Effect of inert fillers on diffusion and controlled release of penetrant in polymer matrices

Rajendran, S., Gilbert, R.G., Cribb, B.W., Truss, R.W., Noller, B.N., Stewart, A. and Zalucki, M.P. (2008) Effect of inert fillers on diffusion and controlled release of penetrant in polymer matrices. Journal of Applied Polymer Science, 108 6: 3593-3600. doi:10.1002/app.28044


Author Rajendran, S.
Gilbert, R.G.
Cribb, B.W.
Truss, R.W.
Noller, B.N.
Stewart, A.
Zalucki, M.P.
Title Effect of inert fillers on diffusion and controlled release of penetrant in polymer matrices
Journal name Journal of Applied Polymer Science   Check publisher's open access policy
ISSN 0021-8995
Publication date 2008-06-15
Year available 2008
Sub-type Article (original research)
DOI 10.1002/app.28044
Open Access Status
Volume 108
Issue 6
Start page 3593
End page 3600
Total pages 8
Editor Hiltner, A.
Baer, E.
Place of publication New York, USA
Publisher John Wiley & Sons, Inc.
Language eng
Subject C1
291401 Polymers
670704 Plastics in primary forms
670707 Inorganic industrial chemicals
09 Engineering
0904 Chemical Engineering
Abstract This study investigates the characteristics of leaching into a solvent of an active used as termiticide, Bifenthrin® (a synthetic pyrethroid) entrapped in polymer, and the effect of layered silicates on this diffusion. Two contrasting solvents, water and acetone, were used to understand this phenomenon; the active is soluble in acetone but has very low solubility in water. The data are used to understand the migration characteristics of Bifenthrin when encapsulated in polyurethane to form a termite barrier. The absorption characteristics of Bifenthrin in polyethylene were also studied for comparison. Bifenthrin-polyurethaneblends containing 0, 0.5, and 5% of layered silicates were prepared and monitored for the release of Bifenthrin. Using the time-concentration dependence of the active in polymer, diffusion coefficients of Bifenthrin from the polymer were inferred assuming Fickian diffusion. The presence of silicates had no significant effect on the diffusion behavior. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
Keyword Additives
Barrier
Clay
Diffusion
Polyurethanes
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Tue, 31 Mar 2009, 03:01:15 EST by Sally Beard on behalf of Faculty Of Engineering, Architecture & Info Tech