e-ISSN 2231-8542
ISSN 1511-3701

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Performance of Microencapsulated Fungicide in Exterior Latex Paint on Wood Substrate

Wan Asma Ibrahim, Ahmad Shakri Mat Seman, Nurulhuda Mohd. Nasir and Rahim Sudin

Pertanika Journal of Tropical Agricultural Science, Volume 12, Issue 3, December 1989

Keywords: Microencapsulation,urea formaldehyde resin, control release and exterior latex paint.

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3-iodo-2^?ropynyl butyl carbamate (IPBC) was encapsulated by in situ polymerization of urea formaldehyde resin of crosslink (formaldehyde : urea) ratios 1 and 2. The kaching rate of the microcapsuks was reduced compared to the free fungicide. Microcapsuks prepared at the higher urea formaldehyde crosslink ratio gave a lower kaching rate. Two concentrations based on the weight of the active ingredient per volume of paint (a.i./v) of 0.3 % and 1 % of microcapsuks or free IPBC were incorporated into exterior latex paint and applied onto rubberwood panels. The panels were then exposed to the environment A longer protection from discoloration was provided by the encapsulated IPBC of 1% concentration.

ISSN 1511-3701

e-ISSN 2231-8542

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