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氧化锌、二氧化硅和二氧化钛对静电纺丝法制备的聚乳酸纤维老化过程的影响。

Influence of ZnO, SiO and TiO on the aging process of PLA fibers produced by electrospinning method.

作者信息

Kosowska Karolina, Szatkowski Piotr

机构信息

Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland.

出版信息

J Therm Anal Calorim. 2020;140(4):1769-1778. doi: 10.1007/s10973-019-08890-6. Epub 2019 Nov 2.

DOI:10.1007/s10973-019-08890-6
PMID:32435152
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7223675/
Abstract

The aim of this work was to study the effect of ceramics particles addition (SiO, ZnO, TiO) on the ultraviolet (UV) aging of poly(lactic acid) nonwovens fabricated using electrospinning method. The resistance to aging is a key factor for outdoor and medical applications (UV light sterilization). Nonwovens were placed in special chamber with UV light. Changes of physicochemical properties were recorded using differential scanning calorimetry and attenuated total reflection Fourier-transform infrared spectroscopy. The fibers' morphology was studied by using scanning electron microscopy. Obtained results clearly showed that only PLA fibers with ZnO particles gained an increase in UV resistance. The paper presents a description of structural changes taking place under the influence of UV aging processes and describes the mechanisms of this process and the effect of ceramic addition on the lifetime of such materials.

摘要

这项工作的目的是研究添加陶瓷颗粒（SiO、ZnO、TiO）对采用静电纺丝法制备的聚乳酸非织造布紫外线（UV）老化的影响。耐老化性是户外和医疗应用（紫外线杀菌）的关键因素。将非织造布置于有紫外线的特殊腔室中。使用差示扫描量热法和衰减全反射傅里叶变换红外光谱法记录物理化学性质的变化。通过扫描电子显微镜研究纤维形态。所得结果清楚地表明，只有添加ZnO颗粒的聚乳酸纤维的抗紫外线能力有所提高。本文描述了在紫外线老化过程影响下发生的结构变化，并阐述了该过程的机制以及陶瓷添加对这类材料寿命的影响。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1880/7223675/4fa69b048efb/10973_2019_8890_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1880/7223675/bd6732e6b087/10973_2019_8890_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1880/7223675/e0384b5322f3/10973_2019_8890_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1880/7223675/ef756c42266b/10973_2019_8890_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1880/7223675/2f6ca46a3369/10973_2019_8890_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1880/7223675/281c4f8dfa92/10973_2019_8890_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1880/7223675/a1eced8ac322/10973_2019_8890_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1880/7223675/4fa69b048efb/10973_2019_8890_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1880/7223675/bd6732e6b087/10973_2019_8890_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1880/7223675/e0384b5322f3/10973_2019_8890_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1880/7223675/ef756c42266b/10973_2019_8890_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1880/7223675/2f6ca46a3369/10973_2019_8890_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1880/7223675/281c4f8dfa92/10973_2019_8890_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1880/7223675/a1eced8ac322/10973_2019_8890_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1880/7223675/4fa69b048efb/10973_2019_8890_Fig7_HTML.jpg

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