Preparation process of colloidal silica coating and compound shell making technology are introduced. In addition, the application results has been analyzed briefly.

介绍硅溶胶涂料的配制过程及复合制壳工艺，对使用结果作了简要分析。

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The experimental results show that the coating has higher strength contained PVA organic binder than con - tained colloidal silica inorganic binder at room temperature.

结果表明，采用pva有机粘结剂的涂料常温强度高于硅溶胶无机粘结剂涂料的常温强度。

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