Mosquera Maria J, de los Santos Desireé M, Montes Antonio, Valdez-Castro Lucila
Departamento de Química-Física, Facultad de Ciencias, Campus Universitario Río San Pedro, Universidad de Cádiz, Spain.
Langmuir. 2008 Mar 18;24(6):2772-8. doi: 10.1021/la703652y. Epub 2008 Feb 1.
A novel sol-gel synthesis, in which a surfactant acts to make the pore size of the gel network more coarse and uniform, is shown to provide an effective alternative for the consolidation of stone. The new mesoporous silica avoids the main inconvenience of current commercial consolidants, which is their tendency to crack inside the pores of the stone. Since the cracking of xerogels is a well-known drawback of the sol-gel process, the synthesis presented here can be extended to other applications. Finally, preliminary studies of the effectiveness of the novel surfactant-templated sol in consolidating a typical biocalcareous stone are also discussed.
一种新型的溶胶-凝胶合成方法被证明是一种有效的石材加固替代方法，在这种方法中，一种表面活性剂可使凝胶网络的孔径更大且更均匀。这种新型介孔二氧化硅避免了当前商业加固剂的主要不便之处，即它们易于在石材孔隙内产生裂缝。由于干凝胶开裂是溶胶-凝胶过程中一个众所周知的缺点，这里介绍的合成方法可扩展到其他应用。最后，还讨论了新型表面活性剂模板溶胶在加固典型生物钙质石材有效性方面的初步研究。
