中文摘要：

以羟乙基纤维素04EC）％乳化剂、明胶和阿拉伯胶为壁材、4，5-二氯-2-正辛基-4-异噻唑啉-3-酮（DCOIT）芯材、甲醛为固化剂、冰醋酸（HAc）和氢氧化钠（NaOH）pH值调节剂，采用复合凝聚法制备了DCOIT微胶囊。通过单因素试验法探讨了壁材浓度、壁芯比、反应时间、pH值、搅拌速率和乳化剂类型等对微胶囊的粒径、稳定性和包埋率等影响。结果表明：当w（壁材）=3％、壁芯比=m（壳层单体）概（核层单体）=3、反应时间为2h、pHi〈4．5和搅拌速率为1000r／min时，相应DCOIT微胶囊的性能相对最佳。

英文摘要：

With hydroxyethyl cellulose （HEC） as emulsifier, gelatin and gum arabic as shell-material, 4,5- dichloro-2-octyl-4-isothiazoline-3-ketone （DCOIT） as core-material, formaldehyde as curing agent, acetic acid（HAc） and NaOH as regulators of pH value,a DCOIT microcapsule was prepared by composite coacervation. The influences of shell concentration, shell/core rate,reaction time,pH value,mix round speed and emulsifier type on particle size,stability, and embedding rate of microcapsule were discussed by single-factor experiment method. The results showed that the corresponding DCOIT microcapsule had the reversely best properties when mass fraction of shell-material was 3% ,the shell/core ratio or mass ratio of m （shell monomers）/m （core monomers） was 3,reaction time was 2 h,pH was not more than 4.5,and mix round speed was 1 000 r/min.