Preparation of functional barium sulfate and research progress in its application
CHEN Huan-zhang1,2, ZHANG Jie1, SUN Zhao-li1
1. College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China; 2. Hebei Provincial Key Laboratory of Molecular Chemistry for Drug, Shijiazhuang 050018, China
Abstract: This paper introduces several common preparation methods for barium sulfate,such as direct precipitation method,EDTA complex method,ultrasonic-assisted precipitation method,microreactor method,surfactant method and green synthesis method,and discusses the advantages and disadvantages of various preparation methods.Common problems happened in the preparation process,such as serious agglomeration phenomenon,larger particle diameter and irregular morphology,are concluded.Current research trend tends to improve the existing production process,raise product quality,reduce energy consumption during the production and achieve mass production.In addition,this paper describes the applications of barium sulfate in coatings,plastics etc.In the applications,the synthesis of composite material by adding barium sulfate into polymer is a hot topic.It is pointed out that barium sulfate with small particle size and regular morphology is the key for composite material to obtain excellent properties.Finally,this paper analyzes the mechanism and process of various preparation methods for barium sulfate,proposes the problems and concerning improvement methods for each method,and gives the development direction about preparation and application of barium sulfate in the future.
陈焕章, 张洁, 孙朝利. 功能性硫酸钡的制备及应用研究进展[J]. 现代化工, 2020, 40(3): 72-76,81.
CHEN Huan-zhang, ZHANG Jie, SUN Zhao-li. Preparation of functional barium sulfate and research progress in its application. Modern Chemical Industry, 2020, 40(3): 72-76,81.
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