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Nanoscience and Technology: An International Journal

Publicado 4 números por año

ISSN Imprimir: 2572-4258

ISSN En Línea: 2572-4266

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.3 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.7 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.7 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00023 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.11 SJR: 0.244 SNIP: 0.521 CiteScore™:: 3.6 H-Index: 14

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ENVIRONMENTAL EFFECTS ON MATERIAL PROPERTIES OF MWCNT REINFORCED NANOCOMPOSITES

Volumen 3, Edición 1, 2012, pp. 27-49
DOI: 10.1615/NanomechanicsSciTechnolIntJ.v3.i1.20
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SINOPSIS

This research work presents the effects of environmental conditions on mechanical properties of nanocomposites. Different contents of multi-walled carbon nanotubes (MWCNTs) were added as reinforcements into an isophthalic polyester (iPE) matrix. Two MWCNT contents were considered: 0.5 wt.% and 1.0 wt.%. Three environmental temperatures were applied: room temperature (25°C), dry-heating conditions (75°C), and subambient conditions (−24° C). The specimens were exposed to the different combinations of conditions for 250 h and 500 h, respectively. Material properties of nanocomposites were evaluated by the tensile test, shear test, and dynamic mechanical analysis (DMA) test. Tensile test results showed that nanocomposites had higher Young's modulus and ultimate tensile strength at room temperature compared to neat isophthalic polyester. Young's modulus, tensile strength, and shear strength of nanocomposites exposed to environmental conditions, especially the dry-heating ones, decreased significantly compared to the specimens exposed to subambient conditions. However, shear strength of nanocomposites was not very sensitive to environmental conditions regardless of the exposure time. DMA test results showed that nanocomposites had higher glass transition temperatures than neat isophthalic polyester due to the reduction of the mobility in polyester matrix around MWCNTs.

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