Research
Impact of Ytterbium Ion on Substantial Effects of Biodegradable Equal Mixture of Polymer Blend of PVA and PVP
A biodegradable solid polymer blend films of PVA (50)/ PVP (50) filled with Yb(NO3)2 were prepared by solution casting technique. The degree of amorphosity of the polymer blend composites was increased by the incorporation of filler into the polymer blend matrix. The decrease in the optical energy gap values was observed with the addition of filler which is illustrated by UV-Vis studies, indicating the interaction of filler with polymer blend matrix. With the temperature increase, the value of dielectric constant was found to increase depicting the more polar nature of polymer matrix. The tangent loss spectra of the samples showed a broad peak which confirms the presence of relaxing dipoles in the polymer composites.
Impact of Chemical Treatments and Coupling Agents on the Properties of Jute Fiber Reinforced by Polybutylene Composite
Jute and polybutylene have different characters in their properties. When they are blended, their blended composition shows various purposes. The goal of the research is to enhance the properties of jute fiber (JF) reinforced polybutylene (PB) composite. It was made by sample ho press molding method according to the weight percentage of 25 wt% filler (JF), 2wt% coupling agent (compatibilizer) degraded PB (DgPB) and maleated PB (MAPB) and 70 wt% matrix (PB). To improve the interfacial interactions between the fiber and PB, the fiber was chemically modified with 10w/v% NaOH, 6w/v% dicumyl peroxide (DCPO), 0.05 w/v% K2Cr2O7 and 5 w/v% H2O2 solution. The water absorption, tensile and thermal properties of raw and surface treated fibers composites were compared in particular coupling agent. It has found that the fiber treatments and the addition of coupling agents, composites showed better properties. Among the composites, 10 wt/v% NaOH treated jute reinforced PB composite by using MAPB compatibilizer was presented better water absorption and mechanical properties.
