为了得到综合性能较好的成都金沙土遗址加固材料,采用自由基溶液共聚合和溶胶-凝胶法制备了丙烯酸-有机硅-环氧树脂三元体系的新型有机/无机杂化土遗址保护材料,并将其应用于成都金沙遗址土样的加固,实验结果表明,当TEOS含量为20%时,无机相尺寸为20～70 nm,平均粒度为45 nm,且分散均匀,无机和有机相之间以化学键相连接.增大TEOS的含量可以提高加固材料的耐光老化性和加固土的综合性能(如耐溶剂性、抗水解性等),同时降低加固土的渗透速率,SEM表明加固材料有效地填补了土中的孔洞,降低了孔隙率,并起到了支撑和加固的作用.
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