Effect of Carbon Black on Hysteresis of Rubber Vulcanizates: Equivalence of Surface Area and Loading
Effect of Carbon Black on Hysteresis of Rubber Vulcanizates: Equivalence of Surface Area and Loading
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炭黑对硫化橡胶滞后性的影响：表面积和负载的等效性
DOI：
10.5254/1.3534990
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发表时间：
1976
期刊：
影响因子：
--
通讯作者：
A. Medalia
中科院分区：
文献类型：
--
作者：
J. Caruthers;R. Cohen;A. Medalia
摘要我们建立了炭黑在复合材料中的体积分数乘积(δ)、损耗角正切(tanϕ)和单位体积复合材料的填料-聚合物总界面面积(ψ)之间的经验关系式。这种关系被应用于以SBR-1500、SBR-1712和天然橡胶为基础的硫化胶，这些硫化胶具有不同的混炼程序和不同的变形条件，包括强迫振动非共振动态试验机和固特异-希利摆回弹。这种关联的函数形式在所有情况下都是定性相似的；然而，这种关联的定量方面取决于特定的实验条件。Tanδ是实际感兴趣区域上形变幅度的弱函数。这与滞后能量损失相反，滞后能量损失与振幅的平方成正比。在较宽的振幅、温度和频率范围内的关联式的有效性表明，粘弹性松弛是一种有效的方法。
Abstract We have developed an empirical correlation between the loss tangent (tan δ) and the product of the volume fraction (ϕ) of carbon black in the composite and the total filler-polymer interfacial area per unit volume of composite (ψ). This correlation was applied to vulcanizates based on SBR-1500, SBR-1712, and NR with various compounding procedures and under different deformation conditions, including forced vibration nonresonant dynamic test machines, and the Goodyear-Healey pendulum rebound. The functional form of the correlation was qualitatively similar in all instances ; however, quantitative aspects of the correlation are dependent upon the particular experimental conditions. Tan δ is a weak function of the deformation amplitude over the region of practical interest. This is in contrast to hysteretic energy loss, which is proportional to the square of the amplitude. The validity of the correlation over wide ranges of amplitude, temperature, and frequency indicates that the viscoelastic relaxa...