2024-03-29T09:02:44Zhttps://www.tdx.cat/oai/requestoai:www.tdx.cat:10803/77592022-12-08T19:27:33Zcom_10803_253col_10803_265
TDX (Tesis Doctorals en Xarxa)
author
López Sánchez, Ángel
authoremail
angel.lopez@udg.es
authoremailshow
true
director
Martí Bronsoms, Rafel
director
Mutjé Pujol, Pere
2011-04-12T17:36:04Z
2004-09-24
2004-07-27
8468886181
http://www.tdx.cat/TDX-0924104-125154http://hdl.handle.net/10803/7759
Gi. 1143-2004
The objective of this research is to study the influence of several recycling cycles on the mechanical properties of four different materials made by the injection of polystyrene. <br/>The four materials studied have different characteristics. The first one is polystyrene (PS), the second one is polystyrene reinforced with hemp fibers (PSf), the third one is polystyrene reinforced with hemp fibers modified with AKD (PSft) and the last one is polystyrene reinforced with fiberglass (PSfv). With all these materials tensile strength, bending, hardness and impact is measured. After the measurement of these physical properties, materials are recycled to obtain new injection samples, and its physical properties are measured again. This process is repeated during 24 cycles.<br/>After each recycling cycle material physical properties are related with polystyrene molecular weight, melt flow, FTIR spectra and DSC.<br/>From reinforced materials, fibers are recovered and through microscopy and image analysis they are characterized to study the influence that recycling has on its structure.
spa
Reciclado
Recycling
Fibras de cáñamo
Poliestireno
Poliestirè
Polystyrene
Fibres de cànem
Evolución propiedad
Evolució propietat
MFI
Lenght and diameter
Reciclatge
Longitud i diàmetre
Longitud y diámetro
Hemp fibers
Influencia del proceso de reciclado sobre las propiedades de los materiales compuestos obtenidos por inyección de poliestireno reforzado con fibras lignocelulósicas
info:eu-repo/semantics/doctoralThesis info:eu-repo/semantics/publishedVersion
URL
https://www.tdx.cat/bitstream/10803/7759/18/tals.pdf
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URL
https://www.tdx.cat/bitstream/10803/7759/16/tals.pdf.txt
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tals.pdf.txt