高性能聚酯-醚二醇的合成及应用

Synthesis and Application of High Performance Polyester-Ether Glycol

以己二酸聚酯二醇为起始剂,以环氧烷烃为聚合单体,以碱金属为催化剂,合成聚酯-醚二醇,探讨催化剂用量对聚合反应的影响,并利用红外光谱(FTIR)、凝胶渗透色谱(GPC)等对其结构进行表征。利用自制的聚酯-醚二醇制备聚氨酯高回弹泡沫和聚氨酯弹性体,研究聚酯-醚二醇对其力学性能的影响。结果表明:聚酯-醚二醇聚合反应过程较佳的催化剂浓度为0.6%。聚酯-醚二醇应用于聚氨酯高回弹泡沫的添加量为15%时,对改善制品力学性能有显著效果;与传统的丙二醇聚醚相比,聚酯-醚二醇合成的聚氨酯力学性能具有显著优势。

Polyester-ether glycol was synthesized with poly(polyol adipate) as starting agent,epoxy alkane as the polymerization monomer,and alkali metal as catalyst.The effects of catalyst dosage on the polymerization was discussed,and its structure was characterized by FTIR and GPC.The self-made polyester-ether glycol was used to prepare polyurethane high-resilience foam and polyurethane elastomer,and the effects of polyester-ether glycol on their mechanical properties were studied.The results showed that the optimum catalyst concentration was 0.6%.When polyester-ether glycol was applied to polyurethane high resilience foam with the addition amount of 15%,it had a significant effect on improving the mechanical properties of the products.Compared with traditional propylene glycol polyether,polyurethane synthesized with polyester-ether glycol had significant advantages in mechanical properties.