为提高超疏水棉织物的使用寿命,以聚二甲基硅氧烷(PDMS)和硬脂酸为原料,棉布为基体材料,采用浸涂法制备出具有自修复功能的耐磨损超疏水棉织物。考察了该棉织物的耐磨损性能,并研究了超疏水溶液浸涂次数、修复时间及修复温度等因素对其自修复性能的影响。结果表明:超疏水棉织物具有良好的耐磨损性能,浸涂次数较多的棉织物具有较好的耐磨损性能。此外,超疏水棉织物还具备良好的自修复性能,浸涂3次超疏水溶液的棉织物接触角仅需12h即可恢复至153.6°;且随修复温度的升高,修复速度显著加快。
To improve the service life of superhydrophobic cotton fabric,applying PDMS and stearic acid as the raw materials and cotton cloth as the matrix material,an abrasion resistant superhydrophobic cotton fabric with self-healing function was prepared by dip-coating.Its abrasion resistance was investigated.The Influences of the coating times of superhydrophobic solution,healing time and healing temperature on the self-healing property of the superhydrophobic cotton fabric were studied.The experimental results showed that the superhydrophobic cotton fabric had good abrasion resistance,and the fabric with more dip-coating times presented better abrasion resistance.Meanwhile,it also possessed good self-healing property,and the contact angle of the cotton fabric dipped with superhydrophobic solution for 3 times could recover to 153.6° in only 12h.Moreover,the healing speed was accelerated with the increase of healing temperature.
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基金资助
中国纺织工业联合会科技指导项目(2020022)
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