Search results for " thermo-oxidative stability"

showing 3 items of 3 documents

Thermo-oxidative stabilization of poly(lactic acid)-based nanocomposites through the incorporation of clay with in-built antioxidant activity

2017

In this work, an innovative approach to overcome the issue of the poor thermo-oxidative stability of polymer/clay nanocomposites is proposed. Specifically, biodegradable poly(lactic acid) (PLA)-based nanocomposites, containing organo-modified clay with in-built antioxidant activity, were prepared. Through a two-step chemical protocol, a hindered phenol antioxidant was chemically linked to the ammonium quaternary salt which was then intercalated between the clay platelets [(AO)OM-Mt]. The nanocomposites were characterized and their thermo-oxidative stability during melt processing and under long-term thermal test conditions was investigated. PLA nanocomposites containing the (AO)OM-Mt showed…

Materials Chemistry2506 Metals and AlloysAntioxidantMaterials sciencePolymers and Plasticsmedicine.medical_treatmentSurfaces Coatings and FilmSalt (chemistry)02 engineering and technologybio-based nanocomposites; montmorillonite; poly(lactic acid) (PLA); thermo-oxidative stability; Chemistry (all); Surfaces Coatings and Films; Polymers and Plastics; Materials Chemistry; 2506; Metals and Alloysmontmorillonite010402 general chemistry01 natural sciencescomplex mixturesCoatings and Filmschemistry.chemical_compoundPolylactic acidpoly(lactic acid) (PLA)medicineMaterials ChemistryOrganic chemistrythermo-oxidative stabilitychemistry.chemical_classificationPolymers and PlasticNanocompositebio-based nanocompositesChemistry (all)Metals and AlloysGeneral ChemistryPolymer021001 nanoscience & nanotechnologybio-based nanocomposite0104 chemical sciencesSurfaces Coatings and FilmsLactic acidSurfacesMontmorillonitechemistryChemical engineering25060210 nano-technologyDispersion (chemistry)
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Influence of antioxidants intercalated layered double hydroxides (AO-LDHs) on the thermo-oxidative stability of pla and pe based nanocomposites

2016

Layered double hydroxides (LDHs) are excellent host matrices for storage and delivery of antioxidants (AOs).

antioxidant layered double hydroxides thermo-oxidative stability nanocomposites
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Sonication-Induced Modification of Carbon Nanotubes: Effect on the Rheological and Thermo-Oxidative Behaviour of Polymer-Based Nanocomposites.

2018

The aim of this work is the investigation of the effect of ultrasound treatment on the structural characteristics of carbon nanotubes (CNTs) and the consequent influence that the shortening induced by sonication exerts on the morphology, rheological behaviour and thermo-oxidative resistance of ultra-high molecular weight polyethylene (UHMWPE)-based nanocomposites. First, CNTs have been subjected to sonication for different time intervals and the performed spectroscopic and morphological analyses reveal that a dramatic decrease of the CNT's original length occurs with increased sonication time. The reduction of the initial length of CNTs strongly affects the nanocomposite rheological behavio…

sonicationMaterials scienceCNTs; Nanocomposites; Rheology; Sonication; Thermo-oxidative stability; UHMWPE; Materials Science (all)SonicationUHMWPE02 engineering and technologyCarbon nanotube010402 general chemistry01 natural scienceslcsh:TechnologyArticlelaw.inventionchemistry.chemical_compoundUHMWPE; CNTs; sonication; nanocomposites; rheology; thermo-oxidative stabilityThermal conductivityRheologylawnanocompositesthermo-oxidative stabilityGeneral Materials Sciencelcsh:Microscopylcsh:QC120-168.85chemistry.chemical_classificationNanocompositeCNTslcsh:QH201-278.5lcsh:TPolymerPolyethylene021001 nanoscience & nanotechnology0104 chemical scienceschemistryChemical engineeringlcsh:TA1-2040Interphaselcsh:Descriptive and experimental mechanicsrheologylcsh:Electrical engineering. Electronics. Nuclear engineeringMaterials Science (all)0210 nano-technologylcsh:Engineering (General). Civil engineering (General)lcsh:TK1-9971Materials (Basel, Switzerland)
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