浙江农林大学学报2012，Vol.29Issue(2)：203-209,7.
碱木质素-聚氨酯泡沫功能材料的制备、表征及性能
Preparation, characterization, and properties of lignin based, rigid polyurethane foam materials
摘要
Abstract
The product structure was characterized by infrared spectroscopy (IR); the influence factors on alkali lignin based rigid polyurethane foam (RPUF) productivity were analyzed using the isocyanate index with the amount of foam, catalyst, and foam stabilizer as indicators; and the thermal RPUF properties were determined. Refined alkali lignin was obtained after chemical treatment of raw alkali lignin. RPUF was synthesized by the foam method using refined alkali lignin as the alcohol hydroxyl material and isophorone diisocyanate as the reactant. Results showed that RPUF was successfully synthesized with the amount of polyethylene glycol 400 (PEG 400), isophorone diisocyanate, methyl silicone oil, stannous octoate, and n-pentane as well as the isocyanate index all affecting ultimate productivity. Different composition ratios of alternative polyethyleneglycol alkali lignin affected the water absorption rate and thermal properties of RPUF. When the alkali lignin additive was in the 10% - 15% range, the synthesized ligmn-polyurethane foam material parameters met industrial production requirements. Thus, this research could provide a helpful method for complete usage of unused raw alkali lignin. [Ch, 5 fig. 3 tab. 19 ref.]关键词
碱木质素/吸水率/聚氨酯泡沫/热性能分析Key words
alkali lignin/ water absorption rate/ rigid polyurethane foam (RPUF)/ thermal property analysis分类
农业科技引用本文复制引用
何凯,陈可可,郭明..碱木质素-聚氨酯泡沫功能材料的制备、表征及性能[J].浙江农林大学学报,2012,29(2):203-209,7.基金项目
浙江省自然科学基金资助项目(Y5090179) （Y5090179）
浙江农林大学科研创新基金资助项目(2112009007) （2112009007）
