苎麻纤维改性制备吸油材料及其性能
Modification of Ramie Fiber to Prepare Oil-Absorbing Material and Its Properties

本文采用苎麻纤维为原料，配制不同质量浓度的氢氧化钠对其改性。对改性前后苎麻纤维的化学结构和微观形貌进行了表征，发现苎麻纤维表面羟基变少，疏水亲油性能增强，改性后苎麻纤维表面变得粗糙，孔结构增多，有利于吸油。论文考察其对花生油的吸油效果和保油性能，研究发现8%的氢氧化钠溶液改性后的苎麻纤维的吸附效果最好，4%的氢氧化钠溶液改性后的苎麻纤维的保油效果最好。
In this study, ramie fiber is used as raw materials and modified by sodium hydroxide with different mass concentration. It was found that the surface of modified ramie fiber became rough and had a lot of pore structure, and the number of hydroxyl groups on the surface of ramie fiber decreased and the hydrophobicity and lipophilicity of ramie fiber increased, which is beneficial to improve oil absorption. Oil absorbency and oil retention of ramie modified by NaOH solution with different concentrations for peanut oil adsorption were studied. It was found that ramie fiber modified by 8 wt% NaOH solution has the best adsorption effect, and by 8 wt% NaOH solution the best oil retention.