Reinforcing effect of nanosilica on polypropylene–nylon fibre composite

Jacob, Sinto; Suma, K. K.; Méndez, J M; George, K. E.

doi:10.1016/j.mseb.2009.11.025

Cited by 32 publications

(21 citation statements)

References 7 publications

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“…In this section, an effort has been made to correlate the experimental moduli of nano, micro, and hybrid composites with various theoretical models . Some of the important assumptions made by these theoretical models are (a) perfect bonding between the matrix and the filler; (b) fillers are perfectly aligned and matrix properties are not affected with filler inclusion; (c) uniform and homogeneous dispersion of fillers with no agglomerates; and (d) isotropic nature of fillers and matrix .…”

Section: Resultsmentioning

confidence: 99%

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Mechanical and Thermal Properties Modeling, Sorption Characteristics of Multiscale (Multiwalled Carbon Nanotubes/Glass Fiber) Filler Reinforced Polypropylene Composites

Rasana

Jayanarayanan

Pavithra

et al. 2019

Vinyl Additive Technology

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The present work was aimed to investigate the individual and hybrid reinforcement effect of multiscale fillers [glass fibers (GF)/multiwalled carbon nanotubes (MWCNTs)] in polypropylene (PP) matrix. The MWCNT content in the hybrid composites was varied from 0.5 to 5 wt%, and glass fiber fraction was fixed as 20 wt%. The morphology of nano and hybrid composite revealed reasonable dispersion of MWCNTs and glass fibers in the matrix. At a MWCNT content of 3 wt%, the optimum tensile properties for the hybrid composites were achieved and beyond which it declined due to agglomeration effects as revealed by transmission electron microscopy. A comparative study of the experimental and predicted values of moduli of nano, micro, and hybrid composites using various micromechanical models was conducted. The simultaneous incorporation of MWCNTs and glass fibers in PP restricted the mobility of polymer chains as indicated by the increase in storage modulus and rise in glass transition temperature obtained by dynamic mechanical analysis. The differential scanning calorimetry studies indicated that the inclusion of 2 wt% of MWCNTs increased the crystallinity of PP from 58.2 to 69.1% in hybrid composites. The Avrami and Mo models were used to explore nonisothermal crystallization kinetics, and Mo model was in close agreement with the experimental results. The sorption behavior of the composites revealed that the formation of immobilized regions developed by the simultaneous inclusion of micro and nano fillers delayed the transport of the solvent. J. VINYL ADDIT. TECHNOL., 25:E94–E107, 2019. © 2019 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 99%

“…The models developed by Halpin–Tsai and Mori‐Tanaka for filler reinforced polymeric composites are given by Eqs. 3 and 4.

\frac{E_{C}}{E_{m}} = \frac{1 + italicξηϕ}{1 - italicηϕ}

η = \frac{\frac{E_{f}}{E_{m}} - 1}{\frac{E_{f}}{E_{m}} + ξ}

…”

Section: Resultsmentioning

confidence: 99%

Mechanical and Thermal Properties Modeling, Sorption Characteristics of Multiscale (Multiwalled Carbon Nanotubes/Glass Fiber) Filler Reinforced Polypropylene Composites

Rasana

Jayanarayanan

Pavithra

et al. 2019

Vinyl Additive Technology

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“…Nanocomposites have higher optical application [3] and barrier properties [4]. In addition to the reinforcing abilities of nanofillers [5], for the system containing two polymers, nano-sized filler such as nanosilica [6], nanoclay [7], and carbon black [8] have been reported to have unique influence on the morphology of immiscible blends. It has been reported that nanosilica [9] and nanoclay [10] can act as compatibilizer for the immiscible polymer blends.…”

Section: Introductionmentioning

confidence: 99%

Effect of nanosilica and polyphosphazene elastomer on the in situ fibrillation of liquid crystalline polymer (LCP) and thermo-mechanical properties of polybutylene terephthalate (PBT)/LCP blend system

et al. 2012

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“…Some nanocomposite materials have been shown to be several times tougher and improved thermal and mechanical property than the bulk component materials. [13][14][15][16] Nanosized filler such as nanosilica, nanoclay, carbon black have been reported to have unique influence on property development. [17][18] Graphene, a single-layered two-dimensional structure, is regarded as the strongest material to date by theoretical (Young's modulus ∼ 1000 GPa) and experimental results [19][20] and promises a diverse range of applications from composite materials to quantum dots.…”

Section: Introductionmentioning

confidence: 99%

Effect of Graphene Modification on Thermo-Mechanical and Microwave Absorption Properties of Polystyrene/Graphene Nanocomposites

Hatui¹,

Das²

2012

j nanosci nanotechnol

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In the present study the effect of graphene percentage and graphene modification on the microwave absorption properties of the polystyrene/graphene nanocomposites was studied in detail. Acid modified graphene was prepared by the mixed acid route. Polystyrene/graphene nanocomposites with various percentages of graphene and modified graphene were prepared by solution mixing process. The dispersion of graphene sheets in the polystyrene matrix was analyzed by TEM and SEM and found to be uniform for the 1%, 2 wt% of graphene and 1 wt% of modified graphene loading. Microwave absorption of modified graphene containing nanocomposite was found to be superior among the nanocomposites. Incorporation of 1 wt% of ferrite particles enhanced the microwave absorption of the nanocomposite above all the nanocomposites, in the whole range of X-band, due to the effective cancellation of both electrical and magnetic components of the microwave. Incorporation of graphene enhanced the thermal and mechanical properties of the nanocomposites.

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Reinforcing effect of nanosilica on polypropylene–nylon fibre composite

Cited by 32 publications

References 7 publications

Mechanical and Thermal Properties Modeling, Sorption Characteristics of Multiscale (Multiwalled Carbon Nanotubes/Glass Fiber) Filler Reinforced Polypropylene Composites

Mechanical and Thermal Properties Modeling, Sorption Characteristics of Multiscale (Multiwalled Carbon Nanotubes/Glass Fiber) Filler Reinforced Polypropylene Composites

Effect of nanosilica and polyphosphazene elastomer on the in situ fibrillation of liquid crystalline polymer (LCP) and thermo-mechanical properties of polybutylene terephthalate (PBT)/LCP blend system

Effect of Graphene Modification on Thermo-Mechanical and Microwave Absorption Properties of Polystyrene/Graphene Nanocomposites

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