1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions Rev 03 2011 10 26 N Status No replacement named V. Cerato, Eu 2006 12 20 Revised Changed from N-Status to Active Per Ludwig Rodigas 1993 09 01 Released EP00E10258825000 L. Rodigas Controlled document at www.MATS Copyright 2011, Ford Global Tec
2、hnologies, LLC Page 1 of 6 THERMOPLASTIC POLYOLEFIN ELASTOMER (TEO) WSK-M4D873-A1 10% MINERAL FILLED, COLOR PIGMENTED MOLDING COMPOUND, EXTERIOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a 10% mineral filled rigid thermoplastic polyolefin elastomer (TEO) in
3、jection molding compound, color pigmented and with added UV stabilization for exterior use. The material is also suitable for painting, providing that suitable surface pretreatment is used. 2. APPLICATION This specification was released originally for material used for exterior parts, pigmented and/
4、or painted, which are exposed to sunlight such as bumper shells, body side moldings etc. 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 re
5、quirements of this specification, identified by symbol(s), shall be met with data representing 3 sigma values. 3.4 MOLDING COMPOUND (s) 3.4.1 Melt Flow Rate 5 - 12 g/10 minutes (ISO 1133, 230 C, 2.16 kg) (s) 3.4.2 Filler Content 8 - 13% (ISO 3451/1, Method A, 30 minutes at 800 +/- 50 C, test portion
6、 1 to 2 g) 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 min x 10 x 4.0 +/- 0.2 mm (Tensile Bar, ISO 3167) B. 120 x 10 x 4.0 +/- 0.
7、2 mm Specimens with shorter dimensions shall be cut from the center portion of the test specimen A 0061nd/or B. The specimens shall be prepared according to ISO 294. No annealing allowed. ENGINEERING MATERIAL SPECIFICATIONWSK-M4D873-A1Copyright 2011, Ford Global Technologies, LLC Page 2 of 6 3.5.2 D
8、ensity 0.96 - 0.99 g/cm (ISO 1183, Method A) 3.5.3 Hardness, Durometer D 50 - 58 (ISO 868, 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 1.0 GPa (ISO 178, 80 x 10 x 4.0 +/- 0.2
9、 mm specimen, 2 mm/min test speed, 64 mm support span) 3.5.6 Shear Modulus at 23 C 340 - 580 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 clamp
10、s 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 6. (s) 3.5.7 Impact Strength,
11、Izod, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.7.1 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 No break The test specimens must be conditioned for minimum of 6 h at the above specified temperature prior to impact test. Low te
12、mperature testing shall be done within the cold box. (s) 3.5.8 Heat Deflection Temperature, min (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, 0.32 +/- 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-A1Copyright 2011, Ford Global Techn
13、ologies, LLC Page 3 of 6 3.5.9 Heat Aging Performance (ISO 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 I
14、mpact Strength, Izod Change No break (Test Method per para 3.5.7.1, specimens to be notched before heat aging) 3.6 WEATHERING RESISTANCE After exposure in accordance with 3.6.1, 3.6.2, and 3.6.3, the material shall show no color change in excess of specified Gray Scale rating (AATCC Evaluation Proce
15、dure 1/ISO 105-A02). In addition, there shall be no cracking, crazing or other deterioration. A slight loss of gloss or chalking will be allowed provided an acceptable appearance can be achieved by washing and/or polishing with Ford car polish (auto wax) after the outdoor exposure, at permission of
16、the affected Product Development Materials Activity. All initial approvals will be based on the preliminary Weatherometer exposure, pending Florida and Arizona exposure results for final approval. 3.6.1 Xenon Arc Weatherometer Rating 4-5 (SAE J1960, 2000 kJ/m exposure minimum, specimen size: 150 x 1
17、00 mm minimum, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 3.6.2 12 months Florida Rating 4 12 months Arizona (NAAO only) (SAE J1976, 5 south, direct weathering inland, specimen size: 150 x 100 mm, minimum, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 3.6.3 24 months Florida Ratin
18、g 3-4 24 months Arizona (NAAO only) (SAE J1976, 5 south, direct weathering inland, specimen size: 150 x 100 mm, minimum, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D873-A1Copyright 2011, Ford Global Technologies, LLC Page 4 of 6 3.6.4 18 months Town
19、sville (FOA only) Rating 3 - 4 (20 north, direct weathering inland, open rack, specimen size: 150 x 100 mm, minimum, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 3.7 PAINTABILITY (applicable only if required) Painted substrate must comply with all requirements of paint performance specifica
20、tion WSK-M2P145-A. 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 EXPANSION 7.5-5/C (ASTM E 228 or TMA, temperature range 20 - 100 C) 5.2 MOLD SHRINKAGE (ISO 2577, ap
21、prox. 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C 0.80 - 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 0.15 - 0.30% 5.3 SURFACE TENSION Optimal flame treated s
22、urfaces 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. Regrind: compound of 20 weight % regrind (based on single reprocessed material, free of c
23、ontaminations) and 80 weight % virgin material) 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) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D873-A1Copyright 2011, Ford Global Technologies, LLC Page 5 of 6 5.4.
24、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-A1Copyright 2011, Ford Global Technologies, LLC Page 6 of 6
