生物质化学工程2017，Vol.51Issue(2)：31-36,6.DOI:10.3969/j.issn.1673-5854.2017.02.006
水稻秸秆基聚氨酯泡沫制备工艺改进及性能表征
Improvement of Preparation Process and Characterization of Liquefied Rice Straw Based Polyurethane Foam
摘要
Abstract
The water-blown polyurethane form(PUF) was produced with liquefied rice straw as raw materials,N,N,N,N,N-pentamethyl diethylenetriamine(P5) and N,N-dimethyl cyolohexlemine(P8) as co-catalyst.Physicochemical properties of the prepared polyurethane foams were investigated.Then the optimum preparation conditions were confirmed.Material testing machine,thermogravimetric analysis(TGA),Fourier transform infrared spectrometer(FT-IR) and scanning electron microscope(SEM) were conducted to characterize the mechanical properties,thermal stabilities,chemical structures and microstructures of the polyurethane foam.The results showed that the optimum preparation conditions were water content 2％,the proportion of co-catalyst 2％,mass ratio of P5 and P8 in co-catalyst 1.5,isocyanate index 1.2 and the dosage of foam stabilizer(silicone oil B8462) 4％.Under these conditions,the tensile strength and compressive strength of the product with density of 40kg/m3 were 309kPa and 154kPa,respectively.The mechanical property of the synthesized liquefied rice straw based polyurethane foam was better than that of the sample derived from organotin and tertiary amine.In addition,the synthesized polyurethane foam had good thermal stability.关键词
水稻秸秆/液化/叔胺类复合催化剂/聚氨酯泡沫/性能表征Key words
rice straw/liquefaction/tertiary amine co-catalyst/polyurethane foam/characterization分类
化学化工引用本文复制引用
付文星,王敦,王万雨,张玉苍..水稻秸秆基聚氨酯泡沫制备工艺改进及性能表征[J].生物质化学工程,2017,51(2):31-36,6.基金项目
国家自然科学基金资助项目(51263006) （51263006）
海南省自然科学基金项目(20152027) （20152027）
海南省产学研一体化项目(CXY20150019) （CXY20150019）
