纤维素纳米纤维改性水性聚氨酯树脂涂饰剂的制备及其应用性能研究  

Preparation and Application Properties of Waterborne Polyurethane Resin Finishing Agent Modified by Cellulose Nanofiber

作　　者：李硕琳 庞晓燕 涂龙萍 曲树光 郭松 刘海腾 丁志文 LI Shuolin;PANG Xiaoyan;TU Longping;QU Shuguang;GUO Song;LIU Haiteng;DING Zhiwen(China Leather&Footwear Research Institute Co.,Ltd.,Beijing 100015,China;Hebei Industrial Technology Research Institute for Green Manufacture of Leather,Xinji 052360,China;China National Pulp and Paper Research Institute Co.,Ltd.,Beijing 100102,China;Qihe Lihou Chemical Co.,Ltd.,Dezhou 251108,China)

机构地区：[1]中国皮革制鞋研究院有限公司,北京100015 [2]河北省绿色制革产业技术研究院,河北辛集052360 [3]中国制浆造纸研究院有限公司,北京100102 [4]齐河力厚化工有限公司,山东德州251108

出　　处：《中国皮革》2024年第8期1-5,共5页China Leather

基　　金：中国轻工集团科技创新重点项目(2020ZQK05);河北省绿色制革产业技术研究院认定补助经费。

摘　　要：本文以水性聚氨酯树脂为原料,经纤维素纳米纤维改性制备了一种高强度的水性聚氨酯树脂涂饰剂。通过旋转黏度仪和拉伸试验机等对改性前后的水性聚氨酯乳液的力学性能等进行表征,进一步通过摩擦色牢度仪等对聚氨酯树脂涂饰剂涂饰成品革的使用性能进行评估,探究纤维素纳米纤维用量对聚氨酯树脂的性能影响。结果显示,纤维素纳米纤维对聚氨酯树脂具有良好的改性效果。当加入聚氨酯树脂干重0.3%的纤维素纳米纤维时,聚氨酯树脂的拉伸强度、撕裂强度和断裂伸长率均大幅提高,其中拉伸强度提升幅度高达97.44%。In this paper,a high strength waterborne polyurethane resin was prepared by modifying cellulose nanofi⁃bers using waterborne polyurethane resin as raw material.The mechanical properties of waterborne polyurethane resin before and after modification were characterized by rotary viscometer and tensile testing machine,and the use perform⁃ance of polyurethane resin on finished leather was evaluated by rubbing color fastness tester.The effect of cellulose nanofibers on the properties of polyurethane resin was investigated.The results show that cellulose nanofibers have a good modification effect on polyurethane resin.When 0.3%cellulose nanofibers with dry weight of polyurethane resin is added,the tensile strength,tear strength,and elongation at break of polyurethane resin have all been significantly improved,with a tensile strength increase of up to 97.44%.

关 键 词：纤维素纳米纤维 水性聚氨酯树脂 皮革涂饰 拉伸强度 

分 类 号：TQ64[化学工程—精细化工]