Effect of Surface Functionalization of SiO2 Nanoparticles on the Dynamic Mechanical, Thermal and Fire Properties of Wheat Straw/LDPE Composites

Kord, Behzad; Ghalehno, Mohammad Dahmardeh; Movahedi, Farnaz

doi:10.1007/s10924-019-01576-y

Cited by 19 publications

(14 citation statements)

References 40 publications

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“…Nanofillers are replacing traditional microscale filler materials. The homogeneous and uniform distribution of nanoparticles in the BCs accelerates the mechanical, thermal, and molecular movability [17]. In the case of NBC production, the larger aspect ratio of nanofillers provides better reinforcements, which is why researchers are becoming more and more interested in such material.…”

Section: Introductionmentioning

confidence: 99%

Potential Natural Fiber Polymeric Nanobiocomposites: A Review

2020

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Composite materials reinforced with biofibers and nanomaterials are becoming considerably popular, especially for their light weight, strength, exceptional stiffness, flexural rigidity, damping property, longevity, corrosion, biodegradability, antibacterial, and fire-resistant properties. Beside the traditional thermoplastic and thermosetting polymers, nanoparticles are also receiving attention in terms of their potential to improve the functionality and mechanical performances of biocomposites. These remarkable characteristics have made nanobiocomposite materials convenient to apply in aerospace, mechanical, construction, automotive, marine, medical, packaging, and furniture industries, through providing environmental sustainability. Nanoparticles (TiO2, carbon nanotube, rGO, ZnO, and SiO2) are easily compatible with other ingredients (matrix polymer and biofibers) and can thus form nanobiocomposites. Nanobiocomposites are exhibiting a higher market volume with the expansion of new technology and green approaches for utilizing biofibers. The performances of nanobiocomposites depend on the manufacturing processes, types of biofibers used, and the matrix polymer (resin). An overview of different natural fibers (vegetable/plants), nanomaterials, biocomposites, nanobiocomposites, and manufacturing methods are discussed in the context of potential application in this review.

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Section: Introductionmentioning

confidence: 99%

Potential Natural Fiber Polymeric Nanobiocomposites: A Review

2020

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“…These could decrease the bonding between matrix and particles. On the other hand, the motion of molecular chains also increased 12,13,37 . Hence, the composites with high content of SiO 2 particles showed decreased T g s. In sum, the stiffness of the composites could be enhanced by addition of SiO 2 particles into BA‐ph/CE matrix and the T g s of the composites could be decreased when the high mass fraction of SiO 2 particles was introduced into matrix resin.…”

Section: Resultsmentioning

confidence: 90%

Investigation on curing reaction of phthalonitrile resin with nanosilica and the properties of their glass fiber‐reinforced composites

Ren

Chen

et al. 2020

J of Applied Polymer Sci

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In this work, Phthalonitrile containing benzoxazine (BA-ph) and Bisphenol A based cyanate ester (CE) were chosen as the matrix resin. Various amount of nano-SiO 2 was incorporated into BA-ph/CE and their glass fiber-reinforced composite laminates were fabricated. Curing reaction and processability of BA-ph/CE/SiO 2 blends were studied by differential scanning calorimetry and dynamic rheological analysis. Results showed that BA-ph and CE exhibited good processability and curing reaction of BA-ph/CE was not obviously affected by SiO 2. Scanning electron microscope images of the composites showed that SiO 2 particles were well dispersed in BA-ph/CE matrix. Moreover, SiO 2 could act as physical crosslinking points and diluent in matrix as well as between the glass fibers to improve the mechanical properties of composite laminates. As the results of dynamic mechanical analysis and thermogravimetry analysis, composite laminates possessed satisfactory T g and good thermal stability. With incorporation SiO 2 particles into matrix resin, dielectric constant and dielectric loss of BA-ph/CE/SiO 2 /GF composites were increased and showed frequency dependence. K E Y W O R D S copolymers, differential scanning calorimetry, glass transition, thermal properties 1 | INTRODUCTION High performance thermosetting resins, such as, epoxy, cyanate ester (CE), benzoxazine, phthalonitrile, bismaleimide, and so on, were widely investigated and applied in many fields. Due to the inherent brittleness of thermosetting resins, pure thermosetting resins were hardly used as structural, substrate, or functional materials. In order to improve the brittleness of thermosetting resins, continuous fiber, nanoparticles were widely applied to reinforce the thermosetting resins to fabricate composites with enhanced properties. 1-4 Compared with that of traditional inorganic metal materials, fiber

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“…These amine groups will interact with opposing fluorine groups of the PVDF matrix to enhance the nucleation effect. The strong interaction of amine moieties with the negative fluorine group will reinforce the polymer chains immobilization over the ZnO surface …”

Section: Results and Discussionmentioning

confidence: 99%

Zinc Oxide Nanoparticles Coated with (3-Aminopropyl)triethoxysilane as Additives for Boosting the Dielectric, Ferroelectric, and Piezoelectric Properties of Poly(vinylidene fluoride) Films for Energy Harvesting

Chandran

Varun

Karumuthil

et al. 2021

ACS Appl. Nano Mater.

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In this study, we report the synergistic role of (3-aminopropyl)triethoxysilane (APTES) functionalization of zinc oxide (ZnO) nanoparticles and low-temperature phase-inversion for boosting the polar β-phase of the poly(vinylidene fluoride) (PVDF) nanocomposite. The electroactive crystal phase was investigated with Fourier transform infrared, wide-angle X-ray diffraction, differential scanning calorimetry, dielectric spectroscopy, and dynamic contact mode electrostatic force microscopy. Our results confirm an enhanced polar β-phase and crystallinity, which inherently boosted the overall dielectric, ferroelectric, and piezoelectric properties of the PVDF/ZnO-APTES nanocomposite. The energy-harvesting potential of the nanocomposite was investigated by fabricating a piezoelectric device. The fabricated device with a high electroactive phase (PDVF/ZnO-APTES) exhibited a voltage of 125 V and an instantaneous output power density of ∼83 mW/cm 3 . The fabricated device can glow 8 lightemitting diodes (LEDs), blink 50 LEDs and could be a potential candidate for energy-scavenging applications.

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Effect of Surface Functionalization of SiO2 Nanoparticles on the Dynamic Mechanical, Thermal and Fire Properties of Wheat Straw/LDPE Composites

Cited by 19 publications

References 40 publications

Potential Natural Fiber Polymeric Nanobiocomposites: A Review

Potential Natural Fiber Polymeric Nanobiocomposites: A Review

Investigation on curing reaction of phthalonitrile resin with nanosilica and the properties of their glass fiber‐reinforced composites

Zinc Oxide Nanoparticles Coated with (3-Aminopropyl)triethoxysilane as Additives for Boosting the Dielectric, Ferroelectric, and Piezoelectric Properties of Poly(vinylidene fluoride) Films for Energy Harvesting

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