Nanoclay‑ reinforced polymethylmethacrylate and its mechanical properties

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BARZEGAR ALI; GHAFFARI TAHEREH

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Journal Paper

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Journal: Dental Research Journal Year:2018 | Volume:15 | Issue:4 Page(s): 295-301

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Title

Nanoclay‑ reinforced polymethylmethacrylate and its mechanical properties

Author(s)

BARZEGAR ALI | GHAFFARI TAHEREH | Issue Writer Certificate

Keywords

Impact

nanoparticles

polymethylmethacrylate

strength

tensile strength

Abstract

Background: Incorporation of extra fillers into dental resins might enhance their physical properties. In this study, the tensile and Impact strengths of modified heat‑ curing acrylic resin reinforced with nanoclay were investigated. Materials and Methods: In this experimental study, nanoclay-acrylic resin composite was prepared by mixing 0. 5, 1, and 2 wt% of nanoclay with methacrylate monomer in an ultrasonic probe, followed by mixing with the polymethylmethacrylate (PMMA) powder. 24 cubic 20 mm × 20 mm × 200‑ mm specimens for each test, 18 samples containing nanoclay and 6 samples for the control group and a total of 48 samples were prepared. The tensile and Impact strengths of the samples were tested according to ISO 527 and 179, respectively. One‑ way ANOVA was used for statistical analysis, followed by multiple comparison tests (Scheffé ’ s test). Statistical significance was set at P < 0. 05. Results: The maximum mean tensile and Impact strengths were recorded in the control group, and an acrylic resin containing 2% of nanoclay demonstrated the minimum mean in all the tests. Increasing the percentage of nanoclay in PMMA compromised the tensile strength (P < 0. 05) with no effect on its Impact strength. Conclusion: Incorporation of nanoclay particles into acrylic resins can adversely affect the mechanical properties of the final products, and this effect is directly correlated with the concentration of nanoparticles.

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APA: Copy

BARZEGAR, ALI, & GHAFFARI, TAHEREH. (2018). Nanoclay‑ reinforced polymethylmethacrylate and its mechanical properties. DENTAL RESEARCH JOURNAL, 15(4), 295-301. SID. https://sid.ir/paper/325149/en

Vancouver: Copy

BARZEGAR ALI, GHAFFARI TAHEREH. Nanoclay‑ reinforced polymethylmethacrylate and its mechanical properties. DENTAL RESEARCH JOURNAL[Internet]. 2018;15(4):295-301. Available from: https://sid.ir/paper/325149/en

IEEE: Copy

ALI BARZEGAR, and TAHEREH GHAFFARI, “Nanoclay‑ reinforced polymethylmethacrylate and its mechanical properties,” DENTAL RESEARCH JOURNAL, vol. 15, no. 4, pp. 295–301, 2018, [Online]. Available: https://sid.ir/paper/325149/en

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