耐久阳离子聚酯聚醚亲水整理剂的合成及性能

Synthesis and properties of durable cationic polyester polyether hydrophilic finishing agent

采用对苯二甲酸二甲酯(DMT)、乙二醇(EG)、聚乙二醇(PEG)以及正丁基三羟乙基溴化铵(NTAB)为原料,通过酯交换反应与缩聚反应,成功制备了一系列具有不同结构的季铵化三乙醇胺聚酯聚醚(CPP)亲水整理剂。探究PEG相对分子质量、原料物质的量比等对涤纶织物亲水性、耐洗性和抗静电性能的影响,确定CPP亲水整理剂的优化合成工艺,并对比市售亲水整理剂的性能,对其应用潜力进行评估。研究表明,CPP整理剂的优化合成条件为:PEG相对分子质量为2000,DMT和PEG物质的量比为3∶1,PEG和NTAB物质的量比为1.0∶0.2;整理涤纶织物的润湿时间最低可达2.89 s,比原织物的润湿时间提升50%;30 min芯吸高度能达到17.3 cm,比原织物高出57%,静电压半衰期可达2.7 s;经过20次洗涤后,CPP整理涤纶织物的毛效保留率高达95%以上,综合性能优于常用市售亲水整理剂。

Using dimethyl terephthalate(DMT),ethylene glycol(EG),polyethylene glycol(PEG)and n-butyl trihy-droxyethyl ammonium bromide(NTAB)as raw materials,a series of quaternized triethanolamine polyester polyether(CPP)hydrophilic finishing agents with different structures were successfully prepared through transesterification and polyconden-sation reactions.The influence of PEG molecular weight and molar ratio on hydrophilicity,washable resistance and antistat-ic property of polyester fabric was investigated,and the optimal synthetic process for CPP hydrophilic finishing agent was determined.Their performance is compared with commercially available counterparts to assess their application potential.The results show that the optimal synthesis conditions of CPP finishing agent are as follows:PEG relative molecular mass 2000,the molar ratio of DMT to PEG 3:1,the molar ratio of PEG to NTAB 1.0:0.2.The wetting time of the finished poly-ester fabric can be reduced to as low as 2.89 s,which is 50%higher than that of the original fabric.The capillary rise height after 30 min can reach 17.3 cm,which is 57%higher than that of the original fabric.Additionally,the static voltage half-life up can reach 2.7 s.After washing 20 times,the capillary effect retention rate of CPP finished polyester fabric is over 95%,and its comprehensive performance was better than that of common hydrophilic finishing agents.