落叶松树皮改性制备生物质吸油材料的研究

以林产废弃物落叶松树皮为原材料,丙酸酐为化学改性剂,在无溶剂化学反应体系中以氮气为保护气,采用酰化改性的方法制备生物质吸油材料。研究了落叶松树皮粒径大小和改性时间对材料吸油性能的影响,并对吸油材料进行了可重复利用性的测试。结果表明,随着材料颗粒的变小和酰化改性时间的增加,材料比表面积增大,毛细管吸附作用增强,酰化改性程度更加充分,使材料的吸油性能增强,采用该法制备的吸油材料通过脱吸附处理,可重复利用。通过红外光谱(FT-IR)、扫描电子显微镜(SEM)、热重分析(TAG)和X-射线衍射仪(XRD)分别对材料官能团、微观形态、材料的热稳定性能和材料的结晶度进行了分析表征。

Study on preparation of biomass oil absorption material from larix barks

In solvent-free system and with the protection of nitrogen gas,biomass oil absorption material is obtained by acylation modification methods with larix barks as raw materials and propionic anhydride as chemical.The influence factors on oil-absorbing properties is studied,such as larix barks of particle size and modified time,and the material properties of repeat use is tested.The result show,the oil sorption properties would augment as material particles decreased and acylation modification time increased,t...