摘要
分别采用四种不同偶联剂对坡缕石进行表面改性,用沉降高度法对改性效果进行评价,得到了四种偶联剂表面改性坡缕石的优化工艺。红外光谱分析研究表明:偶联剂改性坡缕石中,铝锆偶联剂与坡缕石在改性过程中发生了相对强烈的化学键合;相对于其它三种偶联剂,铝锆偶联剂和丁腈改性酚醛树脂产生的化学键合最为强烈,因此可以认为铝锆偶联剂能够较好地改善摩擦材料中丁腈改性酚醛树脂和坡缕石纤维界面结合状况。
In the present research the fiber - like palygorskites are surface - modified by four kinds of different coupling agents, and the optimal modification process parameters are obtained by the drop height method employed to evaluate the effects of surface modification. The IR - spectrometry analysis results show that chemical combination exists between Al - Zr coupling agent and fiber - like palygorskite in the modified fiber - like palygorskite and the chemical combination between Al - Zr coupling agent and phenolic resin is the strongest relative to the other three coupling agents, so Al - Zr coupling agent can be selected to improve the bonding behavior between fiber - like palygorskite and phenolic resin in the friction material.
出处
《贵州工业大学学报（自然科学版）》
CAS
2007年第4期37-39,46,共4页
Journal of Guizhou University of Technology(Natural Science Edition)
基金
国家自然科学基金(50464005)
贵州省委组织部高层次人才科研条件特助经费基金资助
关键词
表面改性
纤维状坡缕石
酚醛树脂
偶联剂
surface modification
fiber - like palygorskite
phenolic resin
coupling agent
