1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 07 20 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.7, 3.8 & 4 2000 03 30 Activated J. Faunt Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 4 THERMOPLASTIC POLYURETHANE ELASTOMER (TPU)/ WSS-M4D950
2、-A1 ACRYLONITRILE-BUTADIENE-STYRENE (ABS) MOLDING COMPOUND, EXTERIOR 1. SCOPE The material defined by this specification is a blended thermoplastic polyurethane (TPU)/acrylonitrile-butadiene-styrene (ABS) injection molding compound. 2. APPLICATION This specification was released originally for mater
3、ial used for exterior painted bodyside moldings applications. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1.1 All requirements of this specific
4、ation, identified by symbol (s), shall be met with data representing 3 sigma values. 3.4 MOLDING COMPOUND (s) 3.4.1 Melt Flow Rate 4.0 - 11.0 g/10 minutes (ISO 1133, 224 C, 2.16 kg) The material shall be dried for a minimum of 4 hours at 100 C in a vacuum oven using full vacuum (25 - 30 mm Hg) immed
5、iately preceding the test. 3.5 MOLDED TEST SPECIMEN 3.5.1 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 minimum x 10 x 4.0 0.2 mm (ISO 3167, Type 1A) B. 120 x 10
6、x 4.0 0.2 mm C. 355 x 100 x 1.27 0.1 mm (ISO 3795) Specimens with shorter dimensions shall 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 1.08 - 1.10 g/cm3(ISO 1183, Method A) ENGINEERING MATER
7、IAL SPECIFICATIONWSS-M4D950-A1Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 4 (s) 3.5.3 Tensile Strength at Break, min 23 MPa (ISO 527-1 & ISO 527-2, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen, test speed: 50 mm/minute) (s) 3.5.3.1 Elongation at Break, min 1
8、45% (Test Method according to para 3.5.3) (s) 3.5.4 Flexural Modulus, min 0.9 GPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen use center section of specimen A or B, 2 mm/min test speed, 64 mm support span) 3.5.5 Shear Modulus at 23 C 320 - 480 MPa (ASTM D 4065, forced constant amplitude, fixed frequ
9、ency 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 between clamps 35-40 mm. Soak time at each temperature interval - 3 minutes minimum) Additionally, a Shear Modulus vs. Temperature curve shall be plotted for -50
10、to +110 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 4. (s) 3.5.6 Impact 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 63 kJ/m23.5.6.2 At -40 +/- 2 C 9 kJ/m23.5.6.
11、3 At -29 +/- 2 C 42 kJ/m2The test specimens must be conditioned for minimum of 6 h at the above specified temperature prior to impact test. Low temperature testing shall be done within the cold box. (s) 3.5.7 Heat Deflection Temperature, min 53 C (ISO 75-1 & ISO 75-2, 80 x 10 x 4.0 +/- 0.2 mm specim
12、en use center section of specimen A, flatwise, 0.34 +/- 0.1 mm deflection. At 1.80 MPa) 3.5.8 Vicat Softening Temperature, min 73 C (ISO 306, 10 x 10 x 4.0 +/- 0.2 mm specimens use center section of specimen A. Bath - silicone oil, temperature rise 50 +/- 5 C/h. Dial gage reset to O after addition o
13、f 5 kg weight. At 50 N load) ENGINEERING MATERIAL SPECIFICATIONWSS-M4D950-A1Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 4 3.5.9 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 85 +/- 2 C. Unaged property values shall be determin
14、ed at the time of the aged properties determination) 3.5.9.1 Tensile Strength at Break Change +/- 15% (Test Method per para 3.5.3) 3.5.9.2 Impact Strength, Izod Change +/- 20% (Test Method per para 3.5.6.1, specimens to be notched before heat aging) 3.6 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, ma
15、x 40 mm/minute The specimen size required for material approval is 355 x 100 x 1.25 +/- 0.1 mm with a smooth surface. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL E
16、XPANSION 8.80-5/C (ASTM E 831 or TMA, temperature range -30 to +100 C) 5.2 MOLD SHRINKAGE (ISO 2577, approx. 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C 0.55% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at
17、 80 C 0.60% 5.3 HEAT DEFLECTION TEMPERATURE 70 C (ISO 75-1 & ISO 75-2, 80 x 10 x 4.0 +/- 0.2 mm specimen use center section of specimen A, flatwise, 0.34 +/- 0.1 mm deflection. At 0.45 MPa) 5.4 RECYCLING CODE ABS+TPUR ENGINEERING MATERIAL SPECIFICATIONWSS-M4D950-A1Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 4
