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首页> 外文期刊>Journal of Applied Polymer Science >Linear and Nonlinear viscoelasticity of carbon black filled elastomers: Use of complementary rheological characterizations
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Linear and Nonlinear viscoelasticity of carbon black filled elastomers: Use of complementary rheological characterizations

机译：炭黑填充弹性体的线性和非线性粘弹性：互补流变学特性的使用

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摘要

The viscoelastic properties of filled elastomers (uncured styrene-butadiene rubber filled with carbon black) were investigated with two shear rheometers specially designed for the characterization of complex polymer systems. A torsional strain-controlled rheometer [i.e., a rubber process analyzer (RPA)] was used in dynamic and relaxation modes for measuring the storage and loss moduli and the relaxation modulus. A stress-controlled sliding cylinder rheometer (SCR) was operated for the measurement of the creep compliance. Both devices could be operated on a large scale of imposed strains or stresses ranging from the linear viscoelastic regime to the nonlinear viscoelastic regime, and they were complementary in supporting the original viscoelastic behavior of filled elastomers for a wide experimental time range. Moreover, when the measuring ranges of the two apparatus overlapped, a cross-check of the material functions obtained with the RPA or SCR could be successfully carried out. This validation of the data was performed not only in the linear domain of viscoelasticity, with the classical approach of a generalized Maxwell model, but also in the nonlinear domain, with a viscoelastic integral model of type K-BKZ. (C) 2002 Wiley Periodicals, Inc. [References: 21]
机译：用两个专门设计用于表征复杂聚合物系统的剪切流变仪研究了填充弹性体（未固化的丁苯橡胶填充炭黑）的粘弹性能。在动态和松弛模式下使用扭转应变控制的流变仪[即，橡胶过程分析仪（RPA）]，以测量储能模量和损耗模量以及松弛模量。使用应力控制的滑动圆柱流变仪（SCR）来测量蠕变柔度。两种设备都可以在从线性粘弹性状态到非线性粘弹性状态的大范围外加应变或应力下运行，并且在广泛的实验时间范围内，它们在支持填充弹性体的原始粘弹性行为方面具有互补性。此外，当两个设备的测量范围重叠时，可以成功地对使用RPA或SCR获得的材料功能进行交叉检查。数据的验证不仅使用广义Maxwell模型的经典方法在粘弹性的线性域中进行，而且还使用K-BKZ型粘弹性积分模型在非线性域中进行。 （C）2002 Wiley Periodicals，Inc. [参考：21]

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