1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 01 25 N-STATUS No replacement named J. Crist, NA 2006 05 24 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.6, 3.10 & 4 1993 11 02 Released EP00E10258829000 L. Rodigas Printed copies are uncontrolled Copyright 2010, Ford Global Technologie
2、s, LLC Page 1 of 5 POLYCARBONATE + POLYETHYLENE TEREPHTHALATE BLEND WSK-M4D879-A (PC+PET), MODIFIED MOLDING COMPOUND, INTERIOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a high impact strength molding compound based on polycarbonate + polyethylene terephthal
3、ate blend for interior use. 2. APPLICATION This specification was released originally for material used for console lid base-plate of Scorpio. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements F
4、or 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) 3.4.1 Melt Flow Rate 3 - 6 g/10 minutes (ISO 1133, 300 C, 1.2 kg) The material shall be dried for min of 2 h a
5、t 120 - 125 C in a mechanical convection oven immediately preceding the test. 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 1
6、0 x 4.0 +/- 0.2 mm (Tensile Bar, ISO 3167) B. 120 x 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 1.20 - 1.24 g/cm (ISO 1183, Method
7、 A) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D879-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 5 (s) 3.5.3 Tensile Strength at Max Load, min 50 MPa (ISO R 527, 150 x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/minute test speed) 3.5.3.1 Elongation at Max Load, min
8、50% (Test Method according to para 3.5.3) (s) 3.5.4 Flexural Modulus, min 1.8 GPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/min test speed, 64 mm support span) 3.5.5 Shear Modulus at 23 C 0.58 - 1.0 GPa (ASTM D 4065, forced constant amplitude, fixed frequency of 1 Hz +/- 15%, strain level be
9、low 1%. Specimen approx. 60 x 10 x 4.0 +/- 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 minimum) Additionally, a Shear Modulus versus Temperature curve shall be plotted for -50 to +150 C temperature range, at 5
10、C minimum intervals. The plotted curve must be within tolerance range shown on page 5. (s) 3.5.6 Impact Strength, Izod, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 35 kJ/m 3.5.6.2 At -40 +/- 2 C 10 kJ/m 3.5.6.3 At -20 +/- 2 C 14 kJ/m The test
11、 specimens must be conditioned for minimum of 6 h at the above specified temperature prior to impact test. Low temperature testing shall be done within the cold box. (s) 3.5.7 Heat Deflection Temperature, min (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, 0.32 +/- 0.01 mm deflection) 3.5.7.1 At 1.80 M
12、Pa 95 C 3.5.7.2 At 0.45 MPa 115 C All specimens dry as molded. If not tested immediately after molding, specimens must be stored in a sealed, moisture-proof container filled with silica gel. ENGINEERING MATERIAL SPECIFICATIONWSK-M4D879-APrinted copies are uncontrolled Copyright 2010, Ford Global Tec
13、hnologies, LLC Page 3 of 5 (s) 3.5.8 Vicat Softening Temperature, min 128 C (ISO 306, 10 x 10 x 4.0 +/- 0.2 mm specimens. Bath - silicone oil, temp. raise 50 +/- 5 C/h. Dial gage reset to O after addition of 5 kg weight. At 50 N load) All specimens dry as molded. If not tested immediately after mold
14、ing, specimens must be stored in a sealed, moisture-proof container filled with silica gel. 3.5.9 Heat Aging Performance (ISO 188, except 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) 3.5.9.1 Tensile Stre
15、ngth at max Load Change +/- 25% (Test Method per para 3.5.3) 3.5.9.2 Impact Strength, Izod Change +/- 25% (Test Method per para 3.5.6.1, specimens to be notched before heat aging) 3.6 FOGGING (FLTM BO 116-03, 3 h at 100 C) Fog Number, min 90 Formation of clear film or droplets is cause for rejection
16、. 3.7 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. 3.8 WEATHERING RESISTANCE After exposure in accordance with 3.8.1 and 3.8.2 the material shall show no fading or color change in excess of
17、specified Gray Scale rating (AATCC Evaluation Procedure 1/ISO 105-A02). 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 and water (ratio 5:95
18、by volume), or equivalent, after the Florida exposure. All initial approvals will be based on the preliminary Weatherometer exposure, pending Florida exposure results for final approval. ENGINEERING MATERIAL SPECIFICATIONWSK-M4D879-APrinted copies are uncontrolled Copyright 2010, Ford Global Technol
19、ogies, LLC Page 4 of 5 3.8.1 Xenon Arc Weatherometer Rating 4 (SAE J1885, 400 kJ/m exposure minimum, specimen size: 150 x 100 mm minimum, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 3.8.2 12 months Florida Rating 4 (FLTM BI 160-01, 5 south, under glass, specimen size: 150 x 100 mm, minimum
20、, 3.2 +/- 0.2 mm thick, molded in smooth polished 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 6 7-5/ C (ASTM E 228 or TMA, temperature range -40 to
21、 +40 C) 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 0.3 - 0.5% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0.1% . After 30 minutes at 120 C 0.1% 5.3 MELT VOLUM
22、E RATE 4 - 8 cm/ (ISO 1133, 265 C, 1.2 kg) 10 minutes The material shall be dried for min of 4 h at 120 - 125 C in a mechanical convection oven immediately preceding the test. 5.4 RECYCLING CODE PC+PET ENGINEERING MATERIAL SPECIFICATIONWSK-M4D879-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 5 of 5
