文献类型：期刊文献

中文题名：Rheological and drag reduction properties of hydroxypropyl xanthan gum solutions☆

作者：Meng Tian[1];Bo Fang[1];Leiping Jin[1];Yongjun Lu[2];Xiaohui Qiu[2];Hao Jin[1];Kejing Li[1]

机构：[1]Shanghai Key Laboratory of Mutiphase Materials Chemical Engineering, Lab of Chemical Engineering Rheology, Research Center of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China;[2]Langfang Filial of Research Institute of Petroleum Exploration and Development, PetroChina, Langfang 065007, China

年份：2015

期号：9

中文期刊名：中国化学工程学报（英文版）

外文期刊名：Chinese Journal of Chemical Engineering

基金：the National High Technology Research and Development Program of China

语种：英文

外文关键词：Hydroxypropyl xanthan gum;Rheological properties;Drag reduction;Cryo-FESEM

摘要：Hydroxypropyl xanthan gum (HXG) was prepared from xanthan gum (XG) and propylene oxide under alkaline condition. Rheological and drag reduction properties of different concentrations of aqueous HXG and XG solution were studied. The micro-structure network of HXG and XG solutions was investigated by Cryo-FESEM. The re-sults showed that HXG and XG solutions could exhibit shear thinning property. The apparent viscosity of 6 g·L?1 HXG solution was 1.25 times more than that of 6 g·L?1 XG solution. The storage modulus G′and the loss modulus G″of HXG solutions were greater than those of XG solutions, and thixotropic and viscoelastic prop-erties were more significant in HXG solutions. The HXG and XG solutions reduced the pressure drop of straight pipe, and the maximum drag reduction of 1 g·L?1 HXG and XG in smooth tube reached 72.8%and 68.1%, respec-tively. Drag reduction rate was increased as the concentration increased. The HXG solution may become a new polymeric drag reducer.