1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions REV 04 2015 04 09 Revision See Summary of Revisions B. Haggart, NA 2012 11 19 Revised Flex/Tensile Modulus Requirement Change B. Haggart, NA 2011 03 23 Revision See Para 5 for revisions B. Haggart, NA Controlled document at www.MATS Copyright
2、 2015, Ford Global Technologies, LLC Page 1 of 8 POLYPROPYLENE (PP) MOLDING COMPOUND, WSS-M4D638-C MOLDED-IN-COLOR, INTERIOR, HIGH IMPACT 1. SCOPE The material defined by this specification is a molded-in-color, low gloss, polypropylene copolymer for unpainted interior applications with improved imp
3、act performance. 2. APPLICATION This specification was released originally for material used for interior pillar applications requiring improved impact performance. 2.1 LIMITATIONS This material is not intended for painted applications. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERI
4、ALS 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 to
5、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. Materials with post-consumer, post industrial, or repolymerised recy
6、cled materials as defined by WRS-M99P42-A1 are preferred and should be used whenever feasible. 3.1.2 The use of regrind is permitted, for economic / environmental reasons, with compliance as indicated in Ford Engineering CAD and Drafting Standard E-4 3.1.3 Materials used in interior applications mus
7、t 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. 3.1.4 Performance Criteria: Parts using this specification shall meet the appropriate performance speci
8、fication, WSS-M15P4-F/ Latest, Hard, Interior, Molded-in-Color Component Performance. ENGINEERING MATERIAL SPECIFICATION WSS-M4D638-C Copyright 2015, Ford Global Technologies, LLC Page 2 of 8 3.2 SAMPLE PREPARATION Unless otherwise specified all tests shall be carried out on injection molded, one-en
9、d 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 4.0 +/- 0.2 mm (ISO 527-2, Specimen Type 1A) Spec
10、imen 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 +/- 1 mm diameter x 3.2 +/- 0.2 mm Specimen I 100
11、 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 weatherometer and allow them to cool for one hour. Conduct
12、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, crazing or other deterioration. Use regional choi
13、ce 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, max Marring Rating 2 at 2 N, max These values a
14、re 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 1183, Method A) 3.4.2 Tensile Strength at Yield 16 M
15、Pa min (ISO 527-1 Flow 9 13 E-5 mm/mm/ C 3.5.2 Coefficient of Linear Thermal Expansion; Across Flow 13 16 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 Energy at -30 +/- 2 C 22 30 J 4.2 MATERIAL IDENTIFIC
16、ATION FOR RECYCLING PURPOSES PP (ISO 1043) ENGINEERING MATERIAL SPECIFICATION WSS-M4D638-C Copyright 2015, Ford Global Technologies, LLC Page 6 of 8 Table 1: Number of Specimens Required Initial Approval New Manufacturing Location for Previously Approved Material Test Lots Specimens per lot Total Te
17、st 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 3.1.4 WSS-M15P4-F See Performance Specification 3.
18、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 Impact Strength, Notched Izod (per condition)* 3
19、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 3.5.1 Melt Flow Rate 1 1 1 3.5.2 Coefficient of
20、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 value from the raw data is used to set the requir
21、ement max or min. ENGINEERING MATERIAL SPECIFICATION WSS-M4D638-C Copyright 2015, Ford Global Technologies, LLC Page 7 of 8 Table 2: Color Property Testing Table 2: Minimum Color Property Testing - Contact Materials Engineering for Color Test Work Plan 5. SUMMARY OF REVISIONS 2015 04 09 Updated Xeno
22、n Weathering requirement from 2481.6 to 2406 Removed gravimetric fogging Clarified Odor Updated poissons ratio typical value 11/19/2012 Flex modulus change from 850 MPa to 800 MPa Tensile modulus change from 1000 MPa to 900 MPa 03/23/11 Updated Format Revised Title to include “High Impact“ Revised P
23、ara 1 Scope verbiage Revised Para 2 Application by removing airbags and adding pillars 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 Appearance Para 3.2 and Gloss Rating Para 3.
24、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 Revised Para 3.3.6 for Izod Impact to remov
25、e testing done at -18C Revised Para 3.3.7 for Heat Deflection Temperature to be done at 1.80 MPa Revised Para 3.3.9 to be consistent with M4D Template and to include note that material must be ductile at -30C Added Para 3.4 for Odor Revised Para 3.5 for fogging by removing 1 h post test conditioning
26、 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 directed 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
27、 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 3.4.11 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
28、ENGINEERING MATERIAL SPECIFICATION WSS-M4D638-C Copyright 2015, Ford Global Technologies, LLC Page 8 of 8 Removed Para 3.6.1 Xenon Arc Weatherometer (Unfiltered) Removed Para 3.6.2 12 Months Florida Weathering Revised Para 5 General Information to contain new verbiage in M4D Template Revised Para 5.3 Mold Shrinkage to use M4D Template verbiage Added Para 5.4 Resistance to Scratching Added Para 5.5 Impact Strength Charpy, Notched Added Para 5.6 Poissons Ratio Revised Para 5.7 to include ISO 1043 Removed Para 4.3 Hardness, Durometer D
