粗酚部分替代苯酚制备酚醛泡沫保温材料  

Preparation of thermal insulating phenolic foams with phenol partly replaced by crude phenol

作　　者：袁晓晓[1] 陈海松[1] 沈国鹏[1] 

机构地区：[1]郑州大学化工与能源学院,河南省郑州市450000

出　　处：《合成树脂及塑料》2013年第3期33-38,共6页China Synthetic Resin and Plastics

摘　　要：采用多聚甲醛、粗酚和苯酚为原料制备了酚醛泡沫保温材料,研究了聚合时间、聚合温度、醛酚[多聚甲醛与总酚(粗酚和苯酚的总称)]摩尔比、催化剂用量和粗酚替代量等合成条件对可发性酚醛树脂性能的影响。经优化的酚醛树脂合成条件:聚合时间为3.0 h,聚合温度为85℃,醛酚摩尔比为1.60,催化剂用量为0.04 mol(总酚1.00 mol),粗酚替代量为总酚质量的30%。酚醛泡沫(表观密度为45 kg/m3)的导热系数为0.028 W/(m.K),氧指数为36%,压缩强度为0.29 MPa。Thermal insulating phenolic foams phenol as raw materials. The effects of synthesizing ture, molar ratio of paraformaldehyde to phenols incl were prepared with paraformaldehyde, conditions involving the reaction time, uding crude phenol and phenol, catalyst crude phenol and reaction tempera- content and crude phenol substitution on the properties of expandable phenolic resins were studied. The optimized conditions for synthesizing phenolic resin were as follows： the reaction time was 3.0 hours, the reaction temperature was 85 ℃,the molar ratio of paraformaldehyde to phenols was 1.60, the content of the catalyst was 0.04 tool when phenols was 1.00 mol, and the crude phenol substitution accounted for 30% of phenols. The phenolic foams with apparent density of 45 kg/m3 had thermal conductivity of 0.028 W/（m · K）, oxygen index of 36 and compress strength of 0.29 MPa.

关 键 词：酚醛树脂 多聚甲醛 粗酚 酚醛泡沫 保温材料 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业]