نتایج جستجو برای: polyvinylalcohol
تعداد نتایج: 164 فیلتر نتایج به سال:
In this paper 
, the effect of curing time and temperature as well as various primers on durability of high density polyethylene on plain carbon steel have been investigated. The aim is to increase adhesion, improve durability and also to produce a defect-free in order to improve the corrosion resistance of steel substrate. For this purpose, after surface preparation and applying a primer (z...
The non-biodegradable polymer occupying the world leads to many issues concerning global warming and other related problems. Due these issues, there is a need for biodegradable polymers overcome issues. This paper focussed on processing polyvinylalcohol (PVA) crosslinked with glutaraldehyde(GA) studying harness of polymer. from 0 40 volume percent glutaraldehyde than post cured immersed in 2 mo...
Based on the results of in vitro and in vivo experiments, we have determined that the optimal material for the central transparent portion of a perforating keratoprosthesis is a polyvinylalcohol copolymer hydrogel. The material supports the maintenance and growth of corneal epithelium in vitro as shown by population doublings and transmission electron microscopy. Discs preseeded with epithelial...
Hydrogels may be the ideal vitreous substitutes due to their wonderful physical features and biocompatibility. However, their drawbacks, short residence time, and biodegradation in vivo, have led to the fact that none of them have been approved for clinical use. In this study, we developed a novel approach of using a foldable capsular vitreous body (FCVB) injected with polyvinylalcohol (PVA) hy...
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