|本期目录/Table of Contents|

[1]伊希斌,张晶,马婕,等.自生长纳米纤维增强SiO2气凝胶的制备和力学性能研究[J].南京工业大学学报(自然科学版),2016,38(02):27-32.[doi:10.3969/j.issn.1671-7627.2016.02.005]
 YI Xibin,ZHANG Jing,MA Jie,et al.Preparation and mechanical strength of SiO2 aerogels enhanced by self-growing nano fibers[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2016,38(02):27-32.[doi:10.3969/j.issn.1671-7627.2016.02.005]
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自生长纳米纤维增强SiO2气凝胶的制备和力学性能研究()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
38
期数:
2016年02期
页码:
27-32
栏目:
出版日期:
2016-04-10

文章信息/Info

Title:
Preparation and mechanical strength of SiO2 aerogels enhanced by self-growing nano fibers
文章编号:
1671-7627(2016)02-0027-06
作者:
伊希斌1张晶1马婕12刘硕1王小军1沈晓冬2崔升2
1.山东省科学院 新材料研究所 山东省粘接材料重点实验室,山东 济南 250014; 2.南京工业大学 材料科学与工程学院 材料化学工程国家重点实验室,江苏 南京 210009
Author(s):
YI Xibin1ZHANG Jing1MA Jie12LIU Shuo1WANG Xiaojun1SHEN Xiaodong2CUI Sheng2
1.Key Laboratory for Adhesion & Sealing Materials of Shandong Province,Institute of the New Material Research,Shandong Academy of Sciences,Ji’nan 250014,China; 2.State Key Laboratory of Materials-Oriented Chemical Engineering,College of Materials Science and Engineering,Nanjing Tech University,Nanjing 210009,China
关键词:
自生长纳米纤维 SiO2气凝胶 力学强度
Keywords:
self-growth nanofibers SiO2 aergels mechanical strength
分类号:
O614.3+1;TB33
DOI:
10.3969/j.issn.1671-7627.2016.02.005
文献标志码:
A
摘要:
利用溶胶-凝胶法结合超临界干燥,并经高温热处理工艺制备出自生长锆氧、铝氧纳米纤维增强SiO2复合气凝胶,通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X线衍射仪(XRD)、N2吸附-脱附等测试方法对复合气凝胶的结构进行表征,并对试样的力学性能进行验证。结果表明:利用前驱溶液中酸碱不平衡的现象自生长出锆、铝氧纳米纤维,将金属氧化物和SiO2前驱体在凝胶老化过程中复合成型后再经高温转化的方式实现增强纤维与气凝胶本体的结合,制备出轻质、高强度、耐高温、耐氧化的纳米纤维增强SiO2复合气凝胶,压缩强度可达到6 MPa以上。
Abstract:
The SiO2 aerogels reinforced by the self-growing zirconia and alumina were synthesized using sol-gel technology and supercritical fluid drying,and converted to the high strength composite aerogels after high temperature heat treatment process.The structures of composite aerogels were analyzed by scanning electron microscopy(SEM),transmission electron microscopy(TEM),X-ray diffraction(XRD),specific surface area test,and the compressive strengths were measured.Results showed that zirconia and alumina nanofibers would grow with the pH imbalance in precursor solution, and the reinforcing fibers could be perfectly combined with gel body under the aging of metal oxide and SiO2 gel precursor,and the composite aerogels were treated at high temperatures.The preparation composite SiO2 aergels had characteristics of lightweight,high strength,high temperature resistance,and the mechanical compression strength could reach more than 6 MPa.

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相似文献/References:

[1]马佳,沈晓冬,崔升,等.低温保冷用SiO2气凝胶复合材料的制备和性能[J].南京工业大学学报(自然科学版),2016,38(02):47.[doi:10.3969/j.issn.1671-7627.2016.02.009]
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备注/Memo

备注/Memo:
收稿日期:2015-10-20
基金项目:国家自然科学基金(51402176); 山东省优秀中青年科学家科研奖励基金(BS2013CL038); 山东省科技发展计划(2013YD02046); 山东省科学院青年基金(2013QN019); 材料化学工程国家重点实验室开放课题基金(KL13-13); 济南市青年科技明星计划(2013039)
作者简介:伊希斌(1981—),男,山东淄博人,副研究员, 博士,主要研究方向为气凝胶及无机纳米材料,E-mail:yixb@sdas.org.
引用本文:伊希斌,张晶,马婕,等.自生长纳米纤维增强SiO2气凝胶的制备和力学性能研究[J].南京工业大学学报(自然科学版),2016,38(2):27-32..
更新日期/Last Update: 2016-03-20