纤维素纳米纤维增强聚己内酯型聚氨酯复合材料的制备及其性能研究  

Preparation and Properties of Polycaprolactone Polyurethane Reinforced by Cellulose Nanofibers

作　　者：陈佳彬 马猛 陈思 施燕琴 吴波震 王旭 CHEN Jia-bin;MA Meng;CHEN Si;SHI Yan-qin;WU Bo-zhen;WANG Xu(College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China)

机构地区：[1]浙江工业大学材料科学与工程学院,浙江杭州310014

出　　处：《塑料工业》2018年第6期86-89,共4页China Plastics Industry

摘　　要：以双圈定性滤纸为原料提取得到纤维素纳米纤维(CNF),采用两步法制备了CNF增强聚己内酯型聚氨酯复合材料(CNF-TPU),并研究了CNF含量对复合材料拉伸强度的影响规律。结果表明,在聚氨酯合成过程中,CNF表面成功接枝了聚氨酯链;在低质量分数(0.04%)下,复合材料的拉伸强度从(23.1±1.5)MPa增加到(30.0±1.3)MPa,提高了30%。该研究扩宽了聚己内酯型聚氨酯材料的应用。Cellulose nanofibers （CNF） were extracted from double-staged filter paper, and then polyurethane composites （CNF-TPU） were prepared via in-situ polymerization with CNF. The effects of CNF content on the mechanical properties of the CNF-TPU composites were studied. The results show that some polyurethane chains could be chemically grafted onto CNF surface and CNF could be dispersed well through this method. The tensile strength of the CNF-TPU composites increases from （23.1±1.5） MPa to （30. 0±1.3） MPa at a low CNF-TPU content of 0.04wt% , increasing by 30%. This study expanded application filed of polycaprolactone polyurethane materials.

关 键 词：原位接枝 纤维素纳米纤维 拉伸强度 聚氨酯 复合材料 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]