不同种类低共熔溶剂改性木质纤维素制备阻燃复合材料  

Different Kinds of Deep Eutectic Solvents Modified Lignocellulose to Prepare Flame Retardant Composites

作　　者：魏利萍[1] 李翔宇 刘英俊[1] 杜爱华[1] Liping Wei;Xiangyu Li;Yingjun Liu;Aihua Du(School of Polymer Science and Engineering,Qingdao University of Science and Technology,Qingdao 266042,China)

机构地区：[1]青岛科技大学高分子科学与工程学院,山东青岛266042

出　　处：《高分子材料科学与工程》2024年第12期35-44,共10页Polymer Materials Science & Engineering

基　　金：华南理工大学聚合物成型加工工程教育部重点实验室开放课题(KFKT2301);国家自然科学基金资助项目(52103058);山东省自然科学基金资助项目(ZR2021QE104)。

摘　　要：木质纤维素的可燃性给其在纺织、建筑和装饰等领域的应用带来了极大的挑战。文中选用2种低共熔溶剂改性木质纤维素,然后负载聚磷酸铵-氢氧化铝(APP-ATH)双效阻燃剂制备了阻燃复合材料。红外光谱显示改性后的木质纤维素表面基团种类发生变化,扫描电镜图像中改性的木质纤维素表面粗糙,随着阻燃剂含量的增加,负载的阻燃剂量增多。通过锥形量热仪试验,发现与纯木质纤维素相比,改性负载阻燃剂制备的复合材料阻燃效果明显。根据三点弯曲试验得到的力学性能结果,氯化胆碱/腰果酚体系弯曲强度高于氯化胆碱/乙二醇/草酸体系,且氯化胆碱/腰果酚体系的弯曲强度高于纯木质纤维素。本工作将使木质纤维素基阻燃材料的应用更加广泛和深入。The flammability of lignocellulose poses a great challenge to its application in textile,architecture and decoration.In this paper,two kinds of deep eutectic solvents were used to modify lignocellulose,and then loaded with ammonium polyphosphate-alumina hydroxide(APP-ATH)double effect flame retardant to prepare flame retardant composites.The results show that the modified lignocellulosic surface groups change through FT IR spectra,and the surface of modified lignocellulosic is rough,and the amount of flame retardant loaded lignocellulose increases with the increase of flame retardant content in SEM images.Through cone calorimeter experiment,compared with pure lignocellulose,the flame retardancy of the lignocellulose based ammonium polyphosphate/aluminum hydroxide(LPA)composites prepared with the modified loaded flame retardants is obvious.The bending strength of choline chloride/cardano system is higher than that of choline chloride/ethylene glycol/oxalic acid system,and the bending strength of choline chloride/cardano system is higher than that of pure lignocellulose.This work make the application of lignocellulosic flame retardancy more extensive and in-depth.

关 键 词：低共熔溶剂 木质纤维素 阻燃 力学性能 

分 类 号：TQ352.79[化学工程]