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.
作者
武卫莉
丛松岩
WU Wei-li;CONG Song-yan(College of Materials Science and Engineering, Qiqihar University, Qiqihar 161006, China)
出处
《合成橡胶工业》
CAS
CSCD
北大核心
2018年第4期299-303,共5页
China Synthetic Rubber Industry
关键词
氟橡胶
硅藻土
填料体系
偶联剂
力学性能
耐热性能
fluorine rubber
diatomite
filler system
coupling agent
mechanical property
heat resistance
