高速纺丝油剂用丁醇聚醚链末端基的稳定性  

Stability of terminal group of butanol polyether chain used as high-speed spinning finishes

作　　者：方婷婷[1] 周凯[1] 尹红[1] 陈志荣[1] 袁慎峰[1] 

机构地区：[1]浙江大学化学工程与生物工程学院,浙江杭州310027

出　　处：《纺织学报》2015年第11期72-75,81,共5页Journal of Textile Research

基　　金：浙江省公益性技术应用研究计划(2013C31091)

摘　　要：高速纺丝油剂所用的丁醇聚醚链末端羟基在碱性及高温等条件下易发生脱水反应,影响丁醇聚醚的结构和高速纺丝油剂的使用性能,为此研究了丁醇聚醚生产、储运及使用条件对丁醇聚醚链末端基稳定性的影响。结果表明：氧气会加剧丁醇聚醚链末端基的不稳定性,有氧加速试验中丁醇聚醚双键含量增加幅度为0.008 5%~0.049 2%（即原料双键含量的1.0~5.4倍）,明显大于氮气加速实验中双键含量的增加幅度。温度对丁醇聚醚链末端基稳定性影响显著,高温实验中丁醇聚醚双键含量增加幅度为0.074 4%~0.129 8%（即原料双键含量的8.1~14.1倍）。丁醇聚醚中含有的醛在碱性环境中会发生羟醛缩合反应生成烯醛,碱性实验中丁醇聚醚双键含量最大增加幅度为0.011 4%~0.025 5%（即原料双键含量的1.2~2.8倍）。The end hydroxyl group of butanol polyether is easy to be dehydrated under conditions of alkalinity and high temperature when used as high-speed spinning finishes,which change the polyether＇s structure and high-speed spinning finishes＇ performances. This paper investigated terminal group＇ s stability of butanol polyether during processes of production,transportation,storage and usage. Results show that the end hydroxyl group of butanol polyether tends to be more unstable in oxygen gas. The increase range of double bond content in oxygen gas is 0. 008 5%-0. 049 2%（ 1. 0-5. 4 times higher than that of the original polyether）,which is obviously larger than that in nitrogen gas. The polyether appears more unstable at high temperatures. The double bond content increases considerably with the growth in high temperatures showing 8. 1-14. 1 times higher than that of the original butanol polyether.The increase range of double bond content is 0. 074 4%-0. 129 8%. Olefin aldehyde is introduced by the Aldol condensation reaction in alklinities and the maximum increase of double bond content is 1. 2-2. 8 times higher than that the original polyether. The increase range of double bond content is（ 0. 011 4%-0. 025 5%）.

关 键 词：稳定性 双键 链末端基 高速纺丝助剂 丁醇聚醚 

分 类 号：TQ340.472.2[化学工程—化纤工业]