私密直播全婐app免费大渔直播,国产av成人无码免费视频,男女同房做爰全过程高潮,国产精品自产拍在线观看

當前位置:群英聚首 > 論文著作 > 正文
Multiscale carbon nanosphere–carbon fiber reinforcement for cement-based composites with enhanced high-temperature resistance
來源:王慧奇教授/博導個人網站 發布日期:2015-03-31
作者:Han T, Wang H, Jin X, Yang J, Lei Y, Yang F, Yang X, Tao Z, Guo Q, Liu L
關鍵字:cement, composite,carbon fibers
論文來源:期刊
具體來源:J Mater Sci, 2015, 50(5): 2038-2048.
發表時間:2014年

A novel multiscale reinforcement was prepared
by the fast growth of carbon nanospheres (CNSs) onto the
surface of carbon ?ber (CF) under mildly hydrothermal
reaction. The uniform layer of CNS with an average
diameter of 85 nm produced on the ?ber surface. Further,
the structural analysis, surface morphology, and thermal
decomposition behavior of CNS–CF reinforcement were
studied by X-ray diffraction (XRD), scanning electron
microscope (SEM), X-ray photoelectron spectroscopy
combined with Fourier transform infrared spectroscopy and
thermogravimetric analysis, respectively. Cement-based
composites based on the multiscale CNS–CF reinforcement
have been fabricated to evaluate their high-temperature
resistance. CNS–CF/cement composites have a better
resistance to the degradation resulted from exposure to
elevated temperature up to 600 ° C than CF/cement com-
posites and pristine hardened pastes, since their relative
residual compressive strength is superior. The degrading
mechanisms due to exposure to elevated temperatures were
discussed and con?rmed by using SEM and XRD. Results
indicated that enhanced high-temperature resistance was
attributed to the effective interlocking between CF and
matrix due to (1) the presence of nanoscale CNS on the
surface of CF and (2) the formation of microchannels in the
matrix since CNS collapsed prior to CF after exposure to
elevated temperatures.

Copyright © 2005 Polymer.cn All rights reserved
中國聚合物網 版權所有
經營性網站備案信息

京公網安備11010502032929號

工商備案公示信息

京ICP證050801號

京ICP備12003651號

主站蜘蛛池模板: 海林市| 宝兴县| 乌鲁木齐市| 滨海县| 萝北县| 武功县| 宁河县| 怀化市| 高雄县| 大安市| 大洼县| 新巴尔虎右旗| 丰宁| 阿鲁科尔沁旗| 右玉县| 东辽县| 平顺县| 曲沃县| 油尖旺区| 木里| 南投县| 娄烦县| 定西市| 册亨县| 兴宁市| 安新县| 中宁县| 道孚县| 桐柏县| 青州市| 五原县| 云浮市| 金门县| 四平市| 信宜市| 新安县| 呼玛县| 太保市| 沂水县| 邢台县| 南丹县|