Slow release of urea encapsulated by starch PVA matrix
The hydrophobicity of starch/PVA blend was improved by crosslinking with boric acid.It was found that the swelling ratio of the boric acid modified starch/PVA matrix decreased as function of boric acid concentration. FTIR spectra and SEM images demonstrated that the urea had been encapsulated in pol...
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2016
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my.utem.eprints.215842023-07-25T16:40:35Z http://eprints.utem.edu.my/id/eprint/21584/ Slow release of urea encapsulated by starch PVA matrix Lum, Yip Hing Shaaban, Azizah Mohamad, Noraiham Dimin @ Mohd Amin, Mohd Fairuz T Technology (General) TP Chemical technology The hydrophobicity of starch/PVA blend was improved by crosslinking with boric acid.It was found that the swelling ratio of the boric acid modified starch/PVA matrix decreased as function of boric acid concentration. FTIR spectra and SEM images demonstrated that the urea had been encapsulated in polymer matrix successfully.The urea release characteristic was explained with respect to the swelling ratio and crosslinking density of polymer matrix.In addition,the matrix displayed a good barrier for controlling the release rate of urea from pellet. Trans Tech Publications Ltd 2016-05 Article PeerReviewed text en http://eprints.utem.edu.my/id/eprint/21584/2/Slow%20Release%20of%20Urea%20Encapsulated%20by%20Starch%20PVA%20Matrix3.pdf Lum, Yip Hing and Shaaban, Azizah and Mohamad, Noraiham and Dimin @ Mohd Amin, Mohd Fairuz (2016) Slow release of urea encapsulated by starch PVA matrix. Key Engineering Materials, 707. pp. 28-31. ISSN 1662-9795 https://www.scientific.net/KEM.707.28 10.4028/www.scientific.net/KEM.707.28 |
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T Technology (General) TP Chemical technology Lum, Yip Hing Shaaban, Azizah Mohamad, Noraiham Dimin @ Mohd Amin, Mohd Fairuz Slow release of urea encapsulated by starch PVA matrix |
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The hydrophobicity of starch/PVA blend was improved by crosslinking with boric acid.It was found that the swelling ratio of the boric acid modified starch/PVA matrix decreased as function of boric acid concentration. FTIR spectra and SEM images demonstrated that the urea had been encapsulated in polymer matrix successfully.The urea release characteristic was explained with respect to the swelling ratio and crosslinking density of polymer matrix.In addition,the matrix displayed a good barrier for controlling the release rate of urea from pellet. |
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Article |
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Lum, Yip Hing Shaaban, Azizah Mohamad, Noraiham Dimin @ Mohd Amin, Mohd Fairuz |
author_facet |
Lum, Yip Hing Shaaban, Azizah Mohamad, Noraiham Dimin @ Mohd Amin, Mohd Fairuz |
author_sort |
Lum, Yip Hing |
title |
Slow release of urea encapsulated by starch PVA matrix |
title_short |
Slow release of urea encapsulated by starch PVA matrix |
title_full |
Slow release of urea encapsulated by starch PVA matrix |
title_fullStr |
Slow release of urea encapsulated by starch PVA matrix |
title_full_unstemmed |
Slow release of urea encapsulated by starch PVA matrix |
title_sort |
slow release of urea encapsulated by starch pva matrix |
publisher |
Trans Tech Publications Ltd |
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2016 |
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http://eprints.utem.edu.my/id/eprint/21584/2/Slow%20Release%20of%20Urea%20Encapsulated%20by%20Starch%20PVA%20Matrix3.pdf http://eprints.utem.edu.my/id/eprint/21584/ https://www.scientific.net/KEM.707.28 |
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1772816009723379712 |
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13.18916 |