1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 09 21 N-STATUS No Replacement Named, No known use C. Mracna, NA 2004 10 13 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.10, 3.11 Corrected numbering 3.6.7, 3.6.8, 3.6.9 1991 05 16 Released NB00I10043054083 K. Minnich L. Graham Printed c
2、opies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 1 of 3 THERMOPLASTIC POLYOLEFIN (TPO) MOLDING WSB-M2D467-A COMPOUND, INTERIOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a flexible thermoplastic polyolefin (TPO) injection and/or extr
3、usion molding compound with UV stability for self-colored interior applications. 2. APPLICATION This specification was released originally for material used for interior seat belt sling boot applications. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part
4、producers must conform to the Companys Standard requirements For Production Materials (WSS-M99P1111-A). 3.4 DYNAMIC MECHANICAL ANALYSIS (ASTM D 4065) Ford Motor Company, at its option, may establish a shear modulus/damping vs. temperature curves plotted for -50 to +170 C temperature range for materi
5、al/parts supplied to this specification. The shear modulus and damping curves established for initial approval shall constitute the reference standard and shall be kept on file at the designated material laboratory. All samples shall produce shear modulus and damping curves that correspond to the re
6、ference standard when tested under the same conditions. 3.5 MOLDING COMPOUND 3.5.1 Filler Content 16 - 20% (ISO 3451/1, Method A) 3.6 MOLDED TEST SPECIMEN 3.6.1 Preparation of Test Specimens Unless otherwise specified, all tests shall be conducted on specimens die cut from injection molded plaques 1
7、50 x 100 x 2.0 +/- 0.2 mm. The plaques shall be molded according to ISO 294 and film gated along the upper 100 mm edge. No annealing allowed, unless otherwise specified. 3.6.2 Density 0.98 - 1.02 g/cm3(ISO 1183, Method A/ASTM D 792, Method A1) 3.6.3 Hardness, International 82 - 88 (ISO 48/ASTM D 141
8、5) ENGINEERING MATERIAL SPECIFICATIONWSB-M2D467-APrinted copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 2 of 3 3.6.4 Hardness, Durometer A 82 - 88 (ISO 868/ASTM D 2240, 6 mm thick plied-up specimen, instantaneous reading) 3.6.5 Tensile Strength at Break, min 6.6 MPa (ISO
9、R 527, type 2/ASTM D 412, Die C, 115 x 6 x 2.0 +/- 0.2 mm specimen, 500 mm/minute test speed) 3.6.5.1 Elongation at Break, min 390% (Test acc. to para 3.6.5) 3.6.6 Tear Strength, min (ISO 34, Method B, procedure a/ASTM D 624, Die C) 3.6.6.1 Parallel to Flow 43.8 kN/m 3.6.6.2 Perpendicular to Flow 44
10、.6 kN/m 3.6.7 Compression Set, max (ISO 815, large type-plied specimen/ASTM D 395, Method B, type 1-plied specimen) 3.6.7.1 22 h at 70 +/- 1 C 83% 3.6.7.2 70 h at 100 +/- 2 C 98% 3.6.8 Brittleness Point, max - 60 C (ASTM D 2137, Method A) 3.6.9 Heat Aging (ISO 188/ASTM D 573, 1000 h at 100 +/- 2 C)
11、3.6.9.1 Hardness Change, max +/- 5% 3.6.9.2 Tensile Strength Change, max +/- 25% 3.6.9.3 Elongation Change, max -25% 3.6.9.4 Brittleness or Bend Test No cracks 3.7 FOGGING (FLTM BO 116-03) Fog Number, min 60 The formation of droplets or coalescence into a clear film is cause for rejection. 3.8 FLAMM
12、ABILITY (ISO 3795/SAE J369) 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. ENGINEERING MATERIAL SPECIFICATIONWSB-M2D467-APrinted copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 3 of 3 3.9 W
13、EATHERING RESISTANCE After exposure in accordance with 3.9.1 and 3.9.2 the material shall show no fading 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 l
14、oss of gloss or chalking will be allowed provided an acceptable appearance can be achieved by washing with mild detergents and water (ratio 5:95 by volume) after the Florida exposure. All initial approvals will be based on the preliminary Weatherometer exposure, pending Florida exposure results for
15、final approval. 3.9.1 Xenon Arc Weatherometer Rating 4 - 5 (SAE J1885, 1240 kJ/m2exposure minimum specimen size: 150 x 100 mm minimum, 2.0 +/- 0.2 mm thick, molded in smooth low gloss mold) 3.9.2 12 Months Florida Rating 4 - 5 (FLTM BI 160-01, 5 south, under glass, specimen size: 150 x 100 mm minimu
16、m, 2.0 +/- 0.2 mm thick, molded in smooth low gloss mold) 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 13.0 - 17.0-5/ C (ASTM D 696) 5.2 MOLD SHRINKAGE (I
17、SO 2577, approx. 150 x 100 x 2.0 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C 0.7 - 1.1% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0.5 - 0.9% . After 30 minutes at 120 C 0.8 - 1.2% 5.3 OZONE RESISTANCE, max Rating 0 (FLTM BP 101-01, Procedure A, tensile specimen, at 50% elongation)
