专利视域下陶瓷膜技术创新现状、历程与热点

Development status,innovation process and hotspot of ceramic membrane technology innovation from the perspective of patent

陶瓷膜具有优良的热稳定性和化学稳定性,是过程工业理想的分离膜材料.本文以全球陶瓷膜领域专利为研究对象,采用专利信息计量和主路径分析的方法研究陶瓷膜技术的创新现状、历程和当前热点,以期为我国陶瓷膜领域的技术创新提供参考.研究表明,陶瓷膜技术正处于发展期,中、日、美是当前陶瓷膜技术创新最活跃的国家.专利引文网络的主路径分析显示,1990年以前陶瓷膜领域主要围绕膜制备基础技术创新;随着陶瓷膜制备技术的日益成熟,1991~2005年陶瓷膜的分离应用成为创新的重点;2007年之后科研人员开始面向应用的高性能陶瓷膜制备创新.当前,创新热点主要集中在围绕低碳目标的陶瓷膜材料应用,基于新型二维材料的陶瓷膜制备与应用,以及高精度陶瓷膜材料的制备与应用等.

Ceramic membranes are known for their excellent thermal and chemical stability and have been considered as an ideal separation membrane for the process industry.The patents in the field of ceramic membrane were researched by the methods of patentometrics and main path analysis to reveal the development status and innovation process.The research shows that the current ceramic membrane technology is in a period of rapid development.China,Japan and the United States are currently the most active countries in the global ceramic membrane technology innovation.The main path analysis of the patent citation network shows that before 1990 the innovation in the field of ceramic membrane mainly focused on the basic technological of membrane preparation.With the development of preparation technology,the separation and application of ceramic membrane became the focus of innovation from 1991 to 2005.After 2007,researchers began to innovate high-performance ceramic membrane for applications.At present,the hotspots of technological innovation in the field of ceramic membrane mainly focus on the application of ceramic membrane target low-carbon,preparation of ceramic membrane based on new two-dimensional materials and the application of ceramic membrane materials with high separation accuracy.