JP2012153798A - エンジン冷却水系部品用ポリアミド樹脂組成物およびそれを用いたエンジン冷却水系部品 - Google Patents
エンジン冷却水系部品用ポリアミド樹脂組成物およびそれを用いたエンジン冷却水系部品 Download PDFInfo
- Publication number
- JP2012153798A JP2012153798A JP2011013979A JP2011013979A JP2012153798A JP 2012153798 A JP2012153798 A JP 2012153798A JP 2011013979 A JP2011013979 A JP 2011013979A JP 2011013979 A JP2011013979 A JP 2011013979A JP 2012153798 A JP2012153798 A JP 2012153798A
- Authority
- JP
- Japan
- Prior art keywords
- polyamide resin
- acid
- resin composition
- polyamide
- engine cooling
- 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
- 229920006122 polyamide resin Polymers 0.000 title claims abstract description 116
- 239000011342 resin composition Substances 0.000 title claims abstract description 49
- 239000000498 cooling water Substances 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 94
- 238000010521 absorption reaction Methods 0.000 claims abstract description 36
- 238000009835 boiling Methods 0.000 claims abstract description 16
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 13
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 12
- 238000007654 immersion Methods 0.000 claims abstract description 6
- PGGROMGHWHXWJL-UHFFFAOYSA-N 4-(azepane-1-carbonyl)benzamide Chemical group C1=CC(C(=O)N)=CC=C1C(=O)N1CCCCCC1 PGGROMGHWHXWJL-UHFFFAOYSA-N 0.000 claims abstract description 5
- FKVMWDZRDMCIAJ-UHFFFAOYSA-N undecanamide Chemical group CCCCCCCCCCC(N)=O FKVMWDZRDMCIAJ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000002844 melting Methods 0.000 claims description 33
- 230000008018 melting Effects 0.000 claims description 33
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 20
- 238000002425 crystallisation Methods 0.000 claims description 17
- 230000008025 crystallization Effects 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 17
- 230000009467 reduction Effects 0.000 claims description 11
- 150000003839 salts Chemical class 0.000 claims description 10
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 8
- 239000002826 coolant Substances 0.000 claims description 6
- 150000004985 diamines Chemical class 0.000 claims description 6
- 230000000630 rising effect Effects 0.000 claims description 6
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical compound NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 5
- 150000003951 lactams Chemical class 0.000 claims description 5
- 229920005989 resin Polymers 0.000 abstract description 15
- 239000011347 resin Substances 0.000 abstract description 15
- 230000007774 longterm Effects 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 3
- -1 undecane lactam Chemical class 0.000 description 74
- 239000004952 Polyamide Substances 0.000 description 56
- 229920002647 polyamide Polymers 0.000 description 56
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 31
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 22
- 230000015572 biosynthetic process Effects 0.000 description 20
- 238000003786 synthesis reaction Methods 0.000 description 20
- 238000000034 method Methods 0.000 description 19
- 239000002994 raw material Substances 0.000 description 16
- 239000000178 monomer Substances 0.000 description 14
- 239000003063 flame retardant Substances 0.000 description 13
- 239000003365 glass fiber Substances 0.000 description 13
- 229920002302 Nylon 6,6 Polymers 0.000 description 12
- 239000004677 Nylon Substances 0.000 description 11
- 229920001778 nylon Polymers 0.000 description 11
- 229920006111 poly(hexamethylene terephthalamide) Polymers 0.000 description 11
- 229920000642 polymer Polymers 0.000 description 11
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 10
- 238000000465 moulding Methods 0.000 description 10
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 9
- GVNWZKBFMFUVNX-UHFFFAOYSA-N Adipamide Chemical compound NC(=O)CCCCC(N)=O GVNWZKBFMFUVNX-UHFFFAOYSA-N 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 9
- 238000001746 injection moulding Methods 0.000 description 9
- 229910052751 metal Chemical class 0.000 description 9
- 239000002184 metal Chemical class 0.000 description 9
- 239000000835 fiber Substances 0.000 description 8
- 238000002156 mixing Methods 0.000 description 8
- 230000000704 physical effect Effects 0.000 description 8
- 229920005992 thermoplastic resin Polymers 0.000 description 8
- 229920006128 poly(nonamethylene terephthalamide) Polymers 0.000 description 7
- GUOSQNAUYHMCRU-UHFFFAOYSA-N 11-Aminoundecanoic acid Chemical compound NCCCCCCCCCCC(O)=O GUOSQNAUYHMCRU-UHFFFAOYSA-N 0.000 description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 229920001577 copolymer Polymers 0.000 description 6
- 239000007822 coupling agent Substances 0.000 description 6
- ILRSCQWREDREME-UHFFFAOYSA-N dodecanamide Chemical compound CCCCCCCCCCCC(N)=O ILRSCQWREDREME-UHFFFAOYSA-N 0.000 description 6
- 239000000945 filler Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 6
- 238000006116 polymerization reaction Methods 0.000 description 6
- 125000003277 amino group Chemical group 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 238000007334 copolymerization reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 4
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 4
- 229920000571 Nylon 11 Polymers 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical class OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 239000001361 adipic acid Substances 0.000 description 4
- 235000011037 adipic acid Nutrition 0.000 description 4
- 125000001931 aliphatic group Chemical group 0.000 description 4
- 239000003963 antioxidant agent Substances 0.000 description 4
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 4
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 4
- 238000006068 polycondensation reaction Methods 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000005749 Copper compound Substances 0.000 description 3
- 239000004609 Impact Modifier Substances 0.000 description 3
- 229920002292 Nylon 6 Polymers 0.000 description 3
- 229920000305 Nylon 6,10 Polymers 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 239000001110 calcium chloride Substances 0.000 description 3
- 229910001628 calcium chloride Inorganic materials 0.000 description 3
- 150000001880 copper compounds Chemical class 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 230000009477 glass transition Effects 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- SXJVFQLYZSNZBT-UHFFFAOYSA-N nonane-1,9-diamine Chemical compound NCCCCCCCCCN SXJVFQLYZSNZBT-UHFFFAOYSA-N 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical class O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 description 3
- 229920001955 polyphenylene ether Polymers 0.000 description 3
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- HQHCYKULIHKCEB-UHFFFAOYSA-N tetradecanedioic acid Natural products OC(=O)CCCCCCCCCCCCC(O)=O HQHCYKULIHKCEB-UHFFFAOYSA-N 0.000 description 3
- ULQISTXYYBZJSJ-UHFFFAOYSA-N 12-hydroxyoctadecanoic acid Chemical compound CCCCCCC(O)CCCCCCCCCCC(O)=O ULQISTXYYBZJSJ-UHFFFAOYSA-N 0.000 description 2
- GAGWMWLBYJPFDD-UHFFFAOYSA-N 2-methyloctane-1,8-diamine Chemical group NCC(C)CCCCCCN GAGWMWLBYJPFDD-UHFFFAOYSA-N 0.000 description 2
- JZUHIOJYCPIVLQ-UHFFFAOYSA-N 2-methylpentane-1,5-diamine Chemical compound NCC(C)CCCN JZUHIOJYCPIVLQ-UHFFFAOYSA-N 0.000 description 2
- AATYZZMKXORGOA-UHFFFAOYSA-N 4-methylheptan-3-amine Chemical compound CCCC(C)C(N)CC AATYZZMKXORGOA-UHFFFAOYSA-N 0.000 description 2
- QNVNLUSHGRBCLO-UHFFFAOYSA-N 5-hydroxybenzene-1,3-dicarboxylic acid Chemical compound OC(=O)C1=CC(O)=CC(C(O)=O)=C1 QNVNLUSHGRBCLO-UHFFFAOYSA-N 0.000 description 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- 239000005711 Benzoic acid Substances 0.000 description 2
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- PPZUZHRRNVEEGY-UHFFFAOYSA-N C(C1=CC(C(=O)N)=CC=C1)(=O)N.CC(CCC)C(CC)N Chemical compound C(C1=CC(C(=O)N)=CC=C1)(=O)N.CC(CCC)C(CC)N PPZUZHRRNVEEGY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 2
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 229920000106 Liquid crystal polymer Polymers 0.000 description 2
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- RSJKGSCJYJTIGS-UHFFFAOYSA-N N-undecane Natural products CCCCCCCCCCC RSJKGSCJYJTIGS-UHFFFAOYSA-N 0.000 description 2
- 229920000299 Nylon 12 Polymers 0.000 description 2
- 229920003189 Nylon 4,6 Polymers 0.000 description 2
- 229920000572 Nylon 6/12 Polymers 0.000 description 2
- 229920006152 PA1010 Polymers 0.000 description 2
- 229920006154 PA11T Polymers 0.000 description 2
- 229920006153 PA4T Polymers 0.000 description 2
- 229930040373 Paraformaldehyde Natural products 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 2
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- 239000004697 Polyetherimide Substances 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229920006121 Polyxylylene adipamide Polymers 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 125000004018 acid anhydride group Chemical group 0.000 description 2
- 150000008065 acid anhydrides Chemical class 0.000 description 2
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910001508 alkali metal halide Inorganic materials 0.000 description 2
- OJMOMXZKOWKUTA-UHFFFAOYSA-N aluminum;borate Chemical compound [Al+3].[O-]B([O-])[O-] OJMOMXZKOWKUTA-UHFFFAOYSA-N 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 229910052787 antimony Inorganic materials 0.000 description 2
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 2
- LJCFOYOSGPHIOO-UHFFFAOYSA-N antimony pentoxide Chemical compound O=[Sb](=O)O[Sb](=O)=O LJCFOYOSGPHIOO-UHFFFAOYSA-N 0.000 description 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- 125000003118 aryl group Chemical group 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
- 235000010233 benzoic acid Nutrition 0.000 description 2
- 239000002981 blocking agent Substances 0.000 description 2
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 2
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011231 conductive filler Substances 0.000 description 2
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 2
- QTMDXZNDVAMKGV-UHFFFAOYSA-L copper(ii) bromide Chemical compound [Cu+2].[Br-].[Br-] QTMDXZNDVAMKGV-UHFFFAOYSA-L 0.000 description 2
- PAFZNILMFXTMIY-UHFFFAOYSA-N cyclohexylamine Chemical compound NC1CCCCC1 PAFZNILMFXTMIY-UHFFFAOYSA-N 0.000 description 2
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 2
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 description 2
- JQVDAXLFBXTEQA-UHFFFAOYSA-N dibutylamine Chemical compound CCCCNCCCC JQVDAXLFBXTEQA-UHFFFAOYSA-N 0.000 description 2
- 150000001991 dicarboxylic acids Chemical class 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 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
- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 2
- 229910001701 hydrotalcite Inorganic materials 0.000 description 2
- 229960001545 hydrotalcite Drugs 0.000 description 2
- KQNPFQTWMSNSAP-UHFFFAOYSA-N isobutyric acid Chemical compound CC(C)C(O)=O KQNPFQTWMSNSAP-UHFFFAOYSA-N 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- HSZCZNFXUDYRKD-UHFFFAOYSA-M lithium iodide Chemical compound [Li+].[I-] HSZCZNFXUDYRKD-UHFFFAOYSA-M 0.000 description 2
- 150000004668 long chain fatty acids Chemical class 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 2
- 239000000347 magnesium hydroxide Substances 0.000 description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 229910052901 montmorillonite Inorganic materials 0.000 description 2
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Landscapes
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Abstract
【解決手段】ヘキサメチレンテレフタルアミド単位55〜75モル%とウンデカンアミド単位45〜25モル%とからなる共重合ポリアミド樹脂100質量部に対して、繊維状強化剤を20〜150質量部含有する組成物であり、かつ該組成物が80℃熱水中の飽和吸水率が3.0%以下、沸騰水2000時間浸漬後の引張強度低下率(%)が30%以下、を満足するポリアミド樹脂組成物。
【選択図】なし
Description
例えば、ナイロン66に強化材として特定の表面処理剤で処理した特定の細い繊度のガラス繊維を用いる方法(特許文献1)、ナイロン6T系などの融点300℃以上の高融点ポリアミドを配合する方法(例えば特許文献2、3)などが提案され、また、ナイロン6T系などの高融点ポリアミドを用いる試みなどもある。しかしながら、これらの方法では、それぞれ、成形性、流動性、低吸水性、耐久性などをすべて満足できるものではなく、改善の余地がある。
(1) (a)ヘキサメチレンテレフタルアミド単位55〜75モル%と(b)ウンデカンアミド単位45〜25モル%とからなる共重合ポリアミド樹脂(A)100質量部に対して、繊維状強化剤(B)を20〜150質量部含有する組成物であり、かつ該組成物が下記(イ)、(ロ)を満足することを特徴とするエンジン冷却水系部品用ポリアミド樹脂組成物。
(イ)80℃熱水中の飽和吸水率(%)が3.0%以下
(ロ)沸騰水2000時間浸漬後の引張強度低下率(%)が30%以下
(2) 共重合ポリアミド樹脂(A)が、(c)前記(a)の構成単位以外のジアミンとジカルボン酸の等量モル塩から得られる構成単位、または前記(b)の構成単位以外のアミノカルボン酸もしくはラクタムから得られる構成単位を最大20モル%まで含有する前記(1)に記載のエンジン冷却水系部品用ポリアミド樹脂組成物。
(3) 共重合ポリアミド樹脂(A)の末端カルボキシル基濃度が80〜120当量/トンである前記(1)又は(2)に記載のエンジン冷却水系部品用ポリアミド樹脂組成物。
(4) ポリアミド樹脂組成物の融点が300〜330℃であり、昇温結晶化温度(Tc1)が90〜120℃である前記(1)〜(3)のいずれかに記載のエンジン冷却水系部品用ポリアミド樹脂組成物。
(5) 前記(1)〜(4)のいずれかに記載のポリアミド樹脂組成物を用いて得られたエンジン冷却水系部品。
(6) エンジン冷却水系部品が、ラジエタータンク部品、冷却液リザーブタンク、ウォーターパイプ、ウォーターインレットパイプ、ウォーターアウトレットパイプ、ウォーターポンプハウジング、ウォーターポンプインペラ、ウォーターバルブのいずれかである前記(5)に記載のエンジン冷却水系部品。
(イ)80℃熱水中の飽和吸水率(%)が3.0%以下
(ロ)沸騰水2000時間浸漬後の引張強度低下率(%)が30%以下
一方、マレイン酸変性ポリオレフィンなどの反応性化合物をコンパウンドする際は、さらに反応性および反応基に合わせ、末端カルボキシル基濃度および/又は末端アミノ基濃度を適宜調整することが好ましい。
末端カルボキシル基濃度が85〜110当量/トンで、かつ80℃熱水中の飽和吸水率(%)が2.5%以下の組成物であると、(ロ)沸騰水2000時間浸漬後の引張強度低下率(T)%が25%以下、の長期耐沸騰水性をも発現することができる。
本発明における共重合ポリアミド樹脂(A)は、ポリアミド9Tに比べると、飽和吸水率が高いにもかかわらず、本発明の強化ポリアミド樹脂組成物においては、より長期間にわたって高い強度を維持することができる。
ポリアミド樹脂0.25gを96%硫酸25mlに溶解し、オストワルド粘度計を用いて20℃で測定した。
ポリアミド樹脂20mgを、HFIP+CDCl3(1+1)に溶解し、重蟻酸を8mg添加後、H−NMR測定を実施した。樹脂1トン中の当量(当量/トン)で表した。
東芝機械製射出成形機EC−100を用い、シリンダー温度は樹脂の融点+20℃、金型温度は35℃に設定し、長さ127mm、幅12.6mm、厚み0.8mmtのUL燃焼試験用テストピースを射出成形し、試験片を作製した。得られた試験片の融点(Tm)及び昇温結晶化温度(Tc1)を測定するために、試験片の一部をアルミニウム製パンに5mg計量し、アルミニウム製蓋で密封状態にして、測定試料を調製した後、示差走査熱量計(SEIKO INSTRUMENTS製 SSC/5200)を用いて、窒素雰囲気で室温から20℃/分で昇温し、350℃まで測定を実施した。その際、得られる発熱ピークの内、最も高温のピークのピークトップ温度を昇温結晶化温度(Tc1)とした。さらに昇温し、融解による吸熱のピークトップ温度を融点(Tm)とした。
東芝機械製射出成形機EC−100を用い、シリンダー温度は樹脂の融点+20℃、金型温度は120℃に設定し、フィルムゲートを有する縦100mm、横100mm、厚み1mmtの平板作成用金型を使用し、射出成形を実施した。射出速度50mm/秒、保圧30MPa、射出時間10秒、冷却時間10秒で成型を行い、成形性の良悪は以下のような評価を行った。
○:問題なく成型品が得られる。
△:時々スプルーが金型に残る。
×:離型性が不十分であり、成型品が金型に貼り付いたり変形する。
さらに、得られた成型品の寸法安定性の評価を行うために、上記成型品を180℃で1時間加熱した。加熱前後における、流動方向に垂直な方向の寸法を測定し、寸法変化量は以下のように求めた。
寸法変化量(%)=(加熱前の寸法(mm)−加熱後の寸法(mm))/加熱前の寸法(mm)×100
寸法安定性の良悪は以下のような評価を行った。
〇:寸法変化量が0.2%未満
×:寸法変化量が0.2%以上
東芝機械製射出成形機EC−100を用い、シリンダー温度は樹脂の融点+20℃、金型温度は140℃に設定し、縦100mm、横100mm、厚み1mmの平板を射出成形し、評価用試験片を作製した。この試験片を80℃熱水中に50時間浸漬させ、飽和吸水時及び乾燥時の質量から以下の式より飽和吸水率(%)を求めた。
飽和吸水率(%)={(飽和吸水時の質量−乾燥時の質量)/乾燥時の質量}×100
ISO527−2規格に準じて測定した。
(7)沸騰水2000時間強度低下率
沸騰水中に2000時間浸漬後のISO引張試験片(A型ダンベル)について引張強度を測定し、以下の強度低下率(%)を求めた。
強度低下率(%)={(初期引張強度−2000時間浸漬後の引張強度)/初期引張強度}×100
ISO引張試験片(A型ダンベル)を「80℃、95%RH環境下に4時間放置」、「成形片表面に5%塩化カルシウム溶液を塗布」、「100℃のオーブンで2時間処理」、「室温で18時間放置する」の処理を1サイクルとし、10サイクル後の引張強度を測定して強度保持率(%)を求めた。
強度低下率(%)={(初期引張強度−10サイクル後の引張強度)/初期引張強度}×100
1,6−ヘキサメチレンジアミン6.96kg、テレフタル酸9.96kg、11−アミノウンデカン酸8.04kg、触媒としてジ亜リン酸ナトリウム9g、末端調整剤として酢酸40gおよびイオン交換水17.52kgを50リットルのオートクレーブに仕込み、常圧から0.05MPaまでN2で加圧し、放圧させ、常圧に戻した。この操作を3回行い、N2置換を行った後、攪拌下135℃、0.3MPaにて均一溶解させた。その後、溶解液を送液ポンプにより、連続的に供給し、加熱配管で240℃まで昇温させ、1時間、熱を加えた。その後、加圧反応缶に反応混合物が供給され、290℃に加熱され、缶内圧を3MPaで維持するように、水の一部を留出させ、低次縮合物を得た。その後、この低次縮合物を、溶融状態を維持したまま直接二軸押出し機(スクリュー径37mm、L/D=60)に供給し、樹脂温度を320℃、3箇所のベントから水を抜きながら溶融下で重縮合を進め、共重合ポリアミド樹脂(A1)を得た。得られた共重合ポリアミド樹脂(A1)は、融点302℃、相対粘度2.1、末端カルボキシル基量94当量/トンであった。合成例1の共重合ポリアミド樹脂(A1)の原料モノマーの仕込み比率を表1に示す。
1,6−ヘキサメチレンジアミンの量を7.54kgに変更し、テレフタル酸の量を10.79kgに変更し、11−アミノウンデカン酸の量を7.04kgに変更し、二軸押出し機の樹脂温度を335℃に変更した。これら以外は合成例1と同様にして、共重合ポリアミド樹脂(A2)を合成した。得られた共重合ポリアミド樹脂(A2)は、融点314℃、相対粘度2.1、末端カルボキシル基量89当量/トンであった。合成例2の共重合ポリアミド樹脂(A2)の原料モノマーの仕込み比率を表1に示す。
1,6−ヘキサメチレンジアミンの量を8.12kgに変更し、テレフタル酸の量を11.62に変更し、11−アミノウンデカン酸の量を6.03kgに変更し、二軸押出し機の樹脂温度を345℃に変更した。これら以外は合成例1と同様にして、共重合ポリアミド樹脂(A3)を合成した。得られた共重合ポリアミド樹脂(A3)は、融点328℃、相対粘度2.1、末端カルボキシル基量103当量/トンであった。合成例3の共重合ポリアミド樹脂(A3)の原料モノマーの仕込み比率を表1に示す。
1,6−ヘキサメチレンジアミンの量を8.12kgに変更し、テレフタル酸の量を9.96kgに変更し、11−アミノウンデカン酸の量を6.03kgに変更し、アジピン酸(テレフタル酸以外のジカルボン酸)1.46kgを仕込み、二軸押出し機の樹脂温度を330℃に変更した。これら以外は合成例1と同様にして、共重合ポリアミド樹脂(A4)を合成した。得られた共重合ポリアミド樹脂(A4)は、融点310℃、相対粘度2.1、末端カルボキシル基量88当量/トンであった。合成例4の共重合ポリアミド樹脂(A4)の原料モノマーの仕込み比率を表1に示す。
11−アミノウンデカン酸7.04kgをウンデカンラクタム6.41kgに変更し、二軸押出し機の樹脂温度を335℃に変更した。これら以外は合成例1と同様にして、共重合ポリアミド樹脂(A5)を合成した。得られた共重合ポリアミド樹脂(A5)は、融点315℃、相対粘度2.1、末端カルボキシル基量95当量/トンであった。合成例5の共重合ポリアミド樹脂(A5)の原料モノマーの仕込み比率を表1に示す。
<合成例6>
合成例1に記載された方法に従い、末端カルボキシル基量15当量/トン、融点302℃、相対粘度2.0の共重合ポリアミド樹脂(A6)を得た。その原料モノマーの仕込み比率を表1に示す。
WO06/112300号公報の実施例1に記載された方法に従い、テレフタル酸単位とアジピン酸単位、および1,6−ヘキサメチレンジアミン単位(テレフタル酸単位:アジピン酸単位のモル比が63:37)からなる共重合ポリアミド(A7)の合成を行った。得られた共重合ポリアミド(A7)は、相対粘度2.1、末端カルボキシル基量は44当量/トンであった。比較合成例1の共重合ポリアミド樹脂の原料モノマーの仕込み比率を表1に示す。
特開平7−228689号公報の実施例1に記載された方法に従い、テレフタル酸単位と、1,9−ノナンジアミン単位および2−メチル−1,8−オクタンジアミン単位(1,9−ノナンジアミン単位:2−メチル−1,8−オクタンジアミン単位のモル比が85:15)からなる、融点306℃、相対粘度2.1、末端カルボキシル基量15当量/トン(ただし末端封止剤は安息香酸を使用)である共重合ポリアミド樹脂(A8)の合成を行った。比較合成例2の共重合ポリアミド樹脂(A8)の原料モノマーの仕込み比率を表1に示す。
ポリアミド66(PA66):
東洋紡ナイロンT−662 相対粘度2.8 末端カルボキシル基量40当量/トン
表2に記載の成分と重量割合で、コペリオン(株)製二軸押出機STS−35を用いて各共重合ポリアミドの融点+30℃で溶融混練し、実施例1〜6、比較例1〜3のポリアミド樹脂組成物を得た。
繊維状強化剤(B)としては、ガラス繊維(日東紡績(株)製、CS−3J−324)を用いた。なお、ポリアミド樹脂100質量部当り、離型剤としてステアリン酸マグネシウムを0.5質量部、安定剤としてペンタエリスリチル・テトラキス[3−(3、5-ジ−t−ブチル−4−ヒドロキシフェニル)プロピオネート](チバ・スペシャリティーケミカルズ製、イルガノックス1010)を0.3質量部配合した。
Claims (6)
- (a)ヘキサメチレンテレフタルアミド単位55〜75モル%と(b)ウンデカンアミド単位45〜25モル%とからなる共重合ポリアミド樹脂(A)100質量部に対して、繊維状強化剤(B)を20〜150質量部含有する組成物であり、かつ該組成物が下記(イ)、(ロ)を満足することを特徴とするエンジン冷却水系部品用ポリアミド樹脂組成物。
(イ)80℃熱水中の飽和吸水率(%)が3.0%以下
(ロ)沸騰水2000時間浸漬後の引張強度低下率(%)が30%以下 - 共重合ポリアミド樹脂(A)が、(c)前記(a)の構成単位以外のジアミンとジカルボン酸の等量モル塩から得られる構成単位、または前記(b)の構成単位以外のアミノカルボン酸もしくはラクタムから得られる構成単位を最大20モル%まで含有する請求項1に記載のエンジン冷却水系部品用ポリアミド樹脂組成物。
- 共重合ポリアミド樹脂(A)の末端カルボキシル基濃度が80〜120当量/トンである請求項1又は2に記載のエンジン冷却水系部品用ポリアミド樹脂組成物。
- ポリアミド樹脂組成物の融点が300〜330℃であり、昇温結晶化温度(Tc1)が90〜120℃である請求項1〜3のいずれかに記載のエンジン冷却水系部品用ポリアミド樹脂組成物。
- 請求項1〜4のいずれかに記載のポリアミド樹脂組成物を用いて得られたエンジン冷却水系部品。
- エンジン冷却水系部品が、ラジエタータンク部品、冷却液リザーブタンク、ウォーターパイプ、ウォーターインレットパイプ、ウォーターアウトレットパイプ、ウォーターポンプハウジング、ウォーターポンプインペラ、ウォーターバルブのいずれかである請求項5に記載のエンジン冷却水系部品。
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