耐高温涂料用粉石英表面改性研究  

Study on the Surface Modification of Natural Fine Quartz Used for High-temperature Coatings

作　　者：林鹏 梁岩 凌宇辰 王湘淇 刘务博 LIN Peng;LIANG Yan;LING Yu-chen;WANG Xiang-qi;LIU Wu-bo(College of Materials and Chemical Engineering,Heilongjiang Institute of Technology,Harbin 150050,China)

机构地区：[1]黑龙江工程学院材料与化学工程学院,黑龙江哈尔滨150050

出　　处：《化学与粘合》2021年第4期255-258,共4页Chemistry and Adhesion

基　　金：黑龙江工程学院博士基金(编号:2017BJ24);哈尔滨市应用技术研究与开发项目(编号:2015RAQXJ059);大学生创新创业训练计划项目(编号:202011802022)。

摘　　要：利用硅烷偶联剂(KH-570)对粉石英进行了表面改性。采用红外光谱(IR)、X射线光电子能谱(XPS)、黏度测试实验等对表面改性后的粉石英进行了表征。通过红外光谱和X射线光电子能谱证明了KH-570以化学键合的方式结合在粉石英的表面。黏度测试实验表明改性后的粉石英表面与改性前相比具有更好疏水性,在硅树脂中的分散性更好。热分析测试表明,与加入未改性的粉石英相比,经表面改性的粉石英粒子的加入,能更加明显地提高硅树脂的耐热性。The surface of natural fine quartz is treated with silane coupling reagent KH-570, and the modified natural fine quartz is analyzed with the FT-IR, XPS and viscosity test. The KH-570 is bonded on the surface of the natural fine quartz particles which is proved by FT-IR and XPS. The viscosity experiments show that the hydrophobicity of natural fine quartz modified with KH-570 is improved and the natural fine quartz modified with KH-570 disperses well in the silicone resin. The result of thermal analysis shows that the heat resistance of the silicone is improved obviously by adding the surface modified quartz particles compared with the unmodified quartz.

关 键 词：粉石英 表面改性 硅烷偶联剂KH-570 耐高温涂料 

分 类 号：TB332[一般工业技术—材料科学与工程]