摘要
利用硅烷偶联剂(KH-550)对煤矸石粉进行改性。采用红外光谱(FTIR),扫描电子显微分析(SEM)和热重分析技术(TGA)对改性前后煤矸石粉进行了分析。通过对改性前后煤矸石粉/苯乙烯-丁二烯嵌段共聚物(SBS)的力学性能来评价KH-550对煤矸石粉的活化效果。实验结果表明,KH-550与煤矸石粉能形成化学键,煤矸石粉的有机成分含量增加。改性后煤矸石粉的粒径变小,煤矸石粉表面活性增加。与未改性煤矸石粉/SBS材料力学性能相比,改性煤矸石粉/SBS材料的力学性能明显提高。改性煤矸石粉/SBS材料与炭黑/SBS材料的力学性能相当,说明改性后煤矸石粉的活化效果明显,可取代炭黑作为橡塑材料的填料。
The coal gangue was modified by silane coupling agents. The modified coal gangue was characterized by IR, SEM and TGA. The activation effect of coal gangue modified by KH-550 was evaluated through testing mechanical properties of composite materials. It was shown that coal gangue and KH-550 could be mombined by chemical bond, and the organic component content and the surface activity of coal gangue was increased. The mechanical property of modified coal gangue/SBS was improved compared with coal gangue/SBS. The mechanical property of modified coal gangue/SBS was equivalent with carbon black/SBS composites. It was shown that the activation effect of modified coal gangue was improved and could be replaced carbon black as low cost filling in rubber plastic materials.
出处
《非金属矿》
CAS
CSCD
北大核心
2009年第5期45-47,共3页
Non-Metallic Mines
基金
安徽省优秀青年基金项目(2009SQRZ065)
关键词
煤矸石粉
硅烷偶联剂
活化
SBS
拉伸性能
coal gangue powder silane coupling agent activation SBS tensile property