以Al₂O₃-PS复合材料为原料,采用乳液微封装法制备出掺杂Al₂O₃的PS空心微球.三相溶液分别是两个水相:蒸馏水(W1相)、5wt%PVA水溶液(W₂相)和3wt%Al₂O₃-PS溶液(O相,苯和三氯甲烷混合物作溶剂).所得微球表面粗糙度低于50nm.

Polystyrene composite shells doped with aluminum oxide used for inertial confinement fusion CICF) experiments were fabricated with emulsion techniques. Three different phases of solution (W₁, O, W₂) were adopted for the fabrication process. The W₁ phase (water) was mixed with a 3wt% Al₂O₃-PS solution in benzene-dichloromethane (O phase) while stirring. The mixed emulsion (W₁/O) was then poured into a 5wt% aqueous PVA solution (W₂ phase). Benzene and dichloromethane were evaporated from the resultant emulsion (W₁/O/W₂), and thus solid Al₂O₃-PS composite shells were formed. Parameters of the typical hollow pellets fit in with the requirement of ICF experiments.