1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 01 19 N-STATUS No replacement named J. Crist, NA 2006 04 11 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.9, 3.10 & 4 1991 07 17 Released NB00I10043054110 L.A. Graham Printed copies are uncontrolled Copyright 2010, Ford Global Technologi
2、es, LLC Page 1 of 5 POLYPROPYLENE (PP) COPOLYMER, 7% MINERAL WSB-M4D825-A FILLED, COLOR PIGMENTED, LOW GLOSS MOLDING COMPOUND, INTERIOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a molding compound based on polypropylene copolymer, mineral filled, molded-in-
3、color, low gloss, for unpainted interior applications. 2. APPLICATION This specification was released originally for material used for interior trim applications. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR
4、PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 MOLDING COMPOUND 3.4.1 Melt Flow Rate 15 - 23 g/10 minutes (ISO 1133/ASTM D 1238, 230 C, 2.16 kg) 3.4.2 Filler Content 5.0 - 9.0% (ISO 3451/1,
5、Method A, at 650 +/- 25 C) 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
6、 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 0.93 - 0.96 g/cm3(ISO 1183, Method A/ASTM D 792, Method A1) ENGINEERING MATERIAL SPEC
7、IFICATIONWSB-M4D825-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 5 3.5.3 Tensile Strength at Max Load, min 25.0 MPa (ISO R 527/ASTM D 638M, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 5 mm/minute) 3.5.4 Flexural Modulus, min 1.5 GPa (ISO 178/ASTM D 790M, Meth
8、od I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 64 mm support span) 3.5.5 Shear Modulus at 23 C 594 - 990 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 l
9、ength 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 to +150 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 5. 3.5.6 Impa
10、ct Strength, Izod, min (ISO 180, Method A/ASTM D 256, Method A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 4.0 kJ/m23.5.6.2 At -40 +/- 2 C 1.6 kJ/m23.5.6.3 At -18 +/- 2 C 1.9 kJ/m2The test specimens must be conditioned for minimum of 6 h at the above specifi
11、ed temperature prior to impact test. Low temperature testing shall be done within the cold box, if not possible, test can be conducted outside, but within 5 s. 3.5.7 Heat Deflection Temperature, min (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen) 3.5.7.1 At 1.82 MPa 54 C 3.5.7.2 At 0.45 MPa
12、97 C 3.5.8 Heat Aging Performance (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 140 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination.) ENGINEERING MATERIAL SPECIFICATIONWSB-M4D825-A Printed copies are uncontrolled Copyright 2010, Ford Gl
13、obal Technologies, LLC Page 3 of 5 3.5.8.1 Tensile Strength Change +/- 25% (Test Method per para 3.5.3) 3.5.8.2 Impact Strength, Izod Change, max +/- 25% (Test Method per para 3.5.6.1, specimens to be notched before heat aging) 3.6 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen si
14、ze required for material approval is 355 x 100 x 2.0 +/- 0.1 mm with a smooth surface. 3.7 WEATHERING RESISTANCE After exposure in accordance with 3.7.1 and 3.7.2 the material shall no fading or color change in excess of specified AATCC rating (AATCC Gray Scale for Evaluating Change in Color, 10 ste
15、p). 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 with mild detergents water (ratio 5:95 by volume), or equivalent, after the Florida exposure. All initial appro
16、vals will be based on the preliminary Weatherometer exposure, pending Florida exposure results for final approval. 3.7.1 Xenon Arc Weatherometer Rating 4 - 5 (SAE J1885, 1240 kJ/m2exposure minimum, specimen size: 150 x 100 mm minimum, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 3.7.2 12 mo
17、nths Florida Rating 4 - 5 (FLTM BI 160-01, 5 south, under glass, specimen size: 150 x 100 mm, minimum, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 3.8 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h and 16 h) Fog Number, min 85 Formation of clear fi
18、lm, droplets or crystals is cause for rejection. ENGINEERING MATERIAL SPECIFICATIONWSB-M4D825-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 5 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the req
19、uirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION (ASTM D 696) 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 1.4% ENGINEERING MATERIAL SPECIFICATIONWSB-M4D825-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 5 of 5
