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Mechanical Properties and Enhancement Mechanism of Oil-Well Cement Stone Reinforced with Carbon Fiber Surfaces Treated by Concentrated Nitric Acid and Sodium Hypochlorite
Joint Authors
Zhang, Chi
Yu, Yongjin
Fu, Jiawen
Qi, Fengzhong
Li, Ming
Yang, Junlan
Source
International Journal of Polymer Science
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-11-18
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
In this study, carbon fibers (CFs) were used as toughening materials to improve the mechanical properties of cement stone.
The surfaces of the CFs were treated with concentrated nitric acid and sodium hypochlorite to increase the interfacial adhesion between the CFs and the cement.
The CFs subjected to surface treatment were evaluated by scanning electron microscopy and infrared analysis to find a significant increase in the number of oxygen-containing groups on the surface.
The CFs subjected to surface treatment were added to the cement matrix.
The effect of the modified CFs on the mechanical properties of the cement matrix was evaluated by testing the means of mechanical properties.
The maximum tensile strength, maximum compressive strength, and ultimate strain of the enhanced cement stone of the CFs treated with sodium hypochlorite increased by 68.2%, 12.0%, and 4.4%, respectively.
The maximum tensile strength, maximum compressive strength, and ultimate strain of the enhanced cement stone of the CFs treated with concentrated nitric acid increased by 72.7%, 14.7%, and 4.5%, respectively.
The addition of CFs to the cement stone exerted no effect on the type of cement hydration products, as determined by infrared analysis and X-ray diffraction.
The toughening mechanism of the modified CFs added to the cement stone was ultimately explored, and the bridging effect, deflection effect, and pull-out effect of cracks were evaluated.
American Psychological Association (APA)
Yu, Yongjin& Fu, Jiawen& Zhang, Chi& Qi, Fengzhong& Li, Ming& Yang, Junlan. 2020. Mechanical Properties and Enhancement Mechanism of Oil-Well Cement Stone Reinforced with Carbon Fiber Surfaces Treated by Concentrated Nitric Acid and Sodium Hypochlorite. International Journal of Polymer Science،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1173881
Modern Language Association (MLA)
Yu, Yongjin…[et al.]. Mechanical Properties and Enhancement Mechanism of Oil-Well Cement Stone Reinforced with Carbon Fiber Surfaces Treated by Concentrated Nitric Acid and Sodium Hypochlorite. International Journal of Polymer Science No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1173881
American Medical Association (AMA)
Yu, Yongjin& Fu, Jiawen& Zhang, Chi& Qi, Fengzhong& Li, Ming& Yang, Junlan. Mechanical Properties and Enhancement Mechanism of Oil-Well Cement Stone Reinforced with Carbon Fiber Surfaces Treated by Concentrated Nitric Acid and Sodium Hypochlorite. International Journal of Polymer Science. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1173881
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1173881