Effect of Core–Shell Rubber Nanoparticles on the Mechanical Properties of Epoxy and Epoxy-Based CFRP

Tatjana Glaskova-Kuzmina (Corresponding Author), Leons Stankevics, Sergejs Tarasovs, Jevgenijs Sevcenko, Vladimir Špaček, Anatolijs Sarakovskis, Aleksejs Zolotarjovs, Krishjanis Shmits, Andrey Aniskevich

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

The aim of the research was to estimate the effect of core–shell rubber (CSR) nanoparticles on the tensile properties, fracture toughness, and glass transition temperature of the epoxy and epoxy-based carbon fiber reinforced polymer (CFRP). Three additives containing CSR nanoparticles were used for the research resulting in a filler fraction of 2–6 wt.% in the epoxy resin. It was experimentally confirmed that the effect of the CSR nanoparticles on the tensile properties of the epoxy resin was notable, leading to a reduction of 10–20% in the tensile strength and elastic modulus and an increase of 60–108% in the fracture toughness for the highest filler fraction. The interlaminar fracture toughness of CFRP was maximally improved by 53% for ACE MX 960 at CSR content 4 wt.%. The glass transition temperature of the epoxy was gradually improved by 10–20 °C with the increase of CSR nanoparticles for all of the additives. A combination of rigid and soft particles could simultaneously enhance both the tensile properties and the fracture toughness, which cannot be achieved by the single-phase particles independently.

Original languageEnglish
Article number7502
JournalMaterials
Volume15
Issue number21
DOIs
Publication statusPublished - Nov 2022
Externally publishedYes

Keywords*

  • CFRP
  • core–shell rubber nanoparticles
  • epoxy
  • fracture toughness
  • glass transition temperature
  • tensile properties

Field of Science*

  • 2.5 Materials engineering
  • 1.3 Physical sciences

Publication Type*

  • 1.1. Scientific article indexed in Web of Science and/or Scopus database

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