A5072582980- Polymer Nanocomposites and Properties
- biodegradable polymer synthesis and properties
- Polymer crystallization and properties
- Natural Fiber Reinforced Composites
- Textile materials and evaluations
- Polymer composites and self-healing
- Electrospun Nanofibers in Biomedical Applications
- Additive Manufacturing and 3D Printing Technologies
- Polymer Nanocomposite Synthesis and Irradiation
- Metallurgy and Material Forming
- Advanced Sensor and Energy Harvesting Materials
- Tribology and Wear Analysis
- Microplastics and Plastic Pollution
- Rheology and Fluid Dynamics Studies
- Engineering Applied Research
- Recycling and Waste Management Techniques
- Advanced Manufacturing and Logistics Optimization
- Bone Tissue Engineering Materials
- Innovations in Concrete and Construction Materials
- Material Properties and Processing
- Mechanical Failure Analysis and Simulation
- Flame retardant materials and properties
- Mechanical Engineering and Vibrations Research
- Carbon dioxide utilization in catalysis
- Chemistry Education and Research
Universidade Federal de Campina Grande
2016-2025
Faculdades Guarulhos
2018
Departamento de Ciência e Tecnologia
2008
Materia (United States)
2008
Brazilian Agricultural Research Corporation
2008
Universidade Federal da Paraíba
2000-2004
Abstract In this work, polylactic acid (PLA)/copolymer blends were prepared by melt blending. Ethylene‐glycidyl methacrylate (E‐GMA) and ethylene‐butyl acrylate‐maleic anhydride (EBA‐MAH) functional block copolymers used. A ternary blend of PLA/E‐GMA/EBA‐MAH was also studied. FTIR analyses evidenced the occurrence reactive compatibilization E‐GMA EBA‐MAH with PLA in binary due to reactivity GMA MAH groups terminal hydroxyl carboxyl PLA. Rheological measurements cross‐link reactions between...
Abstract The objective of this study is to investigate the influence crystallization on shape memory effect (SME) poly (lactic acid) (PLA). Different thermal treatment times were applied PLA obtain different degrees crystallinity. Additionally, a sample was cooled rapidly an amorphous PLA. characterization techniques used in Fourier transform infrared spectroscopy, x-ray diffraction, Dynamic Mechanical Analysis, differential scanning calorimetry, optical microscopy, and SME evaluated by...
This study investigates the influence of a ethylene-glycidyl methacrylate copolymer (EGMA) on shape memory effect (SME) and impact resistance PETG/EGMA thermoplastic vulcanizates (TPVs). The TPVs were prepared by dynamic vulcanization through simple melt blending polymers without need for curing agents such as DCP or sulfur. Simultaneously, in situ reactive compatibilization was achieved solely, any compatibilizer. SME, mechanical, thermomechanical, rheological, chemical, morphological...
ABSTRACT The rapid increase in waste electrical and electronic equipment (WEEE) poses a significant environmental challenge. To address this issue, initiatives promoting circular economy principles have emerged, such as utilizing recycled acrylonitrile butadiene styrene (ABSr) high‐impact polystyrene (HIPSr) from WEEE. This study evaluated the properties of virgin ABS (ABSv)/ABSr ABSv/HIPSr blends, with ABSr HIPSr obtained TV housing blend samples were prepared using filament extrusion,...
Abstract Depending on the conditions of polymer synthesis, polyethylene can exhibit various molecular structures, such as long and short-chain branching, which influence its weight distribution. The structure in blend significantly impacts properties, making it essential to study these effects blend’s final properties. Based above, this work aims investigate 1-hexene short chain branching (SCB) linear low-density (LLDPE) (LCB) (LDPE) polymers rheological properties processing blends with...
In this work, Polylactide/Biopolyethylene blends were developed. Although some studies have been carried out on polylactide/polyethylene blends, none of them has used polyethylene synthesized with raw material obtained from natural sources. Due to the incompatibility between polylactide and polyethylene, E-GMA EMA-GMA compatibilizers used. These present glycidyl methacrylate groups in their structure, which may react functional end-groups polylactide. To evaluate properties, characterized by...
Summary In this work, the effect of Ethylene‐Glycidyl Methacrylate (E‐GMA) and Ethylene‐Methyl Acrylate‐Glycidyl (EMA‐GMA) copolymers on mechanical morphological properties blends poly (lactic acid) (PLA) with biopolyethylene (BioPE) was evaluated. Uncompatibilized compatibilized were prepared by extrusion followed injection molding characterized Melt Flow Index (MFI), Fourier Transform Infrared Spectroscopy (FTIR), properties, Scanning (SEM) Transmission electron microscopy (TEM). The...
The objective of this study was to develop bionanocomposites from blends poly(lactic acid) (PLA) and poly(butylene adipate-co-terephthalate) (PBAT) 3% 6% bentonite clay. Initially, the clay treated with Praepagen salt, properties modified were evaluated. After organophilization completed, 50:50 PLA/PBAT prepared, 3 added. To test dispersion system, blending sequence performed using eight different sequences for addition matrices. mixtures prepared in a twin screw extruder, specimens...
Nylon 6/acrylonitrile-butadiene-styrene nanocomposites were prepared by mixing in a molten state and injection molded for application electromagnetic interference shielding antistatic packaging. Multi-wall carbon nanotubes (MWCNT) maleic anhydride-grafted ABS compatibilizer incorporated to improve the electrical conductivity mechanical performance. The characterized oscillatory rheology, Izod impact strength, tensile thermogravimetry, current-voltage measurements, against interference,...
The mechanical properties of polyester/fiberglass composites were studied. aim this work was to evaluate the possibility reusing wastes taken from spray-up processing Paraíba state Industries as reinforcement in polyester matrix composites. Composites with 20, 30, 40, 50 and 60 wt. (%) recycled fiberglass prepared by compression molding compared polyester/ virgin glass fiber water sorption behavior evaluated. results showed that are promising be reused resin impact strength excellent. It can...
In this work, polyamide 6 (PA6) properties were tailored and improved using a maleic anhydride-grafted acrylonitrile-butadiene-styrene terpolymer (ABS-MA). The PA6/ABS-MA blends prepared co-rotational twin-screw extruder. Subsequently, the extruded pellets injection-molded. Blends characterized by torque rheometry, Molau test, Fourier transform infrared spectroscopy (FTIR), impact strength, tensile Heat Deflection Temperature (HDT), Differential Scanning Calorimetry (DSC), Thermogravimetry...