Thermal stability and dynamic mechanical behavior of functional multiphase boride ceramics/epoxy composites
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Yannan He
Abstract
The thermal and dynamic mechanical properties of epoxy composites filled with zirconium diboride/nano-alumina (ZrB2/Al2O3) multiphase particles were investigated by means of differential scanning calorimetry, dynamic thermo-mechanical analysis, and numerical simulation. ZrB2/Al2O3 particles were surface organic functional modified by γ-glycidoxypropyltrimethoxysilane for the improvement of their dispersity in epoxy matrix. The results indicated that the curing exotherm of epoxy resin decreased significantly due to the addition of ZrB2/Al2O3 multiphase particles. In comparison to the composites filled with unmodified particles, the modified multiphase particles made the corresponding filling composites exhibit lower curing reaction heat, lower loss modulus, and higher storage modulus. Generally speaking, the composites filled with 5 wt% modified multiphase particles presented the best thermal stability and thermo-mechanical properties due to the better filler-matrix interfacial compatibility and the uniform dispersity of modified particles. Finite element analysis also suggested that the introduction of modified ZrB2/Al2O3 multiphase particles increased the stiffness of the corresponding composites.
Funding source: National Natural Science Foundation of China
Award Identifier / Grant number: 51273044
Funding statement: This work was financially supported by the National Natural Science Foundation of China (grant no. 51273044, Funder Id: http://dx.doi.org/ 10.13039/501100001809).
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Articles in the same Issue
- Frontmatter
- Material properties
- Thermal stability of xanthan gum biopolymer and its application in salt-tolerant bentonite water-based mud
- Thermal stability and dynamic mechanical behavior of functional multiphase boride ceramics/epoxy composites
- Influence of radiation-crosslinking on the elongation behaviour of glass-fibre-filled sheets in the thermoforming process
- Physicochemical and biological investigation of oxygen plasma modified electrospun polyurethane scaffolds for connective tissue engineering application
- Role of polymer/polymer and polymer/drug specific interactions in drug delivery systems
- Preparation and assembly
- Development of antimicrobial and antifouling nanocomposite membranes by a phase inversion technique
- Preparation of nano-SiO2 compound antioxidant and its antioxidant effect on polyphenylene sulfide
- Influence of mixing energy on the solid-state behavior and clay fraction threshold of PA12/C30B® nanocomposites
- Engineering and processing
- Analysis of the formation of gap-based leakages in polymer-metal electronic systems with labyrinth seals
- Effect of gas on the polymer temperature in external gas-assisted injection molding
