Details of Molecular Organization during Strain-Induced Crystallization in Natural Rubber/Clay Systems As Revealed by Real-Time Mechano-Optical Behavior

• DOI: 10.1021/acs.macromol.5b00231
• Publication Date: 2015-03-19T14:36:08Z
• Authors: Yurong Liang; Yuanhao Guo; Enmin Wang; Miko Cakmak
• Keywords: Strain (injury)

A real-time spectral birefringence technique was implemented to follow the coupled relationships among birefringence, true stress, and strain behavior of natural rubber vulcanizates containing a series clay concentrations. The dynamics structural evolution also followed by off-line wide-angle X-ray diffraction characterize order orientation at different extension levels. results show that same level rubber/organomodified (NR/OC) nanocomposite with higher OC content exhibits stress birefringence. While optical relationship shows three linear stages during stretching, is nonlinear found always exhibit positively increasing slope strain. XRD OC-content-induced earlier appearance crystallization factor in crystalline domains rubber, as evidenced real time results.