摘要
利用ACC-Ⅱ高温坩埚电阻炉将一定量的白云石与粉煤灰相混合，经高温熔化、拉丝等工艺进行制备白云石／粉煤灰纤维，通过扫描电镜（SEM）对其结构、形貌和特性进行研究，并讨论白云石含量对粉煤灰纤维性能的影响。结果表明，22％～28％（质量分数）的白云石和粉煤灰混合在高温熔化下，可形成新网状结构的硅酸盐功能材料。并且白云石能够改变粉煤灰纤维的结构、化学组成及性质，使粉煤灰纤维的化学耐久性、柔韧性和耐热强度等方面都有显著提高。
Fly-ash was mixed with dolomite in different proportions, the dolomite/fly-ash fibers were made by melting,drawing the mixture and other processes using the ACC-Ⅱ high-temperature pot resistance furnace. Microstructure, morphology and characteristic of the dolomite/fly-ashfibers with fly ash fibers were investigated by Scanning Electron Microscopy （SEM）. The influence of dolomite on performance of fly-ash fibers was studied. The results showed that a kind of the dolomite/fly ash silicate function material with new network structure can be produced by melting the mixture of dolomite in the mass fraction of dolomite/fly-ash 22%-28%. It was found that dolomite can change the structure, constitute and performances of fly ash fibers and improve the chemical permanence, flexility and heat-resistant performance of fly ash fibers.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2007年第A09期3458-3461,共4页
Journal of Functional Materials
基金
河北省科技攻关计划资助项目（06215122）
关键词
白云石
粉煤灰
纤维
制备
性能
网状结构
dolomite
fly ash（fly-ash）
fiber
preparation
properties
network structure
