Sol–gel template preparation of alumina nanofillers for reinforcing the epoxy resin

Abstract

Abstract: Alumina nanofibers were prepared by sol–gel template method. Carbon nanofibers (CNFs) of feather-like morphology obtained by chemical vapor deposition of C₂–C₄ hydrocarbons mixture have been used as a template. The distinctive feature of CNF is a friable disordered structure consisting of separate fragments of graphite-like phase. To simplify the sol–gel synthetic procedure, the impact of preparative conditions such as type of precursor and ratio of starting components was studied. CNFs were coated with corresponding alumina precursor and subjected to a high temperature treatment. The resulted alumina nanofibers were explored by means of scanning electron microscopy (SEM), physical nitrogen adsorption (BET), and X-ray diffraction. The optimal Al₂O₃:CNF ratio was found to be 1:6. According to SEM and BET, surface area of prepared alumina fibers 70–90Â nm in diameter lies in a range of 149–174Â m²/g. The thermal and strength properties of epoxy composites reinforced with alumina nanofibers are compared. It was demonstrated that used nanofillers affect noticeably the properties of the epoxy matrix. Graphical Abstract: [Figure not available: see fulltext.]

Original language	English
Pages (from-to)	353-361
Number of pages	9
Journal	Journal of Sol-Gel Science and Technology
Volume	80
Issue number	2
DOIs	https://doi.org/10.1007/s10971-016-4126-9
Publication status	Published - 1 Nov 2016

Keywords

Alumina nanofibers
Carbon nanofibers
Epoxy resin
Sol–gel synthesis
Template method

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Chemistry(all)
Biomaterials
Condensed Matter Physics
Materials Chemistry

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10.1007/s10971-016-4126-9

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title = "Sol–gel template preparation of alumina nanofillers for reinforcing the epoxy resin",

abstract = "Abstract: Alumina nanofibers were prepared by sol–gel template method. Carbon nanofibers (CNFs) of feather-like morphology obtained by chemical vapor deposition of C2–C4 hydrocarbons mixture have been used as a template. The distinctive feature of CNF is a friable disordered structure consisting of separate fragments of graphite-like phase. To simplify the sol–gel synthetic procedure, the impact of preparative conditions such as type of precursor and ratio of starting components was studied. CNFs were coated with corresponding alumina precursor and subjected to a high temperature treatment. The resulted alumina nanofibers were explored by means of scanning electron microscopy (SEM), physical nitrogen adsorption (BET), and X-ray diffraction. The optimal Al2O3:CNF ratio was found to be 1:6. According to SEM and BET, surface area of prepared alumina fibers 70–90{\^A} nm in diameter lies in a range of 149–174{\^A} m2/g. The thermal and strength properties of epoxy composites reinforced with alumina nanofibers are compared. It was demonstrated that used nanofillers affect noticeably the properties of the epoxy matrix. Graphical Abstract: [Figure not available: see fulltext.]",

keywords = "Alumina nanofibers, Carbon nanofibers, Epoxy resin, Sol–gel synthesis, Template method",

author = "Krivoshapkin, {Pavel V.} and Mishakov, {Ilya V.} and Krivoshapkina, {Elena F.} and Vedyagin, {Aleksey A.} and Sitnikov, {Petr A.}",

year = "2016",

month = nov,

day = "1",

doi = "10.1007/s10971-016-4126-9",

language = "English",

volume = "80",

pages = "353--361",

journal = "Journal of Sol-Gel Science and Technology",

issn = "0928-0707",

publisher = "Springer Netherlands",

number = "2",

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TY - JOUR

T1 - Sol–gel template preparation of alumina nanofillers for reinforcing the epoxy resin

AU - Krivoshapkin, Pavel V.

AU - Mishakov, Ilya V.

AU - Krivoshapkina, Elena F.

AU - Vedyagin, Aleksey A.

AU - Sitnikov, Petr A.

PY - 2016/11/1

Y1 - 2016/11/1

N2 - Abstract: Alumina nanofibers were prepared by sol–gel template method. Carbon nanofibers (CNFs) of feather-like morphology obtained by chemical vapor deposition of C2–C4 hydrocarbons mixture have been used as a template. The distinctive feature of CNF is a friable disordered structure consisting of separate fragments of graphite-like phase. To simplify the sol–gel synthetic procedure, the impact of preparative conditions such as type of precursor and ratio of starting components was studied. CNFs were coated with corresponding alumina precursor and subjected to a high temperature treatment. The resulted alumina nanofibers were explored by means of scanning electron microscopy (SEM), physical nitrogen adsorption (BET), and X-ray diffraction. The optimal Al2O3:CNF ratio was found to be 1:6. According to SEM and BET, surface area of prepared alumina fibers 70–90Â nm in diameter lies in a range of 149–174Â m2/g. The thermal and strength properties of epoxy composites reinforced with alumina nanofibers are compared. It was demonstrated that used nanofillers affect noticeably the properties of the epoxy matrix. Graphical Abstract: [Figure not available: see fulltext.]

AB - Abstract: Alumina nanofibers were prepared by sol–gel template method. Carbon nanofibers (CNFs) of feather-like morphology obtained by chemical vapor deposition of C2–C4 hydrocarbons mixture have been used as a template. The distinctive feature of CNF is a friable disordered structure consisting of separate fragments of graphite-like phase. To simplify the sol–gel synthetic procedure, the impact of preparative conditions such as type of precursor and ratio of starting components was studied. CNFs were coated with corresponding alumina precursor and subjected to a high temperature treatment. The resulted alumina nanofibers were explored by means of scanning electron microscopy (SEM), physical nitrogen adsorption (BET), and X-ray diffraction. The optimal Al2O3:CNF ratio was found to be 1:6. According to SEM and BET, surface area of prepared alumina fibers 70–90Â nm in diameter lies in a range of 149–174Â m2/g. The thermal and strength properties of epoxy composites reinforced with alumina nanofibers are compared. It was demonstrated that used nanofillers affect noticeably the properties of the epoxy matrix. Graphical Abstract: [Figure not available: see fulltext.]

KW - Alumina nanofibers

KW - Carbon nanofibers

KW - Epoxy resin

KW - Sol–gel synthesis

KW - Template method

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