1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2007 02 08 Activated M. Quirolo, Y. Bankowski Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 1 of 5 THERMOPLASTIC ELASTOMER, OLEFINICS (TEO), EPDM MODIFIED WSS-M2D510-A4 INTERIOR APPLICATIONS WSS-M2D510-A5 W
2、SS-M2D510-A6 WSS-M2D510-A7 WSS-M2D510-A8 WSS-M2D510-A9 1. SCOPE These specifications define the requirements for thermoplastic elastomer olefinics EPDM modified with a durometer hardness of less than 95, Type A. These materials are used primarily for visible automotive interior passenger and storage
3、 compartments applications. Note: The materials within this series of specifications are distinguished by application and durometer hardness (see table in paragraph 3.2.3). 2. APPLICATION These specifications were originally released to initially qualify color-keyed passenger compartment materials u
4、sed in non-structured trims, boots, gimps, gap-hiders, and similar interior components. These materials are not recommended for applications where oils, lubricants, solvents, or similar hydrocarbons are encountered, temperatures greater than 100C, nor for high compression applications under constant
5、 load because of creep deformation behavior. 3. REQUIREMENTS The requirements defined in these specifications represent the minimum acceptance criteria for material performance prior to their manufacture into finished articles. Exceptions to these requirements are to be documented in the Ford Motor
6、Company Approved Source List (ASL) upon approval. Approval to this specification is dependent upon the verification of impending actual part or component approval based on performance in-vehicle as described in a “Functional Report.“ This report form may be obtained from Ford Materials Engineering a
7、t the authorization of the appropriate design and release activity. Component/assembly must be evaluated according to specification WSS-M15P4-E, “Interior Trim, Assembly Performance“, and according to applicable SDS, DVM or system requirement documents. 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATER
8、IALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). Final compliance to the function and design requirements for specific applications must include the key life test requirements, or vehicle program requirements. EN
9、GINEERING MATERIAL SPECIFICATIONWSS-M2D510-A4/A9 Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 2 of 5 3.2 ADDITIONAL REQUIREMENTS The following requirements shall be assessed on laboratory-prepared test specimens or commercially produced injection molded or extru
10、ded materials. Laboratory-prepared materials shall be produced by equivalent process parameters and formulations as the finished article. No discoloration, mottling, bloom, mold release or other surface condition detrimental to part functioning or appearance is permitted following molding and/or ext
11、rusion. The following evaluations may be performed on injection molded or extruded materials specifically intended for laboratory evaluation. Material colors tested are to be agreed upon between the supplier(s) seeking approval and Ford Materials Engineering. A minimum of one lot of material shall b
12、e natural and one lot shall be black pigmented. Natural shall be included as part of the weathering evaluation. All lot data identification shall be retained and evaluated as part of the approval process. The following tests are to be performed on materials having surfaces identical to that of the f
13、inished article (i.e., grained, textured, colored, etc.) 3.2.2 Interior Applications Only The following tests are to be performed on materials having surfaces identical to that of the finished article (i.e., grained, texture, colored, etc.). 3.2.2.1 Fogging (SAE J1756, 3 h at 100 C heating, 21C Cool
14、ing Plate, post test conditioning 1 h and 16 h) Fog Number, min 70 Formation of clear film, droplets or crystals is cause for rejection. 3.2.2.2 Odor Rating 2 (FLTM BO 131-01), max 3.2.2.3 Flammability 100 mm/minute (ISO 3795/SAE J369) Burn Rate, Max 3.2.2.4 Low Temperature Brittleness No Cracking (
15、ISO 812, Type B Specimen/ ASTM D 2187, Method A), at -30 C 3.2.2.5 Colorfastness to Burnt Gas Rating 4 168 hours at 60 C (ISO 105-A01/AATCC Procedure 1), min ENGINEERING MATERIAL SPECIFICATIONWSS-M2D510-A4/A9 Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 3 of 5 3
16、.2.2.6 Fade Resistance 3.2.2.6.1 Accelerated Xenon Weathering, min Rating 4 (FLTM BO 116-01, Filtered Xenon 2406.4 kJ/m2, ISO 105-A01/ AATCC Procedure 1) Note: Initial approvals may be granted on the preliminary Weatherometer exposure test described above pending final approval results from Florida
17、exposure. 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 by volume), or equivalent, after the Florida exposure only. 3.2.2.6.2 Florida Weathering under Glass, min Rating 4 (FLTM BI 160-01, und
18、er glass, 5 South direct, backed, 12 months, AATCC evaluation procedure 1) 3.2.2.7 Soiling and Cleanability of Interior Trim, max Rating 3 (FLTM BN 112-08, ISO 105-A02/ AATCC Evaluation Procedure 1) 3.2.2.8 Cleaning Agent Resistance Rating 4 (FLTM BN 107-01, 10 Cycles, AATCC Evaluation Procedure 2),
19、 max Procedure: Saturate white cotton cloth with cleaning agents listed below and evaluate by AATCC, Procedure 2. There shall be no objectionable softening or change in appearance of the surface following gentle wiping and drying. Dry Deionized Water Window Cleaner All Purpose Cleaner Isopropyl Alco
20、hol/Water, 50:50 by volume ENGINEERING MATERIAL SPECIFICATIONWSS-M2D510-A4/A9 Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 4 of 5 3.2.3 Control Items Control items must be run on every lot of material. Control of these items must be represented in the FMEA and P
21、ROCESS CONTROL PLAN. Specification suffix identification based on durometer hardness, Type A, 15 sec delay; Mechanical properties listed are nominal values for material selection and design guide purpose. For properties of specific grades from the approved source list, contact Materials Engineering.
22、 Lot certification must meet Materials Engineering STATISTICAL DATA AND TEST SAMPLING PLAN requirements (4.1). Suffix A4 A5 A6 A7 A8 A9 3.2.3.1 Hardness (4.1.2) +5/-4 40 55 65 75 80 90 3.2.3.2 Tensile strength (MPa) (Perpendicular to flow, 4.1.3) 3.5 3.8 4.6 5.0 7.2 8.4 3.2.3.3 Tensile Modulus 100%
23、elongation (MPa) (Perpendicular to flow, 4.1.4) 0.9 1.5 2.0 2.6 3.5 5.6 3.2.3.4 Tear Strength (Cross direction, unnicked, 4.1.6) (kN/m) 12 17 22 30 40 52 4. MATERIAL REQUIREMENTS 4.1 BASIC MECHANICAL PROPERTIES The following test values for each material approved will be documented and retained at F
24、ord Motor Company Materials Engineering. In cases where statistically significant extrusion or molding (anisotropic) orientation is evident in Tensile Strength, Elongation and Tear testing, both directions, with and against this orientation shall be evaluated and reported separately. Data shall be p
25、resented listing nominal values and standard deviation. All tests performed and lot certification must comply with Materials Engineering, STATISTICAL AND TEST SAMPLING PLAN requirements. Specific test and sampling frequency to demonstrate continued compliance to the specification shall be agreed upo
26、n between the supplier and Materials Engineering and shall be reflected in the supplier PROCESS CONTROL PLAN. 4.1.2 Density (ISO 1183, Method A), range14.1.2 Hardness, Shore A, 15 s delay (ISO 868/ASTM D 2240), points, range1 4.1.3 Tensile Strength, MPa (ISO 527, Type 2 Specimen at 500 mm/min), Medi
27、an and +/- 3 sigma1ENGINEERING MATERIAL SPECIFICATIONWSS-M2D510-A4/A9 Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 5 of 5 4.1.4 Tensile Modulus at 100 % Elongation (per 4.1.3), MPa Median and +/- 3 sigma14.1.5 Ultimate Elongation (per 4.1.3), % Median and +/- 3
28、sigma 4.1.6 Tear Strength, kN/m width (ISO 34, Method B, Procedure A)1, Median and +/- 3 sigma 4.1.7 Change in Properties (Tensile, Elongation,+/- 25% Hardness) from Original, after Heat Aging2No objectionable color (ISO 188, except 150 +/- air changes/h, change or tackiness 1000 h 100 +/- 2 C) Medi
29、an 4.1.8 Coefficient of Linear Thermal Expansion, -30 to 100 C ASTM D 696 (flow and Perpendicular to flow directions) Notes: 1 indicates batch lot certification requested as part of process control and as indicated in control plan. 2indicates annual re-certification, per agreement with Materials Engineering as indicated in applicable Control Plans. All other paragraphs required for initial qualification. 4.2 RECYCLING CODE (Per ISO 1043)
