1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 0 2012 04 27 Activated New Specification G.Kowalski, NA Controlled document at www.MATS Copyright 2012, Ford Global Technologies, LLC Page 1 of 6 POLYPHTHALAMIDE (PPA) 35% GLASS FIBER REINFORCED WSS-M4D861-A4 MOLDING COMPOUND 1. SCOPE Th
2、e material defined by this specification is a thermoplastic glass fiber reinforced molding compound based on polyphthalamide. 2. APPLICATION This specification was released originally for material used for alternator shields. 2.1 LIMITATIONS This material requires good drying equipment. This materia
3、l requires high processing temperatures. 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
4、 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 values. For 2011 and beyond, refer to Table 1 for number of samples required for each test to establish speci
5、fication limits 3.1.2 This specification is based 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 / environmenta
6、l reasons, with compliance as indicated in Ford Engineering CAD and Drafting Standard E-4. 3.1.4 Dry as molded: All test values indicated herein are based on material and specimens with moisture content not exceeding 0.2% except where noted (Moisture Conditioned) (test according to ISO 15512 Method
7、B/ASTM D6869). All test materials have to be sealed in moisture-proof containers and stored at 23 +/- 2 C for at least 24 h immediately after processing. If the moisture content exceeds 0.2%, conditioning the material for a minimum of 16 h at 40 50 C at a reduced pressure below 133 kPa. Conduct test
8、s in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5% relative humidity. Individual specimens shall not be removed from closed containers until immediately before testing. ENGINEERING MATERIAL SPECIFICATION WSS-M4D861-A4 Copyright 2012, Ford Global Technologies, LLC Page 2 of 6 3.1.5 As specified
9、 in WSS-M99P1111-A, paragraph 3.5, 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 3.2 SAMPLE
10、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 1874-2 No annealing is allowed. See Table 1 for the number of samples required. Specimens shall
11、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 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.
12、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 MATERIAL PROPERTIES 3.3.1 Melt Temperature 300 - 314 C (ISO 11357, 10 C/min heating rate) 3.3.2 Glass Content 33.3 36.5 % (ISO 3451-4, test temperature 600 +/- 25C, test portion 2 to 2
13、.5 g) 3.3.3 Density 1.43 1.49 g/cm3 (ISO 1183, Method A) 3.3.4 Tensile Strength at Break 162 MPa min (ISO 527-1 and ISO 527-2, Specimen A, 5 mm/minute test speed) 3.3.5 Tensile Modulus 10.8 GPa min (ISO 527-1 and ISO 527-2, Specimen A, 1 mm/minute test speed) ENGINEERING MATERIAL SPECIFICATION WSS-M
14、4D861-A4 Copyright 2012, Ford Global Technologies, LLC Page 3 of 6 3.3.6 Impact Strength, Notched Charpy (ISO 179-1/1eA, Specimen D) 3.3.6.1 At 23 +/- 2 C 6.1 kJ/m2 min Report Break Type 3.3.6.2 At -40 +/- 2 C 5.1 kJ/m2 min Report Break Type The test specimen must be conditioned for minimum of 6 hou
15、rs 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. 3.3.7 Heat Deflection Temperature 279 C min (ISO 75-1 and ISO 75-2, Specimen D, flatwise, 0.34 +/- 0.1 mm d
16、eflection. 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. 3.3.8 Heat Aging Performance (ISO 188, 150 +/- 50 air changes/h, 1000 h at 180+/- 2 C. After heat aging test specimens
17、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) 3.3.8.1 Impact Strength, Notched Charpy, Change +/- 25% max (Test Method per para 3.3.6.1, specimens to be notched before Heat Aging) 3.3.9 Fl
18、ammability (ISO 3795/SAE J369, Specimen B, smooth surface) Burn Rate 100 mm/minute max 3.4 MATERIAL PROPERTIES REPORT ONLY Values are retained in Ford Materials Database . 3.4.1 Molding Shrinkage (Report method used, sample size and value) After 48 h at 23 +/- 2 C Flow Report Value, % Cross Flow Rep
19、ort Value, % ENGINEERING MATERIAL SPECIFICATION WSS-M4D861-A4 Copyright 2012, Ford Global Technologies, LLC Page 4 of 6 3.4.2 Coefficient of Linear Thermal Expansion (ISO 11359-2, -30 +/- 2 C to 60, 60 to 120 +/- 2 C) Flow Report Value, E-5 mm/mm/ C Cross Flow Report Value, E-5 mm/mm/ C 3.4.3 Flexur
20、al Modulus Report Value ,Mpa (ISO 178, Specimen D, 64 mm support span, 2 mm/minute test speed) 3.4.4 Heat Deflection Temperature Report Value, C min (ISO 75-1 and ISO 75-2, Specimen D, flatwise, 0.34 +/- 0.1 mm deflection. At 0.45 MPa) All specimens dry as molded. If not tested immediately after mol
21、ding, specimens must be stored in a sealed, moisture-proof container filled with silica gel. 3.4.5 Water Absorption Report Value, % (ISO 62, 24 h immersion, Specimen H) 3.4.6 Impact Strength, Notched Izod (ISO 180/1A, Specimen D) 3.4.6.1 At 23 +/- 2 C Report Value, kJ/m2 Report Break Type 3.4.6.2 At
22、 -40 +/- 2 C Report Value, kJ/m2 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
23、. 3.4.7 Poissons Ratio Report Value (ISO 527-1 and ISO 527-2, Specimen A 1 mm/minute test speed) 3.4.8 Supplemental Information The following curves are to be submitted with the data packages: FTIR TGA DSC CLTE Engineering Stress/Strain at 23 C and -40C ENGINEERING MATERIAL SPECIFICATION WSS-M4D861-
24、A4 Copyright 2012, Ford Global Technologies, LLC Page 5 of 6 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
25、 USING METHODS IN SECTION 3.4 Para. Test Typical Value Units 3.4.1 Molding Shrinkage After 48 h at 23 +/- 2 C (For specific method and sample size, contact Materials Engineering Flow Cross Flow 0.23 0.82 % % 3.4.2 Coefficient of Linear Thermal Expansion 30 +/- 2 C to 60 +/- 2 C Flow Cross Flow 60 +/
26、- 2 C to 120 +/- 2 C Flow Cross Flow 2.0 6.1 7.5 9.3 E-5 mm/mm/ C E-5 mm/mm/ C E-5 mm/mm/ C E-5 mm/mm/ C 3.4.3 Flexural Modulus 10.5 MPa 3.4.4 Heat Deflection Temperature at 0.45 Mpa 303 C 3.4.5 Water Absorption 0.53 % 3.4.6 Impact Strength, Notched Izod at 23C 7.9 kJ/m2 3.4.6 Impact Strength, Notch
27、ed Izod at -40C 7.4 kJ/m2 3.4.7 Poissons Ratio 0.4 N/A 4.2 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES PPA-GF35 (ISO 1043/11469) ENGINEERING MATERIAL SPECIFICATION WSS-M4D861-A4 Copyright 2012, Ford Global Technologies, LLC Page 6 of 6 Table 1: Minimum Sample Size Initial Approval New Manufacturi
28、ng 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 3.3.1 Melt Temperature* 3 1 3 1 1 1 3.3.2 Filler Content* 3 1 3 1 1 1 3.3.3 Density 1 3 3 3.3.4 Tensile Strength at Break* 3 5 15
29、 1 5 5 3.3.5 Tensile Modulus 3 10 30 1 10 10 3.3.6 Impact Strength Notched Charpy (per condition)* 3 10 30 1 10 10 3.3.7 Heat Deflection Temperature* 3 2 6 1 2 2 3.3.8 Heat Aging Performance 3.3.8.1 Impact Strength, Notched Charpy, Change 1 10 10 3.3.9 Flammability 1 5 5 3.4.1 Mold Shrinkage 1 5 5 1
30、 5 5 3.4.2 Coefficient of Linear Thermal Expansion (per condition) 1 3 3 3.4.3 Flexural Modulus* 1 10 10 3.4.4 Heat Deflection Temperature* 1 2 2 1 2 2 3.4.5 Water Absorption 1 3 3 3.4.6 Impact Strength, Notched Izod (per condition) 1 10 10 3.4.7 Poissons Ratio 1 2 2 3.4.8 Curves - IR - TGA - DSC - CLTE - Stress/Strain Curves (23 and -40C) 1 1 1 per test * For these requirements the 3 sigma value from the raw data is used to meet the requirements. 5. SUMMARY OF REVISIONS
