| 麦草碱木质素聚氨酯薄膜的合成条件优化 |
| |
| 引用本文： | 靳帆,方桂珍,刘志明,李珊珊,赵应丽. 麦草碱木质素聚氨酯薄膜的合成条件优化[J]. 东北林业大学学报, 2007, 35(9): 73-74,77 |
| |
| 作者姓名： | 靳帆 方桂珍 刘志明 李珊珊 赵应丽 |
| |
| 作者单位： | 生物质材料科学与技术教育部重点实验室(东北林业大学),哈尔滨,150040 |
| |
| 摘 要： | 以麦草碱木质素、聚乙二醇(PEG)及多苯基甲烷多异氰酸酯(PAPI)为原料,以N,N-二甲基甲酰胺为溶剂,使用溶液固化成型法制备了碱木质素聚氨酯薄膜。采用差示扫描量热法(DSC)表征了薄膜的热性能,并测定了木质素聚氨酯薄膜的弹性模量、拉伸强度和拉伸率。试验结果表明:当使用PEG300、异氰酸酯指数为2.2、木质素加入量为11%(质量分数)时,聚氨酯薄膜的弹性模量为0.52GPa、拉伸强度69.1MPa、拉伸率15.6%,且成膜性能良好。
|
| 关 键 词： | 麦草碱木质素 聚乙二醇 多苯基甲烷多异氰酸酯 聚氨酯薄膜 |
| 修稿时间： | 2006-12-20 |
Optimization of Synthetic Conditions for Lignin-based Polyurethane Film |
| |
| Jin Fan,Fang Guizhen,Liu Zhiming,Li Shanshan,Zhao Yingli. Optimization of Synthetic Conditions for Lignin-based Polyurethane Film[J]. Journal of Northeast Forestry University, 2007, 35(9): 73-74,77 |
| |
| Authors: | Jin Fan Fang Guizhen Liu Zhiming Li Shanshan Zhao Yingli |
| |
| Affiliation: | Key Laboratory of Bio-based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin 150040, P.R. China |
| |
| Abstract: | Lignin-based polyurethane(PU)films were prepared from wheat straw alkali lignin by solution casting with polyethylene glycol(PEG)and polymeric phenyl methane-diisocyanate(PAPI)in the solvent of N,N-dimethyl-formamide(DMF).The thermal performances of lignin-based PU films were tested by Differential Scanning Calorimetry(DSC).Furthermore,the Young's modulus,tensile strength and elongation at break were also determined for the lignin-based PU films.Results showed that the Young's modulus,tensile strength and elongation at break were 0.52 GPa,69.1 MPa and 15.6 percent,respectively,under the conditions of NCO OH ratios of 2.2 and 11 percent lignin content(calculated as the weight of PEG)with PEG 300,and its moulding performance was good. |
| |
| Keywords: | Wheat straw alkali lignin PEG PAPI Polyurethane films |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
