1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 05 18 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 2001 06 22 Revised Updated A. Cockman 1993 08 02 Released EP00E10258823000 K. Gerhards Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of
2、 5 POLYPHENYLENE ETHER + POLYSTYRENE BLEND WSK-M4D844-A9 (PPE+PS), IMPACT RESISTANT MOLDING COMPOUND 1. SCOPE The material defined by this specification is a thermoplastic compound based on polyphenylene ether (or polyphenylene oxide) with high impact polystyrene. 2. APPLICATION This specification w
3、as released originally for material used for painted body parts. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard r
4、equirements For Production Materials (WSS-M99P1111-A). 3.4 MOLDING COMPOUND (s) 3.4.1 Melt Flow Rate 4 - 13 g/10 minutes (ISO 1133, 300 C, 2.16 kg) The material shall be dried for 2 h minimum at 115 - 120 C in a mechanical convection oven immediately preceding the test. 3.5 MOLDED TEST SPECIMEN 3.5.
5、1 Preparation of Test Specimens Unless otherwise specified all tests shall be carried out on injection molded one-end gated test specimens. The following dimensions are required: A. 150 min x 10 x 4.0 +/- 0.2 mm (Tensile Bar, ISO 3167) B. 120 x 10 x 4.0 +/- 0.2 mm Specimens with shorter dimensions s
6、hall be cut from the center portion of the test specimen A and/or B. The specimens shall be prepared according to ISO 294. No annealing allowed. 3.5.2 Density 1.01 - 1.20 g/cm3(ISO 1183, Method A) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D844-A9 Printed copies are uncontrolled Copyright 2006, Ford Gl
7、obal Technologies, LLC Page 2 of 5 (s) 3.5.3 Tensile Strength at Max Load, min 35 MPa (ISO R 527, 150 minimum x 10 x 4.0 +/-0.2 mm specimen, 50 mm/min test speed) (s) 3.5.3.1 Elongation at Break, min 30% (Test Method according to para 3.5.3)(s) 3.5.4 Flexural Modulus, min 1.5 GPa (ISO 178, 80 x 10 x
8、 4.0 +/- 0.2 mm specimen, 2 mm/min test speed, 64 mm support span) 3.5.5 Shear Modulus at 23 C 750 - 950 MPa (ASTM D 4065, forced constant amplitude, fixed frequency of 1 Hz +/- 15%, strain level below 1%. Specimen approx. 60 x 10 x 4.0 +/- 0.2 mm cut from the center of specimen A. Specimen length b
9、etween clamps 35-40 mm. Soak time at each temperature interval - 3 minutes minimum) Additionally, a Shear Modulus versus Temperature curve shall be plotted for -50 to +150 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 5. (s) 3.5.6 Impac
10、t Strength, Izod, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 24 kJ/m23.5.6.2 At -40 +/- 1 C 8 kJ/m 3.5.6.3 At -20 +/- 2 C 10 kJ/m The test specimens must be conditioned for minimum of 6 h at the above specified temperature prior to impact te
11、st. Low temperature testing shall be done within the cold box. (s) 3.5.7 Heat Deflection Temperature, min 100 C (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, 0.32 +/- 0.01 mm deflection. At 1.80 MPa) (s) 3.5.8 Vicat Softening Temperature, min 110 C (ISO 306, 10 x 10 x 4.0 +/- 0.2 mm specimens. Bath -
12、 silicone oil, temperature raise 50 +/- 5 C/h. Dial gage reset to 0 after addition of 5 kg weight. At 50 N load) All specimens dry as molded. If not tested immediately after molding, specimens must be stored in a sealed, moisture-proof container filled with silica gel. ENGINEERING MATERIAL SPECIFICA
13、TIONWSK-M4D844-A9 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 5 3.5.9 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 90 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.9
14、.1 Tensile Strength at Change +/- 15% (Test Method per para 3.5.3) 3.5.9.2 Impact Strength, Izod Change, max -30% (Test Method per para 3.5.6.1, specimens to be notched before heat aging) 3.6 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h and 16 h) Fog Numbe
15、r, min 95 Formation of clear film, droplets or crystals is cause for rejection. 3.7 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 1.0 +/- 0.1 mm with a smooth surface. 5. GENERAL INFORMATION The information given below is provide
16、d for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 6 - 11-5/ C (ASTM E 228 or TMA, temperature range -30 to +30 C) 5.2 MOLD SHRINKAGE (ISO 2577, approx. 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1 Molding
17、Shrinkage After 48 h at 23 +/- 2 C 0.5 - 0.7% 5.2.2 Post Shrinkage (Separate specimens required for each test) After 48 h at 80 C 0.6 - 0.8% After 30 min at 120 C 0.6 - 0.8% ENGINEERING MATERIAL SPECIFICATIONWSK-M4D844-A9 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC
18、Page 4 of 5 5.3 MELT VOLUME RATE 7 - 20 cm3/10 minutes (ISO 1133, 280 C, 5 kg) 5.4 HEAT DEFLECTION TEMPERATURE, min 110 C (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, 0.32 +/- 0.01 mm deflection. At 0.45 MPa) All specimens dry as molded. If not tested immediately after molding specimens must be stor
19、ed in a sealed moisture-proof container filled with silica gel. (s) 5.5 VICAT SOFTENING TEMPERATURE, min 125 C (ISO 306, 10 x 10 x 4.0 +/- 0.2 mm specimens. Bath - silicone oil, temperature raise 50 +/ -5 C/h. Dial gage reset to 0 after addition of 1 kg weight. At 10 N load) All specimens dry as molded. If not tested immediately after molding, specimens must be stored in a sealed, moisture-proof container filled with silica gel. 5.6 RECYCLING CODE PPE+PS ENGINEERING MATERIAL SPECIFICATIONWSK-M4D844-A9 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 5 of 5
