碳纤维复合炭黑导电砂浆导电性能及其电热功能研究  

Research on the electrical conductivity and heating function of carbon fiber composite carbon black conductive mortar

作　　者：李金龙 顾永明 张蕊 俞锋[3,4] 张壮 张亚男 华苏东 Li Jinlong;Gu Yongming;Zhang Rui;Yu Feng;Zhang Zhuang;Zhang Yanan;Hua Sudong(Suzhou Sanjia Transportation Engineering Co.,Ltd.,Suzhou,215131,China;不详)

机构地区：[1]苏州三佳交通工程有限公司,江苏苏州215131 [2]苏州交通投资集团有限责任公司,江苏苏州215004 [3]苏州混凝土水泥制品研究院有限公司,江苏苏州215001 [4]江苏省高耐久混凝土工程技术研究中心,江苏苏州215001 [5]南京工业大学,江苏南京210000

出　　处：《水泥工程》2024年第1期89-92,共4页Cement Engineering

基　　金：社会发展——碳达峰碳中和科技创新专项资金(重大科技示范):BE2022608。

摘　　要：本研究介绍了碳纤维复合炭黑导电砂浆的制备方法、导电性能和电热功能研究。导电砂浆作为一种新型的功能性建筑材料,具有导电性能和电热功能,可以应用于感应加热、防冰除雪等多种场景。为了改善导电砂浆的性能,试验探究了采用碳纤维和炭黑复合的制备方法,并分析了碳纤维掺量对导电砂浆电阻率和电热功能的影响。实验结果表明,最佳的碳纤维掺量为胶凝材料质量分数的1%,炭黑掺量为胶凝材料质量分数的0.4%,在通入10 V交流电压下1 h后,试样温度升高13.3℃。电性能测试还证实了碳纤维复合炭黑导电砂浆具有低电阻率和高发热功率密度,具有较强的融雪或除冰能力。然而,为了将这一试验成果应用于更大的场景,还需要进一步研究导电砂浆试样。This study presents the preparation method,electrical conductivity,and electrical heating functionality of carbon fiber composite carbon black conductive mortar.As a new type of functional building material,conductive mortar exhibits electrical conductivity and electrical heating functionality,making it suitable for various applications such as induction heating,anti-icing,and snow removal.In order to enhance the performance of conductive mortar,the study investigates the preparation method using a combination of carbon fiber and carbon black,and analyzes the effect of carbon fiber content on the electrical resistivity and electrical heating functionality of the mortar.Experimental results reveal that the optimal carbon fiber content is 1%of the mass fraction of the binder material,while the carbon black content is 0.4%of the mass fraction of the binder material.After applying a 10 V AC voltage for 1 h,the temperature of the sample increases by 13.3℃.Electrical performance tests further confirm that the carbon fiber composite carbon black conductive mortar has low electrical resistivity and high heating power density,thus exhibiting strong snow melting or de-icing capabilities.Nonetheless,in order to apply these experimental findings to larger-scale applications,further research on conductive mortar samples is required.

关 键 词：导电砂浆 碳纤维 电阻率 电热功能 发热功率 

分 类 号：TQ172.6[化学工程—水泥工业]