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Release of urea from cellulosic hydrogel coated urea granule: Modeling effect of crosslink density and pH triggering

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Title Release of urea from cellulosic hydrogel coated urea granule: Modeling effect of crosslink density and pH triggering
Not Available
 
Creator Sarkar, D. J.,
T. Bera,
A. Singh
 
Subject Urea,
hydrogel coating,
carboxymethyl cellulose,
triggered release formulations
 
Description Not Available
Urea granules were coated with CMC-g-cl-PAA hydrogel by in situ spraying and polymerization technique with mean thickness of 0.24 mm. Water absorption capacity of hydrogel coated urea granules varied from 18.67 to 217.33 g/g depending on pH. Urea release was extended due to hydrogel coating and kinetic analysis at different pH (4.0, 7.0 and 9.2) revealed a sigmoid function as best fit model. The coated urea granules showed pH triggered release property with higher rate in alkaline medium and slower in acidic medium. The prepared hydrogel coated urea granules may find its application in integrated water and nutrient management strategies in agriculture.
Not Available
 
Date 2019-12-04T02:27:04Z
2019-12-04T02:27:04Z
2019-01-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/26769
 
Language English
 
Relation Not Available;
 
Publisher Not Available