Search results for "accelerated weathering"

showing 2 items of 2 documents

Rheological, mechanical and morphological characterization of monopolymer blends made by virgin and photo-oxidized polypropylene

2021

In this work, monopolymer blends of virgin polypropylene and photo-oxidized polypropylene were prepare and characterized. The polypropylene samples were subjected to accelerated ageing to simulate the effects of outdoor exposure of polypropylene. After exposure, samples were pelletized and mixed with the same virgin polymer. The rheological, mechanical and morphological characterization was conducted on both the polymers and the blends. Both viscosity and mechanical properties decrease with increases in the content of recycled, photo-oxidized components and of the level of degradation of this component. In addition, the experimental data were compared with a model that takes into account bo…

Materials scienceAccelerated weathering Additive model Monopolymer blend Polypropylene02 engineering and technologyManagement Monitoring Policy and Law010402 general chemistry01 natural sciencesViscositychemistry.chemical_compoundRheologyGE1-350General Materials ScienceComposite materialadditive modelWaste Management and Disposalaccelerated weatheringchemistry.chemical_classificationPolypropylenemonopolymer blendPolymer021001 nanoscience & nanotechnology0104 chemical sciencesCharacterization (materials science)Environmental sciencesSettore ING-IND/22 - Scienza E Tecnologia Dei MaterialichemistryDegradation (geology)0210 nano-technologypolypropylene
researchProduct

Laboratory Tests for Assessing the Reliability and Durability of Innovative Cold-Glued 3D Glass Building Subcomponents

2020

The paper shows the results of analyses of the behavior of an innovative subcomponent made of two glass shells and a plastic thermal belt interfaced with a resin-based adhesive, in order to define the plastic material–adhesive combination able to guarantee compliance with the requirements related to mechanical strength, thermoacoustic insulation, dimensional stability, material compatibility, and durability. Two different types of ultraviolet (UV)-curing adhesive were used to establish the best plastic–adhesive combination. A study of the mechanical behavior and the reliability over time of the bonded assembly was conducted by performing accelerated weathering tests and tensile tests on 30 …

Materials scienceVisual Arts and Performing ArtsAccelerated weathering.Settore ICAR/10 - Architettura TecnicaMechanical engineeringUV-curing adhesiveBuilding and ConstructionPlasticReliabilityClimatic chamberDurabilityDurabilityOrder (business)ArchitectureGlaAdhesiveSingle lap jointInnovative componentReliability (statistics)Civil and Structural EngineeringJournal of Architectural Engineering
researchProduct