Results 11 to 20 of about 97,061 (304)
Evaluation of Retention and Oral Health-Related Quality of Life for Completely Edentulous Subjects Wearing Heat-Cured, 3D-Printed, and Injection-Molded Polyamide Complete Dentures: Randomized Crossover Clinical Trial [PDF]
Dentistry JournalObjective: This study aims to evaluate the retentive forces and oral health-related quality of life of completely edentulous subjects wearing heat-cured, 3D-printed, and polyamide complete denture (CD) bases at different intervals.
Mohamed Ahmed Helal +4 more
doaj +2 more sources
Recycling and Degradation of Polyamides
MoleculesAs one of the five major engineering plastics, polyamide brings many benefits to humans in the fields of transportation, clothing, entertainment, health, and more.
Lin Zheng +4 more
doaj +3 more sources
Determining the Composition of Imported Recycled Plastics with Differential Scanning Calorimetry [PDF]
E3S Web of Conferences, 2021 The analysis of the composition of recycled plastics is the prerequisite for identifying the properties of recycled plastics goods-solid waste. This paper systematically studies the composition of crystalline polymers by differential scanning calorimetry,
Luo Chuan +5 more
doaj +1 more source
Polymers, 2023 Polyamide 4 (PA4) is a biobased and biodegradable polyamide. The high hydrogen bond density of PA4 bestows it with a high melting point that is close to its thermal decomposition temperature, thereby limiting the melt processing of PA4. In this study, PA4 was blended with polyamide 6 (PA6) and further modified with copolyamide 4/6 (R46). The effects of
Yajing Zhang +8 more
openaire +2 more sources
European Oral Research, 2021 Purpose: The aim of this study was to evaluate flexural strength, elastic modulus and dynamic mechanical analysis (DMA) of heat-polymerized polymethyl methacrylate resin, polyamide resin and glass fiber-reinforced polyamide resin.
Senem Ünver +1 more
doaj +1 more source
Molecules, 2021 This study investigated supercritical solvent impregnation of polyamide microfiltration membranes with carvacrol and the potential application of the modified membranes in ventilation of open surgical wounds.
Mariusz Nowak +3 more
doaj +1 more source
Deposition of Carbon Nanotube Films on Polyamide and Polypropylene Substrates: A Computer Simulation Approach [PDF]
Materials Research, 2016 In this work we study hydroxylated carbon nanotube (CNT) assembly on polyamide (PA) and polypropylene (PP) polymers activated by UV radiation from a theoretical and experimental perspective. Molecular computer simulation was done to understand the stable
Alejandro Heredia +6 more
doaj +1 more source
The influence of surfactant structure on the dyeing of polyamide knitting with acid dyes [PDF]
Chemical Industry and Chemical Engineering Quarterly, 2018 The influence of nonionic and anionic surfactants on the dyeing kinetics of polyamide 6 knitting was studied in this work. The influence of surfactants on the dyeing process is presented by determining the kinetic and thermodynamic parameters of dyeing ...
Ristić Nebojša N. +2 more
doaj +1 more source
Asymmetric polyamide nanofilms with highly ordered nanovoids for water purification
Nature Communications, 2020 Structure and morphology are critical to the performance of permeable and selective polyamide membranes in water purification. Here, the authors report a two layer asymmetric polyamide nanofilm in which a spherical polyamide dendrimer porous lower and a ...
Bingbing Yuan +4 more
doaj +1 more source
Membranes, 2022 In this work, thin-film composite polyamide membranes were fabricated using triethylenetetramine (TETA) and trimesoyl chloride (TMC) following the vacuum-assisted interfacial polymerization (VAIP) method for the pervaporation (PV) dehydration of aqueous ...
Marwin R. Gallardo +5 more
doaj +1 more source