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材料工程  2020, Vol. 48 Issue (1): 48-53    DOI: 10.11868/j.issn.1001-4381.2019.000217
  研究论文 本期目录 | 过刊浏览 | 高级检索 |
纤维增强石英复合材料的改性处理及性能研究
张冰清, 杨小波, 孙志强, 苗镇江, 王华栋, 吕毅
航天特种材料及工艺技术研究所, 北京 100074
Modification treatment and properties research of fiber reinforced silicon dioxide composites
ZHANG Bing-qing, YANG Xiao-bo, SUN Zhi-qiang, MIAO Zhen-jiang, WANG Hua-dong, LYU Yi
Aerospace Institute of Advanced Materials & Processing Technology, Beijing 100074, China
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摘要 采用气相接枝方法对纤维增强石英复合材料进行改性处理,对材料的微观形貌、比表面积、介电性能、力学性能和吸湿率等进行测试和分析。结果表明,改性处理和后续热处理对材料的微观形貌和比表面积影响很小,且对材料的介电性能和力学性能没有损伤。改性处理后,材料的介电损耗随频率的变化范围从4.7×10-3~6.8×10-3明显降低到1.7×10-3~2.9×10-3,拉伸强度从48.58 MPa明显提高到63.49 MPa。改性处理的优选处理条件为(Tbp+30℃)/72 h/80%M。材料的极限吸湿率在改性处理后从6.35%降低到0.32%,说明该方法具有优异的防潮效果。
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张冰清
杨小波
孙志强
苗镇江
王华栋
吕毅
关键词 石英复合材料改性性能    
Abstract:The fiber reinforced quartz composites were modified by gaseous phase grafting method, and then the microcosmic pattern, specific surface area, dielectric properties, mechanic properties, moisture absorption rate and other properties of composites were measured and analyzed. The results indicate that the modification treatment and subsequent heat treatment have little influence on microcosmic pattern and specific surface area of composite, moreover no damage to dielectric properties or mechanic properties of composite occurs. After modification, the range of dielectric loss variation with frequency of composites is decreased significantly from 4.7×10-3-6.8×10-3 to 1.7×10-3-2.9×10-3, while the tensile strength of composites is increased evidently from 48.58 MPa to 63.49 MPa. The optimized processing condition of modification is (Tbp+30℃)/72 h/80% M. The ultimate moisture absorption rate of the composites shows significant decrease from 6.35% to 0.32% after the modification, demonstrating the excellent moisture prevention effects of this method.
Key wordssilicon dioxide    composites    modification    property
收稿日期: 2019-03-12      出版日期: 2020-01-09
中图分类号:  TB332  
基金资助: 
通讯作者: 张冰清(1989-),女,工程师,硕士,研究方向为耐高温透波材料专业,联系地址:北京市丰台区云岗北里40号院航天特种材料及工艺技术研究所(100074),E-mail:bqz163@163.com     E-mail: bqz163@163.com
引用本文:   
张冰清, 杨小波, 孙志强, 苗镇江, 王华栋, 吕毅. 纤维增强石英复合材料的改性处理及性能研究[J]. 材料工程, 2020, 48(1): 48-53.
ZHANG Bing-qing, YANG Xiao-bo, SUN Zhi-qiang, MIAO Zhen-jiang, WANG Hua-dong, LYU Yi. Modification treatment and properties research of fiber reinforced silicon dioxide composites. Journal of Materials Engineering, 2020, 48(1): 48-53.
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http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2019.000217      或      http://jme.biam.ac.cn/CN/Y2020/V48/I1/48
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