1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 0 2013 01 04 Released K. Waugh, FNA Controlled document at www.MATS Copyright 2013, Ford Global Technologies, LLC Page 1 of 8 THERMOPLASTIC POLYOLEFIN ELASTOMER (TPO), WSS-M4D1025-A1 MOLD-IN-COLOR, MOLDING COMPOUND, EXTERIOR, HIGH IMPACT
2、, MEDIUM-LOW STIFFNESS 1. SCOPE The material defined by this specification is a thermoplastic injection molding compound based on thermoplastic polyolefin elastomer. This material is UV stabilized for parts that require good impact, surface appearance and weather resistance for exterior applications
3、. 2. APPLICATION This specification was released originally for materials used for medium-low stiffness applications, primarily low-to-ground applications (fascia speed lip, lower valence, tire spoiler, etc.). 2.1 LIMITATIONS This material is limited to mold-in-color applications and should not be u
4、sed for painted applications. 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 specifications prior to 2011, identified certain re
5、quirements 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 required for each test. 3.1.2 This specification is ba
6、sed on virgin materials. Materials with post-consumer, post industrial, or repolymerised recycled materials as defined by WRS-M99P42-A1 are preferred and should be used whenever feasible. 3.1.3 The use of regrind is permitted, for economic / environmental reasons, with compliance as indicated in For
7、d Engineering CAD and Drafting Standard E-4. 3.1.4 Performance Criteria: Parts using this specification shall meet the appropriate performance specifications, WSS-M98P13-C/Latest. 3.1.5 As specified in WSS-M99P1111-A, paragraph 3.2, Ford Materials Engineering may request a Control Plan and Certifica
8、te of Analysis (CoA) containing lot testing requirements which must include, but are not limited to: ENGINEERING MATERIAL SPECIFICATION WSS-M4D1025-A1 Copyright 2013, Ford Global Technologies, LLC Page 2 of 8 Melt Flow Rate Filler Content Impact Strength, Notched Charpy at 23C Flexural Modulus 3.2 S
9、AMPLE 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. See Tables 1 and 2 for the number of specimens required. Specimens shall be as fol
10、lows: 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 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 Spec
11、imen 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 3.3.1 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 radian
12、t exposure monitored at 340 nm, 3000 h total exposure. Specimen C, from smooth polished mold, ISO 105-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 sou
13、th, direct weathering inland, Specimen C from smooth polished mold, ISO 105-A02 / AATCC Evaluation 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 gl
14、oss or chalking will be allowed provided an acceptable appearance can be achieved as specified below 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
15、 world outdoor exposure results for final approval. ENGINEERING MATERIAL SPECIFICATION WSS-M4D1025-A1 Copyright 2013, Ford Global Technologies, LLC Page 3 of 8 3.3.3 Scratch Resistance (FLTM BO 162-01, Specimen I) Scratch Rating 2 at 2 N, max Whitening/Color Change Rating 1 at 7 N, max Marring Ratin
16、g 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 0.94 g/cm3 (ISO 1183, Method A) 3.4.2
17、Hardness, Durometer D 46 - 62 (ISO 868, 15 s dwell) 3.4.3 Tensile Strength at Yield 12 MPa min (ISO 527-1 & ISO 527-2, Specimen A, 50 mm/minute test speed) 3.4.4 Elongation at Yield 9 % min (ISO 527-1 & ISO 527-2, Specimen A 50 mm/minute test speed) 3.4.5 Tensile Modulus 560 MPa min (ISO 527-1 and I
18、SO 527-2, Specimen A, 1 mm/minute test speed) 3.4.6 Flexural Modulus 460 MPa min (ISO 178, Specimen D, 64 mm support span, 2 mm/minute test speed) 3.4.7 Impact Strength, Notched Charpy (ISO 179-1/1eA, Specimen D) 3.4.7.1 At 23 +/- 2 C 44 kJ/m2 min Partial Break 3.4.7.2 At -40 +/- 2 C 2 kJ/m2 min Com
19、plete Break 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. 3.4.8 Impact Strength Multiaxial (AST
20、M D 3763, Impact velocity: 2.2m/s, Specimen E, smooth surface injection molded specimen) ENGINEERING MATERIAL SPECIFICATION WSS-M4D1025-A1 Copyright 2013, Ford Global Technologies, LLC Page 4 of 8 Max Load Energy and % Ductility Report J Energy Absorbed of samples at 23 +/- 2 C 100% Ductile Failure,
21、 min Max Load Energy and % Ductility Report J Energy Absorbed of samples at -40 +/- 2 C 100% Ductile Failure, min 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 test temperatu
22、re 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. Summarize te
23、sting at each condition by providing the following information as well as the information in Figure 1. a. Detailed description of specimen preparation b. Molding conditions: melt and mold surface temperatures, and average injection velocity c. Number of samples tested per lot per temperature d. Numb
24、ers of lots tested e. Number of samples with ductile failure per each test condition f. Representative force vs. deflection curve for each impact event Test results shall be submitted with an Initial Qualification of the material with curves (electronic data as well as paper copies) and test samples
25、. 3.4.9 Heat Deflection Temperature 40 C min (ISO 75-1 and ISO 75-2 Specimen D, flatwise, 0.34 +/- 0.1 mm deflection. At 1.80 MPa) All specimens dry as molded. If not tested immediately after molding, specimens must be stored in a sealed, moisture-proof container filled with silica gel. Operator Nam
26、eSample IDTest noDate/tim Lot IDTemperature( C Impacvelocity(m/s)Impacenergy(JTime tomax load(ms)Total time(ms)Maximumload (kN)Energy to max load(JTotaenergy(JDeflectioat max load(mm)# ofCrackCracklengthmax. (mm)Failuretype (Ductile /Brittle12345678910 AverageMedianMinimuMaximumCoef. of Var.Std. Dev
27、.Figure 1 - Data SummaryENGINEERING MATERIAL SPECIFICATION WSS-M4D1025-A1 Copyright 2013, Ford Global Technologies, LLC Page 5 of 8 3.4.10 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 120 +/- 2 C. After heat aging test specimens are to be conditioned in a desiccator fo
28、r 3 - 5 h at 23 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.4.10.1 Tensile Strength at Yield, Change +/- 25% (Test method per para 3.4.3) 3.4.10.2 Impact Strength, Charpy, Change +/- 25% (Test Method per para 3.4.7.1, specimens to be notche
29、d before heat aging) 3.4.11 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 Filler Content Report Value, % (ISO 3451-1, Method A, talc filler, Report Filler Type 3 h at
30、 650 +/- 25 C, 2.16kg) 3.5.2 Melt Flow Rate Report Value, g/10minutes (ISO 1133 230 C, 2.16 kg) 3.5.3 Molding Shrinkage (Report method used, sample size and value) After 48 h at 23 +/- 2 C Flow Report Value, % Cross Flow Report Value, % 3.5.4 Coefficient of Linear Thermal Expansion (ISO 11359-2, -30
31、 +/- 2 C to Tg, Tg to 100 +/- 2 C) Flow Report Value, E-5 mm/mm/C Across Flow Report Value, E-5 mm/mm/C 3.5.5 Impact Strength, Notched Izod (ISO 180/1A, Specimen D) 3.5.5.1 At 23 +/- 2 C Report, kJ/m2 Report Break 3.5.5.2 At -40 +/- 2 C Report, kJ/m2 ENGINEERING MATERIAL SPECIFICATION WSS-M4D1025-A1
32、 Copyright 2013, Ford Global Technologies, LLC Page 6 of 8 Report Break 3.5.5.3 At 0 +/- 2 C Report, kJ/m2 Report Break 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,
33、 if not possible, test may be conducted outside, but within 5 seconds. 3.5.6 Poissons Ratio Report Ratio (ISO 527-1/2, Specimen A, 1 mm/minute test speed) 3.5.7 Supplemental Information The following curves are to be submitted with the data packages: FTIR TGA DSC CLTE Engineering Stress/Strain at 23
34、 C 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. 4.1 TYPICAL PROPERTIES USING METHODS IN SECTION 3.5 Para. Test Typical Value Un
35、its 3.5.1 Filler Content 0 4 % 3.5.2 Melt Flow Rate 5 12 g/10minutes 3.5.3 Molding Shrinkage After 48 h at 23 +/- 2 C Flow Cross Flow 1.03 1.08 % % 3.5.4 Coefficient of Linear Thermal Expansion Flow Cross Flow 7.88 9.18 8.84 9.92 E-5 mm/mm/C 3.5.5 3.5.5.1 3.5.5.2 3.5.5.3 Impact Strength, Notched Izo
36、d At 23 +/- 2 C At -40 +/- 2 C At 0 +/- 2 C 39 64 3.8 - 6.9 29 - 69 kJ/m2 min 3.5.6 Poisson Ratio 0.49 NA 4.2 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES TPO-(PP+EPDM) (ISO1043/11469/18064) ENGINEERING MATERIAL SPECIFICATION WSS-M4D1025-A1 Copyright 2013, Ford Global Technologies, LLC Page 7 of 8
37、 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-A 3.1.4 WSS-M98P13-C Reference performance specification 3.3.1 Weathe
38、ring 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 Density 1 3 3 1 3 3 3.4.2 Hardness, Durometer D* 3 5 measurements 3 3.4.3 Tensile Strength at Yield* 3 5 15 1 5 5 3.4.4 Elongation at Yield* 3 5 15 1 5 5 3.4.5 Tensile Modulus* 3 10 30 3.4.6 Flexural Modulus*
39、 3 10 30 1 10 10 3.4.7 Impact Strength Notched Charpy (per condition)* 3 10 30 1 10 10 3.4.8 Impact Strength, Multiaxial (per condition)* 3 10 30 1 10 10 3.4.9 Heat Deflection Temperature* 3 2 6 1 2 2 3.4.10 Heat Aging Performance 3.4.10.1 Tensile Strength at Yield, Change 1 5 5 3.4.10.2 Impact Stre
40、ngth, Charpy, Change 1 10 10 3.4.11 Flammability 1 5 5 3.5.1 Filler Content 1 3 3 1 1 1 3.5.2 Melt Flow Rate 1 3 3 1 1 1 3.5.3 Mold Shrinkage 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 3.5.6 Poissons Rati
41、o 1 2 2 1 2 2 3.5.7 Curves - IR - TGA - DSC - CLTE - Engineering Stress/Strain at 23 C 1 1 1 per test *3 Sigma statistical data is required for the noted tests. Individual data points shall be reported. ENGINEERING MATERIAL SPECIFICATION WSS-M4D1025-A1 Copyright 2013, Ford Global Technologies, LLC P
42、age 8 of 8 Table 2: Minimum Color Property Testing Para. Test Lots Specimens per Lot Total Test Specimens Color Test Direction 3.3.1 Weathering Resistance 1 1 1 Every color 3.3.3 Scratch Resistance 1 3 3 As directed by Materials Engineering 3.4.5 Tensile Strength at Yield 1 5 5 As directed by Materials Engineering 3.4.8 Flexural Modulus 1 10 10 As directed by Materials Engineering 3.4.9 Impact Strength, Notched Charpy at 23 +/- 2 C 1 10 10 As directed by Materials Engineering 3.4.13 Flammability 1 5 5 Every color
