Improvement of the Mechanical Properties by Surface Modification of ZnCl2 and Polydopamine in Aramid Fiber Composites

Although aramid fiber has the advantage of excellent chemical and mechanical properties, the performance of the composites may be reduced due to the low interfacial adhesion between the fabric and the matrix. The surface of the aramid fiber was modified to improve the interfacial properties. The sur...

Full description

Saved in:
Bibliographic Details
Published in:Applied sciences 2022-03, Vol.12 (6), p.3119
Main Authors: Xu, Guangxian, Jin, Yinghai, Song, Junhee
Format: Article
Language:English
Subjects:
aramid fiber
Aramid fiber composites
Bend strength
Carbon
Composite materials
Dopamine
Epoxy resins
Ethanol
Fibers
Fourier transforms
Heat resistance
hybrid modification
Interfacial bonding
Interfacial properties
Mechanical properties
Plasma
polydopamine
Polymer matrix composites
Resin transfer molding
Shear strength
Surface treatment
Tensile strength
Textile composites
Zinc chloride
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Although aramid fiber has the advantage of excellent chemical and mechanical properties, the performance of the composites may be reduced due to the low interfacial adhesion between the fabric and the matrix. The surface of the aramid fiber was modified to improve the interfacial properties. The surface of the aramid fibers was treated with ZnCl2 and polydopamine. After the pretreated fabrics were made into a composite material by the vacuum-assisted resin transfer molding (VARTM) process, their mechanical performance was investigated. The highest impact energy was shown in the concentration of 6 wt% ZnCl2 and 1.5 g/L polydopamine, which is 20% better than that of the untreated material. In the bending strength, the condition of 1.5 g/L polydopamine resulted in the highest value and increased by 13% compared to the untreated material. The hybrid surface treatment of ZnCl2 and polydopamine did not significantly affect the tensile strength.
ISSN:2076-3417
2076-3417
DOI:10.3390/app12063119