DETERMINATION OF PHYSICAL AND STRUCTURAL PARAMETERS BY DMA AND DSC - APPLICATION TO AN EPOXIDIC FORMULATION

被引：12

作者：

FRAGA, F ^{[1
]}

SALGADO, T ^{[1
]}

ANON, JAR ^{[1
]}

REGUEIRA, LN ^{[1
]}

机构：

[1] UNIV SANTIAGO,DEPT FIS APLICADA,GRP INVEST TERBIPROMAT,E-15706 SANTIAGO,SPAIN

来源：

JOURNAL OF THERMAL ANALYSIS | 1994年 / 41卷 / 06期

关键词：

ACTIVATION ENERGY; DMA; DSC; LOSS MODULUS; POLYMERS; STORAGE MODULUS;

D O I：

10.1007/BF02549952

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Mechanical behaviour play an important role in the election of an epoxidic formulation of well determined properties as it has a marked influence on both structural and external factors. Temperature and time strongly act on polymers properties owing to their viscoelastic nature. Knowledge of the dynamic moduli and properties of polymeric materials is indispensable for the design of this materials. At the same time, the influence of the temperature on polymers behaviour may be studied once the activation energy is known. In this paper the different dynamic moduli and activation energy are measured using a Perkin Elmer DMA 7. The relationships between the dynamic mechanical properties and the molecular weight of the polymers make possible the calculation of the molecular weight. Results reasonably agree with literature values.

引用

页码：1543 / 1550

页数：8

共 5 条

[1] ABUIN SP, 1992, PERFIL DINAMOMECANIC, V4
[2] CHARLES DW, 1990, J POLYM SCI, V41, P2539
[3] RELATION BETWEEN NETWORK STRUCTURE AND DYNAMIC MECHANICAL PROPERTIES OF A TYPICAL AMINE-CURED EPOXY POLYMER
MURAYAMA, T
BELL, JP
[J]. JOURNAL OF POLYMER SCIENCE PART A-2-POLYMER PHYSICS, 1970, 8 (03) : 437 - &
[4] TURI EA, 1981, R B THERMAL CHARACTE, P439
[5] THERMAL-DEGRADATION OF EPOXY SILICA COMPOSITES MONITORED VIA DYNAMIC MECHANICAL THERMAL-ANALYSIS
UNSWORTH, J
LI, Y
[J]. JOURNAL OF APPLIED POLYMER SCIENCE, 1992, 46 (08) : 1375 - 1379

← 1 →