Preparation and characterization of shear thickening polymer
WANG Li-jie
YANG Guang
SONG Hai-mei
DONG Meng-guo
ZHANG Yan
YANG Qing-xiang
CHENG Zhi-jun
Abstract：With the use of silica monodisperse Stober with different particle size distribution was prepared,and then with an amino modifier on silica (nSiO2 )surface modification was prepared,and finally nSiO2 particles before and after modification were dispersed in polyethylene glycol (PEG)and prepared in the PEG/nSiO2 composite system,and on the morphology and thermal properties nSiO2 prepared particles were characterized by Huck rheometer and rheological properties of polyethylene glycol/nSiO2 composites were investigated with a transmission electron microscope (TEM),integrated thermal gravimetric analysis (TG).The results showed that:particle diameter nSiO2 prepared in the range of 50~300 nm,a uniform particle distribution,by control-ling the ratio of reactants to the particle diameter was effectively controlled;N-aminoethyl-γ-aminopropyl trim-ethoxy Silane was "riveted"in the nSiO2 particle surface;The rheological properties of the prepared PEG/nSiO2 composite system was related to the particle size and the content of nSiO2 particles,the general rule was that the viscosity increases with the increase of frequency.The particle size effect on shear thickening system was large and the best partide diameter was in the 1 20 nm particle size nearby.
Keywords：shear thickening polymermonodisperse silicareheological propertyStober method
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 43-50 )