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Polyolefins Journal، جلد ۹، شماره ۲، صفحات ۱۲۹-۱۳۸
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عنوان انگلیسی Foam rotational molding of hybrid polyethylene nanocomposites: synergistic effect of microtalc and nanoclay
چکیده انگلیسی مقاله Rotational molding is a process used to produce seamless, one-piece, and hollow polymeric parts. Foam rotational molding has recently become an increasingly important process in the foam industry. However, foam rotational molding is still a challenging process to fabricate polymeric foams. The focus of this manuscript was to assess the effect of material parameters on the foam properties of samples produced by rotational molding. Rotational molding experiments were performed on a laboratory-scale two-axis rotational machine, designed and manufactured by the authors. The effects of microtalc as nucleating agent, nanoclay as reinforcing agent, and their synergetic effect were investigated on the cell density, cell size, and expansion ratio of hybrid microtalc/nanoclay polyethylene nanocomposites. The cell density was improved by 96% and 89% by addition of 1 wt% of microtalc and nanoclay, respectively, compared to pure polyethylene foams. The cell size was reduced by 20% and 17.5% in 1 wt% of microtalc and nanoclay, respectively. However, the synergetic effect of using both microtalc and nanoclay at 1 wt% was more significant compared to their individual effects. The cell density was enhanced by 313% and the cell size was decreased by 35% compared to pure samples.
کلیدواژه‌های انگلیسی مقاله Foam rotational molding, microtalc, Nanoclay, synergistic effect, cellular structure
نویسندگان مقاله Saeed Karimzadeh |
Mechanical Engineering Department, Faculty of Engineering, Urmia University, Urmia, Iran

Taher Azdast |
Mechanical Engineering Department, Faculty of Engineering, Urmia University, Urmia, Iran

Rezgar Hasanzadeh |
Mechanical Engineering Department, Faculty of Engineering, Urmia University, Urmia, Iran

Milad Moradian |
Mechanical Engineering Department, Faculty of Engineering, Urmia University, Urmia, Iran

Hamidreza Akrami |
Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Road, Toronto M5S 3G8, Canada

نشانی اینترنتی http://poj.ippi.ac.ir/article_1883_78862b54dceca1d7e1c3de3c49dc941a.pdf
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