One Surface Treatment, Multiple Possibilities: Broadening the Use-Potential of Para-Aramid Fibers with Mechanical Adhesion

Sarianna Palola (Corresponding Author), Farzin Javanshour, Shadi Kolahgar Azari, Vasileios Koutsos, Essi Linnea Sarlin

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

Aramid fibers are high‐strength and high‐modulus technical fibers used in protective clothing, such as bulletproof vests and helmets, as well as in industrial applications, such as tires and brake pads. However, their full potential is not currently utilized due to adhesion problems to matrix materials. In this paper, we study how the introduction of mechanical adhesion between aramid fibers and matrix material the affects adhesion properties of the fiber in both thermoplastic and thermoset matrix. A microwave‐induced surface modification method is used to create nanostructures to the fiber surface and a high throughput microbond method is used to determine changes in interfacial shear strength with an epoxy (EP) and a polypropylene (PP) matrix. Additionally, Fourier transform infrared spectroscopy, atomic force microscopy, and scanning electron microscopy were used to evaluate the surface morphology of the fibers and differences in failure mechanism at the fiber‐matrix interface. We were able to increase interfacial shear strength (IFSS) by 82 and 358%, in EP and PP matrix, respectively, due to increased surface roughness and mechanical adhesion. Also, aging studies were conducted to confirm that no changes in the adhesion properties would occur over time.

Original languageEnglish
Article number3114
JournalPolymers
Volume13
Issue number18
DOIs
Publication statusPublished - 15 Sep 2021
MoE publication typeA1 Journal article-refereed

Keywords

  • Adhesion
  • Aramid fibers
  • Interfacial shear strength
  • Interphase
  • Surface modification

Fingerprint

Dive into the research topics of 'One Surface Treatment, Multiple Possibilities: Broadening the Use-Potential of Para-Aramid Fibers with Mechanical Adhesion'. Together they form a unique fingerprint.

Cite this