【摘要】 探讨聚二甲基硅氧烷（PDMS）与纳米SiO₂联合整理棉织物的可行性及应用效果。制备SiO₂/PDMS涂层溶液，将棉织物浸入其中制备SiO₂/PDMS@棉织物，观察不同质量分数SiO₂整理所得织物的微观形貌，测试织物的耐酸碱性、耐摩擦性、自清洁性和油水分离性。试验表明：PDMS与纳米SiO₂联合整理棉织物的水接触角能达到165.3°±3.7°；SiO₂的理想质量分数为5%；整理所得超疏水棉织物具有很好的化学稳定性和机械稳定性，在极端条件下对水能展现出稳定的超疏水能力，对油水混合物的分离效率保持在99.0%以上，且自清洁性能良好。认为：SiO₂/PDMS涂层赋予了棉织物优异的超疏水性。更多还原

【Abstract】 The feasibility and application effect of polydimethylsiloxane（PDMS） and nano-SiO₂ in combined finishing on cotton fabrics were discussed.SiO₂/PDMS coating solution was prepared.Cotton fabric was immersed in it to prepare the SiO₂/PDMS@cotton fabric. The microscopic morphology of fabrics treated by different mass fractions of SiO₂ was observed.The acid and alkali resistance,friction resistance,self-cleaning property and oil-water separation of the fabrics were tested.The tests demonstrated that the water contact angle of cotton fabric finished by PDMS together with SiO₂ could be reached 165.3° ±3.7°. The ideal mass fraction of SiO₂ was 5%. The finished superhydrophobic cotton fabric possessed excellent chemical and mechanical stability,which could show stable superhydrophobicity under extreme conditions.The separation efficiency for water-oil mixture was above 99.0%,the self-cleaning property was better. It is considered that the SiO₂/PDMS coating gives cotton fabric excellent superhydrophobicity.更多还原