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Type: Artigo de periódico
Title: Comportamento dinâmico-mecânico e relaxações em polímeros e blendas poliméricas
Title Alternative: Dynamic mechanical behavior and relaxations in polymers and polymeric blends
Author: Cassu, Silvana Navarro
Felisberti, Maria Isabel
Abstract: Dynamic mechanical analysis (DMA) is widely used in materials characterization. In this work, we briefly introduce the main concepts related to this technique such as, linear and non-linear viscoelasticity, relaxation time, response of material when it is submitted to a sinusoidal or other periodic stress. Moreover, the main applications of this technique in polymers and polymer blends are also presented. The discussion includes: phase behavior, crystallization; spectrum of relaxation as a function of frequency or temperature; correlation between the material damping and its acoustic and mechanical properties.
Subject: DMA
polymer blends
Editor: Sociedade Brasileira de Química
Citation: Química Nova. Sociedade Brasileira de Química, v. 28, n. 2, p. 255-263, 2005.
Rights: aberto
Identifier DOI: 10.1590/S0100-40422005000200017
Date Issue: 1-Mar-2005
Appears in Collections:Unicamp - Artigos e Outros Documentos

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