摘要
以环氧丙烷(PO)、邻苯二甲酸酐(PA)为原料,三(2-羟乙基)异氰脲酸酯(THEIC)为起始剂,采用实验室自制双金属氰合配合物(DMC)为催化剂,合成具有类似于异氰酸酯三聚结构的异氰脲酸-苯酐聚醚酯多元醇。考察了聚合温度及催化剂的质量分数对聚合反应的影响。结果表明:在温度为135℃,催化剂的质量分数为440×10-6的条件下,催化剂的催化效率和产率最高,诱导期和反应时间缩短,生产效率提高。通过对异氰脲酸-苯酐聚醚酯多元醇基与聚环氧丙烷聚醚基泡沫材料的氧指数测试,证明了异氰脲酸-苯酐聚醚酯多元醇能使制得聚氨酯泡沫材料的阻燃性提高。
Isocyanurate-phthalate polyether ester polyol, which structure is similar with isocyanate trime- rization structure, can be synthesized by propylene oxide（P（））, phthalic anhydride （PA） as raw materials, 1,3,5 tris（2-hydroxyethyl） cyanuric acid （THEIC） as an initiator and self-made double metal cyanide complex（DMC） as a catalyst. A comprehensive study was performed with the focus on the poly- merization temperature and the mass fraction of catalyst on the polymerization reaction. The results show that when the temperature is 135 ~C and the mass fraction of catalyst is 440）〈 10-~ , the catalyst ef- ficiency and yield are the highest, the reaction time is shortened so as to improve the efficiency of pro- duction. Compared with the OI test of the isocyanurate-phthalate polyether ester polyol based foams and polypropylene oxide polyol based foams, it is proved that isocyanuric acid-phthalic anhydride polyether ester polyols can improve the flame retardant of polyurethane foams.
出处
《上海塑料》
2013年第1期19-22,共4页
Shanghai Plastics
