Performance of Microencapsulated Fungicide in Exterior Latex Paint on Wood Substrate
Ibrahim, Wan Asma and Mat Seman, Ahmad Shakri and Mohd Nasir, Nurul Huda and Sudin, Rahim (1989) Performance of Microencapsulated Fungicide in Exterior Latex Paint on Wood Substrate. Pertanika, 12 (3). pp. 409-412.
3-iodo-2-propynyl butyl carbamate (IPBC) was encapsulated by in situ polymerization of urea formaldehyde resin of crosslink (formaldehyde: urea) ratios 1 and 2. The leaching rate of the microcapsules was reduced compared to the free fungicide. Microcapsules prepared at the higher urea formaldehyde cross ink ratio gave a lower leaching rate. Two concentrations based on the weight of the active ingredient per volume of paint (a.i.lv) of 0.3 % and 1 % of microcapsules or free IPBC were incorporated into exterior latex paint and applied onto rubber wood panels. The panels were then exposed to the environment. A longer protection from discoloration was provided by the encapsulated IPBC of 1% concentration.
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