1Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, via Terracini 28, 40131, Bologna, Italy
2Department of Chemistry, Bahra University, Shimla Hills, Waknaghat 173 215, Dist. Solan (H.P.) India
3Department of Applied Chemistry, University of Johannesburg, Doorfontein 20280 Johannesburg, South Africa
4Department of Chemistry, Himachal Pradesh University, Summer Hill 171005 (H.P.) India
Adv. Mater. Lett., 2013, 4 (10), pp 742-748
DOI: 10.5185/amlett.2013.3441
Publication Date (Web): Oct 13, 2013
Copyright © IAAM-VBRI Press
E-mail: susheel.kalia@gmail.com, susheel_kalia@yahoo.com
Ramie fibers usually display poor interfacial adhesion when reinforced in hydrophobic polymer matrices. Hydrophilic nature of natural fibers becomes the most crucial issue in composites engineering. Surface modification of natural fibers has been found to be very effective in improving the fiber-matrix adhesion. In the present paper, we have reported the microwave assisted grafting of binary vinyl monomer mixtures on to ramie fibers (Boehmeria nivea) and bacterial cellulase assisted pre-treatment of ramie fibers using bacteria Brevibacillus parabrevis. The effects of these pretreatments on some properties of ramie fibers are discussed in the present paper. The modified fibers were characterized by scanning electron microscopy (SEM), X-ray diffraction, and TGA/DTA techniques to determine their morphology, crystallinity and thermal stability. Surface of ramie fiber becomes rough on grafting with synthetic polymers, whereas biologically modified ramie fibers showed the enhanced softness and smooth appearance due to the removal of gum materials and other impurities from the surface of fibers. Both the treatments have slightly changed the thermal stability and crystallinity of ramie fibers.
Ramie fibers, graft copolymers, cellulase, morphology, thermogravimetric analysis.
Advanced Healthcare Biomaterials
Piezoelectric Alternative Energy Sources as a Part of the Global Energy Concerns – Future Prospects in the Science and Market
Rectify the Injury-Induced Microenvironment Imbalance in Peripheral Nerve Repair
A Mini Review on Biodegradable Magnesium Alloy Vascular Stent
Prospective Applications of Marine Oriented Materials in the Repair of Peripheral Nerve Injury
Design and Implementation of Dynamic FPAA Based Interface Circuit for Thin Film Lead-Free Piezoelectric Sensors
An Аpproach for Nanostructuring of Piezoelectric Materials by Template-assisted Growth in Porous Aluminum Oxide
Study of Sputtered Barium Strontium Titanate Films for Energy Harvesting Applications
The Effect of Bias on Properties of DLC Coatings for Artificial Joints
Fabrication of Tens-micron-sized Functionalized Polystyrene Microspheres for Utilization in Chiral Drug Isolation
COVID-19: A Mechanistic Approach to Understand the Detrimental Consequences for Vaccine Development and Perspectives
Contribution of Nanotechnology in Animal and Human Health Care
Numerical and Analytical study on Axial Compression behaviour of Pultruded GFRP members
Optical Characterization of Double Perovskite Ba2FeNbO6 Powders Derived from Molten Salt Method
Solar Cell Characteristic Studies on Metal Organic Framework/TiO2 Hybrid Solar Cell
In-situ Prepared 2D Covalent Organic Framework as a Photocatalyst in the Photocatalytic-Biocatalytic Attached System for Highly Selective L-Glutamate Production under Solar Light
Molecular Dynamics and FEM Modeling of Composites Having High Thermal Conductivity
Easy-Synthesis of BDA/ABDA Functionalized Hydrophilic Superparamagnetic Iron Oxide Nanoparticles for Magnetic-Hyperthermia Application
Electrochemical and Photocatalytic Properties of Green Nickel Oxide Nanomaterial Synthesized using Plectranthus Amboinicus Plant Leaf Extract
Copyright ©2010-2020 VBRI Press
Full Article