JP5013764B2 - Flame retardant polyamide resin composition and production method - Google Patents
Flame retardant polyamide resin composition and production method Download PDFInfo
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- JP5013764B2 JP5013764B2 JP2006179003A JP2006179003A JP5013764B2 JP 5013764 B2 JP5013764 B2 JP 5013764B2 JP 2006179003 A JP2006179003 A JP 2006179003A JP 2006179003 A JP2006179003 A JP 2006179003A JP 5013764 B2 JP5013764 B2 JP 5013764B2
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- polyamide
- polyamide resin
- resin composition
- mass
- flame
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- 229920006122 polyamide resin Polymers 0.000 title claims description 73
- 239000011342 resin composition Substances 0.000 title claims description 44
- 239000003063 flame retardant Substances 0.000 title claims description 37
- 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 title claims description 36
- 238000004519 manufacturing process Methods 0.000 title claims description 21
- 239000004952 Polyamide Substances 0.000 claims description 39
- 229920002647 polyamide Polymers 0.000 claims description 39
- ZQKXQUJXLSSJCH-UHFFFAOYSA-N melamine cyanurate Chemical compound NC1=NC(N)=NC(N)=N1.O=C1NC(=O)NC(=O)N1 ZQKXQUJXLSSJCH-UHFFFAOYSA-N 0.000 claims description 34
- 238000002844 melting Methods 0.000 claims description 31
- 230000008018 melting Effects 0.000 claims description 31
- 238000004898 kneading Methods 0.000 claims description 25
- 239000004094 surface-active agent Substances 0.000 claims description 24
- 229920002302 Nylon 6,6 Polymers 0.000 claims description 19
- 239000000805 composite resin Substances 0.000 claims description 17
- -1 fatty acid ester Chemical class 0.000 claims description 15
- 229920002292 Nylon 6 Polymers 0.000 claims description 13
- 229920000305 Nylon 6,10 Polymers 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 7
- 229920000572 Nylon 6/12 Polymers 0.000 claims description 6
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 5
- 239000000194 fatty acid Substances 0.000 claims description 5
- 229930195729 fatty acid Natural products 0.000 claims description 5
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 229920001515 polyalkylene glycol Polymers 0.000 claims description 3
- 229920001281 polyalkylene Polymers 0.000 claims description 2
- 150000005846 sugar alcohols Polymers 0.000 claims description 2
- 238000000034 method Methods 0.000 description 13
- 239000000126 substance Substances 0.000 description 12
- 239000000203 mixture Substances 0.000 description 10
- 229920006065 Leona® Polymers 0.000 description 9
- 239000002202 Polyethylene glycol Substances 0.000 description 7
- 238000001125 extrusion Methods 0.000 description 7
- 239000008188 pellet Substances 0.000 description 7
- 229920001223 polyethylene glycol Polymers 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000012778 molding material Substances 0.000 description 4
- 229920006111 poly(hexamethylene terephthalamide) Polymers 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 229920000877 Melamine resin Polymers 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- GVNWZKBFMFUVNX-UHFFFAOYSA-N Adipamide Chemical compound NC(=O)CCCCC(N)=O GVNWZKBFMFUVNX-UHFFFAOYSA-N 0.000 description 2
- 229920000571 Nylon 11 Polymers 0.000 description 2
- 229920000299 Nylon 12 Polymers 0.000 description 2
- 229920003189 Nylon 4,6 Polymers 0.000 description 2
- 229920001213 Polysorbate 20 Polymers 0.000 description 2
- 229920006121 Polyxylylene adipamide Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 239000006185 dispersion Substances 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
- 150000004665 fatty acids Chemical class 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- UTOPWMOLSKOLTQ-UHFFFAOYSA-N octacosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O UTOPWMOLSKOLTQ-UHFFFAOYSA-N 0.000 description 2
- 229920006128 poly(nonamethylene terephthalamide) Polymers 0.000 description 2
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 description 2
- 235000010486 polyoxyethylene sorbitan monolaurate Nutrition 0.000 description 2
- 239000000244 polyoxyethylene sorbitan monooleate Substances 0.000 description 2
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 2
- 239000001818 polyoxyethylene sorbitan monostearate Substances 0.000 description 2
- 235000010989 polyoxyethylene sorbitan monostearate Nutrition 0.000 description 2
- 229920000053 polysorbate 80 Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-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
- MUHFRORXWCGZGE-KTKRTIGZSA-N 2-hydroxyethyl (z)-octadec-9-enoate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCCO MUHFRORXWCGZGE-KTKRTIGZSA-N 0.000 description 1
- RFVNOJDQRGSOEL-UHFFFAOYSA-N 2-hydroxyethyl octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCCO RFVNOJDQRGSOEL-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
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 description 1
- ZUHMEUFBTDOKPX-UHFFFAOYSA-N 6-[2-(4,6-diamino-1,3,5-triazin-2-yl)ethyl]-1,3,5-triazine-2,4-diamine Chemical compound NC1=NC(N)=NC(CCC=2N=C(N)N=C(N)N=2)=N1 ZUHMEUFBTDOKPX-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 239000004114 Ammonium polyphosphate Substances 0.000 description 1
- 235000021357 Behenic acid Nutrition 0.000 description 1
- DPUOLQHDNGRHBS-UHFFFAOYSA-N Brassidinsaeure Natural products CCCCCCCCC=CCCCCCCCCCCCC(O)=O DPUOLQHDNGRHBS-UHFFFAOYSA-N 0.000 description 1
- 239000005632 Capric acid (CAS 334-48-5) Substances 0.000 description 1
- 229920000049 Carbon (fiber) 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
- DCXXMTOCNZCJGO-UHFFFAOYSA-N Glycerol trioctadecanoate Natural products CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 description 1
- 239000005639 Lauric acid Substances 0.000 description 1
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- 229920001214 Polysorbate 60 Polymers 0.000 description 1
- 239000004147 Sorbitan trioleate Substances 0.000 description 1
- PRXRUNOAOLTIEF-ADSICKODSA-N Sorbitan trioleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](OC(=O)CCCCCCC\C=C/CCCCCCCC)[C@H]1OC[C@H](O)[C@H]1OC(=O)CCCCCCC\C=C/CCCCCCCC PRXRUNOAOLTIEF-ADSICKODSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 235000019826 ammonium polyphosphate Nutrition 0.000 description 1
- 229920001276 ammonium polyphosphate Polymers 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 229910052586 apatite Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229940116226 behenic acid Drugs 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000000113 differential scanning calorimetry Methods 0.000 description 1
- ILRSCQWREDREME-UHFFFAOYSA-N dodecanamide Chemical compound CCCCCCCCCCCC(N)=O ILRSCQWREDREME-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- DPUOLQHDNGRHBS-KTKRTIGZSA-N erucic acid Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(O)=O DPUOLQHDNGRHBS-KTKRTIGZSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229940100608 glycol distearate Drugs 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 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
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 1
- OBNAOHSAPQWLGU-UHFFFAOYSA-N phthalic acid;1,3,5-triazine-2,4,6-triamine Chemical compound NC1=NC(N)=NC(N)=N1.OC(=O)C1=CC=CC=C1C(O)=O OBNAOHSAPQWLGU-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920006123 polyhexamethylene isophthalamide Polymers 0.000 description 1
- 239000001816 polyoxyethylene sorbitan tristearate Substances 0.000 description 1
- 235000010988 polyoxyethylene sorbitan tristearate Nutrition 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910001379 sodium hypophosphite Inorganic materials 0.000 description 1
- 235000019337 sorbitan trioleate Nutrition 0.000 description 1
- 229960000391 sorbitan trioleate Drugs 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- LTURHSAEWJPFAA-UHFFFAOYSA-N sulfuric acid;1,3,5-triazine-2,4,6-triamine Chemical compound OS(O)(=O)=O.NC1=NC(N)=NC(N)=N1 LTURHSAEWJPFAA-UHFFFAOYSA-N 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- MHSKRLJMQQNJNC-UHFFFAOYSA-N terephthalamide Chemical compound NC(=O)C1=CC=C(C(N)=O)C=C1 MHSKRLJMQQNJNC-UHFFFAOYSA-N 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- 235000010215 titanium dioxide Nutrition 0.000 description 1
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- BNEMLSQAJOPTGK-UHFFFAOYSA-N zinc;dioxido(oxo)tin Chemical compound [Zn+2].[O-][Sn]([O-])=O BNEMLSQAJOPTGK-UHFFFAOYSA-N 0.000 description 1
- BHTBHKFULNTCHQ-UHFFFAOYSA-H zinc;tin(4+);hexahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Zn+2].[Sn+4] BHTBHKFULNTCHQ-UHFFFAOYSA-H 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
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- Compositions Of Macromolecular Compounds (AREA)
Description
本発明は、IEC60695−2−13規格によるグローワイヤー着火温度で表される難燃性、靭性、成型性及び外観に優れる難燃性ポリアミド樹脂組成物およびその製造方法に関する。 The present invention relates to a flame retardant polyamide resin composition excellent in flame retardancy, toughness, moldability and appearance expressed by glow wire ignition temperature according to IEC60695-2-13 standard, and a method for producing the same.
ポリアミド樹脂は、機械的特性、電気特性、耐薬品性、成型加工性などに優れることを利用して自動車部品、電気・電子部品などの各種分野で使用されている。中でも、ハロゲンを含まない難燃剤であるメラミンシアヌレートを配合してなる難燃性ポリアミド樹脂は、コネクター等の電気・電子部品等のように難燃性を要求される分野で広く利用されている。コネクター用途では難燃性の他に靭性や流動性が高いことが要求されている。さらに近年では、コネクター用途において、より高い難燃性としてIEC60695−2−13規格によるグローワイヤー着火温度が、厚さ3mmの平板で775度以上であることが求められている。しかしながら、これまでのコネクター用途に用いられている難燃性ポリアミド樹脂では、これらの要求を満たしていないのが現状であった。 Polyamide resins are used in various fields such as automobile parts and electrical / electronic parts by utilizing their excellent mechanical characteristics, electrical characteristics, chemical resistance, moldability, and the like. Among these, flame retardant polyamide resins containing melamine cyanurate, which is a flame retardant containing no halogen, are widely used in fields requiring flame retardancy such as electrical and electronic parts such as connectors. . In connector applications, high toughness and fluidity are required in addition to flame retardancy. Furthermore, in recent years, in a connector application, a glow wire ignition temperature according to the IEC 60695-2-13 standard is required to be 775 ° C. or more for a flat plate having a thickness of 3 mm as higher flame retardancy. However, the present situation is that the flame-retardant polyamide resin used for conventional connector applications does not satisfy these requirements.
従来から知られている難燃性ポリアミド樹脂組成物として、成型後の成型品の外観を向上させるため、メラミンシアヌレートを含むポリアミド樹脂組成物粒状体とポリアミド樹脂粒状体を混合したものを成形することで、シルバーの発生を抑制し外観を向上させる技術が開示されている(例えば、特許文献1参照)。しかしながら該技術ではメラミンシアヌレートを高濃度に配合しようとする際に分散不良を起こし、靭性の低下が見られた。また、ポリアミドとトリアジン系難燃剤とカルボン酸アマイド系ワックスを溶融混練することで、グローワイヤー着火温度を向上させる技術が開示されている(例えば、特許文献2参照)。しかしながら、該技術でもメラミンシアヌレートが分散不良を起こし、靭性の低下が見られた。また、ポリアミド樹脂とメラミンシアヌレートを溶融混練してなるマスターバッチとポリアミド樹脂を混合することで靭性を向上させる技術も開示されている(例えば、特許文献3参照)。しかしながら該技術ではシルバーの発生が抑えられず外観が低下することがわかった。
本発明は、グローワイヤー着火温度で示される難燃性、靭性、成型性及び外観に優れたポリアミド樹脂組成物およびその製造方法を提供することを目的とする。 An object of this invention is to provide the polyamide resin composition excellent in the flame retardance, toughness, moldability, and external appearance shown by glow wire ignition temperature, and its manufacturing method.
本発明者は、上記本発明課題を解決すべく鋭意検討を重ねた結果、ポリアミド樹脂とポリアミド樹脂とメラミンシアヌレートと特定の界面活性剤を特定の配合比で配合したポリアミド樹脂複合物を溶融混練して得られる樹脂組成物によって、上記課題を解決できることを見出し、本発明を完成させるに至った。 As a result of intensive studies to solve the above-mentioned problems of the present invention, the present inventors have melt-kneaded a polyamide resin composite containing a polyamide resin, a polyamide resin, melamine cyanurate, and a specific surfactant in a specific mixing ratio. The present inventors have found that the above-mentioned problems can be solved by the resin composition obtained in this way, and have completed the present invention.
すなわち、本発明は、
(1)メラミンシアヌレート(B)の含有量が11質量%以上20質量%以下である難燃性ポリアミド樹脂組成物の製造方法であって、融点が255度以上350度以下のポリアミド樹脂(I)と、融点が180度以上250度以下のポリアミド樹脂(A)に対しメラミンシアヌレート(B)とポリアルキレン多価アルコールまたはその脂肪酸エステルから選ばれた少なくとも1種の界面活性剤(C)からなるポリアミド樹脂複合物(II)を溶融混練することを特徴とする難燃性ポリアミド樹脂組成物の製造方法、
(2)樹脂複合物(II)中のメラミンシアヌレート(B)の含有量が30質量%以上45質量%以下である上記(1)に記載の難燃性ポリアミド樹脂組成物の製造方法、
(3)樹脂組成物中の界面活性剤(C)の含有量が0.25質量%以上2.0質量%以下である上記(1)または(2)に記載の難燃性ポリアミド樹脂組成物の製造方法、
That is, the present invention
(1) A method for producing a flame-retardant polyamide resin composition having a content of melamine cyanurate (B) of 11% by mass or more and 20% by mass or less, wherein the melting point is a polyamide resin (I ) And at least one surfactant (C) selected from melamine cyanurate (B) and polyalkylene polyhydric alcohol or fatty acid ester thereof with respect to a polyamide resin (A) having a melting point of 180 degrees or more and 250 degrees or less. A method for producing a flame-retardant polyamide resin composition, comprising melt-kneading the polyamide resin composite (II)
(2) The method for producing a flame-retardant polyamide resin composition according to the above (1), wherein the content of the melamine cyanurate (B) in the resin composite (II) is 30% by mass or more and 45% by mass or less,
(3) The flame retardant polyamide resin composition according to the above (1) or (2), wherein the content of the surfactant (C) in the resin composition is 0.25 mass% or more and 2.0 mass% or less. Manufacturing method,
(4)界面活性剤(C)が、ポリアルキレングリコールと脂肪族カルボン酸とのエステル誘導体である上記(1)から(3)のいずれかに記載の難燃性ポリアミド樹脂組成物の製造方法、
(5)界面活性剤の含有量[C]とメラミンシアヌレートの含有量[B]の比([C]/[B])が0.025<[C]/[B]<0.1であることを特徴とする上記(1)から(4)のいずれかに記載の難燃性ポリアミド樹脂組成物の製造方法、
(6)ポリアミド樹脂(A)が、ポリアミド6、ポリアミド6Iあるいはポリアミド6、ポリアミド66、ポリアミド6C、ポリアミド610、ポリアミド612、ポリアミド6Iのうち少なくとも2種類の異なるポリアミド成分を含むポリアミド共重合体から選ばれたものであることを特徴とする上記(1)から(5)のいずれかに記載のポリアミド樹脂組成物の製造方法、
(7)上記(1)から(6)のいずれかに記載の製造方法により製造される難燃性ポリアミド樹脂組成物、である。
(4) The method for producing a flame retardant polyamide resin composition according to any one of (1) to (3), wherein the surfactant (C) is an ester derivative of a polyalkylene glycol and an aliphatic carboxylic acid,
( 5 ) The ratio ([C] / [B]) of the surfactant content [C] and the melamine cyanurate content [B] is 0.025 <[C] / [B] <0.1. The method for producing a flame retardant polyamide resin composition according to any one of (1) to ( 4 ), wherein:
( 6 ) The polyamide resin (A) is selected from polyamide 6, polyamide 6I or polyamide 6, polyamide 66, polyamide 6C, polyamide 610, polyamide 612, and polyamide copolymer containing at least two different polyamide components The method for producing a polyamide resin composition according to any one of (1) to ( 5 ), wherein
( 7 ) A flame-retardant polyamide resin composition produced by the production method according to any one of (1) to ( 6 ) above.
本発明は、厚さが3mmの試験片でIEC60695−2−13規格によるグローワイヤー着火温度が775度以上と優れた難燃性を有し、高靭性、高い流動性並びに外観に優れるポリアミド樹脂組成物およびその製造方法を提供するものである。 The present invention is a polyamide resin composition having an excellent flame retardancy with a glow wire ignition temperature of 775 ° C. or higher according to IEC60695-2-13 standard and a high toughness, high fluidity and appearance, with a test piece having a thickness of 3 mm And a manufacturing method thereof.
本願発明について、以下具体的に説明する。
本発明のポリアミド樹脂(I)は、主鎖中にアミド結合(-NHCO-)を有する重合体で融点が255度以上350度以下であるものが用いられる。特に、融点が255度以上300度以下であることが好ましく、255度以上280度以下だと更に好ましい。融点は示差走査熱量(DSC)測定で求めることができる。具体的には、示差熱量測定装置を用いて試料を室温から20度/分の昇温条件下で測定し、吸熱ピーク温度(Tm1)を観測した後、Tm1より20〜50度高い温度で3分間保持する。次いで20度/分の降温条件で室温まで試料を冷却した後に、再度20度/分の昇温条件で測定した際の吸熱ピークを観測し、そのピークトップを示す温度を融点とする。融点が255度以上のポリアミド樹脂を用いると、高い熱時剛性を有するポリアミド樹脂組成物となり、350度以下のポリアミド樹脂を用いるとメラミンシアヌレートの分解が抑えられるとともに良好な加工性を有するポリアミド樹脂組成物となる。
The present invention will be specifically described below.
As the polyamide resin (I) of the present invention, a polymer having an amide bond (—NHCO—) in the main chain and having a melting point of from 255 ° C. to 350 ° C. is used. In particular, the melting point is preferably from 255 degrees to 300 degrees, more preferably from 255 degrees to 280 degrees. The melting point can be determined by differential scanning calorimetry (DSC) measurement. Specifically, the sample was measured under a temperature rising condition of 20 degrees / minute from room temperature using a differential calorimeter, and after observing the endothermic peak temperature (Tm1), it was measured at a temperature 20 to 50 degrees higher than Tm1. Hold for a minute. Next, after cooling the sample to room temperature under a temperature-decreasing condition of 20 degrees / minute, an endothermic peak when measured again under a temperature-raising condition of 20 degrees / minute is observed, and the temperature showing the peak top is taken as the melting point. When a polyamide resin having a melting point of 255 ° C. or higher is used, a polyamide resin composition having high thermal rigidity is obtained. When a polyamide resin having a melting point of 350 ° C. or lower is used, decomposition of melamine cyanurate is suppressed and good processability is obtained. It becomes a composition.
ポリアミド樹脂(I)として好適なポリアミドは、例えばポリカプロラクタム(ポリアミド6)、ポリテトラメチレンアジパミド(ポリアミド46)、ポリヘキサメチレンアジパミド(ポリアミド66)、ポリヘキサメチレンシクロヘキシルアミド(ポリアミド6C)、ポリヘキサメチレンセバカミド(ポリアミド610)、ポリヘキサメチレンドデカミド(ポリアミド612)、ポリウンデカラクタム(ポリアミド11)、ポリドデカラクタム(ポリアミド12)、ポリヘキサメチレンイソフタルアミド(ポリアミド6I)、ポリヘキサメチレンテレフタルアミド(ポリアミド6T)、ポリノナンメチレンテレフタルアミド(ポリアミド9T)、ポリドデカメチレンテレフタルアミド(ポリアミド12T)、ポリメタキシリレンアジパミド(ポリアミドMXD6)およびこれらのうち少なくとも2種類の異なったポリアミド形成成分を含むポリアミド共重合体、およびこれらの混合物などのうち、上記の融点の範囲を満たすものが挙げられる。中でも本発明の課題を達成するための好ましいポリアミドは、ポリアミド6、ポリアミド66、ポリアミド6C、ポリアミド610、ポリアミド612、ポリアミド6I、ポリアミド6T、ポリアミド12T及びこれらのうち少なくとも2種類の異なるポリアミド成分を含むポリアミド共重合体あるいはこれらの混合物などである。さらに好ましくは、ポリアミド6、ポリアミド66、ポリアミド6C、ポリアミド6I及びこれらのうち少なくとも2種類の異なるポリアミド成分を含むポリアミド共重合体あるいはこれらの混合物などである。 Polyamides suitable as the polyamide resin (I) are, for example, polycaprolactam (polyamide 6), polytetramethylene adipamide (polyamide 46), polyhexamethylene adipamide (polyamide 66), polyhexamethylene cyclohexylamide (polyamide 6C). , Polyhexamethylene sebacamide (polyamide 610), polyhexamethylene dodecamide (polyamide 612), polyundecalactam (polyamide 11), polydodecalactam (polyamide 12), polyhexamethylene isophthalamide (polyamide 6I), poly Hexamethylene terephthalamide (polyamide 6T), polynonanemethylene terephthalamide (polyamide 9T), polydodecamethylene terephthalamide (polyamide 12T), polymetaxylylene adipamide Polyamide MXD6), and polyamide copolymers comprising at least two different polyamide forming components among these, and among a mixture thereof, are those that satisfy the above ranges of the melting point. Among them, preferred polyamides for achieving the object of the present invention include polyamide 6, polyamide 66, polyamide 6C, polyamide 610, polyamide 612, polyamide 6I, polyamide 6T, polyamide 12T, and at least two different polyamide components among them. Polyamide copolymer or a mixture thereof. More preferred are polyamide 6, polyamide 66, polyamide 6C, polyamide 6I and a polyamide copolymer containing at least two different polyamide components, or a mixture thereof.
本発明のポリアミド樹脂複合物(II)は、融点が180度以上250度以下のポリアミド樹脂(A)、メラミンシアヌレート(B)及び界面活性剤(C)を溶融混練して得たものである。
当該複合物(II)に用いられるポリアミド樹脂(A)は、主鎖中にアミド結合(-NHCO-)を有する重合体で融点が180度以上250度以下であるものが用いられる。特に融点が210度以上250度以下であることが好ましく、230度以上250度以下であると更に好ましい。融点が180度以上250度以下のポリアミド樹脂を用いると、加工時のメラミンシアヌレートの分解が著しく抑えられ、また組成物の熱時剛性と流動性のバランスに優れたポリアミド樹脂組成物となる。
The polyamide resin composite (II) of the present invention is obtained by melt-kneading a polyamide resin (A) having a melting point of 180 ° C. or more and 250 ° C. or less, a melamine cyanurate (B), and a surfactant (C). .
As the polyamide resin (A) used for the composite (II), a polymer having an amide bond (—NHCO—) in the main chain and having a melting point of 180 ° C. or more and 250 ° C. or less is used. In particular, the melting point is preferably 210 degrees or more and 250 degrees or less, and more preferably 230 degrees or more and 250 degrees or less. When a polyamide resin having a melting point of 180 ° C. or more and 250 ° C. or less is used, decomposition of melamine cyanurate during processing is remarkably suppressed, and a polyamide resin composition having an excellent balance between thermal rigidity and fluidity of the composition is obtained.
ポリアミド樹脂(A)として好適なポリアミドは、例えばポリアミド6、ポリアミド46、ポリアミド66、ポリアミド6C、ポリアミド610、ポリアミド612、ポリアミド11、ポリアミド12、ポリアミド6I、ポリアミド6T、ポリアミド9T、ポリアミド12T、ポリアミドMXD6およびこれらのうち少なくとも2種の異なったポリアミド形成成分を含むポリアミド共重合体、およびこれらの混合物などのうち融点が上記の温度範囲を満たすものが挙げられる。中でも本発明の課題を達成するための好ましいポリアミドは、ポリアミド6、ポリアミド6Iあるいはポリアミド6、ポリアミド66、ポリアミド6C、ポリアミド610、ポリアミド612、ポリアミド6Iのうち少なくとも2種類の異なるポリアミド成分を含むポリアミド共重合体あるいはこれらの混合物などである。更に好ましくは、ポリアミド6あるいはポリアミド6、ポリアミド66、ポリアミド6Iのうち少なくとも2種類の異なるポリアミド成分を含むポリアミド共重合体である。 Polyamides suitable as the polyamide resin (A) include, for example, polyamide 6, polyamide 46, polyamide 66, polyamide 6C, polyamide 610, polyamide 612, polyamide 11, polyamide 12, polyamide 6I, polyamide 6T, polyamide 9T, polyamide 12T, and polyamide MXD6. Among these, polyamide copolymers containing at least two different polyamide-forming components, and mixtures thereof, those having a melting point satisfying the above temperature range can be mentioned. Among them, preferred polyamides for achieving the object of the present invention include polyamide 6, polyamide 6I or polyamide 6, polyamide 66, polyamide 6C, polyamide 610, polyamide 612, and polyamide 6I containing at least two different polyamide components. A polymer or a mixture thereof. More preferably, it is a polyamide copolymer containing at least two different polyamide components of polyamide 6, polyamide 6, polyamide 66, and polyamide 6I.
当該複合物(II)に用いられるメラミンシアヌレート(B)は、メラミンとシアヌル酸との等モル反応物であり、例えば90〜100度程度の水中下で、メラミンとシアヌル酸の水溶液とを撹拌し、反応生成として得られた沈殿物を濾過乾燥後、粉砕して微粉末とした物であって、この様なメラミンシアヌレートは市販されており、工業的に入手可能な物を使用することができる。 The melamine cyanurate (B) used in the composite (II) is an equimolar reaction product of melamine and cyanuric acid. For example, the aqueous solution of melamine and cyanuric acid is stirred in water of about 90 to 100 degrees. The precipitate obtained as a reaction product is filtered and dried and then pulverized into a fine powder. Such melamine cyanurate is commercially available and should be industrially available. Can do.
当該複合物(II)に用いられる界面活性剤(C)は、ポリエチレングリコール、ポリプロピレングリコール、ポリブチレングリコールなどのポリアルキレングリコール類やこれらグリコールと、カプリン酸、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、セロチン酸、モンタン酸、メリシン酸、オレイン酸、エルカ酸等の脂肪族カルボン酸とのエステル誘導体が挙げられるが、工業的に入手が容易である。特に作用効果が高い物としてはポリエチレングリコールモノラウレート、ポリエチレングリコールモノステアレート、ポリエチレングリコールジステアレート、ポリエチレングリコールモノオレエート、ポリオキシエチレンソルビタンモノラウレート、ポリオキシエチレンソルビタンモノステアレート、ポリオキシエチレンソルビタントリステアレート、ポリオキシエチレンソルビタンモノオレエート、ポリオキシエチレンソルビタントリオレエート、ポリオキシエチレンソルビタンモノラウレート、ポリオキシエチレンソルビタンモノステアレート、ポリオキシエチレンソルビタンモノオレエートなどが好適に用いられる。 The surfactant (C) used in the composite (II) includes polyalkylene glycols such as polyethylene glycol, polypropylene glycol and polybutylene glycol, and these glycols, capric acid, lauric acid, myristic acid, palmitic acid, stearin. Examples thereof include ester derivatives with aliphatic carboxylic acids such as acid, behenic acid, serotic acid, montanic acid, melicic acid, oleic acid, and erucic acid, but they are easily industrially available. Particularly effective products include polyethylene glycol monolaurate, polyethylene glycol monostearate, polyethylene glycol distearate, polyethylene glycol monooleate, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monostearate, polyoxy Ethylene sorbitan tristearate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan trioleate, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monooleate, etc. are preferably used .
難燃性ポリアミド樹脂複合物(II)中のメラミンシアヌレート(B)、及び界面活性剤(C)の含有量については特に制約はないが、当該複合物(II)中のメラミンシアヌレート(B)の含有量は30質量%以上45質量%以下であることが好ましく、35質量%以上45質量%以下が更に好ましい。メラミンシアヌレートが30質量%以上45質量%以下であると、熱時剛性と引張特性の観点から好ましい。
一方、当該複合物(II)中の界面活性剤(C)の含有量は、加工性のバランスの観点から、0.75質量%以上4.5質量%以下が好ましく、1.0質量%以上4.0質量%以下が機械的物性と難燃性のバランスの観点から更に好ましい。
Although there is no restriction | limiting in particular about content of melamine cyanurate (B) in surfactant flame retardant polyamide resin composite (II), and surfactant (C), Melamine cyanurate (B) in the said composite (II) ) Is preferably 30% by mass to 45% by mass, and more preferably 35% by mass to 45% by mass. When the melamine cyanurate is 30% by mass or more and 45% by mass or less, it is preferable from the viewpoint of thermal rigidity and tensile properties.
On the other hand, the content of the surfactant (C) in the composite (II) is preferably 0.75% by mass or more and 4.5% by mass or less, and 1.0% by mass or more from the viewpoint of workability balance. 4.0 mass% or less is still more preferable from the viewpoint of the balance between mechanical properties and flame retardancy.
本発明のポリアミド樹脂複合物(II)を得る方法としては、ポリアミド形成モノマー中にメラミンシアヌレート(B)と界面活性剤(C)を配合し、縮重合した後ストランド状にして冷却し切断して造粒する方法や、押出機等でポリアミド樹脂(A)にメラミンシアヌレート(B)と界面活性剤(C)を溶融混練し、ストランド状となし冷却し切断して造粒する方法を挙げることができる。溶融混練を行う装置としては、一般に実用化されている混練機が適用できる。例えば、一軸又は多軸混練押出機、ロール等を用いればよい。溶融混練の順序には特に制限は無く、全成分を同時に混練する方法、又は任意の2成分をあらかじめ混練し、得られたものと残りの1成分を混練する方法、更に押出し機の途中から逐次各成分をフィードし混練する方法などを用いてもよい。溶融混練によって当該複合物を得る場合、混練の温度はポリアミド樹脂(A)の融点以上であって270度未満が加工性およびメラミンシアヌレート(B)の分解を著しく抑制できることから好ましく、更に好ましくはポリアミド樹脂(A)の融点より5度以上高い温度であって260度以下である。又、難燃性ポリアミド樹脂複合物(II)にはポリアミド樹脂に常用の滑剤、成型性改良剤が含有されていても良い。 As a method for obtaining the polyamide resin composite (II) of the present invention, a melamine cyanurate (B) and a surfactant (C) are blended in a polyamide-forming monomer, subjected to polycondensation, cooled into a strand, and then cut. And a method of melt-kneading the melamine cyanurate (B) and the surfactant (C) into the polyamide resin (A) with an extruder or the like, forming a strand, cooling, cutting and granulating. be able to. As a device for performing melt kneading, a kneader that is generally put into practical use can be applied. For example, a uniaxial or multiaxial kneading extruder, a roll or the like may be used. The order of melt kneading is not particularly limited. A method of kneading all the components simultaneously, or a method of kneading any two components in advance and kneading the obtained one and the remaining one component, and further sequentially from the middle of the extruder A method of feeding and kneading each component may be used. When the composite is obtained by melt-kneading, the kneading temperature is preferably not less than the melting point of the polyamide resin (A) and less than 270 degrees because the workability and decomposition of the melamine cyanurate (B) can be remarkably suppressed, and more preferably The temperature is 5 degrees or more higher than the melting point of the polyamide resin (A) and is 260 degrees or less. The flame retardant polyamide resin composite (II) may contain a conventional lubricant and moldability improver in the polyamide resin.
ポリアミド樹脂(I)と難燃性ポリアミド樹脂複合物(II)の混合割合は、難燃性ポリアミド樹脂組成物中にメラミンシアヌレート(B)が11質量%以上20質量%以下含有できるように混合すればよい。機械的物性と難燃性の観点から好ましくは12質量%以上18質量%以下であり、更に好ましくは13質量%以上17質量%である。
樹脂組成物中の界面活性剤(C)の含有量については特に限定されないが、機械的物性と難燃性のバランスの観点から樹脂組成物中に0.25質量%以上2.0質量%以下となるように混合することが好ましく、0.5質量%以上1.0質量%以下が更に好ましい。また、本発明の効果をより発現するために、組成物中の界面活性剤の含有量[C]とメラミンシアヌレートの含有量[B]の比([C]/[B])が0.025<[C]/[B]<0.1であることが機械物性と加工性、難燃性の面から好ましく、0.03<[C]/[B]<0.07であると更に好ましい。
The mixing ratio of the polyamide resin (I) and the flame retardant polyamide resin composite (II) is mixed so that the melamine cyanurate (B) can be contained in an amount of 11% by mass or more and 20% by mass or less in the flame retardant polyamide resin composition. do it. From the viewpoint of mechanical properties and flame retardancy, it is preferably 12% by mass or more and 18% by mass or less, and more preferably 13% by mass or more and 17% by mass.
The content of the surfactant (C) in the resin composition is not particularly limited, but is 0.25% by mass or more and 2.0% by mass or less in the resin composition from the viewpoint of a balance between mechanical properties and flame retardancy. It is preferable to mix so that it may become, and 0.5 mass% or more and 1.0 mass% or less are still more preferable. In order to further develop the effects of the present invention, the ratio ([C] / [B]) of the surfactant content [C] to the melamine cyanurate content [B] in the composition is 0. 025 <[C] / [B] <0.1 is preferable from the viewpoint of mechanical properties, workability, and flame retardancy, and further 0.03 <[C] / [B] <0.07. preferable.
本発明の難燃性ポリアミド樹脂組成物は、ポリアミド樹脂(I)と難燃性ポリアミド樹脂複合物(II)を溶融混練することにより製造される。溶融混練を行う装置としては、一般に実用化されている混練機が適用できる。例えば、一軸又は多軸混練押出機、ロール等を用いればよい。溶融混練の順序には特に制限は無く、2成分を同時に混練する方法、又は押出し機の途中から逐次各成分をフィードし混練する方法などを用いてもよい。混練の温度は、生産性と熱劣化の抑制の観点から、ポリアミド樹脂(I)の融点あるいは軟化点より5〜60度高い温度が好ましく、5〜50度がより好ましく、5〜30度が最も好ましい。 The flame-retardant polyamide resin composition of the present invention is produced by melt-kneading the polyamide resin (I) and the flame-retardant polyamide resin composite (II). As a device for performing melt kneading, a kneader that is generally put into practical use can be applied. For example, a uniaxial or multiaxial kneading extruder, a roll or the like may be used. The order of melt-kneading is not particularly limited, and a method of kneading two components at the same time or a method of feeding and kneading each component sequentially from the middle of an extruder may be used. The temperature for kneading is preferably 5 to 60 degrees higher than the melting point or softening point of the polyamide resin (I), more preferably 5 to 50 degrees, and most preferably 5 to 30 degrees from the viewpoint of productivity and suppression of thermal degradation. preferable.
本発明の難燃性ポリアミド樹脂組成物には、必要に応じて本発明の目的を損なわない範囲で慣用的に用いられる充填剤、例えばガラス繊維や炭素繊維などの無機繊維、マイカ、タルク、粘土鉱物、アルミナ、シリカ、アパタイトなどの無機充填剤、水酸化アルミニウム、水酸化マグネシウム、ホウ酸亜鉛、すず酸亜鉛、ヒドロキシすず酸亜鉛、ポリリン酸アンモニウム、シアヌル酸メラミン、サクシノグアナミン、ポリリン酸メラミン、硫酸メラミン、フタル酸メラミン、リン酸アルミニウム等の難燃剤、チタンホワイト、カーボンブラック等の顔料や着色剤、次亜リン酸ソーダ等の亜リン酸金属塩、ヒンダードフェノールやヒンダードアミンに代表される熱安定剤、高級脂肪酸金属塩、高級脂肪酸アミド、高級脂肪酸エステル等の滑剤、種々の可塑剤、帯電防止剤等の各種添加剤を加えることができる。 In the flame-retardant polyamide resin composition of the present invention, if necessary, a filler that is conventionally used within a range not impairing the object of the present invention, for example, inorganic fibers such as glass fiber and carbon fiber, mica, talc, clay Minerals, inorganic fillers such as alumina, silica, apatite, aluminum hydroxide, magnesium hydroxide, zinc borate, zinc stannate, zinc hydroxystannate, ammonium polyphosphate, melamine cyanurate, succinoguanamine, melamine polyphosphate, Flame retardants such as melamine sulfate, melamine phthalate, and aluminum phosphate, pigments and colorants such as titanium white and carbon black, metal phosphites such as sodium hypophosphite, heat represented by hindered phenols and hindered amines Stabilizers, higher fatty acid metal salts, higher fatty acid amides, higher fatty acid esters and other lubricants, seeds It may be added plasticizers, various additives such as antistatic agents.
以下、本発明を実施例により更に詳細に説明するが、本発明はその要旨を越えない限り、以下の実施例に制限されるものではない。なお、以下の実施例、比較例において記載した物性評価は、以下のように行った。
(1) 融点
パーキンエルマー社製示差熱量測定装置DSC−7を用いた。昇温、降温条件は±20℃/分で行った。試料約10mgを室温から昇温させ、吸熱ピーク温度(Tm1)を観測した後、Tm1より20〜50℃高い温度で3分間保持した。次いで室温まで試料を冷却した後に、再度昇温させて吸熱ピークを観測した。そのピークトップが示した温度を融点とした。
EXAMPLES Hereinafter, although an Example demonstrates this invention still in detail, this invention is not restrict | limited to a following example, unless the summary is exceeded. In addition, the physical property evaluation described in the following examples and comparative examples was performed as follows.
(1) Melting point A differential calorimeter DSC-7 manufactured by Perkin Elmer was used. The temperature increase and decrease conditions were ± 20 ° C./min. About 10 mg of the sample was heated from room temperature, the endothermic peak temperature (Tm1) was observed, and then held at a temperature 20 to 50 ° C. higher than Tm1 for 3 minutes. Next, after cooling the sample to room temperature, the temperature was raised again and an endothermic peak was observed. The temperature indicated by the peak top was taken as the melting point.
(2)グローワイヤー着火温度
射出成型機(日精樹脂(株)製FN3000)を用いて、シリンダー温度270度、金型温度80度に設定し、射出12秒、冷却12秒の射出成型条件で9.0mm×6.0mm×3.0mmの試験片を得た。この試験片の着火温度をIEC60695−2−13規格(2000年版)に準拠して測定した。着火温度が775度以上のものを775度と記載し、725度で着火するものを725度、750度で着火するものを750度と記載した。
(2) Glow Wire Ignition Temperature Using an injection molding machine (FN3000 manufactured by Nissei Resin Co., Ltd.), set the cylinder temperature to 270 degrees and the mold temperature to 80 degrees. A test piece of 0.0 mm × 6.0 mm × 3.0 mm was obtained. The ignition temperature of this test piece was measured based on IEC60695-2-13 standard (2000 version). Those having an ignition temperature of 775 ° C. or higher were described as 775 °, those igniting at 725 ° were described as 725 °, and those igniting at 750 ° were described as 750 °.
(3) 引張強度及び引張伸度、外観
射出成型機(日精樹脂(株)製PS−40E)を用いて、シリンダー温度270度、金型温度80度に設定し、射出12秒、冷却12秒の射出成型条件で3mm厚みのASTM1号試験片を得たのち、ASTM D638に準じて引張強度及び引張伸度の測定を行った。あわせて外観検査として試験片表面のシルバー発生の有無を目視観察し、発生が無い場合は○、発生が認められる場合は×とした。
(3) Tensile strength and tensile elongation, appearance Using an injection molding machine (PS-40E manufactured by Nissei Resin Co., Ltd.), set the cylinder temperature to 270 degrees and the mold temperature to 80 degrees, injection 12 seconds, cooling 12 seconds After obtaining an ASTM No. 1 test piece having a thickness of 3 mm under the injection molding conditions, tensile strength and tensile elongation were measured according to ASTM D638. At the same time, the appearance of silver on the surface of the test piece was visually observed as an appearance inspection.
[難燃性ポリアミド樹脂複合物(II−1)の製造例]
(A)ポリアミド66/6コポリマー(旭化成ケミカルズ(株)製レオナ9200:融点245度)と(B)メラミンシアヌレート粉末(三菱化学工業株式会社製MCA―C0)と界面活性剤(C)としてポリエチレングリコールモノラウレート(花王株式会社製・エマノーン1112)とを別々に供給出来る重量フィーダーおよび液体供給ポンプを用いてメラミンシアヌレートの含有量が40質量%、界面活性剤の含有量が1.5質量%になるように配合して二軸押出機(東芝機械(株)製TEM35、2軸同方向スクリュー回転型、L/D=47.6(D=37mmφ))を用いて溶融混練をシリンダー温度255度、押出レート30Kg/hr(滞留時間2分)で、減圧せずに押出しを行った。先端ノズルからストランド状にポリマーを排出し、水冷、カッティングを行い、ペレットとし、難燃性ポリアミド樹脂複合物(II−1)を得た。
[Production Example of Flame Retardant Polyamide Resin Composite (II-1)]
(A) Polyamide 66/6 copolymer (Leona 9200 manufactured by Asahi Kasei Chemicals Corporation: melting point 245 degrees), (B) Melamine cyanurate powder (MCA-C0 manufactured by Mitsubishi Chemical Industries, Ltd.) and polyethylene as the surfactant (C) Using a weight feeder and a liquid supply pump capable of separately supplying glycol monolaurate (manufactured by Kao Corporation, Emanon 1112), the content of melamine cyanurate is 40 mass% and the content of surfactant is 1.5 mass The mixture is melted and kneaded using a twin screw extruder (TEM35 manufactured by Toshiba Machine Co., Ltd., twin screw co-rotating screw type, L / D = 47.6 (D = 37 mmφ)) at the cylinder temperature. Extrusion was performed at 255 ° C. and an extrusion rate of 30 kg / hr (residence time 2 minutes) without reducing the pressure. The polymer was discharged in a strand form from the tip nozzle, water-cooled and cut into pellets to obtain a flame-retardant polyamide resin composite (II-1).
[実施例1]
(I)ポリアミド66(旭化成ケミカルズ(株)製レオナ1300:融点262度)60質量%と難燃性ポリアミド樹脂複合物(II−1)40質量%をブレンドし、2軸押出機(東芝機械(株)製TEM35、2軸同方向スクリュー回転型、L/D=47.6(D=37mmφ))を用いて溶融混練をシリンダー温度270度、押出レート30Kg/hr(滞留時間2分)で、減圧せずに押出しを行った。先端ノズルからストランド状にポリマーを排出し、水冷、カッティングを行い、ペレットとした。得られた樹脂組成物を成型材料として評価を行った結果を表1に示す。
[Example 1]
(I) 60% by mass of polyamide 66 (Leona 1300 manufactured by Asahi Kasei Chemicals Co., Ltd .: melting point 262 degrees) and 40% by mass of flame retardant polyamide resin composite (II-1) were blended, and a twin-screw extruder (Toshiba Machine ( Co., Ltd., TEM35, twin-shaft screw rotating type, L / D = 47.6 (D = 37 mmφ)), and melt kneading at a cylinder temperature of 270 degrees and an extrusion rate of 30 kg / hr (residence time 2 minutes) Extrusion was carried out without decompression. The polymer was discharged in a strand form from the tip nozzle, water-cooled and cut to form pellets. Table 1 shows the results of evaluating the obtained resin composition as a molding material.
[実施例2]
(I)ポリアミド66(旭化成ケミカルズ(株)製レオナ1300:融点262度)65質量%と難燃性ポリアミド樹脂複合物(II−1)35質量%をブレンドした。以降の操作は実施例1と同様にしてペレットとした。得られた樹脂組成物を成型材料として評価を行った結果を表1に示す。
[Example 2]
(I) 65% by mass of polyamide 66 (Leona 1300 manufactured by Asahi Kasei Chemicals Corporation: melting point 262 degrees) and 35% by mass of the flame-retardant polyamide resin composite (II-1) were blended. Subsequent operations were carried out in the same manner as in Example 1 to obtain pellets. Table 1 shows the results of evaluating the obtained resin composition as a molding material.
[比較例1]
(I)ポリアミド66(旭化成ケミカルズ(株)製レオナ1300:融点262度)75質量%と難燃性ポリアミド樹脂複合物(II−1)25質量%をブレンドした。以降の操作は実施例1と同様にしてペレットとした。得られた樹脂組成物を成型材料として評価を行った結果を表1に示す。得られた樹脂組成物は難燃性が低く、グローワイヤー着火温度が775度を満たさず、本発明の目的を達成できなかった。
[Comparative Example 1]
(I) 75% by mass of polyamide 66 (Leona 1300 manufactured by Asahi Kasei Chemicals Corporation: melting point 262 degrees) and 25% by mass of the flame-retardant polyamide resin composite (II-1) were blended. Subsequent operations were carried out in the same manner as in Example 1 to obtain pellets. Table 1 shows the results of evaluating the obtained resin composition as a molding material. The obtained resin composition had low flame retardancy, the glow wire ignition temperature did not satisfy 775 degrees, and the object of the present invention could not be achieved.
[比較例2]
(I)ポリアミド66(旭化成ケミカルズ(株)製レオナ1300:融点262度)40質量%と難燃性ポリアミド樹脂複合物(II−1)60質量%をブレンドした。以降の操作は実施例1と同様にしてペレットとした。得られた樹脂組成物の評価結果を表1に示す。得られた樹脂組成物は引張伸度が低く、本発明の目的を達成できなかった。
[Comparative Example 2]
(I) 40% by mass of polyamide 66 (Leona 1300 manufactured by Asahi Kasei Chemicals Corporation: melting point 262 degrees) and 60% by mass of the flame-retardant polyamide resin composite (II-1) were blended. Subsequent operations were carried out in the same manner as in Example 1 to obtain pellets. The evaluation results of the obtained resin composition are shown in Table 1. The obtained resin composition had a low tensile elongation and could not achieve the object of the present invention.
[比較例3]
(I)ポリアミド66(旭化成ケミカルズ(株)製レオナ1300:融点262度)60質量%と難燃性ポリアミド樹脂複合物(II−1)40質量%をブレンドしたのち、2軸押出機での溶融混練を行わずに成型材料として評価を行った結果を表1に示す。得られた樹脂組成物はグローワイヤー着火温度が775度を満たさず、本発明の目的を達成できなかった。
[Comparative Example 3]
(I) After blending 60% by mass of polyamide 66 (Leona 1300 manufactured by Asahi Kasei Chemicals Corporation: melting point 262 degrees) and 40% by mass of the flame-retardant polyamide resin composite (II-1), melting in a twin screw extruder The results of evaluation as a molding material without kneading are shown in Table 1. The obtained resin composition did not satisfy the purpose of the present invention because the glow wire ignition temperature did not satisfy 775 degrees.
[比較例4]
ポリアミド66(旭化成ケミカルズ(株)製レオナ1300:融点262度)とメラミンシアヌレート粉末(三菱化学工業株式会社製MCA―C0)と界面活性剤としてポリエチレングリコールモノラウレート(花王株式会社製・エマノーン1112)とを別々に供給出来る重量フィーダーおよび液体供給ポンプを用いてメラミンシアヌレートの含有量が16質量%、界面活性剤の含有量が0.6質量%になるように配合して二軸押出機(東芝機械(株)製TEM35、2軸同方向スクリュー回転型、L/D=47.6(D=37mmφ))を用いて溶融混錬をシリンダー温度270度、押出レート30Kg/hr(滞留時間2分)で、減圧せずに押出しを行った。先端ノズルからストランド状にポリマーを排出し、水冷、カッティングを行い、ペレットを得た。得られた樹脂組成物の評価結果を表1に示す。得られた樹脂組成物は特に外観が悪く、本発明の目的を達成できなかった。
[Comparative Example 4]
Polyamide 66 (Leona 1300 manufactured by Asahi Kasei Chemicals Corporation, melting point 262 degrees), melamine cyanurate powder (MCA-C0 manufactured by Mitsubishi Chemical Industries, Ltd.), and polyethylene glycol monolaurate (Emanon 1112 manufactured by Kao Corporation) as a surfactant. And a liquid feed pump that can be fed separately to form a melamine cyanurate content of 16% by mass and a surfactant content of 0.6% by mass. (Toshiki Machine Co., Ltd. TEM35, twin-screw rotating in the same direction, L / D = 47.6 (D = 37 mmφ)), kneading is performed at a cylinder temperature of 270 ° C., an extrusion rate of 30 kg / hr (residence time) 2 minutes), extrusion was performed without decompression. The polymer was discharged in a strand form from the tip nozzle, water-cooled and cut to obtain pellets. The evaluation results of the obtained resin composition are shown in Table 1. The obtained resin composition had a particularly bad appearance and could not achieve the object of the present invention.
[比較例5]
ポリアミド66(旭化成ケミカルズ(株)製レオナ1300:融点262度)とポリアミド66/6コポリマー(旭化成ケミカルズ(株)製レオナ9200:融点245度)とメラミンシアヌレート粉末(三菱化学工業株式会社製MCA―C0)と界面活性剤としてポリエチレングリコールモノラウレート(花王株式会社製・エマノーン1112)とを別々に供給出来る重量フィーダーおよび液体供給ポンプを用いて、ポリアミド66/6コポリマーの含有量が23.4質量%、メラミンシアヌレートの含有量が16質量%、界面活性剤の含有量が0.6質量%になるように配合して二軸押出機(東芝機械(株)製TEM35、2軸同方向スクリュー回転型、L/D=47.6(D=37mmφ))を用いて溶融混錬をシリンダー温度270度、押出レート30Kg/hr(滞留時間2分)で、減圧せずに押出しを行った。先端ノズルからストランド状にポリマーを排出し、水冷、カッティングを行い、ペレットを得た。得られた樹脂組成物の評価結果を表1に示す。得られた樹脂組成物はグローワイヤー着火温度が775度を満たさないと共に引張伸度が低く、本発明の目的を達成できなかった。
[Comparative Example 5]
Polyamide 66 (Asahi Kasei Chemicals Corporation Leona 1300: melting point 262 degrees), polyamide 66/6 copolymer (Asahi Kasei Chemicals Corporation Leona 9200: melting point 245 degrees) and melamine cyanurate powder (MCA manufactured by Mitsubishi Chemical Industries, Ltd.) The content of polyamide 66/6 copolymer was 23.4 mass using a weight feeder and a liquid supply pump capable of separately supplying C0) and polyethylene glycol monolaurate (manufactured by Kao Corporation, Emanon 1112) as a surfactant. %, Melamine cyanurate content is 16% by mass, surfactant content is 0.6% by mass, twin screw extruder (TEM35 manufactured by Toshiba Machine Co., Ltd. Rotation type, L / D = 47.6 (D = 37mmφ)) An extrusion rate 30 Kg / hr (2 minutes retention time) were extruded without vacuum. The polymer was discharged in a strand form from the tip nozzle, water-cooled and cut to obtain pellets. The evaluation results of the obtained resin composition are shown in Table 1. The obtained resin composition did not satisfy the object of the present invention because the glow wire ignition temperature did not satisfy 775 degrees and the tensile elongation was low.
本発明の難燃性ポリアミド樹脂組成物は、高い難燃性や高靭性、高い流動性並びに外観に優れている為、様々な機械工業部品や電気電子部品、特にコネクタ等の産業用材料として有用である。 Since the flame-retardant polyamide resin composition of the present invention is excellent in high flame retardancy, high toughness, high fluidity and appearance, it is useful as an industrial material for various machine industrial parts, electrical and electronic parts, particularly connectors. It is.
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