Mechanical properties of hybrid SiC/CNT filled toughened epoxy nanocomposite

S. Ratim, Sahrim Ahmad, N. N. Bonnia, Sabrina M. Yahaya

Research output: Contribution to journalConference article

Abstract

Mechanical properties of epoxy nanocomposites filled single filler have been extensively studied by various researchers. However, there are not much discovery on the behavior of hybrid nanocomposite. In this study, single and hybrid nanocomposites of toughened epoxy filled CNT/SiC nanoparticles were investigated. The hybrid nanocomposites samples were prepared by combining CNT and SiC nanoparticles in toughened epoxy matrix via mechanical stirring method assisted with ultrasonic cavitations. Epoxy resin and liquid epoxidized natural rubber (LENR) mixture were first blend prior to the addition of nanofillers. Then, the curing process of the nanocomposite samples were conducted by compression molding technique at 130°C for 2 hours. The purpose of this study is to investigate the hybridization effect of CNT and SiC nanoparticles on mechanical properties toughened epoxy matrix. The total loading of single and hybrid nanofillers were fixed to 4% volume are 0, 4C, 4S, 3S1C, 2S2C, and 1S3C. Mechanical properties of hybrid composites show that the highest value of tensile strength achieved by 3S1C sample at about 7% increment and falls between their single composite values. Meanwhile, the stiffness of the same sample is significantly increased at about 31% of the matrix. On the other hand, a highest flexural property is obtained by 1S3C sample at about 20% increment dominated by CNT content. However, the impact strength shows reduction trend with the addition of SiC and CNT into the matrix. The hybridization of SiC and CNT show highest value in sample 1S3C at about 3.37 kJ/m2 of impact energy absorbed. FESEM micrograph have confirmed that better distributions and interaction observed between SiC nanoparticles and matrix compared to CNT, which contributed to higher tensile strength and modulus.

Original languageEnglish
Article number012005
JournalIOP Conference Series: Materials Science and Engineering
Volume290
Issue number1
DOIs
Publication statusPublished - 30 Jan 2018
EventInternational Conference on Advances in Manufacturing and Materials Engineering 2017, ICAMME 2017 - Kuala Lumpur, Malaysia
Duration: 8 Aug 20179 Aug 2017

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Nanocomposites
Mechanical properties
Nanoparticles
Tensile strength
Epoxy Resins
Compression molding
Rubber
Composite materials
Impact strength
Cavitation
Epoxy resins
Curing
Fillers
Elastic moduli
Ultrasonics
Stiffness
Liquids

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this

Mechanical properties of hybrid SiC/CNT filled toughened epoxy nanocomposite. / Ratim, S.; Ahmad, Sahrim; Bonnia, N. N.; Yahaya, Sabrina M.

In: IOP Conference Series: Materials Science and Engineering, Vol. 290, No. 1, 012005, 30.01.2018.

Research output: Contribution to journalConference article

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abstract = "Mechanical properties of epoxy nanocomposites filled single filler have been extensively studied by various researchers. However, there are not much discovery on the behavior of hybrid nanocomposite. In this study, single and hybrid nanocomposites of toughened epoxy filled CNT/SiC nanoparticles were investigated. The hybrid nanocomposites samples were prepared by combining CNT and SiC nanoparticles in toughened epoxy matrix via mechanical stirring method assisted with ultrasonic cavitations. Epoxy resin and liquid epoxidized natural rubber (LENR) mixture were first blend prior to the addition of nanofillers. Then, the curing process of the nanocomposite samples were conducted by compression molding technique at 130°C for 2 hours. The purpose of this study is to investigate the hybridization effect of CNT and SiC nanoparticles on mechanical properties toughened epoxy matrix. The total loading of single and hybrid nanofillers were fixed to 4{\%} volume are 0, 4C, 4S, 3S1C, 2S2C, and 1S3C. Mechanical properties of hybrid composites show that the highest value of tensile strength achieved by 3S1C sample at about 7{\%} increment and falls between their single composite values. Meanwhile, the stiffness of the same sample is significantly increased at about 31{\%} of the matrix. On the other hand, a highest flexural property is obtained by 1S3C sample at about 20{\%} increment dominated by CNT content. However, the impact strength shows reduction trend with the addition of SiC and CNT into the matrix. The hybridization of SiC and CNT show highest value in sample 1S3C at about 3.37 kJ/m2 of impact energy absorbed. FESEM micrograph have confirmed that better distributions and interaction observed between SiC nanoparticles and matrix compared to CNT, which contributed to higher tensile strength and modulus.",
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