低泡沫FMEE在涤纶低聚物去除中的应用《纺织科技进展》2022年第8期

低泡沫TEXZO-FMEE在涤纶低聚物去除中的应用 发表于《纺织科技进展》2022年第8期

唐安喜

上海喜赫精细化工有限公司，上海，201620

摘要：脂肪酸甲酯乙氧基化反应中引入环氧丙烷基团，得到PO封端的TEXZO-FMEE，产物泡沫低，可以避免泡沫浮选低聚物在设备表面形成聚集，并具有酯基和甲基两种亲油性基团，可同步吸附于低聚物表面，将低聚物更稳定的分散于工作液中。以PO封端TEXZO-FMEE、乙二醇叔丁醚、无磷TEXZO-EDDHA-Na三种原料按照3:1:1复配低聚物去除剂，对工作液中的低聚物有很好的捕捉效果，可减少工作液喷射滤过织物后出现的条状低聚物痕迹，并在降温排液过程中有效防止低聚物反沾设备与纤维。

关键词：低聚物；PO封端；低泡沫；分散；反沾

Application of low-foaming FMEE in removing oligomers from polyester fiber

TANG An-xi

（Shanghai Xihe Fine Chemical Co.,Ltd, Shanghai 201620,China）

Abstract：Hexadecane fatty acid was polymerized with ethylene oxide and propylene oxide which has a low-foaming ability, It can prevent the deposition of polyester oligomers on the surface of the equipment in the process of foam floatation, The FMEE capped with PO has the lipophilic groups of ester and methyl, it can be adsorbed on the surface of the polyester oligomers synchronously and disperse the polyester oligomers in the working liquid more stably. The PO-capped FMEE, the ethylene glycol tert-butyl ether and the ethy diaminedhephen acetic sodium were used as the oligomers inhibitor according to the ratio of 3:1:1, the oligomers inhibitor can reduce the bar-shaped oligomer traces in the dyeing-process ,It can effectively prevent the oligomers staining the surface of equipment and the fiber during the dropping and discharging process

Key words：oligomers；end-capping with PO；low-foaming ability；dispersent；back-staining