Cationization of Corncob Holocellulose as a Paper Strengthening Agent
Cationization of Corncob Holocellulose as a Paper Strengthening Agent
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DOI：
10.15376/biores.11.1.1296-1306
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发表时间：
2015-12
期刊：
影响因子：
1.5
通讯作者：
Weitao He;Meng Wang;Xiaojuan Jin;Xian-liang Song
中科院分区：
文献类型：
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作者：
Weitao He;Meng Wang;Xiaojuan Jin;Xian-liang Song
本文采用亚氯酸钠对玉米芯粉进行脱除木质素的处理，并选择性地用阳离子剂对其进行改性。利用元素分析、傅里叶红外光谱（FTIR）和扫描电子显微镜（SEM）对其衍生物进行了研究。研究了阳离子剂用量、反应温度、粒径、纸张增强剂用量和纸浆pH值对纸张物理性能的影响。结果表明，阳离子玉米芯全息纤维素能提高纸张的拉伸指数、破裂指数和折叠耐久性。当阳离子剂用量为25%，反应温度为70℃时，得到的拉伸指数、破裂指数和折叠耐久性分别比对照纸提高了7.15%、13.74%和55.95%。原料的粒度和增强剂的用量对纸张的性能也有很大的影响。SEM分析表明，添加增强剂后，纤维的组合改善了纸张的强度性能。这些结果为玉米芯废弃物的增值利用提供了一种方法。
In this paper, milled corncob powder was treated with sodium chlorite to remove lignin, and the resulting holocellulose was optionally modified with cationic agent. The derivative product was investigated using elemental analysis, Fourier transform infrared (FTIR) spectroscopy, and scanning electron microscopy (SEM). The influences of the dosage of the cationic agent, reaction temperature, particle size, dosage of paper strengthening agent, and pH value of the pulp on the paper physical properties were studied. The results indicated that cationic corncob holocellulose can improve the tensile index, burst index, and folding endurance of paper. When the dosage of cationic agent was 25% and the reaction temperature was set to 70 °C, the resulting tensile index, burst index, and folding endurance increased by 7.15%, 13.74%, and 55.95%, respectively, when compared with the control paper. The particle size of the raw material and the dosage of strengthening agent also greatly influenced the paper’s properties. The SEM analysis showed that the combination of fibers improved the strength properties of the paper after adding the strengthening agent. These results provide a method for value-added use of corncob waste.