硼酸-桐油双改性酚醛树脂的表征及反应机理研究  

Research on Characterization and Reaction Mechanism of the Phenolic Resin Binary Modified by Boric Acid &Tung Oil

作　　者：李屹[1] 王满力[2] 周元康[1] 

机构地区：[1]贵州大学机械工程学院,贵州贵阳550003 [2]贵州大学化学工程学院,贵州贵阳550003

出　　处：《广东化工》2010年第6期5-6,共2页Guangdong Chemical Industry

基　　金：国家自然科学基金项目(50563001)

摘　　要：文章利用实验及IR图谱分析的方法,对硼酸-桐油双改性酚醛树脂的结构进行了表征,并对其反应机理进行了分析。结果表明,改性后树脂分子中生成高键能的B-O键及含硼的三向交联结构,可使树脂达到耐热性提高的目的;引入了桐油柔性链,桐油分子中部分双键打开,连接于苯环的邻位或对位处,从而使得刚性的硼酚醛树脂分子链段中嵌有柔性的烷基长链,形成网状结构,起到内增韧作用,使树脂的柔韧性得到改善。The reaction mechanism of phenolic resin binary modified by boric acid tung oil was analyzed by the methods of experimental analysis and IR spectra analysis. The results indicated that the inorganic element boron constitutes B-O bond with high bond energy and three way cross-linked structure in resin, so the thermal resistance of rein is improved. The flexible chain molecular of tung oil enters into resin carbon skeleton structural through the resin modification. The partial double bond of tung oil is split and linked at the ortho or para position of benzene ring. Thus, the rigid boron phenolic resin molecules are linked with flexible long alkyl chain to form net structure. This intersectional structure is good at toughness, so the toughness of resin is improved.

关 键 词：树脂改性 反应机理 IR 

分 类 号：TQ645.1[化学工程—精细化工]