X-射线荧光光谱法测试岩棉的酸度系数

关键字：射线,荧光,光谱法,测试,岩棉,酸度,系数

[1.北京建筑材料科学研究总院有限公司，北京  100024；2.中国地质大学（北京），北京  100041]

    摘要：针对建筑外保温用岩棉产品的酸度系数测试方法复杂、测试周期长的问题，建立了使用X-射线荧光光谱（XRF）测试岩棉酸度系数的方法。通过扫描电子显微镜（SEM）和X-射线衍射仪（XRD）对岩棉产品进行微观分析，探讨了使用玻璃熔片法代替粉末压片法制备样品的必要性。对化学分析方法和X-射线荧光分析方法进行对比，结果表明，X-射线荧光分析法操作简单、快速，准确度和精密度均符合国家标准规定要求。   
    关键词：岩棉；酸度系数；X-射线荧光；玻璃熔片法；测试
    中图分类号：TU55+1.31        文献标识码：A        文章编号：1001-702X（2018）01-0029-04
 

Acidity coefficient of rock wool tested by X-rays fluorescent spectrometry
LI Wei1，DING Hao2，YUAN Xiufang1，HAN Junping1，CHEN Xuhui1，LV Xin1
[1.Beijing Building Materials Science Research Institute Co. Ltd.，Beijing 100024，China；
2.China University of Geosciences（Beijing），Beijing 100041，China]

    Abstract：Aming at the problem of complex test method and long test period on testing acidity coefficient of rock wool products applied in architecture external thermal insulation，X-rays fluorescent（XRF） spectrometry was established to test the acidity coefficient. Through microanalysis on rock wool products by scanning electron microscope（SEM） and X-rays diffractometer（XRD），the necessity of using glass fuse piece method instead of pressed pellet to prepare specimen. Compared chemical analytical method with X-rays fluorescent spectrometry，the result showed that XRF has advantages of simplicity of operator and speediness，and the accuracy and precision meet the requirements of national standards.
    Key words：rock wool，acidity coefficient，X-rays fluorescent，glass fuse piece method，test