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...

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...

De forma geral, diversos materiais entre eles poliméricos, cerâmicos e metálicos, podem apresentar propriedades de memória forma. O efeito é a propriedade onde os apresentam uma “memória” sua forma, ou seja, capacidade retornar inicial após sofrer algum tipo deformação, entretanto, esse depende da aplicação um estimulo externo para que o retorno aconteça, como calor, eletricidade, luz, outros. Esses são classificados inteligentes, pois respondem ordem química, física biológica. Este trabalho...

Elastomer materials featuring covalent cross-links deliver essential elastic performance for various applications. Despite their benefits, challenges like the need toxic chemical additives, emissions of harmful vapors, and difficulties in recycling these continue to pose environmental health concerns. Vitrimers emerge as an option, allowing recyclability vulcanized elastomers through use dynamic bonds. However, occur, it is generally necessary external catalysts, which generate negative side...

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...

Polymeric materials with self-healing and shape memory capabilities have gained increasing attention for their potential applications across various industries. In this study, zinc sodium ionomers were systematically investigated using a multi-faceted approach, including rheological analysis, Fourier-transform infrared spectroscopy (FTIR), dynamic mechanical thermal analysis (DMTA), X-ray diffraction (XRD), assessments. Rheological revealed distinct viscosity profiles among the ionomers,...

Blends of poly(lactic acid) (PLA) and ethylene/methyl acrylate/glycidyl methacrylate terpolymer (EMA‐GMA) with without the addition an organoclay were prepared by melt mixing in a twin screw extruder. Mechanical, morphological, structural, rheological properties systems have been investigated as function its compositions. The impact strength (IS) PLA increased EMA‐GMA. Furthermore, 2.5 wt% to PLA/EMA‐GMA blend promoted improvements mechanical properties, such IS, tensile strength,...

O poli(ácido lático) é um polímero biodegradável proveniente de fontes renováveis com grande potencial para substituir polímeros não biodegradáveis provenientes do petróleo. Entretanto, seu uso em determinadas aplicações restringido devido a sua elevada fragilidade e rigidez. Com o intuito tornar PLA mais tenaz, terpolímero (etileno/acrilato metila/metacrilato glicidila) -EMA-GMA foi adicionado ao diferentes concentrações. A adição EMA-GMA tornou estável durante processamento. Por FTIR...

In this work, for the first time, redox initiation was employed in melt free radical grafting of glycidyl methacrylate (GMA) and maleic anhydride (MA) onto polyethylene (PE) by reactive extrusion. Since it is very challenging to obtain high degrees GMA MA polymer backbones through conventional initiation, especially extrusion process, strategy using a peroxide/reducing agent initiator introduced. The system composed dicumyl peroxide (DCP) Tin(II) 2-ethylhexanoate (Sn(Oct)2). reaction...

Nanocompósitos de polietileno alta densidade/argila bentonita nacional foram preparados por intercalação fusão. A influência da adição argila sem tratamento e tratada com o sal quaternário amônio Cetremide do graftizado anidrido maléico (PE-g-MA) como agente compatibilizante foi avaliada. Os sistemas obtidos caracterizados inflamabilidade, propriedades mecânicas reológicas, difração raios X microscopia eletrônica transmissão. resultados transmissão indicaram a obtenção nanocompósitos...

Combining transparency, durability, chemical resistance, and high compressive strength, glass is one of the most used materials in our daily life. Consequently, large amounts waste produced are inevitable. Therefore, making rational use these resources improving their recycling an important challenge for both industry academia. Based on this, objective this work was to propose alternative production hollow blocks using kiln-casting process. For entire process, starting from design blocks,...

In this study, the effect of ethylene‐methyl acrylate (EMA) compatibilizer on thermo‐mechanical, rheological, and morphological properties poly(lactic acid) (PLA)/biopolyethylene (BioPE)/OMMT clay biocomposites was investigated. The containing 1 3 phr OMMT were characterized by X‐ray diffraction (XRD), mechanical properties, scanning electron microscopy (SEM), dynamic thermal analysis (DMTA), rheological under oscillatory shear flow. XRD results indicated that bionanocomposites with an...