Evaluation of Silica Sol-Gel Microcapsule for the Controlled Release of Insect Repellent, N,N-Diethyl-2-methoxybenzamide, on Cotton

Evaluation of Silica Sol-Gel Microcapsule for the Controlled Release of Insect Repellent, N,N-Diethyl-2-methoxybenzamide, on Cotton

N,N-diethyl-2-methoxybenzamide, an insect repellent compound, was incorporated into cotton textile using the sol-gel method. Evaluation of the results of four different sol-gel formulations showed that a lower condensation rate resulted in significantly better encapsulation. Also investigated was th...

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Bibliographic Details
Main Authors: Chan, Ann Shireen, del Valle, Judy, Lao, Kendricks, Malapit, Christian, Chua, Modesto Tan, So, Regina C
Format: text
Published: Archīum Ateneo 2009
Subjects:
functionalized textile
N
N-diethyl-2-methoxybenzamide
sol-gel
Chemistry
Online Access:https://archium.ateneo.edu/chemistry-faculty-pubs/143
https://archium.ateneo.edu/cgi/viewcontent.cgi?article=1142&context=chemistry-faculty-pubs
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Institution: Ateneo De Manila University
Description
Summary:N,N-diethyl-2-methoxybenzamide, an insect repellent compound, was incorporated into cotton textile using the sol-gel method. Evaluation of the results of four different sol-gel formulations showed that a lower condensation rate resulted in significantly better encapsulation. Also investigated was the encapsulation in the presence of other polymers like polymethylmethacrylate (PMMA), polystyrene (PS) and polyvinyl alcohol (PVA) that prolong the release of the repellent. The sol-gel formulation, SiO2 : polymethylmethacrylate (PMMA) (1:0.8), gave smooth fabric and good encapsulation of the insect repellent compound. PS and PVA resulted in cloths which are aesthetically undesirable. Cloths coated with sol-gel PVA gave the best repellent release profile.

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