1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 03 25 Revised Revised 3.4.1 Melt Flow Rate (increase the range of values of Melt Flow Rate) M. Souza, SA 2006 07 20 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.9, 3.10 & 4 1999 06 22 Activated L. Rumao Printed copies are uncontrolled C
2、opyright 2010, Ford Global Technologies, LLC Page 1 of 5 POLYPROPYLENE (PP) HOMOPOLYMER, HEAT WSS-M4D939-A1 STABILIZED, 33% TALC FILLED, 25% MIN RECYCLED CONTENT MOLDING COMPOUND 1. SCOPE The material defined by this specification is a 33% talc filled injection molding compound based on 25% min recy
3、cled polypropylene homopolymer from post consumer sources. 2. APPLICATION This specification was released originally for material used for air-conditioning and heater housing. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the
4、 Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1.1 All requirements of this specification, identified by symbol (s), shall be met with data representing 3 sigma values. 3.4 MOLDING COMPOUND (s) 3.4.2 Talc Content 30 - 36% (ISO 3451/1, Method A, 30 minutes at 550 +/- 50
5、C, test portion 1 - 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 1
6、0 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 1.10 - 1.17 (ISO 1183, Method A/ASTM D 792) g/cm3ENGINEERING MATERIAL SPECIFICATIONWSS-
7、M4D939-A1 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 5 (s) 3.5.3 Tensile Strength at Max Load, min 27 MPa (ISO R 527/ASTM D 638M, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/minute test speed) (s) 3.5.4 Flexural Modulus, min 3.0 GPa (ISO 178/ASTM D 790M
8、, Mehtod 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 1000 Mpa (ASTM D 4065, forced constant amplitude, fixed frequency of 1 Hz +/- 15%, strain level below 1%. Specimen approximately 60 x 10 x 4.0 +/- 0.2 mm cut from the center of specimen A.) Ad
9、ditionally, a Shear Modulus vs. Temperature curve shall be plotted for -50 to +160 C temperature range, at 5 C min intervals. The plotted curve must be within +/- 20% of the standard shown on page 4. (s) 3.5.6 Impact Strength, Izod, min (ISO 180 Method A/ASTM D 256, Method A, 63.5 x 10 x 4.0 +/- 0.2
10、 mm specimen, 10 specimen for each test) 3.5.6.1 At 23 +/- 2 C 2.5 kJ/m23.5.6.2 At -40 +/- 2 C 1.8 kJ/m2The test specimens must be conditioned for min 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
11、be conducted outside, but within 5 s. (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 1.80 MPa 67 C 3.5.7.2 At 0.45 MPa 118 C 3.5.8 Heat Aging Performance (ISO 188/ASTM D 573, 1000 h at 140 +/- 2C. Unaged property values shall be determin
12、ed at the time of the aged properties determination) 3.5.8.1 Tensile Strength Change +/- 15% (Test Method per para 3.5.3) ENGINEERING MATERIAL SPECIFICATIONWSS-M4D939-A1 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 5 3.5.8.2 Impact Strength, Izod +/- 15% Ch
13、ange (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 size required for material approval is 355 x 100 x 1.0 +/- 0.1 mm with a smooth surface. 3.7 Fogging (SAE J1756, 3 h at 100 C heating, 21 C cooling pla
14、te, post test conditioning 1 h) Fog Number, min 90 Formation of clear film, droplets or crystals is cause for rejection. 3.8 Odor, max Rating 2 (SAE J1351/FLTM BO 131-01) 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of th
15、is specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 5 - 10-5/C (ASTM D 696) 5.2 MOLD SHRINKAGE (ISO 2577, approximately 150 x 100 x 4.0 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C 0.85% 5.2.2 Post Shrinkage (Separate specimens required for each
16、test) . After 48 h at 80 C 0.1 - 0.4% . After 30 minutes at 120 C 0.0 - 0.3% 5.3 ELONGATION AT BREAK, min 7.0% (Test Method according to para 3.5.3) 5.4 HARDNESS, DUROMETER D, min 63 (ISO 868/ASTM D 2240, 15 s dwell) ENGINEERING MATERIAL SPECIFICATIONWSS-M4D939-A1 Printed copies are uncontrolled Cop
17、yright 2010, Ford Global Technologies, LLC Page 4 of 5 5.5 RECYCLING CODE (SAE J 1344) PP-TD30 5.6 Melt Flow Rate reported value (ISO 1133/ASTM D 1238, 230 C, 2.16 kg) ENGINEERING MATERIAL SPECIFICATIONWSS-M4D939-A1 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 5 of 5
