|本期目录/Table of Contents|

[1]易舒政,陈建军. 锆硅杂化树脂原位裂解制备莫来石纤维三维骨架多孔陶瓷 [J].浙江理工大学学报,2025,53-54(自科六):786-794.[doi:10.3969/j.issn.1673-3851(n).2025.06.005]
　YI Shuzheng,CHEN Jianjun.Preparation of mullite fiber three-dimensional skeleton porous ceramics by in situ pyrolysis of zirconium-silicon hybrid resin[J].Journal of Zhejiang Sci-Tech University,2025,53-54(自科六):786-794.[doi:10.3969/j.issn.1673-3851(n).2025.06.005]
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锆硅杂化树脂原位裂解制备莫来石纤维三维骨架多孔陶瓷
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浙江理工大学学报[ISSN:1673-3851/CN:33-1338/TS]

卷:
第53-54卷
期数:
2025年自科第六期
页码:
786-794
栏目:
出版日期:
2025-11-10

文章信息/Info

Title:
Preparation of mullite fiber three-dimensional skeleton porous ceramics by in situ pyrolysis of zirconium-silicon hybrid resin
文章编号:
1673-3851(2025)11-0786-09
作者:
易舒政; 陈建军
浙江理工大学材料科学与工程学院,杭州310018
Author(s):
YI Shuzheng;  CHEN Jianjun
School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
关键词:
锆硅杂化树脂; 莫来石纤维; 纤维多孔陶瓷; 聚硅氧烷; 隔热材料
分类号:
TB34
DOI:
10.3969/j.issn.1673-3851(n).2025.06.005
文献标志码:
A
摘要:
针对纤维多孔陶瓷存在有机硅树脂黏结剂耐温性差,以及压力浸渍法导致样品内部纤维呈定向层状排布问题,采用正丙醇锆改性有机硅树脂制备锆硅杂化树脂黏结剂,通过抽滤法将杂化树脂与通过冷冻干燥法制备的莫来石纤维三维骨架复合,并在管式炉中高温裂解,制得莫来石纤维多孔陶瓷;采用傅里叶变换红外光谱、X射线光电子能谱、扫描电子显微镜以及X射线衍射仪对锆硅杂化树脂的结构、形貌和物相组成进行表征。通过X射线衍射仪、阿基米德排水法、万能试验机、热常数分析仪、红外热成像仪和扫描电子显微镜对莫来石纤维多孔陶瓷性能和微观结构进行表征。结果表明:与未掺锆(Zr)元素的有机硅树脂相比,Zr元素的引入使有机硅树脂的耐热性显著提高,锆硅摩尔比为1∶10的锆硅杂化树脂在1000℃氩气环境下的残余质量分数由原来的61.13%提高到77.15%;制备的莫来石纤维多孔陶瓷具有低密度(0.325~0.339g/cm3)、高孔隙率(81.8%~85.2%)、低热导率(0.063~0.070W/mK)特点;该陶瓷的抗压强度随着处理温度的升高呈先升高后降低的变化趋势,1200℃时样品的抗压强度最高为0.73MPa;当处理温度升高至1400℃时,样品内部莫来石纤维晶粒长大,纤维强度下降。该研究可为制备结构均匀且高温热稳定性良好的莫来石纤维多孔陶瓷提供参考。

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备注/Memo

备注/Memo:
收稿日期:2024-02-21 网络出版日期:2025-06-03基金项目:浙江省自然科学基金重点项目(LZ23E020003);国家自然科学基金项目(51872262)作者简介:易舒政(2000— ),男,湖南株洲人,硕士研究生,主要从事陶瓷基复合材料方面的研究。通信作者:陈建军,E-mail:chen@zstu.edu.cn
更新日期/Last Update: 2025-11-25