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Listar por palabra clave "Polypropylene"

Mostrando ítems 1-20 de 22

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Acoustic properties of polypropylene composites reinforced with stone groundwood

López, Joan Pere; El Mansouri, Nour-Eddine; Alba Fernández, Jesús; Rey Tormos, Romina María del; Mutjé, Pere; Vilaseca, Fabiola (North Carolina State University, 2012)

[EN] Currently, acoustic isolation is one of the problems raised with building construction in Spain. The publication of the Basic Document for the protection against noise of the Technical Building Code has increased the ...
An analytical study of polypropylene as a support for paint layers. From concept to material in contemporary art

Llamas Pacheco, Rosario; Talamantes Piquer, María del Carmen (Elsevier, 2014)

The artist Jordi Teixidor is one of the leading exponents of twentieth century Spanish abstract art. In recent years, he has used a synthetic polymer as a support for his art work, namely polypropylene. The behaviour of ...
Deposition of gum rosin microspheres on polypropylene microfibres used in face masks to enhance their hydrophobic behaviour

Pavón-Vargas, Cristina Paola; Aldás-Carrasco, Miguel Fernando; Rayón Encinas, Emilio; Arrieta, Marina Patricia; López-Martínez, Juan (Elsevier, 2021-11)

[EN] The present study aims to investigate the effects of gum rosin (GR) microspheres coating over the hydrophobicity of the outer layer of a polypropylene (PP) based surgical face mask. The gum rosin coating was deposited ...
Desarrollo de materiales compuestos mediante la modificación de matrices de polipropileno por adición de nanofibras de carbono y nanotubos de carbono para su utilización en el sector textil

Peris Abad, Fernando (Universitat Politècnica de València, 2021-03-30)

[ES] Los Nanotubos (CNTs) y Nanofibras de Carbono (CNFs) son materiales de nueva generación que tienen características mejores que los materiales convencionalmente utilizados. Los Nanotubos están formados por carbono, ...
Desarrollo y caracterización de compuestos de lignina-poliolefina

Romero Morte, Sara (Universitat Politècnica de València, 2021-02-22)

[ES] Hoy en día, somos fuertemente dependientes de la energía, la mayoría de ellas proviene de combustibles fósiles y esta tendencia aumentará con el paso del tiempo si no encontramos una alternativa mejor. Paralelamente ...
Effect of Sodium Hydroxide Treatments on the Tensile Strength and the Interphase Quality of Hemp Core Fiber-Reinforced Polypropylene Composites

Rey Tormos, Romina María del; Serrat, Ramon; Alba Fernández, Jesús; Perez, Ildefonso; Mutje, Pere; Espinach, Francesc X. (MDPI AG, 2017)

[EN] The formulation of greener composite materials by substituting glass fibers with natural fibers is a current field of research. If such natural fiber reinforcements come from industrial side streams, as hemp core ...
Effect of the filler on the nanomechanical properties of polypropylene in contact with paraffinic phase change material

Giro-Paloma, J.; Rayón Encinas, Emilio; Roa, J. J.; Martínez, M.; Fernández, A. I. (Elsevier, 2015-02)

[EN] As the changes on the mechanical properties with depth of indentation provide valuable information that may be suitable for design purposes, nanoindentation is an adequate technique for investigating the nanomechanical ...
Enhancing the Thermal Stability of Polypropylene by Blending with Low Amounts of Natural Antioxidants

Hernández-Fernández, Joaquín; Rayón, E.; López-Martínez, Juan; Arrieta, Marina Patricia (John Wiley & Sons, 2019-11)

[EN] Natural antioxidants are added in very low amounts to protect a polypropylene (PP) matrix against thermo-oxidative degradation during processing. Thus, PP is melt-blended with caffeic, chlorogenic, trans-ferrulic, and ...
Estudio del impacto del reciclaje en las propiedades mecánicas, térmicas y reológicas del polímero HDPE

Alamar Tarazona, Carlos (Universitat Politècnica de València, 2021-01-27)

[ES] El TFG, asistido por la profesora Lidija Slemenik Per e, actual encargada del departamento de Ciencia de Materiales de la facultad de Mechanical Engineering de la Universidad de Eslovenia, trata sobre el estudio de ...
Estudio numérico del fallo por cortante en vigas de hormigón reforzado con fibras. Aplicación práctica en elementos prefabricados en el interior de una nave comercial situada en Igualada (Barcelona)

Talavera Sánchez, Santiago (Universitat Politècnica de València, 2019-10-18)

[EN] Recently, experimental campaigns are being carried out in the field of fibre reinforced concrete, in the Instituto de Ciencia y Tecnología del Hormigón (ICITECH) of Universitat Politècnica de València (UPV), as well ...
Hierarchical zeolites TNU-9 and IM-5 as the catalysts for cracking processes

Tarach, Karolina A.; Martínez-Triguero, Joaquín; Valencia Valencia, Susana; Wojciechowska, Kamila; Rey Garcia, Fernando; Góra-Marek, Kinga (Elsevier, 2023-12-05)

[EN] The 10-ring zeolites TNU-9 and IM-5 were obtained by a desilication and evaluated in series of acid-catalysed cracking reactions. n-Decane and 1,3,5-tri-iso-propylbenzene cracking were performed as model reactions, ...
Identification of biodegradable polymers as contaminants in the thermoplastic recycling process

Pavón-Vargas, Cristina Paola; Aldás-Carrasco, Miguel Fernando; Ferri, José-Miguel; Bertomeu, David; Pawlak, Franciszek; Samper, María-Dolores (Publicaciones DYNA SL, 2021-07)

[EN] In this work, the presence of biodegradable polymers in recycled plastic materials was characterized using readily available techniques. Recycled polypropylene (PP), polystyrene (PS) and polyethylene terephthalate ...
Improved thermo-mechanical properties by the addition of natural fibres in starch-based sustainable biocomposites

Moriana Torró, Rosana; Vilaplana, Francisco; Karlsson, Sigbritt; Ribes Greus, A. (Elsevier, 2011)

Sustainable biocomposites based on thermoplastic starch copolymers (Mater-Bi KE03B1) and biofibres (cotton, hemp and kenaf) were prepared and characterised in terms of their thermo-mechanical and morphological properties. ...
Interference of biodegradable plastics in the polypropylene recycling process

Samper, María-Dolores; Bertomeu, D.; Arrieta, M. P.; Ferri, J. M.; López-Martínez, Juan (MDPI AG, 2018)

[EN] Recycling polymers is common due to the need to reduce the environmental impact of these materials. Polypropylene (PP) is one of the polymers called commodities polymers' and it is commonly used in a wide variety of ...
Mechanical and thermal properties analysis of polypropylene reinforced with polyamide microfibre obtained from shredded tyres

Parres, F.; Crespo Amorós, José Enrique; Nadal Gisbert, Antonio Vicente; Navarro Vidal, Raúl (Smithers Rapra Technology, 2012)

The importance of recovering waste materials generated by industrialised societies is mainly due to the environmental impact that they have, and one of the principal problems is the presence of end of life tyres. The use ...
Non-Covalent Interactions on Polymer-Graphene Nanocomposites and Their Effects on the Electrical Conductivity

Apátiga, Jorge Luis; del Castillo, Roxana Mitzayé; del Castillo, Luis Felipe; Calles, Alipio G.; Espejel-Morales, Raúl; Favela, José F.; Compañ Moreno, Vicente (MDPI AG, 2021-06)

[EN] It is well known that a small number of graphene nanoparticles embedded in polymers enhance the electrical conductivity; the polymer changes from being an insulator to a conductor. The graphene nanoparticles induce ...
Novel silicon microparticles to improve sunlight stability of raw polypropylene

Gil Castell, Óscar; Badía Valiente, José David; Teruel Juanes, Roberto; Rodríguez, Marie-Isabelle; Meseguer Rico, Francisco Javier; Ribes Greus, María Desamparados (Elsevier, 2015-06)

Oxidation of polyolefins by ultraviolet/visible irradiation is a significant limitation for their use in several technological applications. The use of high-tech additives such as silicon microparticles becomes a compositing ...
Quantification of poisons for Ziegler Natta catalysts and effects on the production of polypropylene by gas chromatographic with simultaneous detection: Pulsed discharge helium ionization, mass spectrometry and flame ionization

Hernandez-Fernandez, Joaquin; López-Martínez, Juan (Elsevier, 2020-03-15)

[EN] This article describes a new simultaneous method for the analysis of sulfur-type poisons, hydrocarbons and permanent gases affecting the productivity of the Ziegler Natta catalyst during the synthesis of polypropylene ...
Recovery of (Z)-13-Docosenamide from Industrial Wastewater and Its Application in the Production of Virgin Polypropylene to Improve the Coefficient of Friction in Film Type Applications

Hernández-Fernández, Joaquín; Puello-Polo, Esneyder; López-Martínez, Juan (MDPI AG, 2023-01)

[EN] Additives play an important role in the production of plastic materials through their application, in which the mechanical, thermal, and physical properties of polymers are improved, making them last longer and be ...
Sistemas de revalorización de poliolefinas procedentes de residuos sólidos urbanos

Peinado López-Cepero, Francisco (Universitat Politècnica de València, 2023-06-26)

[ES] La revalorización del reciclado de plástico de envases se ha convertido en una de las prioridades ambientales más importantes a nivel mundial debido a que el plástico se ha convertido en uno de los materiales más ...