1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 07 25 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 2002 01 14 Activated J. Burke Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 4 POLYPROPYLENE (PP), 40% GLASS FIBER REINFORCED, WSS-M4
2、D982-A COLOR PIGMENTED, UV STABILIZED, EXTERIOR 1. SCOPE The material defined by this specification is a 40% glass fiber reinforced, high impact rigid polypropylene (PP) molding compound. This material is UV stabilized and color pigmented for exterior use. 2. APPLICATION This specification was relea
3、sed originally for material used for exterior molded in color truck running boards. 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 MOLDING COMPO
4、UND 3.4.1 Glass Fiber Content 35 - 45% (ISO 3451-1, Method A, 5h 500 C) 3.5 MOLDED TEST SPECIMEN 3.5.1 Specific Gravity 1.15 1.3 (ASTM D 792, Method A) 3.5.2 Tensile Strength at Yield, min 50 MPa (ISO 527-1 and ISO 527-2, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 5mm/minute test speed) 3.5.3 Flexural
5、Modulus, min 5.5 GPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/minute test speed, 64 mm support span) 3.5.4 Shear Modulus at 23 C 1000 - 1600 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 c
6、ut from the center of specimen A. Specimen length between clamps 35 - 40 mm. Soak time at each temperature interval - 3 minutes min) Additionally, a shear modulus vs. temperature curve shall be plotted for -50 C to +150 C temperature range, at 5 C min intervals. The plotted curve must be within tole
7、rance range granted on the original material approval and it shall constitute the reference standard for materials supplied to this specification and shall be kept on file at the designated material laboratory and be available on request. ENGINEERING MATERIAL SPECIFICATIONWSS-M4D982-A Printed copies
8、 are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 4 3.5.5 Impact Strength, Izod, min (ISO 180, 80 x 10 x 4.0 +/- 0.2 mm specimen use center section of specimen A, 10 specimens for each test) 3.5.5.1 At 23 C +/- 2 C 40 J/m23.5.5.2 At -40 C +/- 1 C 55 J/m2The test specimen must
9、 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 chamber, if not possible, test may be conducted outside, but within 5 s. 3.5.6 Heat Deflection Temperature, min 150 C (ISO 75-1, 80 x 10 x 4.0 +/- 0.2 mm spec
10、imen use center section of specimen A, flatwise, 0.34 +/- 0.1mm deflection. At 1.80 MPa) 3.5.7 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 140 C +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.7.1 Tensile Stren
11、gth at +/- 25% Yield Change (Test Method per para 3.5.2) 3.5.7.2 Impact Strength, Izod Change (Test Method per para 3.5.5, specimens to be notched before heat aging) 3.5.7.2.1 At 23 C +/- 2 C +/- 25% 3.5.7.2.2 At -40 C +/- 1 C +/- 25% 3.6 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute
12、 The specimen size required for material approval is 355 x 100 x 1.0 +/- 0.1 mm with a smooth surface. 3.7 WEATHERING RESISTANCE After exposure in accordance with para 3.7.1, 3.7.2, and 3.7.3, the material shall show no color change in excess of specified Gray Scale rating (AATCC Evaluation Procedur
13、e 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 and/or polishing with Ford car polish (auto wax) after the outdoor exposure, at permission of the
14、 affected Product Development Materials Activity. ENGINEERING MATERIAL SPECIFICATIONWSS-M4D982-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 4 All initial approvals will be based on the preliminary Weatherometer exposure, pending Florida and Arizona exposu
15、re results for final approval. 3.7.1 Xenon Arc Weatherometer Rating 4 - 5 (SAE J1960, 2500 kJ/m2exposure min, specimen size: 150 x 100 mm min, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 3.7.2 12 months Florida Rating 4 - 5 12 months Arizona (SAE J1976, 5 south, direct weathering inland, s
16、pecimen size: 150 x 100 mm, min, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 3.7.3 24 months Florida Rating 4 24 months Arizona (SAE J1976, 5 south, direct weathering inland, specimen size: 150 x 100 mm, min, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 5. GENERAL INFORMATION The
17、information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 1.47 3.14/-5C (ASTM D 831 or TMA, temperature range -30 C to 30 C) 5.2 MOLD SHRINKAGE (ISO 2577, approximately 150 x 100 x 3.2 mm +/- 0.
18、2 mm injection molded specimen) 5.2.1 Molding Shrinkage . After 48 h at 23 C +/- 2 C 0.0035 in/in 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 30 minutes at 120 C +/- 2 C 0.0080 in/in 5.3 HEAT DEFLECTION TEMPERATURE 159 C (ISO 75-1 and ISO 75-2, 80 x 10 x 4.0 +/- 0.2 mm specimen use center section of specimen A, flatwise, 0.34 +/- 0.1 mm deflection. At 0.45 MPa) 5.4 RECYCLING CODE PP-GF40 ENGINEERING MATERIAL SPECIFICATIONWSS-M4D982-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 4
