羟基淀粉煤炭抑尘剂的制备及性能表征  

The preparation and performance characterization of a coal dust suppression with hydroxy-starch

作　　者：朱开金[1] 朱鹏宇[2] 谭俊华[1] 赵彦亮[1] 刘菲[1] 高建金 

机构地区：[1]太原工业学院,山西太原030008 [2]江苏理工学院化工与环境学院,江苏常州213001

出　　处：《中国矿业》2015年第7期145-148,共4页China Mining Magazine

摘　　要：采用羟丙基淀粉醚为主要原料,以N,N-亚甲基双丙烯酰胺作交联剂,过硫酸铵作引发剂,羧乙基纤维素钠作粘度调节剂和成膜剂,得到一种保湿性、抗风蚀性、水稳性、耐温性等性能优良的煤炭抑尘剂。通过实验对比,此种抑尘剂在抗风蚀性、水稳性、耐温性方面比纯淀粉基煤炭抑尘剂的各项指标均优。交联反应虽可形成网络结构,提高产物的保湿抗风蚀等性能,也会降低其粘度,不利于成膜性,因此控制交联反应程度为一关键。最佳的反应条件是温度为70℃左右,时间为1h。Hydroxypropyl starch is used as the main raw material,N,N-methylene-bis-arcylamide as a cross-linking agent,ammonium persulphate as an intiator,sodium carboxy ethyl cellulose as a viscosity regulator and film-forming agent,a coal dust-depressor with fine moisture,anti-rheumatic,water stability and temperature resistance is gotten.By comparison,the technology indicators of this suppressant are well than pure starch-based coal dust-depressor in some aspects such as anti-rheumatic,water stability and temperature resistance.Cross-linking reaction could form a network structure,and improve product＇s moisture and the resistance to wind erosion,but it could also reduce product＇s viscosity,is not conductive to film-forming property,so controlling the degree of cross-linking is critical.Optimum reaction conditions are a temperature of about 70 degrees,and time of 1h.

关 键 词：羟丙基淀粉醚 N N-亚甲基双丙烯酰胺 交联 煤炭抑尘剂 性能 

分 类 号：TD714.4[矿业工程—矿井通风与安全]