Article(id=1322943569895497872, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322942849381183980, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20200994, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1608566400000, receivedDateStr=2020-12-22, revisedDate=1615910400000, revisedDateStr=2021-03-17, acceptedDate=null, acceptedDateStr=null, onlineDate=1793343926166, onlineDateStr=2026-10-30, pubDate=1634659200000, pubDateStr=2021-10-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793343926166, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793343926166, creator=13701087609, updateTime=1793343926166, updator=13701087609, issue=Issue{id=1322942849381183980, tenantId=1146029695717560320, journalId=1263187385517883426, year='2021', volume='49', issue='10', pageStart='2045', pageEnd='2312', issueExtLink='null', onlineDate='null', pubDate='1634659200000', pubDateStr='2021-10-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793343754382, creator='13701087609', updateTime=1793345931656, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322951981580562527, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322942849381183980, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322951981584756832, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322942849381183980, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=2286, endPage=2297, ext={EN=ArticleExt(id=1322943570084241553, articleId=1322943569895497872, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Mechanical Properties of Cement Stone with Modified CaSO4 Whisker, columnId=null, journalTitle=Journal of the Chinese Ceramic Society, columnName=null, runingTitle=null, highlight=null, articleAbstract=

In order to further improve the mechanical properties of the cement stone with CaSO4 whisker, the surface of the whisker was modified via tetraethylorthosilicate (TEOS) to improve the interface bonding property between the whisker and the cement stone. The surface composition and properties of the modified CaSO4 whisker were investigated by Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, contact angle measurement. The results show that the hydrolysate of TEOS reacts with the hydroxyl groups on the surface of CaSO4 whisker and forms the stable amorphous SiO2 on the surface of CaSO4 whisker. Based on the results by mechanical properties test, the modified CaSO4 whisker can further improve the mechanical properties of cement. The microstructure of the interface between the whisker and the cement material, the hydration products, the structure of the cement stone, were analyzed by scanning electron microscopy and pore size distribution test, which reveals the action mechanism of modified CaSO4 whisker reinforced cement. Since SiO2 coated on the surface of the modified CaSO4 whisker reacts with the free Ca(OH)2 in cement-based material, thus promoting the formation of more hydration products, such as calcium silicate hydrate gel chain (C-S-H), as well as makes the whiskers tightly wrapped by hydration products, thus enhancing the bonding effect between the whiskers and cement-based materials and causing more energy consumed during the development of crack. Also, the hydration reaction can improve the compactness of the cement structure, further enhancing the mechanical properties of cement.

, authors=Bojian ZHANG1, Zhigang PENG1, Qian FENG1, Changjun ZOU1, Jian ZHANG2, authorsList=Bojian ZHANG, Zhigang PENG, Qian FENG, Changjun ZOU, Jian ZHANG, authorCompany=null, correspAuthors=Zhigang PENG, authorNote=

ZHANG Bojian (1993-), male, Doctoral candidate. E-mail:

, correspAuthorsNote=
PENG Zhigang (1976-), male, Ph.D., Professor. E-mail:
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为了提高CaSO4晶须-水泥石的力学性能,采用正硅酸乙酯(TEOS)对晶须表面进行处理,改善晶须与水泥石间的界面。通过红外光谱仪、扫描电子显微镜、X射线衍射仪、X射线光电子能谱仪及接触角测试仪研究了改性CaSO4晶须表面的组成与特性。结果表明,正硅酸乙酯的水解产物与CaSO4晶须表面的羟基发生反应,在CaSO4晶须表面形成了稳定的、无定形态的SiO2。力学性能测试结果表明,改性CaSO4晶须能进一步提高水泥石的力学性能。通过扫描电子显微镜、孔径分布测试研究了晶须及水泥材料界面的微观结构、水化产物和水泥石的结构,揭示了改性CaSO4晶须增强水泥石的作用机理。改性CaSO4晶须表面包覆的SiO2与水泥基材料中游离的Ca(OH)2发生水化反应,促进更多水化产物如水化硅酸钙凝胶(C-S-H)的形成,使得晶须被周围水化产物紧密包裹,增强了晶须与水泥基材料之间的界面黏结作用,迫使裂缝在发展的过程中消耗更多的能量。并且,水化反应的进行也提高了水泥石结构的致密性,从而进一步提高了水泥石的力学性能。

, authors=张博建1, 彭志刚1, 冯茜1, 邹长军1, 张健2, authorsList=张博建, 彭志刚, 冯茜, 邹长军, 张健, authorCompany=null, correspAuthors=彭志刚, authorNote=

张博建(1993—),男,博士研究生。

, correspAuthorsNote=
彭志刚(1976—),男,博士,教授级高工。
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含有改性CaSO4晶须的固井水泥石的力学性能
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张博建 1 , 彭志刚 1 , 冯茜 1 , 邹长军 1 , 张健 2
硅酸盐学报 | 2021,49(10): 2286-2297
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硅酸盐学报 | 2021 , 49 (10) : 2286 -2297
含有改性CaSO4晶须的固井水泥石的力学性能
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张博建1 , 彭志刚1 , 冯茜1, 邹长军1, 张健2
作者信息
  • 1.西南石油大学化学化工学院,成都 610500
  • 2.川庆钻探钻采工程技术研究院,陕西 西安 710018
通讯作者:
彭志刚(1976—),男,博士,教授级高工。
作者简介:

张博建(1993—),男,博士研究生。

Mechanical Properties of Cement Stone with Modified CaSO4 Whisker
Bojian ZHANG1 , Zhigang PENG1 , Qian FENG1, Changjun ZOU1, Jian ZHANG2
Affiliations
  • 1.School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China
  • 2.Drilling and Production Engineering Technology Research Institute of Chuanqing Drilling Engineering Co., Ltd, Xi'an 710018, Shanxi, China
  • Corresponding Author:
    PENG Zhigang (1976-), male, Ph.D., Professor. E-mail:

    ZHANG Bojian (1993-), male, Doctoral candidate. E-mail:

出版时间: 2021-10-20 doi: 10.14062/j.issn.0454-5648.20200994
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为了提高CaSO4晶须-水泥石的力学性能,采用正硅酸乙酯(TEOS)对晶须表面进行处理,改善晶须与水泥石间的界面。通过红外光谱仪、扫描电子显微镜、X射线衍射仪、X射线光电子能谱仪及接触角测试仪研究了改性CaSO4晶须表面的组成与特性。结果表明,正硅酸乙酯的水解产物与CaSO4晶须表面的羟基发生反应,在CaSO4晶须表面形成了稳定的、无定形态的SiO2。力学性能测试结果表明,改性CaSO4晶须能进一步提高水泥石的力学性能。通过扫描电子显微镜、孔径分布测试研究了晶须及水泥材料界面的微观结构、水化产物和水泥石的结构,揭示了改性CaSO4晶须增强水泥石的作用机理。改性CaSO4晶须表面包覆的SiO2与水泥基材料中游离的Ca(OH)2发生水化反应,促进更多水化产物如水化硅酸钙凝胶(C-S-H)的形成,使得晶须被周围水化产物紧密包裹,增强了晶须与水泥基材料之间的界面黏结作用,迫使裂缝在发展的过程中消耗更多的能量。并且,水化反应的进行也提高了水泥石结构的致密性,从而进一步提高了水泥石的力学性能。

硫酸钙晶须  /  改性晶须  /  界面黏结性能  /  增强增韧  /  力学性能

In order to further improve the mechanical properties of the cement stone with CaSO4 whisker, the surface of the whisker was modified via tetraethylorthosilicate (TEOS) to improve the interface bonding property between the whisker and the cement stone. The surface composition and properties of the modified CaSO4 whisker were investigated by Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, contact angle measurement. The results show that the hydrolysate of TEOS reacts with the hydroxyl groups on the surface of CaSO4 whisker and forms the stable amorphous SiO2 on the surface of CaSO4 whisker. Based on the results by mechanical properties test, the modified CaSO4 whisker can further improve the mechanical properties of cement. The microstructure of the interface between the whisker and the cement material, the hydration products, the structure of the cement stone, were analyzed by scanning electron microscopy and pore size distribution test, which reveals the action mechanism of modified CaSO4 whisker reinforced cement. Since SiO2 coated on the surface of the modified CaSO4 whisker reacts with the free Ca(OH)2 in cement-based material, thus promoting the formation of more hydration products, such as calcium silicate hydrate gel chain (C-S-H), as well as makes the whiskers tightly wrapped by hydration products, thus enhancing the bonding effect between the whiskers and cement-based materials and causing more energy consumed during the development of crack. Also, the hydration reaction can improve the compactness of the cement structure, further enhancing the mechanical properties of cement.

calcium sulfate whisker  /  modified whisker  /  interfacial bonding performance  /  enhancement and toughening  /  mechanical properties
张博建, 彭志刚, 冯茜, 邹长军, 张健. 含有改性CaSO4晶须的固井水泥石的力学性能. 硅酸盐学报, 2021 , 49 (10) : 2286 -2297 . DOI: 10.14062/j.issn.0454-5648.20200994
Bojian ZHANG, Zhigang PENG, Qian FENG, Changjun ZOU, Jian ZHANG. Mechanical Properties of Cement Stone with Modified CaSO4 Whisker[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (10) : 2286 -2297 . DOI: 10.14062/j.issn.0454-5648.20200994
  • 四川省重点项目“四川盆地干热岩地热资源开发固井用高温水泥研究”(2019YJ0313)
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doi: 10.14062/j.issn.0454-5648.20200994
  • 接收时间:2020-12-22
  • 首发时间:2026-10-30
  • 出版时间:2021-10-20
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  • 收稿日期:2020-12-22
  • 修回日期:2021-03-17
基金
四川省重点项目“四川盆地干热岩地热资源开发固井用高温水泥研究”(2019YJ0313)
作者信息
    1.西南石油大学化学化工学院,成都 610500
    2.川庆钻探钻采工程技术研究院,陕西 西安 710018

通讯作者:

彭志刚(1976—),男,博士,教授级高工。
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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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