碳纤维硫铝酸盐水泥基机敏复合材料  

SMART PROPERTIES OF CARBON FIBER REINFORCED SULPHOALUMINATE CEMENT

作　　者：王守德[1] 黄世峰[2] 陈文[1] 程新[2] 

机构地区：[1]武汉理工大学材料学院,430070 [2]济南大学材料学院,250022

出　　处：《复合材料学报》2005年第6期114-119,共6页Acta Materiae Compositae Sinica

基　　金：山东省优秀中青年科学家科研奖励基金项目(03BS060)

摘　　要：采用压制成型方法制备了碳纤维硫铝酸盐水泥基复合材料(Carbon Fiber Reinforced SulphoaluminateCement,简称CFRS)。用XRD和孔结构分析仪对复合材料的物相和孔径与孔体积的关系进行了分析,研究了不同碳纤维掺量对复合材料在单调压应力和循环压应力下的机敏性能的影响。XRD和孔结构分析研究结果表明,压制成形的试样水化14天硫铝酸盐水泥水化仍不完全,试样结构致密,孔隙率较小,孔径基本小于0.9μm;单调压应力下机敏测试性能表明,碳纤维掺量为0.3%和0.5%的CFRS试样电容变化率与压应力近似成线性关系,机敏性能较好;循环压应力下碳纤维掺量为0.7%的CFRS试样电容变化率与循环压应力成一一对应关系,表现出较好的机敏特性。Carbon fiber reinforced sulphoaluminate cement was fabricated by pressing technology; its smart properties were studied. The phases and relationship between pore diameter and pore volume were analyzed by XRD test and Poremaster analyzer. The influences of different carbon fiber contents on the smart properties of CFRS under monotone stress and cycle stress were studied. The results of pore structure analysis and XRD analysis indicate that the structure is dense, the hydration of sulphoaluminate cement is not completed and the pore diameter is mostly smaller than 0.9μm. The monotoning stress test indicates that the fractional changes in capacity of CFRS containing 0.3% and 0.5% carbon fiber are linear to the stress, and having smarter properties; the cycle stress test indicates that the fractional change in capacity of CFRS containing 0.7% carbon fiber is corresponding to the cycle stress change, and the CFRS containing 0.7% carbon fiber has smarter properties.

关 键 词：碳纤维 硫铝酸盐水泥 机敏性能 介电常数 

分 类 号：TB332[一般工业技术—材料科学与工程]