English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Epoxy resins modified with low-viscosity hyperbranched epoxy were prepared. The tensile strength, flexural strength, impact strength, fracture toughness, glass transition temperature (Tg) of the cured samples were investigated. The results show that the addition of hyperbranched epoxy improves the overall mechanical and fracture performance because of the unique three-dimensional macromolecule structure. With the content of hyperbranched epoxy increases, the tensile strength, flexural strength, impact strength and fracture toughness all increases first and then decreases. This variation trend can be attributed to the reverse e ffect of crosslinking density and the rigidity of molecule chain of the hyperbranched epoxy. The Tg of the cured samples decreases in the whole range studied. The decrease of viscosity may be contributive to developing an easier fabrication process of the epoxy based materials.

Mechanical Properties and Fracture Toughness of Epoxy Resin Improved by Low-viscosity Hyperbranched Epoxy