CAJ | 학술논문

以正硅酸乙酯为前驱体，采用溶胶-凝胶法在纳米 TiO2表面包覆SiO 2壳层，制备TiO2/SiO2核壳结构复合微粒，并将其负载在涤纶织物上，然后对织物进行疏水化处理，得到具有超疏水和防紫外线双重功能的织物。采用透射电子显微镜对复合微粒进行了表征；采用扫描电子显微镜对涤纶及处理后的涤纶织物的表面形貌进行了观察；采用视频光学接触角测量仪对涤纶织物表面的润湿性能进行测试；对织物超疏水性能的稳定性以及织物的紫外线防护性能进行了研究。结果表明：TiO2/SiO2复合微粒在纤维表面的负载不仅极大地提高了纤维表面的粗糙性，有利于超疏水表面的形成，并且由于 TiO2的引入使织物获得了良好的紫外线防护性能；SiO2壳层对TiO2的包覆降低了TiO2的光催化作用，从而有效地提高了超疏水表面的紫外光照射稳定性。
이정규산을지위전구체，채용용효-응효법재납미 TiO2표면포복SiO 2각층，제비TiO2/SiO2핵각결구복합미립，병장기부재재조륜직물상，연후대직물진행소수화처리，득도구유초소수화방자외선쌍중공능적직물。채용투사전자현미경대복합미립진행료표정；채용소묘전자현미경대조륜급처리후적조륜직물적표면형모진행료관찰；채용시빈광학접촉각측량의대조륜직물표면적윤습성능진행측시；대직물초소수성능적은정성이급직물적자외선방호성능진행료연구。결과표명：TiO2/SiO2복합미립재섬유표면적부재불부겁대지제고료섬유표면적조조성，유리우초소수표면적형성，병차유우 TiO2적인입사직물획득료량호적자외선방호성능；SiO2각층대TiO2적포복강저료TiO2적광최화작용，종이유효지제고료초소수표면적자외광조사은정성。
TiO2 particles were coated with SiO2 using tetraethyl orthosilicate as precursor by Sol-Gel to form TiO 2/SiO2 core-shell particles .The as-obtained composite particles were loaded on the surface of poly(ethylene terephthalate) (PET ) textiles via a process of dip-pad-dry ,followed by hydrophobization to fabricate superhydrophobic textiles with UV-shielding property .The morphologies of the composite particles were characterized by transmission e-lectron microscopy .The morphologies of PET textiles were observed by using scanning elec-tron microscope ,and the surface wetting property of PET textiles was measured by video optical contact angle system .The stability of the superhydrophobicity and the UV property of the textiless were also investigated .The results showed that loading of composite particles roughened the fibers to favour the realization of superhydrophobicity ,and improved the UV-shielding property of the textiles due to the incorporation of TiO 2 .And importantly , the coating of SiO2 on TiO2 lowered the photoactivity of TiO2 ,thus improved the UV durability of the superhydrophobicity on the textiles .