北京林业大学学报2016，Vol.38Issue(10)：123-129,7.DOI:10.13332/j.1000--1522.20160068
生物质聚氨酯硬质泡沫材料的发泡工艺及结构表征
Preparation and structure characterization of biomass polyurethane rigid foam
摘要
Abstract
In order to study the optimal preparation technological procedure for biomass polyurethane rigid foam, we take liquefaction products of Salix cheilophila and isocyanate as main ingredients, OMMT as nucleating agents, stannous octoate as a catalyst, water as foaming agent for foam experiment. The effects of isocyanate, stannous octoate, OMMT and water on the apparent density and compression strength of foam were studied. The structure performance of the foam was characterized and tested by XRD, TEM, SEM and TG analysis respectively. The results showed that the influence of factors on foams followed the sequence of catalyst, foaming agent, stannous octoate and foaming agent. Under optimal conditions, the foaming material had about 0. 094 g/cm3 density and 0. 416 MPa compression strength. Intercalated or exfoliated OMMT can be prepared by adding just the right amount, which can significantly improve the mechanical properties, thermal stability and flame retardance of materials.关键词
沙柳/液化产物/聚氨酯泡沫/发泡工艺Key words
Salix cheilophila/liquefaction product/polyurethane foam/foaming process分类
农业科技引用本文复制引用
周宇,韩望,赵丽青,安珍..生物质聚氨酯硬质泡沫材料的发泡工艺及结构表征[J].北京林业大学学报,2016,38(10):123-129,7.基金项目
国家自然科学基金项目(31360160)、高等学校博士学科点专项(20121515110006)。 （31360160）
