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Standard Test Method for Glass Transition Temperature (DMA Tg) of Polymer Matrix Composites by Dynamic Mechanical Analysis (DMA) (Includes all amendments And changes 9/21/2015).
Automaticky přeložený název:
Standardní zkušební metoda pro teplotu skelného přechodu (Tg) DMA polymerní matrice kompozitů dynamické mechanické analýzy (DMA)
NORMA vydána dne 15.12.2007
Označení normy: ASTM D7028-07e1
Poznámka: NEPLATNÁ
Datum vydání normy: 15.12.2007
Kód zboží: NS-37343
Počet stran: 13
Přibližná hmotnost: 39 g (0.09 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
composite, DMA, dynamic mechanical analysis, glass transition temperature, polymer matrix composite, Dynamic mechanical analysis (DMA), Glass transition, Glass transition temperature, Polymer matrix composite materials, ICS Number Code 83.120 (Reinforced plastics)
Significance and Use | ||||||||||||||||||||||
This test method is designed to determine the glass transition temperature of continuous fiber reinforced polymer composites using the DMA method. The DMA Tg value is frequently used to indicate the upper use temperature of composite materials, as well as for quality control of composite materials. |
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1. Scope | ||||||||||||||||||||||
1.1 This test method covers the procedure for the determination of the dry or wet (moisture conditioned) glass transition temperature (Tg) of polymer matrix composites containing high-modulus, 20 GPa (> 3 × 106 psi), fibers using a dynamic mechanical analyzer (DMA) under flexural oscillation mode, which is a specific subset of the Dynamic Mechanical Analysis (DMA) method. 1.2 The glass transition temperature is dependent upon the physical property measured, the type of measuring apparatus and the experimental parameters used. The glass transition temperature determined by this test method (referred to as “DMA Tg”) may not be the same as that reported by other measurement techniques on the same test specimen. 1.3 This test method is primarily intended for polymer matrix composites reinforced by continuous, oriented, high-modulus fibers. Other materials, such as neat resin, may require non-standard deviations from this test method to achieve meaningful results. 1.4 The values stated in SI units are standard. The values given in parentheses are non-standard mathematical conversions to common units that are provided for information only. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||||||||||||||||||||||
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