سال انتشار:
2020
عنوان انگلیسی مقاله:
Scaling laws of Mullins effect in nitrile butadiene rubber nanocomposites
ترجمه فارسی عنوان مقاله:
مقیاس بندی قوانین اثر مولین در نانوکامپوزیت های لاستیکی بوتادین نیتریل
منبع:
Sciencedirect - Elsevier - Polymer, 193 (2020) 122350: doi:10:1016/j:polymer:2020:122350
نویسنده:
Zhiyun Li , Fuxiang Wen , Munir Hussain , Yihu Song *, Qiang Zheng **
چکیده انگلیسی:
Rubber nanocomposites experiencing cyclic deformation undoubtedly exhibit Mullins effect whose underlining
mechanisms are not yet clear. Herein this effect in nitrile butadiene rubber nanocomposites is systematically
investigated for revealing the influences of pre-strain interval, loading and unloading velocities, temperature,
filler type and content, as well as crosslinking agent. The results show that the recovery hysteresis energy and
accumulative softening energy of the nanocomposites can be superposed onto master curves as a function of
microscopic strain of the rubber phase, revealing that both involving the viscoelastic deformation of the rubber
phase. Especially the recovery hysteresis highly depending on temperature and loading and unloading velocities
is connected to the viscoelasticity of nonideally crosslinked rubber network in the nanocomposites. On the other
hand, the accumulative softening energy loss comes from recovery retardation of rubber chains and is somewhat
sensitive to the filler, temperature and crosslinking agent. The investigation would be instructive to clarify the
physical origin of Mullins effect to produce low dissipation rubber nanocomposites.
Keywords: Mullins effect | Energy loss | Nanocomposites
قیمت: رایگان
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