摘要
对市政污泥作为填料制备建筑外墙涂料的可行性进行了实验室研究,结果表明,将污泥进行热碳化预处理后得到的黑色粉末用来制备涂料,以黏度、孔隙率和吸水性考量涂料性能,可得出涂料制备的基础配方为:污泥31.58%(质量分数,下同),苯烯酸乳液15.79%,羧甲基纤维素钠1.05%,水51.58%。制得涂料的质量性能如容器中状态、耐水性、耐碱性、耐人工气候老化性均符合国家标准(GB/T 9755-2014)要求。同时,涂膜硬度为3H,附着力为0级,显示出市政污泥基涂料特有的优势。
The feasibility of preparation of building exterior wall coatings with municipal sludge filler is studied in laboratory.Th black powder obtained from the sludge pretreatment by thermally carbonized method is used to prepare the coatings.The coating performance is evaluated by viscosity,porosity and water absorbency.The basic formula of the coatings is:sludge 31.58 wt%,benzenoic acid emulsion 15.79 wt%,carboxyl,sodium methylcellulose 1.05 wt%and water 51.58 wt%.The properties of the coatings,such as the state in the container,water resistance,alkali resistance and artificial climate aging resistance,can meet the requirements of the national standard(GB/T 9755-2014).At the same time,the film hardness is 3 H and the adhesion is 0,which shows the unique advantages of the municipal sludge-based coatings.
作者
陈光照
韩卿
薛白亮
李新平
Chen Guangzhao;Han Qing;Xue Bailiang;Li Xinping(College of Light Industry Science and Engineering,Shaanxi University of Science&Technology,National Demonstration Center for Experimental Light Chemistry Engineering Education(Shaanxi University of Science&Technology),Key Laboratory of Paper Based Functional Materials of China National Light Industry,Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development,Shaanxi 710021,China)
出处
《涂料技术与文摘》
2019年第9期51-57,共7页
Coatings Technology & Abstracts
关键词
市政污泥
制备
配方
优化
性能
municipal sludge
preparation
formulation
optimization
performance
