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A STUDY ON DROPLET IMPACT BEHAVIOUR OF MODIFIED BIOPOLYMER ON UREA SURFACE

SAMSUDIN, YON NORASYIKIN (2015) A STUDY ON DROPLET IMPACT BEHAVIOUR OF MODIFIED BIOPOLYMER ON UREA SURFACE. Masters thesis, Universiti Teknologi PETRONAS.

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Abstract

Controlled release fertiliser gained lots of interests because the coated layer on urea granule would control the nutrient release to reduce the nitrogen loss into the soil and optimise the nutrient uptake by plants. Biopolymer coating material is favourable as the coated material because it may degrade and harmless to the environment. The polymer matrix of tapioca starch-urea-borate (SUB) has potential as a controlled release formulation. Three types of fillers which are lignin (SUB-Li), nanoclay -b^ntojm^^SrMMTLand^nanoclay halloysite (S-HNT) were added to improve the wettability and mechanical properties of the coating material by reinforced into SUB matrix. In urea coating process, the wetting stage plays an important phase where coating material spreads on urea surface to form a thin film layer which determines the coating uniformity of coated urea. The droplet impact behaviour studies the wettability properties of the liquid on urea surface.

Item Type: Thesis (Masters)
Academic Subject : Academic Department - Chemical Engineering - Reactor Technology
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Ahmad Suhairi Mohamed Lazim
Date Deposited: 18 Sep 2021 21:13
Last Modified: 18 Sep 2021 21:13
URI: http://utpedia.utp.edu.my/id/eprint/21423

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