公开(公告)号：US20240400458A1

公开(公告)日：2024-12-05

申请号：US18802061

申请日：2024-08-13

Applicant: HUNAN INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： YONGBING YUAN ,  XINYU TANG ,  JUNKANG SHI ,  CONGSHAN ZHOU ,  SHUQIN ZHENG ,  LIJUN LI ,  AN LI ,  JUNDONG XU

IPC: C04B33/04 ,  C04B33/13 ,  C08K3/34

Abstract: A method for preparing modified calcined kaolin particles with surface amphiphilicity. The method includes the steps of drying and sieving the calcined kaolin particles, adding ethanol, and stirring to obtain a suspension A, preparing an ethanol solution of a vinyl silane coupling agent, and stirring for a period of time at a certain temperature to obtain a solution B, dripping the solution B into the solution A, and stirring for a period of time at a certain temperature to obtain a suspension C, reducing the temperature of the suspension C, introducing nitrogen, adding a certain amount of sulfhydryl compound, stirring for a period of time at a certain temperature to obtain a suspension D, filtering, washing and drying to obtain the modified calcined kaolin particles.