This paper presents the study on the shrinkage of low-density silicon hydrogel microspheres and its influence on the density of resultant aerogels, focusing on the effects of solvent on the shrinkage.
介绍了溶胶-凝胶技术制备二氧化硅气凝胶微球过程中凝胶微球的收缩及其对目标气凝胶微球密度的影响，着重研究了外相溶剂处理与否以及处理方式与凝胶收缩程度的关系。
To evaluate the advantages of materials, we studied the polyacrylamide hydrogel and the silicon gel implant by animal experiment and clinic analysis.
为了客观地反应和评价该材料的优劣，我们通过动物实验和临床病例分析，对聚丙烯酰胺水凝胶和硅凝胶假体进行了比较研究。
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