1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 10 13 N-STATUS Replaced by WSS-M4D638-B; Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.9, 3.10 & 4 R. Lord 1993 08 02 Revised & Updated NB00E10043064111 BCF, L.A. Graham 1985 11 11 Released CAP1-DR526135 E.P. Francis, Jr. Printed copies are unc
2、ontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 3 POLYPROPYLENE (PP) COPOLYMER, MEDIUM IMPACT, ESB-M4D500-A COLOR PIGMENTED, LOW GLOSS, INTERIOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a molded-in-color low gloss, medium impact polypropy
3、lene copolymer that has been UV stabilized for unpainted interior applications. 2. APPLICATION This specification was released originally for material used to mold unpainted interior trim parts that are capable of meeting low gloss styling requirements. 3. REQUIREMENTS Material specification require
4、ments are to be used for initial qualification of materials. 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 COMPOUND 3.4.1 Melt Flow Rate See Approved S
5、ource listing (ASTM D 1238, 230 C, 2.16 kg) 3.4.2 Melting Point, min 155 C (FLTM BO 021-02) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens All test specimens shall be injection molded in accordance with ASTM D 1897. The values of this specification are based on pigmented injection mold
6、ed specimens unless otherwise specified. 3.5.2 Specific Gravity 0.88 - 0.95 (ASTM D 792) ENGINEERING MATERIAL SPECIFICATION ESB-M4D500-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 3 3.5.3 Tensile Strength at Yield, min 20 MPa (ASTM D 638, Type I specimen,
7、 3.2 mm thickness, 50 mm/minute) 3.5.3.1 Elongation at Yield, min 6% 3.5.4 Flexural Modulus, min 950 MPa (ASTM D 790, Method I, Procedure A, 3.2 x 12.7 x 127 mm specimen, 5 mm/minute test speed) 3.5.5 Impact Strength, Izod, min 105 J/m (ASTM D 256, 3.2 x 12.7 x 63.5 mm specimen, minimum of 10 specim
8、ens) 3.5.6 Heat Deflection Temperature, min (ASTM D 648, 3.2 x 12.7 x 127 mm specimens) 3.5.6.1 At 1.80 MPa 45 C 3.5.6.2 At 0.45 MPa 80 C 3.5.7 Heat Aging Performance (ASTM D 3045, 1000 h at 120 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5
9、7.1 Tensile Strength, Yield Change +/- 25% (Test Method per para 3.5.3) 3.5.7.2 Impact Strength, Izod Change +/- 25% (Test Method per para 3.5.5) 3.5.8 Impact Strength, Falling Dart . At 23 +/- 2 C 90% pass at 34 J . At -29 +/- 2 C 90% pass at 5.4 J Test Method: A Gardner impact tester model 1G-112
10、0 shall be used except that the tester shall be modified so that the impact head (12.7 mm diameter) and base (51 mm diameter) shall conform to FLTM BO 117-02. A 1.8144/3.6288 kg weight shall be used. Test specimens shall be 3.2 x 100 x 100 mm min size. Specimens shall be conditioned at the specified
11、 temperature for 24 h min. Samples must be impacted within 5 s after removal from the cold chamber. Any specimen that exhibits a punch thru or ductile tear within the 12.7 mm impact area shall be defined as a pass. Any specimen that exhibits a brittle or shatter type crack beyond the 12.7 mm impact
12、area shall be defined as a failure. A minimum of 20 samples for each temperature is required. 3.6 FLAMMABILITY Burn Rate, max 100 mm/minute (FLTM BN 024-02, without the lot sampling plan) In addition, the test specimen shall not exhibit any flashing or sudden flaming on either surface in excess of t
13、he above max value. ENGINEERING MATERIAL SPECIFICATION ESB-M4D500-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 3 3.7 FOGGING (SAE J1756) Fog Number, min 85 Formation of clear film or droplets is cause for rejection. 3.8 WEATHERING RESISTANCE After exposur
14、e in accordance with 3.8.1 and 3.8.2, the material shall show no fading or color change in excess of the specified AATCC rating (AATCC Evaluation Procedure 1). In addition, there shall be no cracking, crazing, or any other surface deterioration. The specimens may be washed with mild detergents and w
15、ater (ratio 5:95) after the Florida exposure prior to evaluation for color change. A slight loss of gloss is permitted. Prior to testing, the colors shall be approved for color match by the Design Center Color Laboratory. Note: All initial approvals will be based on the preliminary weatherometer exp
16、osure, pending Florida exposure results for final approval. 3.8.1 Xenon Arc Weatherometer Rating 4 - 5 (SAE J1885, 1240 kJ/m2 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 Exposure Rating 4 - 5 (FLTM BI 160-01, 5
17、south, under glass, specimen size: 150 x 100 mm, minimum, 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 MOLD SHRINKAGE 0.1 - 0.2% (ASTM D 955, after 48 h, injection molded sample) 5.2 COEFFICIENT OF LINEAR THERMAL EXPANSION 9-5/C (ASTM D 696, - 30 C to + 30 C) 5.3 HARDNESS, DUROMETER D 55 (ASTM D 2240, instantaneous reading) 5.4 RECYCLING CODE PP
