WO2011071003A1 - 電磁コイル用絶縁フィルムおよびそれを備えたモーターおよびトランス - Google Patents
電磁コイル用絶縁フィルムおよびそれを備えたモーターおよびトランス Download PDFInfo
- Publication number
- WO2011071003A1 WO2011071003A1 PCT/JP2010/071803 JP2010071803W WO2011071003A1 WO 2011071003 A1 WO2011071003 A1 WO 2011071003A1 JP 2010071803 W JP2010071803 W JP 2010071803W WO 2011071003 A1 WO2011071003 A1 WO 2011071003A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- insulating film
- electromagnetic coil
- group
- liquid crystal
- temperature
- Prior art date
Links
- 229920000728 polyester Polymers 0.000 claims abstract description 115
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 79
- -1 2,6-naphthalenediyl group Chemical group 0.000 claims abstract description 36
- 125000003118 aryl group Chemical group 0.000 claims abstract description 28
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 9
- 125000001140 1,4-phenylene group Chemical group [H]C1=C([H])C([*:2])=C([H])C([H])=C1[*:1] 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 125000004432 carbon atom Chemical group C* 0.000 claims description 15
- 230000035699 permeability Effects 0.000 claims description 14
- 125000000217 alkyl group Chemical group 0.000 claims description 12
- 125000004429 atom Chemical group 0.000 claims description 4
- 125000001989 1,3-phenylene group Chemical group [H]C1=C([H])C([*:1])=C([H])C([*:2])=C1[H] 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims 1
- 150000002367 halogens Chemical class 0.000 claims 1
- 125000005843 halogen group Chemical group 0.000 abstract description 11
- 125000000008 (C1-C10) alkyl group Chemical group 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 33
- 238000003786 synthesis reaction Methods 0.000 description 28
- 239000000178 monomer Substances 0.000 description 27
- 238000000034 method Methods 0.000 description 25
- 239000000843 powder Substances 0.000 description 23
- 230000004888 barrier function Effects 0.000 description 19
- 239000000155 melt Substances 0.000 description 18
- 239000008188 pellet Substances 0.000 description 18
- 238000006116 polymerization reaction Methods 0.000 description 16
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 229920005989 resin Polymers 0.000 description 12
- 239000011347 resin Substances 0.000 description 12
- 238000005259 measurement Methods 0.000 description 11
- 239000007790 solid phase Substances 0.000 description 11
- 238000004898 kneading Methods 0.000 description 10
- 239000000203 mixture Substances 0.000 description 10
- 238000000465 moulding Methods 0.000 description 10
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 8
- 238000009413 insulation Methods 0.000 description 8
- 239000000945 filler Substances 0.000 description 7
- 238000005755 formation reaction Methods 0.000 description 7
- 125000001624 naphthyl group Chemical group 0.000 description 7
- 239000002994 raw material Substances 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 238000010292 electrical insulation Methods 0.000 description 6
- KAUQJMHLAFIZDU-UHFFFAOYSA-N 6-Hydroxy-2-naphthoic acid Chemical compound C1=C(O)C=CC2=CC(C(=O)O)=CC=C21 KAUQJMHLAFIZDU-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 238000010438 heat treatment 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
- 239000002245 particle Substances 0.000 description 5
- FJKROLUGYXJWQN-UHFFFAOYSA-N 4-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 239000006103 coloring component Substances 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 229910001873 dinitrogen Inorganic materials 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 238000004381 surface treatment Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- MCTWTZJPVLRJOU-UHFFFAOYSA-N 1-methyl-1H-imidazole Chemical compound CN1C=CN=C1 MCTWTZJPVLRJOU-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 3
- 238000007334 copolymerization reaction Methods 0.000 description 3
- 239000007822 coupling agent Substances 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 229930195729 fatty acid Natural products 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- MNZMMCVIXORAQL-UHFFFAOYSA-N naphthalene-2,6-diol Chemical compound C1=C(O)C=CC2=CC(O)=CC=C21 MNZMMCVIXORAQL-UHFFFAOYSA-N 0.000 description 3
- 229920001225 polyester resin Polymers 0.000 description 3
- 239000004645 polyester resin Substances 0.000 description 3
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- 229940090248 4-hydroxybenzoic acid Drugs 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical group C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000010933 acylation Effects 0.000 description 2
- 238000005917 acylation reaction Methods 0.000 description 2
- 125000004423 acyloxy group Chemical group 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- VCCBEIPGXKNHFW-UHFFFAOYSA-N biphenyl-4,4'-diol Chemical group C1=CC(O)=CC=C1C1=CC=C(O)C=C1 VCCBEIPGXKNHFW-UHFFFAOYSA-N 0.000 description 2
- UORVGPXVDQYIDP-UHFFFAOYSA-N borane Chemical compound B UORVGPXVDQYIDP-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000003851 corona treatment Methods 0.000 description 2
- 229920006038 crystalline resin Polymers 0.000 description 2
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 description 2
- 239000012772 electrical insulation material Substances 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000011229 interlayer Substances 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
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000009832 plasma treatment Methods 0.000 description 2
- 238000006068 polycondensation reaction Methods 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- 239000012756 surface treatment agent Substances 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
- NEQFBGHQPUXOFH-UHFFFAOYSA-N 4-(4-carboxyphenyl)benzoic acid Chemical compound C1=CC(C(=O)O)=CC=C1C1=CC=C(C(O)=O)C=C1 NEQFBGHQPUXOFH-UHFFFAOYSA-N 0.000 description 1
- JTGCXYYDAVPSFD-UHFFFAOYSA-N 4-(4-hydroxyphenyl)benzoic acid Chemical compound C1=CC(C(=O)O)=CC=C1C1=CC=C(O)C=C1 JTGCXYYDAVPSFD-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical group [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000004697 Polyetherimide Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- OJMOMXZKOWKUTA-UHFFFAOYSA-N aluminum;borate Chemical compound [Al+3].[O-]B([O-])[O-] OJMOMXZKOWKUTA-UHFFFAOYSA-N 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- 229910000085 borane Inorganic materials 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 1
- 235000010261 calcium sulphite Nutrition 0.000 description 1
- FYHXNYLLNIKZMR-UHFFFAOYSA-N calcium;carbonic acid Chemical compound [Ca].OC(O)=O FYHXNYLLNIKZMR-UHFFFAOYSA-N 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- KYKAJFCTULSVSH-UHFFFAOYSA-N chloro(fluoro)methane Chemical compound F[C]Cl KYKAJFCTULSVSH-UHFFFAOYSA-N 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 125000005067 haloformyl group Chemical group 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001643 poly(ether ketone) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920001955 polyphenylene ether Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 1
- 229960001755 resorcinol Drugs 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000000807 solvent casting Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/30—Windings characterised by the insulating material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/60—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from the reaction of a mixture of hydroxy carboxylic acids, polycarboxylic acids and polyhydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/60—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from the reaction of a mixture of hydroxy carboxylic acids, polycarboxylic acids and polyhydroxy compounds
- C08G63/605—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from the reaction of a mixture of hydroxy carboxylic acids, polycarboxylic acids and polyhydroxy compounds the hydroxy and carboxylic groups being bound to aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/42—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes polyesters; polyethers; polyacetals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/42—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes polyesters; polyethers; polyacetals
- H01B3/421—Polyesters
- H01B3/422—Linear saturated polyesters derived from dicarboxylic acids and dihydroxy compounds
- H01B3/423—Linear aromatic polyesters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
- C08J2367/03—Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the hydroxy and the carboxyl groups directly linked to aromatic rings
Definitions
- the present invention relates to an insulating film for an electromagnetic coil that is applied to an electrical component that requires safety when an abnormal voltage occurs, such as a motor (electric motor) or a transformer (transformer), and a motor using the insulating film for an electromagnetic coil. And the transformer.
- an insulating film is formed in the shape of a slot or a wedge and inserted between the coils in order to electrically insulate a plurality of coils (electromagnetic coils) from each other.
- an insulating film is used as an interlayer insulating material or a spacer in the coil winding for the same purpose as the motor.
- the film which consists of polyesters, such as a polyethylene terephthalate, ie, a polyester film is widely used from the point which is excellent in electrical insulation and moldability (patent document 1).
- JP 2006-35504 A (paragraph [0062] column)
- the present inventors measured the water vapor permeability of a film made of polyethylene terephthalate having a thickness of 50 ⁇ m, it was 1 g / m 2 ⁇ 24 h or more at a temperature of 40 ° C. and a relative humidity of 90%. It turned out that a lot of moisture invades. In this case, when used as an insulation for an electromagnetic coil of a motor or a transformer, the water vapor barrier property is inferior, so that the practical durability of the motor or the transformer may be lowered.
- the present invention is excellent not only in electrical insulation, molding processability and heat resistance but also in water vapor barrier properties, and is useful for insulation of electromagnetic coils of motors or transformers.
- the second object is to provide a motor and a transformer capable of enhancing practical durability by using such an insulating film for an electromagnetic coil. To do.
- the present inventor has focused on adopting a liquid crystal polyester having a specific structure as a raw material for an insulating film of an electromagnetic coil, and has completed the present invention.
- the first aspect of the present invention is an electromagnetic coil insulating film composed of a liquid crystal polyester, wherein the liquid crystal polyester is represented by the structural unit represented by the following formula (1), the formula (2): And the content of the structural unit containing 2,6-naphthalenediyl group is 40 mol% or more with respect to the total content of all the structural units. It is characterized by.
- Ar 1 represents a 2,6-naphthalenediyl group, a 1,4-phenylene group or a 4,4′-biphenylene group
- Ar 2 and Ar 3 each independently represents 2,6-naphthalenediyl
- the hydrogen atom on the group represented by Ar 1 , Ar 2 or Ar 3 is independently a halogen atom; (It may be substituted with an atom, an alkyl group having 1 to 10 carbon atoms, or an aryl group having 6 to 20 carbon atoms.)
- the liquid crystalline polyester is an insulating film for an electromagnetic coil having a flow start temperature of 280 ° C. or higher.
- the third aspect of the present invention is a liquid crystal polyester measured at a temperature of 40 ° C. and a relative humidity of 90%. It is an insulating film for electromagnetic coils having a water vapor permeability of m 2 ⁇ 24 h or less.
- the fourth aspect of the present invention is an electromagnetic coil insulating film composed of a liquid crystal polyester, wherein the liquid crystal polyester is measured at a temperature of 40 ° C. and a relative humidity of 90%. It is an insulating film for electromagnetic coils having a water vapor permeability of m 2 ⁇ 24 h or less.
- the fifth aspect of the present invention is an electromagnetic coil insulating film made of liquid crystal polyester, wherein the liquid crystal polyester has a thickness of 50 ⁇ m, a temperature of 40 ° C., and a relative humidity of 90%. It is an insulating film for electromagnetic coils having a water vapor permeability of 0.005 g / m 2 ⁇ 24 h or less.
- a sixth aspect of the present invention is a motor in which the electromagnetic coil insulating film according to any one of the first aspect to the fifth aspect is used.
- a seventh aspect of the present invention is a transformer in which the electromagnetic coil insulating film according to any one of the first aspect to the fifth aspect is used.
- the raw material of the insulating film for electromagnetic coils is a specific liquid crystal polyester, the insulation for electromagnetic coils for motors or transformers excellent in electrical insulation, molding processability, heat resistance and water vapor barrier properties.
- a film can be provided. Therefore, by assembling a motor or a transformer using this electromagnetic coil insulating film, it is possible to increase the practical durability of these electrical components.
- Embodiments of the present invention will be described below. Embodiment 1 of the Invention
- FIG. 1 shows a first embodiment of the present invention (embodiment in which the electromagnetic coil insulating film according to the present invention is applied to a motor). ⁇ Configuration of motor>
- the motor 1 has a cylindrical housing 2, and a stator (stator) 3 is attached in the housing 2 along the inner peripheral surface thereof.
- the stator 3 includes a cylindrical iron core 8 and a plurality of coils 9 arranged so as to be arranged along the inner side of the iron core 8. These coils 9 are electrically insulated from each other in such a manner that each coil 9 is covered with an electromagnetic coil insulating film 10.
- a cylindrical columnar output shaft 5 is supported at the center of the housing 2 via two bearings 6 so as to be rotatable in the direction of arrow M about the axis CT1.
- a cylindrical rotor (rotor) 7 is attached to the peripheral surface of the output shaft 5 so as to be able to rotate in the internal space of the stator 3 as the output shaft 5 rotates.
- the electromagnetic coil insulating film 10 is made of liquid crystal polyester, and this liquid crystal polyester has a specific structure.
- the thickness of the insulating film 10 for electromagnetic coils can be suitably selected according to the output of the motor 1, the arrangement
- the thickness of the electromagnetic coil insulating film 10 is too thin, there is a risk of impairing the insulation, which is the original function of the electromagnetic coil insulating film 10.
- the moldability disappears as the thickness of the electromagnetic coil insulating film 10 increases. Therefore, it is desirable that the thickness of the electromagnetic coil insulating film 10 be in a range (for example, 1 to 1000 ⁇ m) within which both insulation and moldability can be secured.
- the liquid crystalline polyester constituting the electromagnetic coil insulating film 10 exhibits optical anisotropy when melted, and is represented by the structural unit represented by the following formula (1), the structural unit represented by the formula (2), and the formula (3).
- the total content of all structural units (by dividing the mass of each structural unit constituting the liquid crystal polyester by the formula weight of each structural unit, the equivalent amount of substance (mole) of each structural unit is obtained.
- the content of the structural unit containing 2,6-naphthalenediyl group is 40 mol% or more with respect to the total value obtained.
- the liquid crystalline polyester preferably has a flow start temperature of 280 ° C. or higher and a maximum melt tension (melt tension) of 0.0098 N or higher when measured at a temperature higher than the flow start temperature.
- Ar 1 represents a 2,6-naphthalenediyl group, a 1,4-phenylene group or a 4,4′-biphenylylene group
- Ar 2 and Ar 3 each independently represents 2,6-naphthalenediyl group.
- the hydrogen atom on the group represented by Ar 1 , Ar 2 or Ar 3 is independently a halogen atom; (It may be substituted with an atom, an alkyl group having 1 to 10 carbon atoms, or an aryl group having 6 to 20 carbon atoms.)
- the liquid crystal polyester means a polyester that exhibits optical anisotropy when melted at a temperature of 450 ° C. or lower.
- a liquid crystal polyester can be obtained by selecting a monomer containing a 2,6-naphthalenediyl group and another monomer having an aromatic ring as raw material monomers and polymerizing them at the production stage.
- the liquid crystalline polyester is polymerized by adjusting the amount of raw material monomers so that the content of structural units containing 2,6-naphthalenediyl groups in the liquid crystalline polyester is 40 mol% or more. Can be obtained.
- the liquid crystal polyester constituting the electromagnetic coil insulating film 10 is the sum of the structural unit represented by the formula (1), the structural unit represented by the formula (2), and the structural unit represented by the formula (3). Since the content of the structural unit containing 2,6-naphthalenediyl group is 40 mol% or more with respect to the content, the water vapor barrier property of the electromagnetic coil insulating film 10 can be improved.
- the content of the structural unit containing 2,6-naphthalenediyl group is preferably 50 mol% or more with respect to the total content of all the structural units.
- the content of the structural unit containing a 2,6-naphthalenediyl group is preferably as large as possible.
- the upper limit is not particularly limited, but, for example, in view of the productivity of liquid crystal polyester, it is preferably 50 to 95 mol%, more preferably 65 to 90 mol%, and more preferably 70 to 85 mol%. It is particularly preferred.
- the liquid crystal polyester containing more 2,6-naphthalenediyl groups can further improve the water vapor barrier property of the electromagnetic coil insulating film 10.
- the total content of structural units derived from the aromatic hydroxycarboxylic acid represented by the formula (1) is 30 to 80 mol% with respect to the total content of all structural units, and the aromatic represented by the formula (2)
- the total content of structural units derived from dicarboxylic acid is preferably 10 to 35 mol%
- the total content of structural units derived from the aromatic diol represented by formula (3) is preferably 10 to 35 mol%.
- the liquid crystalline polyester used in the present invention has two or more types of structural units represented by formula (1), structural unit represented by formula (2), and structural unit represented by formula (3). May be.
- the liquid crystalline polyester used in the present invention may have structural units other than the structural units represented by the formulas (1), (2) and (3), but the content is the sum of all structural units.
- the content is usually 1 to 10 mol%, preferably 1 to 5 mol%, based on the content.
- the liquid crystalline polyester used in the present invention is preferably a wholly aromatic liquid crystalline polyester.
- the wholly aromatic liquid crystal polyester is a liquid crystal polyester using only an aromatic compound as a raw material monomer. Since the wholly aromatic liquid crystalline polyester is excellent in heat resistance, it can be suitably used as a material for the insulating film 10 for electromagnetic coils.
- the structural unit derived from the aromatic hydroxycarboxylic acid with respect to the total content of all structural units (1), the structural unit derived from the aromatic dicarboxylic acid (2), and the structural unit derived from the aromatic diol ( It is preferable for the content of 3) to be in the above-mentioned range because the liquid crystalline polyester exhibits excellent liquid crystallinity and excellent melt processability.
- the structural unit (1) derived from the aromatic hydroxycarboxylic acid based on the total content of all structural units is more preferably 40 to 70 mol%, and particularly preferably 45 to 65 mol%.
- the structural unit (2) derived from the aromatic dicarboxylic acid and the structural unit (3) derived from the aromatic diol are more preferably 15 to 30 mol% with respect to the total content of all structural units. It is particularly preferably 17.5 to 27.5 mol%.
- Examples of the monomer that forms the structural unit represented by the formula (1) include 2-hydroxy-6-naphthoic acid, p-hydroxybenzoic acid or 4- (4-hydroxyphenyl) benzoic acid, and these benzenes. Mention may also be made of monomers in which the hydrogen atom of the ring or naphthalene ring is substituted with a halogen atom, an alkyl group having 1 to 10 carbon atoms or an aryl group.
- examples of the monomer forming the structural unit containing a 2,6-naphthalenediyl group of the present invention include 2-hydroxy-6-naphthoic acid, and further, hydrogen of the naphthalene ring of 2-hydroxy-6-naphthoic acid.
- the atom may be substituted with a halogen atom, an alkyl group having 1 to 10 carbon atoms or an aryl group. Further, it may be used as an ester-forming derivative described later.
- Examples of the monomer that forms the structural unit represented by the formula (2) include 2,6-naphthalenedicarboxylic acid, terephthalic acid, isophthalic acid, or biphenyl-4,4′-dicarboxylic acid, and further, the benzene ring or Mention may also be made of monomers in which the hydrogen atom of the naphthalene ring is substituted with a halogen atom, an alkyl group having 1 to 10 carbon atoms or an aryl group.
- the monomer that forms the structural unit containing a 2,6-naphthalenediyl group of the present invention is 2,6-naphthalenedicarboxylic acid
- the hydrogen atom of the naphthalene ring of 2,6-naphthalenedicarboxylic acid is It may be substituted with a halogen atom, an alkyl group having 1 to 10 carbon atoms or an aryl group. Further, it may be used as an ester-forming derivative described later.
- Examples of the monomer that forms the structural unit represented by the formula (3) include 2,6-naphthalenediol, hydroquinone, resorcin, or 4,4′-dihydroxybiphenyl, and further, a hydrogen atom of these benzene ring or naphthalene ring. May be a monomer substituted with a halogen atom, an alkyl group having 1 to 10 carbon atoms or an aryl group.
- the monomer that forms the structural unit having a 2,6-naphthalenediyl group of the present invention is 2,6-naphthalenediol
- the hydrogen atom of the naphthalene ring of 2,6-naphthalenediol is a halogen atom.
- the alkyl group or aryl group having 1 to 10 carbon atoms may be substituted. Further, it may be used as an ester-forming derivative described later.
- the structural unit represented by the formula (1), the structural unit represented by the formula (2), or the structural unit represented by the formula (3) are all in the aromatic ring (benzene ring or naphthalene ring). It may have a substituent (halogen atom, alkyl group having 1 to 10 carbon atoms, aryl group). When these substituents are illustrated, as a halogen atom, a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom are mentioned, for example.
- the alkyl group having 1 to 10 carbon atoms is an alkyl group represented by a methyl group, an ethyl group, a propyl group, a butyl group, a hexyl group, an octyl group, a decyl group, etc., and these are linear or branched. It may be an alicyclic group.
- examples of the aryl group include aryl groups having 6 to 20 carbon atoms represented by phenyl group, naphthyl group and the like.
- the monomer that forms the structural unit represented by the formula (1), the structural unit represented by the formula (2), or the structural unit represented by the formula (3) facilitates polymerization in the process of producing the polyester, It is preferable to use an ester-forming derivative.
- This ester-forming derivative refers to a monomer having a group that promotes an ester formation reaction. Specifically, an ester-forming derivative obtained by converting a carboxyl group in a monomer molecule into a haloformyl group or an acyloxycarbonyl group, And highly reactive derivatives such as ester-forming derivatives in which the hydroxyl group (hydroxyl group) in the monomer molecule is an acyloxyl group.
- the liquid crystal polyester described in JP-A-2005-272810 is preferable from the viewpoint of improving heat resistance and melt tension.
- the content of the structural unit (I) derived from 2-hydroxy-6-naphthoic acid is 40 to 74.8 mol%
- the content of the structural unit (II) derived from hydroquinone is 12.5 to
- the content of structural unit (III) derived from 30 mol%, 2,6-naphthalenedicarboxylic acid is 12.5 to 30 mol%
- the content of structural unit (IV) derived from terephthalic acid is 0.2 to 15
- the molar ratio of the structural units (III) and (IV) satisfies the relationship of (III) / ⁇ (III) + (IV) ⁇ ⁇ 0.5.
- the content of the structural unit (I) is 40 to 64.5 mol% and the content of the structural unit (II) is 17.5 to 30 mol% with respect to the total content of all the structural units.
- the content of the structural unit (III) is 17.5 to 30 mol%
- the content of the structural unit (IV) is 0.5 to 12 mol%
- the content of the structural unit (I) is 50 to 58 mol%
- the content of the structural unit (II) is 20 to 25 mol%
- the structural unit is based on the total content of all structural units.
- the content of (III) is 20 to 25 mol%
- the content of the structural unit (IV) is 2 to 10 mol%
- the molar ratio of the structural units (III) and (IV) is (III) / Those satisfying ⁇ (III) + (IV) ⁇ ⁇ 0.6 may be mentioned.
- a known method can be adopted as a method for producing the liquid crystal polyester.
- a hydroxyl group in the monomer molecule is converted to an acyloxyl group using a lower carboxylic acid. It is preferable to use a derivative converted into Acylation can usually be achieved by reacting a monomer having a hydroxyl group with acetic anhydride. Such an ester-forming derivative by acylation can be polymerized by deacetic acid polycondensation, and a polyester can be easily produced.
- a known method for example, a method described in JP-A No. 2002-146003 can be applied. That is, a monomer corresponding to the structural unit represented by the formula (1), the structural unit represented by the formula (2), and the structural unit represented by the formula (3) is selected, and includes a 2,6-naphthalenediyl group.
- the monomer charge is adjusted so that the monomer corresponding to the structural unit is 40 mol% or more based on the total content of all monomers. Subsequently, if necessary, the monomer is converted into an ester-forming derivative and then melt polycondensed to obtain a relatively low molecular weight aromatic liquid crystal polyester (hereinafter abbreviated as “prepolymer”).
- the prepolymer is made into a powder and heated to solid-phase polymerize to obtain a liquid crystal polyester.
- solid phase polymerization the polymerization is more likely to proceed and a high molecular weight can be achieved.
- the prepolymer may be cooled and solidified and then pulverized.
- the average particle diameter of the powder is preferably 0.05 mm or more and 3 mm or less, and more preferably 0.05 mm or more and 1.5 mm or less, because the degree of polymerization of the aromatic liquid crystal polyester is accelerated. Furthermore, if it is 0.1 mm or more and 1 mm or less, since the high polymerization degree of liquid crystalline polyester is accelerated
- the heating in solid phase polymerization is usually performed while raising the temperature, for example, from room temperature to a temperature that is 20 ° C. lower than the flow start temperature of the prepolymer.
- the temperature raising time at this time is not particularly limited, but is preferably within 1 hour from the viewpoint of shortening the reaction time.
- the heating in the solid-phase polymerization is performed from a temperature 20 ° C. or more lower than the flow start temperature of the prepolymer to a temperature of 280 ° C. or more.
- the temperature increase is preferably performed at a temperature increase rate of 0.3 ° C./min or less. This rate of temperature rise is preferably 0.1 to 0.15 ° C./min. If the rate of temperature increase is 0.3 ° C./min or less, sintering between powder particles is difficult to occur, which is preferable in terms of facilitating production of a liquid crystal polyester having a high degree of polymerization.
- the heating in the solid phase polymerization varies depending on the monomer type of the aromatic diol or aromatic dicarboxylic acid component of the obtained liquid crystalline resin, preferably at a temperature of 280 ° C. or higher, preferably The reaction is preferably carried out in the range of 280 ° C. to 400 ° C. for 30 minutes or longer.
- the reaction is preferably performed at a reaction temperature of 280 to 350 ° C. for 30 minutes to 30 hours, and more preferably at a reaction temperature of 285 to 340 ° C. for 30 minutes to 20 hours.
- the flow start temperature of the liquid crystal polyester according to the present invention is a value measured for the pellet obtained by melt kneading using an extruder for the liquid crystal polyester (powder or pellet) obtained by the above production method. Means. It is essential that the pellet has a flow start temperature of 280 ° C. or higher from the viewpoint of improving heat resistance, particularly heat resistance that can withstand solder reflow processing as a high-density mounting technique, and in particular from 290 ° C. to 380 ° C. If it exists, since heat resistance is high and the decomposition degradation of the polymer at the time of shaping
- the flow start temperature is a liquid crystalline polyester using a capillary rheometer equipped with a die having an inner diameter of 1 mm and a length of 10 mm and a heating rate of 4 ° C./min under a load of 9.8 MPa (100 kgf / cm 2 ).
- Is a temperature at which the melt viscosity is 4800 Pa ⁇ s (48000 poise) when extruded from a nozzle for example, Naoyuki Koide, “Liquid Crystal Polymers—Synthesis, Molding, Applications”, pages 95 to 105, CMC, 1987 (See June 5, 2006)
- the liquid crystal polyester having the predetermined structural unit composition thus obtained is excellent in water vapor barrier properties, and preferably has a thickness of 50 ⁇ m, and when measured at a temperature of 40 ° C. and a relative humidity of 90%, It has a water vapor permeability of 0.005 g / m 2 ⁇ 24 h or less.
- a resin simple substance (powder or pellet) obtained by the above-mentioned liquid crystal polyester production method Pellets are obtained by melting and kneading in a range from a temperature 10 ° C. lower than the flow start temperature to a temperature 100 ° C. higher than the flow start temperature. From the viewpoint of preventing thermal deterioration of the liquid crystalline polyester, the temperature at which the melt kneading is performed is preferably in the range of a temperature that is 10 ° C.
- a temperature that is 70 ° C. higher than the flow start temperature a temperature that is 70 ° C. higher than the flow start temperature, and more preferably higher than the flow start temperature.
- the temperature ranges from a temperature 10 ° C. lower to a temperature 50 ° C. higher than the flow start temperature.
- the liquid crystal polyester used in the present invention can be made into a liquid crystal polyester resin composition by adding a filler or the like to the liquid crystal polyester.
- glass fiber such as milled glass fiber and chopped glass fiber, glass beads, hollow glass sphere, glass powder, mica, talc, clay, silica, alumina, potassium titanate, wollastonite, carbonic acid Calcium (heavy, light, colloid, etc.), magnesium carbonate, basic magnesium carbonate, sodium sulfate, calcium sulfate, barium sulfate, calcium sulfite, aluminum hydroxide, magnesium hydroxide, calcium hydroxide, calcium silicate, silica sand, Silica, quartz, titanium oxide, zinc oxide, iron oxide graphite, molybdenum, asbestos, silica alumina fiber, alumina fiber, gypsum fiber, carbon fiber, carbon black, white carbon, diatomaceous earth, bentonite, sericite, shirasu, graphite Etc.
- glass fiber such as milled glass fiber and chopped glass fiber, glass beads, hollow glass sphere, glass powder, mica, talc, clay, silica, a
- Machine filler potassium titanate whisker, alumina whisker, aluminum borate whisker, silicon carbide whisker, metallic or non-metallic whiskers such as silicon nitride-containing whisker, and mixtures of two or more of these and the like.
- glass fiber, glass powder, mica, talc, carbon fiber and the like are preferable.
- the filler may have been surface-treated with a surface treatment agent.
- a surface treatment agent reactive coupling agents such as silane coupling agents, titanate coupling agents, borane coupling agents, higher fatty acids, higher fatty acid esters, higher fatty acid metal salts, fluorocarbon surfactants, etc. And other lubricants.
- the amount of these fillers used is usually in the range of 0.1 to 400 parts by weight, preferably 10 to 400 parts by weight, and more preferably 10 to 250 parts by weight with respect to 100 parts by weight of the aromatic liquid crystalline polyester. Range.
- liquid crystal polyester resin composition may contain a thermoplastic resin or an additive other than the liquid crystal polyester in addition to the filler.
- thermoplastic resin examples include polycarbonate resin, polyamide resin, polysulfone resin, polyphenylene sulfide resin, polyphenylene ether resin, polyether ketone resin, and polyetherimide resin.
- additives include mold release improvers such as fluororesins and metal soaps, nucleating agents, antioxidants, stabilizers, plasticizers, lubricants, anti-coloring agents, coloring agents, ultraviolet absorbers, and antistatic agents. Agents, lubricants and flame retardants.
- the liquid crystal polyester resin composition is produced, for example, by mixing the liquid crystal polyester obtained as described above with the filler as described above, a thermoplastic resin or an additive used as necessary. Can do.
- the mixing at this time may use a mortar, a Henschel mixer, a ball mill, a ribbon blender, etc., and may use a melt kneader such as a single screw extruder, a twin screw extruder, a Banbury mixer, a roll, a Brabender, a kneader. It is preferable to carry out under the above melt kneading conditions.
- the maximum value of the melt tension measured at a temperature higher than the flow start temperature of the pellet obtained by melt-kneading the liquid crystal polyester (powder or pellet) obtained by the above production method is It is preferably 0.0098N or more (preferably 0.015N or more, more preferably 0.020N or more). Furthermore, a film can be stably formed by using a liquid crystal polyester having a maximum melt tension of 0.0098 N or more measured at a temperature 25 ° C. higher than the flow start temperature.
- This melt tension is a melt viscosity measurement tester (flow characteristic tester) filled with pellets obtained by melt kneading the liquid crystalline polyester (powder or pellets) obtained by the above production method, with a cylinder barrel diameter of 1 mm, The extrusion speed of the piston is 5 mm / min, and means the tension (unit: N) when the sample is taken up into a thread shape and automatically broken by a variable speed winder.
- the insulating film 10 for electromagnetic coils according to the present invention can be manufactured, for example, by the method described below.
- the liquid crystalline polyester is extruded in a cylindrical shape from, for example, a T-die method of winding the molten resin from a T-die or an extruder provided with an annular die, A film or sheet obtained by an inflation film formation method that is cooled and wound, a film or sheet obtained by a hot press method or a solvent casting method, or a sheet obtained by an injection molding method or an extrusion method is further uniaxially stretched or biaxially A film or sheet obtained by axial stretching can also be used.
- a film or sheet can be obtained by dry blending the component powders or pellets at the time of molding and melt molding without going through a kneading step in advance.
- a uniaxially stretched film or a biaxially stretched film obtained by winding the molten resin extruded through the T die while being stretched in the winder direction (longitudinal direction) is preferably used.
- the setting conditions of the extruder at the time of film formation of the uniaxially stretched film can be appropriately set according to the structural unit composition of the liquid crystalline polyester, but the cylinder set temperature is preferably in the range of 200 to 360 ° C., more preferably in the range of 230 to 350 ° C. preferable. If it is out of the above range, the liquid crystal polyester may be thermally decomposed or film formation may be difficult.
- the slit interval of the T die is preferably 0.2 to 2 mm, and more preferably 0.2 to 1.2 mm.
- the draft ratio of the uniaxially stretched film is preferably in the range of 1.1 to 40, more preferably 10 to 40, and particularly preferably 15 to 35.
- the draft ratio is a value obtained by dividing the cross-sectional area of the T-die slit by the cross-sectional area of the film perpendicular to the longitudinal direction.
- This draft ratio can be set by controlling the setting conditions of the extruder, the winding speed, and the like.
- a biaxially stretched film is obtained by melt-extruding a liquid crystalline polyester under the same setting conditions of an extruder as that for forming a uniaxially stretched film.
- a melt sheet extruded from a T-die is longitudinally and perpendicular to the longitudinal direction (lateral direction). Or the melt sheet extruded from the T-die is first stretched in the longitudinal direction, and then the stretched sheet is stretched in the transverse direction from the tenter at a high temperature of 100 to 300 ° C. in the same process. It can be obtained by a sequential stretching method or the like.
- the setting conditions of the extruder include a cylinder set temperature of preferably 200 to 360 ° C., more preferably 230 to 350 ° C., and a T-die slit interval of preferably 0.2 to 1.2 mm. It is a range.
- the stretch ratio is preferably 1.2 to 40 times in the longitudinal direction and 1.2 to 20 times in the transverse direction. If the stretch ratio is outside the above range, the strength of the film may be insufficient, or it may be difficult to obtain a film having a uniform thickness.
- An inflation film obtained by forming a melt sheet extruded from a cylindrical die by an inflation method is also preferably used. That is, the liquid crystalline polyester is supplied to a melt-kneading extruder equipped with a die having an annular slit and melt-kneaded at a cylinder set temperature of 200 to 360 ° C., preferably 230 to 350 ° C. The molten resin is extruded upward or downward as a film.
- the interval between the annular slits is usually 0.1 to 5 mm, preferably 0.2 to 2 mm, more preferably 0.6 to 1.5 mm.
- the diameter of the annular slit is usually 20 to 1000 mm, preferably 25 to 600 mm.
- a draft in the longitudinal direction (MD) is applied to the melt-extruded molten resin film, and air or an inert gas such as nitrogen gas is blown from the inside of the tubular film, so that a transverse direction (TD) perpendicular to the longitudinal direction (TD) ) Is expanded and stretched.
- the preferred blow ratio (lateral stretch ratio: inflation bubble diameter / annular slit diameter) is 1.5 to 10, more preferably 2 to 5, and a preferred drawdown ratio (MD
- the draw ratio (bubble take-off speed / resin discharge speed) is 1.5 to 50, more preferably 5 to 30.
- a so-called B type (wine glass type) is preferably selected as the bubble shape. If the setting conditions during inflation film formation are outside the above range, it is not preferable in that it may be difficult to obtain a high-strength electromagnetic coil insulating film 10 having a uniform thickness and no wrinkles.
- the expanded film is usually taken around by passing it through a nip roll after the circumference is air-cooled or water-cooled.
- conditions can be selected such that the cylindrical melt film expands to a smooth surface with a uniform thickness in accordance with the electromagnetic coil insulating film 10.
- the thickness of the electromagnetic coil insulating film 10 used in the present invention is not particularly limited, but is preferably 3 to 1000 ⁇ m, more preferably 10 to 200 ⁇ m, and still more preferably 12 to 150 ⁇ m. By setting the thickness within the above range, the electromagnetic coil insulating film has excellent heat resistance and electrical insulation, can be light and thin, has good mechanical strength, has flexibility, and It can be inexpensive.
- the electromagnetic coil insulating film 10 thus obtained is excellent in water vapor barrier properties by being composed of the liquid crystal polyester having the predetermined structural unit composition.
- Insulating film for electromagnetic coil obtained when measured at a temperature 40 ° C. and 90% relative humidity, water vapor permeability, typically less than 0.1g / m 2 ⁇ 24h, preferably not more than 0.05g / m 2 ⁇ 24h , more preferably 0.01g / m 2 ⁇ 24h or less, more preferably less than or equal to 0.005g / m 2 ⁇ 24h.
- the surface of the electromagnetic coil insulating film 10 can be subjected to surface treatment in advance.
- surface treatment methods include corona discharge treatment, plasma treatment, flame treatment, sputtering treatment, solvent treatment, ultraviolet treatment, polishing treatment, infrared treatment, and ozone treatment.
- the electromagnetic coil insulating film 10 may be colorless or may contain a coloring component such as a pigment or a dye.
- a coloring component such as a pigment or a dye.
- the method of containing the coloring component include a method of kneading the coloring component in advance at the time of film formation and a method of printing the coloring component on the substrate. Further, a colored film and a colorless film may be bonded together.
- the electromagnetic coil insulating film 10 may be subjected to a surface treatment as necessary within a range that does not impair the characteristics required for the electromagnetic coil insulating film 10.
- Examples of the surface treatment method include corona discharge treatment, flame treatment, sputtering treatment, solvent treatment, UV treatment, and plasma treatment.
- the electromagnetic coil insulating film 10 according to the present invention is preferably composed of a liquid crystal polyester having a flow start temperature of 280 ° C. or higher from the viewpoint of improving heat resistance.
- the electromagnetic coil insulating film 10 made of such a liquid crystal polyester does not soften or break due to heat generated by the operation of the motor 1 or the like (maximum reached temperature of about 100 ° C.).
- the electromagnetic coil insulating film 10 according to the present invention is made of a liquid crystal polyester having a specific structure, it has excellent water vapor barrier properties.
- the electromagnetic coil insulating film 10 according to the present invention is excellent not only in electrical insulation, molding processability and heat resistance but also in water vapor barrier properties, the motor 1 using the electromagnetic coil insulating film 10 is excellent. As a result, the practical durability of the motor 1 can be increased.
- Embodiment 2 of the present invention (embodiment in which the electromagnetic coil insulating film according to the present invention is applied to a transformer).
- the transformer 11 has a rectangular parallelepiped box-shaped casing 12, and the upper surface of the casing 12 is open.
- two (primary side and secondary side) coils 13 are housed in such a manner that their interlayers and upper and lower sides are insulated and laminated by electromagnetic coil insulating films 15, respectively.
- a pair of magnetic cores 16 are assembled to the casing 12 so as to sandwich the casing 12 from above and below so as to form a magnetic path around the coil 13.
- each insulating film 15 for electromagnetic coils is comprised from the liquid crystalline polyester of specific structure similarly to the insulating film 10 for electromagnetic coils for motors in Embodiment 1 mentioned above, respectively,
- the liquid crystalline polyester of this specific structure is The flow starting temperature is preferably 280 ° C. or higher.
- the thickness of the electromagnetic coil insulating film 15 can be appropriately selected according to the output of the transformer 11, the arrangement state of the coil 13, and the like. However, if the thickness of the electromagnetic coil insulating film 15 is too thin, there is a risk of impairing the insulating function, which is the original function of the electromagnetic coil insulating film 15, but the moldability is lost as the thickness increases. Therefore, it is desirable that the thickness of the electromagnetic coil insulating film 15 be in a range (for example, 1 to 1000 ⁇ m) within which both insulation and moldability can be secured.
- liquid crystal polyester having a specific structure as a raw material of the electromagnetic coil insulating film 15 and the method for manufacturing the electromagnetic coil insulating film 15 using the liquid crystal polyester having the specific structure are the same as those in the first embodiment. is there.
- these electromagnetic coil insulating films 15 exhibit the same effects as the electromagnetic coil insulating film 10 for motors in the first embodiment described above.
- the electromagnetic coil insulating film 15 according to the present invention is excellent not only in electrical insulation, molding processability and heat resistance, but also in water vapor barrier properties and has excellent molding processability, and thus has a degree of freedom during bending. Is expensive. For this reason, if the transformer 11 is assembled using this electromagnetic coil insulating film 15, the practical durability of the transformer 11 can be enhanced.
- the substantial copolymer mole fraction is as follows: Structural unit represented by the above formula (1): Structural unit represented by the above formula (2): Formula (3) above In terms of the structural unit shown, it is 55 mol%: 22.5 mol%: 22.5 mol%. Further, in the liquid crystal polyester of Synthesis Example 1, the copolymerization mole fraction of the structural unit containing 2,6-naphthalenediyl group with respect to the total content of these structural units is 72.5 mol%. ⁇ Synthesis Example 2>
- Synthesis Example 2 The powder obtained in the same manner as in Synthesis Example 1 was heated from 25 ° C. to 250 ° C. over 1 hour, then heated from the same temperature (250 ° C.) to 293 ° C. over 5 hours, and then the same temperature ( (293 ° C.) for 5 hours to carry out solid phase polymerization. Thereafter, the powder after solid-phase polymerization was cooled to obtain a powdery liquid crystal polyester. This is referred to as Synthesis Example 2.
- the substantial copolymer mole fraction is as follows: Structural unit represented by the above formula (1): Structural unit represented by the above formula (2): Formula (3) above In terms of the structural unit shown, it is 55 mol%: 22.5 mol%: 22.5 mol%. Further, in the liquid crystal polyester of Synthesis Example 2, the copolymerization mole fraction of the structural unit containing 2,6-naphthalenediyl group with respect to the total content of these structural units is 72.5 mol%. ⁇ Synthesis Example 3>
- Synthesis Example 3 The powder obtained in the same manner as in Synthesis Example 1 was heated from 25 ° C. to 250 ° C. over 1 hour, then heated from the same temperature (250 ° C.) to 310 ° C. over 10 hours, and then the same temperature ( (310 ° C.) for 5 hours to carry out solid phase polymerization. Thereafter, the powder after solid-phase polymerization was cooled to obtain a powdery liquid crystal polyester. This is referred to as Synthesis Example 3.
- the substantial copolymer mole fraction is as follows: structural unit represented by the above formula (1): structural unit represented by the above formula (2): above formula (3) In terms of the structural unit shown, it is 55 mol%: 22.5 mol%: 22.5 mol%. Further, in the liquid crystal polyester of Synthesis Example 3, the copolymerization mole fraction of the structural unit containing 2,6-naphthalenediyl group with respect to the total content of these structural units is 72.5 mol%.
- liquid crystal polyester thus obtained was cooled to room temperature and pulverized by a pulverizer to obtain a liquid crystal polyester powder (prepolymer) having a particle size of about 0.1 to 1 mm.
- the powder thus obtained was heated from 25 ° C. to 250 ° C. over 1 hour, then heated from the same temperature (250 ° C.) to 285 ° C. over 5 hours, and then at the same temperature (285 ° C.) for 3 hours.
- the mixture was kept warm and subjected to solid phase polymerization. Thereafter, the powder after solid-phase polymerization was cooled to obtain a powdery liquid crystal polyester. This is referred to as Synthesis Example 4.
- the substantial copolymer mole fraction is as follows: structural unit represented by the above formula (1): structural unit represented by the above formula (2): above formula (3) In terms of the structural unit shown, it was 60 mol%: 20 mol%: 20 mol%. ⁇ Measurement of flow start temperature>
- melt tension of the liquid crystal polyester in pellet form was measured for each of Synthesis Examples 1 to 4. At this time, for each pellet, the melt tension measurement was performed at a temperature higher than the flow start temperature of the pellet, and the maximum value of the melt tension was obtained. In addition, the temperature at which the sample could not be pulled into a string and the melt tension measurement could not be performed was also examined.
- melt viscosity measuring tester Capillograph 1B type manufactured by Toyo Seiki Seisakusho Co., Ltd.
- a melt viscosity measuring tester Capillograph 1B type manufactured by Toyo Seiki Seisakusho Co., Ltd.
- a piston extrusion speed of 5 mm / min
- a variable speed winder The sample was taken up into a thread shape while automatically increasing the speed, and the tension when the sample broke was defined as the melt tension (unit: N).
- melt tension measurement when the measurement temperature was 300 ° C. or less, the sample could not be drawn into a thread shape. On the other hand, when the measurement temperature was 310 ° C. or higher, the resin flowed without being in the form of yarn, so that melt tension measurement was impossible. Although melt tension measurement was attempted even at a measurement temperature of 300 to 310 ° C., the sample may be pulled into a thread shape, but the melt tension is too low and the thread breaks, so the melt tension can be calculated. could not. ⁇ Example 1>
- an insulating film for an electromagnetic coil having a thickness of 25 ⁇ m was produced. That is, the liquid crystalline polyester powder was melted in a single screw extruder (screw diameter 50 mm) and extruded into a film form from a T die (lip length 300 mm, lip clearance 1 mm, die temperature 350 ° C.) at the tip of the single screw extruder. Then, an electromagnetic coil insulating film (Example 1) having a thickness of 25 ⁇ m was produced.
- An insulating film for an electromagnetic coil having a thickness of 50 ⁇ m was produced using the liquid crystalline polyester obtained in Synthesis Example 3. That is, the liquid crystalline polyester powder was melted in a single screw extruder (screw diameter 50 mm) and extruded into a film form from a T die (lip length 300 mm, lip clearance 1 mm, die temperature 350 ° C.) at the tip of the single screw extruder. Then, an electromagnetic coil insulating film (Example 1) having a thickness of 50 ⁇ m was produced.
- the water vapor permeability was determined as an index of the water vapor barrier property.
- insulation for electromagnetic coils was performed at a temperature of 40 ° C. and a relative humidity of 90% using a gas permeability / moisture permeability measuring device (“GTR-30X” manufactured by GTR Tech Co., Ltd.). The water vapor permeability of the film was measured.
- Example 1 had an extremely high water vapor barrier property of the insulating film for electromagnetic coil as compared with Comparative Example 1. Also in Example 2 was 0.0030g / m 2 ⁇ 24h, it is very high water vapor barrier property of the insulating film for the electromagnetic coil has been found.
- the present invention can be applied to a motor used in a drive system of a vehicle such as a train, and a large transformer used in a power plant / substation.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Physics & Mathematics (AREA)
- Polyesters Or Polycarbonates (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Insulating Of Coils (AREA)
- Organic Insulating Materials (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
Description
本願は、2009年12月10日に、日本に出願された特願2009-280038号に基づき優先権を主張し、その内容をここに援用する。
(1)-O-Ar1 -CO-
(2)-CO-Ar2 -CO-および
(3)-O-Ar3 -O-
(式中、Ar1 は、2,6-ナフタレンジイル基、1,4-フェニレン基または4,4’-ビフェニレン基を表し;Ar2 およびAr3 は、それぞれ独立に、2,6-ナフタレンジイル基、1,4-フェニレン基、1,3-フェニレン基または4,4’-ビフェニリレン基を表し;Ar1 、Ar2 またはAr3で表される基上の水素原子は、それぞれ独立に、ハロゲン原子、炭素数1~10のアルキル基または炭素数6~20のアリール基で置換されていてもよい。)
[発明の実施の形態1]
<モーターの構成>
<液晶ポリエステル>
(1)-O-Ar1 -CO-
(2)-CO-Ar2 -CO-および
(3)-O-Ar3 -O-
(式中、Ar1 は、2,6-ナフタレンジイル基、1,4-フェニレン基または4,4’-ビフェニリレン基を表し;Ar2 およびAr3 は、それぞれ独立に、2,6-ナフタレンジイル基、1,4-フェニレン基、1,3-フェニレン基または4,4’-ビフェニリレン基を表し;Ar1 、Ar2 またはAr3で表される基上の水素原子は、それぞれ独立に、ハロゲン原子、炭素数1~10のアルキル基または炭素数6~20のアリール基で置換されていてもよい。)
<電磁コイル用絶縁フィルムの製造方法>
[発明の実施の形態2]
<トランスの構成>
<合成例1>
<合成例2>
<合成例3>
<合成例4>
<流動開始温度の測定>
<メルトテンションの測定>
<実施例1>
<実施例2>
<比較例1>
<水蒸気バリア性の評価>
2……ハウジング
3……ステーター
5……出力軸
6……軸受
7……ローター
8……鉄心
9……コイル
10……モーター用の電磁コイル用絶縁フィルム
11……トランス
12……ケーシング
13……コイル
15……トランス用の電磁コイル用絶縁フィルム
16……磁心
Claims (7)
- 液晶ポリエステルから構成されている電磁コイル用絶縁フィルムであって、
前記液晶ポリエステルが、以下の式(1)で示される構造単位、式(2)で示される構造単位および式(3)で示される構造単位を有し、全構造単位の合計含有量に対して、2,6-ナフタレンジイル基を含む構造単位の含有量が40モル%以上である電磁コイル用絶縁フィルム:
(1)-O-Ar1 -CO-
(2)-CO-Ar2 -CO-および
(3)-O-Ar3 -O-
(式中、Ar1 は、2,6-ナフタレンジイル基、1,4-フェニレン基または4,4’-ビフェニリレン基を表し;Ar2 およびAr3 は、それぞれ独立に、2,6-ナフタレンジイル基、1,4-フェニレン基、1,3-フェニレン基または4,4’-ビフェニレン基を表し;Ar1 、Ar2 またはAr3で表される基上の水素原子は、それぞれ独立に、ハロゲン原子、炭素数1~10のアルキル基または炭素数6~20のアリール基で置換されていてもよい)。 - 前記液晶ポリエステルは、280℃以上の流動開始温度を有する請求項1に記載の電磁コイル用絶縁フィルム。
- 前記液晶ポリエステルが、温度40℃および相対湿度90%にて測定したとき、0.1g/m2 ・24h以下の水蒸気透過度を有する請求項1または2に記載の電磁コイル用絶縁フィルム。
- 液晶ポリエステルから構成されている電磁コイル用絶縁フィルムであって、
前記液晶ポリエステルが、温度40℃および相対湿度90%にて測定したとき、0.005g/m2 ・24h以下の水蒸気透過度を有する電磁コイル用絶縁フィルム。 - 液晶ポリエステルから構成されている電磁コイル用絶縁フィルムであって、
前記液晶ポリエステルは、フィルムの厚さを50μmとし、温度40℃および相対湿度90%にて測定したとき、0.005g/m2 ・24h以下の水蒸気透過度を有する電磁コイル用絶縁フィルム。 - 請求項1乃至5のいずれか一項に記載の電磁コイル用絶縁フィルムが用いられているモーター。
- 請求項1乃至5のいずれか一項に記載の電磁コイル用絶縁フィルムが用いられているトランス。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020127016440A KR20120123287A (ko) | 2009-12-10 | 2010-12-06 | 전자 코일용 절연 필름, 및 그것을 구비한 모터 및 트랜스 |
US13/514,404 US20120277398A1 (en) | 2009-12-10 | 2010-12-06 | Insulating film for electromagnetic coil, and motor and transformer having the same |
CN2010800556845A CN102639598A (zh) | 2009-12-10 | 2010-12-06 | 电磁线圈用绝缘膜以及具备其的马达和变压器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009-280038 | 2009-12-10 | ||
JP2009280038 | 2009-12-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011071003A1 true WO2011071003A1 (ja) | 2011-06-16 |
Family
ID=44145547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/071803 WO2011071003A1 (ja) | 2009-12-10 | 2010-12-06 | 電磁コイル用絶縁フィルムおよびそれを備えたモーターおよびトランス |
Country Status (6)
Country | Link |
---|---|
US (1) | US20120277398A1 (ja) |
JP (1) | JP2011140638A (ja) |
KR (1) | KR20120123287A (ja) |
CN (1) | CN102639598A (ja) |
TW (1) | TW201141905A (ja) |
WO (1) | WO2011071003A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5943505B2 (ja) * | 2011-10-31 | 2016-07-05 | 住友化学株式会社 | 高電圧コイル |
JP6086196B2 (ja) * | 2012-09-28 | 2017-03-01 | 住友化学株式会社 | 液晶ポリエステルフィルムの製造方法 |
WO2015015881A1 (ja) * | 2013-07-29 | 2015-02-05 | 三菱電機株式会社 | ヒートポンプ装置 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03122116A (ja) * | 1989-10-06 | 1991-05-24 | Mitsui Petrochem Ind Ltd | 共重合ポリエチレンテレフタレートおよびその用途 |
JPH11279269A (ja) * | 1998-03-31 | 1999-10-12 | Mitsubishi Rayon Co Ltd | ポリエステル樹脂、その成形体および容器 |
JP2005213418A (ja) * | 2004-01-30 | 2005-08-11 | Sumitomo Chemical Co Ltd | 液晶ポリエステル樹脂組成物 |
JP2006035504A (ja) * | 2004-07-23 | 2006-02-09 | Toray Ind Inc | モーター絶縁用ポリエステルフィルム、およびトランス絶縁用ポリエステルフィルム |
JP2007154169A (ja) * | 2005-11-08 | 2007-06-21 | Sumitomo Chemical Co Ltd | 液晶ポリエステル樹脂組成物及び電子部品用成形品 |
WO2008149869A1 (ja) * | 2007-06-04 | 2008-12-11 | Teijin Dupont Films Japan Limited | 電気絶縁用二軸配向フィルム |
JP2009155623A (ja) * | 2007-12-03 | 2009-07-16 | Sumitomo Chemical Co Ltd | 液晶ポリエステル樹脂組成物及びその成形体 |
-
2010
- 2010-12-03 JP JP2010270332A patent/JP2011140638A/ja active Pending
- 2010-12-06 WO PCT/JP2010/071803 patent/WO2011071003A1/ja active Application Filing
- 2010-12-06 US US13/514,404 patent/US20120277398A1/en not_active Abandoned
- 2010-12-06 KR KR1020127016440A patent/KR20120123287A/ko not_active Application Discontinuation
- 2010-12-06 CN CN2010800556845A patent/CN102639598A/zh active Pending
- 2010-12-09 TW TW099143067A patent/TW201141905A/zh unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03122116A (ja) * | 1989-10-06 | 1991-05-24 | Mitsui Petrochem Ind Ltd | 共重合ポリエチレンテレフタレートおよびその用途 |
JPH11279269A (ja) * | 1998-03-31 | 1999-10-12 | Mitsubishi Rayon Co Ltd | ポリエステル樹脂、その成形体および容器 |
JP2005213418A (ja) * | 2004-01-30 | 2005-08-11 | Sumitomo Chemical Co Ltd | 液晶ポリエステル樹脂組成物 |
JP2006035504A (ja) * | 2004-07-23 | 2006-02-09 | Toray Ind Inc | モーター絶縁用ポリエステルフィルム、およびトランス絶縁用ポリエステルフィルム |
JP2007154169A (ja) * | 2005-11-08 | 2007-06-21 | Sumitomo Chemical Co Ltd | 液晶ポリエステル樹脂組成物及び電子部品用成形品 |
WO2008149869A1 (ja) * | 2007-06-04 | 2008-12-11 | Teijin Dupont Films Japan Limited | 電気絶縁用二軸配向フィルム |
JP2009155623A (ja) * | 2007-12-03 | 2009-07-16 | Sumitomo Chemical Co Ltd | 液晶ポリエステル樹脂組成物及びその成形体 |
Also Published As
Publication number | Publication date |
---|---|
US20120277398A1 (en) | 2012-11-01 |
KR20120123287A (ko) | 2012-11-08 |
CN102639598A (zh) | 2012-08-15 |
JP2011140638A (ja) | 2011-07-21 |
TW201141905A (en) | 2011-12-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8226851B2 (en) | Liquid-crystalline polymer composition containing nanostructured hollow-carbon material and molded article thereof | |
JP5556223B2 (ja) | 液晶高分子組成物、その製造方法及び成形体 | |
JP4701737B2 (ja) | 芳香族液晶ポリエステル及びその用途 | |
JP2011094116A (ja) | 液晶ポリエステル樹脂組成物、成形体および光ピックアップレンズホルダー | |
WO2012137271A1 (ja) | 液晶性ポリエステル樹脂組成物およびそれを用いた金属複合成形品 | |
JP2009001639A (ja) | 耐熱性に優れた樹脂組成物及びその製造方法 | |
JP2011178829A (ja) | 液晶高分子組成物及びその成形体 | |
KR101800459B1 (ko) | 액정 중합체 조성물 및 그의 성형품 | |
TW201224019A (en) | Liquid crystal polyester composition | |
WO2011021543A1 (ja) | 太陽電池用バックシートおよび太陽電池モジュール | |
JP4639756B2 (ja) | 芳香族液晶ポリエステルおよびそのフィルムならびにそれらの用途 | |
JP2011096471A (ja) | シールド層付き携帯電話用ケーブル | |
JP5197553B2 (ja) | 液晶性樹脂組成物及びその成形体 | |
WO2011071003A1 (ja) | 電磁コイル用絶縁フィルムおよびそれを備えたモーターおよびトランス | |
JP2011202062A (ja) | 摺動用熱可塑性樹脂組成物、摺動用熱可塑性樹脂組成物の製造方法および摺動部品 | |
JPWO2019198665A1 (ja) | 液晶ポリエステル樹脂、その製造方法およびそれからなる成形品 | |
JP2015189896A (ja) | 液晶性樹脂組成物およびその成形品 | |
JP6206174B2 (ja) | 液晶性ポリエステル樹脂組成物およびその成形品 | |
JP2011157533A (ja) | 液晶ポリエステル組成物及びそのフィルム | |
JP2004244452A (ja) | 芳香族液晶ポリエステルおよびそのフィルム | |
JP2018104527A (ja) | 液晶ポリエステル樹脂組成物およびそれからなる成形品 | |
JP2010065179A (ja) | 液晶ポリエステル樹脂組成物及びそれを用いてなる成形体 | |
JP5407988B2 (ja) | 液晶性樹脂組成物及びその成形体 | |
JP2012082857A (ja) | 断熱体用外装フィルム及び断熱体 | |
JP2019183041A (ja) | 液晶ポリエステル樹脂、その製造方法およびそれからなる成形品 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201080055684.5 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10835923 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 20127016440 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13514404 Country of ref document: US |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 10835923 Country of ref document: EP Kind code of ref document: A1 |