1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 0 2014 04 22 Released T.Nover, M.Corley, EU Controlled document at www.MATS Copyright 2014, Ford Global Technologies, LLC Page 1 of 4 THERMOPLASTIC ELASTOMER (TPS), STYRENE BLOCK COPOLYMER, WSS-M2D516-A1 40 DUROMETER, UNDERHOOD THERMOPLA
2、STIC ELASTOMER (TPS), STYRENE BLOCK COPOLYMER, WSS-M2D516-A5 80 DUROMETER, UNDERHOOD 1 SCOPE The material defined by this specification is a thermoplastic elastomer based on styrene block copolymer. 2 APPLICATION These specifications were released originally for material used for underhood applicati
3、ons. 3 REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements for Production Materials (WSS-M99P1111-A). 3.1.1 This specification is based on virgin materials, however materials with recycled content as
4、 defined by WRS-M99P42-A1 (post-consumer and/or postindustrial recyclates and repolymerised recycled materials) should be used whenever technically feasible and following all materials and PV testing required by Ford Materials Engineering. 3.1.2 The use of regrind is permitted, for economic / enviro
5、nmental reasons, with compliance as indicated in Ford Engineering CAD and Drafting Standard E-4. 3.1.3 Performance Criteria: Parts using this specification shall meet the appropriate performance specifications, WSS-M15P50-B/Latest or as otherwise designated. 3.2 MATERIAL PROPERTIES 3.2.1 Density 0.8
6、5 - 1.2 g/cm3 (ISO 1183-1, Method A) 3.2.2 Hardness, Shore A A1 A5 (ISO 868, 6 mm piled-up specimen, 40+/- 5 80 +/- 5 15 seconds dwell) 3.2.3 Tensile Strength at Break (ISO 37, Type 2 specimen, 75.0 x 4.0 x 2.0 +/- 0.2 mm 500 mm/minute test speed) 3.2.3.1 Parallel to Flow, min MPa A1 A5 2.0 5.0 ENGI
7、NEERING MATERIAL SPECIFICATION WSS-M2D516-A1/A5 Copyright 2014 Ford Global Technologies, LLC Page 2 of 4 3.2.3.2 Perpendicular to flow, min MPa A1 A5 2.5 5.5 3.2.4 Elongation at Break (ISO 37, Type 2 Specimen at 500 mm/min) 3.2.4.1 Parallel to Flow, min % A1 A5 300 400 3.2.4.2 Perpendicular to flow,
8、 min % A1 A5 350 550 3.2.5 Tensile Modulus at 100 % Elongation (ISO 37, Type 2 Specimen at 500 mm/min) 3.2.5.1 Parallel to Flow, min MPa A1 A5 0.5 2.0 3.2.5.2 Perpendicular to flow, min MPa A1 A5 0.5 2.5 3.2.6 Tear Strength (unnotched tear) (ISO 34-1, Method B, Procedure A/ ASTM D 624, Die C) 3.2.6.
9、1 Parallel to Flow, min kN/m A1 A5 8.0 25 3.2.6.2 Perpendicular to flow, min kN/m A1 A5 10 27 3.2.7 Low Temperature Brittleness No Cracking (ISO 812, Type B Specimen/ ASTM D 2187, Method A), at -40 C 3.2.8 Ozone Resistance 0 Rating (FLTM BP 101-01, Procedure A, tensile specimen, 20% Elongation) 3.2.
10、9 Compression Set (ISO 815, Type B / ASTM D 395, Method B Type 1) 3.2.9.1 72 h at 23 +/- 1 C, min % A1 A5 25 40 3.2.9.2 22 h at 70 +/- 1C, min % A1 A5 40 55 3.2.9.3 22 h at 100 +/- 1C 70 % 3.2.9.4 1000 h at 70 +/- 1C Report 3.2.9.5 1000 h at 100 +/- 1C Report ENGINEERING MATERIAL SPECIFICATION WSS-M
11、2D516-A1/A5 Copyright 2014 Ford Global Technologies, LLC Page 3 of 4 3.2.9.6 1000 h at 120 +/- 1C Report 3.2.9.7 22 h at 120 +/- 1C Report 3.2.10 Heat Aging (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 125C +/- 2C) 3.2.10.1 Hardness Change A1 A5 (Test Method per para 3.3.2) +/- 8 +/- 5 3.2.1
12、0.2 Tensile Strength Change +/- 25 % (Test Method per para 3.3.3) 3.2.10.3 Elongation Change +/- 25 % (Test Method per para 3.3.4) 3.2.10.4 Brittleness or Bend Test No Cracks (Test Method per para 3.3.7) 3.2.11 Coefficent of Linear Thermal Expansion, m/m C x 1-5 (ISO 11359-2) Flow Direction (Machine
13、 Direction) Report Transverse to Flow (Cross Machine) Report 3.2.12 Flammability (ISO 3795/SAE J369, Specimen B, smooth surface) Burn Rate 100 mm/minute max The specimen size required for material approval is 355 x 100 x 2.0 +/- 0.1 mm (use specimen B) with a smooth surface. 3.3 SUPPLEMENTAL INFORMA
14、TION The following curves are to be submitted with the data packages: FTIR (picture and file (formats: spa ; jdx ; ird ; nic ; spc ; irs ; gaml ; matson) TGA (up to 900C) DSC (-60 to 250C, 10K/min) CLTE (-30C to 100C, ISO 11359-2) Engineering Stress/Strain at 23 C 4 GENERAL INFORMATION The informati
15、on given below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. 4.1 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES TPS (ISO 18064) ENGINEERING MATERIAL SPECIFICATION WSS-M2D516-A1/A5
16、 Copyright 2014 Ford Global Technologies, LLC Page 4 of 4 Table 1: Minimum Sample Size Initial Approval New Manufacturing Location for Previously Approved Material Para. Test Minimum Lots Specimens per Lot Total Test Specimens Lots Specimens per lot Total Test Specimens 3.1 WSS-M99P1111-A 3.2.1 Dens
17、ity 1 3 3 3.2.2 Hardness, Shore A 1 5 measurements 1 3.2.3 Tensile Strength at Break 3 5 15 1 5 5 3.2.4 Elongation at Break 3 5 15 1 5 5 3.2.5 Tensile Modulus 1 10 10 3.2.6 Tear Strength 3.2.6.1 Parallel to Flow 3 10 30 1 10 10 3.2.6.2 Perpendicular to Flow 3 10 30 1 10 10 3.2.7 Low Temperature Brit
18、tleness 1 3 3 3.2.8 Ozone Resistance 1 3 3 3.3.9 Compression Set 3 3 9 3.2.10 Heat Aging Performance 3.2.10.1 Tensile Strength at Yield Change 1 5 5 3.2.10.2 Elongation Change 1 5 5 3.2.10.3 Hardness Change 1 5 1 3.2.11 Coefficent of Linear Thermal Expansion 1 3 3 3.2.12 Flammability 1 5 5 3.3 Curves - IR - TGA - DSC - CLTE - Stress/Strain Curves 1 1 1 per test Table 2: Minimum Color Property Testing Para. Test Lots Specimens per Lot Total Test Specimens Color Test Direction 3.2.3 Tensile Strength at Breaik 1 5 5 As directed by Materials Engineering 3.2.11 Flammability 1 5 5 Every color
