Article(id=1322612372682944884, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322612265061306700, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.2020.05.20190693, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1571587200000, receivedDateStr=2019-10-21, revisedDate=1574265600000, revisedDateStr=2019-11-21, acceptedDate=null, acceptedDateStr=null, onlineDate=1793264962596, onlineDateStr=2026-10-29, pubDate=1589904000000, pubDateStr=2020-05-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793264962596, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793264962596, creator=13701087609, updateTime=1793264962596, updator=13701087609, issue=Issue{id=1322612265061306700, tenantId=1146029695717560320, journalId=1263187385517883426, year='2020', volume='48', issue='5', pageStart='615', pageEnd='786', issueExtLink='null', onlineDate='null', pubDate='1589904000000', pubDateStr='2020-05-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793264936938, creator='13701087609', updateTime=1793276961694, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322662700602208333, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322612265061306700, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322662700602208334, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322612265061306700, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=768, endPage=776, ext={EN=ArticleExt(id=1322612374427775349, articleId=1322612372682944884, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Molten Salt-assisted Combustion Synthesis of Carbon Foam and its Electromagnetic Shielding Performance, columnId=null, journalTitle=Journal of the Chinese Ceramic Society, columnName=null, runingTitle=null, highlight=null, articleAbstract=

Carbon foams were prepared via molten salt-assisted combustion synthesis with polyvinyl chloride (PVC) as a carbon source, magnesium powder (Mg) as a reducing agent, ferrocene (Fc) as a catalyst and different kinds of molten salts (i.e., NaCl, KCl, and MgCl2) as a porogen. The products were characterized by X-ray diffraction, scanning electron microscopy, Raman spectroscopy and specific surface area measurement. The electromagnetic shielding specimens were prepared with carbon foam as an absorbent and paraffin as a binder. The electromagnetic shielding effectiveness of the samples in the frequency range of 8.2-12.4 GHz was tested by a rectangular waveguide method. The results show that the optimum foaming effect is achieved when NaCl is used as a porogen, and the well-developed hollow spherical carbon foams with the pore sizes of 100-500 nm are obtained after washing and leaching. Molten salts have a positive effect on the graphitization degree and micro-morphology of carbon foams, in which NaCl shows an optimum accelerating-effect. The combustion synthesized products have a good electromagnetic shielding performance. The carbon foams with NaCl as a molten salt have an optimum electromagnetic shielding efficiency (i.e., up to 39.5 dB).

, authors=Wentao XU1, Donghai DING1, Xinmin YU2, Guoqing XIAO1, Yun REN1, Yunqin GAO1, Xing HOU1, authorsList=Wentao XU, Donghai DING, Xinmin YU, Guoqing XIAO, Yun REN, Yunqin GAO, Xing HOU, authorCompany=null, correspAuthors=Donghai DING, authorNote=

XU Wentao (1995-), male, Master candidate. E-mail:

, correspAuthorsNote=
DING Donghai (1983-), male, Associate Professor. E-mail:
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以聚氯乙烯(PVC)为原料,金属镁粉(Mg)为还原剂,二茂铁(Fc)为催化剂,不同种类的熔盐(NaCl,KCl,MgCl2)为造孔剂,采用熔盐辅助燃烧合成法制备了碳泡沫。采用X射线衍射、扫描电子显微镜、Raman光谱仪、比表面积分析仪等对产物进行了表征;以燃烧合成的碳泡沫为吸收剂,石蜡为结合剂,采用矩形波导法测试试样在8.2~12.4 GHz频率范围内的电磁屏蔽效能。结果表明:使用NaCl熔盐作为造孔剂时发泡效果最好,燃烧合成产物经酸洗、水洗后得到发泡较为完整的圆球状碳泡沫,直径为100~500 nm;熔盐的加入有利于燃烧合成产物有序度的提高及泡沫形貌的改善,其中NaCl的促进效果最为显著。燃烧合成产物具有较好的电磁屏蔽性能,且在3种氯盐中,使用NaCl作为熔盐时产物的总电磁屏蔽效能最好,最高可达39.5 dB。

, authors=徐文韬1, 丁冬海1, 于新民2, 肖国庆1, 任耘1, 高云琴1, 侯星1, authorsList=徐文韬, 丁冬海, 于新民, 肖国庆, 任耘, 高云琴, 侯星, authorCompany=null, correspAuthors=丁冬海, authorNote=

徐文韬(1995—),男,硕士研究生。

, correspAuthorsNote=
丁冬海(1983—),男,副教授。
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徐文韬(1995—),男,硕士研究生。

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徐文韬(1995—),男,硕士研究生。

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熔盐辅助燃烧合成碳泡沫及其电磁屏蔽性能
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徐文韬 1 , 丁冬海 1 , 于新民 2 , 肖国庆 1 , 任耘 1 , 高云琴 1 , 侯星 1
硅酸盐学报 | 2020,48(5): 768-776
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硅酸盐学报 | 2020 , 48 (5) : 768 -776
熔盐辅助燃烧合成碳泡沫及其电磁屏蔽性能
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徐文韬1 , 丁冬海1 , 于新民2, 肖国庆1, 任耘1, 高云琴1, 侯星1
作者信息
  • 1.西安建筑科技大学材料科学与工程学院,西安 710055
  • 2.航天特种材料及工艺技术研究所,北京 100074
通讯作者:
丁冬海(1983—),男,副教授。
作者简介:

徐文韬(1995—),男,硕士研究生。

Molten Salt-assisted Combustion Synthesis of Carbon Foam and its Electromagnetic Shielding Performance
Wentao XU1 , Donghai DING1 , Xinmin YU2, Guoqing XIAO1, Yun REN1, Yunqin GAO1, Xing HOU1
Affiliations
  • 1.College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055 , China
  • 2.Research Institute of Aerospace Special Materials and Processing Technology, Beijing 100074 , China
  • Corresponding Author:
    DING Donghai (1983-), male, Associate Professor. E-mail:

    XU Wentao (1995-), male, Master candidate. E-mail:

出版时间: 2020-05-20 doi: 10.14062/j.issn.0454-5648.2020.05.20190693
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以聚氯乙烯(PVC)为原料,金属镁粉(Mg)为还原剂,二茂铁(Fc)为催化剂,不同种类的熔盐(NaCl,KCl,MgCl2)为造孔剂,采用熔盐辅助燃烧合成法制备了碳泡沫。采用X射线衍射、扫描电子显微镜、Raman光谱仪、比表面积分析仪等对产物进行了表征;以燃烧合成的碳泡沫为吸收剂,石蜡为结合剂,采用矩形波导法测试试样在8.2~12.4 GHz频率范围内的电磁屏蔽效能。结果表明:使用NaCl熔盐作为造孔剂时发泡效果最好,燃烧合成产物经酸洗、水洗后得到发泡较为完整的圆球状碳泡沫,直径为100~500 nm;熔盐的加入有利于燃烧合成产物有序度的提高及泡沫形貌的改善,其中NaCl的促进效果最为显著。燃烧合成产物具有较好的电磁屏蔽性能,且在3种氯盐中,使用NaCl作为熔盐时产物的总电磁屏蔽效能最好,最高可达39.5 dB。

燃烧合成  /  熔盐  /  碳泡沫  /  电磁屏蔽

Carbon foams were prepared via molten salt-assisted combustion synthesis with polyvinyl chloride (PVC) as a carbon source, magnesium powder (Mg) as a reducing agent, ferrocene (Fc) as a catalyst and different kinds of molten salts (i.e., NaCl, KCl, and MgCl2) as a porogen. The products were characterized by X-ray diffraction, scanning electron microscopy, Raman spectroscopy and specific surface area measurement. The electromagnetic shielding specimens were prepared with carbon foam as an absorbent and paraffin as a binder. The electromagnetic shielding effectiveness of the samples in the frequency range of 8.2-12.4 GHz was tested by a rectangular waveguide method. The results show that the optimum foaming effect is achieved when NaCl is used as a porogen, and the well-developed hollow spherical carbon foams with the pore sizes of 100-500 nm are obtained after washing and leaching. Molten salts have a positive effect on the graphitization degree and micro-morphology of carbon foams, in which NaCl shows an optimum accelerating-effect. The combustion synthesized products have a good electromagnetic shielding performance. The carbon foams with NaCl as a molten salt have an optimum electromagnetic shielding efficiency (i.e., up to 39.5 dB).

combustion synthesis  /  molten salt  /  carbon foam  /  electromagnetic shielding
徐文韬, 丁冬海, 于新民, 肖国庆, 任耘, 高云琴, 侯星. 熔盐辅助燃烧合成碳泡沫及其电磁屏蔽性能. 硅酸盐学报, 2020 , 48 (5) : 768 -776 . DOI: 10.14062/j.issn.0454-5648.2020.05.20190693
Wentao XU, Donghai DING, Xinmin YU, Guoqing XIAO, Yun REN, Yunqin GAO, Xing HOU. Molten Salt-assisted Combustion Synthesis of Carbon Foam and its Electromagnetic Shielding Performance[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (5) : 768 -776 . DOI: 10.14062/j.issn.0454-5648.2020.05.20190693
  • 国家自然科学基金(51502236; 51572212; 51772236)
  • 陕西省教育厅重点实验室科研计划项目(15JS053)
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2020年第48卷第5期
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doi: 10.14062/j.issn.0454-5648.2020.05.20190693
  • 接收时间:2019-10-21
  • 首发时间:2026-10-29
  • 出版时间:2020-05-20
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  • 收稿日期:2019-10-21
  • 修回日期:2019-11-21
基金
国家自然科学基金(51502236; 51572212; 51772236)
陕西省教育厅重点实验室科研计划项目(15JS053)
作者信息
    1.西安建筑科技大学材料科学与工程学院,西安 710055
    2.航天特种材料及工艺技术研究所,北京 100074

通讯作者:

丁冬海(1983—),男,副教授。
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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