摘要
综述硅微粉原料特点、改性工艺、表面改性方法及改性剂筛选、改性剂用量、改性工艺条件等硅微粉改性技术;重点对硅微粉表面进行改性的有机改性、无机改性、机械力化学改性等方法进行阐述;总结硅烷偶联剂、钛酸酯偶联剂的有机改性机理;概述改性硅微粉在覆铜板、橡胶、涂料、环氧塑封料、电工绝缘材料等领域的应用。提出硅微粉原料质量、改性方法、改性条件等因素均影响硅微粉表面改性效果,可考虑将有机改性与其他改性方法结合进行复合改性。认为为了更好地发挥改性剂的协同作用,应结合下游基料的性质选择或开发新型专用改性剂,并深入研究改性剂的改性机理,这将是未来硅微粉表面改性领域的主要研究方向;硅微粉的应用研究主要集中在以球形硅微粉为原料生产高频覆铜板、高端涂料、高性能胶黏剂、绝缘材料等高技术领域,精细化和功能化将是未来硅微粉应用的主流方向。
In this paper, the raw material characteristics, modification process, surface modification method and selection of modifier, modifier dosage, modification process conditions of silicon micropowders were summarized. The methods of organic modification, inorganic modification and mechanochemical modification on the surface of silicon micropowders were mainly described. The modification mechanism of silane coupling agent and titanate coupling agent was given. The application of modified silicon micropowders in the fields of copper clad plate, rubber, coating, epoxy plastic sealing material and electrical insulating material was summarized. It is indicated that the raw material quality, modification method and modification condition affect the surface modification effect of silicon micropowders, and the combination of organic modification and other modification methods can be considered for composite modification. In addition, in order to give full play to the synergistic effect of modifiers, novel special modifiers should be selected or developed based on the properties of downstream substrates, and the modification mechanism of modifiers should be further studied, which will be the main research direction in the field of the surface modification of silicon micropowders in the future. The application research of silicon micropowders is mainly focused on the production of high-frequency copper cladding plate, high-level coatings, high-performance adhesives, insulation materials and other high-tech fields using spherical silicon micropowders as raw material. Refinement and functionalization of silicon micropowder will be the mainstream direction of application in the future.
作者
钱晨光
谭琦
李春全
郑水林
孙志明
QIAN Chenguang;TAN Qi;LI Chunquan;ZHENG Shuilin;SUN Zhiming(School of Chemistry and Environmental Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China;Zhengzhou Institute of Multipurpose Utilization of Mineral Resources,CAGS,Zhengzhou 450006,China;National Engineering Research Center for Multipurpose Utilization of Nonmetallic Mineral Resources,Zhengzhou 450006,China)
出处
《中国粉体技术》
CAS
CSCD
2022年第5期1-10,共10页
China Powder Science and Technology
基金
中国地质调查局地质调查项目,编号:DD20221698。
关键词
硅微粉
表面改性
硅烷偶联剂
改性机理
silicon micropower
surface modification
silane coupling agent
modification mechanism
