التفاصيل البيبلوغرافية
| العنوان: |
Dynamic mechanical behaviors of epoxy resin/hollow polymeric microsphere composite foams under forced non-resonance and forced resonance. |
| المؤلفون: |
Rui Li, Guisen Fan, Xiao Ouyang, Guojun Wang, Hao Wei |
| المصدر: |
Composites & Advanced Materials; Jan-Dec2021, Vol. 30, p1-12, 12p |
| مصطلحات موضوعية: |
MECHANICAL behavior of materials, EPOXY resins, DAMPING (Mechanics), DYNAMIC mechanical analysis, MICROSPHERES |
| مستخلص: |
Composite foams with 10--50 vol% hollow polymeric microspheres were prepared using bisphenol A epoxy resin and polyetheramine curing agent as the matrix. The results demonstrated that the density, hardness, and static mechanical properties of the epoxy resin/hollow polymer microsphere composite foams, as well as their dynamic mechanical properties under forced non-resonance, were similar to those of polymer/hollow glass microsphere composite foams. At 25 °C and under 1--100 Hz forced resonance, the first-order and second-order resonance frequencies of the composite foams shifted to the low-frequency region as the volume fraction of hollow polymer microspheres increased. Meanwhile, the first-order and second-order loss factors of the as-prepared composite foams were improved by 41.7% and 103.3%, respectively, compared with the pure epoxy resin. Additionally, the first-order and second-order loss factors of the asprepared composite foams reached a maximum at 40 vol% and 30 vol% hollow polymer microspheres, respectively. This research helps us to expand the application range of composite foam materials in damping research. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
