摘要
用平衡溶胀法、扫描电镜、动态粘弹谱仪及力学性能测试等手段研究了分别经“短纤维与增粘剂F和胶乳共沉法”(LF法)、“短纤维与RS,RE,RH直粘剂和胶乳共沉法”(LB法)预处理的短纤维(尼龙或维尼纶)与橡胶(丁苯橡胶或丁腈橡胶)基质间的界面粘合作用,讨论了短纤维/橡胶复合材料(SFRC)的界面结构形态。在Halpin—Tsai方程的基础上,提出了一个能直观、定量地表征SFRC界面作用的新概念。等效界面厚度”——短纤维半径增大值。发现用恒切变速率下的粘流活化能也可评估短纤维/橡胶界面粘合水平。研究结果表明,用LF法或LB法预处理短纤维,可显著增强短纤维与橡胶基质间的粘合作用,提高SFRC的性能。
The interiacial adhesion between short fiber fillers and rubber matrix was studied by the equilibrium swelling method , SEM , MPT , dynamic viscoelastic spectrum and mechanical property . The short fiber was pretreated by LF and LB methods . The new concept of Equivalent Interiacial Thickness (ΔR) was proposed to evaluate the interiacial adhesion . It was found that pretreated fiber with LB and LF strengthenedthe interiacial adhesion , therefore , strikingly enhanced the mechanical properties and swelling esistant ability of short fiber reinforced rubber composites .
出处
《合成橡胶工业》
CAS
CSCD
北大核心
1992年第6期329-332,共4页
China Synthetic Rubber Industry
基金
国家自然科学基金
关键词
短纤维
橡胶复合材料
界面
粘合
short fiber/rubber composites
short fiber pretreating
interracial adhesion
equi- valent interracial thickness
viscous flow activated energy
