标题：Study on preparation and properties of environmentally-friendly dust suppressant with semi-interpenetrating network structure
作者：Wu Mingyue; Hu Xiangming; Zhang Qian; Lu Wei; Zhao Yanyun; He Zhenglong
作者机构：[Wu Mingyue; Hu Xiangming; Zhang Qian; Lu Wei; Zhao Yanyun; He Zhenglong] Shandong Univ Sci & Technol, Coll Safety & Environm Engn, Key Lab Mine Disas 更多
通讯作者：Xiangming, Hu;Xiangming, Hu
通讯作者地址：Hu, XM (corresponding author), Shandong Univ Sci & Technol, Coll Safety & Environm Engn, Key Lab Mine Disaster Prevent & Control, 579 Qianwangang Rd,X 更多
来源：JOURNAL OF CLEANER PRODUCTION
关键词：Coal dust pollution; Composite dust suppressant; Resistance to; evaporation; Environmentally-friendly
摘要：In order to solve the coal dust pollution generated by open-pit mines, a novel environmentally-friendly poly(vinyl alcohol)/sodium alginate (SA)/glycerol (PVA/SA/GLY) composite dust suppressant was obtained by a simple method in this paper. The formulation of dust suppressant was determined through the orthogonal and single-factor tests. Its properties (viscosity, compressive strength, wetting property, resistance to evaporation and biodegradability) were investigated. The test results indicate that at a temperature of 55 degrees C, when the masses of PVA, SA, GLY, STMP (as a crosslinking agent) and SDS, APG were 5.5 g, 0.45 g, 4.5 g, 0.12 g, 0.6g and 0.1g respectively, the viscosity (includes 0.6 g SDBS + 0.1 g APG) of the prepared copolymer was 76 mPa s and the compressive strength of cured film of dust suppressant reached up to 26.1 kPa. Compared with water as a dust suppressant (control group), the dust suppressant reported in this paper has good wettability and resistance to evaporation. After the 8th cycle (56 d), the percent of degradation of the dust suppressant pre-buried into the soil was 33%. The dust suppressant in this study has good wetting, moisture retention and degradation performance, which can bring significant economic and social environmental benefits to the field of coal dust control. (C) 2020 Elsevier Ltd. All rights reserved.