Physical, chemical, thermal, and mechanical assessments of Roselle-reinforced composites
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Ashish Chauhan
und
Balbir Singh
Abstract
Hibiscus sabdariffa stem fiber has 73.9% cellulose, high mechanical strength and is found in abundance throughout the world. Hibiscus sabdariffa graft copolymers were synthesized, characterized by FTIR, XRD, TGA, DTA, and SEM techniques, and evaluated for physicochemical changes in properties such as moisture absorption, chemical resistance against 1 n NaOH and 1 n HCl. These graft copolymers were reinforced in phenol-formaldehyde polymer matrix to form biocomposites that were characterized by advanced techniques and evaluated for physicochemicothermal resistance. The mechanical strength was accessed on the basis of hardness, flexural strength, Young modulus, and stress at the limit of proportionality, which was found to be high. These novel materials could have numerous scientific and industrial application to pave the way for development of technology.
©2012 by Walter de Gruyter Berlin Boston
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Artikel in diesem Heft
- Application of Vogel-Tamman-Fulcher (VTF) model to polythiophene composite thin films
- Mini Review
- Review of the application of ionic liquids as solvents for chitin
- Original Articles
- Preparation of rigid polyurethane foams with powder filler
- A quantitative approach to assess the mixing ability of single-screw extruders for polymer extrusion
- Application of variothermal heating concepts for the production of microstructured films using the extrusion embossing process
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- Synthesis of well-defined clay encapsulated poly(styrene-co-butyl acrylate) nanocomposite latexes via reverse atom transfer radical polymerization in miniemulsion
- Batch-foamed biodegradable polylactide acid/organic modified montmorillonite clays and polylactide/sericite powder nanocomposites
- Physical, chemical, thermal, and mechanical assessments of Roselle-reinforced composites
- Improvement of physicomechanical properties of grafted coir fiber with ethyleneglycol dimethacrylate: effect of UV radiation
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