目的 制备一种包埋氧化亚铜的微胶囊防污剂，延长防污期效，减少环境污染。方法 在葡萄糖还原法制备氧化亚铜（Cu2O）的基础上，利用单凝聚法将聚乙二醇（PEG）包覆在Cu2O防污剂的表面，制得PEG-Cu2O微胶囊。利用扫描电镜（SEM）、透射电镜（TEM）以及红外光谱（FT-IR）对微胶囊进行形貌结构表征和成分验证。利用粒径分析仪（PSA）和热重分析仪（TGA）测定PEG-Cu2O微胶囊的粒径分布和包埋率大小。通过基于分光光度法的铜离子渗出率测定实验，对PEG-Cu2O微胶囊的释放性能进行探究。通过单因素优化分析实验和SEM形貌测试讨论PEG和凝聚剂的加入方式、反应温度、搅拌速度对微胶囊的影响。结果 成功制备了PEG-Cu2O微胶囊，微胶囊颗粒大小均匀，平均粒径为1.66 μm，囊壁平均厚度约200 nm，包埋率为78.1%。与普通Cu2O防污剂相比，微胶囊的缓释效果明显。采用PEG与氯化铜预混合、凝聚剂溶液逐滴加入的方法，在反应温度为70 ℃以及搅拌速度为200~300 r/min的条件下，能够得到比较理想的微胶囊产品。结论 PEG-Cu2O微胶囊能够有效控制防污剂释放速度，进而减少环境污染，延长防污期效。该方法工艺简单，符合原子经济学和绿色化学理念，在海洋防污领域具有一定的应用价值。

The work aims to prepare the microcapsule antifouling agent embedding cuprous oxide to prolong the antifouling period and reduce environmental pollution. The PEG-Cu2O microcapsule was prepared by single coacervation to coat the cuprous oxide with polyethylene glycol based on the synthesis of cuprous oxide by reduction of glucose. Characterization and composition of microcapsules were investigated with SEM, TEM and FT-IR. Particle size distribution and embedding rate of the PEG-Cu2O microcapsules were determined by PSA and TGA. The release property of microcapsules was explored based on the determination experiment of copper-ion release rate. The effects of PEG addition method, coagulant addition method, reaction temperature and agitation speed on microcapsules were discussed by single factor optimization analysis experiment and SEM topography test. PEG-Cu2O microcapsules with uniform participle size was prepared successfully. The average particle size was 1.66 μm, the average thickness of the capsule wall was 200 nm and the embedding rate was 78.1%. Compared with Cu2O antifoulant, the release properties of microcapsules were more obvious. More ideal microcapsules could be obtained when the experimental method of premixing PEG with copper chloride was adopted, coagulant solution was added drop by drop, reaction temperature was 70 ℃, mixing speed was 200~300 r/min. The microcapsules can effectively control the releasing speed of antifoulant, reduce the pollution and prolong the antifouling period. The simple method is easy and accorded with the concepts of atomic economics and green chemistry and has certain application values in the field of marine antifouling.