使用冷场发射扫描电镜对制备得到的球磨木质素基聚氨酯进行分析。木质素购自TCI公司,取四氢呋喃、木质素以及一定量的HDI加入配有氮气保护的三口烧瓶中,搅拌,室温下自然风干,再烘干,得到改性木质素。
The lignin-based polyurethane prepared by ball milling was analyzed by cold field emission scanning electron microscopy.The lignin was purchased from TCI Company. Tetrahydrofuran, lignin and a certain amount of HDI were added into a three-way flask with nitrogen protection, stirred, air-dried at room temperature, and then dried to obtain modified lignin.