摘要
以蔗渣纤维为生物质原料,通过热重分析仪和扫描电镜,考察不同升温速率、不同气氛下蔗渣纤维的炭化特性。研究不同预处理方法对蔗渣纤维炭化特性的影响及蔗渣基炭材料的形貌结构。随着升温速率增加,蔗渣纤维在氮气氛下炭化过程的最大失重速率对应的热分解温度明显升高。蔗渣纤维在空气氛下的最大失重速率对应的温度为347℃,低于氮气氛下最大失重速率对应的温度372℃。不同的预处理方法对蔗渣纤维的成分比例影响略有不同,导致炭化过程的热分解温度有所差别。不同的预处理方法得到的蔗渣纤维在炭化后都保持很好的纤维结构,其纤维直径主要取决于炭化前蔗渣纤维的直径。蔗渣纤维制备炭纤维材料完全可行,对预处理方法调控可以制备不同的炭纤维材料。
The carbonization properties of bagasse fiber were studied at different heating rate and under different atmosphere. The influence of different pretreatment methods on the carbonization properties of bagasse fiber and the morphology structure of bagasse carbon materials were researched by using thermogravimetric analyzer （TG） and scanning electron microscopy （SEM）. The decomposition temperature of BF in nitrogen atmosphere increased with the heating rate increased. The decomposition temperature of BF in air atmosphere was 347℃ lower than 372℃ in nitrogen atmosphere. The bagasse fiber composition was different with different pretreatment methods, leading to the different decomposition temperature of carbonization process. The different bagasse carbon materials remained good fiber structure, and the fiber diameter mainly depended on the diameter of bagasse fiber before carbonized. The preparation of carbon fiber materials with bagasse fiber was completely feasible, and the pretreatment method can control the preparation of different carbon fiber materials.
作者
曾建
李锦荣
梁磊
陈瑞荣
马年方
ZENG Jian LI Jin-rong LIANG Lei CHEN Rui-rong MA Nian-fang(Guangdong Provincial Bioengineering Institute （Guangzhou Sugarcane Industrial Research Institute）/Guangdong Key Lab of Sugarcane Improvement ＆ Bio-Refinery, Guangzhou 510316 ZGuangdong Engineering Research ＆ Development of Plant Fiber, Guangzhou 51031 Guangzhou Key Laboratory for Comprehensive Utilization of Plant Fiber, Guangzhou 510316 Guangdong Province Engineering Laboratory for High-Value Utilization of Biomass, Guangzhou 510316)
出处
《甘蔗糖业》
2017年第1期29-36,共8页
Sugarcane and Canesugar
基金
广东省科技计划项目(2015A010105018
2016A010103018)
科技部院所技术开发研究专项资金(2013EG111222)
转制院所创新能力专项资金(2014EG111227)
广东省科学院专项资金(2016GDASPT-0108)
关键词
蔗渣纤维
预处理
炭化
Bagasse Fiber
Pretreatment
Carbonization
