Zhou Jialiang, Fei Xiang, Li Congqi, Yu Senlong, Hu Zexu, Xiang Hengxue, Sun Bin, Zhu Meifang
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
Polymers (Basel). 2019 Jan 10;11(1):113. doi: 10.3390/polym11010113.
The approach of in situ polymerization modification has proven to be an effective route for introducing functions for polyester materials. In this work, Cu₂O@ZrP nanosheets with excellent dispersity and high antibacterial activity were integrated into in situ polymerized polyethylene terephthalate (PET) fibers, revealing an enhanced mechanical performance in comparison with the PET fibers fabricated directly via a traditional melt blending method. Additionally, such an in situ polymerized PET/Cu₂O@ZrP fibers displayed highly enhanced mechanical properties; and great antibacterial activities against multi-types of bacterium, including , and . For the as-obtained two types of PET/Cu₂O@ZrP fibers, we have detailed their molecular weight (detailed molecular weight) and dispersibility of nano-Cu₂O@ZrP and fibers crystallinity was investigated by Gel chromatography (GPC), Scanning electron microscope (SEM), and X-ray diffractometer (XRD), respectively. The results showed that the aggregation of the nano-Cu₂O@ZrP in the resultant PET matrix could be effectively prevented during its in situ polymerization process, hence we attribute its highly enhanced mechanical properties to its superior dispersion of nano-Cu₂O@ZrP.
原位聚合改性方法已被证明是一种为聚酯材料引入功能的有效途径。在这项工作中，具有优异分散性和高抗菌活性的Cu₂O@ZrP纳米片被整合到原位聚合的聚对苯二甲酸乙二酯（PET）纤维中，与通过传统熔融共混法直接制备的PET纤维相比，其机械性能得到了增强。此外，这种原位聚合的PET/Cu₂O@ZrP纤维表现出高度增强的机械性能，以及对多种细菌（包括 、 和 ）的强大抗菌活性。对于所获得的两种类型的PET/Cu₂O@ZrP纤维，我们分别通过凝胶渗透色谱法（GPC）、扫描电子显微镜（SEM）和X射线衍射仪（XRD）详细研究了它们的分子量（详细分子量）、纳米Cu₂O@ZrP的分散性以及纤维的结晶度。结果表明，在原位聚合过程中，纳米Cu₂O@ZrP在所得PET基体中的聚集可以得到有效防止，因此我们将其高度增强的机械性能归因于纳米Cu₂O@ZrP的优异分散性。
