JPH0551514A - Polyacetal resin composition and product of molding thereof - Google Patents
Polyacetal resin composition and product of molding thereofInfo
- Publication number
- JPH0551514A JPH0551514A JP21104291A JP21104291A JPH0551514A JP H0551514 A JPH0551514 A JP H0551514A JP 21104291 A JP21104291 A JP 21104291A JP 21104291 A JP21104291 A JP 21104291A JP H0551514 A JPH0551514 A JP H0551514A
- Authority
- JP
- Japan
- Prior art keywords
- fatty acid
- polyacetal resin
- resin composition
- felt
- alcohol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920006324 polyoxymethylene Polymers 0.000 title claims abstract description 38
- 229930182556 Polyacetal Natural products 0.000 title claims abstract description 37
- 239000011342 resin composition Substances 0.000 title claims description 12
- 238000000465 moulding Methods 0.000 title description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 54
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 38
- 239000000194 fatty acid Substances 0.000 claims abstract description 38
- 229930195729 fatty acid Natural products 0.000 claims abstract description 38
- 229920005989 resin Polymers 0.000 claims abstract description 31
- 239000011347 resin Substances 0.000 claims abstract description 31
- -1 fatty acid ester Chemical class 0.000 claims abstract description 30
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 27
- 239000002245 particle Substances 0.000 claims abstract description 10
- 150000005846 sugar alcohols Polymers 0.000 claims abstract description 7
- 150000004665 fatty acids Chemical class 0.000 claims description 11
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 9
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 9
- 125000004432 carbon atom Chemical group C* 0.000 claims description 8
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 6
- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 claims description 6
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 claims description 6
- 150000002148 esters Chemical class 0.000 claims description 6
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 claims description 6
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 claims description 4
- NOPFSRXAKWQILS-UHFFFAOYSA-N docosan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCCCCCO NOPFSRXAKWQILS-UHFFFAOYSA-N 0.000 claims description 4
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 claims description 4
- HLZKNKRTKFSKGZ-UHFFFAOYSA-N tetradecan-1-ol Chemical compound CCCCCCCCCCCCCCO HLZKNKRTKFSKGZ-UHFFFAOYSA-N 0.000 claims description 4
- 235000021357 Behenic acid Nutrition 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000005639 Lauric acid Substances 0.000 claims description 3
- 235000021314 Palmitic acid Nutrition 0.000 claims description 3
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- 229940116226 behenic acid Drugs 0.000 claims description 3
- 235000011187 glycerol Nutrition 0.000 claims description 3
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- 229960000735 docosanol Drugs 0.000 claims description 2
- 229940093476 ethylene glycol Drugs 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 229940043348 myristyl alcohol Drugs 0.000 claims description 2
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 229940012831 stearyl alcohol Drugs 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 16
- 239000000463 material Substances 0.000 abstract description 6
- 230000007774 longterm Effects 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 239000008188 pellet Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 238000004898 kneading Methods 0.000 description 3
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 3
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- YZXBAPSDXZZRGB-DOFZRALJSA-N arachidonic acid Chemical compound CCCCC\C=C/C\C=C/C\C=C/C\C=C/CCCC(O)=O YZXBAPSDXZZRGB-DOFZRALJSA-N 0.000 description 2
- ZQPPMHVWECSIRJ-MDZDMXLPSA-N elaidic acid Chemical compound CCCCCCCC\C=C\CCCCCCCC(O)=O ZQPPMHVWECSIRJ-MDZDMXLPSA-N 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- XMHIUKTWLZUKEX-UHFFFAOYSA-N hexacosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O XMHIUKTWLZUKEX-UHFFFAOYSA-N 0.000 description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- UTOPWMOLSKOLTQ-UHFFFAOYSA-N octacosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O UTOPWMOLSKOLTQ-UHFFFAOYSA-N 0.000 description 2
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 229920005672 polyolefin resin Polymers 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 239000012756 surface treatment agent Substances 0.000 description 2
- SZHOJFHSIKHZHA-UHFFFAOYSA-N tridecanoic acid Chemical compound CCCCCCCCCCCCC(O)=O SZHOJFHSIKHZHA-UHFFFAOYSA-N 0.000 description 2
- ZDPHROOEEOARMN-UHFFFAOYSA-N undecanoic acid Chemical compound CCCCCCCCCCC(O)=O ZDPHROOEEOARMN-UHFFFAOYSA-N 0.000 description 2
- OYHQOLUKZRVURQ-NTGFUMLPSA-N (9Z,12Z)-9,10,12,13-tetratritiooctadeca-9,12-dienoic acid Chemical compound C(CCCCCCC\C(=C(/C\C(=C(/CCCCC)\[3H])\[3H])\[3H])\[3H])(=O)O OYHQOLUKZRVURQ-NTGFUMLPSA-N 0.000 description 1
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N 1,1-Diethoxyethane Chemical compound CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 1
- FKOKUHFZNIUSLW-UHFFFAOYSA-N 2-Hydroxypropyl stearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(C)O FKOKUHFZNIUSLW-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- PBWGCNFJKNQDGV-UHFFFAOYSA-N 6-phenylimidazo[2,1-b][1,3]thiazol-5-amine Chemical compound N1=C2SC=CN2C(N)=C1C1=CC=CC=C1 PBWGCNFJKNQDGV-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- DPUOLQHDNGRHBS-UHFFFAOYSA-N Brassidinsaeure Natural products CCCCCCCCC=CCCCCCCCCCCCC(O)=O DPUOLQHDNGRHBS-UHFFFAOYSA-N 0.000 description 1
- 239000005635 Caprylic acid (CAS 124-07-2) Substances 0.000 description 1
- 229920005177 Duracon® POM Polymers 0.000 description 1
- URXZXNYJPAJJOQ-UHFFFAOYSA-N Erucic acid Natural products CCCCCCC=CCCCCCCCCCCCC(O)=O URXZXNYJPAJJOQ-UHFFFAOYSA-N 0.000 description 1
- FPVVYTCTZKCSOJ-UHFFFAOYSA-N Ethylene glycol distearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCCOC(=O)CCCCCCCCCCCCCCCCC FPVVYTCTZKCSOJ-UHFFFAOYSA-N 0.000 description 1
- 235000021353 Lignoceric acid Nutrition 0.000 description 1
- CQXMAMUUWHYSIY-UHFFFAOYSA-N Lignoceric acid Natural products CCCCCCCCCCCCCCCCCCCCCCCC(=O)OCCC1=CC=C(O)C=C1 CQXMAMUUWHYSIY-UHFFFAOYSA-N 0.000 description 1
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- GWFGDXZQZYMSMJ-UHFFFAOYSA-N Octadecansaeure-heptadecylester Natural products CCCCCCCCCCCCCCCCCOC(=O)CCCCCCCCCCCCCCCCC GWFGDXZQZYMSMJ-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- HVUMOYIDDBPOLL-XWVZOOPGSA-N Sorbitan monostearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XWVZOOPGSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- PZQBWGFCGIRLBB-NJYHNNHUSA-N [(2r)-2-[(2s,3r,4s)-3,4-dihydroxyoxolan-2-yl]-2-octadecanoyloxyethyl] octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](OC(=O)CCCCCCCCCCCCCCCCC)[C@H]1OC[C@H](O)[C@H]1O PZQBWGFCGIRLBB-NJYHNNHUSA-N 0.000 description 1
- 239000011354 acetal resin Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- DTOSIQBPPRVQHS-PDBXOOCHSA-N alpha-linolenic acid Chemical compound CC\C=C/C\C=C/C\C=C/CCCCCCCC(O)=O DTOSIQBPPRVQHS-PDBXOOCHSA-N 0.000 description 1
- 235000020661 alpha-linolenic acid Nutrition 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 229940114079 arachidonic acid Drugs 0.000 description 1
- 235000021342 arachidonic acid Nutrition 0.000 description 1
- 229940090958 behenyl behenate Drugs 0.000 description 1
- 125000002511 behenyl 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])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])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 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
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- BYNVYIUJKRRNNC-UHFFFAOYSA-N docosanoic acid;propane-1,2,3-triol Chemical compound OCC(O)CO.CCCCCCCCCCCCCCCCCCCCCC(O)=O BYNVYIUJKRRNNC-UHFFFAOYSA-N 0.000 description 1
- HJJZFSVYWJHHFE-UHFFFAOYSA-N docosanoic acid;propane-1,2-diol Chemical compound CC(O)CO.CCCCCCCCCCCCCCCCCCCCCC(O)=O HJJZFSVYWJHHFE-UHFFFAOYSA-N 0.000 description 1
- 125000003438 dodecyl 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])C([H])([H])C([H])([H])* 0.000 description 1
- DPUOLQHDNGRHBS-KTKRTIGZSA-N erucic acid Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(O)=O DPUOLQHDNGRHBS-KTKRTIGZSA-N 0.000 description 1
- FARYTWBWLZAXNK-WAYWQWQTSA-N ethyl (z)-3-(methylamino)but-2-enoate Chemical compound CCOC(=O)\C=C(\C)NC FARYTWBWLZAXNK-WAYWQWQTSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229960004488 linolenic acid Drugs 0.000 description 1
- KQQKGWQCNNTQJW-UHFFFAOYSA-N linolenic acid Natural products CC=CCCC=CCC=CCCCCCCCC(O)=O KQQKGWQCNNTQJW-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 125000001421 myristyl 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])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- NKBWPOSQERPBFI-UHFFFAOYSA-N octadecyl octadecanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCCCCCCCCCCCCCCCC NKBWPOSQERPBFI-UHFFFAOYSA-N 0.000 description 1
- 229960002446 octanoic acid Drugs 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
- 239000011368 organic material Substances 0.000 description 1
- 125000005704 oxymethylene group Chemical group [H]C([H])([*:2])O[*:1] 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229940093625 propylene glycol monostearate Drugs 0.000 description 1
- WBHHMMIMDMUBKC-XLNAKTSKSA-N ricinelaidic acid Chemical compound CCCCCC[C@@H](O)C\C=C\CCCCCCCC(O)=O WBHHMMIMDMUBKC-XLNAKTSKSA-N 0.000 description 1
- 229960003656 ricinoleic acid Drugs 0.000 description 1
- FEUQNCSVHBHROZ-UHFFFAOYSA-N ricinoleic acid Natural products CCCCCCC(O[Si](C)(C)C)CC=CCCCCCCCC(=O)OC FEUQNCSVHBHROZ-UHFFFAOYSA-N 0.000 description 1
- 102220259718 rs34120878 Human genes 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 150000004671 saturated fatty acids Chemical class 0.000 description 1
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000001587 sorbitan monostearate Substances 0.000 description 1
- 235000011076 sorbitan monostearate Nutrition 0.000 description 1
- 229940035048 sorbitan monostearate Drugs 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 125000004079 stearyl 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])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])[H] 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は特定の炭酸カルシウムと
脂肪酸エステルを含有するポリアセタール樹脂組成物、
更には斯かる組成物よりなるフェルトクラッチ用成形品
及び斯かる成形品とフェルト部材よりなるＶＴＲ、８mm
ビデオ、オーディオカセット又はタイプライター等のト
ルク発生用フェルトクラッチ機構部品に関する。The present invention relates to a polyacetal resin composition containing a specific calcium carbonate and a fatty acid ester,
Further, a molded product for felt clutch made of such a composition, and a VTR made of such molded product and felt member, 8 mm
The present invention relates to a felt clutch mechanism component for torque generation such as a video, audio cassette or typewriter.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】ポリア
セタール樹脂はバランスのとれた機械的性質を有し、耐
摩擦・摩耗特性、耐薬品性、耐熱性、電気特性等に優れ
る為、自動車、電気・電子部品等の摺動部品の分野で広
く利用されている。しかし、かかる分野における要求特
性は次第に高度化しつつあり、摺動特性の一層の向上
と、その長期的な持続性の要求もその一つである。かか
る摺動特性の高度化が要求される摺動部品の代表的な例
として、ＶＴＲ、８mmビデオ、タイプライター等のテー
プ走行系に使用されるフェルトクラッチ機構部品が挙げ
られる。フェルトクラッチ機構部品に求められる摺動特
性としては、摩擦係数は勿論であるが、対フェルトとの
短期的にも長期的にも安定した回転トルクが得られるこ
とが重要である。従来、フェルトクラッチ機構部品の材
料としては、ポリアセタール樹脂が主として用いられて
いる。しかしながら、最近の傾向として、フェルトクラ
ッチ機構部品の小型化、テープ走行の高速化等が進み、
特に長期使用に対するフェルトとの摩擦・摩耗特性、回
転トルクの安定性、スティックスリップ現象（トルクス
ティック）等が悪化する傾向を示し、その改善が望まれ
ていた。これらの問題点を改善する目的で、ポリアセタ
ール樹脂にフッ素樹脂やポリオレフィン系の樹脂、シリ
コーン系樹脂樹脂等他の樹脂の添加混合、更にはグラフ
ァイト、二硫化モリブデン等の固体潤滑剤の配合、又、
脂肪酸、シリコーンオイル、各種鉱油等の添加が行われ
ている。しかしながら、フッ素樹脂やポリオレフィン系
の樹脂の添加は、摺動特性をある程度改善するが、これ
らの樹脂はアセタール樹脂との相溶性に乏しいため、成
形品表面に剥離を生じさせたり、成形金型に析出物を発
生させ易い。又、シリコーンオイル、各種鉱油等の潤滑
油の添加は、磨耗係数や比磨耗量の低減には効果がある
が、対フェルト摺動特性ではむしろ液状物のしみ出しに
より、ポリアセタール樹脂磨耗粉の凝集が発生し、かえ
って回転トルクの上昇を引き起こす場合がある。又、押
出加工性あるいは成形加工性で問題となる場合が多い。
又、グラファイト、二硫化モリブデン等の固体潤滑剤の
添加は磨耗による磨耗粉のため、フェルトへの凝集、固
着による回転トルクの上昇が認められる。2. Description of the Related Art Polyacetal resins have well-balanced mechanical properties and are excellent in friction and wear characteristics, chemical resistance, heat resistance, electrical characteristics, etc. -Widely used in the field of sliding parts such as electronic parts. However, the required properties in such fields are becoming more sophisticated, and one of them is the demand for further improvement of sliding properties and their long-term sustainability. As a typical example of such a sliding component required to have higher sliding characteristics, there is a felt clutch mechanism component used in a tape running system such as a VTR, 8 mm video and typewriter. As a sliding characteristic required for the felt clutch mechanism component, not only the friction coefficient but of course, it is important to obtain a stable rotating torque with respect to the felt both in the short term and in the long term. Conventionally, polyacetal resin has been mainly used as a material for the felt clutch mechanism component. However, as a recent trend, downsizing of felt clutch mechanism parts, speeding up of tape running, etc. have progressed,
In particular, there is a tendency that friction and wear characteristics with a felt for long-term use, stability of rotational torque, stick-slip phenomenon (torque stick), and the like tend to deteriorate, and improvements thereof have been desired. For the purpose of improving these problems, fluoroacryl resin and polyolefin resin to polyacetal resin, addition and mixing of other resin such as silicone resin resin, further addition of graphite, solid lubricant such as molybdenum disulfide,
Fatty acids, silicone oils, various mineral oils, etc. have been added. However, the addition of fluororesin or polyolefin-based resin improves sliding properties to some extent, but these resins have poor compatibility with acetal resin, which causes peeling on the surface of the molded product, Easy to generate precipitates. Also, the addition of lubricating oils such as silicone oil and various mineral oils has the effect of reducing the wear coefficient and specific wear amount, but in the sliding characteristics against felt, rather the exudation of liquid matter causes the aggregation of polyacetal resin wear powder. May occur, which may rather cause an increase in the rotation torque. Further, there are many cases in which there is a problem in extrusion processability or molding processability.
Further, addition of a solid lubricant such as graphite or molybdenum disulfide is abrasion powder due to abrasion, and therefore an increase in rotation torque due to agglomeration and sticking to the felt is observed.
【０００３】[0003]
【課題を解決するための手段】本発明者らは斯かる問題
がなく、上記要求に応え得るポリアセタール樹脂組成物
を得るべく鋭意検討を重ねた結果、ポリアセタール樹脂
に特定形状の炭酸カルシウムと特定の脂肪酸エステルを
添加併用することにより、ＶＴＲ、８mmビデオ、タイプ
ライター等のフェルトクラッチ機構部材料として極めて
優れた性能が得られることを見出して、本発明に到達し
た。即ち本発明は、 (A) ポリアセタール樹脂 100 重量部に対し (B) 平均粒径が0.1 〜10μm の紡錘状炭酸カルシウム
１〜15重量部と (C) 炭素数５〜32の脂肪酸と炭素数２〜30の一価もしく
は多価アルコールとの脂肪酸エステル 0.05〜10重量部
を配合してなるポリアセタール樹脂組成物、並びにこれ
を用いてなるフェルトクラッチ機構部品の如き成形品に
関するものである。Means for Solving the Problems The present inventors have earnestly studied to obtain a polyacetal resin composition which does not have such a problem and can meet the above-mentioned requirements. As a result, the polyacetal resin has a specific shape of calcium carbonate and a specific shape. The present invention has been accomplished by finding that by adding and using a fatty acid ester in combination, extremely excellent performance can be obtained as a material for a felt clutch mechanism portion of a VTR, 8 mm video, typewriter and the like. That is, the present invention relates to (A) 100 parts by weight of polyacetal resin, (B) spindle-shaped calcium carbonate having an average particle size of 0.1 to 10 μm.
1 to 15 parts by weight and (C) 0.05 to 10 parts by weight of a fatty acid ester of a C5 to C32 fatty acid and a C2 to C30 monohydric or polyhydric alcohol, and a polyacetal resin composition The present invention relates to a molded product such as a felt clutch mechanism part using
【０００４】以下、本発明の構成について詳しく説明す
る。先ず、本発明に用いられる(A) ポリアセタール樹脂
としては、ポリアセタールホモポリマー及び主鎖の大部
分がオキシメチレン連鎖よりなるポリアセタールコポリ
マーのいずれも使用できる。また、ポリアセタールを公
知の方法で架橋或いはグラフト共重合して変性したもの
も基体樹脂として使用でき、本発明の効果は発揮され
る。重合度等は成形可能な限り特に制限はない。The structure of the present invention will be described in detail below. First, as the polyacetal resin (A) used in the present invention, both a polyacetal homopolymer and a polyacetal copolymer in which most of the main chain is an oxymethylene chain can be used. Further, a product obtained by modifying polyacetal by crosslinking or graft copolymerization by a known method can also be used as the base resin, and the effects of the present invention are exhibited. The degree of polymerization is not particularly limited as long as it can be molded.
【０００５】次に本発明においてポリアセタール樹脂
(A) に配合される炭酸カルシウム(B)としては平均粒径
0.1 〜10μm の紡錘状のものが用いられる。ここでいう
紡錘状とは、中央部が太く、両端に行くに従い次第に細
くなる形状を示すものであり、典型的には、両端がとが
った円柱状、楕円状又はその類似形である。又、平均粒
径とはその長径で測定した径の平均値である。当業者に
周知の如く、炭酸カルシウムには重質炭酸カルシウム、
軽質炭酸カルシウム、軽微性炭酸カルシウム、コロイド
状炭酸カルシウムなどがあるが、本発明に使用するもの
は軽質炭酸カルシウムに属し、そのうちの紡錘状の形状
をなし、その平均粒径が0.1 〜10μm 、好ましくは0.1
〜５μm のものである。かかる特定の炭酸カルシウム
(B) を後述する特定の脂肪酸エステル(C) と併用してポ
リアセタール樹脂(A) に配合することにより、初めて摺
動特性、特に対フェルトとの摺動において優れた安定性
を示す材料を得ることができるのである。このような特
定の炭酸カルシウム(B) としては白石工業（株）製のシ
ルバーＷ、ＰＣ、ＰＣＸ等が例示される。上記炭酸カル
シウムは、一般に知られている表面処理剤、即ちアミノ
シラン、エポキシシラン等のシランカップリング剤、チ
タネート系カップリング剤及び有機酸、有機酸エステ
ル、有機酸金属塩等の表面処理剤で予め表面処理された
ものでもよい。このような表面処理された炭酸カルシウ
ム(B) としては白石工業（株）製のＳＬ−１０１が例示
される。本発明において炭酸カルシウム(B) の添加量は
ポリアセタール樹脂(A)100重量部に対して１〜15重量
部、好ましくは３〜10重量部である。これより少ない量
では充分なトルク安定性は得られず、これより多い量で
は成形品の表面荒れによる相手材とのトルクステック等
を起こす。Next, in the present invention, a polyacetal resin is used.
Average particle size for calcium carbonate (B) blended with (A)
Spindle-shaped particles of 0.1 to 10 μm are used. The fusiform shape as used herein means a shape in which the central portion is thick and becomes gradually narrower toward both ends, and is typically a columnar shape with both ends sharpened, an elliptical shape or a similar shape. Further, the average particle diameter is an average value of the diameters measured by the long diameter. As known to those skilled in the art, calcium carbonate is ground calcium carbonate,
There are light calcium carbonate, light calcium carbonate, colloidal calcium carbonate, etc., but those used in the present invention belong to light calcium carbonate, of which the spindle-like shape, the average particle size of which is 0.1 ~ 10μm, preferably Is 0.1
˜5 μm. Such specific calcium carbonate
By combining (B) with the specific fatty acid ester (C) described below and blending it with the polyacetal resin (A), it is possible to obtain for the first time a material that exhibits excellent sliding characteristics, especially excellent stability in sliding against felt. You can do it. Examples of such specific calcium carbonate (B) include Silver W, PC and PCX manufactured by Shiraishi Industry Co., Ltd. The calcium carbonate is a generally known surface treatment agent, that is, a silane coupling agent such as aminosilane or epoxysilane, a titanate coupling agent and a surface treatment agent such as an organic acid, an organic acid ester or an organic acid metal salt. It may be surface-treated. An example of such surface-treated calcium carbonate (B) is SL-101 manufactured by Shiraishi Industry Co., Ltd. In the present invention, the amount of calcium carbonate (B) added is 1 to 15 parts by weight, preferably 3 to 10 parts by weight, based on 100 parts by weight of the polyacetal resin (A). If the amount is smaller than this, sufficient torque stability cannot be obtained, and if the amount is larger than this, a torque stick or the like with the mating material occurs due to surface roughness of the molded product.
【０００６】次に本発明で用いられる(C) 成分の脂肪酸
エステルとしては炭素数５〜32の脂肪酸と炭素数２〜30
の一価もしくは多価アルコールとのエステルである。か
かる脂肪酸エステルを構成する脂肪酸の例としては、カ
プロン酸、カプリル酸、ウンデシル酸、ラウリン酸、ト
リデシル酸、ミリスチン酸、パルミチン酸、ステアリン
酸、ベヘニン酸、リグノセリン酸、セロチン酸、モンタ
ン酸、メリシン酸など飽和脂肪酸、或いはオレイン酸、
エライジン酸、リノール酸、リノレン酸、アラキドン
酸、プラシジン酸、エルカ酸、リシノール酸などの不飽
和脂肪酸等が挙げられ、又、エステルを形成するアルコ
ールの例としては、プロピル、イソプロピル、ブチル、
オクチル、カプリル、ラウリル、ミリスチル、ステアリ
ル、ベヘニル等の一価もしくはエチレングリコール、プ
ロピレングリコール、ブタンジオール、グリセリン、ペ
ンタエリスリトール、ソルビタン等の多価アルコールが
挙げられる。好ましくは炭素数12〜22の脂肪酸と炭素数
２〜22の一価もしくは多価アルコールとのエステルであ
り、更に好ましくは次に示す脂肪酸とアルコールとから
なるエステルである。 脂肪酸：ラウリン酸、ミリスチン酸、パルミチン酸、ス
テアリン酸、ベヘニン酸 アルコール：ミリスチルアルコール、ステアリルアルコ
ール、ベヘニルアルコール、エチレングリコール、ポリ
エチレングリコール、プロピレングリコール、グリセリ
ン、ペンタエリスリトール、ソルビタン 中でも対フェルト摺動性能の面から、好ましくはその融
点が40℃以上の脂肪酸エステルであり、例示すると、ス
テアリルステアレート、ベヘニルベヘネート、エチレン
グリコールジステアレート、プロピレングリコールモノ
ステアレート、プロピレングリコールモノベヘネート、
グリセリンモノステアレート、グリセリンモノベヘネー
ト、ソルビタンモノステアレート、ソルビタンジステア
レート、ソルビタンモノベヘネート等が挙げられる。本
発明において、かかる脂肪酸エステル(C) の添加量はポ
リアセタール樹脂100 重量部に対し0.05〜10重量部であ
る。0.05重量部より少ない量では摺動性改良効果は期待
できず、又、逆に10重量部より多い量では基体樹脂であ
るポリアセタールの性質が大巾に損なわれる場合があ
る。好ましくは0.1 〜５重量部が配合される。Next, the fatty acid ester of the component (C) used in the present invention is a fatty acid having 5 to 32 carbon atoms and 2 to 30 carbon atoms.
Is an ester with a monohydric or polyhydric alcohol. Examples of fatty acids constituting such fatty acid ester include caproic acid, caprylic acid, undecylic acid, lauric acid, tridecylic acid, myristic acid, palmitic acid, stearic acid, behenic acid, lignoceric acid, cerotic acid, montanic acid, melicinic acid. Saturated fatty acid, or oleic acid,
Elaidic acid, linoleic acid, linolenic acid, arachidonic acid, pracidic acid, erucic acid, and unsaturated fatty acids such as ricinoleic acid, and the like, and examples of alcohols forming an ester include propyl, isopropyl, butyl,
Examples thereof include monohydric groups such as octyl, capryl, lauryl, myristyl, stearyl and behenyl, and polyhydric alcohols such as ethylene glycol, propylene glycol, butanediol, glycerin, pentaerythritol and sorbitan. Esters of fatty acids having 12 to 22 carbon atoms and monohydric or polyhydric alcohols having 2 to 22 carbon atoms are preferable, and esters of fatty acids and alcohols shown below are more preferable. Fatty acid: lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid Alcohol: myristyl alcohol, stearyl alcohol, behenyl alcohol, ethylene glycol, polyethylene glycol, propylene glycol, glycerin, pentaerythritol, sorbitan Even from the aspect of felt sliding performance , Preferably a fatty acid ester having a melting point of 40 ° C. or higher, and by way of example, stearyl stearate, behenyl behenate, ethylene glycol distearate, propylene glycol monostearate, propylene glycol monobehenate,
Examples thereof include glycerin monostearate, glycerin monobehenate, sorbitan monostearate, sorbitan distearate and sorbitan monobehenate. In the present invention, the amount of the fatty acid ester (C) added is 0.05 to 10 parts by weight based on 100 parts by weight of the polyacetal resin. If the amount is less than 0.05 parts by weight, the effect of improving the slidability cannot be expected, and conversely, if the amount is more than 10 parts by weight, the properties of the base resin, polyacetal, may be significantly impaired. Preferably 0.1 to 5 parts by weight is blended.
【０００７】本発明の特徴は前述した如く、ポリアセタ
ール樹脂(A) に特定の炭酸カルシウム(B) と脂肪酸エス
テル(C) を併用して添加配合する点にある。脂肪酸エス
テルの添加は、一般的な摺動性の改善、更には対フェル
トとの摺動性改良には他の例えばグラファイト、二硫化
モリブデン等の固体潤滑剤以上に好適であるが、単独で
は要求特性を満足することができず、又、その改善の
為、多量且つ均一に添加することは困難である。即ち、
添加剤の混練時に押出機のスクリュー上で樹脂の滑りの
原因となり、サージング現象を生じたり、ベント孔より
未溶融樹脂がベントアップする等の問題が生じ、均一な
組成物の調製自体が困難であるのみならず、又、成形時
においても、くい込み不良、可塑化不良等の問題を生ず
る。しかるに、本発明の如く特定の炭酸カルシウム(B)
と脂肪酸エステル(C) を組み合わせて添加することによ
り、上記の如き脂肪酸エステル単独配合による欠点が大
幅に改善される。As described above, the feature of the present invention resides in that the specific calcium carbonate (B) and the fatty acid ester (C) are used in combination and added to the polyacetal resin (A). Addition of fatty acid ester is more suitable than other solid lubricants such as graphite and molybdenum disulfide for improving general sliding property and sliding property with respect to felt, but it is required by itself. The characteristics cannot be satisfied, and it is difficult to add a large amount and uniformly because of the improvement. That is,
It causes slippage of the resin on the screw of the extruder during the kneading of the additive, a surging phenomenon occurs, and problems such as unmelted resin vent up from the vent hole occur, making it difficult to prepare a uniform composition itself. In addition to the above, problems such as poor biting and poor plasticization occur during molding. However, the specific calcium carbonate (B) as in the present invention
By adding the fatty acid ester (C) in combination with the fatty acid ester (C), the above-mentioned drawbacks of the fatty acid ester alone can be significantly improved.
【０００８】一般に無機物剛体の添加は、対フェルト摺
動において大幅なトルク変動、フェルトとポリアセター
ルの焼付き、スティックスリップ等の問題が発生するこ
とが多いが、本発明の如き特定の粒子径・形状よりなる
炭酸カルシウムは以外にもかかる欠点が少ないのみなら
ず、脂肪酸エステルと併用、共存した場合に上記の如き
顕著な相乗効果を呈するのである。Generally, addition of a rigid inorganic material often causes problems such as a large torque fluctuation in sliding against a felt, seizure of felt and polyacetal, stick-slip, etc., but a specific particle diameter and shape as in the present invention. In addition to the above-mentioned calcium carbonate, there are few such defects, and when it is used together with a fatty acid ester and coexists, it exhibits the above-mentioned synergistic effect.
【０００９】尚、ここで、一般的に用いられている粒子
形状が立方形、不定形等の炭酸カルシウムを特定の脂肪
酸エステルと併用して配合しても、好ましい性能は得ら
れず、本発明の如き特定の粒子径・形状の炭酸カルシウ
ムを用いることにより初めて、好ましい性能を得ること
ができるのである。[0009] Here, even if calcium carbonate having a generally used particle shape such as cubic or amorphous is used in combination with a specific fatty acid ester, preferable performance cannot be obtained. The preferable performance can be obtained only by using calcium carbonate having a specific particle size and shape as described above.
【００１０】本発明の組成物は、さらに公知の各種安定
剤を添加して安定性を補強することができる。また、目
的とする用途に応じてその物性を改善するため、更に公
知の各種の添加物を配合し得る。添加物の例を示せば、
各種の着色剤、滑剤、離型剤、核剤、帯電防止剤、その
他の界面活性剤、異種ポリマー、有機改良剤等である。The composition of the present invention may be added with various known stabilizers to enhance the stability. Further, in order to improve the physical properties depending on the intended use, various known additives may be further added. If you show examples of additives,
Various colorants, lubricants, release agents, nucleating agents, antistatic agents, other surfactants, different polymers, organic improvers and the like.
【００１１】又、本発明の目的とする組成物の性能を大
巾に低下しない範囲内であれば、無機、有機、金属等の
繊維状、板状のフィラー或いは他の粉粒状充填剤を１種
又は２種混合使用することもできる。If the composition of the present invention does not significantly deteriorate the performance of the composition, a fibrous or plate-like filler such as an inorganic, organic or metallic material, or other powdery or granular filler is used. It is also possible to use one kind or a mixture of two kinds.
【００１２】次に本発明の組成物又は成形品の調製は、
従来の樹脂組成物調製法として一般に用いられる公知の
方法により容易に調製される。例えば各成分を混合した
後、１軸又は２軸の押出機により練込み押出しして、ペ
レットを調製し、しかる後、成形する方法、一旦組成の
異なるペレット（マスターバッチ）を調製し、そのペレ
ットを所定量混合（稀釈）して成形に供し、成形後に目
的組成の成形品を得る方法等、何れも使用できる。Next, the preparation of the composition or molded article of the present invention is as follows.
It is easily prepared by a known method generally used as a conventional resin composition preparation method. For example, after mixing the components, kneading and extruding with a single-screw or twin-screw extruder to prepare pellets, and then forming, pellets having different compositions (masterbatch) are prepared, and then the pellets are prepared. Any of the methods may be used, such as a method of mixing (diluting) the above with a predetermined amount and subjecting to molding, and obtaining a molded product of the target composition after molding.
【００１３】又、斯かる組成物の調製において、基体で
あるポリアセタール樹脂の一部又は全部を粉砕し、これ
とその他の成分を混合した後、押出等を行うことは添加
物の分散性を良くする上で好ましい方法である。In the preparation of such a composition, it is possible to improve the dispersibility of the additive by crushing a part or all of the polyacetal resin which is the base, mixing this with other components, and then extruding. This is the preferred method for achieving this.
【００１４】又、予め脂肪酸エステルを無機粉末と混合
し、含浸させた後、これをポリアセタール樹脂と混練
し、押出等を行う方法も組成物の調製を容易にし、加工
性改善の点で好ましい方法である。A method in which a fatty acid ester is previously mixed with an inorganic powder and impregnated, and then the resulting mixture is kneaded with a polyacetal resin and then extruded or the like facilitates preparation of the composition and is preferable in view of processability improvement. Is.
【００１５】[0015]
【実施例】以下実施例により、本発明を更に具体的に説
明するが、本発明はこれに限定されるものではない。The present invention will be described in more detail with reference to the following examples, but the present invention is not limited thereto.
【００１６】実施例１〜９及び比較例１〜７ ポリアセタール樹脂（ポリプラスチックス（株）製、商
品名ジュラコン Ｍ２７０）に特定の炭酸カルシウムと
脂肪酸エステルを表１，２に示す割合で混合した後、２
軸押出機により、溶融混練し、ペレット状の組成物を調
製した。次いで、このペレットを用いて、射出成形によ
り試験片を作成し、評価を行った。又、比較のため、炭
酸カルシウム又は脂肪酸エステル無添加のもの、本発明
に規定する以外の炭酸カルシウム及び脂肪酸エステルを
併用したものについて、評価を行った。結果を併せて表
１，２に示す。Examples 1 to 9 and Comparative Examples 1 to 7 Polyacetal resin (manufactured by Polyplastics Co., Ltd., trade name DURACON M270) was mixed with specific calcium carbonate and fatty acid ester at the ratios shown in Tables 1 and 2. Two
The composition was pelletized by melt-kneading with a shaft extruder. Next, using the pellets, test pieces were prepared by injection molding and evaluated. In addition, for comparison, the evaluation was carried out for those containing no calcium carbonate or fatty acid ester and those containing calcium carbonate and fatty acid ester other than those specified in the present invention in combination. The results are also shown in Tables 1 and 2.
【００１７】尚、評価項目及び評価方法は下記の通りで
ある。 １）成形性：スクリュー式射出成形機を用い、シリンダ
ー温度190 ℃、スクリュー回転数120r.p.mとした時の可
塑化時間を測定した。この値が大きいことは、スクリュ
ー上でペレットが滑り、くい込みが悪く、成形性が劣る
ことを示す。 2)摩擦係数：鈴木式摩擦・摩耗試験機を用い、加圧10kg
/ cm2 、線速度30cm/sec、接触面積2.0cm2、相手材とし
て金属(S55C)を用い、動摩擦係数を測定した。 3)実用テスト：図１に示す試験機を用い、図２及び図３
に示したポリアセタール樹脂製摩擦磨耗試験片（φ30mm
×φ9.5mm ×1.5mm)とフェルト（φ22mm×φ16mm×１m
m; フジコー（株）製、特硬５番) とを接触荷重1.4kg
、回転速度31.5r.p.m で48時間摺動させ、回転トルク
の変動値（平均回転トルク値の最大トルクと最小トルク
の差）をロードセルを用いて測定した。又、１回転毎の
トルク変動巾（最大トルクと最小トルクの差）をトルク
スティックとして評価（初期、48時間後）した。The evaluation items and the evaluation method are as follows. 1) Moldability: Using a screw type injection molding machine, the plasticization time was measured when the cylinder temperature was 190 ° C. and the screw rotation speed was 120 rpm. When this value is large, the pellets slip on the screw, biting is poor, and moldability is poor. 2) Friction coefficient: Pressurized 10kg using Suzuki type friction and wear tester
/ cm 2 , linear velocity 30 cm / sec, contact area 2.0 cm 2 , metal (S55C) was used as the mating material, and the dynamic friction coefficient was measured. 3) Practical test: Figure 2 and Figure 3 using the tester shown in Figure 1.
Friction and wear test piece made of polyacetal resin (φ30mm
× φ9.5mm × 1.5mm) and felt (φ22mm × φ16mm × 1m
m; Fujiko Co., Ltd., special hardened 5) contact load 1.4kg
The sample was slid for 48 hours at a rotation speed of 31.5 rpm, and the fluctuation value of the rotation torque (difference between the maximum torque and the minimum torque of the average rotation torque value) was measured using a load cell. Also, the torque fluctuation width (difference between the maximum torque and the minimum torque) for each rotation was evaluated as a torque stick (initial, after 48 hours).
【００１８】[0018]
【表１】 [Table 1]
【００１９】[0019]
【表２】 [Table 2]
【００２０】[0020]
【発明の効果】以上の説明及び実施例により明らかなよ
うにポリアセタール樹脂に特定の炭酸カルシウムと脂肪
酸エステルを配合してなる本発明の樹脂組成物は炭酸カ
ルシウム、脂肪酸エステルそれぞれ単独で用いるものに
比べ、対フェルト摺動特性が飛躍的に向上し、摺動部材
用組成物として好ましいものである。本発明の組成物は
上記の如きフェルト用摺動部材としての効果を有するが
故に、過酷な摺動特性を要求される用途、例えばＶＴ
Ｒ、８mmビデオ等のフェルトクラッチ機構部材に好適で
ある。As is apparent from the above description and Examples, the resin composition of the present invention obtained by blending a specific calcium carbonate and a fatty acid ester in a polyacetal resin is compared to a resin composition in which calcium carbonate and a fatty acid ester are used alone. The sliding property with respect to felt is drastically improved, which is preferable as a composition for sliding members. Since the composition of the present invention has the effect as a sliding member for felt as described above, it is used in applications requiring severe sliding characteristics, such as VT.
Suitable for felt clutch mechanism members such as R and 8mm video.
【図１】実施例で実用テストに用いたトルク測定用試験
機を示す図である。FIG. 1 is a diagram showing a torque measuring tester used in a practical test in Examples.
【図２】実施例で実用テストに用いたポリアセタール樹
脂製摩擦磨耗試験片の形状を示す図である。FIG. 2 is a view showing a shape of a friction and wear test piece made of a polyacetal resin used for a practical test in Examples.
【図３】実施例で実用テストに用いたポリアセタール樹
脂製摩擦磨耗試験片の挽目形状を示す図である。FIG. 3 is a view showing a ground shape of a friction and wear test piece made of a polyacetal resin used in a practical test in Examples.
１…フェルト ２…ポリアセタール樹脂製摩擦磨耗試験片 1 ... Felt 2 ... Polyacetal resin friction and wear test piece
Claims (6)
し (B) 平均粒径が0.1 〜10μm の紡錘状炭酸カルシウム
１〜15重量部と (C) 炭素数５〜32の脂肪酸と炭素数２〜30の一価もしく
は多価アルコールとの脂肪酸エステル 0.05〜10重量部
を配合してなるポリアセタール樹脂組成物。1. A spindle-shaped calcium carbonate having (A) 100 parts by weight of polyacetal resin and (B) having an average particle diameter of 0.1 to 10 μm.
A polyacetal resin composition comprising 1 to 15 parts by weight and (C) 0.05 to 10 parts by weight of a fatty acid ester of a fatty acid having 5 to 32 carbon atoms and a monohydric or polyhydric alcohol having 2 to 30 carbon atoms.
の脂肪酸と炭素数２〜22の一価もしくは多価アルコール
とのエステルである請求項１記載のポリアセタール樹脂
組成物。2. The fatty acid ester of component (C) has 12 to 22 carbon atoms.
The polyacetal resin composition according to claim 1, which is an ester of the above fatty acid and a monohydric or polyhydric alcohol having 2 to 22 carbon atoms.
肪酸とアルコールとのエステルである請求項１又は２記
載のポリアセタール樹脂組成物。 脂肪酸：ラウリン酸、ミリスチン酸、パルミチン酸、ス
テアリン酸、ベヘニン酸 アルコール：ミリスチルアルコール、ステアリルアルコ
ール、ベヘニルアルコール、エチレングリコール、ポリ
エチレングリコール、プロピレングリコール、グリセリ
ン、ペンタエリスリトール、ソルビタン3. The polyacetal resin composition according to claim 1, wherein the fatty acid ester as the component (C) is an ester of a fatty acid and an alcohol shown below. Fatty acid: lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid Alcohol: myristyl alcohol, stearyl alcohol, behenyl alcohol, ethylene glycol, polyethylene glycol, propylene glycol, glycerin, pentaerythritol, sorbitan
のものである請求項１、２又は３記載のポリアセタール
樹脂組成物。4. The polyacetal resin composition according to claim 1, 2 or 3, wherein the fatty acid ester as the component (C) has a melting point of 40 ° C. or higher.
ール樹脂組成物で成形されたフェルトクラッチ用成形
品。5. A molded product for a felt clutch, which is molded from the polyacetal resin composition according to claim 1, 2, 3 or 4.
とフェルト部材よりなるＶＴＲ、８mmビデオ、オーディ
オカセット又はタイプライター用フェルトクラッチ機構
部品。6. A felt clutch mechanism part for a VTR, 8 mm video, audio cassette or typewriter comprising the felt clutch molded product according to claim 5 and a felt member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03211042A JP3140502B2 (en) | 1991-08-22 | 1991-08-22 | Polyacetal resin composition and molded article thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03211042A JP3140502B2 (en) | 1991-08-22 | 1991-08-22 | Polyacetal resin composition and molded article thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0551514A true JPH0551514A (en) | 1993-03-02 |
| JP3140502B2 JP3140502B2 (en) | 2001-03-05 |
Family
ID=16599416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03211042A Expired - Fee Related JP3140502B2 (en) | 1991-08-22 | 1991-08-22 | Polyacetal resin composition and molded article thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3140502B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6194515B1 (en) | 1997-10-10 | 2001-02-27 | E. I. Du Pont De Nemours And Company | Polyacetal composition with improved toughness |
| WO2005071011A1 (en) * | 2004-01-21 | 2005-08-04 | Asahi Kasei Chemicals Corporation | Polyacetal resin composition |
| JP2012116883A (en) * | 2010-11-29 | 2012-06-21 | Polyplastics Co | Polyacetal resin composition |
| CN102585432A (en) * | 2010-12-27 | 2012-07-18 | 宝理塑料株式会社 | Polyacetal resin composition |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4895496B2 (en) * | 2004-11-10 | 2012-03-14 | 旭化成ケミカルズ株式会社 | Polyacetal resin composition |
-
1991
- 1991-08-22 JP JP03211042A patent/JP3140502B2/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6194515B1 (en) | 1997-10-10 | 2001-02-27 | E. I. Du Pont De Nemours And Company | Polyacetal composition with improved toughness |
| WO2005071011A1 (en) * | 2004-01-21 | 2005-08-04 | Asahi Kasei Chemicals Corporation | Polyacetal resin composition |
| KR100755985B1 (en) * | 2004-01-21 | 2007-09-06 | 아사히 가세이 케미칼즈 가부시키가이샤 | Polyacetal resin composition |
| US7625969B2 (en) | 2004-01-21 | 2009-12-01 | Asahi Kasei Chemicals Corporation | Polyacetal resin composition |
| US7772310B2 (en) | 2004-01-21 | 2010-08-10 | Asahi Kasei Chemicals Corporation | Polyacetal resin composition |
| CN1910233B (en) | 2004-01-21 | 2010-12-01 | 旭化成化学株式会社 | Polyacetal resin composition |
| JP2012092355A (en) * | 2004-01-21 | 2012-05-17 | Asahi Kasei Chemicals Corp | Method of manufacturing polyacetal resin composition |
| JP5067961B2 (en) * | 2004-01-21 | 2012-11-07 | 旭化成ケミカルズ株式会社 | Polyacetal resin composition |
| JP2012116883A (en) * | 2010-11-29 | 2012-06-21 | Polyplastics Co | Polyacetal resin composition |
| CN102585432A (en) * | 2010-12-27 | 2012-07-18 | 宝理塑料株式会社 | Polyacetal resin composition |
| JP2012136656A (en) * | 2010-12-27 | 2012-07-19 | Polyplastics Co | Polyacetal resin composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3140502B2 (en) | 2001-03-05 |
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