The effect of particle size and hydrate status on dynamic mechanical properties of hydrate‐bearing sediments

Energy Science & Engineering ◽

10.1002/ese3.1011 ◽

2021 ◽

Author(s):

Wei Hu ◽

Fulong Ning ◽

Zhichao Liu ◽

Dongdong Wang ◽

Xiaofeng Dou ◽

...

Keyword(s):

Mechanical Properties ◽

Particle Size ◽

Dynamic Mechanical Properties ◽

Dynamic Mechanical ◽

Effect Of Particle Size ◽

Hydrate Bearing Sediments

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Study on Physical and Dynamic Properties of BR Based Composites Filled with Different Particle Size of Magnesia

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.217-219.165 ◽

2012 ◽

Vol 217-219 ◽

pp. 165-173 ◽

Cited By ~ 1

Author(s):

Nai Xiu Ding ◽

Fu Lan Hao ◽

Lei Li ◽

Wen Sun ◽

Liang Liu

Keyword(s):

Mechanical Properties ◽

Particle Size ◽

Tensile Strength ◽

Physical Properties ◽

Dynamic Properties ◽

Dynamic Mechanical Properties ◽

Frequency Mode ◽

Particle Sizes ◽

Payne Effect ◽

Dynamic Mechanical

BR/MgO composites were prepared with seven kinds of particle sizes of MgO filled respectively. Effects of particle sizes on dynamic mechanical properties, vulcanization characteristics and physical properties of BR/MgO composites were studied. The results showed that the tensile strength of composites filled nanoscale of MgO was nine times of pure BR, and the vulcanization time was significantly shorter than that of composites filled with micron grade filler. The RPA experiments proved that the composites filled with MgO of 20nm and 50nm have greatly higher G＇, and that the G＇of the composites increase markedly while the value of tanδ decrease sharply with given temperature above 90 °C increasing. the higher value of tanδ at the frequency mode, and the obvious Payne effect compared with the composites filled micron grade of MgO

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Effect of Particle Sizes on Rate Sensitivity and Dynamic Mechanical Properties of Polypropylene/Silica (PP/Sio2) Nanocomposites

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.364.181 ◽

2011 ◽

Vol 364 ◽

pp. 181-185 ◽

Cited By ~ 2

Author(s):

Firdaus Omar Mohd ◽

Md Akil Hazizan ◽

Zainal Arifin Ahmad

Keyword(s):

Mechanical Properties ◽

Particle Size ◽

Strain Rate ◽

Testing Machine ◽

Rate Sensitivity ◽

Dynamic Mechanical Properties ◽

Particle Sizes ◽

Rate Condition ◽

Dynamic Mechanical ◽

Silica Nanocomposites

Filler-related characteristic such as particle size, shape and geometry are essential factors that need to be considered during the evaluation of the material’s performance especially in the area of particle filled composites. However, there is limited number of works are reported on this particular issue under high strain rate condition. Based on this concern, the paper presents an experimental results on the effect of particle sizes towards rate sensitivity and dynamic compressive properties of polypropylene/silica nanocomposites across strain rate from 10-2to 10-3s-1. The composite specimens were tested using universal testing machine for static loading and a compression split Hopkinson pressure bar apparatus for dynamic loading. Results show that, the stiffness and strength properties of polypropylene/silica nanocomposites were affected by the size of silica particles. However, the magnitudes of changed are somehow different between micro and nanosizes. On the other hand, particle size also plays a major contribution towards sensitivity of the polypropylene/silica nanocomposites where the smaller the reinforcement sizes, the less sensitive would be the composites. Overall, it is convenience to say that the particle size gives significant contribution towards rate sensitivity and dynamic mechanical properties of polypropylene/silica nanocomposites.

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