igh Performance Polyamide PA9T Application in Automotive Kuraray Process of PA9T Manufacturing 1.3-butadiene 1,9-onanediamine Kashima plant (Ibaraki pref.) Terephthalic acid PA9T Kashima plant (Ibaraki pref.) Saijo plant (Ehime pref.) apacity : 11,000MT/Y in ct. 2008
Melting Points of Polyterephthalamides PA6T homopolymer o-polymerization Ex) adipic acid isophthalic acid methyl pentanediame Modified PA6T Melting point( ) Lower chemical resistance Poor moldability Lower abrasion resistance PA6T homopolymer Modified PA6T Decomposition temperature PA9T Moldable temperature umber of carbon in diamine unit Feature of chemical structure Materials Brand name, Producer PA6-6 hemical structure ( 2 ) 6 ( 2 ) 4 n 6 diamine adipic acid Thermal properties Tm=255 Tg=50 PA4-6 StanylDSM ( 2 ) 4 ( 2 ) 4 4 diamine adipic acid n Tm=290 Tg=78 PA6-6T Arlen Mitsui Amodel A-4000Solvay (Zytel T52Dupont) ( 2 ) 6 ( 2 ) 4 n 6 diamine adipic acid terephthalic acid Tm=310 Tg=85 modified PA6-T PA6-6IT Amodel A-1000Solvay ( 2 ) 6 ( 2 ) 4 n 6 diamine adipic acid isophthalic acid terephthalic acid Tm=310 Tg=126 PA6M-T Zytel T51Dupont ( 2 ) 6 3 n 6 diamine methylpentane diamie terephthalic acid Tm=305 Tg=135 PA9-T Kuraray ( 2 ) 9 n 3 9 diamine methyloctane diamie terephthalic acid Tm=263 306 Tg=125
Feature of PA9T Low water absorption Superior dimensional stability hemical and hydrolysis resistance Mechanical properties at elevated temp. (TgPA9T > PA46 > PA66) Long term heat resistance utstanding fuel barrier properties Water absorption properties Water absorptio on (%) 15 10 5 0 PA9T 23, in water (0.2mmt) Long chain (9) PA46 PA66 PA6T 1000A 0 5 10 15 20 Time (days) PA46
Gear unit for air conditioner : low water absorption Downsizin g GradeG1300A, 1000A Previous materialpmpa66 PA66 ProblemBreaking due to lack of strength in Low water absorption downsized design Abrasion resistance Strength at high temp. RequirementLow water absorption, Abrasion resistance, Strength at high temp. Gear for wiper motor : Low water absorption Grade1000A Low water absorption Abrasion resistance Strength at high temp. Previous material PM Problem Breaking due to lack of strength in downsized design Requirement Low water absorption, Abrasion resistance, Strength at high temp.
Rack guide for steering : Low water absorption GradeG1352A Previous material Aluminum sinter Problem igh cost and weight Requirement Dimensional stability, Abrasion resistance, Strength at high temp. Low water absorption (Dimensional stability) vs other Polyamide Strength at high temp. hemical resistance Retention of tensile strength (%) PA9T PA6T PA46 PA66 PPS Gasoline 86 86 71 86 98 Engine oil 89 88 67 81 97 Methanol 72 35 54 39 98 Toluene 82 77 74 68 95 hloroform 87 85 71 68 87 ot water (80) 90 63 40 44 96 Sulphuric acid (10%aq.) 81 52 42 39 98 a (50%aq.) 85 62 59 71 92 al 2 (50%aq.) 92 64 52 73 97 Retention(%) of tensile strength after dipping in solvent at 23 for 7 days Thickness of specimen : 0.2mmt *Yellow cells show that maintains 80% of initial property
Roller for slide door : hemical resistance Grade1000A Previous material PA46 Problem Abrasion due to degradation caused by calcium chloride Requirement Abrasion resistance, alcium chloride resistance alcium chloride resistance Protect tube for wire harness : hemical resistance Grade1006D Previous material PA46 Problem Degradation of tube caused by calcium chloride Requirement alcium chloride resistance eat resistance alcium chloride resistance
ousing for thermostat : ydrolysis resistance GradeG1350A Previous material PPS Problem eavy, Low impact strength Requirement ydrolysis resistance, Low density, Toughness Low density Toughness Skip secondary processing Mechanical properties at elevated temp. Flexural strength (M MPa) 1000 100 10 Flexural strength of unreinforced grade PA46 PA9T 1000A PA6T Flexural modulus (GPa) 10 Flexural modulus of unreinforced grade 1 0.1-50 0 50 100 150 200 250-50 0 50 100 150 200 250 Temperature () 1 PA46 PA6T Temperature () Tg : PA9T PA6T > PA46 rystallinity : PA9T PA46 > PA6T
Gear for AFS : Strength at high temperature Adaptive Front Lighting System GradeG1300A Previous material ew system Requirement Strength at high temp., Abrasion resistance Strength at high temp. Abrasion resistance Long term heat resistance (GF30%) Retention of tensile strength (%) PA9T G1300A eat aging time (hr) Retention of tensile strength (%) PA9T160 PA66160 PA9T190 PA66190 eat aging time (hr) MaterialPA9T Genestar G1300A (GF30%) PA66 (GF33%)
Intercooler tank : Strength at high temperature GradeG1300A Previous material Aluminum die cast, PA46, PA66 Problem eavy, alcium chloride resistance, Long term heat resistance, Acid resistance (for LPL-EGR) Requirement alcium chloride resistance, Long term heat resistance, Fatigue resistance at high temp., Acid resistance (for LPL-EGR) Long term heat resistance, Fatigue resistance at high temp. alcium chloride resistance, Acid resistance (for LPL-EGR) Fuel E10 barrier properties 4065%R Specimen configuration : Film (Thickness : 100 m) Analytical instrument : Gas chromatography Fuel E10 : isooctane/toluene/ethanol = 45/45/10 vol.%
䖂Fuel related parts : Fuel resistance Quick connector Grade㸸 㸸G1300A, G1301A, G1201A Fuel tube Fuel tank Lock nut Grade㸸 㸸1001D Grade㸸 㸸1001A Emission control in USA 2004 LEV II Demand for barrier materials is growing Applications Gear for wiper motor Insulator for EGR valve motor ousing for thermostat Gear for air conditioner Quick connector Intercooler tank Fuel tube Bearing retainer Lock nut ead lamp actuator Protect tube for wire harness Rack guide for steering Roller for slide door
Typical properties of unreinforced grades Grade Unit Test method (IS) Genestar Unreinforced Grades Standard Abrasion resistance Toughened Extrusion Glass fiber content Physical properties Specific gravity g/cm3 Water absorption23 in water, 24hrs % Mechanical properties Tensile strength MPa Tensile elongation Flexural strength MPa Flexural modulus GPa harpy impact strength (notched) kj/m 2 Thermal properties Melting point Glass transition DTUL (1.82MPa) Dimensional characteristics Molding shrinkage :in direction of flow (2mmt) :at right angles to flow Abrasion properties ritical PV value kg/cm 2 cm/sec oefficient of Friction P=10kgf/cm 2 Wear P=10kgf/cm 2 mg * Table shows typical values, which are not specified values. Typical properties of reinforced grade Grade Unit Test method Low warpage ydrolysis resistance Abrasion resistance Toughened onductive Toughened Glass fiber content Physical properties (IS) Standard Genestar Reinforced Grades Specific gravity g/cm3 Water absorption23 in water, 24hrs % Mechanical properties Tensile strength MPa Tensile elongation Flexural strength MPa Flexural modulus GPa harpy impact strength (notched) kj/m 2 Thermal properties Melting point Glass transition DTUL (1.82MPa) Dimensional characteristics Molding shrinkage :in direction of flow (2mmt) :at right angles to flow Abrasion properties ritical PV value kg/cm 2 cm/sec oefficient of Friction P=10kgf/cm 2 Wear P=10kgf/cm 2 mg * Table shows typical values, which are not specified values.
ontact information orth America Rick Evans 2625 Bay Area Blvd., Suite 600 ouston, TX 77058, USA Phone : +1-281-283-1712 Fax : +1-713-495-7312 Email : rick.evans@kuraray.com South America Yuki Shiomi Al.ampinas, 997-5 andar, sala 51 EP01404-001, Jd.Paulista, Sao Paulo, SP, Brasil Phone : +55-11-2615-3531 Fax : +55-11-2615-3529 Email : Yuki_Shiomi@kuraray.com.br Europe/Middle East/Africa David Smits aven 1053, ieuwe Weg Bus 10 B-2070 Zwijndrecht (Antwerp), Belgium Phone : +32-3-250-9737 Fax : +32-3-250-9745 Email : david.smits@eval.be Asia-Pacific Keiichi ta Toyopet-issay Bldg., 2-13-30, igashisakura, igashi-ku, agoya-shi, Aichi 461-0005, Japan Phone : +81-52-933-2227 Fax : +81-52-933-9235 Email : Keiichi_ta@kuraray.co.jp www.genestar.jp/en/