Lin Xinghuan, Li Shanshan, Jung Joonhoo, Ma Wei, Li Lin, Ren Xuehong, Sun Yuyu, Huang Tung-Shi
Key Laboratory of Eco-textiles of Ministry of Education, College of Textiles and Clothing, Jiangnan University Wuxi Jiangsu 214122 China.
Department of Chemistry, University of Massachusetts Lowell Lowell 01854 USA.
RSC Adv. 2019 Jul 25;9(40):23071-23080. doi: 10.1039/c9ra04465e. eCollection 2019 Jul 23.
In order to prepare multifunctional fibrous membranes with hydrophobicity, antibacterial properties and UV resistance, we used silica and titanium dioxide for preparing SiO@TiO nanoparticles (SiO@TiO NPs) to create roughness on the fibrous membranes surfaces. The introduction of TiO was used for improving UV resistance. N-Halamine precursor and silane precursor were introduced to modify SiO@TiO NPs to synthesize SiO@TiO-based core@shell composite nanoparticles. The hydrophobic antibacterial fibrous membranes were prepared by a dip-pad process of electrospun biodegradable polyhydroxybutyrate/poly-ε-caprolactone (PHB/PCL) with the synthesized SiO@TiO-based core@shell composite nanoparticles. TEM, SEM and FT-IR were used to characterize the synthesized SiO@TiO-based core@shell composite nanoparticles and the hydrophobic antibacterial fibrous membranes. The fibrous membranes not only showed excellent hydrophobicity with an average water contact angle of 144° ± 1°, but also appreciable air permeability. The chlorinated fibrous membranes could inactivate all and O157:H7 after 5 min and 60 min of contact, respectively. In addition, the chlorinated fibrous membranes exhibited outstanding cell compatibility with 102.1% of cell viability. Therefore, the prepared hydrophobic antibacterial degradable fibrous membranes may have great potential application for packaging materials.
为了制备具有疏水性、抗菌性能和抗紫外线性能的多功能纤维膜，我们使用二氧化硅和二氧化钛制备SiO@TiO纳米颗粒（SiO@TiO NPs），以在纤维膜表面产生粗糙度。引入TiO用于提高抗紫外线性能。引入N-卤胺前体和硅烷前体对SiO@TiO NPs进行改性，以合成SiO@TiO基核壳复合纳米颗粒。通过将电纺可生物降解聚羟基丁酸酯/聚ε-己内酯（PHB/PCL）与合成的SiO@TiO基核壳复合纳米颗粒进行浸轧工艺制备疏水性抗菌纤维膜。使用透射电子显微镜（TEM）、扫描电子显微镜（SEM）和傅里叶变换红外光谱（FT-IR）对合成的SiO@TiO基核壳复合纳米颗粒和疏水性抗菌纤维膜进行表征。纤维膜不仅表现出优异的疏水性，平均水接触角为144°±1°，而且具有可观的透气性。氯化纤维膜分别在接触5分钟和60分钟后可使所有大肠杆菌和O157:H7失活。此外，氯化纤维膜表现出出色的细胞相容性，细胞活力为102.1%。因此，制备的疏水性抗菌可降解纤维膜在包装材料方面可能具有巨大的潜在应用价值。
