Next Article in Journal
Hyperelastic Properties of Platinum Cured Silicones and its Applications in Active Compression
Next Article in Special Issue
Fabrication of PCL Scaffolds by Supercritical CO2 Foaming Based on the Combined Effects of Rheological and Crystallization Properties
Previous Article in Journal
Comprehensive Analysis of Mechanical Properties of CB/SiO2/PVDF Composites
Previous Article in Special Issue
Improving the Continuous Microcellular Extrusion Foaming Ability with Supercritical CO2 of Thermoplastic Polyether Ester Elastomer through In-Situ Fibrillation of Polytetrafluoroethylene
 
Search for Articles:
Title / Keyword
Author / Affiliation
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
Journals
Polymers
Volume 12
Issue 1
10.3390/polym12010147
polymers-logo
Submit to this Journal Review for this Journal Edit a Special Issue
► Article Menu

Article Menu

share announcement question_answer thumb_up
...
textsms
...
Article

Improving UV Resistance of Aramid Fibers by Simultaneously Synthesizing TiO2 on Their Surfaces and in the Interfaces Between Fibrils/Microfibrils Using Supercritical Carbon Dioxide

by
Hui Sun
1,
Haijuan Kong
1,2,*,
Haiquan Ding
1,
Qian Xu
1,
Juan Zeng
1,
Feiyan Jiang
1,
Muhuo Yu
3 and
Youfeng Zhang
1,2
1
School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201600, China
2
Shanghai Collaborative Innovation Center of Laser Advanced Manufacturing Technology, Shanghai 201600, China
3
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University, Shanghai 200051, China
*
Author to whom correspondence should be addressed.
Polymers 2020, 12(1), 147; https://doi.org/10.3390/polym12010147
Received: 25 November 2019 / Revised: 3 January 2020 / Accepted: 3 January 2020 / Published: 7 January 2020
(This article belongs to the Special Issue Supercritical Fluids Technology for Polymer Applications)
View Full-Text Download PDF
Browse Figures

Abstract

Aramid fibers with low density and high strength, modulus, and thermal resistance are widely used in applications such as bulletproof vests and cables. However, owing to their chemical structure, they are sensitive to ultraviolet light, which degrades the fibers’ useful mechanical properties. In this study, titanium dioxide (TiO2) nanoparticles were synthesized both on the aramid III fiber surface and in the interfacial space between the fibrils/microfibrils in supercritical carbon dioxide (scCO2) to improve the UV resistance of aramid fibers. The effects of scCO2 treatment pressure on the TiO2 structure, morphology, surface composition, thermal stability, photostability, and mechanical properties were investigated using Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, thermogravimetric analysis, ultraviolet–visible spectroscopy, and single-fiber test. The results show that amorphous TiO2 formed on the fiber surface and the interface between fibrils/microfibrils, and decreased the photodegradation rate of the aramid III fiber. Moreover, this modification can also improve the tensile strength via treatment at low temperature and without the use of a solvent. The simple synthesis process in scCO2, which is scalable, is used for mild modifications with a green solvent, providing a promising technique for synthesizing metal dioxide on polymers. View Full-Text
Keywords: aramid III fiber; TiO2; supercritical carbon dioxide; UV Resistance aramid III fiber; TiO2; supercritical carbon dioxide; UV Resistance
►▼ Show Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
SciFeed

Share and Cite

MDPI and ACS Style

Sun, H.; Kong, H.; Ding, H.; Xu, Q.; Zeng, J.; Jiang, F.; Yu, M.; Zhang, Y. Improving UV Resistance of Aramid Fibers by Simultaneously Synthesizing TiO2 on Their Surfaces and in the Interfaces Between Fibrils/Microfibrils Using Supercritical Carbon Dioxide. Polymers 2020, 12, 147. https://doi.org/10.3390/polym12010147

AMA Style

Sun H, Kong H, Ding H, Xu Q, Zeng J, Jiang F, Yu M, Zhang Y. Improving UV Resistance of Aramid Fibers by Simultaneously Synthesizing TiO2 on Their Surfaces and in the Interfaces Between Fibrils/Microfibrils Using Supercritical Carbon Dioxide. Polymers. 2020; 12(1):147. https://doi.org/10.3390/polym12010147

Chicago/Turabian Style

Sun, Hui, Haijuan Kong, Haiquan Ding, Qian Xu, Juan Zeng, Feiyan Jiang, Muhuo Yu, and Youfeng Zhang. 2020. "Improving UV Resistance of Aramid Fibers by Simultaneously Synthesizing TiO2 on Their Surfaces and in the Interfaces Between Fibrils/Microfibrils Using Supercritical Carbon Dioxide" Polymers 12, no. 1: 147. https://doi.org/10.3390/polym12010147

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Metrics

Article Access Map by Country/Region

1
Back to TopTop