SIMULTANEOUS ACOUSTIC-WAVE PROPAGATION AND DYNAMIC MECHANICAL ANALYSIS OF CURING OF THERMOSET RESINS

被引：14

作者：

CHOW, AW

BELLIN, JL

机构：

[1] Lockheed Palo Alto Research Laboratory, Lockheed Missiles & Space Co, Palo Alto, California

来源：

POLYMER ENGINEERING AND SCIENCE | 1992年 / 32卷 / 03期

关键词：

D O I：

10.1002/pen.760320304

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A study of simultaneous acoustic and rheometric (dynamic mechanical) measurements of the epoxy curing process is undertaken to assess the validity of using acoustic cure-monitoring sensors for process control. Our results demonstrate that the acoustic technique provides a sensitive means for monitoring the cure of neat epoxy over the entire cure cycle. The acoustic modulus calculated from the shear velocity qualitatively tracks the mechanically measured dynamic modulus and correctly ranks the stiffness of two epoxy compositions. When the frequency difference is accounted for, using time-temperature superposition of the dynamic mechanical measurements, quantitative agreement between the acoustic and mechanical moduli for fully cured epoxy resins is also quite good.

引用

页码：182 / 190

页数：9

共 26 条

[1] MECHANICAL RELAXATION STUDIES OF CURE OF EPOXY RESINS .2. ACTIVATION-ENERGY OF GAMMA-PROCESS IN AMINE-CURED EPOXY RESINS [J].