Preparation of SiO2 coated carbon fibers and its interfacial properties with cement paste matrix
نویسندگان
چکیده
As a porous brittle material, oil well cement in and gas cementing is difficult to bear complex loads, which can easily lead the failure of mechanical integrity sheath. In this paper, SiO 2 coating-CF toughening material was obtained by modified carbon fibers (CFs) surface. addition, properties mechanism coated-CF stone were discussed. The results showed that paste are significantly improved. After 14 days curing, compressive strength reach 32.98 MPa tensile increased 162%. CF after adding surface film improves adhesion between interface fiber forming chemical bonds at bonding with paste, so as improve reinforced paste.
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ژورنال
عنوان ژورنال: Frontiers in Materials
سال: 2023
ISSN: ['2296-8016']
DOI: https://doi.org/10.3389/fmats.2023.1128054