1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 07/30/09 TO BE N-STATUS No known use. No Replacement Named C. Mracna, NA 2004 08 26 Revised Para 3.0 inserted; para 3.1, 3.2, 3.3.2, 3.4, 3.6 & 4 deleted 1986 08 13 Released CR1-6000-440 M. A. Myers Printed copies are uncontrolled Copyright 20
2、09, Ford Global Technologies, LLC Page 1 of 3 POLYURETHANE MICROCELLULAR ELASTOMER, 15% GLASS ESB-M2D354-A2 FIBER REINFORCED - RRIM - EXTERIOR - PAINTABLE NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a glass fiber reinforced reaction injection molded (RRIM) th
3、ermosetting polyurethane containing an internal mold release (IMR) formed from components introduced together and reacted in the part mold cavity. 2. APPLICATION This specification was released originally for material used in the manufacture of body side cladding. 3. REQUIREMENTS 3.0 STANDARD REQUIR
4、EMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.3 MOLDED TEST SPECIMENS 3.3.1 Preparation of Test Specimens All test specimens shall be cut from 3.2 mm nominal thickness slab stock p
5、repared from production compound. 3.3.3 Density 1.14 +/- 0.05 g/cm3(ASTM D 792) 3.3.4 Glass Fiber Content 15 +/- 2% (ASTM D 2584, Method A, 1 h at 600 C) 3.3.5 Tensile Strength, min 17.3 MPa (ASTM D 412, Die C, 508 mm/min) Elongation, min 50% 3.3.6 Tear Strength, min 70 kN/m (ASTM D 624, Die C, 508
6、mm/min) 3.3.7 Flexural Modulus (ASTM D 790, Method I, Procedure B) . At -30 +/- 1 C, max 1.4 GPa . At 23 +/- 2 C 530 - 650 MPa . At 70 +/- 1 C, min 340 MPa ENGINEERING MATERIAL SPECIFICATIONESB-M2D354-A2Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 2 of 3 3.3.8 L
7、ow Temperature Brittleness, at -5 C No cracks (ASTM D 746, buff samples to required thickness on one side only. The unbuffed side of the sample shall be subjected to tension during testing) 3.3.9 Heat Aged, 30 min at 150 C (ASTM D 573) Tensile Strength Change, max -25% Elongation Change, max -5% Har
8、dness Change -15 to +5 3.3.10 Heat Aged, 168 h at 100 C (ASTM D 573) Tensile Strength Change, max -15% Elongation Change, max -5% Hardness Change +/- 5 3.3.11 Water Absorption, by weight, max (FLTM BO 129-02) . After 24 h 2.0% . After 240 h 4.0% 3.3.12 Water Immersion Dimensional Stability, Expansio
9、n, max +0.010% (FLTM BO 129-01, after 240 h) 3.3.13 Water Immersion Warp Test, Warp Height, max (FLTM BO 029-03) . After 24 h 15 mm . After 240 h 25 mm 3.3.14 Heat Aging Performance (ASTM D 573, 1,000 h at 100 + 2 C) Tensile Strength Change, max -25% Elongation Change, max -25% Hardness Change +/- 5
10、 ENGINEERING MATERIAL SPECIFICATIONESB-M2D354-A2Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 3 of 3 3.3.15 Humidity Aging Performance (1,000 h at 37 +/- 1 C/99 +/- 1% R.H., conduct tests 2 +/- 0.25 h after removal from test chamber) Tensile Strength Change, max
11、25% Elongation Change, max -25% Hardness Change +/- 5 3.5 DECORABILITY Parts fabricated from materials defined by this specification requiring a decorative coating (paint, etc.) must meet the engineering performance specification requirements shown on the drawing. All decorative coating materials m
12、ust be approved and released for use by the affected product engineering office. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 HARDNESS, DUROMETER D 60 - 80 (ASTM D 2240) 5.2 MOLD SHRINKAGE 0.005 - 0.007 (ASTM D 955) 5.3 COEFFICIENT OF LINEAR THERMAL EXPANSION 9 - 13 x 10-5/C (ASTM D 696)
