1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 11 05 N-STATUS No replacement named A. Pan, APA 2006 12 20 Revised Changed from N-Status to Active Per Ludwig Rodigas 1993 09 01 Released EP00E10258825000 L. Rodigas Printed copies are uncontrolled Copyright 2010, Ford Global Technologies
2、, LLC Page 1 of 5 THERMOPLASTIC POLYOLEFIN ELASTOMER (TEO) 10% WSK-M4D873-A2 MINERAL FILLED, PAINTABLE VIRGIN AND/OR RECYCLATE NOT TO BE USED FOR NEW DESIGN 1. SCOPE The materials defined by this specification are 10% mineral filled, rigid thermoplastic polyolefin elastomers (TEO) injection molding
3、compounds based on virgin material and/or recyclate. The material may contain up to 100% recyclate, preferably from post consumer bumper parts, providing the recyclate meets the paint and the physical properties requirements including statistical process control data of the virgin material. The mate
4、rials are not UV stabilized and require painting to achieve acceptable weatherability. 2. APPLICATION This specification was released originally for material used for painted bumper shells or other parts of bumper not exposed to direct sunlight, e.g. reinforcements, etc. 3. REQUIREMENTS 3.0 STANDARD
5、 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 specification, identified by symbol(s), shall be met with data representing 3 sigma values. 3.4 MO
6、LDING COMPOUND (s) 3.4.1 Melt Flow Rate 7 - 15 g/ (ISO 1133, 230 C, 2.16 kg) 10 minutes (s) 3.4.2 Filler Content 5 - 15% (ISO 3451/1, Method A, 30 minutes at 800 +/- 50 C, test portion 1 to 2 g) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise specified all tests shall b
7、e carried out on injection molded one-end gated test specimens. ENGINEERING MATERIAL SPECIFICATIONWSK-M4D873-A2Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 5 The following dimensions are required: A. 150 min x 10 x 4.0 +/- 0.2 mm (Tensile Bar, ISO 3167) B.
8、120 x 10 x 4.0 +/- 0.2 mm 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 0.90 - 1.05 g/cm (ISO 1183, Method A) 3.5.3 Hardness, Durometer D 50 - 58 (ISO 8
9、68, 15 s dwell) (s) 3.5.4 Tensile Strength at Yield, min 10 MPa (ISO R 527, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/min test speed) (s) 3.5.5 Flexural Modulus, min 900 MPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/min test speed, 64 mm support span) 3.5.6 Shear Modulus at 23 C 360
10、- 680 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 between clamps 35-40 mm. Soak time at each temperature interval - 3 minutes minimum) Additionally, a
11、 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) 3.5.7 Impact Strength, Izod, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3
12、.5.7.1 At 23 +/- 2 C No break 3.5.7.2 At -40 +/- 1 C 4.0 kJ/m 3.5.7.3 At 0 +/- 2 C 10 kJ/m The 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) 3.5.8 Heat Deflection Temperatu
13、re, min (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, 0.34 +/- 0.01 mm deflection) 3.5.8.1 At 1.80 MPa 41 C 3.5.8.2 At 0.45 MPa 65 C ENGINEERING MATERIAL SPECIFICATIONWSK-M4D873-A2Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 5 3.5.9 Heat Aging Performance (I
14、SO 188, except 150 +/- 50 air changes/h, 1000 h at (130) +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.9.1 Tensile Strength at Yield Change +/- 25% (Test Method per para 3.5.4) 3.5.9.2 Impact Strength, Izod Change No break (Test Method per
15、para 3.5.7.1, 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) Fog Number, min Formation of clear film, droplets or crystals is cause for rejection. 3.7 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The sp
16、ecimen size required for material approval is 355 x 100 x 1.0 +/- 0.1 mm with a smooth surface. 3.8 PAINTABILITY Painted substrate must comply with all requirements of paint performance specification WSK-M2P145-A. 5. GENERAL INFORMATION The information given below is provided for clarification and a
17、ssistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 8.5-5/ C (ASTM E 228 or TMA, temperature range 20 - 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 +
18、/- 2 C 0.8 - 1.2% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0.0 - 0.2% . After 30 min at 120 C 0.1 - 0.3% ENGINEERING MATERIAL SPECIFICATIONWSK-M4D873-A2Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 5 5.3 SURFACE T
19、ENSION Optimal flame treated surfaces should show a Total Surface Tension of minimum 40 mN/m. Measurement: Contact Angle Method 5.4 USE OF REGRIND MATERIAL (Property values of regrind material shall be compared with original virgin material respectively with adequate top-recyclat, regrind: compound
20、of 20 weight % regrind - based on single reprocessed material, free of contaminations - and 80 weight % virgin material respectively adequate top-recyclat) 5.4.1 Melt Flow Rate Change, max +30% (Test method per para 3.4.1) 5.4.2 Tensile Strength at Yield Change +/- 10% (Test method per para 3.5.4) 5
21、.4.3 Flexural Modulus, Change +/- 10% (Test method per para 3.5.5) 5.4.4 Shear Modulus at 23 C Change +/- 10% (Test method per para 3.5.6) 5.4.5 Impact Strength, Izod Change, max -10% (Test method per para 3.5.7.1) 5.4.6 Heat Deflection Temperature Change +/- 10% (Test method per para 3.5.8.1) 5.5 RECYCLING CODE PP+EPDM-M10 ENGINEERING MATERIAL SPECIFICATIONWSK-M4D873-A2Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 5 of 5
