U.S.-Mexico Cooperative Research: The Development and Study of Strengthening Agents for Limestone Using Sol-Gel and Coupling Agent Technologies

9526499惠勒这个美洲项目奖项将支持纽约大都会艺术博物馆谢尔曼费尔柴尔德中心的George Segan Wheeler博士和Elizabeth Stevenson Goins博士、新墨西哥大学阿尔伯克基分校的J.C.Brinker博士和墨西哥大都会-伊斯塔巴拉帕自治大学的Juan Mendez Vivar博士之间的合作研究。该项目的主要科学目标是开发和研究用于增强石灰岩的溶胶-凝胶材料和偶联剂。由于凝胶和组成石灰石的方解石颗粒之间缺乏粘附性，过去的溶胶凝胶型增强剂(称为固结剂)在石灰石上的性能一直很差。本项目将研究有机烷氧基硅烷作为方解石和无机凝胶之间的粘附剂的能力。通过延长以石灰岩为代表的墨西哥和美国建筑和雕塑遗产的很大一部分的寿命，这些固化剂的开发可以带来重要的长期好处。由于石灰岩极易受到酸雨和其他退化过程的影响，这一遗产面临严重风险。***

9526499 Wheeler This Americas Program award will support collaborative research between Drs. George Segan Wheeler and Elizabeth Stevenson Goins of the Sherman Fairchild Center, Metropolitan Museum of Art, New York, Dr. J. C. Brinker, University of New Mexico, Albuquerque, and Dr. Juan Mendez Vivar, Universidad Autonoma Metropolitana- Iztapalapa, Mexico. The primary scientific objective of the project is the development and study of sol-gel materials and coupling agents for strengthening limestone. The past performance of sol-gel-derived strengthening agents, (referred to as consolidants), on limestone has been poor because of the lack of adhesion between the gels and the grains of calcite comprising the limestone. This project will examine the ability of organoalkoxysilanes to serve as adhesion promoters between calcite and inorganic gels. An important, long-term benefit can accrue from the development of these consolidants by extending the life of a significant portion of Mexican and United States architectural and sculptural heritage represented in limestone. This heritage is at serious risk due to the high susceptibility of limestone to degradation by acid rain as well as other deterioration processes. ***