1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 02 2014 01 16 Revised See Summary of Revisions G. Eaton, NA 2013 07 30 Revised Editorial changes to Heat Deflection and Vicat Softening G. Eaton, NA 2013 02 19 Released G. Eaton, S. Draheim, NA Controlled document at www.MATS Copyright 2
2、014, Ford Global Technologies, LLC Page 1 of 7 ACRYLIC (PMMA), OPTICAL GRADE, EXTERIOR WSS-M4D776-B1 ACRYLIC (PMMA), OPTICAL GRADE, INTERIOR WSS-M4D776-B2 ACRYLIC (PMMA), OPTICAL GRADE, HIGH HEAT, EXTERIOR WSS-M4D776-B3 ACRYLIC (PMMA), OPTICAL GRADE, HIGH HEAT, INTERIOR WSS-M4D776-B4 ACRYLIC (PMMA),
3、 TRIM GRADE, EXTERIOR WSS-M4D776-B5 1. SCOPE The materials defined by these specifications are a thermoplastic acrylic molding compound based on polymethylmethacrylate (PMMA). 2. APPLICATION These specifications were released originally for materials used for lenses of rear, front and interior lamps
4、, as well as exterior trims. 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). Note: Many 4D resin specifications prior to 2011, identified certain req
5、uirements 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. 3.1.1 This specification is bas
6、ed 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 technically feasible and following all materials and PV testing required by Ford Materials Engine
7、ering. 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 approved to WSS-M4D776-B2 and B4 must meet the requirements outlined in WSS-M99P2222-D1/Latest, Performance, Vehicle Int
8、erior 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 specifications: Exterior: WSS-M98P13-C/latest Lighting: WSK-M98P10-A/latest Interior: WSS
9、-M15P4-F/latest. ENGINEERING MATERIAL SPECIFICATION WSS-M4D776-B1/B2/B3/B4/B5 Copyright 2014, Ford Global Technologies, LLC Page 2 of 7 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
10、 be molded using molding conditions defined in (ISO 8257-2). No annealing is allowed. See Tables 1 and 2 for the number of samples required. 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) Spec
11、imen 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 mm x 150 mm, min 3.3 APPEARANCE 3.3.1 Weathering
12、 Resistance (B1, B3, and B5 only) 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
13、mold, ISO 105-A02 / AATCC Evaluation Procedure 1) For color durability submissions, test all program colors. 3.3.2 1 and 2 year Florida (B1, B3, and B5 only) Rating 4 min Initial Qualification for new resin technology (SAE J1976, 5 south, direct weathering inland, Specimen C from smooth polished mol
14、d, 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 gloss or chalking will be allowed provided an acceptable appearance
15、 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 world outdoor exposure results for final approval. 3.3.3 Weather
16、ing Resistance (Interior MIC Visible) Rating 4 min (FLTM BO 116-01, 977.6 kJ/m2 exposure Specimen C from smooth polished mold, ISO 105-A02 / AATCC Evaluation Procedure 1) After exposure the material shall show no fading or color change in excess of the specified AATCC rating. In addition, there shal
17、l be no cracking, crazing or other deterioration. Use regional choice for initial approval and report the color house used. See Table 2 for additional color durability submission ENGINEERING MATERIAL SPECIFICATION WSS-M4D776-B1/B2/B3/B4/B5 Copyright 2014, Ford Global Technologies, LLC Page 3 of 7 3.
18、3.4 Resistance to Scratch (B5, Colored only) (FLTM BO 162-01, Specimen I, 7.0N, 6.0N, 4.5N, 3.0N, and 2.0N) 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 or high gloss samples in agreement with
19、Materials Engineering. Details regarding color house, let down ratio, colors, grain, etc can be found in the approval package. 3.3.5 Resistance to Mar (B5, Colored, A Flow Cross Flow 6.5 7.2 E-5 mm/mm/C E-5 mm/mm/C 3.5.2 Molding Shrinkage After 48 h at 23 +/- 2 C (For specific method and sample size
20、, contact Materials Engineering) Flow Cross Flow 0.4 0.5 % % 3.5.3.1 Impact Strength, Notched Charpy; At 23 +/- 2 C 0.05 kJ/m2 3.5.3.2 Impact Strength, Notched Charpy At -40 +/- 2 C 0.04 kJ/m2 3.5.4 Poissons Ratio 0.4 N/A ENGINEERING MATERIAL SPECIFICATION WSS-M4D776-B1/B2/B3/B4/B5 Copyright 2014, F
21、ord Global Technologies, LLC Page 6 of 7 4.1 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES PMMA (ISO 1043) Table 1: Minimum Sample Size Initial Approval New Manufacturing Location for Previously Approved Material Test Minimum Lots Specimens per lot Total Test Specimens Lots Specimens per lot Total
22、Test Specimens 3.1 WSS-M99P1111-A 3.1.3 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-M98P13-C/latest WSK-M98P10-A/latest WSS-M15P4-F/latest Reference the appropriate performance specification 3.3
23、.1 Weathering Resistance (B1, B3, and B5 only) 1 1 1 3.3.2 1 and 2 year Florida (B1, B3, and B5 only) 1 1 1 3.3.3 Weathering Resistance (Interior MIC Visible) 1 1 1 3.3.4 Resistance to Scratch (B5, colored only) 1 3 3 3.3.5 Resistance to Mar (B5, colored, A & B gloss finish only) 1 3 3 3.4.1 Melt Fl
24、ow Rate* 3 1 3 1 1 1 3.4.2 Density 1 3 3 3.4.3 Tensile Strength at Break* 3 5 15 1 5 5 3.4.4 Elongation at Break* 3 5 15 1 5 5 3.4.5 Tensile Modulus 1 10 10 3.4.6 Flexural Modulus* 3 10 30 1 10 10 3.4.7 Heat Deflection Temperature* 3 2 6 1 2 2 3.4.8 Vicat Softening Temperature* 3 2 6 1 2 2 3.4.9 Hea
25、t Aged Properties 3.4.9.1 Tensile Strength at Yield, Change 1 5 5 3.4.10 Odor (B2 and B4 only ) 1 9 9 3.4.11 Fogging Photometric (B2 and B4 only ) 1 3 3 3.4.12 Flammability (B2 and B4 only ) 1 5 5 3.4.13 Luminous Transmittance (B1 B4 only) 1 3 3 3.4.14 Haze (B1 B4 only) 1 3 3 3.4.15 Yellowness Index
26、 (B1 B4 only) 1 3 3 3.5.1 Coefficient of Linear Thermal Expansion (per condition) 1 3 3 3.5.2 Mold Shrinkage 1 5 5 3.5.3 Impact Strength, Notched Charpy (per condition) 1 10 10 3.5.4 Poissons Ratio 1 2 2 3.5.5 Curves - IR / TGA / DSC / CLTE 1 1 1 per test * For these requirements the 3 sigma value f
27、rom the raw data is used to meet the requirements ENGINEERING MATERIAL SPECIFICATION WSS-M4D776-B1/B2/B3/B4/B5 Copyright 2014, Ford Global Technologies, LLC Page 7 of 7 Table 2: Color Property Testing Para. Test Lots Specimens per Lot Total Test Specimens Color Test Direction 3.3.1 Weathering Resist
28、ance (B1, B3, and B5 only) 1 1 1 Every color 3.3.3 Weathering Resistance (Interior MIC Visible) 1 1 1 Every color 3.3.4 Scratch Resistance (B5, Colored only) 1 3 3 As directed by Materials Engineering 3.4.3 Tensile Strength at Break 1 5 5 As directed by Materials Engineering 3.4.6 Flexural Modulus 1
29、 10 10 As directed by Materials Engineering 3.4.10 Odor (B2 and B4 only ) 1 9 9 As directed by Materials Engineering 3.4.14 Flammability (B2 and B4 only ) 1 5 5 Every color 5. SUMMARY OF REVISIONS 2014 01 16 Corrected precondition steps for Heat Deflection 3.4.7 and Vicat Softening 3.4.8 2013 07 30 Added missing preconditioning step to Heat Deflection 3.4.7. Added directions for drying to Vicat Softening 3.4.8.
