生物质化学工程Issue(1)：11-16,6.DOI:10.3969/j.issn.1673-5854.2016.01.003
巨菌草沼渣制备液化多元醇及合成聚氨酯的研究
Synthesis of Liquefied P olyol from Biogas Residues of Pennisetum giganteum and Its Application in P reparation of P olyurethane
摘要
Abstract
The biogas residues of Pennisetum giganteum were liquefied into bio-polyol in the mixed solvent of poly-ethyleneglycol ( PEG400) and glycerin. The influences of liquefaction conditions on the process of liquefaction were studied. The results indicated that the optimal conditions were mass ratio of PEG400 and glycerin 1.5∶1, mass ratio of liquid and solid 2.9∶1, mass fraction of sulfuric acid compared to the mixed solvent 5%, liquefaction temperature 160℃ and liquefaction time 1.5 h.Under these conditions, the hydroxyl value of the liquefaction product was 498 mg/g. The best performance of polyurethane foam was obtained by bio-polyol instead of polyether polyol with the mass ratio of 1∶1, and the density and compressive strength were 38.7 kg/m3 and 0.21 MPa.关键词
巨菌草/沼渣/液化多元醇/聚氨酯硬泡Key words
Pennisetum giganteum/biogas residue/liquefied-polyol/rigid polyurethane foam分类
化学化工引用本文复制引用
于智豪,肖正,贾瑞博,赵超,刘斌..巨菌草沼渣制备液化多元醇及合成聚氨酯的研究[J].生物质化学工程,2016,(1):11-16,6.基金项目
国家自然科学基金资助项目(31370146) （31370146）
福建省教育厅科技项目(JB13047) （JB13047）
