acid Chemical compound C1=C(C(O)=O)C=CC2=CC(C(=O)O)=CC=C21 RXOHFPCZGPKIRD-UHFFFAOYSA-N 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 229910052707 ruthenium Inorganic materials 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 5
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 4
- 239000005977 Ethylene Substances 0.000 description 4
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 4
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 4
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 4
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000004203 carnauba wax Substances 0.000 description 4
- 150000002009 diols Chemical class 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 4
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 4
- 238000003475 lamination Methods 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 4
- 229920006254 polymer film Polymers 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 3
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910052797 bismuth Inorganic materials 0.000 description 3
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 3
- 235000013869 carnauba wax Nutrition 0.000 description 3
- 235000013339 cereals Nutrition 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000007756 gravure coating Methods 0.000 description 3
- 238000009998 heat setting Methods 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 239000010954 inorganic particle Substances 0.000 description 3
- 229910052746 lanthanum Inorganic materials 0.000 description 3
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 3
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 3
- 239000011976 maleic acid Substances 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 3
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 3
- 239000012169 petroleum derived wax Substances 0.000 description 3
- 235000019381 petroleum wax Nutrition 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 229910001887 tin oxide Inorganic materials 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 239000004408 titanium dioxide Substances 0.000 description 3
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 3
- WVLBCYQITXONBZ-UHFFFAOYSA-N trimethyl phosphate Chemical compound COP(=O)(OC)OC WVLBCYQITXONBZ-UHFFFAOYSA-N 0.000 description 3
- VQGHOUODWALEFC-UHFFFAOYSA-N 2-phenylpyridine Chemical compound C1=CC=CC=C1C1=CC=CC=N1 VQGHOUODWALEFC-UHFFFAOYSA-N 0.000 description 2
- LPIQIQPLUVLISR-UHFFFAOYSA-N 2-prop-1-en-2-yl-4,5-dihydro-1,3-oxazole Chemical compound CC(=C)C1=NCCO1 LPIQIQPLUVLISR-UHFFFAOYSA-N 0.000 description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000005711 Benzoic acid Substances 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 2
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 229920000265 Polyparaphenylene Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 2
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 2
- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 239000001361 adipic acid Substances 0.000 description 2
- 235000011037 adipic acid Nutrition 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- WZJYKHNJTSNBHV-UHFFFAOYSA-N benzo[h]quinoline Chemical compound C1=CN=C2C3=CC=CC=C3C=CC2=C1 WZJYKHNJTSNBHV-UHFFFAOYSA-N 0.000 description 2
- 235000010233 benzoic acid Nutrition 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 2
- 239000012295 chemical reaction liquid Substances 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- ZSWFCLXCOIISFI-UHFFFAOYSA-N cyclopentadiene Chemical compound C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 2
- DIOQZVSQGTUSAI-UHFFFAOYSA-N decane Chemical compound CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 description 2
- FLKPEMZONWLCSK-UHFFFAOYSA-N diethyl phthalate Chemical compound CCOC(=O)C1=CC=CC=C1C(=O)OCC FLKPEMZONWLCSK-UHFFFAOYSA-N 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 229920001038 ethylene copolymer Polymers 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000001530 fumaric acid Substances 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 2
- 239000012456 homogeneous solution Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910001872 inorganic gas Inorganic materials 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 238000007733 ion plating Methods 0.000 description 2
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- 150000002576 ketones Chemical class 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 2
- 239000001095 magnesium carbonate Substances 0.000 description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 2
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 2
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 2
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- WCPAKWJPBJAGKN-UHFFFAOYSA-N oxadiazole Chemical compound C1=CON=N1 WCPAKWJPBJAGKN-UHFFFAOYSA-N 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
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Description
1289507 (1) 玖、發明說明 【發明所屬之技術領域】 本發明係有關,含有至少經單向延伸之聚酯所成的基 材薄膜,與其至少單面設置之塗佈層而成之層合聚酯薄膜 ,使用此層合薄膜之層合薄膜者。 【先前技術】 聚酯薄膜,具有優異的機械性質,耐熱性,及耐藥品 性,可用爲磁性膠帶,強磁性薄膜膠帶,照相膠片,包裝 用薄膜,電子零件用薄膜,電氣絕緣薄膜,金屬之層壓用 薄膜,各種零件材料之保護用薄膜等等·,近年來,亦使用 在圖像顯示裝置之顯示面板上;圖像顯示裝置,如液晶顯 示裝置,其顯示面板已往都採用玻璃基板,近來由於圖像 顯示裝置之薄型化,輕量化,以及大畫面化的發展,引起 各界對使用聚酯薄膜可行性之種種硏討。 【發明內容】 [發明之揭不] 到目前爲止’要獲得具備充分耐衝擊性,透明性,以 及滑動性,同時對粘著層,硬塗層具有優異黏著性的高分 子薄膜’非常困難;圖像顯示裝置之顯示面板所使用的高 分子薄膜,因應各種用途,由氣體阻撐層,導體層,半導 體層’發光體層等機能層層合而成;此等機能層,是以蒸 著’離子鍍,噴鍍,電鍍VCD等方法層合,高分子薄膜在 (2) 1289507 層合步驟中必須曝露於高溫之下;因而,在機能層層合於 高分子薄膜之步驟中或層合步驟後,所得層合體中會有龜 裂,皴紋,斷裂等現象,不能獲得所期待之層合體,是爲 問題之所在。 本發明爲解決上述先前技術之種種難題,以獲得具備 充分耐衝擊性,透明性,以及滑動性,同時封粘著劑層, 硬塗層具有優異黏著性,更進一步,尺寸安性,耐衝擊性 都很優越的層合聚酯薄膜爲目標課題。 本發明之層合聚酯薄膜,其特徵爲含有至少經單向延 伸之聚酯所成的基材薄膜,與其至少單面設置之塗佈層而 成;塗佈層中含有高分子黏著成份及微粒子,該微粒子之 折射率與高分子黏著成份之折射率實際上相同;更進一步 ,層合聚酯薄膜之霾霧度在1.5 %以下,全光線透過率在 85%以上,薄膜厚度ΙΟΟμπι之50%破壞能量在0.3J以上,於 230°C 3 0分鐘之條件下熱收縮能率在4%以下,可以解決上 述之課題。 [用以實施發明之最佳型態] 就本發明詳細說明如下。 <氧化被膜〉 本發明中,構成基材薄膜之薄膜’是由芳香族二質子 酸或其酯形成性誘導體,與二醇類或其酯形成性誘導體所 成之線形飽和聚酯;聚酯之具體例’可以使用聚對苯二甲 酸乙烯,聚異苯二甲酸乙烯酯,聚對苯二甲酸丁烯醋’聚 (3) 1289507 (對苯二甲酸1,4 一環己烯二甲烯酯),聚2,6 —萘二羧 酸乙燒醋等;此等聚酯中,從力學物性與光學物性之平衡 的觀點而言,以聚對苯二甲酸乙烯酯,聚2,6 一萘二羧酸 乙燦酯較爲適用;從機械強度高,熱收縮率小,加熱時低 聚物之產生量少之觀點而言,則以聚2,6 -萘二羧酸乙烯 爲最適合。 聚酯,爲均聚體,共聚體皆可;使用共聚體聚酯時, 構成共聚體之共聚合酸成份,可以使用苯二甲酸,2,6_ 萘二羧酸等之芳香族二羧酸;己二酸,壬二酸,癸二酸, 1 ’ 1 〇 ·癸烷二羧酸等之脂肪族二羧酸;二醇類成份,可以 使用1,4 · 丁二醇,1,6 -己二醇,季戊二醇等之酯肪族二 酉孚;1,4 -環己烷二甲醇等之脂環族二醇;此等可以單獨或 兩種以上混合使用。 聚酯亦可使用,如安息香酸,甲氧基聚烯烴二醇等之 單官能性化合物,其末端之羥基及/或羧基之一部份或全部 被封住者;極少量的,如甘油,季戊四醇等之三官能基以上 的酯形成性化合物,在實質上可得線形共聚體之範圍內,行 共聚合者亦可。 本發明中,適用於基材薄膜的聚酯,其中之一爲與異 苯二甲酸共聚合之聚對苯二甲酸乙烯酯;此異苯二甲酸共聚 合聚對苯二甲酸乙烯酯,其對苯二甲酸之含量,對全部二殘 酸成份以90莫耳%以上爲宜,以95莫耳%以上爲佳;因而, 異苯二甲酸之含量,對全部二羧酸成份以10莫耳%以下爲宜 ,以5莫耳%以下爲佳。 (4) 1289507 本發明中,適用於基材薄膜的聚醋,其中之一爲聚萘 二羧酸乙烯酯,特別以聚2,6-萘二羧酸乙烯酯最爲適宜; 此聚2,6-萘二羧酸乙烯酯,其2,6-萘二羧酸之含量,對全 部二羧酸成份以90莫耳%以上爲宜,以95莫耳%以上較佳, 以97莫耳%以上爲最好。 本發明中之聚酯,可依已往眾所周知的方法製造而得; 如以二羧酸與二醇類反應,可得較低聚合度的聚酯;又,以 二羧酸之低級烷基酯與二醇類,使用酯交換觸媒進行酯交換 反應,在聚縮合觸媒之存在下進行聚合反應亦可得聚酯;酯 交換觸媒,可以使用含有鈉,鉀,鎂,鈣,鋅,緦,鈦,鉻 ’ ί孟’姑之化合物;聚縮合觸媒,可以使用三氧化鍊,五氧 化錄寺之鍊化合物;以一氧化錯爲代表之錯化合物;駄酸四 乙基酯,酞酸四丙基酯,酞酸四苯基酯,或此等之部份水解 物;草酸氧鈦二錢,草酸氧鈦鈣,三乙醯丙酮鈦等之鈦化合 物;經由酯交換反應而進行聚縮合反應時,酯交換反應觸媒 以在聚縮合反應之前鈍化(失去活性)爲宜;此鈍化,以憐 酸三甲基,磷酸三乙基,磷酸三正丁基,正磷酸等磷化合物 ’依磷兀素對聚醋爲20〜lOOppm之範圍添加即可;聚酯亦可 施行固相聚合,此時將熔融聚合所得之聚酯先行碎片化,在 加熱減壓下或氮氣等不活性氣流下進行固相聚合。 聚酯之固有粘度以0.40d < /公克以上爲宜,以 0.40〜0.9 0d < /公克更佳;固有粘度低於〇.40d < /公克時,常 會發生步驟中斷之現象,很不適宜;高於0.90d < /公克B寺, 熔融粘度高以致熔融押出產生困難,聚合時間延長,在經濟 (5) 1289507 上很不適合;聚酯中,可以含有著色劑,防止靜電劑’防止 氧化劑,有機滑劑等。 <塗佈層> 本發明之層合聚酯薄膜中,上述基材薄膜之至少單面 設置有塗佈層;此塗佈層含有高分子黏著成份及微粒子’ 微粒子之折射率與高分子黏著成份之折射率實際上相同; 折射率實際上相同,是指兩者之折射率差在〇.〇4以下而言 ;兩者之折射率差以小於0.0 2爲宜,以小於〇 · 〇 1更佳,小 於0.005爲最好;折射率差超過0.04時,由於局分子黏著成 份與微粒子之邊界的折射率差,使光線大量散射,以致塗 佈層之霾霧度升高,而透明性惡化。 <高分子黏著成份〉 高分子黏著成份,從授與良好之黏著性的觀點而言, 以聚酯樹脂及具有噁唑啉基與聚環氧鏈之丙烯酸樹脂的混 合體爲佳;高分子黏著成份,雖以水可溶性或水分散性者 爲宜,但也可以使用含有若干有機溶劑,而可溶於水者; 本發明中塗佈層之高分子黏著成份,其折射率通常爲 1.50〜1.60之範圍。 〈聚酯樹脂〉 構成高分子黏著成份之聚酯樹脂,可以使用由下述之 多質子酸成份與二醇類成份反應而得之聚酯;也就是,多質 -9- (6) 1289507 子酸成份可以使用對苯二甲酸,異苯二甲酸,苯二曱酸,苯 二甲酸酐,2,6-萘二羧酸,1,4-環己烷二羧酸,己二酸, 癸二酸,偏苯三酸,均苯四甲酸,二聚物酸,5 _鈉磺基異苯 二甲酸等等;構成高分子黏著成份的聚酯樹脂,以使用由 兩種以上之一竣酸成份共聚合之聚酯爲佳;聚酯樹脂中, 含有若干量之馬來酸,衣康酸等之不飽和多質子酸,或對_ 羥基安息香酸等之羥基羧酸亦可。 聚酯樹脂之二醇類成份,可以使用乙二醇,1,4-丁二 鲁 醇,二乙二醇,二丙二醇,1,6-己二醇,1,4-環己烷二甲 醇,苯二甲醇,二羥甲基丙烷等,聚(環氧乙烷)二醇,聚 (四氫呋喃)二醇等。 高分子黏著成份之聚酯樹脂的玻璃轉移點,以40〜1〇〇 °C爲宜,60〜80°C更佳;於此範圍內,可獲得優越的黏著性 及優異的耐損傷性;另一方面,玻璃轉移溫度低於4〇°C時, 薄膜與薄膜之間容易發生結塊,超過100 °C時,塗膜會變得 又硬又脆,致耐損傷性不佳。 · <丙烯酸樹脂> 做爲構成高分子黏著成份,所使用之具有嗤嗤琳基與 聚環氧鏈的丙烯酸樹脂,可以使用如下所述有噁唑啉基之單 體,及具有聚環氧鏈之單體所成的丙嫌酸樹脂° 具有噁唑啉基之單體,可以使用2-乙烯基-2-嚼哗啉’ 2-乙烯基-4-甲基-2-噁唑啉,2-乙烯基-5-甲基噁唑啉’ 1異 丙烯基-2-噁唑啉,2-異丙烯基甲基-2-噁唑啉,2-異丙烯 ^ 10- (7) 1289507 基-5-甲基-2-噁唑啉等等;此等可一種或兩種以上混合使用; 其中,以2-異丙烯基-2-噁唑啉在工業上較容易取得,最爲 適合;使用具有噁唑啉基之丙烯酸樹脂,可以提高塗佈層之 凝聚力,可強固與硬塗層及粘著層之密著性;更能授與薄膜 製膜步驟中及硬塗之加工步驟中對金屬滾筒之耐擦傷性。 具有聚環氧鏈之單體,可以使用丙烯酸,甲基丙烯酸 之酯部份,附加聚環氧烷基者;聚環氧烷基鏈,有聚環氧甲 烷’聚環氧乙烷,聚環氧丙烷,聚環氧丁烷等等;聚環氧烷 基鏈之重覆單位以3-1 00爲宜;使用具有聚環氧烷基鏈之丙 烯酸樹脂時,塗佈層高分子黏著成份中聚酯樹脂與丙烯酸 樹脂之相溶性’較不含聚環氧烷基鏈之丙烯酸樹脂爲佳,可 提高塗佈層之透明性;聚環氧烷基鏈之重覆單位低於3時, 聚酯樹脂與丙烯酸樹脂之相溶性不佳,以致塗佈層之透明 性惡化;聚環氧烷基鏈之重覆單位超過1 00時,塗佈層之耐 濕熱性下降,在高濕度及高溫下與硬塗層等之密著性惡化, 很不適宜。 丙烯酸樹脂中,可與下述之單體共聚合;即,丙烯酸 烷基酯,甲基丙烯酸烷基酯(烷基可爲,甲基,乙基,正丙 基,異丙基,正丁基,異丁基,第三級丁基,2-乙基己基, 環己基等);丙烯酸2-羥基乙酯,甲基丙烯酸2-羥基乙酯, 丙烯酸2·羥基丙酯,甲基丙烯酸2-羥基丙酯等之含羥基單體 ;丙烯酸縮水甘油酯,甲基丙烯酸縮水甘油酯,丙烯(基) 縮水甘油(基)醚等之含環氧基單體;丙烯酸,甲基丙烯酸 ’衣康酸,馬來酸,富馬酸,巴豆酸,苯乙烯磺酸及其鹽類 -11 - (8) 1289507 (鈉鹽,鉀鹽,銨鹽,第三級胺鹽等)等之含羧基或其鹽類 之單體;丙烯醯胺,甲基丙烯醯胺,N-烷基丙烯醯胺,N-烷 基甲基丙烯醯胺,N,N-二烷基丙烯醯胺,N,二烷基甲 基丙烯醯胺(烷基可爲,甲基,乙基,正丙基,異丙基,正 丁基,異丁基,第三級丁基,2-乙基己基,環己基等),N-環氧基丙烯醯胺,N-烷氧基甲基丙烯醯胺,N,N-二烷氧基 丙烯醯胺,N,N-二烷氧基甲基丙烯醯胺(烷氧基可爲,甲 氧基,乙氧基,丁氧基,異丁氧基等),丙烯醯嗎啉,N-羥 甲基丙烯醯胺,N·羥甲基甲基丙烯醯胺,N-苯基丙烯醯胺, N-苯基甲基丙烯醯胺等之含醯胺基單體;馬來酸酐,衣康酸 酐等之酸酐單體;異氰酸乙烯酯,異氰酸丙烯酯,苯乙烯, 甲基苯乙烯,乙烯(基)甲(基)醚,乙烯(基)乙( 基)醚,乙烯基三烷氧基矽烷,馬來酸單烷基酯,富馬酸單 烷基酯,衣康酸單烷基酯,丙烯腈,甲基丙烯腈,氯化亞乙 烯,乙烯,丙烯,氯乙烯,醋酸乙烯,丁二烯等等。 <高分子黏著成份之重量比> 形成塗佈層之聚酯樹脂,在塗佈層中之含有比率,以 5〜95重量%爲宜,以50〜90重量%爲最佳;形成塗佈層之含噁 唑啉基及聚環氧烷基鏈的丙烯酸樹脂,在塗佈層中之含有比 率,以5〜90重量%爲宜,以1〇〜50重量%爲最佳;聚酯樹脂超 過95重量%,或含噁唑啉基及聚環氧烷基鏈之.丙烯酸樹脂 低於5重量%時,塗佈層之凝聚力會下降,對硬塗及粘著劑 之黏著性不足,極爲不宜;丙烯酸樹脂超過90重量%時, 1289507 Ο) 聚酯薄膜之密著性將下降,對硬塗及粘著劑之黏著性不足 ’不適合使用。 <微粒子> 本發明中,構成塗佈層之微粒子,以使用二氧化矽與 二氧化鈦之複合無機粒子爲佳;此二氧化矽與二氧化鈦之 複合無機粒子,可任意調整其折射率;高分子黏著成份之 折射率在1 · 5 0〜1 · 6 0之範圍;微粒子之折射率,亦以和高 分子黏著成份相同之1.50〜1.60的範圍內爲佳。 微粒子之平均粒子徑,以40〜l2〇nm之範圍爲宜;大 於120 nm之粒子,容易發生脫落現象,小於40nm時,不能 獲得充分之滑動性及耐損傷性,很不適合;微粒子之含有 量,以塗佈層之〇 · 1〜1 〇重量%的範圍爲佳;低於0.1重量% 時,不能獲得充分之滑動性及耐損傷性,超過10重量%時 ,塗膜之凝聚力下降,黏著性不良,極爲不宜。 <脂肪族蠟> 塗佈層中含有脂肪族蠘,可使薄膜之表面獲得滑動性 ,適合使用;其含有量以〇·5~30重量%爲宜,以i重量%~1〇 重量%更佳;此含有量低於〇·5重量%時,薄膜表面之滑動 性不足,很不適宜;超過30重量%時,對聚酯薄膜之基材 ,硬塗,粘著劑之密著,容易產生黏著性不足之現象;脂 肪族蠟,具體的可以使用巴西棕櫚蠟,小燭樹脂,米蠟, 木蠟,荷荷巴油,棕櫚蠟,松香變性蠟,歐烏利居里蠟, -13- (10) 1289507 甜玉米蠟,西班牙草蠟,樹皮蠟等之植物系蠟,蜜蠟,含 水羊毛脂,鯨蠟,白蠟,蟲膠蠟等之動物系蠟,褐煤蠟, 天然地蠟,純地蠟等之礦物系蠟,石油蠟,微晶蠟,礦脂 蠟等之石油系蠟,費托合成蠟,聚乙烯蠟,氧化聚乙傭蠟 ,聚丙烯蠟,氧化聚丙烯蠟等之合成烴蠟等等;其中,從 對硬塗及粘著劑等之易黏著性及滑動性的觀點而言,以巴 西棕櫚蠟,石油蠟,聚乙烯蠟最爲適用;此等可以減低環 境荷載及容易處理之水分散體使用,很適合。 <添加劑> 爲提高塗佈層之滑動性及耐損傷性,在不影響透明性 之情況下,含有其他之微粒子亦可;其他之微粒子,如碳 酸鈣,碳酸鎂,氧化鈣,氧化鋅,氧化鎂,二氧化矽,矽 酸鈉,氫氧化鋁,氧化鐵,氧化鉻,硫酸鋇,二氧化鈦, 氧化錫,三氧化銻,碳黑,二硫化鉬等之機微粒子,丙烯 酸系交聯聚合體,苯乙烯系交聯聚合體,矽氧樹脂,氟樹 脂,苯並烏糞胺樹脂,酚樹脂,耐隆樹脂等之有機微粒子; 此等之中,爲避免水不溶性之固體物質,在水分散液中沉 澱,以選擇比重不超過3之微粒子爲佳。 <層合聚酯薄膜之物性> 本發明之層合聚酯薄膜,具備下列各特性。 <霾霧度> -14- (11) 1289507 本發明之層合聚酯薄膜,共霾霧度必須在1.5 %以下; 霾霧度超過1.5 %時,透明性不佳,亮度下降,很難用爲顯 示器;霾霧度在1 · 0 %以下更佳,在〇 . 5 %以下最爲適用。 <全光線透過率> 本發明之層合聚酯薄膜,其全光線透過率必須在8 5 % 以上;全光線透過率不足8 5 %時,透明性不佳,亮度下降 ,很難用爲顯示器;全光線透過率以87 %以上更佳,在90% 以上最爲適用。 < 50%破壞能量> 本發明之層合聚酯薄膜,於厚度1 〇 〇μ m之5 0 %破壞能 量必須在〇 · 3 J以上;厚度i 〇 0μ m之5 〇 %破壞能量不足〇 . 3 J時 ,其耐衝擊性不佳,容易破裂,很難做爲彈性顯示器使用 ;厚度ΙΟΟμιη之50%破壞能量,以〇.4J以上更佳,以0.5J以 上最爲適用。 <熱收縮率> 本發明之層合聚酯薄膜,於23 0 °C 3 0分鐘之條件下, 其熱收縮率必須在4 %以下;此熱收縮率超過4 %時,在機 能層層合於薄膜上之際或層合後之層合體’會產生龜裂及 皺紋,破壞層合體’導致不能充分發揮其機能;熱收縮率 以2%以下更佳’以1%以下最爲適用。 (12) 1289507 <表面粗糙度> 本發明之層合聚酯薄膜,其薄膜表面之三維中心線平 均粗糙度SRa,任何一面都以2〜20nm爲宜;SRa小於2nm時 ,不能獲得充分之易滑性,很難卷取;又,超過20nm時 ,雖然易滑性優越,但是在機能膜層合於薄膜上之際,會 發生塗佈層脫落,蒸著層脫落等現象,不能充分發揮其機 能。 本發明之層合聚酯薄膜,以至少單面之十點平均粗糙 度Rz,在50〜15 0nm之範圍爲宜;Rz不足50nm時,不能獲 得充分之易滑性,很難卷取;又,超過15 Onm時,雖然易 滑性優越,但是在機能膜層合於薄膜上之際,會發生塗佈 層脫落,蒸著層脫落等現象,不能充分發揮其機能。 <折射率指數> 本發明之層合聚酯薄膜,在以連續製膜法製膜之際, 連續製膜方向之折射率爲nMD,與連續製膜方向垂直之方 向的折射率爲nTD時,薄膜面方向之折射率差指數之絕對 値’以5 0以下爲宜;此薄膜面方向之折射率指數,以下式 表示。
Δη= ( nMD^nTD) xlOOO 此△;〇以-50〜50爲宜,以-40~40更佳,以-30〜30最好 -16- (13) 1289507 A η之絕對値超過5 0時’薄膜面方向之各向錢性增大 ,熱收縮率之各向異性也變大,在機能層層合之_,於特 定方向會產生龜裂及皺紋,不能充分發揮其機能,極不合 適0 <楊氏率> 本發明之層合聚酯薄膜’其楊氏(縱彈性)率以 3〜l5GPa爲宜;不足3GPa時,薄膜易於延伸,不趫於以滾 筒處理;又,超過15 GPa時,薄膜之生產性不良;楊氏率 以4~12GPa爲佳,在5〜lOGPa之範圍內最爲適用。 <厚度> 本發明之層合聚酯薄膜,如用爲液晶,硬塗餍,觸盤 ,防暈眩處理,電漿顯示面板(PDP )用電磁波屏蔽膜, 有機電激發光(EL ),電子紙張,太陽電池等之支撐體 時,必須獲得相當的強度及一定程度的曲撓性,其厚度以 12~50〇um爲宜,以25~350μηι更佳,以50~250ym爲最適合; 又,本發明之層合聚酯薄膜,雖不含充塡劑,但在不影響 其特性之情況下,含有少量,小粒徑之充塡劑亦可。 <層合聚酯薄膜之製造方法> 本發明之層合聚酯薄膜,如上述之聚酯在熔融情況下 押出成薄膜狀,以鑄造轉筒冷卻固化爲未延伸薄膜;此未 延伸薄膜在玻璃轉移溫度(Tg)〜(Tg + 60 ) °C之溫度下進行 -17- (14) 1289507 縱方向及橫方向之雙軸延伸,其倍率爲2.0〜5.0倍;在( Τηι·100)〜(Tm-5) °C之溫度下進行1~1〇〇秒鐘之熱固定 ’即得所期望之薄膜;延伸可以使用一般所用的滾筒法或 豎桿法;縱方向與橫方向同時延伸亦可,或縱方向,橫方 向逐次延伸亦可;塗佈層於逐次延伸時,在單方向延伸後 單軸定向薄膜上,以水性塗液塗佈之後直接進行另一方向 延伸,再經熱固定即可;塗佈的方法,可以使用滾筒塗佈 法,照相凹版塗佈法,滾筒刷法,噴霧法,氣刀塗佈法, 浸漬法,降簾塗佈法等等;此等方法可以單獨或組合使用 ;上述Tg爲聚合體之玻璃轉移溫度,Tm爲聚合體之融點 〇 進行鬆緩處理時,在薄膜之(X-80 )〜Xt之溫度下進 行加熱處理,效果非常良好;X表示熱固定溫度;鬆緩處理 的方法有在熱固定後至滾筒卷取之間的熱固定範圍區域,將 薄膜兩端切去,對薄膜之供給速度而言,爲減低拉取速度的 方法;在兩個速度各異的輸送滾筒之間,以IR加熱器加熱的 方法;以加熱輸滾筒輸送薄膜,而減低加熱輸送滾筒後之輸 送滾筒速度的方法;在熱固定後吹送熱風之噴嘴上方輸送薄 膜,同時將拉取速度減至低於供給速度的方法;或用製膜機 卷取後,以加熱輸送滾筒輸送薄膜,輸送滾筒減速的方法; 或在加熱爐內,IR加熱器上,於加熱區域輸送,同時將加熱 區域後之滾筒速度減壓低於加熱區域前之滾筒速度的方法; 使用任何一種方法都好;對供給側之速度而言,拉取側速度 之減速率,以0.1〜10%之範圍進行鬆緩處理爲佳。 (15) 1289507 特別對於本發明之塗佈層,由於使用具備上述特徵之 物質,能製造出具有本發明所必備特性的薄膜。 <層合薄膜.> 本發明之最佳實施型態說明如下。 <硬塗層> 本發明之層合聚酯薄膜,可在塗佈層之上設置硬塗層 ’成爲有用的層合薄膜;硬塗層以使用耐藥品性,耐損傷性 極強之硬化性樹脂爲佳;此硬化性樹脂,有電離輻射線硬化 型樹脂,熱硬化型樹脂,熱塑性樹脂等;其中以電離輻射線 硬化型樹脂爲佳;對透明基材薄膜之膜形成作業容易進行, 而且容易獲得所期望之鉛筆硬度。 形成硬塗層之電離輻射線硬化型樹脂,以持有丙烯酸 酯系官能基者爲佳,以聚酯丙烯酸酯或氨基甲酸酯丙烯酸酯 最爲適用;聚酯丙烯酸酯是,由聚酯系聚醇之低聚物的丙烯 酸酯及/或甲基丙烯酸酯[以下,含丙烯酸酯與甲基丙烯酸酯 者以(甲基)丙烯酸酯稱呼之]所構成;又,上述之氨基甲 酸酯丙烯酸酯是,由聚醇化合物與二異氰酸酯化合物所成低 聚物,經丙烯酸酯化後之生成物所構成;構成丙烯酸酯之單 體,有(甲基)丙烯酸甲酯,(甲基)丙稀酸乙酯,(甲基 )丙烯酸丁酯,(甲基)丙烯酸2 ·乙基己酯,(甲基)丙烯 酸甲氧基乙酯,(甲基)丙烯酸丁氧基乙酯,(甲基)丙烯 酸苯酯等等。 -19- (16) 1289507 爲更進一步提高上述硬塗層之硬度時,可以倂用多官 能單體;具體的多官能單體,可以使用如三羥甲基丙烷三( 甲基)丙烯酸酯,己二醇(甲基)丙烯酸酯,三丙二醇二( 甲基)丙烯酸酯,二乙二醇二(甲基)丙烯酸酯,季戊四醇 三(甲基)丙烯酸酯,二季戊四醇六(甲基)丙烯酸酯,1 ,6-己二醇二(甲基)丙烯酸酯,季戊二醇二(甲基)丙烯 酸酯等等。 形成硬塗層所使用聚酯系低聚物,有由己二酸與二醇 類(乙二醇’聚乙二醇’丙二醇,丁二醇,聚丁二醇等), 或三醇類(甘油,三羥甲基丙烷等),癸二酸與二醇類或三 醇類之縮合生成物的聚己二酸酯三醇,聚癸二酸酯聚醇等等 ;上述脂肪族二羧酸之一部分或全部被其他有機酸取代亦可 ;其他有機酸,可以使用異苯二甲酸,對苯二甲酸,或苯二 甲酸酐等等;此等可使硬塗層具有極高的硬度,甚爲適用。 形成硬塗層所使用聚氨基甲酸酯系低聚物,可由聚異 氰酸酯與聚醇之縮合生成物而得;具體的聚異氰酸酯,可以 使用如甲烯·雙(對·苯烯二異氰酸酯),六甲烯二異氰酸 酯·己三醇之附加物,六甲烯二異氰酸酯,甲苯烯二異氰酸 醋’甲苯烯一異氰酸酯三羥甲基丙烷之加合物,1,5 _萘烯 二異氰酯,硫丙基二異氰酸酯,乙基苯_2,4-二異氰酸酯, 2,4·甲苯烯二異氰酸酯二聚物,加氫二甲苯烯二異氰酸酯 ,三(4-苯基異氰酸酯)硫磷酸酯等等;又,具體的聚醇類 可以使用,聚羥基丁二醇等之聚醚系聚醇,聚己二酸酯聚醇 ’聚碳酸酯聚醇等之聚酯系聚醇,丙烯酸酯類與羥基乙基甲 -20- (17) 1289507 基丙烯酸酯之共聚合體等等。 更進一步,上述電離輻射線硬化型樹脂,使用紫外線 硬化型樹脂時,此等樹脂中以混合使用苯乙酮類,二苯甲酮 類,苯甲醯苯甲酸酯,α -戊肟酯或硫咕噸酮類等之光聚合 引發劑,及正丁胺,三乙胺,三正丁膦等之光增感劑等等爲 佳。 氨基甲酸酯丙烯酸酯,其彈性及可撓性極佳,加工性 優異;相反的,其表面硬度不足,難以獲得2Η以上之鉛筆 度;針對此點,聚酯丙烯酸酯中,藉由選擇構成其聚酯之成 份,可以形成硬度極高之硬塗層;高硬度與可撓性容易造成 對立,硬塗層之配合比率,以氨基甲酸酯丙烯酸酯佔60〜90 重量份,聚酯丙烯酸酯佔40〜10重量份爲佳。 上述形成硬塗層所使用之塗佈液,爲同時調整其光澤 與表面滑動性,以使用二次粒徑在20μ m以下之不活性微粒 子,其添加量對樹脂成份1100重量份,爲0.3〜3重量份爲佳; 添加量在0.3重量份以下時,缺乏提高滑動性之效果;另一 方面,超過3重量份時,所得硬塗層之鉛筆硬度下降;塗佈 液中添加之不活性微粒子,可以使用二氧化矽,碳酸鎂,氫 氧化鋁,硫酸鋇等之無機微粒子之外,也可以使用聚碳酸酯 ,丙烯酸樹脂,聚醯亞胺,聚醯胺,聚萘二甲酸乙烯酯,三 聚氰胺樹脂等之有機聚合體之微粒子。 又,硬塗層中可以含有吸收紫外線劑;如此可以防止 透明基材及著色劑(特別是染料系著色劑)之紫外線劣化, 可以長時間保持其視認性及防爆性;吸收紫外線劑之種類, (18) (18)1289507 沒有特別的限制,以由上述特定之環狀亞氨基酯選出爲佳; 其添加量對形成硬塗層之樹脂100重量%,以0.1〜10重量%爲 佳;低於0.1重量%時,對紫外線劣化之防止效果甚小;超過 1 0重量%時,耐摩耗性及耐擦傷性不良;添加之方法,以使 用溶劑分散爲佳。 形成硬塗層之塗佈方法,可依塗佈液之特性及塗佈量 之多少,由眾所周知的如滾筒塗佈,照相凹版塗佈,棒桿塗 佈,押出塗佈等塗佈方法中選擇其適當者;硬塗層之厚度沒 有特別的限制,以1〜1 5μιη之範圍爲佳;塗佈液之固形份濃 度以30〜70重量%爲宜,以40〜60重量%更好。 設置有硬塗層之層合薄膜的構成方法,有在本發明層 合聚酯薄膜之塗佈層上方,設置硬塗層而構成;有在塗佈層 基材薄膜兩者之上,設置硬塗層而構成;有在基材薄膜之兩 面設置塗佈層,更於兩塗佈層之上設置硬塗層而構成等等; 本發明亦提供此等層合薄膜。 <氣體阻擋層> 本發明層合聚酯薄膜之上,可以設置氣體阻擋(隔離 )層,成爲有用的層合薄膜;氣體阻擋層,可以直接設置在 本發明層合聚酯薄膜的塗佈層之上;也可以設置於塗佈層之 上,與硬塗層之間;又,也可以設置於塗佈層反面之基材薄 膜的上方;在做爲液晶顯示面板,有機電激發光面板等之用 途上,以設置氣體阻擋層爲佳;氣體阻擋層,可以使用有機 材料系及無機材料系之任何一種材料。 (19) 1289507 有機材料系之氣體阻擋層,可以使用聚乙烯醇,乙綠 醇-乙烯共聚合體等之乙烯醇共聚合體,聚丙烯腈,丙儲腈_ 丙烯酸甲酯共聚合體,丙烯腈-苯乙烯共聚合體之丙烯腈共 聚合體’或聚偏氯乙條等之有機高分子材料所成之層;此等 材料可使用照相凹版塗佈,桶槽塗佈等濕式塗佈法,塗佈於 本發明聚醋之上,形成氣體阻檔層;使用聚乙燃系之阻擋層 時’容易因吸濕而使阻擋氧氣之特性急速下降;另一方面, 以形成水蒸氣阻擋層卻很適合。 無機材料系之氣體阻擋層,可以使用一種或2種以上以 選自矽,鋁-鎂,及鋅所成群的金屬爲主成份之金屬氧化物 ’金屬氣化物;此寺爲氣體阻擋性優越之材料;此等氧化物 之層,可依噴鍍法,真空蒸著法,離子鍍法,電漿CVD法等 之氣相中,以氣相堆櫝法將材料堆積形成膜。 其中,從氣體阻擋性,透明性,表面平滑性,曲撓性 ,膜應力,成本等觀點而言,對矽原子數1,氧原子數之比 率以1 · 5〜2.0之砍氧化物爲主成份的金屬氧化物,最爲良好 〇 對矽氧化物之矽原子數,氧原子數之比率,可以X線 光電子分光法,X線測微分光法,奧格電子分光法,盧瑟 福反向散射法等分析決定之;此比率小於1.5時,曲撓性 ,透明性會下降,以1 · 5〜2 · 0爲適宜。 由金屬氧化物所成無機氣體阻擋層之厚度,以 5〜200nm之範圍爲佳;比5nm薄時,很難形成均勻之膜, 會發生部份沒有形成膜的現象,氣體將由此部份浸透,氣 -23- (20) 1289507 體阻擋性不良;又,比2 0 0 n m厚時,不僅透明性欠佳,曲 撓性不良,也會發生龜裂現象,有損氣體阻擋性;又隨會 屬氧化物之製膜方法,而特性各異,一般金屬氧化物之膜 厚較厚時’金屬氧化物層之殘留應力會增大,本發明之透 明導電性高分子基板,於形成金屬氧化物層後之旋度增大 ’不適合使用;更進一步,爲獲得高透明性,以含有對全 體重量5〜3 0重量%之氟化鎂的上述的砂氧化物爲佳。 此等氣體阻擋層,使用單獨層亦可,又,複數層倂用 亦可;特別在有機系氣體阻擋層與無機系氣體阻擋層倂用時 ’有機系氣體阻擋層具有優越的耐龜裂性,無機系阻擋層具 有優異的耐水蒸氣性,此組合具有相乘效果,最爲適合;再 者’爲增強設置氣體阻擋層之表面與氣體阻擋層之間的密著 性,在此等層之間形成各種增黏塗層亦可;增黏塗層必須具 有耐藥品性,透明性,及良好之層間密著性,可以使用如含 矽樹脂,環氧樹脂等熱硬化性樹脂,紫外線硬化性丙烯酸樹 脂等之輻射線硬化性樹脂,三聚氰胺樹脂,氨基甲酸酯樹脂 ,醇酸樹脂等等。 設置有氣體阻擋層之層合薄膜的構成方式,有在本發 明層合聚酯薄膜之塗佈層上設置氣體阻擋層而構成者;有在 基材薄膜之上設置氣體阻擋層而構造者;有在塗佈層與基材 薄膜兩者之上設置氣體阻擋層而構成者;本發明也提供此等 層合薄膜。 <透明導電層> ~ 24 - (21) (21)1289507 本發明層合聚酯薄膜之上,也可以設置透明導電層, Λ 成爲有用的層合薄膜;以本發明之層合聚酯薄膜用在電激發 _ 光(EL ) ’電子紙張,太陽電池等用途時,必須要有導電 層。 導電層以透明性,導電性優異者爲佳;此透明導電層 有’在氧化銦,氧化鎘,氧化錫中加入錫,碲,鎘,鉬,鎢 ’氟等雜質’在氧化鋅,氧化鈦中加入鋁等雜質所成之金屬 氧化膜;其中以含有氧化錫2〜1 5重量%之銦·錫氧化物(馨 ΙΤΟ)之薄膜,具有優異的導電性,透明性,最爲適用。 上述透明導電層之膜厚,可因應表面電阻之目標而設 定;透明導電層之表面電阻,因應需求目的設定在300 Ω/ϋ 〜1Ω/□,其膜厚通常製作爲1〇謂〜400謂之範圍;但,在具 有可撓性之高分子基板上,製作透明導電層時,因應基板之 彎曲應力,防止透明導電層之割裂,期望其膜厚減薄,透明 導電層之厚度以30nm〜140nm爲最好;又,爲獲得較低之電 阻,熱處理之溫度,以130°C〜200°C之間最爲適合。 ® 設置有透明導電層之層合薄膜的構成方式,有在本發 明層合聚酯薄膜之塗佈層上,設置透明導電層而構成者;有 在基材薄膜之上,設置透明導電層而構成者;有在塗佈層與 基材薄膜兩者之上各自設置透明導電層而構成者。 透明導電層,可經硬塗層而設置;亦可經氣體阻擋層 而設置;經硬塗層及氣體阻擋層兩者而設置亦可;本發明也 供此層合薄膜。 又,本發明中,透明導電層依序經氣體阻擋層及硬塗 -25- (22) 1289507 層而設置於塗佈層之上的層合薄膜,其膜厚爲ΙΟΟμηι之50% 破壞能量,在0.31以上爲宜,在0.4】以上更好,在0.5:[以上 最爲適用;50%破壞能量不足0.3J時,耐衝擊性不佳,容易發 生裂痕,很難適用於彈性顯示器之用途。 <用途> 本發明之層合聚酯薄膜或層合薄膜,可適用於顯示器 用途,太陽電池用途,窗戶張貼用途等;在顯示器用途上 ’可適用於液晶,有機電激發光,電子紙張,觸盤,電漿 顯示面板(PDP)用之電磁波屏蔽薄膜等等。 做爲有機電激發光(EL )顯示器使用時,本發明之層 合薄膜中可將發光材料層合使用;做爲電子紙張使用時,本 發明之層合薄膜中可將圖像顯示元件層合使用;做爲太陽電 池使用時,本發明之層合薄膜可將太陽電池元件層合使用; 此等用途使用本發明之層合薄膜,可以獲得比其他材料更薄 ,而且耐衝擊性更優越之物質。 電激發光(EL )材料,可以使用色素系發光材料,金 屬配位化合物系發光材料,高分子系發光材料等等。 色素系發光材料,可以使用環戊二烯誘導體,四苯基 丁二烯誘導體,三苯基胺誘導體,噁二唑誘導體,毗唑D奎啉 誘導體,二苯乙烯基苯誘導體,二苯乙烯基芳烯誘導體,西 洛盧誘導體,噻吩環化合物,吡啶環化合物,菲誘導體,驼 酮誘導體,低噻吩誘導體,三富馬醯胺誘導體,噁二唑二聚 物,吡唑啉二聚物等等。 -26- (23) 1289507 又,金屬配位化合物系發光材料,可以使用鋁喹啉酚 配位化合物,苯并喹啉酚鈹配位化合物,苯并噁唑鋅配位化 合物,苯并噻唑鋅配位化合物,偶氮甲基鋅配位化合物,卟 啉鋅配位化合物,銪配位化合物等,中心金屬爲含有鋁,鋅 ,鈹等,或铽,銪,鏑等之稀土金屬,配位化合物爲含有噁 二唑,噻二唑,苯基吡啶,苯基苯并咪唑,喹啉等構造之金 屬配位化合物等等。 高分子系發光材料,可以使用聚對苯烯乙烯基誘導體 ,聚噻吩誘導體,聚對苯烯誘導體,聚矽烷誘導體,聚乙炔 誘導體,聚乙烯基咔唑,聚芴酮誘導體,聚芴誘導體,聚D奎 喔啉誘導體,及此等之共聚合體等等。 【實施方式】 [實施例] 以實施例詳細說明本發明如下;其物性及特性以下列 方法測定之。 (1 )薄膜厚度 使用電子測微計(安立茲股份有限公司製,商品名爲 「K-3 12A型」)以針壓30公克,測定薄膜之厚度。 (2)霾霧度’全光線透過率 依JIS規格K67M- 1 958之標準,求得全光線透過率Tt ( % )與散射光透過率Td(%),算出霾霧度[(Td/Tt) χ100]( (24) (24)1289507 % ) 〇 (3 )表面粗糙度 (3 -1 )二維中心線粗糕度S R a 使用非接觸式三維粗糙度計(小坂硏究所製,商品名 爲「ET30HK」),依下列條件測定表面粗糙度SRa。 波長780nm之半導體雷射 測定長1公厘 採樣間隔2 μ m 截斷0.25公厘 縱方向(薄膜連續製膜方向)擴大倍率十萬倍橫方向 (與連續製膜方向垂直)擴大200倍掃描線數1〇〇條
(3-2)十點平均粗糙度RZ 使用原子間力顯微鏡(迪吉托儀器公司製,商品名爲 笔:微福不益IIIA F Μ」之J掃描器),依下列條件測定R ζ。
探針:單結合矽感知器 掃描模式:分流模式 畫素數:256x256數據點 掃描速度:2.0Hz 測定環境:室溫,大氣中 掃描範圍:lOymD (4 )熱收縮率 -28- (25) 1289507 在簿腠試料上每隔30公分做一記號,於不負載下以所 疋溫度之加熱爐進行熱處理,熱處理後測定各記號之間隔 距離;薄0吴連續製膜方向(M D方向)與垂直於製膜方向 (TD方向)依下式算出其熱收縮率。 熱收縮率(% )=(熱處理前記號間距離-熱處理後記號間 距離)/熱處理前記號間距離X 1 00 (5 )薄膜之折射率差指數△ η 使用稜鏡耦合器(美催康公司製,商品名爲「模式 2010」),測定波長473nm,633nm,830nm之薄膜連續製膜 方向’與製膜方向垂直之方向的折射率;將所得測定値代入 下列古稀之分散式。 η i = a + [b/ ( λ i) 2] + [c/ ( λ i) 4] 式中,λ i爲測定波長,7? i爲波長1 i測定之折射率; 解聯之方程式,求出常數a,b,c;使用所得a,b,c之値 ,計算出波長5 89nm (鈉,D線之波長)之折射率,爲薄 膜之折射率;薄膜之折射率差指數△ η,可依下式算出。
Δ n= ( nTD-nMD ) xlOOO (6 )塗佈層成份之折射率 (26) 1289507 高分子黏著成份,塗劑於板狀上,在9(TC下乾固後, 以阿倍折射率計(D線5 89nm )測定其折射率;又,微粒 子在90。(:下乾固後,將微粒子懸浮於各種折射率不同之25 °C液中,以阿倍折射率計(D線5 8 9nm )測定最透明懸濁 液之折射率値。 (7 )玻璃轉移溫度 取試料約1 0毫克,封裝於測定用鋁製皿中,置入差示 熱量計(TA儀器公司製,商品名爲「DSC2920」,自25°C 起以每分鐘20°C之速度升溫至300°C,300 °C保持5分鐘後取 出,直接放在水上急速冷卻;此皿再度置入差示熱量計, 從-7 0 °C起以每分鐘10°C之速度升溫,測定其玻璃轉移溫度 (丁g),°C )。 (8 )固有粘度 固有粘度(U ]d < /公克),係在35 °C之鄰一氯苯酚溶 液中測定者。 (9 )塗佈層之厚度 將薄膜之小片埋藏於環氧樹脂(立懷因得克股份有限 公司製,商品名爲「耶波蒙特」)中,使用理查強公司製之 超薄切片機2050,將薄膜小片連同環氧樹脂切成50nm厚之 薄片;以透過型電子顯微鏡(LEM-2000 ),加速電壓100KV ,倍率1 〇萬倍觀察之,測定塗膜層之厚度。 -30- (27) 1289507 (1 0 )平均粒徑 進行與塗佈層厚度相同之操作,測定1 〇 〇個粒子之粒子 徑,其平均値爲平均粒子徑。 (]1 )楊氏率 將薄膜試料切成寬10公厘,長15公分之長條,夾盤感 100公厘,拉引速度每分鐘10公厘,其圖表速度每分鐘500公 厘’以萬能拉力試驗裝置拉引’以所得荷重一伸長曲線之上 升部接線,計算出薄膜連續製膜方向(M D方向)與和製膜 方向成垂直方向(TD方向)之楊氏率。 (1 2 )滑動性 使用摩擦試驗機(荷友電子股份有限公司製,商品纟 爲「SFT- 1 200S」),在寬10公厘縱切後之薄膜上加以4〇公 克/平方公厘之荷重Τ】(公克),以外徑6公厘0之不錄鋼 (SS 3 04 )針(表面粗糙度Ra = 20nm )依90度角接觸之, 測出以每秒20公厘之速度通過時之脫離荷重了2 (公克), 依下式算出摩擦係數μ,以下述基準評估之。 μ=《η ( Τ]/Τ2 ) 〇:0.35以下之情況 △ : 0.3 5 -0.40之情況 X: 〇·4以上之情況 (28) (28)1289507 (1 3 )與硬塗層之密著性 在聚酯薄膜之塗佈面上,形成厚度5ym之硬塗層,於硬 塗層上之施行棋盤孔眼之橫割(1平方公厘之孔眼1 〇〇個), 其上以24公厘寬之賽珞玢膠帶(尼吉伴公司製)貼黏之;以 1 80度之剝離角度急速剝離後,觀察其剝離面,以下述基準 評估其良否。 〇:剝離面積低於1 0%,黏著力極爲良好 △:剝離面積大於10%,低於40%,黏著力還算良好 X :剝離面積大於40%,黏著力極爲不良 (14 )耐衝擊性 以圖1之耐衝擊性測定裝置,測定薄膜之50%破壞能 量E(J),依JIS規格K7211之標準算出;圖1中之1爲載重 (重量爲3〇〇公克或500公克),2爲U型衝擊針(前端直徑 春 爲4公厘,重量142公克),3爲固定器,4爲試料薄膜;其 厚度ΙΟΟμιτι之50%破壞能量E5。(J)依下式算出。 E5〇 = E X lOO(ym) /試料薄膜厚度(ym) (1 5 )塗佈層之組成 實施例與比較例使用之塗佈層組成,如表1所示;構 成此塗佈層之各成份如下。 -32- (29) 1289507 表1 塗佈乃 f之組成(重量% ) 高分子黏著成 份之折射率 高分子; 沾著成份 微 (立子 其他 聚酯樹脂 丙烯酸樹脂 微粒子1 微粒子2 蠟 濕潤劑 塗液1 67 20 3 5 5 1.57 塗液2 67 20 • 3 5 5 1·57 塗液3 70 20 - - 5 5 1.57 (聚酯) 由酸成份2,6-萘二羧酸63莫耳%/異苯二甲酸32莫耳 %/5-鈉磺基異苯二甲酸5莫耳%,與二醇成份乙二醇9〇莫 耳%/二乙二醇1〇莫耳%所構成(Tg = 76 °C,平均分子量爲 1 2 0 0 〇 );聚酯是以特開平〇 6 · 1 1 6 4 8 7號公報之實施例1上 I己載的方法爲依據’製造如下;即將2,6 -蔡二殘酸二甲 酯4 2重量份,異苯二甲酸二甲酯17重量份,5_鈉磺基異苯二 甲酸二甲酯4重量份,乙二醇33重量份,二乙二醇2重量份注 入反應器中;再加入四丁氧基鈦〇.〇5重量份,於氮氣之大氣 下加熱,溫度控制在230 °C,將生成之甲醇除去,進行酯交 換反應;其次使反應系之溫度徐徐升至255 °C,系內維持在 1 mmHg之減壓情況,進行聚縮合反應,即得聚酯。 (丙烯酸樹脂) 由甲基丙烯酸酯30莫耳%/2 -異丙炔基-2-噁唑啉30莫耳 %/聚環氧乙烷(n=10)甲基丙烯酸酯1〇莫耳%/丙烯酸醯胺3〇 (30) 1289507 莫耳%所構成(Tg = 50°C );丙烯酸樹脂,是以特開昭63_ 3 7 1 6 7號公號之製造例1〜3上所記載的方法爲依據,製造如下 ;,在四口燒瓶中加入離子交換水302重量份,於氮氣氣流 中加熱至6 0 °C ;其次加入聚合引發劑過硫酸銨〇. 5重量份, 亞硝酸氫鈉0.2重量份;更加入單體類甲基丙烯酸甲酯23.3重 量份,2-異丙炔基-2-噁唑啉22.6重量份,聚環氧乙烷(η=ι〇 )甲基丙烯酸40·7重量份,丙烯酸醯胺1.3.3重量份之混合物 ,以3小時滴加完畢,滴加之同時調整溫度,使液溫保持在 60〜7 0°C之間;滴加完畢後,保持同溫度2小時,反應在攪拌 下繼續進行;冷卻後,即得固形份爲25重量%之丙烯酸樹脂 的水分散體。 (微粒子1 ) 使用二氧化矽及二氧化鈦之複合無機粒子(平均粒徑 爲10〇11111);微粒子1,是以特開平7-2520號公報之製造例 及實施例上所記載的方法爲依據,製造如下;在附帶有攪 拌翼,內容積4公升之玻璃製反應器中,注入甲醇140公克 ,異丙醇260公克,及氨水(25重量% ) 100公克,調製成 反應液,反應液之溫度保持在40°C並繼續攪拌;其次,在 3公升之三角燒燒中,加入四甲氧基矽[Si(OMe) 4,克 爾克特股份有限公司製,商品名爲「矽酸甲基39」]542公 克,同時攪拌,再加入甲醇195公克及0.1重量%之鹽酸水溶 液(和光純藥工業股份有限公司製35重量%鹽酸以水稀釋 1 000倍)28公克,攪拌約10分鐘;繼續加入四異丙氧基鈦 (31) 1289507 [Ti (〇-i-Pr ) 4,日本曹達股份有限公司製,商品名爲「α·1 (ΤΡΤ)」]300公克以異丙醇634公克稀釋之液體,可得透明 均勻之溶液(四烷氧基矽與四烷氧基鈦之共縮合物);將上 述均勻溶液1 699公克,及氨水(25重量% ) 4 80公克,分別滴 入上述反應液中,開始以最慢速度滴加,緩緩增高滴加速度 ,以2小時同時滴加完畢;所得共水解物過濾後,在5 〇 t:下 乾燥之,其後分散於水中,即得濃度丨〇重量%,折射率爲 1.56之微粒子1。 (微粒子2 ) 使用矽充塡劑(平均粒徑爲200nm,折射率爲1.42 )( 日產化學股份有限公司製,商品名爲「MP-2040」)。 (蠘) 使用巴西棕櫚蠟(中京油脂股份有限公司製,商品名 爲「榭洛若爾524」)。 (濕潤劑) 使用聚環氧乙烷(n = 7 )十二烷基醚(三洋化成股份有 限公司製,商品名爲「納洛亞庫帝_ N _ 7 〇」)。 [實施例1] 將2,6-萘二羧酸二甲酯100重量份,及乙二醇6〇重量 份’與酯交換觸媒醋酸錳四水物〇.〇3重量份,在溫度自1 5 〇 -35- (32) 1289507 °C徐徐升溫至23 8 °C之同時進行120分鐘之酯交換反應;其 間溫度達到170 °C時,加入三氧化銻〇·〇24重量份,酯交換 反應完了後,加入磷酸三甲酯(乙二醇中1 35 t 5小時, 0.1 1〜0.1 6MPa之加壓下經加熱處理之溶液,磷酸三甲酯之換 算量0.023重量份);其後將反應生成物移至聚合反應器, 升溫至290 °C,在低於27Pa之高真空下進行聚縮合反應,即 得固有粘度爲0.61d</公克,實際上不含粒子之聚2,6-萘二 羧酸乙烯酯。 此聚2,6-萘二羧酸乙烯酯之顆粒,在170°C下乾燥6小 時後,移入押出機貯料斗,於305 °C之熔融溫度下熔融,以 平均篩目1 7μ m之不銹鋼細線濾網過濾之,經3公厘之縫隙狀 壓模,押出於表面溫度60°C之旋轉冷卻筒上,急速冷卻,即 得未延伸薄膜;以如此而得之未延伸薄膜在120°C下預熱, 更在低速,高速滾筒之間的15公厘上方,以900°C之IR加熱 器加熱之,使縱方向延伸3.1倍;此縱延伸後之薄膜的單面 ,以表1之塗液1用滾筒塗佈機塗佈至乾燥後塗膜厚度可達到 0.1 μ m之程度。 繼續輸送至拉幅器,於145°C下,橫方向延伸3.2倍;所 得雙軸定向薄膜,再經240 °C溫度40秒鐘之熱固定,即得厚 度200ym之層合聚酯薄膜;所得薄膜之特性,如表2所示; 可獲得厚度較薄,耐衝擊性優異,而且滑動性,透明性,尺 寸安定性,黏著性均極爲優越的薄膜。 [實施例2] -36- (33) 1289507 實施例1所得層合聚酯薄膜,以滾筒卷取後,用IR加 熱器之加熱區域,進行22 0 °C溫度,鬆緩率0.5%之鬆緩處 理,即得雙軸定向薄膜;所得薄膜之特性,如表2所示; 可獲得厚度較薄,耐衝擊性優異,而且滑動性,透明性, 尺寸安定性,黏著性均極爲優越之薄膜;其中尺寸安定性 特優。 表2 實施例1 實施例2 製膜條件 厚度 μηι 200 延伸倍率(縱X橫) 倍 3.1x3.2 評 估 項 a 霾霧度 % 1.0 1.0 全光線透過率 % 87 87 中心線表面粗糙度 SRa mil 11 11 10點平均粒糙度 Rz urn 100 100 熱收縮率(230°Cx30分鐘) MD方向 % 3.0 0.5 TD方向 % 4.0 0.5 折射率差指數 Δη -1 3 楊氏率 MD方向 GPa 5.8 5.6 TD方向 GPa 5.8 5.6 滑動性 〇 〇 硬塗層密著性 〇 〇 50%破壞能量(E5G) J 0.6 0.6 總合評估 〇 ◎ (34) 1289507 [比較例1] 在實施例1使用的聚2,6-萘二羧酸乙烯酯中’加入平均 粒徑爲0.35 um之球狀矽粒子〇.1重量%混練之;經延伸倍率縱 方向爲3.7倍,橫方向爲4.0倍延伸之,薄膜厚度爲75um外, 其他都和實施例1相同,即得雙軸延伸薄膜;所得薄膜之特 性,如表3所示;所得薄膜因含平滑劑之故,霾霧較高,全 光線透過率也差,變成不透明之薄膜;又,延伸倍率過大, 變成熱收縮率很大的薄膜。 [比較例2] 在實施例1中,塗佈層使用的塗液1更換爲塗液2,其他 都和實施例1相同,即得雙軸延伸薄膜,所得薄膜之特性, 如表3所示;所得薄膜,其塗佈層之微粒子與高分子黏著成 份之折射率差太大,變成霾霧度高,不透明之薄膜。 [比較例3] 在實施例1中,塗佈層使用的塗液1更換爲塗液3,其他 都和實施例1相同,即得雙軸延伸薄膜,所得薄膜之特性, 如表3所示;所得薄膜之塗佈層中沒有微粒子存在之故,變 成滑動性不良之薄膜。 -38- (35) 1289507
表3 比較例 1 比較例 2 比較例 3 製膜條件 厚度 μιη 75 200 * 延伸倍率(縱X橫) 倍 3·7χ4·0 3.1x3.2 霾霧度 % 21.0 1.7 0.8 全光線透過率 % 82 87 87 評 中心線表面粗糙度 SRa nm 21 33 3 估 10點平均粒糙度 Rz nm 70 160 33 項 熱收縮率(230°Cx30分鐘) MD方向 % 4.2 3.0 3.0 a TD方向 % 4.7 4.0 4.0 折射率差指數 Δη -16 -1 -1 楊氏率 MD方向 GPa 6.1 5.8 5.8 TD方向 GPa 6.4 5.8 5.8 滑動性 〇 〇 X 硬塗層密著性 X 〇 〇 50%破壞能量(E5〇) J 0.6 0.6 0.6 總合評估 X X X
[比較例4 ] 沒有塗佈層,延伸倍率如表4所示變更外,其他都和 實施例1相同,即得雙軸延伸薄膜;所得薄膜之特性,如 表4所示;所得薄膜沒有塗佈層之故,其滑動性,對硬塗 層之密著性均不良;又,變成爲各方異性很大的薄膜. -39- (36) 1289507 [比較例5 ] 將對苯二甲酸甲酯96重量份,乙二醇58重量份,醋酸 ί孟0_03 8重量份’及三氧化銻〇.〇41重量份分別注入反應器中 ’攪拌同時升溫至240 °C,除去甲醇同時進行酯交換反應; 醋交換反應完了後,加入磷酸三甲基0.〇97重量份,反應生 成物繼續升溫’最終在280°C高真空之條件下進行聚縮合反 應’即得固有粘度([77 ])之値爲0.64之聚對苯二甲酸乙烯 酯的碎片。 其次’將此聚對苯二甲酸乙烯酯之碎片,在1 7〇 °C下乾 燥3小時後’送至雙軸押出機,於28(rc熔融混練,急冷固化 後即得主膠料。 此聚對苯二甲酸乙烯酯之顆粒,在1 6(rc下乾燥3小時 後’送至押至機料斗,於熔融溫度295 下熔融,用保持 在2〇 °C的冷卻旋轉筒急速冷卻固化,即得未延伸薄膜;該 未延伸薄膜’於95 °C下進行縱方向延伸,延伸倍率爲3.5 倍;其次於其背面,甚至正面塗佈下述之塗劑,其厚度以 乾燥後達到〇 · 1 μ m之程度爲宜;在1 1 〇 °C下進行橫方向延伸 ’延伸倍率爲3.8倍;延伸後於230 °C施行熱處理,即得厚 度爲ΙΟΟμπι之雙軸延伸薄膜;所得薄膜之特性,如表4所 示;爲霾霧度’全光線透過率良好,但熱收縮率大,尺寸 安定性不隹之薄膜。 [比較例6 ] -40- (37) 1289507 評估市售品厚度爲2 0 0 μη3之聚磺醚薄膜(住友別克來 特公司製,商品名爲「FS- 1 3 00」);評估結果如表4所示; 爲霾霧度,全光線透過率,熱收縮率良好,但滑動困難,耐 衝擊性也不佳之薄膜。 表4 比較例 4 比較例 5 比較例 6 製膜條件 厚度 μηι 75 100 200 延伸倍率(縱X橫) 倍 4·0χ3.3 3·5χ 3.8 霾霧度 % 0.7 0.8 0.7 全光線透過率 % 85 90 88 評 中心線表面粗糙度 SRa nm η 11 5 估 10點平均粒糙度 Rz nm 15 100 12 項 熱收縮率(230°Cx30分鐘) MD方向 % 2.0 6.8 0.1 S TD方向 % 0.4 3.4 0.6 折射率差指數 Δη 65 12 1 楊氏率 MD方向 GPa 6.7 5.1 2.3 TD方向 GPa 5.7 5.7 2.3 滑動性 X 〇 X 硬塗層密著性 X 〇 〇 50%破壞能量(E50) J 0.6 0.4 0.2 總合評估 X X 〇 [實施例3] -41 - (38) 1289507 在實施例1所得薄膜之塗佈層上形成硬塗層;將硬塗 劑(大日精化工業股份有限公司製,商品名爲「PETD-31 」與1 -羥基環苯基酮一起攪拌脫泡後,以滾筒塗佈法塗佈至 其乾燥後厚度可達5μηι之程度,乾燥後以電子線在175KV及 lOMrad之條件下照射,即形成硬塗膜;甚至,在硬塗層之反 面,使用真空蒸著裝置,將矽與二氧化矽之混合物所成蒸著 材料,以電子線加熱之,形成厚度2 0 n m之S i Ο X膜。 其次,在噴鍍裝置中導入氬氣與氧氣之混合氣體(氧 氣濃度爲1.4容積% ),調整壓力爲0.27Pa,使用氧伦銦錫( ITO )對陰極(二氧化錫濃度爲5重量% ),導入電力密度爲 lw/cm2之條件下進行DC噴鍍,厚度達130μπι後,於15(TC下 施行2小時的熱處理,即得由氧化銦錫(ITO )膜所成層合 薄膜;所得薄膜之特性,如表5所示;可獲得構成體薄,耐 衝擊性優越之物質。 [實施例4] 實施例2所得薄膜,依實施例3相同之方法,可得硬塗 層,氣體阻擋層,透明導電層層合之薄膜;所得薄膜之特性 ,如表5所示·,可獲得構成體薄,耐衝擊性優越之物質。 [比較例7] 實施例6所得薄膜,依實施例3相同之方法,可得硬塗 層,氣體阻擋層,透明導電層層合之薄膜;所得薄膜之特 性,如表5所示;爲耐衝擊性不良,容易割裂之層合薄膜 -42- (39) 1289507 [比較例8 ] 市售品之附帶氧化銦錫(ITO )玻璃(可寧公司製, 商品名爲^ # 1 737」)所得特性,如表5所示;爲耐衝擊性非 常不良者。 表5 實施例3 實施例4 比較例7 比較例8 50%破壞能量(E50) J 0.6 0.6 0.2 0.01
本發明可以提供,滑動性,透明性,尺寸安定性,耐 衝擊性,黏著性均極爲優異之層合聚酯薄膜。 【圖式簡單說明】
圖1爲用以測定50%破壞能量之耐衝擊性測定裝置; 圖中之代號說明如下。 1:載重砝碼,300公克或500公克 2: U型衝擊尖頭,直徑4公厘0,重142公克 3 :薄膜固定器 4:薄膜 - 43-
Claims (1)
- (1) 1289507 拾、申請專利範圍 1 . 一種層合聚酯薄膜,其係由聚酯所構成,含有至 少經單向延伸之基材薄膜,與設置於至少一面之塗佈層之 層合聚酯薄膜,其特徵塗佈層含有高分子黏著成份與微粒 子,該微粒子之折射率與高分子黏著成份之折射率實質上 相同,層合聚酯薄膜霾霧度在1.5 %以下,全光線透過率在 85%以上,薄膜厚度ΙΟΟμπι之50%破壞能量在0.3.T以上,於 23 0°C 3 0分鐘之條件下熱收縮率在4%以下。 2 .如申請專利範圍第1項之層合聚酯薄膜,其中聚酯 爲聚2,6-蔡二羧酸乙烯酯。 3 ·如申請專利範圍第1項之層合聚酯薄膜,其中於23 0 °C 3 0分鐘之條件下的熱收縮率,在1 %以下。 4 ·如申請專利範圍第1項之層合聚酯薄膜,其中高分 子黏著成份之折射率及微粒子之折射率,同爲1.50〜1.60。 5 ·如申請專利範圍第1項之層合聚酯薄膜,其中高分 子黏著成份,係聚酯樹脂及含有噁唑啉基與聚環氧基之丙烯 酸樹脂的混合體。 6 ·如申請專利範圍第1項之層合聚酯薄膜,其中雙面 表面之二維中心線平均粗縫度SRa同爲2〜20n m,至少單面之 十點平均粗糙度Rz爲5 0〜15 0nm。 7 ·如申請專利範圍第1項之層合聚酯薄膜,其中基材薄 '膜是以連續製膜法製膜者,連續製膜方向之折射率爲nMD, 與連續製膜方向成垂直之方向的折射率爲nTD時,如下式所 表示,薄膜面方向之折射率差指數△ η之絕對値在5 〇以下, (2) 1289507 Δ η = ( η Μ D - η Τ D ) χΙΟΟΟ ο 8·如申請專利範圍第1項之層合聚酯薄膜,其中楊氏率 爲 3〜15GPa。 % 9 · 一種層合薄膜,其特徵爲在申請專利範圍第1項之層 合聚酯薄膜的塗佈層之上,設置有硬塗層者。 10· —種層合薄膜,其特徵爲在申請專利範圍第9項之 層合薄膜的硬塗層之上,設置有氣體阻擋層者。 1 1. 一種層合薄膜,其特徵爲如申請專利範圍第1 〇項之 φ 層合薄膜的氣體阻擋層之上,設置有透明導電層者。 12. —種層合薄膜,其特徵爲在申請專利範圍第1〇項之 之層合薄膜上設置有氣體阻擋層的相反面,再設置有透明導 電層者。 1 3.如申請專利範圍第1 1項之層合薄膜,其中薄膜厚度 ΙΟΟμπι左右之50%破壞能量,在0.3J以上。 1 4.如申請專利範圍第1項之層合聚酯薄膜,做爲電激 發光(EL)用基板薄膜使用。 # 15.如申請專利範圍第13項之層合薄膜,做爲電激發光 用基板薄膜使用。 1 6.如申請專利範圍第1項之層合聚酯薄膜’做爲電子 紙張用基板薄膜使用。 1 7 .如申請專利範圍第1 3項之層合薄膜,做爲電子紙張 用基板薄膜使用。 1 8.如申請專利範圍第1項之層合聚酯薄膜,做爲太陽電 池用基板薄膜使用。 -45 - (3)1289507 1 9.如申請專利範圍第1 3項之層合薄膜,做爲太陽電池 用基板薄膜使用。-46-
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- 2003-06-02 DE DE60321678T patent/DE60321678D1/de not_active Expired - Lifetime
- 2003-06-02 AU AU2003241732A patent/AU2003241732A1/en not_active Abandoned
- 2003-06-02 TW TW92114936A patent/TWI289507B/zh not_active IP Right Cessation
- 2003-06-02 WO PCT/JP2003/006931 patent/WO2003102057A1/ja active IP Right Grant
- 2003-06-02 US US10/491,921 patent/US7022388B2/en not_active Expired - Lifetime
- 2003-06-02 CN CNB038128713A patent/CN1293131C/zh not_active Expired - Fee Related
- 2003-06-02 EP EP20030730768 patent/EP1510540B1/en not_active Expired - Lifetime
- 2003-06-02 KR KR1020047012703A patent/KR100974841B1/ko active IP Right Grant
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TWI407090B (zh) * | 2010-12-01 | 2013-09-01 | Univ St Johns | 薄膜附著力檢測裝置 |
TWI644799B (zh) * | 2014-01-17 | 2018-12-21 | Lg化學股份有限公司 | 阻障膜及其製備方法 |
US10196492B2 (en) | 2014-01-17 | 2019-02-05 | Lg Chem, Ltd. | Barrier film and method for preparing the same |
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US7022388B2 (en) | 2006-04-04 |
TW200307602A (en) | 2003-12-16 |
DE60321678D1 (de) | 2008-07-31 |
WO2003102057A1 (fr) | 2003-12-11 |
EP1510540B1 (en) | 2008-06-18 |
KR20050004779A (ko) | 2005-01-12 |
US20040265539A1 (en) | 2004-12-30 |
JP2004009362A (ja) | 2004-01-15 |
EP1510540A1 (en) | 2005-03-02 |
KR100974841B1 (ko) | 2010-08-11 |
CN1659216A (zh) | 2005-08-24 |
JP4052021B2 (ja) | 2008-02-27 |
EP1510540A4 (en) | 2005-07-20 |
CN1293131C (zh) | 2007-01-03 |
AU2003241732A1 (en) | 2003-12-19 |
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