1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 2 2013 03 14 Revised Editorial, See Summary of Revisions V. Cerato, EU 2012 09 12 Released Format review and addition of WSS-M4D873-B2 V.Cerato, FoE 2011 10 26 Activated V.Cerato, FoEControlled document at www.MATS Copyright 2013, Ford Gl
2、obal Technologies, LLC Page 1 of 9 THERMOPLASTIC POLYOLEFIN ELASTOMER (TPO) 15% MINERAL FILLED, MOLDING COMPOUND, MOLD-IN-COLOR, EXTERIOR WSS-M4D873-B1 THERMOPLASTIC POLYOLEFIN ELASTOMER (TPO) 15% MINERAL FILLED, MOLDING COMPOUND, PAINTABLE OVER GRAIN, EXTERIOR WSS-M4D873-B2 1. SCOPE The material de
3、fined by this specification is a 15% mineral filled thermoplastic injection molding compound based on thermoplastic polyolefin elastomer (TPO). For mold-in-color with added UV stabilization for exterior, use WSS-M4D873-B1, or use WSS-M4D873-B2 for painting over grain, provided that suitable surface
4、pretreatment is used. 2. APPLICATION WSS-M4D873-B1 This specification was released originally for material used for exterior parts, mold- in-color, which are exposed to sunlight such as bumper shells and body side moldings. Any color additives need to be reviewed and approved by the raw material sup
5、plier and Ford Materials Engineering. The UV/process/heat stabilizers must be in the base resin from the material supplier, not in the color concentrate, specifically for mold-in-color applications at the press. WSS-M4D873-B2 This specification was released originally for material used for painted e
6、xterior applications, such as bumper shells and body side moldings. This specification was developed to be used in conjunction with WSS-M4D873-B1 to match shrinkages when moulding both painted and unpainted components in one grained tool. Any color additives need to be reviewed and approved by the r
7、aw material supplier and Ford Materials Engineering. The process/heat stabilizers must be in the base resin from the material supplier. 2.1 LIMITATIONS WSS-M4D873-B1 - This material should not be used for painted applications since it contains performance additives that negatively affect paint adhes
8、ion. - This material should not be used for fascias in FNA. WSS-M4D873-B2 - This material is unlikely to contain UV stabilizers, therefore long term exposure to direct sunlight could cause chalking and loss of gloss. - This material should not be used for fascias in FNA. ENGINEERING MATERIAL SPECIFI
9、CATION WSS-M4D873-B1/B2 Copyright 2013, Ford Global Technologies, LLC Page 2 of 9 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 Many 4D resin
10、 specifications prior to 2011, identified certain requirements with the symbol (s), which indicated that the mean and +/- 3 sigma values were to 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 re
11、quired for each test to establish specification limits. 3.1.2 These specifications are based on virgin materials, however materials with recycled content as defined by WRS-M99P42-A1 (post-consumer and/or post industrial recyclates and repolymerised recycled materials) should be used whenever technic
12、ally feasible and following all materials and PV testing required by Ford Materials Engineering. 3.1.3 The use of regrind is permitted, for economic / environmental reasons, with compliance as indicated in Ford Engineering CAD and Drafting Standard E-4. 3.1.4 Performance Criteria: WSS-M4D873-B1- Par
13、ts using this specification shall meet the appropriate performance specifications WSS-M98P13-C / Latest. WSS-M4D873-B2- Parts using this specification shall meet the appropriate performance specifications WSS-M2P181-C / Latest. Parts must fulfill applicable SDS/CDS requirements. 3.1.5 As specified i
14、n WSS-M99P1111-A, paragraph 3.2, Ford Materials Engineering may request a Control Plan and Certificate of Analysis (CoA) containing lot testing requirements which must include, but are not limited to: Melt Flow Rate Filler Content Impact Strength, Notched Charpy at 23C Flexural Modulus Mould shrinka
15、ge Post shrinkage 3.2 SAMPLE PREPARATION Unless otherwise specified all tests 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 Tables 1 and 2 for the number
16、of samples required. ENGINEERING MATERIAL SPECIFICATION WSS-M4D873-B1/B2 Copyright 2013, Ford Global Technologies, LLC Page 3 of 9 Specimens shall be as follows: Specimen A 150 minimum x 10 x 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
17、 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 mm x 150 mm, min 3.3 APPEARANCE (WSS-M4D873-B1 ONLY) 3.3.1
18、 Weathering Resistance Rating 4 min (SAE J2527 Atlas Water Cooled, Rotary Drum Xenon-Arc Apparatus only. Modified Type “S“ borosilicate inner and outer filters, 0.55 W/m2 radiant exposure monitored at 340 nm, 3000 h total exposure or as otherwise defined, Specimen C, from smooth polished mold, ISO 1
19、05-A02 / AATCC Evaluation Procedure 1) For color durability submissions, test all program colors. 3.3.2 1 and 2 year Florida Rating 4 min Initial Qualification for new resin technology (SAE J1976, 5 south, direct weathering inland, Specimen C from smooth polished mold, ISO 105-A02 / AATCC Evaluation
20、 Procedure 1) After exposure the material shall show no color change in excess of the specified AATCC Rating. In addition, there shall be no cracking, crazing or other deterioration. A slight loss of gloss or chalking will be allowed provided an acceptable appearance can be achieved as specified bel
21、ow by washing with mild detergents and water (ratio 5:95 by volume) or equivalent after the outdoor exposure only. All initial approvals may be based on the accelerated weathering exposure, pending real world outdoor exposure results for final approval. 3.3.3 Resistance to Scratch and Mar (FLTM BO 1
22、62-01, 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 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 i
23、n the approval package. ENGINEERING MATERIAL SPECIFICATION WSS-M4D873-B1/B2 Copyright 2013, Ford Global Technologies, LLC Page 4 of 9 3.4 MATERIAL PROPERTIES 3.4.1 Filler Content 12-18 % (ISO 3451-1, Method A, 1h at 850 +/- 50 C, test portion 2 to 2.5 g) 3.4.2 Density 1.01-1.04 g/cm3 (ISO 1183, Meth
24、od A) 3.4.3 Tensile Strength at Yield 16 MPa min (ISO 527-1 and ISO 527-2, Specimen A, 50 mm/minute test speed) 3.4.4 Tensile Modulus 1.20 GPa min (ISO 527-1 and ISO 527-2, Specimen A, 1 mm/minute test speed) 3.4.5 Flexural Modulus 1.24 GPa min (ISO 178, Specimen D, 64 mm support span, 2 mm/minute t
25、est speed) 3.4.6 Impact Strength, Notched Charpy (ISO 179-1/1eA, Specimen D) 3.4.6.1 At 23 +/- 2 C 40 kJ/m2 min Report Break Type 3.4.6.2 At -40 +/- 2 C 2 kJ/m2 min Report Break Type 3.4.6.3 At 0 +/- 2 C 10 kJ/m2 min Report Break Type The test specimen must be conditioned for minimum of 6 hours at t
26、he above specified temperature prior to impact test. Low temperature testing shall be done within the cold chamber, if not possible, test may be conducted outside, but within 5 seconds. 3.4.7 Heat Deflection Temperature 43 C min (ISO 75-1 and ISO 75-2, Specimen D, flatwise, 0.34 +/- 0.1 mm deflectio
27、n. At 1.80 MPa) 3.4.8 Heat Aging Performance (ISO 188, 150 +/- 50 air changes/h, 1000 h at 120 +/- 2 C. After heat aging test specimens are to be conditioned in a desiccator for 3 - 5 h at 23 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.4.8.
28、1 Tensile Strength at Yield, Change +/- 25% max (Test Method per para 3.4.3) ENGINEERING MATERIAL SPECIFICATION WSS-M4D873-B1/B2 Copyright 2013, Ford Global Technologies, LLC Page 5 of 9 3.4.8.2 Impact Strength, Notched Charpy, Change +/- 25% max (Test Method per para 3.4.6.1, specimens to be notche
29、d before Heat Aging) 3.4.9 Flammability (ISO 3795/SAE J369, Specimen B, smooth surface) Burn Rate 100 mm/minute max 3.5 MATERIAL PROPERTIES REPORT ONLY Values are retained in Ford Materials Database . 3.5.1 Melt Flow Rate Report Value, g/10 minutes (ISO 1133, 230 C, 2,16 kg) 3.5.2 Molding Shrinkage
30、(Report method used, sample size and value) After 48 h at 23 +/- 2 C Flow Report Value, % Cross Flow Report Value, % 3.5.3 Post Shrinkage (WSS-M4D873-B2 ONLY) (Report method used, sample size and value Separate specimens required for each test, report total shrinkage) After 48 h at 80 C Flow Report
31、Value, % Cross Flow Report Value, % After 30 minutes at 120 C Flow Report Value, % Cross Flow Report Value, % 3.5.4 Coefficient of Linear Thermal Expansion (ISO 11359-2, -30 +/- 2 C to 100 +/- 2 C) Flow Report Value, E-5 mm/mm/ C Cross Flow Report Value, E-5 mm/mm/ C 3.5.5 Impact Strength, Notched I
32、zod (ISO 180/1A, Specimen D) 3.5.5.1 At 23 +/- 2 C Report Value, kJ/m2 Report Break Type 3.5.5.2 At -40 +/- 2 C Report Value, kJ/m2 Report Break Type ENGINEERING MATERIAL SPECIFICATION WSS-M4D873-B1/B2 Copyright 2013, Ford Global Technologies, LLC Page 6 of 9 3.5.5.3 At 0 +/- 2 C Report Value, kJ/m2
33、 Report Break Type The test specimen must be conditioned for minimum of 6 hours at the above specified temperature prior to impact test. Low temperature testing shall be done within the cold chamber, if not possible, test may be conducted outside, but within 5 seconds 3.5.6 Impact Strength Multiaxia
34、l (ASTM D 3763, Impact velocity: 2.2 m/s Specimen E, smooth surface injection molded specimen) Max Load Energy at 23 +/- 2 C Report J Energy Absorbed Report % Ductile Failure Max Load Energy at -15 +/- 2 C Report J Energy Absorbed Report % Ductile Failure Max Load Energy at -20 +/- 2 C Report J Ener
35、gy Absorbed Report % Ductile Failure Report test data for 23 +/- 2 C, and continue until a minimum of 80% ductile are observed. A ductile failure is defined as a crack that does not radiate more than 10 mm from the center of the impact point. Test specimens must be conditioned for minimum of 6 h at
36、test temperature prior to impact testing. Low temperature testing shall be conducted within the same environmental chamber as the clamp mechanism of the impact device. Specimens can be transported from the conditioning environment to the testing environment, provided the transfer is within 5 seconds
37、. 3.5.7 Poissons Ratio Report Ratio (ISO 527-1 and ISO 527-2, Specimen A, 1 mm/minute test speed) 3.5.8 Supplemental Information The following curves are to be submitted with the data packages: FTIR TGA DSC CLTE Engineering Stress/Strain at 23 C 4. GENERAL INFORMATION The information given below is
38、provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. ENGINEERING MATERIAL SPECIFICATION WSS-M4D873-B1/B2 Copyright 2013, Ford Global Technologies, LLC Page 7 of 9 4.1 TYPICAL PROPERTIES USI
39、NG METHODS IN SECTION 3.5 Para. Test Typical Value Units 3.5.1 Melt Flow Rate 12 g/10 min 3.5.2 Molding Shrinkage After 48 h at 23 +/- 2 C (For specific method and sample size, contact Materials Engineering) Flow Cross Flow 0.65 1.05 % % 3.5.3 Post Shrinkage (WSS-M4D873-B2 ONLY) (For specific method
40、 and sample size, contact Materials Engineering. Values show total shrinkage) - After 48 h at 80 +/- 2 C Flow Cross Flow - After 30 minutes at 120 C Flow Cross Flow 0.68 0.94 0.77 0.99 % % % % 3.5.4 Coefficient of Linear Thermal Expansion Flow Cross Flow 7.7 9.0 E-5 mm/mm/ C E-5 mm/mm/ C 3.5.5 Impac
41、t Strength, Izod Notched At 23C At -40C At 0C 40 4 17 kJ/m2 kJ/m2 kJ/m2 3.5.6 Impact Strength Multiaxial At -20C At -30C 100 20.6 80 22 % J % J 3.5.7 Poissons Ratio 0.34 N/A 4.2 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES PP+EPDM-M15 (ISO 1043/11469/18064) ENGINEERING MATERIAL SPECIFICATION WSS-M
42、4D873-B1/B2 Copyright 2013, Ford Global Technologies, LLC Page 8 of 9 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-
43、A 3.1.4 Performance Criteria: WSS-M98P13-C or WSS-M2P181-C Reference Performance Specification 3.3.1 Weathering Resistance 1 1 1 3.3.2 1 and 2 year Florida 1 1 1 3.3.3 Scratch resistance 1 3 3 3.4.1 Filler Content* 3 1 3 1 1 1 3.4.2 Density 1 3 3 1 3 3 3.4.3 Tensile Strength at Yield * 3 5 15 1 5 5
44、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 Charpy (per condition)* 3 10 30 1 10 10 3.4.7 Heat Deflection Temperature* 3 2 6 1 2 2 3.4.8 Heat Aging Performance 3.4.8.1 Tensile Strength at Yield, Change 1 5 5 3.4.8.2 Impact Strength, Notched Cha
45、rpy, Change 1 10 10 3.4.9 Flammability 1 5 5 3.5.1 Melt Flow Rate 3 1 3 1 1 1 3.5.2 Mold Shrinkage 1 5 5 1 5 5 3.5.3 Post Shrinkage (painted applications only) 1 5 5 1 5 5 3.5.4 Coefficient of Linear Thermal Expansion (per condition) 1 3 3 3.5.5 Impact Strength, Notched Izod (per condition) 1 10 10
46、3.5.6 Impact Strength, Multiaxial (per condition)* 3 10 30 1 10 10 3.5.7 Poissons Ratio 1 2 2 1 2 2 3.5.8 Curves - IR - TGA - DSC - CLTE - Stress/Strain Curves 1 1 1 per test * For these requirements the 3 sigma value from the raw data is used to meet the requirements. ENGINEERING MATERIAL SPECIFICA
47、TION WSS-M4D873-B1/B2 Copyright 2013, Ford Global Technologies, LLC Page 9 of 9 Table 2: Minimum Color Property Testing - Contact Materials Engineering for Color Test Work Plan (WSS-M4D873-B1 ONLY) 5. SUMMARY OF REVISIONS 3-14-2013 Editorial section 3.3.3 corrected typo on section 3.3.3 whitening lo
48、ad from 2N to 7N Corrected typo on section 3.3.3 marring from 7N to 2N 9-12-2012 Addition of WSS-M4D873-B2 Review of WSS-M4D873-B1 to latest template- Editorial Added para: 3.5.3 3.5.6 Para. Test Lots Specimens per Lot Total Test Specimens Color Test Direction 3.3.1 Weathering Resistance 1 1 1 Every
49、 color 3.3.3 Scratch Resistance 1 3 3 As directed by Materials Engineering 3.4.3 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 3.4.6.1 Impact Strength, Notched Charpy at 23 +/- 2 C 1 10 10 As directed by Materials Engineering 3.4.9 Flammability 1 5 5 Every color
