Search results for "Thermoplastic composite"

showing 3 items of 3 documents

Investigation on the behaviour of fully thermoplastic composite sandwich beams under concentrated loads

2009

The recent development of new low cost manufacturing processes adopting thermoplastic matrices in the production of structural long fibre reinforced laminates is fostering an increasing interest towards this class of materials. The automotive sector in particular is attracted by the high energy absorbing, damage tolerance performances and manufacturing and recycling potentials of structural thermoplastic composites. In this study a number of fully thermoplastic sandwich beams have been manufactured in order to investigate flexural and shear rigidity performances as well as the indentation behavior under static concentrated loads.

Settore ING-IND/14 - Progettazione Meccanica E Costruzione Di MacchineThermoplastic composites sandwich beams Indentation Hyperelastic Foams
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Experimental and numerical investigation on a new FSW based metal to composite joining technique

2018

Abstract In the last decades, different techniques were proposed to join aluminum sheets with composites materials. Each of them has advantages and weak points over the others and new techniques and patents are continuously developed to overcome these difficulties. In this paper an experimental and numerical investigation on a new Friction Stir Welding based approach to mechanically join AA6082-T6 to self-reinforced polypropylene is presented. The aluminum sheet is pre-holed along both the sides of the weld line and a pinless tool generates the heat and pressure needed to prompt back-extrusion of the composite. New experimental fixtures and hole designs were investigated in order to enhance…

010302 applied physicsMaterials scienceFSWStrategy and ManagementComposite numberAluminum AlloyProcess (computing)Mechanical engineeringWeld line02 engineering and technologyManagement Science and Operations ResearchMechanical resistance021001 nanoscience & nanotechnology01 natural sciencesIndustrial and Manufacturing EngineeringStrategy and Management1409 Tourism Leisure and Hospitality Management0103 physical sciencesFriction stir weldingJoin (sigma algebra)Dissimilar jointThermoplastic compositePolypropylene0210 nano-technologySettore ING-IND/16 - Tecnologie E Sistemi Di LavorazioneJournal of Manufacturing Processes
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Reactive blending of a functionalized polyethylene with a semiflexible liquid crystalline copolyester

1996

Reactive blends (50/50 w/w) of a low molar mass polyethylene containing free carboxylic groups (PEox) and a semiflexible liquid crystalline polyester (SBH 1 : 1 : 2, by Eniricerche) have been prepared at 240 degrees C in a Brabender mixer, in the presence of Ti(OBu)(4) catalyst, for different mixing times (15, 60, and 120 min). In order to prove the formation of a PE-g-SBH copolymer, the blends have been fractionated by successive extractions with boiling toluene and xylene. The soluble fractions and the residues have been analyzed by Fourier transform infrared (FTIR) spectroscopy, thermogravimetry (TG and DTG), differential scanning calorimetry (DSC), and scanning electron microscopy (SEM)…

Molar massPolymers and PlasticsCOMPATIBILIZATIONChemistryGeneral ChemistryPolyethyleneCopolyesterTHERMOPLASTIC COMPOSITESSurfaces Coatings and FilmsPolyesterThermogravimetrychemistry.chemical_compoundDifferential scanning calorimetryPOLYMER BLENDSSettore ING-IND/22 - Scienza E Tecnologia Dei MaterialiChemical engineeringPolymer chemistryTRANSESTERIFICATIONMaterials ChemistryMORPHOLOGYThermal stabilityFourier transform infrared spectroscopyPOLYPROPYLENEPOLYESTERS
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