1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 09 10 N-STATUS Replaced by WSS-M4D1051-A1, WSS-M4D1052-A1, WSS-M4D1053-A1 WSS-M4D1053-A2 L. Soreide, NA 2006 01 25 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 1990 07 11 Released DE00E00107002060 J. B. Huebner Printed copies
2、 are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 1 of 2 POLYCARBONATE + THERMOPLASTIC COPOLYESTER WSF-M4D767-A BLEND (PC + PCTA) FILM, TRANSLUCENT NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a translucent polymer film, based on the blend o
3、f polycarbonate (PC) and thermoplastic copolyester derived from cyclohexanedimethanol and terephthalic acid (PCTA) printed and/or painted on face and/or reverse side. The film may have a pressure sensitive adhesive on the reverse side. 2. APPLICATION This specification was originally released for ma
4、terial used as buttons for Electronic Automatic Temperature Control (EATC). 3. REQUIREMENTS In addition to the requirements listed herein, assemblies using this material shall meet all the requirements of the appropriate assembly performance specification. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MA
5、TERIALS Material suppliers and part producer must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 APPEARANCE (FLTM BI 109-01) The color, pattern and finish shall match the approved Design Center master sample or shall be as specified on the engineering dr
6、awing. 3.5 TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise specified, all tests shall be conducted on die cut specimens. 3.5.2 Thickness 0.50 +/- 0.54 mm (ISO 4593/ASTM D 374, Method C) 3.5.3 Density 1.18 - 1.23 g/cm3(ISO 1183, Method A/ASTM D 792, Method A1) 3.5.4 Tensile Strengt
7、h at Break, min 50 MPa (ISO R 527, type 2/ASTM D 638M, type M-II, 100 mm/minute test speed) 3.5.4.1 Elongation at Break, min 90% (Test according to para 3.5.4) ENGINEERING MATERIAL SPECIFICATIONWSF-M4D767-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 2 3.5
8、.5 Tear Strength, min 120 kN/m (ISO 34, Method B, Procedure A/ASTM D 624, Die C, except 50 mm/minute test speed) 3.5.6 Flexibility at -30 C No cracks (FLTM BN 102-01, except 180 bend over 19 - 20 mm diameter mandrel) 3.5.7 Dimensional Stability Dimensional Change, max 0.5% Test Method: A specimen ap
9、prox. 300 x 300 mm in size shall be placed in a mechanical convection oven (150 +/- 50 air changes/h) maintained at 90 +/- 2 C for 3 h. Dimensional changes shall be measured after cooling down to room temperature. 3.5.8 Fogging (FLTM BO 116-03) Fog Number, min 60 Formation of excessive amounts of cl
10、ear film or droplets is cause for rejection. 3.5.9 Odor, max Rating 2 (FLTM BO 131-01/SAE J1351) 3.6 COATING AND ADHESION Refer to applicable performance specification 3.7 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 0.25 +/- 0.1 mm with a smooth surface.
