Tensile and flexural properties of polypropylene composites filled with highly effective flame retardant magnesium hydroxide |
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| Affiliation: | 1. Department of Wood Science and Technology, Faculty of Civil Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran;2. Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), P.O. Box 15815-3538, Tehran, Iran;1. Dept. Materials Science and Engineering, IQMAAB, Universidad Carlos III de Madrid, Madrid, Spain;2. Dept. Química, Facultad de Ciencias, Universidad de Navarra, 31080, Pamplona, Spain;1. Department of Materials Science, Fudan University, Shanghai 200433, PR China;2. Shanghai Nuclear Engineering Research & Design Institute (SNERDI), Shanghai 200233, PR China;3. Shanghai Institute of Process Automation Instrumentation (SIPAI), Shanghai 200233, PR China;1. Federal University of Santa Catarina, R. Eng. Agronômico Andrei Cristian Ferreira, s/n – Trindade, Florianópolis, SC, CEP 88040-900, Brazil;2. Ecole des Mines d’Alès, Centre des Matériaux (C2MA) – Pôle Matériaux Polymères Avancés, 6 Avenue de Clavières, 30319, Alès Cedex, France;3. Federal University of Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Alegre, CEP 91501-970, Brazil |
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| Abstract: | The reinforcing effects of highly effective flame retardant magnesium hydroxide (FMX) content on the tensile and flexural properties of filled polypropylene (PP) composites were investigated within the FMX weight fraction range from 5 to 60 wt%. It was found that the Young's modulus and flexural modulus increased approximately linearly while the tensile yield strength and tensile fracture strength decreased slightly with increasing the FMX weight fraction. When the FMX weight fraction was lower than 20%, the tensile elongation at break decreased considerably, and then decreased slightly; the flexural strength increased when the FMX weight fraction was lower than 30%, and then decreased slightly. The tensile properties increased with increasing rate of tension. Moreover, the tensile yield strength of the composites was estimated using an equation proposed in previous work, and good agreement was shown between the predicted and the measured data. |
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| Keywords: | Polymer-matrix composites Mechanical properties Stress/strain curves Strength Elastic properties |
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