低游离醛高羟甲基含量酚醛树脂的合成  

SYNTHESIS OF PF RESINS CONTAINING HIGH METHYLOL GROUP CONTENT AND LOW FREE FORMALDEHYDE CONTENT

作　　者：伏传龙[1] 鲁钢[1] 魏无际[1] 敖文亮 朱文元 

机构地区：[1]南京工业大学材料科学与工程学院,江苏南京210009 [2]常州天马集团,江苏常州213000

出　　处：《热固性树脂》2004年第5期17-19,23,共4页Thermosetting Resin

摘　　要：通过实验,以CaO作催化剂合成了低游离醛高羟甲基含量酚醛树脂。采用正交试验方法研究了催化剂用量、反应温度、反应时间对酚醛树脂的游离醛含量、羟甲基含量2个指标的影响。当n(苯酚)∶n(甲醛)=1∶1 2～1 3时,最优工艺条件为:n(催化剂)∶n(苯酚)物质的量比0 02、反应温度70℃、反应时间3h。In this paper,PF resins with low free formaldehyde and higher methylol content was synthesized with CaO as catalyst.The influence of different quantity of catalyst,reaction time and reaction temperature on the indexes of content of free formaldehyde and content of methylol group was investigated by means of orthogonal experiments.The major,secondary factors were given and the optimum technological condition about the course of reaction was (quantity of catalyst) 0.02;reaction temperature,70 ℃;reaction time,3 h.

关 键 词：酚醛树脂 正交试验 低游离醛 高羟甲基 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业]