溶剂和催化剂对低碳Al2O3-C材料性能的影响  

Influence of solvents and catalyzerons on properties of low carbon Al2O3-C materials

作　　者：闫广周[1] 王鑫惠 马渭奎[1] 杨凤玲[1] 刘国齐[1] 于建宾[1] 钱凡[1] Yan Guangzhou;Wang Xinhui;Ma Weikui;Yang Fengling;Liu Guoqi;Yu Jianbin;Qian Fan(State Key Laboratory of Advanced Refractories,Sinosteel Luoyang Institute of Refractories Research Co.,Ltd.,Luoyang 471039,Henan,China)

机构地区：[1]中钢集团洛阳耐火材料研究院有限公司先进耐火材料国家重点实验室,河南洛阳471039

出　　处：《耐火材料》2020年第5期430-433,共4页Refractories

摘　　要：研究了不同溶剂(乙醇EA、乙二醇EG、糠醇FA和糠醛FF)对酚醛树脂(PF)炭化残炭率的影响,以及不同溶剂(EA、FA、FF)和催化剂硝酸镍对埋碳热处理后低碳Al2O3-C材料试样致密度、常温强度、高温强度、抗热震性的影响。结果表明:1)酚醛树脂在800和1200℃的炭化残炭率均按所用溶剂EA、EG、FA、FF的顺序增大。2)溶剂种类和是否添加硝酸镍,对800和1200℃埋碳热处理后低碳Al2O3-C试样的致密度均没有影响。3)硝酸镍添加情况相同时,使用EA的低碳Al2O3-C试样的常温抗折强度和高温抗折强度与使用FA的差别很小,使用FF的低碳Al2O3-C试样的常温抗折强度和高温抗折强度均显著大于使用EA和FA的;溶剂相同时,添加硝酸镍的低碳Al2O3-C试样的常温抗折强度和高温抗折强度均比未添加硝酸镍试样的大。4)硝酸镍添加情况相同时,低碳Al2O3-C试样的抗热震性按所用溶剂EA、FA、FF的顺序增大;溶剂相同时,添加硝酸镍试样的抗热震性比未添加硝酸镍试样的高。Effects of different solvents(ethanol EA,glycol EG,furfuralcohol FA and furfural FF)on the carbon residue rate of phenolic resin(PF),different solvents(EA,FA and FF)and catalyst nickel nitrate on the density,cold strength,hot strength and thermal shock resistance of low carbon Al2O3-C materials heat-treated in carbon embedded condition were researched.The results show that:(1)the carbon residue rate of phenolic resin at 800℃and 1200℃increases in the order of the used solvents EA,EG,FA,and FF;(2)the type of solvent and the addition of nickel nitrate have no effect on the density of the low carbon Al2O3-C specimens heat treated at 800℃and 1200℃in carbon embedded condition;(3)with the same adding condition of nickel nitrate,the CMOR and HMOR of the low carbon Al2O3-C specimens with EA or FA have little difference,which are obviously lower than those of the specimens with FF;with the same solvent,the CMOR and HMOR of the specimens with nickel nitrate are higher than the ones without nickel nitrate;(4)with the same adding condition of nickel nitrate,the thermal shock resistance of the low carbon Al2O3-C specimens increases in the order of the used solvents EA,FA,and FF;with the same solvent,the thermal shock resistance of the specimens with nickel nitrate is higher than that of the ones without nickel nitrate.

关 键 词：低碳Al2O3-C材料 酚醛树脂 溶剂 残炭率 抗热震性 

分 类 号：TQ175.1[化学工程—硅酸盐工业]