Polyaniline-coated coconut fibers: Structure, properties and their use as conductive additives in matrix of polyurethane derived from castor oil

Merlini, Claudia; Barra, Guilherme Mariz de Oliveira; Schmitz, Débora Pereira; Ramôa, Sílvia D.A.S.; Silveira, Adriana; Araujo, Thiago Medeiros; Pegoretti, Alessandro

doi:10.1016/j.polymertesting.2014.06.005

Cited by 46 publications

(26 citation statements)

References 38 publications

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“…Though its sensing applications in suitable (cyclic) tests were not yet investigated, the above approach is very appealing for the future. Also natural fibers can be easily coated by PANI and used in sensing applications [135].…”

Section: Sensing/damage Detectionmentioning

confidence: 99%

Recent advances in fiber/matrix interphase engineering for polymer composites

Karger‐Kocsis

Mahmood

Pegoretti

2015

Progress in Materials Science

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486

251

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This review summarizes the recent (from year 2000) advancements in the interphase tailoring of fiber-reinforced polymer composites. The scientific and technological achievements are classified on the basis of the selected strategies distinguishing between i) interphase tailoring via sizing/coating on fibers, ii) creation of hierarchical fibers by nanostructures, iii) fiber surface modifications by polymer deposition and iv) potential effects of matrix modifications on the interphase formation. Special attention was paid to report on efforts dedicated to the creation on (multi)functional interphase in polymer composites. This review is round up by listing current trends in the characterization and modelling of the interphase. In the final outlook, future opportunities and challenges in the engineering of fiber/matrix interphase are summarized.

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Section: Sensing/damage Detectionmentioning

confidence: 99%

Recent advances in fiber/matrix interphase engineering for polymer composites

Karger‐Kocsis

Mahmood

Pegoretti

2015

Progress in Materials Science

Self Cite

486

251

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“…7 PPF were coated with PPy through in situ oxidative polymerization according to the Merlini, et al [8]. Firstly, 5 g of PPF with a length of 10 mm were immersed in a Becker containing 0.23 L of water.…”

Section: Methodsmentioning

confidence: 99%

Electrically conductive composites of polyurethane derived from castor oil with polypyrrole‐coated peach palm fibers

et al. 2015

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Electrically conducting fibers were prepared through in situ oxidative polymerization of pyrrole (Py) in the presence of peach palm fibers (PPF) using iron (III) chloride hexahydrate (FeCl 3. 6H 2 O) as oxidant. The polypyrrole (PPy) coated PPF displayed a PPy layer on the fibers surface, which was responsible for an electrical conductivity of (2.2 6 0.3) 3 10 21 S cm 21 , similar to the neat PPy. Electrically conductive composites were prepared by dispersing various amounts of PPy-coated PPF in a polyurethane matrix derived from castor oil. The polyurethane/PPy-coated PPF composites (PU/ PPF-PPy) exhibited an electrical conductivity higher than PU/PPy blends with similar filler content. This behavior is attributed to the higher aspect ratio of PPF-PPy when compared with PPy particles, inducing a denser conductive network formation in the PU matrix. Electromagnetic interference shielding effectiveness (EMI SE) value in the X-band (8.2-12.4 GHz) found for PU/PPF-PPy composites containing 25 wt% of PPF-PPy were in the range 212 dB, which corresponds to 93.2% of attenuation, indicating that these composites are promising candidates for EMI shielding applications. POLYM. COMPOS., 00:000-000, 2015.

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“…This phenomenon resulted in improved efficiency of the electrons to flow in the films thus increased the conductivity. Merlini et al also explained that PAni introduction in PAni-coated coconut fibers lead to increased electrical conductivity due to higher conducting pathway formed in the composites [14]. The incorporation of naphthalene, on the other hand, enhanced the electrical conductivity of PEO/PVC/PAni/Naphthalene films.…”

Section: Fourier Transform Infrared (Ftir) Spectroscopymentioning

confidence: 98%

Utilization of Polyaniline (PAni) as Conductive Filler on Poly (Ethylene Oxide) / Poly (Vinyl Chloride) Films: Effects of Naphthalene as Surface Modifier on Electrical Conductivity

Yazid

Ghani

Jin

et al. 2017

J. Phys.: Conf. Ser.

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Abstract:The aim of the study was to utilize polyaniline (PAni) as conductive filler in poly (ethylene oxide) / poly (vinyl chloride) (PEO/PVC) films. Naphthalene was used as surface modifier to increase the properties of PEO/PVC/PAni films. The electrical conductivity of PEO/PVC/PAni film improved with higher loading of PAni until it reached the percolation threshold at 10 wt%. Moreover, the conductivity of the films also improved with the addition of naphthalene compared to the films without naphthalene. These enhancements were due to the improved interfacial bonding between PEO/PVC blend and PAni, which were supported by scanning electron microscopy (SEM) analysis. In addition, no new chemical bonding was created with the incorporation of naphthalene as proved by the FTIR analysis.

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Polyaniline-coated coconut fibers: Structure, properties and their use as conductive additives in matrix of polyurethane derived from castor oil

Cited by 46 publications

References 38 publications

Recent advances in fiber/matrix interphase engineering for polymer composites

Recent advances in fiber/matrix interphase engineering for polymer composites

Electrically conductive composites of polyurethane derived from castor oil with polypyrrole‐coated peach palm fibers

Utilization of Polyaniline (PAni) as Conductive Filler on Poly (Ethylene Oxide) / Poly (Vinyl Chloride) Films: Effects of Naphthalene as Surface Modifier on Electrical Conductivity

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