纤维素橡胶泡沫复合材料用作吸油剂

Poptorn Klaykhem, Pruttipong Pantamanatsopaopa, Warunee Ariyawiriyanan
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引用次数: 0

摘要

本研究的重点是探索用木棉纤维(KF)作为吸油材料制造纤维素橡胶泡沫(CRF)。采用氢氧化钠表面处理、过氧化氢处理和酸水解等化学方法制备纤维素纳米晶体(CNC)。核磁共振(NMR)光谱测试结果表明,木棉纤维经过化学改性后,木质素和半纤维素分别在 17、52 和 148 ppm 的峰值消失。透射电子显微镜(TEM)显示,木棉纤维水解过程产生了纳米级纤维素,产率为 72%。研究中使用的木棉纤维纤维素纳米晶体(KF-CNC)的数量在纤维素橡胶泡沫形成过程中从 0 到 5 phr 不等,结果发现泡沫密度随着木棉纤维纤维素纳米晶体数量的增加而增加。此外,随着木棉纤维中纤维素纳米晶体数量的增加,纤维素橡胶泡沫抗压强度的塌陷率也降低了。傅立叶变换红外光谱(FTIR)证实,随着木棉纤维中纤维素纳米晶体含量的增加,木棉纤维中的纤维素纳米晶体融入了橡胶泡沫(RF)中。含有 1 phr 木质纤维素纳米晶体的纤维素橡胶泡沫复合材料的吸油量最高,达到 17.8 g/g。当水和油混合时,纤维素橡胶泡沫复合材料先吸油后吸水。此外,纤维素橡胶泡沫可重复使用 50 次以上。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Cellulose rubber foam composite use as oil absorbent
The focus of this study was to explore the fabrication of cellulose rubber foam (CRF) using kapok fibers (KF) as an oil absorbent material. Chemical methods such as sodium hydroxide surface treatment, hydrogen peroxide treatment, and acid hydrolysis were employed to prepare cellulose nanocrystals (CNC). The results of the nuclear magnetic resonance (NMR) spectroscopy test indicated that the chemical modification of kapok fiber resulted in the removal of lignin and hemicellulose by a disappearing peak at 17, 52, and 148 ppm, respectively. Hydrolysis process of the kapok fiber resulted in nanometer-sized cellulose, with a yield of 72% as revealed by transmission electron microscopy (TEM). The amount of cellulose nanocrystals from kapok fiber (KF-CNC) used in the study varied from 0 to 5 phr during the formation of the cellulose rubber foam, and it was found that the foam density increased as the number of cellulose nanocrystals from kapok fiber increased. Additionally, the percentage of collapse from the compressive strength of cellulose rubber foam decreased as the amount of cellulose nanocrystals from kapok fiber increased. Fourier transform infrared spectroscopy (FTIR) confirmed the incorporation of cellulose nanocrystals from kapok fiber into the rubber foam (RF) as the amount of cellulose nanocrystals from kapok fiber increased. The oil absorbent of cellulose rubber foam composite with 1 phr cellulose nanocrystals from kapok fiber show highest absorption capacity was 17.8 g/g. The cellulose rubber foam composite absorbs oil before absorbing water when water and oil are combined. Moreover, the cellulose rubber foam could be reused more than 50 times.
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