1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 0 2014 06 12 Released Y. Merritt, NA Controlled document at www.MATS Copyright 2014, Ford Global Technologies, LLC Page 1 of 5 POLYETHYLENE (PE), MOLDING COMPOUND, WRS-M4D145-B2 HIGH DENSITY, 100% PCR RESIN, INTERIOR 1. SCOPE The materia
2、l defined by this specification is a polyethylene molding compound with high density and low melt flow rate. The material is 100% Post Consumer Recycled (PCR). 2. APPLICATION This specification was released originally for materials used for Instrument Panel ducts. 2.1 LIMITATIONS This material shoul
3、d not be used for fuel tank 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, identifie
4、d 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 required for each test. 3.1.2 The use of r
5、egrind 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 must meet the requirements outlined in WSS-M99P2222-D1/Latest, Performance, and Vehicle Interior Environment Qualit
6、y 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 specifications, WSS-M15P4-F/Latest. 3.2 SAMPLE PREPARATION Unless otherwise specified all tests shall be carried
7、out on injection molded, one-end gated test specimens. The test specimens A and D shall be molded using molding conditions defined in ISO 294. No annealing is allowed. See Table 1 for the number of samples required. ENGINEERING MATERIAL SPECIFICATION WRS-M4D145-B2 Copyright 2014, Ford Global Technol
8、ogies, LLC Page 2 of 5 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 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
9、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 MATERIAL PROPERTIES 3.3.1 Melt Flow Rate 0.6 g/10 minutes max (ISO 1133 190 C, 2.16kg) 3.3.2 Density 0.95 - 0.98 g/cm3 (ISO 1183, Method A) 3.3.3
10、 Tensile Strength at Yield 20 MPa min (ISO 527-1 and ISO 527-2, Specimen A, 50 mm/minute test speed) 3.3.4 Elongation at Yield 2.0 % min (ISO 527-1 & ISO 527-2, Specimen A, 50 mm/minute test speed) 3.3.5 Tensile Modulus 0.7 GPa min (ISO 527-1 and ISO 527-2, Specimen A, 1 mm/minute test speed) 3.3.6
11、Flexural Modulus 0.7 GPa min (ISO 178, Specimen D, 64 mm support span, 2 mm/minute test speed) 3.3.7 Impact Strength, Notched Charpy (ISO 179-1/1eA, Specimen D) 3.3.7.1 At 23 +/- 2 C 11 kJ/m2 min Report Break Type 3.3.7.2 At -40 +/- 2 C 6 kJ/m2 min Report Break Type The test specimen must be conditi
12、oned for minimum of 6 hours at the above specified temperature prior to impact test. Low temperautre testing shall be done within the cold chamber, if not possible, test may be conducted outside, but within 5 seconds. 3.3.8 Heat Deflection Temperature 32 C min (ISO 75-1 and ISO 75-2, Specimen D, fla
13、twise, 0.34 +/- 0.1 mm deflection. At 1.80 MPa) ENGINEERING MATERIAL SPECIFICATION WRS-M4D145-B2 Copyright 2014, Ford Global Technologies, LLC Page 3 of 5 3.3.9 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
14、 desiccator for 3 - 5 h at 23 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.3.9.1 Tensile Strength at Yield, Change +/- 25% max (Test Method per para 3.3.3) 3.3.9.2 Impact Strength, Notched Charpy, Change +/- 25% max (Test Method per para 3.3
15、.7.1, specimens to be notched before Heat Aging) 3.3.10 Odor (FLTM BO 131-03, Variant C, Specimen G) Condition 1 Rating 3 max Condition 2 Rating 3 max Condition 3 Rating 3 max 3.3.11 Fogging Photometric (SAE J1756, Specimen F, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 16 h) Fo
16、g Number 70 min Formation of clear film, droplets or crystals is cause for rejection. 3.3.12 Flammability (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 m
17、ethod used, sample size and value) After 48 h at 23 +/- 2 C Flow Report Value % Cross Flow Report Value % 3.4.2 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 ENGINEERING MATERIAL SPECIFICATION WR
18、S-M4D145-B2 Copyright 2014, Ford Global Technologies, LLC Page 4 of 5 3.4.3 Poissons Ratio Report Ratio (ISO 527-1 and ISO 527-2, Specimen A, 1 mm/minute test speed) 3.4.4 Supplemental Information The following curves are to be submitted with the data packages: FTIR TGA DSC CLTE Engineering Stress/S
19、train at 23 C, -30 C and 80 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 3.4
20、Para. Test Typical Value Units 3.4.1 Molding Shrinkage After 48 h at 23 +/- 2 C Flow Cross Flow 2.5 1.6 % % 3.4.2 Coefficient of Linear Thermal Expansion Flow Cross Flow 12.9 16.5 E-5 mm/mm/ C E-5 mm/mm/ C 3.4.3 Poissons Ratio 0.45 N/A 4.2 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES PE (ISO 1043/
21、11469) ENGINEERING MATERIAL SPECIFICATION WRS-M4D145-B2 Copyright 2014, Ford Global Technologies, LLC Page 5 of 5 Table 1: Minimum Sample Size Initial Approval and New Manufacturing Location Approval for Recycled Materials New Manufacturing Location for Previously Approved Virgin Materials Para. Tes
22、t Minimum Lots Specimens per Lot Total Test Specimens Lots Specimens per lot Total Test Specimens 3.1.4 WSS-M99P2222-D1/Latest Total Carbon, Hazardous Substances, Formaldehyde, Acraldehyde, Acetaldehyde (See below for Odor and Fogging) 1 1 1 per test 3.3.1 Melt Flow Rate* 3 1 3 1 1 1 3.3.2 Density 1
23、 3 3 1 3 3 3.3.3 Tensile Strength at Yield* 3 5 15 1 5 5 3.3.4 Elongation at Yield* 3 5 15 1 5 5 3.3.5 Tensile Modulus 1 10 10 3.3.6 Flexural Modulus* 3 10 30 1 10 10 3.3.7 Impact Strength Notched Charpy (per condition)* 3 10 30 1 10 10 3.3.8 Heat Deflection Temperature* 3 2 6 1 2 2 3.3.9 Heat Aging
24、 Performance 3.3.9.1 Tensile Strength at Yield, Change 1 5 5 3.3.9.2 Impact Strength, Notched Charpy, Change 1 10 10 3.3.10 Odor 1 9 9 3.3.11 Fogging Photometric 1 3 3 3.3.12 Flammability 1 5 5 3.4.1 Mold Shrinkage 1 5 5 1 5 5 3.4.2 Coefficient of Linear Thermal Expansion (per condition) 1 3 3 3.4.3 Impact Strength, Notched Izod (per condition) 1 10 10 3.4.4 Poissons Ratio 1 2 2 3.4.5 Curves - IR - TGA - DSC - CLTE - Stress/Strain Curves at 23C 1 1 1 per test * For these requirements the 3 sigma value from the raw data is used to meet the requirements.
