改性糠醛的合成、表征及其在环氧灌浆材料中的应用  

Synthesis and characterization of modified furfural and its application in epoxy grouting materials

作　　者：高南[1] 张亚峰[2,3] 邝健政[1,2,3] 陈玉放[1] 王永珍[1] 

机构地区：[1]中国科学院广州化学研究所,广东广州510650 [2]中科院广州化学灌浆工程有限公司,广东广州510070 [3]广东省化学灌浆工程技术研究开发中心,广东广州510650

出　　处：《新型建筑材料》2010年第5期70-74,99,共6页New Building Materials

基　　金：广东省自然科学基金资助项目(9151065004000002)

摘　　要：通过糠醛与含有α-H的正辛醛发生羟醛缩合反应,生成一种新的毒性小甚至基本无毒的改性3-呋喃基-2-己基-丙烯醛,作为稀释剂代替具有毒性、挥发性较大的糠醛,应用于环保型高渗透型环氧树脂灌浆材料中,并对其固结体的物理力学性能进行初步探索。分别讨论了催化剂、反应温度、反应时间、反应物的比例等因素对产率的影响,结果表明,在0.5 g/mL催化剂(以糠醛体积折算)、反应温度为45℃、反应时间为3 h、n(糠醛)∶n(正辛醛)=1∶1.2条件下,产率可达到82.2%。并采用UV、IR、1H NMR、MS等分析手段对纯化后的产物进行了结构表征。In this paper,3-furyl-2-hexyl-Acrolein was synthesized by aldol condensation reaction using furfural and n-octyl aldehyde containing a-H. With low toxicity,3-furyl-2-hexyl-Acrolein would substitute toxic and volatile furfural in the epoxy diluent to form environmental-friendly epoxy resin grouting material. Its physical performances of the consolidated substance were investigated preliminarily. Effects of catalyst,reaction temperature,reaction time and the ratio of reactants on the yield were discussed to get the optimum reaction conditions. The results showed thai yield of 82.2% was got when reaction conditions were catalyst of 0.5 g/mL （conversed according to the volume of furfural）, temperature of 45 ℃, time of 3 h and n （Furfural）：n （n-Octyl aldehyde）=1：1.2. The purified product of 3-furyl-2-hexyl-Acrolein was characterized by UV,IR, 1H NMR and MS techniques.

关 键 词：3-呋喃基-2-己基-丙烯醛 糠醛 正辛醛 环氧灌浆材料 

分 类 号：TV543.2[水利工程—水利水电工程]