环氧基硅烷化硅胶制备及分析方法  

Preparation and Analysis Method of Epoxy Silanized Silica Gel

作　　者：郭栋[1] 黄秀红[1] Guo Dong;Huang Xiuhong(Qingdao University of Science and Technology,Qingdao Shandong 266000,China)

机构地区：[1]青岛科技大学,山东青岛266000

出　　处：《山西化工》2024年第7期34-36,共3页Shanxi Chemical Industry

摘　　要：为探索环氧基硅烷化硅胶在提升复合材料界面性能、增进特定吸附剂选择性吸附能力及优化传感器的灵敏度与稳定性方面应用潜力,本研究采纳了精细化化学修饰技术对硅胶进行环氧基硅烷化处理。该处理旨在硅胶表面引入活性环氧基团,通过后续环氧开环反应进一步植入多样化功能基团,以此大幅拓展了硅胶的应用范围。本项研究以环氧基硅烷化硅胶制备及其性能分析为核心,通过综合运用前处理优化、反应条件精确控制及后续纯化处理等技术路线,对改性硅胶进行了全面物理化学性质评估。分析技术涵盖了扫描电子显微镜(SEM)、透射电子显微镜(TEM)以评估表面形态,傅立叶变换红外光谱(FTIR)、X射线光电子能谱(XPS)以揭示化学结构的改变,热重分析(TGA)以确定材料热稳定性。研究结果表明,在经过优化制备工艺后,所获得环氧基硅烷化硅胶显示出优的表面形态、稳定化学组成以及显著提高热稳定性。可为未来硅胶材料研究提供科学依据。In order to explore the potential application of epoxy silanized silica gel in improving the interfacial properties of composite materials,enhancing the selective adsorption capacity of specific adsorbents,and optimizing the sensitivity and stability of sensors,this study adopted refined chemical modification technology to perform epoxy silanization treatment on silica gel.This treatment aims to introduce active epoxy groups onto the surface of silicone,and further implant diverse functional groups through subsequent epoxy ring opening reactions,greatly expanding the application range of silicone.This study focuses on the preparation and performance analysis of epoxy silanized silica gel,and comprehensively evaluates the physical and chemical properties of modified silica gel through the use of pre-treatment optimization,precise control of reaction conditions,and subsequent purification treatment techniques.Analytical techniques include scanning electron microscopy(SEM),transmission electron microscopy(TEM)to evaluate surface morphology,Fourier transform infrared spectroscopy(FTIR),X-ray photoelectron spectroscopy(XPS)to reveal changes in chemical structure,and thermogravimetric analysis(TGA)to determine material thermal stability.The research results indicate that after optimizing the preparation process,the obtained epoxy silane silica gel exhibits excellent surface morphology,stable chemical composition,and significantly improved thermal stability.This provides a scientific basis for future research on silicone materials.

关 键 词：硅胶 硅烷化反应 表面形态 

分 类 号：TQ333.93[化学工程—橡胶工业]