Mechanical Properties and Fracture Toughness of Epoxy Resin Improved by Low-viscosity Hyperbranched Epoxy
- https://doi.org/10.2991/icadme-15.2015.308How to use a DOI?
- mechanical property, fracture toughness, epoxy, hyperbranched, low-viscosity
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 effect 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.
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Zhongwei Zhang AU - Xiaolong Wang AU - Xiaoguang Hu AU - Ting Xu AU - Yanyan Lin AU - Yefa Tan PY - 2015/10 DA - 2015/10 TI - Mechanical Properties and Fracture Toughness of Epoxy Resin Improved by Low-viscosity Hyperbranched Epoxy BT - Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering PB - Atlantis Press SP - 1662 EP - 1666 SN - 2352-5401 UR - https://doi.org/10.2991/icadme-15.2015.308 DO - https://doi.org/10.2991/icadme-15.2015.308 ID - Zhang2015/10 ER -