摘要
以脱硫铅膏为原料、酚醛树脂为碳源,采用高温热解法在管式炉中碳化制备铅碳复合材料,考察了酚醛树脂与脱硫铅膏质量比、反应温度、反应时间对产物的影响。利用X射线粉末衍射仪对其进行检测,探究不同条件下所得产品成分上的差异;利用扫描电子显微镜对其进行SEM分析,观察其表面形貌及粒径大小,比较不同条件下所得样品微观结构上的不同;利用背散射BSEM和EDS能谱分析样品的元素分布情况。结果表明,酚醛树脂与脱硫铅膏质量比为4∶1、温度为450℃下反应2. 5 h制得的铅碳样品基本无团聚,且铅碳分布均匀。
Using desulfurization lead paste as raw material and phenolic resin as carbon source,lead-carbon composite is prepared through carbonization by high temperature pyrolysis in a tube furnace.Influences of the mass ratio of phenolic resin to desulfurization lead paste,reaction temperature and reaction time are studied. X-ray powder diffractometer is utilized to detect the composition differences of the samples prepared under different conditions;SEM analysis on the samples is carried out by scanning electron microscopy to observe the surface morphology and particle size,and compare the microscopic structure of the samples prepared under different conditions;Backscatter BSEM and EDS spectroscopy are employed to analyze the elemental distribution of samples.The results show that the obtained leadcarbon composite samples have no agglomeration and a uniform distribution of lead carbon when the mass ratio of phenolic resin and desulfurization lead paste is 4 ∶1,reaction has performed at 450℃ for 2. 5 h.
作者
于锦昭
柯昌美
杨金堂
柯海波
刘毅
YU Jin-zhao;KE Chang-mei;YANG Jin-tang;KE Hai-bo;LIU Yi(School of Chemistry and Chemical Engineering,Wuhan University of Science and Technology,Wuhan 430081,China)
出处
《现代化工》
CAS
CSCD
北大核心
2020年第4期148-152,共5页
Modern Chemical Industry
基金
湖北省技术创新专项(2017ACA180)。
关键词
复合材料
高温热解
团聚
脱硫铅膏
酚醛树脂
composite material
high temperature pyrolysis
agglomeration
desulfurization lead paste
phenolic resin
