Article(id=1319986872777028086, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319986871980118160, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20210374, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1620748800000, receivedDateStr=2021-05-12, revisedDate=1628784000000, revisedDateStr=2021-08-13, acceptedDate=null, acceptedDateStr=null, onlineDate=1792638994640, onlineDateStr=2026-10-22, pubDate=1652976000000, pubDateStr=2022-05-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792638994640, onlineIssueDateStr=2026-10-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792638994640, creator=13701087609, updateTime=1792638994640, updator=13701087609, issue=Issue{id=1319986871980118160, tenantId=1146029695717560320, journalId=1263187385517883426, year='2022', volume='50', issue='5', pageStart='1201', pageEnd='1454', issueExtLink='null', onlineDate='null', pubDate='1652976000000', pubDateStr='2022-05-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1792638994450, creator='13701087609', updateTime=1792639285419, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1319988092451275233, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319986871980118160, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1319988092451275234, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319986871980118160, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1316, endPage=1324, ext={EN=ArticleExt(id=1319986874479915511, articleId=1319986872777028086, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Preparation and Properties of Silica Aerogels Reinforced Carbon Foam Composites, columnId=1263922769897599102, journalTitle=Journal of the Chinese Ceramic Society, columnName=Research Articles, runingTitle=null, highlight=null, articleAbstract=

Carbon foam composites with a unique porous structure can be widely used in the fields of thermal insulation, energy storage, and absorption. In order to improve their mechanical and thermal-insulation properties, carbon foam composites were modified. Silica (SiO2) aerogels reinforced carbon foam composites were prepared via compression molding and carbonization with zirconium modified phenolic resin as a carbon origin, SiO2 aerogels as a reinforcement, and phenolic hollow microspheres as a closed phase. The effect of SiO2 aerogels amount on the microstructure, compressive and oxidation resistance of carbon foam composites was investigated by scanning electron microscopy, universal testing machine, specific surface area analysis and pore size distribution measurement, respectively. The thermal conductivity of pure carbon foam and modified carbon foam composites were characterized by laser-flash thermal conductivity measurement, and their high-temperature heat transfer behavior was then analyzed. The results show that SiO2 aerogels disperse in the ligaments or on the surface of microspheres, and barely contribute to cell structure of carbon foams. When the SiO2 aerogels amount is 2% (in mass fraction), the maximum compressive strength and specific compressive strength both reach 19.39 MPa and 42.17 MPa·cm3/g, respectively. Compared to the pure carbon foam, the compressive strength and specific compressive strength of carbon foam are increased by 106.7% and 79.8%, respectively. A proper addition of SiO2 aerogels can restrict the heat transfer path and internal radiative heat transfer. When the SiO2 aerogels amount is 5%, carbon foam composites have the optimum thermal insulation and oxidation resistance. The thermal conductivity at 800 ℃ is 0.447 W/(m·K), which is 38.9% lower than that of pure carbon foam. The optimum oxidation resistance can be obtained, i.e., the mass loss of 18% during the isothermal oxidation at 700 ℃ for 30 min.

, authors=Bin WANG1, Xiaoyu LUO1, 2, Yijun ZHAO1, Xiaorui ZHOU1, Chenjing ZHU1, authorsList=Bin WANG, Xiaoyu LUO, Yijun ZHAO, Xiaorui ZHOU, Chenjing ZHU, authorCompany=null, correspAuthors=null, authorNote=

WANG Bin (1981-), male, Ph.D., Associate Professor. E-mail:

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碳泡沫复合材料因其特有的多孔结构,在隔热、储能、吸附等领域具有广阔的应用前景。为进一步改善其力学、隔热性能,本工作以锆改性酚醛树脂、酚醛空心微球为原料,SiO2气凝胶为增强相,通过模压成型-碳化工艺制得SiO2气凝胶改性碳泡沫复合材料。采用扫描电子显微镜、万能试验机、比表面积及孔径分布测试仪等研究了SiO2气凝胶含量对碳泡沫复合材料的微观结构、压缩强度及抗氧化性能的影响;采用热常数仪研究了改性前后碳泡沫复合材料的热导率,分析其高温传热行为。结果表明:SiO2气凝胶弥散分布在碳泡沫韧带和微球表面处,并未改变碳泡沫的泡孔结构;当SiO2气凝胶的含量为2%(质量分数)时,压缩强度和比压缩强度达到最大值,分别为19.39 MPa和42.17 MPa·cm3/g,较改性前分别提高了106.7%和79.8%。引入适量SiO2气凝胶,可阻碍热量传播路径,限制辐射传热;当其含量为5%时,碳泡沫复合材料的隔热性能与抗氧化性能最佳,800 ℃的热导率仅为0.447 W/(m·K),较改性前降低了38.9%;700 ℃等温氧化30 min,碳泡沫质量损失为18%。

, authors=王斌1, 罗晓宇1, 2, 赵益君1, 周晓蕊1, 朱晨静1, authorsList=王斌, 罗晓宇, 赵益君, 周晓蕊, 朱晨静, authorCompany=null, correspAuthors=null, authorNote=

王斌(1981—),男,博士,副教授。

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WANG Bin (1981-), male, Ph.D., Associate Professor. E-mail:

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王斌(1981—),男,博士,副教授。

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王斌(1981—),男,博士,副教授。

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SiO2气凝胶增强碳泡沫复合材料的制备工艺及性能
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王斌 1 , 罗晓宇 1, 2 , 赵益君 1 , 周晓蕊 1 , 朱晨静 1
硅酸盐学报 | 研究论文 2022,50(5): 1316-1324
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硅酸盐学报 |研究论文 2022 , 50 (5) : 1316 -1324
SiO2气凝胶增强碳泡沫复合材料的制备工艺及性能
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王斌1 , 罗晓宇1, 2, 赵益君1, 周晓蕊1, 朱晨静1
作者信息
  • 1.西安工程大学材料工程学院,西安 710048
  • 2.陕西航空电气有限责任公司,陕西 咸阳 713107
作者简介:

王斌(1981—),男,博士,副教授。

Preparation and Properties of Silica Aerogels Reinforced Carbon Foam Composites
Bin WANG1 , Xiaoyu LUO1, 2, Yijun ZHAO1, Xiaorui ZHOU1, Chenjing ZHU1
Affiliations
  • 1.School of Materials Science and Engineering, Xi'an Polytechnic University, Xi'an 710048, China
  • 2.Shannxi Aero Electric Co., Ltd, Xianyang 713107, Shannxi, China
  • WANG Bin (1981-), male, Ph.D., Associate Professor. E-mail:

出版时间: 2022-05-20 doi: 10.14062/j.issn.0454-5648.20210374
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碳泡沫复合材料因其特有的多孔结构,在隔热、储能、吸附等领域具有广阔的应用前景。为进一步改善其力学、隔热性能,本工作以锆改性酚醛树脂、酚醛空心微球为原料,SiO2气凝胶为增强相,通过模压成型-碳化工艺制得SiO2气凝胶改性碳泡沫复合材料。采用扫描电子显微镜、万能试验机、比表面积及孔径分布测试仪等研究了SiO2气凝胶含量对碳泡沫复合材料的微观结构、压缩强度及抗氧化性能的影响;采用热常数仪研究了改性前后碳泡沫复合材料的热导率,分析其高温传热行为。结果表明:SiO2气凝胶弥散分布在碳泡沫韧带和微球表面处,并未改变碳泡沫的泡孔结构;当SiO2气凝胶的含量为2%(质量分数)时,压缩强度和比压缩强度达到最大值,分别为19.39 MPa和42.17 MPa·cm3/g,较改性前分别提高了106.7%和79.8%。引入适量SiO2气凝胶,可阻碍热量传播路径,限制辐射传热;当其含量为5%时,碳泡沫复合材料的隔热性能与抗氧化性能最佳,800 ℃的热导率仅为0.447 W/(m·K),较改性前降低了38.9%;700 ℃等温氧化30 min,碳泡沫质量损失为18%。

碳泡沫  /  二氧化硅气凝胶  /  热性能  /  压缩强度

Carbon foam composites with a unique porous structure can be widely used in the fields of thermal insulation, energy storage, and absorption. In order to improve their mechanical and thermal-insulation properties, carbon foam composites were modified. Silica (SiO2) aerogels reinforced carbon foam composites were prepared via compression molding and carbonization with zirconium modified phenolic resin as a carbon origin, SiO2 aerogels as a reinforcement, and phenolic hollow microspheres as a closed phase. The effect of SiO2 aerogels amount on the microstructure, compressive and oxidation resistance of carbon foam composites was investigated by scanning electron microscopy, universal testing machine, specific surface area analysis and pore size distribution measurement, respectively. The thermal conductivity of pure carbon foam and modified carbon foam composites were characterized by laser-flash thermal conductivity measurement, and their high-temperature heat transfer behavior was then analyzed. The results show that SiO2 aerogels disperse in the ligaments or on the surface of microspheres, and barely contribute to cell structure of carbon foams. When the SiO2 aerogels amount is 2% (in mass fraction), the maximum compressive strength and specific compressive strength both reach 19.39 MPa and 42.17 MPa·cm3/g, respectively. Compared to the pure carbon foam, the compressive strength and specific compressive strength of carbon foam are increased by 106.7% and 79.8%, respectively. A proper addition of SiO2 aerogels can restrict the heat transfer path and internal radiative heat transfer. When the SiO2 aerogels amount is 5%, carbon foam composites have the optimum thermal insulation and oxidation resistance. The thermal conductivity at 800 ℃ is 0.447 W/(m·K), which is 38.9% lower than that of pure carbon foam. The optimum oxidation resistance can be obtained, i.e., the mass loss of 18% during the isothermal oxidation at 700 ℃ for 30 min.

carbon foam  /  silicon dioxide aerogels  /  thermal property  /  compressive strength
王斌, 罗晓宇, 赵益君, 周晓蕊, 朱晨静. SiO2气凝胶增强碳泡沫复合材料的制备工艺及性能. 硅酸盐学报, 2022 , 50 (5) : 1316 -1324 . DOI: 10.14062/j.issn.0454-5648.20210374
Bin WANG, Xiaoyu LUO, Yijun ZHAO, Xiaorui ZHOU, Chenjing ZHU. Preparation and Properties of Silica Aerogels Reinforced Carbon Foam Composites[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (5) : 1316 -1324 . DOI: 10.14062/j.issn.0454-5648.20210374
  • 国家自然科学基金(51802244)
  • 国家留学基金(201708610036)
  • 陕西省科技厅重点研发计划项目(2020NY-154)
  • 陕西省教育厅重点科学研究计划协同创新中心项目(20JY027)
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doi: 10.14062/j.issn.0454-5648.20210374
  • 接收时间:2021-05-12
  • 首发时间:2026-10-22
  • 出版时间:2022-05-20
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  • 收稿日期:2021-05-12
  • 修回日期:2021-08-13
基金
国家自然科学基金(51802244)
国家留学基金(201708610036)
陕西省科技厅重点研发计划项目(2020NY-154)
陕西省教育厅重点科学研究计划协同创新中心项目(20JY027)
作者信息
    1.西安工程大学材料工程学院,西安 710048
    2.陕西航空电气有限责任公司,陕西 咸阳 713107
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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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