1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 09 28 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.9, 3.10 & 4 1991 05 02 Released EPOOEO1089484000 L. Rodigas Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 5 POLYPROPYLENE (PP) SHEET, 50% WOOD
2、 FLOUR FILLED WSK-M98D25-A 1. SCOPE The material defined by this specification is an extruded 50% wood flour filled polypropylene sheet, which can be laminated with a suitable film. 2. APPLICATION This specification was released originally for material used for various interior trim applications suc
3、h as door trim panels. 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). 3.4 EXTRUDED SHEETS 3.4.1 Filler Content 42 - 50% (Wood flour and nonextractab
4、le residue) Test Method: FLTM AP 150-04 para 1 through 9 of procedure, except: use fritted glass filters solvent - 150 ml xylene duration of extraction - 24 h wash solvent for insoluble residue - 150 ml acetone drying period - 4 h at 100 +/- 2 C cooling period - 15 minutes in desicator Calculation:
5、% Nonextractables = Weight Residue x 100 /Weight Sample 3.4.2 Water Absorption, max 3% (ISO 62, Method 1, except result shall be expressed as percentage) 3.5 TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise specified all tests shall be carried out on test specimens machined from ex
6、truded sheets. ENGINEERING MATERIAL SPECIFICATION WSK-M98D25-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 5 The following dimensions are required: A. 150 min x 10 x 2.4 +/- 0.2 mm (Tensile Bar) B. 120 x 10 x 2.4 +/- 0.2 mm Specimens with shorter dimension
7、s shall be cut from the center portion of the test specimen A and/or B. The specimens shall be machined according to ISO 2818. No annealing allowed. 3.5.2 Density 1.04 - 1.12 g/cm3 (ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Tensile Strength at Max Load, min (ISO R 527/ASTM D 638, 150 min x 10
8、x 2.4 +/- 0.2 mm specimen, 5 mm/minute test speed) Extrusion Direction (ED) 18 MPa Across Extrusion Direction (AED) 12 MPa 3.5.4 Flexural Modulus, min (ISO 178/ASTM D 790, Method I, Procedure A, 60 x 10 x 2.4 +/- 0.2 mm specimen, 40 mm support span) ED 3.0 GPa AED 2.0 Gpa 3.5.5 Shear Modulus at 23 C
9、 (ED and AED) 0.94 - 1.6 GPa (ASTM D 4065, forced constant amplitude, fixed frequency of 1 Hz +/- 15%, strain level below 1%. Specimen approx. 60 x 10 x 2.4 +/- 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 minim
10、um). 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 Impact Strength, Izod, min (ISO 180, Method A/ASTM D 256, Method A, 80 x 10 x 2.4 +/- 0.2 m
11、m specimen, 10 specimens minimum) 3.5.6.1 At 23 +/- 2 C ED 2.5 kJ/m2 AED 2.0 kJ/m2 3.5.6.2 At -40 +/- 2 C ED 1.5 kJ/m2 AED 1.0 kJ/m2 ENGINEERING MATERIAL SPECIFICATION WSK-M98D25-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 5 The test specimens must be co
12、nditioned for minimum of 6 h at the above specified 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 2.4 +/- 0.2 mm specim
13、en. At 1.82 MPa) ED 100 C AED 81 C 3.5.8 Heat Aging Performance (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 100 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.8.1 Tensile Strength at Max Load Change (ED and AED) +/- 25% (Test Me
14、thod per para 3.5.3) 3.6 LAMINATED MATERIAL (When applicable) A suitable film may be laminated to one or both sides of the extruded sheet. 3.6.1 Adhesion The laminate shall not be separable by use of mechanical aids. 3.7 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required
15、 for material approval is 355 x 100 x 2.4 +/- 0.2 mm with a smooth surface. If a laminated sheet is present, the flammability shall be determined with the laminate included. 3.8 FOGGING (FLTM BO 116-03) Fog Number, min 70 Formation of excessive amounts of clear film or droplets is cause for rejectio
16、n. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. ENGINEERING MATERIAL SPECIFICATION WSK-M98D25-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 5 5.1 COEFFICI
17、ENT OF LINEAR THERMAL EXPANSION 3 8-5/ C (ASTM D 696) 5.2 MOLD SHRINKAGE (ISO 2577, approx. 150 x 100 x 2.4 +/- 0.2 mm extruded specimen) 5.2.1 Molding Shrinkage After 48 h at 23 +/- 2 C 1.0 - 2.0% (ED and AED) 5.2.2 Post Shrinkage (Separate specimens required for each test) After 48 h at 80 C 0.2 - 0.4% (ED and AED) After 30 minutes at 120 C 0.2 - 0.4% (ED and AED) 5.3 ODOR, max Rating 2 (FLTM BO 131-01/SAE J1351) ENGINEERING MATERIAL SPECIFICATION WSK-M98D25-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 5 of 5
