The Use of Experimental Design in the Evaluation of Mechanical Properties of Pp/Vermiculite Composites

Araújo, Elvis A. F.; Pacheco, Élen Beatriz Acordi Vasques; Visconte, Leila L. Y.; Silva, Ana L. N. da; Sirelli, Lys

doi:10.17654/ijmetapr2015_219_232

Cited by 2 publications

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“…Vermiculite (VMT) is a clay mineral of the mica family that is used as a filler in polymeric composites to reduce costs and/or modify properties such as modulus, hardness, thermal stability, opacity and gloss (Líbano et al, 2018;Fernández, 2017;Araújo et al, 2015;Gencel et al, 2014;Gomes et al, 2009). This study aimed to find alternatives for the use of plastic lumber by applying it as raw material for the production of WPCs with vermiculite, with potential use in civil construction.…”

Section: Introductionmentioning

confidence: 99%

Wood-Plastic Composite Based on Post-Consumer Hdpe and Vermiculite / Compósito Madeira-Plástico À Base De Hdpe Pós-Consumo E Vermiculita

Fernandes

Pereira

Bastos

et al. 2020

BJD

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Section: Introductionmentioning

confidence: 99%

Wood-Plastic Composite Based on Post-Consumer Hdpe and Vermiculite / Compósito Madeira-Plástico À Base De Hdpe Pós-Consumo E Vermiculita

Fernandes

Pereira

Bastos

et al. 2020

BJD

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Effect of clay amount and reprocessing cycles on thermal, morphological, and mechanical properties of polypropylene/organovermiculite nanocomposites

Araújo

Visconte

Silva

et al. 2019

Polymer Engineering & Sci

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Nanocomposites of polypropylene (PP) and PP-grafted-maleic anhydride (PP-g-MA) with and without organophilic vermiculite (OVMT) (5-8%w/w) were evaluated. The nanocomposites and neat PP were submitted to extrusion reprocessing cycles. It was found that the presence of OVMT in PP/PP-g-MA was critical for maintaining thermal stability during reprocessing. The exfoliation/intercalation was confirmed, mainly, in the nanocomposite submitted to reprocessing cycles, by X-ray diffraction. The melt flow index (MFI) values for the 3× and 5× reprocessed PP increased by 40% and 70%, respectively, as compared to the neat PP. The MFI for the 3× and 5× reprocessed PP/PP-g-MA/OVMT decreased 26% and 17%, respectively, as compared to the decrease occurred in the 3× and 5× reprocessed PP, indicating that the presence of 5% (w/w) OVMT was sufficient to allow an increase in viscosity. The reprocessed nanocomposites exhibited values for tensile and flexural strengths and Izod impact, in general, greater than or near to those of PP with the same number of reprocessing cycles. The increase or maintenance of mechanical properties seems to depend on a balance between the extent of intercalation/exfoliation and dispersion of OVMT in the PP matrix, and the degree of degradation of the PP matrix. POLYM. ENG. SCI., 59:2110-2120

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The Use of Experimental Design in the Evaluation of Mechanical Properties of Pp/Vermiculite Composites

Cited by 2 publications

References 0 publications

Wood-Plastic Composite Based on Post-Consumer Hdpe and Vermiculite / Compósito Madeira-Plástico À Base De Hdpe Pós-Consumo E Vermiculita

Wood-Plastic Composite Based on Post-Consumer Hdpe and Vermiculite / Compósito Madeira-Plástico À Base De Hdpe Pós-Consumo E Vermiculita

Effect of clay amount and reprocessing cycles on thermal, morphological, and mechanical properties of polypropylene/organovermiculite nanocomposites

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