FORD WSS-M2D476-A2-2016 THERMOPLASTIC POLYOLEFIN ELASTOMER (TEO) 100% RECYCLED RUBBER MODIFIED TO BE USED WITH FORD WSS-M99P1111-A .pdf

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1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 02 2016 08 31 N Status No replacement or usage L. Sinclair, NA 2004 10 18 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8 & 4 1995 10 03 Activated J. Mitchell Copyright 2016, Ford Global Technologies, LLC Page 1 of 2 THERMOPLASTIC POLYOL

2、EFIN ELASTOMER (TEO), WSS-M2D476-A2 100% RECYCLED RUBBER MODIFIED, WSS-M2D476-A7 NOT TO BE USED FOR NEW DESIGN 1. SCOPE The materials defined by these specifications are thermoplastic polyolefin, modified with recycled rubber from used tires. 2. APPLICATION These specifications were released origina

3、lly for material used in the manufacture of mud flaps for commercial vehicles. 3. REQUIREMENTS 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 MATERIAL TESTING 3

4、.4.1 Preparation of Test Specimens Whenever possible, all test specimens shall be die-cut from the finished parts. When not feasible, specimens cut from molded test sheets manufactured from the same material and with equivalent cure to molded parts are recommended. The test sheets shall have the fol

5、lowing dimensions: 114.03 x 81 mm, min x 3.2 +/- 0.2 mm 3.5 ORIGINAL PROPERTIES A2 A7 3.5.1 Density, g/cm3 1.02 +/- .02 1.04 +/- .02 (ISO 1183, Method A/ASTM D 297) 3.5.2 Hardness, Durometer A, +/- 5 95 80 (ISO 868/ASTM D 2240, 15 s delay) 3.5.3 Tensile Strength, MPa, min 5.5 3.8 (ISO 37/ASTM D 412,

6、 Die C) 3.5.4 Elongation at Break, %, min 150 100 (Test Method according to para 3.5.3) 3.5.5 Modulus at 100% Elongation, MPa 5.0 3.2 (Test Method according to para 3.5.3) ENGINEERING MATERIAL SPECIFICATION WSS-M2D476-A2/A7 Copyright 2016, Ford Global Technologies, LLC Page 2 of 2 A2 A7 3.5.6 Tear S

7、trength, kN/m, min 35 18 (ISO 34, Method B, procedure (a)/ ASTM D 624, Die C) 3.5.7 Cold Flexibility at - 40 +/- 1 C No cracking No cracking (FLTM BN 102-01, except 25 x 98 mm sample) 3.5.8 Ozone Resistance, max Rating 0 Rating 0 (FLTM BP 101-01, Procedure A) 3.6 HEAT AGED (ISO 188/ASTM D 573, 150 +

8、/- 50 air changes/h, 168 h at 70 +/- 2 C) 3.6.1 Hardness Change, max +/- 5 +/- 5 3.6.2 Tensile Strength Change, %, max +/- 15 +/- 15 3.6.3 Elongation Change, %, max +/- 25 +/- 25 3.6.4 Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.7 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of these specifications. 5.1 RECYCLING CODE PP+SBR 5.2 RECYCLED RUBBER CONTENT, % by wt 40 70

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