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Nonisothermal cold crystallization behavior and kinetics of polylactide/clay nanocomposites
作者:Wu, Defeng,Wu, Liang,Wu, Lanfeng,Xu, Bin,Zhang, Yisheng,Zhang, Ming
關鍵字:vinyl siliconegraftelectrorheologyrare earth carboxylatestability
論文來源:期刊
具體來源:Journal of Polymer Science Part B: Polymer Physics
發表時間:2007年
Vinyl modification of nano-SiO2 and preparation of ERF with the structure of bell on side chains of vinyl silicone via chemical graft method between them were achieved. The results of IR and TG indicated that the ratio of vinyl on particles was 17.6% in mass. The electric response of this ER product exhibited a remarkable ER effect. The rare earth element such as Y, Eu behaved better modification effect than Nd. Solution treatment of rare earth caused particles be polarized more intensively, resulting in the array of chain. The ERF presented nice stability, which increased by 45% than that of physical blends of particles and vinyl silicone in 144 h later. The significant increase of both the stability and the shear stress response of this ERF was attributed to the formation of structure of bell on side chains. Therefore, it could provide a new horizon for preparation of excellent ER materials.
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