《GMNA-GMP.E-P.162-2006.pdf》由会员分享，可在线阅读，更多相关《GMNA-GMP.E-P.162-2006.pdf（4页珍藏版）》请在三一文库上搜索。
1、 ENGINEERING STANDARDS Material Specification Plastics GMP.E/P.162 Polyolefin Alloy, 1900 MPa Flexural Modulus, UV Stable, Scratch Resistant, Laser Scorable Copyright 2006 General Motors Corporation All Rights Reserved October 2006 Originating Department: North American Engineering Standards Page 1
2、of 4 1 Scope 1.1 Material Description. This specification covers the properties of a 1900 MPa nominal flexural modulus polyolefin alloy, UV stable, scratch resistant, laser scorable, pellet form, injection molding compound. For the purpose of this specification, polyolefin alloy is defined as an all
3、oy of polypropylene plastic and EP(ethylene/propylene) or EPDM (ethylene- propylene-diene monomer) rubber. 1.1.1 Paintability. Approved paint systems that can be used on this material are listed in the GM Approved Paint on Parts Systems (GM APOPS) database. Painted panels shall be tested to GM4350M
4、C0 for full specification approval. 1.1.2 Processability. For full specification approval, material shall be molded in a GM specified tool using specified process parameters to confirm equivalent manufacturability 1.3 Symbol. The material abbreviation according to ISO 11469 is E/P0.050 mm diameter a
5、t 40X magnification Table 2: Compound Properties (Integrally Colored) Properties Standard Unit Value Notched Izod at -30 2C ISO 180 1A, Edgewise impact kJ/m26 minimum Multiaxial Impact Strength at -30 2C ASTM D3763, specimen C, 6.6 m/s impact velocity J at max load 20 minimum All failures must be du
6、ctile Colorfastness to Light, Natural Weathering Color Change Surface Defects GM9538P U/G-TSTL-105 000 TNR Langleys at 102C Not Applicable DE=3.0 max No objectionable defects allowed Colorfastness to Light, Accelerated Color Change Surface Defects Xenon Arc per ISO 105-B06 Condition 5, 300 kJ/m2 and
7、 1240.8 kJ/m2 Note: Separate test panels are required for each exposure Not Applicable DE=3.0 max No objectionable defects allowed Scratch and Mar Resistance as received GMN3943, GM NAAE Interior WPEPGLD Plastic Color Submission Plaque Not Applicable Rating of 1 15 N with 1 mm stylus across all grai
8、ns except Modified Kruz. Scratch and Mar Resistance following 168 h at 102 C. Test after 24 h recovery GMN3943, GM NAAE Interior WPEPGLD Plastic Color Submission Plaque Not Applicable Rating of 2 15 N with 1 mm stylus across all grains except Modified Kruz. Laser Scorable Jenoptiks Evaluation for Re
9、sidual Wall Thickness, Hole Distance Visual Evaluation Not Applicable Laser Scorable Scoreline not visible Fogging SAE J1756, Photometric procedure, bath temp 102C, cooling temp 38C, 6 h test time, 16 h post conditioning time, 60 degree glossmeter Not Applicable 90 gloss units No crystallinity, tran
10、sparent film or discernible droplets ( 0.050 mm diameter at 40Xmagnification Copyright General Motors North America Provided by IHS under license with GM Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 06/23/2008 23:53:34 MDTNo reproduction or networking permitted without license
11、from IHS -,-,- GMP.E/P.162 GM ENGINEERING STANDARDS Copyright 2006 General Motors Corporation All Rights Reserved Page 4 of 4 October 2006 Table 2: Compound Properties (Integrally Colored) Properties Standard Unit Value Flammability GMW3232 mm/minutesNo burn or flame front transmission across the su
12、rface at a rate greater than 100 mm/minutes Colorfastness to Burnt Gas AATCC 23 or ISO 1050G02 light neutral or light gray Not Applicable DE1.5 DYI2.0 3.4 Performance Requirements. Performance Requirements shall be specified on part drawings or in component specifications. 4 Manufacturing Process 4.
13、1 For full approval, material shall be molded in a GM specified tool using specified process parameters to confirm equivalent manufacturability. 5 Rules and Regulations 5.1 All materials supplied to this specification must comply with the requirements of GMW3001, Rules and Regulations for Material S
14、pecifications. 5.2 All materials supplied to this specification must comply with the requirements of GMW3059, Restricted and Reportable Substances for Parts. 6 Approved Sources Engineering qualifications of an approved source is required for this specification. Only sources listed in the GM Material
15、s File (i.e., MATSPC) under this specification number have been qualified by engineering as meeting the requirements of this specification. 7 Notes 7.1 Glossary. WPEPGLD: Finish symbol for the type of plaque used for plastic color development. W stands for color, P stands for Plastic, EP stands for
16、Ethylene Propylene, and GLD is a visual gloss of D. 7.2 Acronyms, Abbreviations, and Symbols. APOPS Approved paint on parts systems DE Delta E (E is the symbol for the total calculated color change) DSC Differential Scanning Calorimeter DYI Delta Yellow Index EP Ethylene/propylene EPDM Ethylene-prop
17、ylene-diene monomer GMNAAEE General Motors North America Appearance Engineering MATSPC Material Specifications Database System MPa Mega Pascal TNR Temperature Normalized Radiation TPO Thermoplastic Olefin U/G TSTL Under Glass Tracking Sealed Temperature Limited VTS Vehicle Technical Specification CT
18、S Component Technical Specification 8 Coding System This material specification shall be referenced in other documents, drawings, VTS, CTS, etc. as follows: Material per GMP.E/P.162. 9 Release and Revisions 9.1 Release. This standard originated in May 2006. It was first approved by Materials Enginee
19、ring in October 2006. It was first published in October 2006. Copyright General Motors North America Provided by IHS under license with GM Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 06/23/2008 23:53:34 MDTNo reproduction or networking permitted without license from IHS -,-,-