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Experimental study on mechanical behaviors of injection molded PC/PMMA blends

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Abstract

Mechanical property is one of the quite important factors of optical articles. Most of pure plastics materials are rarely found to have both high strength and toughness. The paper aims to investigate mechanical properties of polymethyl methacrylate and polycarbonate (PC/PMMA) blends by means of injection molding process and optimization technique. In this study, four factors including composition, packing pressure, melt temperature, and cooling time are taken into account. Experimental results show that the composition is found as the most significant factor for improving the mechanical properties of PC/PMMA blends with confidence level of 95 %. Meanwhile, melt temperature and cooling time are also the most significant parameters for enhancing impact strength with 95 % confidence level. In addition, the mechanical properties of the PC/PMMA plastics composites have been enhanced significantly. Specifically, average tensile yield strength, impact strength, and average elongation are 76.5 MPa, 7429.5 J/m2, and 17.5 mm, respectively.

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Acknowledgments

The authors would express their acknowledgments to Professor Chao-Chang A. Chen from Department of Mechanical Engineering, National Taiwan University of Science and Technology for his support.

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Correspondence to Van Thanh Hoang or Duc Binh Luu.

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Van Thanh Hoang is a lecturer of the Faculty of Mechanical Engineering, University of Science and Technology, The University of Danang, Danang City, Vietnam. He received his Ph.D. in Mechanical Engineering from Yeungnam University. His research interests include injection molding process for optical elements, numerical analysis, microfluidics, precision manufacturing, polymer blend, design of experiment.

Quang Bang Tao is a Lecturer of the Faculty of Mechanical Engineering, University of Science and Technology, the University of Danang, Danang City, Vietnam. He received his Ph.D. in Mechanical Engineering from Paris Saclay University. His research interests include advanced materials, materials engineering and technology, numerical simulation.

Bich-Tram Truong-Le is a lecturer of the Faculty of Chemical Engineering, University of Science and Technology, the University of Danang, Danang City, Vietnam. She received her Ph.D. in Chemical Engineering from National Taiwan University of Science and Technology. Her research interests include organic chemical engineering, biomedical materials, design of experiment.

Minh Sang Tran is a lecturer of the Faculty of Mechanical Engineering, University of Science and Technology, the University of Danang, Danang City, Vietnam. He received his Ph.D. in Mechanical Engineering from National Cheng Kung University. His research interests include optimal design, injection moulding, jetting dispenser, design of experiment.

Duc Binh Luu is an Associate Professor of the Faculty of Mechanical Engineering, University of Science and Technology, the University of Danang, Danang City, Vietnam. He received his Ph.D. in Mechanical Engineering from the University of Danang. His research interests include precision manufacturing, CAD/CAM/CNC, design of experiment.

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Hoang, V.T., Tao, Q.B., Truong-Le, BT. et al. Experimental study on mechanical behaviors of injection molded PC/PMMA blends. J Mech Sci Technol 35, 3959–3966 (2021). https://doi.org/10.1007/s12206-021-0809-4

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  • DOI: https://doi.org/10.1007/s12206-021-0809-4

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