期刊名称:Pertanika Journal of Social Sciences & Humanities
印刷版ISSN:0128-7702
电子版ISSN:2231-8534
出版年度:1989
卷号:12
期号:3
出版社:Universiti Putra Malaysia
摘要: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.
关键词:Microencapsulation;urea formaldehyde resin; control release and exterior latex paint.