摘要
为了提升装配式建筑中碳纤维的气体吸附效果,对装配式建筑用碳纤维进行了空气气氛和氮气气氛下的活化处理,考察了活化温度对碳纤维形貌、结构和吸附性能的影响。结果表明,随着活化温度升高,碳纤维表面孔洞的数量有所增多,并在较高的活化温度下形成了狭长微孔。与氮气气氛下制备的碳纤维相比,空气气氛下制备的碳纤维都具有相对较高的氮气吸附量。在相同压力下,空气气氛下活化处理的碳纤维的二氧化碳吸附量要高于氮气气氛下的二氧化碳吸附量,且相同压力下二氧化碳吸附量从高至低顺序为:PCF-500、PCF-450、PCF-400、PCF-N。温度为0、25℃和40℃时活化处理后碳纤维的二氧化碳/氮气吸附比分别为10、20和30。
In order to improve the gas adsorption effect of carbon fiber in prefabricated buildings,the carbon fibers used in prefabricated buildings were activated under air atmosphere and nitrogen atmosphere,and the effects of activation temperature on the morphology,structure and adsorption properties of carbon fibers were investigated.The results showed that with the increase of activation temperature,the number of pores on the surface of carbon fiber increased,and narrow micropores were formed at higher activation temperature.Compared with the carbon fiber prepared in nitrogen atmosphere,the carbon fiber prepared in air atmosphere had a relatively high nitrogen adsorption capacity.Under the same pressure,the carbon dioxide adsorption capacity of the activated carbon fiber under the air atmosphere was higher than that under the nitrogen atmosphere,and the carbon dioxide adsorption capacity under the same pressure was in the order of PCF-500,PCF-450,PCF-400 and PCF-N.At temperatures of 0,25℃ and 40℃,the CO_(2)/nitrogen adsorption ratios of the activated carbon fibers were 10,20 and 30,respectively.
作者
周晶
ZHOU Jing(Guangdong Vocational College of Environmental Protection Engineering,Foshan 528216,Guangdong China)
出处
《粘接》
2025年第3期108-110,118,共4页
Adhesion
关键词
装配式建筑
碳纤维
活化温度
气氛条件
吸附性能
prefabricated building
carbon fiber
activation temperature
atmosphere conditions
adsorption performance
作者简介
周晶(1986-),女,硕士,讲师,研究方向:建筑材料,E-mail:liangzhou917@sina.com。
