材料工程2017，Vol.45Issue(6)：61-66,6.DOI:10.11868/j.issn.1001-4381.2015.001191
高温处理对几种玄武岩纤维成分和拉伸性能的影响
Effects of Elevated Temperature Treatment on Compositions and Tensile Properties of Several Kinds of Basalt Fibers
摘要
Abstract
Five kinds of domestic basalt fibers were studied for the changes of chemical compositions, physical properties and tensile properties of these fibers before and after 200-800℃ treatment in air atmosphere and in nitrogen atmosphere.These works were done mainly by means of X-ray fluorescence spectrometry and fiber monofilament tensile testing methods in order to understand the elevated temperature resistance of basalt fiber.The experimental results show that the surface of basalt fibers becomes smoother with slightly smaller in diameter and mass reduction at the same time, due to the removal of fiber surface treatment agent after elevated temperature treatment in air atmosphere.Mass fractions of SiO2 and Al2O3 decrease while mass fractions of FeO+Fe2O3, CaO and MgO increase, among which the mass fraction of FeO+Fe2O3 increase the most with the maximum increase of 21%.The monofilament tensile strength of basalt fiber is reduced after 200℃ treatment and the maximum strength retention percentage is 98.3%.The monofilament tensile strength reduces evidently after 400℃ treatment and the maximum strength retention percentage is 64.6%.Moreover, the strength retention percentages of five kinds of basalt fibers are all less than 20% after 800℃ treatment.In addition, the fiber elongation at break decreases with the increase of treating temperature and the elastic modulus increases.Compared with that in air atmosphere, strength retention rate of basalt fiber is higher and tensile properties are more stable in nitrogen atmosphere.关键词
玄武岩纤维/玻璃纤维/高温处理/化学成分/单丝拉伸性能Key words
basalt fiber/glass fiber/high temperature treatment/chemical composition/monofilament tensile property分类
通用工业技术引用本文复制引用
陈菁,顾轶卓,杨中甲,李敏,王绍凯,张佐光..高温处理对几种玄武岩纤维成分和拉伸性能的影响[J].材料工程,2017,45(6):61-66,6.基金项目
国家高技术研究发展计划项目(2014AA032801) （2014AA032801）
