Fracture toughness of the nano-particle reinforced epoxy composite
Source abstract
Abstract
Abstract Although thermoset polymers have been widely used for engineering components, adhesives and matrix for fiber-reinforced composites due to their good mechanical properties compared to those of thermoplastic polymers, they are usually brittle and vulnerable to crack. Therefore, ductile materials such as micro-sized rubber or nylon particles are added to thermoset polymers are used to increase their fracture toughness, which might decrease their strength if micro-sized particles act like defects. In this work, in order to improve the fracture toughness of epoxy adhesive, nano-particle additives such as carbon black and nanoclay were mixed with epoxy resin. The fracture toughness was measured using the single edge notched bend specimen at the room (25 °C) and cryogenic temperature (−150 °C). From the experimental results, it was found that reinforcement with nano-particles improved the fracture toughness at the room temperature, but decreased the fracture toughness at the cryogenic temperature in spite of their toughening effect.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Polymer Nanocomposites and Properties · Tribology and Wear Analysis · Polymer crystallization and properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (22)
Show source-provided references
1. Ajayan · 2003
2. Development of a dispersion process for carbon nanotubes in an epoxy matrix and the resulting electrical properties10.1016/S0032-3861(99)00166-4 ↗
3. Formation of percolating networks in multi-wall carbon nanotube-epoxy composites10.1016/j.compscitech.2004.01.025 ↗
4. Carbon nanotube-reinforced epoxy-composites: enhanced stiffness and fracture toughness at low nanotube content10.1016/j.compscitech.2004.04.002 ↗
5. Influence of different carbon nanotubes on the mechanical properties of epoxy matrix composites – a comparative study10.1016/j.compscitech.2005.04.021 ↗
6. Synthesis of nylon 6-clay hybrid10.1557/JMR.1993.1179 ↗
7. Fracture toughness and water uptake of high-performance epoxy/nanoclay nanocomposites10.1016/j.compscitech.2005.06.007 ↗
8. Preparation, morphology and thermal/mechanical properties of epoxy/nanoclay composite10.1016/j.compositesa.2005.12.020 ↗
9. Investigation of the mechanical properties of DGEBA-based epoxy resin with nanoclay additives10.1016/j.compstruct.2006.04.032 ↗
10. Mechanical properties of epoxy-based composites using nanoclays10.1016/j.compstruct.2006.04.051 ↗
11. Donnet · 1993
12. Hybrid electro-conductive composites with improved toughness filled by carbon black10.1016/j.carbon.2004.11.019 ↗
13. Molecular design of an epoxy for cryogenic temperatures10.1016/0011-2275(95)90910-8 ↗
14. Application of the positron annihilation method for evaluation of organic materials for cryogenic use10.1016/0011-2275(95)90913-Z ↗
15. Cryogenic properties of SiO2/epoxy nanocomposites10.1016/j.cryogenics.2005.03.003 ↗
16. Modal analysis on nanoclay epoxy-based fiber-glass laminates10.1016/j.compstruct.2007.05.003 ↗
17. Processing of nanoclay filled sandwich composites and their response to low velocity impact loading10.1016/j.compstruct.2006.12.009 ↗
18. Gojny · Compos Sci Technol · 2005 · 65 · 230010.1016/j.compscitech.2005.04.021 ↗
19. Processing of expanded graphite reinforced polymer nanocomposites10.1016/j.compscitech.2005.10.014 ↗
20. ASTM D5045-99. Standard test methods for plane-strain fracture toughness and strain energy release rate of plastic materials. American Society for Testing and Materials (ASTM); 2007.
21. Anderson · 1995
22. Application of the positron annihilation method for evaluation of organic materials for cryogenic use10.1016/0011-2275(95)90913-Z ↗