ASTM-D7028 2007

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D7028-07e1 Standard Test Method for Glass Transition Temperature (DMA Tg) of Polymer Matrix Composites by Dynamic Mechanical Analysis (DMA)

Published By	Publication Date	Number of Pages
ASTM	2007	14

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Description

ASTM D7028-07e1

Historical Standard: Standard Test Method for Glass Transition Temperature (DMA Tg) of Polymer Matrix Composites by Dynamic Mechanical Analysis (DMA)

ASTM D7028

Scope

1.1 This test method covers the procedure for the determination of the dry or wet (moisture conditioned) glass transition temperature (T_g) 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.

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 Code

ICS Number Code 83.120 (Reinforced plastics)

DOI: 10.1520/D7028-07E01

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Summary of Test Method Significance and Use Interferences Apparatus Sampling and Test Specimens
3	Calibration Conditioning Procedure Interpretation of Results Validation
4	Report Precision and Bias FIG. 1
5	Keywords TABLE 1
6	X1. EXAMPLES FOR INTERPRETATION OF RESULTS X1.1 X1.2 X1.3 TABLE 2
7	FIG. X1.1
8	FIG. X1.2
9	FIG. X1.3
10	FIG. X1.4
11	FIG. X1.5
12	FIG. X1.6
13	FIG. X1.7
14	FIG. X1.8

Additional information

Standard Title	D7028-07e1 Standard Test Method for Glass Transition Temperature (DMA Tg) of Polymer Matrix Composites by Dynamic Mechanical Analysis (DMA)
Published Code	ASTM
Publication Date	2007
Pages Count	14