ENVIRONMENTAL RESISTANCE AND MECHANICAL PERFORMANCE OF BASALT AND GLASS FIBERS

作者：Bin Wei, Hailin Cao, Song Shen-hua · 发表于：Materials Science and Engineering A · 年份：2010 · 被引用次数：105 · 研究领域：Structural Behavior of Reinforced Concrete、Polymer Nanocomposites and Properties、Structural Analysis of Composite Materials

The treated basalt and glass fibers with sodium hydroxide and hydrochloric acid solutions for different times were analyzed, respectively. This paper summarized the mass loss ratio and the strength maintenance ratios of the fibers after treatment. The fibers' surface corrosion morphologies were characterized using scanning electron microscopy and their compositions were detected using energy dispersive X-ray spectroscopy. The acid resistance was much better than the alkali resistance for the basalt fibers. Nevertheless, for the glass fibers the situation is different: the acid resistance was almost the same as the alkali resistance. Among the two types of aqueous environments evaluated, the alkali solution is the most aggressive to the fibers' surface. The possible corrosion mechanisms are revealed.