【摘要】 将聚乙烯基倍半硅氧烷纳米球(PVSQ)与聚甲基(3,3,3-三氟丙基)/甲基含氢硅氧烷(PFHMS)进行硅氢化加成反应,制得一种聚倍半硅氧烷纳米杂化氟硅聚合物(PFMS-PSQ),再经喷涂法处理山羊皮革,制得了兼具耐摩擦性和"呼吸"性的超疏水皮革。用红外光谱对产物结构进行表征,用接触角测量仪、摩擦色牢度仪、水蒸气透过率测试仪和场发射扫描电镜(FESEM)对处理后皮革表面的应用性能和微观形貌进行研究。结果发现,PFMS-PSQ具有预期结构;当PVSQ的平均粒径为119 nm,PFMS-PSQ溶液质量浓度为0.7 wt%,烘干温度为80℃,喷涂后皮革表面的疏水性最佳,水静态接触角达160.4°,干擦25次后水静态接触角仅下降4.1°,水蒸气透过率达3082.17 g/(m~2·day);FESEM证实皮革表面形成的一层聚合物疏水膜和大量仿荷叶纳米凸起是超疏水表面构筑的内因。更多还原

【Abstract】 A fluorosilicone/polysilsesquioxane nanohybrid(PFMS-PSQ) was prepared by hydrosilylation of polytrifluoropropylhydromethylsiloxane(PFHMS) and polyvinylsilsesquioxane(PVSQ), then it was used to treat the goat crust leather via spraying method to fabricate the superhydrophobic leather with rub resistance and breathable property. Infrared spectrum(IR) was utilized to characterize the resultant. Contact angle measurement, friction fastness instrument, water vapor transmittance tester and field emission scanning electron microscopy(FESEM) were applied to investigate performance properties and surface micro-morphology of the resulted leather. Results indicated that the PFMS-PSQ had the due structure. Hydrophobicity of the treated leather was optimal with static water contact angle of 160.4° while the average particle size of PVSQ, mass concentration of the PFMS-PSQ solution andthe drying temperature were used as 119 nm, 0.7 wt% and 80℃, respectively. The static contact angle was reduced by 4.1° after 25 dry rub and water vapor transmittance rate could still attain 3082.17g/(m2·day). FESEM observation confirmed that construction of superhydrophobic leather surface was mainly rooted from a hydrophobic polymeric film and many lotus-like nano protuberances.更多还原