Influence of fiber content on the mechanical and dynamic mechanical properties of glass/ramie polymer composites |
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| Affiliation: | 1. Program of Postgraduate in Process and Technology Engineering (PGEPROTEC), University of Caxias do Sul, Rua Francisco Getúlio Vargas, 1130, 95070-560 Caxias do Sul, RS, Brazil;2. Program of Postgraduate Studies in Mining, Metals and Materials Engineering (PPGEM), Federal University of Rio Grande do Sul, Av. Bento Gonçalves, 9500, 91501-970 Porto Alegre, RS, Brazil;1. Biorefining Conversions and Fermentations Laboratory, Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada T6E 2P5;2. Department of Physics, University of Guelph, Guelph, ON, Canada N1G 2W1;1. PACE Institute of Technology & Sciences, JNTUK, Ongole 523272, India;2. R.V.R & J.C College of Engineering, ANU, Guntur 522019, India;1. School of Mechatronic Engineering, Universiti Malaysia Perlis, Pauh Putra Campus, 02600 Arau, Perlis, Malaysia;2. Sustainable Engineering Cluster, School of Materials Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis, Malaysia;3. School of Mechanical and Systems Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK;1. Department of Mechanical Engineering, KLS Vishwanathrao Deshpande Rural Institute of Techonology,Haliyal,Karnataka 581329, India;2. Department of Mechanical Engineering, NNRG School of Engineering, Ghatkesar Mandal, Rangareddy District, Telangana 500088, India;3. Department of Mechanical Engineering, SDM College of Engineering and Technology, Dharwad, Karnataka 580002, India;4. Department of Mechanical Engineering, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Amrita University, Bangalore Campus, Karnataka 560035, India;1. School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia;2. Department of Chemical Engineering Materials Environment, Sapienza-Università di Roma, Via Eudossiana 18, 00184 Roma, Italy;3. Cluster for Polymer Composites (CPC), Engineering & Technology Research Platform, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Pulau Pinang, Malaysia |
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| Abstract: | The combination of glass and ramie fibers with a polyester matrix can produce a hybrid material that is competitive to all glass composites (e.g. those used in the automobile industry). In this work, glass and ramie fibers cut to 45 mm in length were used to produce hybrid polymer composites by resin transfer molding (RTM), aiming to evaluate their physical, mechanical and dynamic mechanical properties as a function of the relative glass–ramie volume fractions and the overall fiber content (10, 21 and 31 vol.%). Higher fiber content and higher ramie fiber fraction in the hybrid composites yielded lower weight composites, but higher water absorption in the composite. The mechanical properties (impact and interlaminar shear strength) of the composites were improved by using higher fiber content, and the composite with 31 vol.% of reinforcement yielded the lowest value for the reinforcement effectiveness coefficient C, as expected. Although the mechanical properties were improved for higher fiber content, the glass transition temperature did not vary significantly. Additionally, as found by analyzing the adhesion factor A, improved adhesion tended to occur for the composites with lower fiber content (10%) and higher ramie fiber fraction (0:100) and the results for the adhesion factor A did not correspond to those found by the analysis of the tan delta peak height. |
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