4.6 Article

Electrical properties of banana fiber-reinforced phenol formaldehyde composites

Journal

JOURNAL OF APPLIED POLYMER SCIENCE
Volume 109, Issue 1, Pages 256-263

Publisher

WILEY
DOI: 10.1002/app.27452

Keywords

natural fiber composites; hybrid composites; electrical properties

Ask authors/readers for more resources

The electrical properties of banana fiber-reinforced phenol formaldehyde composites have been studied with special reference to fiber loading, fiber treatments, and hybridization with glass fibers. The dielectric constant decreased with frequency and fiber loading. Treatments with silanes, NaOH and acetylation, latex treatment, heat treatment, and cyanoethylation decreased the dielectric constant value. The dielectric constant is higher for banana/PF composites than that of glass/PF composites. In hybrid composites, the dielectric constant decreased with increase in glass fiber concentration. The volume resistivity of banana fiber-reinforced phenol formaldehyde composites decreased with frequency and fiber loading. Chemical modifications in the fiber increased the volume resistivity of the composites. Volume resistivity of banana/glass hybrid composites increased with increase in glass fiber content. Layered composites with glass fiber at periphery were found to have higher volume resistivity than other layering patterns. The loss factor decreased by the chemical treatments and in hybrid composites it decreased with increase in volume fraction of glass fibers. (C) 2008 Wiley Periodicals, Inc.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.6
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

Review Materials Science, Textiles

Review on Solvent Extraction Methods of Lignin from Oil Palm Empty Fruit Bunches (OPEFB)

Mohammad Shahrizad Pairon, Fathilah Ali, Farah Ahmad, Hazleen Anuar, Nurul Amirah Abdul Rahman, Mohamed Elwathig Saeed Mirghani, Joghwan Suhr, Sabu Thomas

Summary: This review provides information on solvent extraction methods for extracting lignin from oil palm empty fruit bunch. Different solvent extraction methods lead to lignin with different properties, and catalysts and enzymes have been used to overcome the limitations of these methods.

JOURNAL OF NATURAL FIBERS (2022)

Review Polymer Science

Time-of-flight secondary ion mass spectrometric analysis of polymer surfaces: A review

Ananthu Prasad, Nisa V. Salim, Miran Mozetic, Lekshmi Kailas, Sabu Thomas

Summary: Time of flight-secondary ion mass spectrometry (ToF-SIMS) is a surface sensitive technique that provides specific compound identification of surface molecules. It has become increasingly important for the characterization and utilization of polymers in recent years.

JOURNAL OF APPLIED POLYMER SCIENCE (2022)

Review Materials Science, Composites

Hybrid materials for electromagnetic shielding: A review

Suji Mary Zachariah, Yves Grohens, Nandakumar Kalarikkal, Sabu Thomas

Summary: This review provides a detailed analysis of recent trends in hybrid materials for electromagnetic shielding applications, including various polymers, cement, concrete, paints, and their different filler inclusions. The paper also discusses the origin and effects of electromagnetic radiation, the shielding mechanism, fabrication techniques, and characterization of the materials.

POLYMER COMPOSITES (2022)

Review Polymer Science

From waste to wealth: A critical review on advanced materials for EMI shielding

Suji Mary Zachariah, Tinu Antony, Yves Grohens, Sabu Thomas

Summary: This article discusses the use of industrial by-products and bio-wastes as raw materials to eliminate the adverse environmental impacts of solid waste and to synthesize shielding materials. It covers the sources, effects and mechanisms of electromagnetic radiation, as well as the factors affecting EMI shielding. This review opens up new opportunities for upcycling waste materials into efficient shielding materials.

JOURNAL OF APPLIED POLYMER SCIENCE (2022)

Review Chemistry, Applied

Recent advances in bio-inspired multifunctional coatings for corrosion protection

Jesiya Susan George, Poornima P. Vijayan, Anh Tuan Hoang, Nandakumar Kalarikkal, Phuong Nguyen-Tri, Sabu Thomas

Summary: Research and developments in novel smart coating systems, inspired by biomimetic materials such as lotus leaf, pitcher plant, and mussels, have shown promising results in providing better corrosion protection and longer service life for metal substrates. Introducing multifunctionalities through bioinspired coatings is an exciting route for enhancing anticorrosion efficiency.

PROGRESS IN ORGANIC COATINGS (2022)

Article Materials Science, Textiles

Electromagnetic Attenuation Performance of Sustainable e-Textile Derived from Polypyrrole Impregnated Jute Fabrics with Predominant Microwave Absorption

Gopika G. Nair, Avinash R. Pai, Nandakumar Kalarikkal, Sabu Thomas, Preema C. Thomas

Summary: This study introduces a novel e-textile derived from sustainable jute fabrics, which are capable of efficiently suppressing and absorbing electromagnetic radiation. By polymerizing pyrrole monomer in jute fabrics, the resulting conductive fabrics exhibit excellent electrical conductivity and high shielding effectiveness. The e-textile has significant implications for commercial applications.

JOURNAL OF NATURAL FIBERS (2022)

Article Chemistry, Physical

Lithium-ion battery separators based on electrospun PVDF: A review

K. Bicy, Amadou Belal Gueye, Didier Rouxel, Nandakumar Kalarikkal, Sabu Thomas

Summary: Separator is a crucial component in lithium-ion batteries (LIBs) as it significantly affects the electrochemical performance of the battery. However, the poor electrochemical performance of commercial LIB separators limits their use in electric vehicles and energy storage systems. This issue can be addressed by using different types of polymer separators and fabrication technologies. Electrospinning technology has gained attention for its ability to design new separator materials with high porosity, surface area, electrolyte uptake, and ionic conductivity. Among various polymeric separators, polyvinylidene fluoride (PVDF) and its copolymers are extensively used due to their desirable properties. This review discusses the impact of different PVDF-based electrospun separators on battery performance and highlights recent developments in improving electrochemical performance.

SURFACES AND INTERFACES (2022)

Article Materials Science, Multidisciplinary

Poly(lactic acid)/Polyethylenimine Functionalized Mesoporous Silica Biocomposite Films for Food Packaging

Jissy Jacob, Vijay Robert, Ravi Babu Valapa, Sunny Kuriakose, Sabu Thomas, Sravanthi Loganathan

Summary: The search for sustainable plastics is driven by the environmental pollution issues associated with petrochemical-derived plastics. Bioplastics, such as poly(lactic acid) (PLA), are increasingly being used in packaging due to limited fuel resources. However, poor ductility and gas barrier characteristics limit the use of PLA as food packaging material. This study aims to overcome these limitations by fabricating PLA/polyethylenimine-modified mesoporous silica (PEI-MS) composites. The influence of PEI content in MS and wt % loadings of optimized PEI content in MS on the properties of PLA is investigated in detail. The results show that PEI-MS modification improves the thermal stability and mechanical properties of PLA.

ACS APPLIED POLYMER MATERIALS (2022)

Article Polymer Science

Carbon black distribution driven by its concentration and its effect on physico-mechanical properties of styrene butadiene rubber and butadiene rubber miscible rubber blends

Abitha Vayyaprontavida Kaliyathan, Ajay Vasudeo Rane, Sabu Thomas

Summary: This paper discusses the influence of increasing concentration of carbon black (CB) on the physical and mechanical properties of SBR/BR rubber blends. The partitioning of CB towards the BR phase is quantitatively determined and confirmed using dynamic mechanical analysis (DMA) and solid-state nuclear magnetic resonance spectroscopy (SS-NMR spectroscopy). The results show that increasing CB concentration increases its partitioning towards the BR phase, affecting the properties and dispersion characteristics of the material.

JOURNAL OF APPLIED POLYMER SCIENCE (2023)

Article Polymer Science

Effect of surface treatment on flax fiber reinforced natural rubber green composite

Lata Samant, Alka Goel, Jessen Mathew, Seiko Jose, Sabu Thomas

Summary: This study investigates the effect of different surface treatments of flax fiber on the mechanical properties of the natural fiber reinforced natural rubber composites. The results show that flax fibers with a length of 1.25 cm and a volume loading of 40% exhibit higher tensile strength. Furthermore, treating the flax fibers with NaOH and laccase enhances the mechanical properties of the composites.

JOURNAL OF APPLIED POLYMER SCIENCE (2023)

Article Polymer Science

Nanoscale partitioning of carbon black in styrene butadiene rubber and butadiene rubber miscible blends and its effect on physico-mechanical properties

Abitha Vayyaprontavida Kaliyathan, Ajay Vasudeo Rane, Sabu Thomas

Summary: This research aims to investigate the partitioning of carbon black in miscible styrene butadiene rubber/butadiene rubber blends. DMA and TEM were used to determine the partitioning and dispersion of carbon black in the blends. The study provides valuable insights for academics and industrial researchers in the field of rubber composites.

JOURNAL OF RUBBER RESEARCH (2023)

Article Materials Science, Textiles

Extraction and Characterization of Fibers from Water Hyacinth Stem Using a Custom-Made Decorticator

Sneha George, Sabu Thomas, Namitha Nandanan Nedumpillil, Seiko Jose

Summary: In this study, fibers were extracted from water hyacinth plant using a specially designed decorticating machine. The extracted fibers were subjected to aerobic and anaerobic retting, followed by alkali treatment. The physical and mechanical properties, as well as the chemical composition and structural characteristics of the fibers, were analyzed. The results showed that the fibers could be easily extracted after 5 days of retting. The alkali treatment significantly improved the tensile strength and crystallinity of the fibers.

JOURNAL OF NATURAL FIBERS (2023)

Article Polymer Science

Physical property characterizations of natural rubber nanocomposites through experimental techniques, models and CRR concept

Prajitha Velayudhan, Jibin Keloth Paduvilan, Bindu Patanair, Sisanth Krishnageham Sidharthan, Abitha Vayyaprontavida Kaliyathan, Nicolas Delpouve, Allisson Saiter-Fourcin, Sabu Thomas

Summary: In this research, the hybrid reinforcements of silica with either graphite or graphene oxide in natural rubber were studied. The addition of GO/SiO2 with a 3:1 ratio showed a synergistic reinforcement effect, significantly improving both strength and modulus while maintaining decent strain at break levels. The experimental data correlated well with the Guth Gold model, suggesting that filler/matrix interactions primarily govern the mechanical properties. The calometric response of the nanocomposites at the glass transition was analyzed, and the 3:1 GO/SiO2 composition showed the highest glass transition temperature and the most efficient filler intercalation.

JOURNAL OF APPLIED POLYMER SCIENCE (2023)

Review Materials Science, Multidisciplinary

Recent progress and prospects of random lasers using advanced materials

Nideesh Padiyakkuth, Sabu Thomas, Rodolphe Antoine, Nandakumar Kalarikkal

Summary: Random lasers are optical devices that utilize scattering media for optical feedback, resulting in low spatial coherence. They have applications in speckle-free imaging, sensing, and light therapy. The properties of gain and scattering materials are crucial for random lasers. Advanced materials and nanostructures have the potential to overcome the limitations of random lasers.

MATERIALS ADVANCES (2022)

Article Materials Science, Multidisciplinary

Poly(lactic acid)/Polyethylenimine Functionalized Mesoporous Silica Biocomposite Films for Food Packaging

Jissy Jacob, Vijay Robert, Ravi Babu Valapa, Sunny Kuriakose, Sabu Thomas, Sravanthi Loganathan

Summary: This study focuses on the fabrication of PLA/PEI-MS composites to improve the limitations of PLA as food packaging material. The addition of PEI-MS enhanced thermal stability and mechanical properties while reducing oxygen transmission rate for PLA composites.

ACS APPLIED POLYMER MATERIALS (2022)

No Data Available