空心玻璃微球是制备复合泡沫材料的关键原料,对其进行表面改性有利于改善复合材料的性能.但目前的研究甚少关注处理过程对微球性能的影响,不利于复合材料的进一步优化设计.因此,本文拟在制备空心玻璃微球的基础上,通过改变处理液组成、处理时间等条件,测试微球粒子密度、抗压强度等变化情况,研究改性过程对其性能的影响.实验结果表明,改性过程中水会侵蚀玻璃壳体,导致其粒子密度随处理时间的延长、酸度的增大而降低,抗压强度也随之下降.采用适当浓度的Al2(SO4)3水溶液处理微球可以在其表面形成新的膜层,改善抗压强度.
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