Please wait.'

Page is loading'


Home  > Raw materials & technologies  > Technologies  > Improving fracture toughness and strength...

Sunday, 15 September 2019
pdf
Raw materials & technologies, Technologies

Improving fracture toughness and strength of epoxy using nanomaterials

Thursday, 25 June 2015

The incorporation of nanomaterials in the polymer matrix is considered to be a highly effective technique to improve the mechanical properties of resins.

The effects of the addition of different nanoparticles of the epoxy matrix have been reviewed. Source: Sergey Tokarev/Fotolia

The effects of the addition of different nanoparticles of the epoxy matrix have been reviewed. Source: Sergey Tokarev/Fotolia

In a paper researchers have reviewed the effects of the addition of different nanoparticles such as single-walled CNT (SWCNT), double-walled CNT (DWCNT), multi-walled CNT (MWCNT), graphene, nanoclay and nanosilica on fracture toughness, strength and stiffness of the epoxy matrix.

Results are presented in maps

The Young's modulus (E), ultimate tensile strength (UTS), mode I (GIC) and mode II (GIIC) fracture toughness of the various nanocomposites at different nanoparticle loadings are compared. The review shows that, depending on the type of nanoparticles, the integration of the nanoparticles has a substantial effect on mode I and mode II fracture toughness, strength and stiffness. The critical factors such as maintaining a homogeneous dispersion and good adhesion between the matrix and the nanoparticles are highlighted. The effect of surface functionalisation, its relevancy and toughening mechanism are also scrutinised and discussed. A large variety of data comprised of the mechanical properties of nanomaterial toughened composites reported to date has thus been compiled to facilitate the evolution of this emerging field, and the results are presented in maps showing the effect of nanoparticle loading on mode I fracture toughness, stiffness and strength.

The study is published in: Nanoscale, Issue 23, 2015.

top of page
Comments (0)
Add Comment

Post comment

You are not logged in

register