A5091704911- Recycling and Waste Management Techniques
- biodegradable polymer synthesis and properties
- Additive Manufacturing and 3D Printing Technologies
- Membrane Separation Technologies
- Polymer Nanocomposites and Properties
- Polymer composites and self-healing
- Advanced Sensor and Energy Harvesting Materials
- Fuel Cells and Related Materials
- Natural Fiber Reinforced Composites
- Polymer Science and PVC
- Supercapacitor Materials and Fabrication
- Flame retardant materials and properties
- Photochromic and Fluorescence Chemistry
- Marine Sponges and Natural Products
- Membrane Separation and Gas Transport
- Microplastics and Plastic Pollution
- Electrophoretic Deposition in Materials Science
- Electrospun Nanofibers in Biomedical Applications
- Advanced Materials and Mechanics
Universidade Federal de Campina Grande
2011-2025
Gonzaga University
2022
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 In this study, polylactide/ethylene-glycidyl methacrylate (PLA/E-GMA) binary blends were prepared via melt blending to investigate their potential for 4D printing. The aim was enhance shape memory effects (SMEs) and dynamic responses in the printed objects by exploring different compositions, printing parameters, temporary shapes. Several characterizations performed, including Fourier transform infrared spectroscopy, rheological properties, mechanical analysis (DMTA), scanning...
In this work, acrylonitrile butadiene styrene (ABS) copolymer from electronic waste (e-waste) was used to produce filaments for application in 3D printing. Recycled ABS (rABS) e-waste blended with virgin (vABS) different concentrations. By differential scanning calorimetry, it observed that the values of glass transition temperatures vABS/rABS blends ranged between vABS and rABS. Torque rheometry analysis showed processability not compromised addition Rheological measurements viscosity...
Abstract Fruit wastes from the agro‐industry may be used in preparation of polymer/natural fiber composites. In current scenario, there is a growing need for sustainable materials that can reduce environmental impact while maintaining or enhancing material properties. One promising approach incorporation natural fibers derived fruit waste into polymers, which aligns with global push toward eco‐friendly and circular economy solutions. This work was aimed at development filaments...
Polymer blend is the name for physical mixture of two or more polymers and/or copolymers, and this allows obtention new materials with superior properties to those pure components. The blends have been used in obtaining membranes order improve barrier so that it can separate phases totally partially, restricting transport one chemical species. In work, polymer were obtained from PA6/PPgAA PA6/PP/PPgAA by phase inversion method studied scanning electron microscopy (SEM) X-ray diffraction...
RESUMO Avaliou-se a funcionalização do sistema polimérico PVC/Carbonato diante da incorporação de resíduos borracha SBR-r. As amostras foram preparadas em um misturador interno tipo Haake e avaliado o torque aos serem incorporados os no polimérico. Nas diversas concentrações SBR-r estudadas considerando as condições equilíbrio durante processamento, misturas caracterizadas através ensaios físico-químicos mecânicos. Nos espectros FTIR, pode se observar que resíduo, mesmo nas maiores...
Abstract The objective of this work was to evaluate the functionalization PVC/CARBOBATE polymer system with addition SBR and Polyvinyl chloride-PVC CaCO3 carbonate through incorporation prepared in a torque rheometer. Variations concentrations Poly (vinyl chloride) (C2H3Cl) CaC03 under processing conditions obtain balance mixture controlled environment temperature, time torque. mixtures made were characterized analyzed terms their physical mechanical properties traction, hardness fluidity....
The extraction and use of asbestos have been banned around the world because its damage effects to human health, it leads studies new materials in order replace several processes. objective this paper is apply simplex lattice planning mixture model manufacture diaphragms. A was performed according lattice, using four polyethylene microfibers (MF's) different lengths, with 1st degree polynomial, adding inner central points a repetition, generating 18 mixtures. results showed that greater...