【摘要】 介绍了JH-4548芳胺型聚醚多元醇的制备方法,讨论了聚醚起始剂种类、配比及合成工艺对JH-4548芳胺型聚醚多元醇质量及其合成的聚氨酯仿木结构硬泡性能的影响。结果表明,以芳胺化合物质量分数15%～20%,蔗糖5%～20%,山梨醇10%,甘油50%～70%制成复合起始剂;首批环氧丙烷(PO)加入量占总PO质量分数的25%时,与起始剂聚合所得聚醚的活性高,粘度适中,由它制备的聚氨酯仿木结构硬泡,可应用于汽车仪表盘骨架。更多还原

【Abstract】 Preparation of JH-4548 polyether polyol based on aromatic amine was introduced.The effects of species,ratio,synthesis technologies of polyether initiator on polyether polyol quality and foam properties were discussed.The results showed that the polyether activity was high,viscosities was suitable and the polyether was fitted special demand of PU wooden structure rigid foam when arylamine was 15%~20%,sucrose was 5%~20%,sorbitol was 10%,glycerol was 50%~70%,while at the beginning,25% epoxypropane and initiator were polymerized with no catalyst.It was used in automobile dashboard.更多还原