KH 550改性硅藻土/白炭黑体系填充氟橡胶的制备与性能  

Preparation and properties of fluorine rubber filled with KH 550 modified diatomite/silica system

作　　者：武卫莉[1] 丛松岩 WU Wei-li;CONG Song-yan(College of Materials Science and Engineering, Qiqihar University, Qiqihar 161006, China)

机构地区：[1]齐齐哈尔大学材料科学与工程学院,黑龙江齐齐哈尔161006

出　　处：《合成橡胶工业》2018年第4期299-303,共5页China Synthetic Rubber Industry

摘　　要：为了研究最适合氟橡胶的填料体系,分别以硅藻土、炭黑和白炭黑为增强填料,氟橡胶为基质制备复合材料,并分别加入硅烷偶联剂KH 550、KH 590或Si 69以提高填料与氟橡胶的相容性。结果表明,最适合氟橡胶的填料是硅藻土与白炭黑以质量比8/12的复配体系,最佳的偶联剂为2.0份的KH 550。扫描电镜的观察证明KH 550提高了硅藻土与氟橡胶的相容性,红外光谱分析表明KH 550改性硅藻土/白炭黑复配填料与氟橡胶发生了交联反应,热重分析表明该体系提高了氟橡胶的耐热性能。In order to study the most suitable filler system for fluorine rubber, the composites were prepared by using diatomite, carbon black and silica as reinforcements respectively, thc fluorine rubber as matrix, and coupling agent KH 550, KH 590 and Si 69 was added separately to improve compatibility. The results showed that the most suitable filler for fluorine rubber was diatomite and silica （mass ratio 8/12） compounded system agent was KH 550 （2 phr, , and the best coupling mass）. Scanning electron microscopy observation proved that KH 550 improved the compatibility between diatomite and fluorine rubber, infrared spectrum analysis showed that crosslinking reaction took placed between the KH 550 modified diatomite/silica compounded filler and fluorine rubber, and thermogravimetric analysis indicated that the filler system enhanced heat resistance of fluorine rubber.

关 键 词：氟橡胶 硅藻土 填料体系 偶联剂 力学性能 耐热性能 

分 类 号：TQ333.93[化学工程—橡胶工业]