Mostrar el registro sencillo del ítem

dc.contributor.author
Cadena, Carlos Alberto  
dc.contributor.author
Acosta, Delicia Ester  
dc.date.available
2016-03-21T19:28:39Z  
dc.date.issued
2014-04-23  
dc.identifier.citation
Cadena, Carlos Alberto; Acosta, Delicia Ester; Effects of Solar UV Radiation on Materials Used in Agricultural Industry in Salta, Argentina: Study and Characterization; Scientific Research; Journal of Material Science and Chemical Engineering; 2; 4; 23-4-2014; 1-14  
dc.identifier.issn
2327-6045  
dc.identifier.uri
http://hdl.handle.net/11336/4882  
dc.description.abstract
The current study presents the characterization of three types of materials after exposure to solar UV radiation. The selection of the materials is related to socio-economic aspects and rural activities in the northwest of Argentina (a.k.a. NOA). The objective was to establish a time parameter that allows estimating the durability of the materials according to their use. One of the materials is used as a protective cover (polyethylene film) of greenhouses, which are used for crop cultivation in the area. Another material is used in photovoltaic modules (PVMs), which are used to supply energy in isolated areas and the third material is sunscreen used by people that are exposed to UV radiation during rural activities. Degradation or deterioration of the materials was monitored using different spectroscopic assays: infrared was used to detect any structural changes in the material, X-rays were used for possible changes in the crystalline structure of the material, and spectral transmittance as this property is likely to be affected by changes in the structure of the material. The results showed that degradation of polyethylene seems to be related to the diminution in transparency and the loss of mechanical resistance with increasing exposure time. The decrease in transparency of one of the layers of a PVM caused a considerable decrease in the energy generated, whereas the sunscreens with a low sun protection factor (SPF) rapidly lost their protective properties and changed their photostability properties. Our results revealed a relationship between relative transmittance loss and exposure timse, which allows estimating the stability of different materials.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Scientific Research  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Polyethylene Films  
dc.subject
Photovoltaic Modules  
dc.subject
Sunscreen Characterization  
dc.subject
Degradation Effects  
dc.subject.classification
Compuestos  
dc.subject.classification
Ingeniería de los Materiales  
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS  
dc.title
Effects of Solar UV Radiation on Materials Used in Agricultural Industry in Salta, Argentina: Study and Characterization  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2016-03-30 10:35:44.97925-03  
dc.identifier.eissn
2327-6053  
dc.journal.volume
2  
dc.journal.number
4  
dc.journal.pagination
1-14  
dc.journal.pais
Estados Unidos  
dc.description.fil
Fil: Cadena, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta. Instituto de Investigaciones En Energía No Convencional; Argentina  
dc.description.fil
Fil: Acosta, Delicia Ester. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta. Instituto de Investigación Para la Industria Química (i); Argentina  
dc.journal.title
Journal of Material Science and Chemical Engineering  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.scirp.org/journal/PaperInformation.aspx?PaperID=45203  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.4236/msce.2014.24001  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/10.4236/msce.2014.24001