1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 09 21 N-STATUS No Replacement Named, No known use C. Mracna, NA 2004 10 15 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 1993 06 07 Released C010307821 P Thomas Printed copies are uncontrolled Copyright 2009, Ford Global Techn
2、ologies, LLC Page 1 of 3 THERMOPLASTIC ELASTOMER (TES+TPU) STYRENE BLOCK WSD-M2D474-A1 COPOLYMER, THERMOPLASTIC POLYURETHANE BLEND, 72 DUROMETER A HARDNESS, EXTERIOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a thermoplastic elastomer styrene block copolymer
3、 modified with thermoplastic polyurethane. The material contains added UV stabilisation for exterior use. 2. APPLICATION This specification was released originally for material used as a rear lamp gimp on CE14. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and
4、 part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 MOLDED TEST SPECIMEN 3.4.1 Preparation of Test Specimens Unless otherwise specified, all tests shall be conducted on specimens die cut from injection molded plaques 150 x 100 x 2.0 +/- 0
5、2 mm. The plaques shall be molded according to ISO 294 and film gated along the upper 100 mm edge. No annealing allowed, unless specified otherwise. 3.4.2 Density, g/cm31.02 +/- 0.10 (ISO 1183, Method A/ASTM D 792, Method A1) 3.4.3 Hardness, International 77 +/- 5 (ISO 1400/ASTM D 1415) 3.4.4 Hardn
6、ess, Durometer A 72 +/- 5 (ISO 868/ASTM D 2240, instantaneous, plied-up specimen. Hand held durometers shall not be used) 3.4.5 Tensile Strength, min 4 MPa (ISO R 527, type 2/ASTM D 412, Die C, 500 mm/minute test speed) 3.4.6 Elongation at Break, min 400% (Test acc. to para 3.4.5) ENGINEERING MATERI
7、AL SPECIFICATIONWSD-M2D474-A1Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 2 of 3 3.4.7 Modulus at 100% Elongation, min 2 MPa (Test acc. to para 3.4.5) 3.4.8 Tear Strength, min 25 kN/m (ISO 34, Method B, Procedure A/ ASTM D 624, Die C) 3.4.9 Compression Set, max
8、85% (ISO 815, Large Type-plied specimen/ ASTM D 395, Method B, Type 1 plied specimen, 22 h at 70 +/- 2 C) 3.4.10 Brittleness Point, max -40 C (ISO 812, Type B specimen/ASTM D 2137, Method A) 3.4.11 Ozone Resistance, max Rating 0 (FLTM BP 101-01, Procedure A, tensile specimen, at 20% elongation) 3.5
9、HEAT AGING (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 125 +/- 2 C) 3.5.1 Hardness Change, max -4 3.5.2 Tensile Strength Change, % max +90 3.5.3 Elongation Change, % max +50 3.6 WEATHERING RESISTANCE After exposure in accordance with 3.6.1, 3.6.2 and 3.6.3 the material shall show no fad
10、ing or color change in excess of specified AATCC rating (AATCC Gray Scale for Evaluating Change in color, 10 Step). 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
11、 with mild detergents and water (ratio 5:95 by volume). All initial approvals will be based on the preliminary Weatherometer exposure, pending Florida exposure results for final approval. 3.6.1 Xenon Arc Weatherometer Rating 4 - 5 (SAE J 1960, 1980 kJ/m2exposure minimum, specimen size: 150 x 100 mm
12、minimum, 2.0 +/- 0.2 mm thick, molded in smooth polished mold) 3.6.2 12 months Florida Rating 4 (FLTM BI 160-01, 5 south, direct weathering inland, specimen size: 150 x 100 mm minimum, 2.0 +/- 0.2 mm thick, molded in smooth polished mold) ENGINEERING MATERIAL SPECIFICATIONWSD-M2D474-A1Printed copies
13、 are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 3 of 3 3.6.3 24 months Florida Rating 3 (FLTM BI 160-01, 5 south, direct weathering inland, specimen size: 150 x 100 mm minimum, 2.0 +/- 0.2 mm thick, molded in smooth polished mold) 3.7 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 2.0 +/- 0.1 mm with a smooth surface. 5. GENERAL INFORMATION The information below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 RECYCLING CODE TES+TPU
