Yu-lei Xu, Xing-long Gong, Chao Peng, Ying-qiang Sun, Wan-quan Jiang, Zhong Zhang. Shear Thickening Fluids Based on Additives with Different Concentrations and Molecular Chain Lengths[J]. Chinese Journal of Chemical Physics , 2010, 23(3): 342-346. doi: 10.1088/1674-0068/23/03/342-346
Citation: Yu-lei Xu, Xing-long Gong, Chao Peng, Ying-qiang Sun, Wan-quan Jiang, Zhong Zhang. Shear Thickening Fluids Based on Additives with Different Concentrations and Molecular Chain Lengths[J]. Chinese Journal of Chemical Physics , 2010, 23(3): 342-346. doi: 10.1088/1674-0068/23/03/342-346

Shear Thickening Fluids Based on Additives with Different Concentrations and Molecular Chain Lengths

doi: 10.1088/1674-0068/23/03/342-346
Funds:  This work was supported by the National Basic Re-search Program of China (No.2007CB936800).
  • Received Date: 2009-12-24
  • Shear thickening fluids (STFs) based on additives with different concentrations and molec-ular chain lengths were investigated. STF samples were prepared with silica and additive dispersed in polyethylene glycol (PEG) 400, where three types of additives with different molecular chain lengths of PEG4000, PEG6000, and PEG10000 were used. For PEG10000, different concentrations, including 0, 1%, 3%, and 5%, were selected to study the influences of additive concentrations. Rheological properties of the samples were measured with a rheometer. The results show that the shear thickening effect was significantly enhanced with the increase of the concentration and the molecular chain length of additives. The mech-anism of enhancement was quantitatively explained with the formation of large particles clusters.
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Shear Thickening Fluids Based on Additives with Different Concentrations and Molecular Chain Lengths

doi: 10.1088/1674-0068/23/03/342-346
Funds:  This work was supported by the National Basic Re-search Program of China (No.2007CB936800).

Abstract: Shear thickening fluids (STFs) based on additives with different concentrations and molec-ular chain lengths were investigated. STF samples were prepared with silica and additive dispersed in polyethylene glycol (PEG) 400, where three types of additives with different molecular chain lengths of PEG4000, PEG6000, and PEG10000 were used. For PEG10000, different concentrations, including 0, 1%, 3%, and 5%, were selected to study the influences of additive concentrations. Rheological properties of the samples were measured with a rheometer. The results show that the shear thickening effect was significantly enhanced with the increase of the concentration and the molecular chain length of additives. The mech-anism of enhancement was quantitatively explained with the formation of large particles clusters.

Yu-lei Xu, Xing-long Gong, Chao Peng, Ying-qiang Sun, Wan-quan Jiang, Zhong Zhang. Shear Thickening Fluids Based on Additives with Different Concentrations and Molecular Chain Lengths[J]. Chinese Journal of Chemical Physics , 2010, 23(3): 342-346. doi: 10.1088/1674-0068/23/03/342-346
Citation: Yu-lei Xu, Xing-long Gong, Chao Peng, Ying-qiang Sun, Wan-quan Jiang, Zhong Zhang. Shear Thickening Fluids Based on Additives with Different Concentrations and Molecular Chain Lengths[J]. Chinese Journal of Chemical Physics , 2010, 23(3): 342-346. doi: 10.1088/1674-0068/23/03/342-346

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