棕榈油改性含氟拒水剂的合成及其拒水性能

Preparation of fluorine containing water repellent modified with palm oil and its water repellency

以棕榈油和2,2,2-三氟乙醇为原料,合成了棕榈油改性含氟拒水剂-高级脂肪酸三氟乙酯;采用傅里叶变换红外光谱,对合成物质的结构进行了表征;测定了该拒水剂整理棉织物的接触角、水滴消失时间、白度以及断裂强力等指标;确定了棉织物的最佳整理工艺条件:以乙醚为溶剂,棕榈油改性含氟拒水试剂用量40 g/L,二浸二轧,100℃预烘40 min,170℃焙烘3 min。结果表明,经过该棕榈油改性含氟拒水剂整理后,棉织物具有良好的拒水性能和透气性能,白度和断裂强力稍有下降。

A palm oil-modified fluorine-containing water repellent agent, higher fatty acid trifluoroethyl ester, is prepared with palm oil and 2,2,2-trifluoro ethanol as raw materials, and then is applied to water repellent finish of cotton fabric. The structure of the agent is characterized by Fourier Transform Infrared Spectroscopy, and the contact angle, time of waterdrop disappearance, whiteness and breaking strength of the treated fabric are also measured. The optimum process are defined as follows： water repellent agent 40 g/L with ether as a solvent, double-dip-double-nip, predrying at 100℃ for 40 min, and curing at 170 ℃ for 3 min. The adhesion status of the water repellent agent on the fabric is observed by SEM , and the permeability of the treated fabric is also tested. The results show that the finished fabric has favorable water repellency and permeability with a slight decrease in whiteness and breaking strength.