1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions REV 04 2015 04 09 Revision See Para 5 for revisions B. Haggart, Global Materials Team 2011 03 23 Revision See Para 5 for revisions B. Haggart, Global Materials Team 2006 12 06 Revised Paragraph 3.8, 3.8.1 Added 3.8.3. L. Schmalz Controlled do
2、cument at www.MATS Copyright 2015, Ford Global Technologies, LLC Page 1 of 8 POLYPROPYLENE (PP) MOLDING COMPOUND, WSS-M4D638-B MOLDED-IN-COLOR, INTERIOR 1. SCOPE The material defined by this specification is a molded-in-color low gloss, polypropylene copolymer that is UV stabilized for unpainted int
3、erior applications with good impact and thermal performance. 2. APPLICATION This specification was released originally for material used for interior trim components. 2.1 LIMITATIONS This material is not intended for painted applications. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATE
4、RIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). Note: Many 4D resin specifications prior to 2011, identified certain requirements with the symbol (s), which indicated that the mean and +/- 3 sigma values were t
5、o be reported. The specification minimum, maximum or range was established using 3 sigma data. For 2011 and beyond, refer to Table 1 for number of samples required for each test. 3.1.1 This specification is based on virgin materials, however materials with recycled content as defined by WSS-M99P42-A
6、 (post-consumer and/or post industrial recyclates and repolymerised recycled materials) should be used whenever technically feasible. The use of regrind is permitted, for economic / environmental reasons, Follow CAD and Drafting Standard E-4 for requirements and identification of regrind content. 3.
7、1.2 Materials used in interior applications must meet the requirements outlined in WSS-M99P2222-D1/Latest, Performance, Vehicle Interior Environment Quality Material/Component Requirements. Data must be included in material submission package. 3.1.3 Performance Criteria: Parts using this specificati
8、on shall meet the appropriate performance specification, WSS-M15P4-F/Latest for Hard, Interior, Molded-in-Color component performance. ENGINEERING MATERIAL SPECIFICATION WSS-M4D638-B Copyright 2015, Ford Global Technologies, LLC Page 2 of 8 3.2 SAMPLE PREPARATION Unless otherwise specified all tests
9、 shall be carried out on injection molded, one-end gated test specimens. The test specimens A and D shall be molded using molding conditions defined in ISO 1873-2. No annealing is allowed. See Table 1 for the number of specimens required. Specimens shall be as follows: Specimen A 150 minimum x 10 x
10、4.0 +/- 0.2 mm (ISO 527-2, Specimen Type 1A) Specimen B 355 x 100 x 1.0 +/- 0.1 mm (ISO 3795) Specimen C 145 x 60 x 3.2 +/- 0.2 mm Specimen D Center of Specimen A. 80 x 10 x 4.0 +/- 0.2 mm Specimen E 100 mm diameter x 3.2 mm Specimen F 80 mm diameter x 3.2 mm Specimen G 90 mm x 200 mm Specimen H 50
11、+/- 1 mm diameter x 3.2 +/- 0.2 mm Specimen I 100 mm x 150 mm, min 3.3 APPEARANCE 3.3.1 Weathering Resistance Rating 4 min (FLTM BO 116-01, 2406.4 kJ/m2 exposure Specimen C from smooth polished mold, ISO 105-A02 / AATCC Evaluation Procedure 1) Every 526.4 kJ/m2 remove the samples from the weatherome
12、ter and allow them to cool for one hour. Conduct a tactile evaluation and report any tackiness. Visually evaluate and report any spewing or other exudation. After exposure the material shall show no fading or color change in excess of specified AATCC rating. In addition, there shall be no cracking,
13、crazing or other deterioration. Use regional choice colors for initial approval and report color house used. For color durability submissions, test all program colors. 3.3.2 Resistance to Scratch and Mar (FLTM BO 162-01, Specimen I) Scratch Rating 2 at 2 N, max Whitening/Color Change Rating 1 at 7 N
14、, max Marring Rating 2 at 2 N, max These values are derived from colored and grained samples in agreement with Materials Engineering. Details regarding color house, let down ratio, colors, grain, etc can be found in the approval package. 3.4 MATERIAL PROPERTIES 3.4.1 Density 0.89 0.92 g/cm3 (ISO 118
15、3, Method A) 3.4.2 Tensile Strength at Yield 17 MPa min (ISO 527-1 Flow 8 13 E-5 mm/mm/ C 3.5.2 Coefficient of Linear Thermal Expansion; Across Flow 10 18 E-5 mm/mm/ C 3.5.3 Mold Shrinkage (Method used: ISO 294-3 Max Load Energy at 23 +/- 2 C 20 26 J 3.5.6.2 Impact Strength, Multiaxial; Max Load Ene
16、rgy at 0 +/- 2 C 20 24 J 4.2 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES PP (ISO 1043) ENGINEERING MATERIAL SPECIFICATION WSS-M4D638-B Copyright 2015, Ford Global Technologies, LLC Page 6 of 8 Table 1: Number of Specimens Required Initial Approval New Manufacturing Location for Previously Approve
17、d Material Test Lots Specimens per lot Total Test Specimens Lots Specimens per lot Total Test Specimens 3.1 WSS-M99P1111-A IR, TGA, DSC 1 1 1 per test 3.1.2 WSS-M99P2222-D1 Total Carbon, Hazardous Substances, Formaldehyde, Acraldehyde, Acetaldehyde (See below for odor and fogging) 1 1 1 per test 3.1
18、.3 WSS-M15P4-F See Performance Specifications 3.3.1 Weathering Resistance 1 1 1 3.3.2 Resistance to Scratching 1 1 1 3.4.1 Density 1 3 3 3.4.2 Tensile Strength at Yield* 3 5 15 1 5 5 3.4.3 Elongation at Yield* 3 5 15 1 5 5 3.4.4 Tensile Modulus 1 10 10 3.4.5 Flexural Modulus* 3 10 30 1 10 10 3.4.6 I
19、mpact Strength, Notched Izod (per condition)* 3 10 30 1 10 10 3.4.7 Heat Deflection Temperature* 3 2 6 1 2 2 3.4.8 Heat Aged Properties 3.4.8.1 Tensile Strength at Yield Change 1 5 5 3.4.8.2 Impact Strength, Notched Izod Change 1 10 10 3.4.9 Odor 1 9 9 3.4.10 Fogging 1 3 3 3.4.11 Flammability 1 5 5
20、3.5.1 Melt Flow Rate 1 1 1 3.5.2 Coefficient of Linear Thermal Expansion (per condition) 1 3 3 3.5.3 Mold Shrinkage 1 5 5 3.5.4 Poissons Ratio 1 5 5 3.5.5 Impact Strength, Notched Charpy (per condition) 1 10 10 3.5.6 Impact Strength, Multiaxial 3 10 30 1 10 10 * For these requirements, the 3 Sigma v
21、alue from the raw data is used to set the requirement max or min. ENGINEERING MATERIAL SPECIFICATION WSS-M4D638-B Copyright 2015, Ford Global Technologies, LLC Page 7 of 8 Table 2: Color Property Testing Minimum Color Property Testing - Contact Materials Engineering for Color Test Work Plan 5. SUMMA
22、RY OF REVISIONS 2015 04 09 Updated ductility requirement 3.5.6.2 for 0 C multi axial impact from 80% ductile to “Report Only” Removed gravimetric fogging Updated poissons ratio typical value from 0.41 0.49 to 0.4 3/23/11 Updated Format Revised Title to include “Molded-In-Color“ Revised Para 1 Scope
23、verbiage Revised Para 2 Application by removing “requiring improved impact performance“ Added Para 3.1.1 for statistical data Added Para 3.1.2 for recycled content and regrind Added Para 3.1.3 for VIEQ Added Critical Process Parameters Moved Melt Flow Rate to General Information Para 5.1 Added Appea
24、rance Para 3.2 and Gloss Rating Para 3.2.1 Revised Para 3.3.1 for Test Specimen size to current M4D template Revised Para 3.3.3 to Tensile Strength at “Yield“ Revised Para 3.3.3.1 to Elongation at “Yield“ Added Para 3.3.4 Tensile Modulus Revised Para 3.3.5 for Flex Modulus to include test speed Remo
25、ved Para 3.5.5 Shear Modulus at 23C Revised Para 3.3.6 for Izod Impact to remove testing done at -18C Revised Para 3.3.7 for Heat Deflection Temperature to be done at 1.80 MPa Added Para 3.4 for Odor Revised Para 3.5 for fogging by removing 1 h post test conditioning Removed Para 3.8.1 Xenon Arc Wea
26、therometer (Unfiltered) Removed Para 3.8.2 12 Months Florida Weathering Revised Para 5.2 CLTE to contain update ISO 11359-2 Method Para. Test Method Lots Specimens per Lot Total Test Specimens Color Test Direction 3.3.1 Weathering Resistance 1 1 1 Every color 3.3.2 Scratch Resistance 1 3 3 As direct
27、ed by Materials Engineering 3.4.2 Tensile Strength at Yield 1 5 5 As directed by Materials Engineering 3.4.5 Flexural Modulus 1 10 10 As directed by Materials Engineering 3.4.9 Odor 1 9 9 As directed by Materials Engineering 3.4.10 Fogging Photometric 1 3 3 As directed by Materials Engineering 3.4.1
28、1 Flammability 1 5 5 Every Color 3.5.5 Impact Strength, Notched Charpy at 23 +/- 2 C 1 10 10 As directed by Materials Engineering ENGINEERING MATERIAL SPECIFICATION WSS-M4D638-B Copyright 2015, Ford Global Technologies, LLC Page 8 of 8 Revised Para 5.3 Mold Shrinkage to use M4D Template verbiage Added Para 5.4 Resistance to Scratching Moved Multiaxial Impact to General Information Para 5.5 Added Para 5.6 Impact Strength Charpy, Notched Added Para 5.7 Poissons Ratio Removed Para 5.3 Hardness, Durometer D
