Li Zhongjin, professor: born in 1946, graduated from the Department of Chemistry, Peking University in 1970. Doctoral supervisor of the School of Chemistry and Chemical Engineering of Shaanxi University of Science and Technology (natural polymer material modification and environmental science direction), professor and subject leader of the School of Chemistry and Chemical Engineering, director of the Institute of Applied Chemistry, director of the Inorganic and Analytical Chemistry Teaching and Research Office, Shaanxi Province Deputy director of the Inorganic Professional Committee of the Chemical Society, and member of the Thermal Engineering Professional Committee of the Shaanxi Metrology Society. Mainly engaged in research on the modification of natural polymer materials. National Natural Science Foundation of China project: "Research on the Degradation Mechanism and Quantitative Degradation Controllability of Starch Balls" in 2005. He serves as the main person in charge and the project funding is 260,000. He is in charge of the synthesis and application of starch microspheres, gelatin microcapsules, modification of bone glue adhesives, new improved water-retaining agents, etc. His projects have been supported by the provincial and municipal education departments for many times, and he presided over a National Natural Science Foundation. Completed two National Natural Science Foundation projects. Responsible for the completion of the "Tenth Five-Year Plan for the Development Model and Technical Agriculture Sub-project of Resilience and Disaster Reduction in the Loess Plateau Gorge Area". The “Research on High-Yield Cultivation and Industrialization of Maple Cortex”, which he presided over, won the second prize of the Science and Technology Progress Award of the Shaanxi Provincial People’s Government in 1998. In March 2001, it was included in the “Ninth Five-Year Plan” national key scientific and technological research and major achievements in forestry projects. In 2006, he presided over the completion of the “Corn "Technical Conditions for the Synthesis of Starch Microspheres and Its Industrialization" and "Natural Environmentally Friendly Adhesive - This Bone Glue" have successively passed the appraisal and been rated as domestically leading and internationally leading. Among them, "Corn Starch Microsphere Synthesis Technical Conditions and Its Industrialization" has won the second prize of the Provincial Department of Education. Published "Inorganic Fine Chemicals", "Polymer Scientific Experimental Methods", "Comprehensive Utilization of Packaging Waste", "Packaging Materials", "Electronic Fine Chemicals", "300 Examples of Selected Practical Chemical Products", "Small Chemical Industry" He has published eight monographs such as "Product Formula and Technology"; published more than 200 scientific research papers in "Science Bulletin", "Journal of Chemistry of Colleges and Universities" and other publications, 10 of which have been included in SCI in recent years. He has applied for 15 national invention patents and has been successfully approved. 10 items. Synthesis method of soil improvement water-retaining agent (03114579.5), strong water-resistant composite insulation material (94100855.X), synthesis method of starch microspheres (02139572.1), preparation method of a quick-drying corn starch adhesive (200310105824.7) , Preparation method of bone glue modified adhesive (200310118978. Black liquor modified oil displacing agent (200510096452.5), preparation method of an environmentally friendly water-retaining agent (200510096414.X), etc.