GMW GMW15185-2013 Polyolefin Alloy - 1000 MPa Flexural Modulus High Flow Issue 2 English.pdf
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1、 WORLDWIDE ENGINEERING STANDARDS Material Specification GMW15185 Polyolefin Alloy - 1000 MPa Flexural Modulus, High Flow Copyright 2013 General Motors Company All Rights Reserved August 2013 Page 1 of 4 1 Scope 1.1 Material Description. This standard covers the properties of a 1000 MPa nominal flexu
2、ral modulus polyolefin alloy, high flow, pellet form, injection molding compound. For the purpose of this standard, polyolefin alloy is defined as an alloy of polypropylene plastic and Ethylene/Propylene (EP) or Ethylene/Propylene-Diene Monomer (EPDM) rubber. 1.1.1 Additional Characteristics. Materi
3、als certified to this material specification may have additional characteristics, e.g., paintable, elastomer modified, etc. Possible additional characteristics are defined in GMW3013. 1.2 Symbols. The material abbreviation according to ISO 11469 is PP+EPDM-M1313 Multiaxial Impact Strength at 23 C 2
4、C ASTM D3763, specimen C, 2.2 m/s impact velocity J at maximum load 15 All failures must be ductile Multiaxial Impact Strength at -30 C 2 C ASTM D3763, specimen C, 2.2 m/s impact velocity J at maximum load 15 All failures must be ductile Multiaxial Impact Strength at +23 C 2 C ISO 6603-2/40/20/C/4.4
5、. Sample to be either square 60 mm x 60 mm minimum, or circle 60 mm diameter minimum. Sample thickness to be 2 mm 0.1 mm. J at maximum load Report Energy at Maximum Force and Type of Failure Multiaxial Impact Strength at -30 C 2 C (or lowest temperature where only type YD or YS failures are observed
6、) ISO 6603-2/40/20/C/4.4. Sample to be either square 60 mm x 60 mm minimum, or circle 60 mm diameter minimum. Sample thickness to be 2 mm 0.1 mm. J at maximum load Report Energy at Maximum Force and Type of Failure Report Test Temperature Notched Charpy Impact at 23 C ISO 179/1eA kJ/m2 Report Result
7、s Notched Charpy Impact at -30 C ISO 179/1eA kJ/m2 Report Results Vicat Softening Temperature (VST)/A/50 ISO 306 C Report Results Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,
8、-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15185 Copyright 2013 General Motors Company All Rights Reserved August 2013 Page 3 of 4 Properties Standard Unit Values Heat Deflection Temperature (HDT) Method A ISO 75-1, ISO 75-2, ISO 75-3 C 50 Coefficient of Linear Thermal Expansion (CLTE), longitudinal,
9、23 C to 80 C for ISO 11359, -30 C to 100 C for ASTM E 831 and ASTM E 228 ISO 11359 or ASTM E831 or ASTM E228 1/K 55 x 10-6 Shrink, 48 h after molding ISO 294, plaque size (4 in x 6 in x 0.125 in) % 0.525 to 0.675 Note 2 Shrink, After Bake, 1 h at 82 C ISO 294, plaque size (4 in x 6 in x 0.125 in) %
10、0.625 to 0.775 Note 2 Shrink, After Bake, 1 h at 121 C ISO 294, plaque size (4 in x 6 in x 0.125 in) % 0.725 to 0.875 Note 2 Note 1: Can vary by region as long as shrink is not affected. Note 2: Determined on test plaques and manufactured at defined conditions. Not tooling specification data. YD: Yi
11、elding (zero slope at maximum force) followed by deep drawing. YS: Yielding (zero slope at maximum force) followed by (at least partially) stable cracking. 4 Manufacturing Process Not applicable. 5 Rules and Regulations 5.1 Legal Regulations. All materials must satisfy applicable laws, rules, regula
12、tions and recommendations valid in the country of usage. 5.2 Language. In the event of conflict between the English and domestic language, the English language shall take precedence. 5.3 Inspection and Rejection. Samples of components or materials released to a GM material specification shall be tes
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