1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2007 09 14 Activated Y. Bankowski Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 1 of 4 THERMOPLASTIC POLYURETHANE ELASTOMER (TPU) MOLDING WSS-M2D197-A3 COMPOUND, INTERIOR, MIC, 90 DUROMETER A HARDNESS 1. SC
2、OPE The material defined by this specification is a thermoplastic polyurethane molding compound based on an aromatic polyester for mold in color black applications colored at the press. 2. APPLICATION This specification was released originally for material used for the 2009 MKS interior console tamb
3、our door application as an overmold for PC/ABS. 2.1 LIMITATIONS This is only for color-matched black applications (JA6A). Normally aromatic TPU substrates are top-coated, but black applications do not necessarily need topcoating. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Mat
4、erial suppliers and part producers must conform to the 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 using latest ISO test methods. 3.1.2 This specif
5、ication was developed using virgin material properties. The use of regrind is permitted, for economic / environmental reasons, with compliance as indicated in WSS-M99P1111-A. 3.1.3 Critical Process Parameters At the request of Ford Materials Engineering the supplier shall be responsible to collect c
6、ritical process control data on each lot of material produced. Testing required will be jointly developed between Ford Materials Engineering and the supplier based on CP and PFMEA review at the time of initial approval. Annually the supplier will review the in process data with Ford Materials Engine
7、ering to show that the process has remained under control. The data needs to be submitted in January for the previous calendar year. Data showing poor quality control measures or lack of submitted data may result in deletion from the Ford Approved Source List. 3.2 MOLDED TEST SPECIMEN 3.2.1 Density
8、1.19 - 1.21 g/cm3(ISO 1183, Method A) 3.2.2 Hardness, Durometer A 87- 91 (ISO 868, 15 s dwell) ENGINEERING MATERIAL SPECIFICATIONWSS-M2D197-A3 Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 2 of 4 (s) 3.2.3 Tensile Strength at Break, min 25 MPa (ISO 37, Type I, te
9、st speed: 500 mm/minute) (s) 3.2.3.1 Elongation at break, min 450% (Test Method according to para 3.2.3) (s) 3.2.3.2 Tensile Modulus at 100% Elongation, min 5.5 MPa (Test Method according to para 3.2.3) (s) 3.2.4 Tear Strength, min 95 kN/m (ISO 34, Method B, procedure A) (s) 3.2.5 Vicat Softening Te
10、mperature, min 105 C (ISO 306, 10N, 50 C/h) 3.2.6 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 100 +/- 2 C. After heat aging test specimens are to be conditioned in a desiccator for 3 - 5 h at 23 +/- 2 C. Unaged property values shall be determined at the time of the ag
11、ed properties determination) 3.2.6.1 Tensile Strength at Break, Change +/- 25% (Test method per para 3.2.3) 3.2.6.2 Elongation at Break, Change +/- 25% (Test method per para 3.2.3) 3.2.6.3 Modulus at 100% Elongation, Change +/- 25% (Test method per para 3.2.3) 3.2.6.4 Hardness, Durometer A, pts Chan
12、ge +/- 5 (Test method per para 3.2.2) 3.3 ODOR, max (FLTM BO 131-01) Rating 2 or (SAE J1351) Rating 3 3.4 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h and 16 h) Fog Number, min 90 Formation of clear film, droplets or crystals is cause for rejection. 3.5 FL
13、AMMABILITY (ISO 3795/SAE J369) 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. ENGINEERING MATERIAL SPECIFICATIONWSS-M2D197-A3 Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 3 of 4
14、3.6 WEATHERING RESISTANCE After exposure in accordance with 3.6.1, 3.6.2 and 3.6.3 the material shall show no fading or color change in excess of specified Gray Scale rating (AATCC Evaluation Procedure 1/ ISO 105-A02). In addition, there shall be no cracking, crazing or other deterioration. A slight
15、 loss of gloss or chalking will be allowed provided an acceptance appearance can be achieved by washing with mild detergents and water (ratio 5:95 by volume), or equivalent, after the Florida exposure. All initial approvals will be based on the preliminary Weatherometer exposure, pending Florida exp
16、osure results for final approval Not required for North America. 3.6.1 Xenon Arc Weatherometer - Rating 4 Required Worldwide except North America (SAE J2412, 1504 kJ/m exposure minimum, specimen size: 150 x 100 mm minimum, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 3.6.2 Filtered Xenon Ar
17、c Weatherometer Rating 4 Required for North America (SAE J2412 modified (FLTM BO 116-01), 3609.6 kJ/m2 exposure min, specimen size: 150 x 100 mm min, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 3.6.3 12 months Florida Rating 4 Not required for North America (FLTM BI 160-01, 5 south, under
18、glass, specimen size: 150 x 100 mm, minimum, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 4.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 18.7-5mm/C
19、 (ISO 11359-2 TMA, temperature range -30 30 C) ENGINEERING MATERIAL SPECIFICATIONWSS-M2D197-A3 Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 4 of 4 4.2 MOLD SHRINKAGE (ISO 294-3 and 294-4, 60 x 60 x 2.0 +/- 0.1 mm injection molded specimen B) 4.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C Flow: 1.9% Cross Flow: 1.4% 4.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C Flow: 2.2% Cross Flow: 1.5% . After 30 minutes at 120 C Flow: 2.0% Cross Flow: 1.5% 4.3 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES (ISO 1043) TPU
