CAJ | 학술논문

以聚偏氟乙烯(PVDF)/聚氯乙烯(PVC)共混膜为对象，基于“荷叶效应”原理，用KOH的乙醇溶液对PVDF/PVC共混膜进行亲水改性，然后化学浴沉积烷基氯硅烷，在膜表面构造微纳米结构，制得具有超疏水能力的PVDF/PVC共混膜。采用傅里叶红外光谱、扫描电子显微镜、X光电子能谱和接触角测量对PVDF/PVC共混膜的微观结构和性能进行了表征。结果表明，亲水改性提升了PVDF/PVC共混膜表面烷基氯硅烷的化学浴沉积效果；亲水改性的最佳工艺条件为：KOH的浓度为5%、反应时间为9 min、反应温度为45℃；化学浴沉积后的PVDF/PVC共混膜接触角可达153°，滚动角小于1°，具有良好的防污自洁性能。
이취편불을희(PVDF)/취록을희(PVC)공혼막위대상，기우“하협효응”원리，용KOH적을순용액대PVDF/PVC공혼막진행친수개성，연후화학욕침적완기록규완，재막표면구조미납미결구，제득구유초소수능력적PVDF/PVC공혼막。채용부리협홍외광보、소묘전자현미경、X광전자능보화접촉각측량대PVDF/PVC공혼막적미관결구화성능진행료표정。결과표명，친수개성제승료PVDF/PVC공혼막표면완기록규완적화학욕침적효과；친수개성적최가공예조건위：KOH적농도위5%、반응시간위9 min、반응온도위45℃；화학욕침적후적PVDF/PVC공혼막접촉각가체153°，곤동각소우1°，구유량호적방오자길성능。
Micro-nano rough structure was constructed on polyvinylidene difluoride(PVDF)/polyvinyl chloride(PVC) blend membrane by hydrophilic modification with KOH/alcohol solution and chemical deposition with alkylchlorosilane,which was based on the mechanism of“lotus effect”.The PVDF/PVC blend membrane with super hydrophobic ability was prepared. The microstructure and properties of PVDF/PVC blend membrane were characterized by means of Fourier transform infrared spectroscope,scanning electron microscopy,X-ray photoelectron spectroscopy and water contact angle measurements.The results show that the method of hydrophilic modification can improve the chemical deposition quality of alkylchlorosilane on the surface of PVDF/PVC blend membrane.The optimum conditions for hydrophilic modification are:5 percent KOH,time of 9 min and temperature of 45℃.The contact angle and sliding angle on PVDF/PVC blend membrane surface deposited with alkylchlorosilane are 153° and less than 1°,respectively.Self-cleaning test shows that PVDF/PVC blend membrane has excellent self-cleaning property.