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美國布魯克海文儀器公司>公司動態>90Plus測量應用案例-2016-2

公司動態

90Plus測量應用案例-2016-2

閱讀:218          發布時間:2016-4-19
 文獻名: Influence of immobilized rubber on the non-linear viscoelasticity of filled silicone rubber with different interfacial interaction of silica
 
作者: Hanmei Zhou,a   Lixian Song,ab   Ai Lu,ab   Tao Jiang,a   Fengmei Yub and    Xiaochuan Wangab
aMaterial Science and Engineering College, Southwest University of Science and Technology, Mianyang 621010, China 
bInstitute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China
 
摘要:For a better understanding of the influence of the immobilized rubber on the non-linear viscoelasticity of filled rubber, spherical silica without intensive filler–filler interactions and with weak silica–rubber interactions was introduced in order to compare the non-linear viscoelasticity of the commercial silica filled rubber. It was observed that the amplitude of Payne effect is related to the interfacial interaction characterized by the content of bound rubber. An interesting phenomenon was produced in the effect of temperature on the Payne effect for spherical silica filled rubber that the amplitude of Payne effect decreases with the temperature below 253 K but the storage modulus increases with the temperature above 253 K which performs the feature of entropic elasticity as pure rubber. The activation energy of the unstable chains can be also divided into two sections in the temperature range which is related to the critical value of immobilized rubber to influence the Payne effect. The results reveal that the number of immobilized rubber reduces with the temperature and it has a critical value to affect the Payne effect which is verified by Maier–Göritz model. The introduction of this kind of spherical silica provides an experimental method to study the non-linear viscoelasticity elaboray.
 

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