触变性及触变剂研究进展  

Research progress of thixotropy and thixotropic agent

作　　者：胡国和 虎晓东 徐自冲 张音 张轲 HU Guo-he;HU Xiao-dong;XU Zi-chong;ZHANG Yin;ZHANG Ke(Shaanxi Coal Chemical Industry Technology Research Institute Co.,Ltd.,Xi’an 710100,China;Weinan Shaanxi Coal Qichen Technology Co.,Ltd.,Xi’an 710100,China;National&Local United Engineering Research Center of Green Safety Efficient Mining,Xi’an 710065,China)

机构地区：[1]陕西煤业化工技术研究院有限责任公司,陕西西安710100 [2]渭南陕煤启辰科技有限公司,陕西西安710100 [3]煤炭绿色安全高效开采国家地方联合工程中心,陕西西安710065

出　　处：《应用化工》2023年第10期2940-2944,共5页Applied Chemical Industry

基　　金：陕西省重点研发计划项目(2020GY-277);陕西省秦创原“科学家+工程师”队伍建设项目(2023KXJ-182)。

摘　　要：首先综述了国内外触变性研究现状,包括触变性分类、触变模型以及触变性测量等。触变性是指一定温度下非牛顿流体粘度随剪切时间而变化的行为,触变机理和触变模型的研究有助于人们更加深刻认识材料的触变性,利于触变材料的推广应用;其次概述了气相二氧化硅、有机膨润土、氢化蓖麻油、聚酰胺蜡等常用触变剂,对触变剂在体系中的流变改性原理及其在高分子材料中的应用作了简单介绍。随着研究和发展的不断深入,触变剂已被广泛用来改善涂料、油漆、胶粘剂等高分子材料的流变性,有效提升材料贮存稳定性、施工性等;最后总结和展望了触变性和触变剂的研究及发展趋势,触变性应用领域不断拓宽,触变剂持续多样化、高效化发展。The research status of thixotropy at home and abroad was reviewed,including thixotropy classification,thixotropy model and thixotropy measurement.Thixotropy refers to the behavior that the viscosity of Non-Newtonian fluid changes with shear time at a certain temperature.The research on thixotropy mechanism and thixotropy model will help people to have a deeper understanding of the thixotropy of materials,which is conducive to the promotion and application of thixotropy materials;secondly,the common thixotropic agents such as fumed silica,organic bentonite,hydrogenated castor oil,polyamide waXand sOon were summarized.A brief introduction was given to the rheological modification principle of thixotropic agents in the system and their application in polymer materials.With the continuous deepening of research and development,thixotropic agents have been widely used to improve the rheological properties of polymer materials such as coatings,paints,adhesives,etc.,effectively improving material storage stability,workability,etc;finally,the research and development trends of thixotropy and thixotropic agents are summarized and prospected.The application fields of thixotropy continue to expand,and the development of thixotropic agents continues to be diversified and efficient.

关 键 词：触变性 粘度 触变剂 反应型触变剂 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]