Results 31 to 40 of about 90,394 (310)

Utilization of Poly(Polyvinyl Alcohol-g-2-Ethylhexyl Acrylate) as Admixture for Mortar

open access: yesInternational Journal of Technology, 2020
We investigated the physico-mechanical properties of mortar mixed with copolymers based on polyvinyl alcohol (PVA) and 2-ethylhexyl acrylate (2-EHA) and synthesized by grafting using ammonium persulfate (APS) as an initiator. Increasing the amount of
Lyazzat Bekbayeva   +3 more
doaj   +1 more source

Effects of PVA Polymer Type and Calcination Temperature on Synthesis of Nanocrystalline Yttria Powder by Polymer Solution Route [PDF]

open access: yesArchives of Metallurgy and Materials, 2018
Nano-sized yttria (Y2O3) powders were synthesized by a polymer solution route using polyvinyl alcohol (PVA) as an organic carrier. The PVA polymer affected the dispersion of yttrium ions in precursor sol.
Y.-K. Yang, S.-J. Lee
doaj   +1 more source

The Effect of Doped by Nano and Micro Zno Particles on Optical and Structural Properties of PVA Films

open access: yesEurasian Journal of Science and Engineering, 2020
This paper studied the effects of nano and micro ZnO particles dopant on optical properties and structure of (PVA) films that were prepared for both pure and ZnO doped PVA using solvent casting method.
Ilham K. Onees
doaj   +1 more source

Antibacterial wound dressing with hydrogel from chitosan and polyvinyl alcohol from the red cabbage extract loaded with silver nanoparticles

open access: yesGreen Processing and Synthesis, 2023
The aim of the present study was the synthesis of hydrogel incorporated with chitosan blend with polyvinyl alcohol (PVA) from red cabbage Brassica oleracea and its application in wound healing and antibacterial activity.
Kaliaperumal Kumaravel   +9 more
doaj   +1 more source

Improvement Optical Properties of PVA/ TiO2 and PVA/ ZnO Nanocomposites [PDF]

open access: yesAl-Mustansiriyah Journal of Science, 2019
The optical properties of polyvinyl alcohol (PVA) doped TiO2 and ZnO nanoparticles respectively, were studied. PVA/TiO2 and PVA/ZnO nanoparticles were prepared by the pulsed laser ablation technique (PLA).The optical properties of PVA/ TiO2 and PVA/ ZnO nanocomposite solution have been investigated by transmittance data and absorption spectra.
Nadheer J. Mohammed   +2 more
openaire   +6 more sources

Electrospun PVA–PANI and PVA–PANI– composite nanofibers

open access: yesScientia Iranica, 2011
AbstractDoped polyaniline (PANI) was obtained by the polymerization of aniline, using chemical oxidative polymerization in the presence of ammonium peroxydisulfate [(NH4)2S2O8]. The doped PANI was dedoped by ammonia solution. The electrospinning method was applied to solutions involving PANI–PVA, PANI–PVA–AgNO3, where PV A=poly(vinyl alcohol) and PANI ...
M. Shahi   +3 more
openaire   +2 more sources

Development of Thespesia populnea Doped PVA Electrospun Mat for Biocompatibility Studies

open access: yesJournal of Natural Fibers, 2022
Electrospun biocompatible fiber mats were made with Poly Vinyl Alcohol (PVA) using a biocompatible solvent Dimethylsulfoxide (DMSO), because of its compatibility.
Saravanan M
doaj   +1 more source

Poly(vinyl alcohol)-Based Anion Exchange Membranes for Alkaline Direct Ethanol Fuel Cells

open access: yesInternational Journal of Renewable Energy Development, 2021
Crosslinked anion exchange membranes (AEMs) made from poly(vinyl alcohol) (PVA) as a backbone polymer and different approaches to functional group introduction were prepared by means of solution casting with thermal and chemical crosslinking.
Asep Muhamad Samsudin   +3 more
doaj   +1 more source

Fabrication and Characterization for Phosphate Nanofertilizer through Polymer Coating Technique [PDF]

open access: yesEngineering and Technology Journal, 2020
Many organic and inorganic materials were used to enhance plant growth and soil fertility, in the present study phosphate and polyvinyl alcohol ( PVA) was used to prepare nanocapsules fertilizer by using Emulsification Solvent Diffusion Method (ESDM ...
Azhar Haleem
doaj   +1 more source

Vortex input files -- Florida scrub-jay PVA -- revised

open access: yes, 2021
Input files for Vortex PVA of Florida scrub-jay, a collaboration of NASA, USFWS, TNC, SCTI, and othersSlight revisions since first ...
Lacy, Robert C
core   +1 more source

Home - About - Disclaimer - Privacy