Article
Polymer Science
Dipti Saxena, Pralay Maiti
Summary: The study investigated the performance of a chemical mixture (C-M) made of low density polyethylene (LDPE) and electronic waste of acrylonitrile butadiene styrene (ABS) prepared via one step reactive extrusion. Results showed that C-M exhibited excellent mechanical properties and thermal stability.
Article
Materials Science, Multidisciplinary
Laongdaw Techawinyutham, Jiratti Tengsuthiwat, Rapeeporn Srisuk, Wiroj Techawinyutham, Sanjay Mavinkere Rangappa, Suchart Siengchin
Summary: Blending recycled PETG, LDPE, and HDPE can improve the properties of plastic wastes and reduce waste in plastic processing plants. LDPE/PETG blends show better impact resistance and flexibility, while HDPE/PETG blends enhance mechanical properties.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Polymer Science
Victor S. Cecon, Paulo F. Da Silva, Keith L. Vorst, Greg W. Curtzwiler
Summary: Polyethylene recycling is gaining momentum, with research showing that blending polyethylene of different densities with recycled polyethylene can optimize product performance and reduce costs.
POLYMER DEGRADATION AND STABILITY
(2021)
Article
Engineering, Mechanical
Cleiton Lazaro Fazolo De Assis, Cleber Augusto Rampazo
Summary: This study evaluates the mechanical behavior of PC/ABS filaments for FFF and finds that PC/ABS (70/30) exhibits higher tensile strength. Infill pattern has the highest contribution to the responses, with the concentric pattern showing higher tensile strength. The study provides insights for the design and manufacturing of 3D printed parts using PC/ABS filaments.
RAPID PROTOTYPING JOURNAL
(2023)
Article
Materials Science, Characterization & Testing
Jani Pelto, Carlos Barreto, Hany Anwar, Laura Strobl, Martin Schlummer
Summary: This study focuses on the development of high-performance PC/ABS blends using recycled PC and recycled ABS from waste electronic equipment. The mechanical properties of the blends were improved by adding virgin ABS and additives. Purification and decontamination processes were used to remove halogenated contaminants from the waste fractions. Gas chromatography and X-ray fluorescence analyses confirmed the efficient removal of contaminants from the recycled PC. The addition of virgin ABS and a suitable compatibilizer enhanced the properties of the recycled PC/ABS blends.
Article
Polymer Science
Carlos Bruno Barreto Luna, Danilo Diniz Siqueira, Edcleide Maria Araujo, Emanuel Pereira Nascimento, Joao Baptista Costa Agra de Melo
Summary: The use of SEBS as a compatibilizing agent in PP/ABS blends resulted in significant improvements in impact strength, thermal stability, and tensile strength. The addition of SEBS helped refine the morphology without compromising other properties of PP, while also enhancing toughness and thermal stability.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2022)
Article
Polymer Science
Charles Signoret, Pierre Girard, Agathe Le Guen, Anne-Sophie Caro-Bretelle, Jose-Marie Lopez-Cuesta, Patrick Ienny, Didier Perrin
Summary: The incorporation of polypropylene (PP) into ABS plastics can lead to various issues, which can be improved by adding compatibilizers; the Response Surface Methodology can be used to evaluate the impact of extrusion temperature and screw speed on the impact resistance of the ABS + 4 wt% PP system.
Article
Polymer Science
Anissa Eddhahak
Summary: This research focuses on the utilization of ABS/PC polymers obtained from waste electronic equipment, comparing their properties with virgin materials. Experimental results show a synergistic effect when blending ABS and PC waste, leading to enhanced stiffness despite a decrease in mechanical properties. The waste blends exhibit ductile mechanical behavior.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Hamdi Kuleyin, Recep Gumruk, Samet Caliskan
Summary: This study examines the fatigue behavior of PMMA/ABS polymer blends through experimental studies. The material properties of the blends were characterized using TGA, FTIR, and DSC investigations. The results show that adding ABS to the blends increases the fatigue strength and number of cycles to failure, but decreases the yield strength. Therefore, PMMA/ABS blends can be used in applications with fatigue loading conditions.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Mastooreh Seyedi, Mykhailo Savchak, Andrii Tiiara, Igor Luzinov
Summary: This research reports the compatibilization of immiscible PS/PP blends using graphene oxide (GO) modified with a bottlebrush reactive copolymer layer. The study shows that the GO-P blend has higher interfacial activity and the GO-P sheets are more easily incorporated into the PS/PP interphase. The introduction of GO-P enhances the mechanical properties of the blends.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Polymer Science
Denise Hirayama, Lothar Andreas Nunnenkamp, Fernando Henrique Guedes Braga, Clodoaldo Saron
Summary: The study found that ABS and HIPS from waste electrical and electronic equipment (WEEE) can be recycled as ABS/HIPS blends, with the mechanical properties controlled by using compatibilizers and incorporating virgin polymers, avoiding the need for polymer segregation during mechanical recycling.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Engineering, Chemical
Vishal Mishra, Ch Kapil Ror, Sushant Negi, Simanchal Kar, Lakshi Nandan Borah
Summary: The utilization of waste plastic through extrusion-based additive manufacturing is investigated as a means to address environmental concerns. A mixed feedstock processing approach is used to develop sustainable three-dimensional printing filaments from recycled ABS blended with virgin ABS. The rheological and thermo-mechanical properties of the extruded filaments are examined, revealing the potential for the novel filament to replace commercially available ABS filaments in fabricating high-quality plastic parts.
POLYMER ENGINEERING AND SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Kui Wang, Xuefei Jin, Xiuhong He, Weijiang Huang, Qin Tian, Qiuping Fu, Wei Yan
Summary: Polymer blending has been widely used to fabricate polymeric films due to its superior properties. In this study, an aluminum phosphate-coated halloysite nanotube was fabricated and used to improve the performance of polyethylene oxide/poly(butylene adipate-co-terephthalate) blends. The mechanical and rheological properties of the films were systematically discussed.
Article
Chemistry, Physical
Azamat Slonov, Ismel Musov, Azamat Zhansitov, Zhanna Kurdanova, Kamila Shakhmurzova, Svetlana Khashirova
Summary: It has been found that PPSU blends have a single-phase structure regardless of the viscosities of the mixed polymers. Additionally, blends with smaller MFR differences exhibit higher heat resistance and stability of mechanical properties.
Article
Polymer Science
Monica Elvira Mendoza-Duarte, Ivan Alziri Estrada-Moreno, Perla Elvia Garcia-Casillas, Alejandro Vega-Rios
Summary: This study developed polymer blends based on poly(lactic acid), stiff polymer, and elongated polymer, with an emphasis on mechanical property balance. By utilizing dynamic mechanical analysis and statistical software, binary and ternary blends were studied to determine their performance, with EPS 3 showing superior properties.
Article
Materials Science, Textiles
Fabio Salvatore Palumbo, Salvatore Federico, Giovanna Pitarresi, Calogero Fiorica, Roberto Scaffaro, Andrea Maio, Emmanuel Fortunato Gulino, Gaetano Giammona
Summary: Electrospun nanofibers based on polysaccharides with aliphatic pendant tails were successfully produced using low molecular weight gellan gum derivatives, contributing to Tissue Engineering and Regenerative Medicine as well as nanomedicine drug delivery systems. Mixing gellan gum derivatives with poly vinyl alcohol (PVA) improved spinnability, and the role of alkyl chain derivatization on the processability of blended polymers was highlighted through rheological analysis.
JOURNAL OF INDUSTRIAL TEXTILES
(2022)
Article
Biotechnology & Applied Microbiology
Teresa Faddetta, Giovanni Renzone, Alberto Vassallo, Emilio Rimini, Giorgio Nasillo, Gianpiero Buscarino, Simonpietro Agnello, Mariano Licciardi, Luigi Botta, Andrea Scaloni, Antonio Palumbo Piccionello, Anna Maria Puglia, Giuseppe Gallo
Summary: This study investigated the production and characterization of membrane vesicles (MVs) in Streptomyces coelicolor M145. The MVs were found to contain various proteins and metabolites, including those involved in cell metabolism/differentiation, molecular processing/transport, and stress response. Additionally, the MVs contained a range of metabolites, such as antibiotics, vitamins, amino acids, and components of carbon metabolism. These findings provide valuable insights into the biogenesis and functions of MVs.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2022)
Article
Chemistry, Physical
Roberto Scaffaro, Maria Clara Citarrella, Emmanuel Fortunato Gulino, Marco Morreale
Summary: An innovative green composite was produced by adding Hedysarum coronarium flour to a starch-based biodegradable polymer. The influence of filler content on processability, morphology, and mechanical properties of the composites was investigated. The results showed that FDM samples had higher mechanical properties compared to CM ones, and the filler effectively acted as reinforcement in the composites.
Article
Polymer Science
Giulia Infurna, Luigi Botta, Marco Maniscalco, Elisabetta Morici, Giuseppe Caputo, Salvatore Marullo, Francesca D'Anna, Nadka Tz Dintcheva
Summary: In this study, agricultural waste was recovered and converted into biofuel through a pyrolysis process, and the solid residual fraction was used as a filler for biocomposite production. The properties of the filler were characterized, and the performance of the biocomposites was evaluated using various analysis methods.
Article
Biochemistry & Molecular Biology
Giulia Fredi, Andrea Dorigato, Alessandro Dussin, Eleftheria Xanthopoulou, Dimitrios N. Bikiaris, Luigi Botta, Vincenzo Fiore, Alessandro Pegoretti
Summary: This work investigates the properties of PLA and PEF blends and addresses the issues of inadequate UV-shielding and gas-barrier properties of PLA as a flexible packaging film. The study shows that adding a commercial compatibilizer/chain extender, Joncryl ADR 4468 (J), can improve the blend's mechanical, UV-shielding, and gas-barrier properties, making it promising for packaging applications.
Article
Polymer Science
Roberto Scaffaro, Maria Clara Citarrella, Marco Morreale
Summary: The 3D printability of green composites is gaining importance and interest as it provides a way to utilize agricultural waste for the production of affordable and environmentally friendly biodegradable polymer-based composites. In this study, a green composite was prepared by combining a starch-based biodegradable polymer (Mater-Bi-(R), MB) with a filler obtained from tomato plant waste. Different processing parameters and filler amounts were investigated, and the samples were characterized for rheological, morphological, and mechanical properties. It was found that the composite had good processability and satisfactory mechanical performance, with the mechanical properties exceeding the predicted values from the Halpin-Tsai model.
Article
Polymer Science
Francesco Paolo La Mantia, Marilena Baiamonte, Stefania Santangelo, Roberto Scaffaro, Maria Chiara Mistretta
Summary: The photo-oxidation of polypropylene was studied at different temperatures and in different environments. The oxidation reactions were found to be strongly influenced by the availability of oxygen and the temperature. The degradation was fastest in air, followed by sea water and distilled water. Increasing the temperature significantly increased the degradation kinetics due to decreased oxygen solubility.
Article
Polymer Science
Roberto Scaffaro, Michele Gammino, Andrea Maio
Summary: Growing environmental concerns drive the development of efficient materials for environmental remediation. Polymer-based hierarchical structures, achieved by combining starting components and processing techniques, are emerging in the field of materials science. In this study, graphene oxide (GO) and/or carbon nanotubes (CNTs) were integrated into poly (vinyl fluoride-co-hexafluoropropylene) (PVDF-co-HFP) and electrospun into water treatment mats. The nanocomposites with 2 wt% GO and CNTs exhibited the best performance, with high flux, rejection, flux recovery ratio, antifouling properties, and reusability, attributed to the unique microstructure provided by the self-assembled network of GO and CNTs.
Article
Engineering, Environmental
Roberto Scaffaro, Emmanuel Fortunato Gulino, Maria Clara Citarrella
Summary: The study prepared porous fibrous membranes based on biodegradable polymers for wastewater treatment. The structure and porosity of the membranes were controlled by varying the polymer type and processing method. The results showed that the porous structure of the membranes significantly influenced their mechanical performance, wettability, and oil sorption capacity.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2023)
Article
Biochemistry & Molecular Biology
Roberto Scaffaro, Luca Settanni, Emmanuel Fortunato Gulino
Summary: This study compares the techniques of electrospinning (ES) and solution blow spinning (SBS) for the production of nanofibrous membranes. The effects of liquid or solid molecules addition on morphology, structural properties, and release behavior were evaluated. The results show that both ES and SBS can achieve controlled release for up to 500 hours, with SBS allowing for slower release kinetics for liquid molecules and faster release kinetics for solid molecules.
Review
Polymer Science
Rubie Mavelil-Sam, Elizabeth Mariya Ouseph, Marco Morreale, Roberto Scaffaro, Sabu Thomas
Summary: The versatility and hydrophilicity of carrageenan have been extensively studied and explored. However, its limited hydrophobicity restricts its applications in fields such as food packaging. Researchers worldwide are investigating methods to enhance the hydrophobic nature of carrageenan-based bionanocomposites without compromising their functionalities. This review comprehensively discusses various techniques, including surface modifications and changes in chemical structure, to modulate the hydrophobicity of carrageenan composites.
Article
Polymer Science
F. Carfi Pavia, V. Brucato, M. C. Mistretta, L. Botta, F. P. La Mantia
Summary: By using biodegradable polymers instead of fossil-derived polymers in certain applications, the release of carbon dioxide into the environment can be greatly reduced. In this study, prototypes of aquaculture trays were produced using the biodegradable polymer Mater-Bi-(R) through injection molding. Characterization tests revealed that the polymer used has suitable properties for producing tools for aquaculture applications. Additionally, the samples underwent a biodegradation test in conditions that simulate the marine environment, showing a relatively low degradation rate for the thick molded samples.
Article
Polymer Science
Francesco Paolo La Mantia, Roberto Scaffaro, Marilena Baiamonte, Manuela Ceraulo, Maria Chiara Mistretta
Summary: Polymers are influenced by various environmental stresses during processing and usage, resulting in changes in their chemical and molecular structure as well as morphology. The main observed changes are reduction in molecular weight and the formation of double bonds and oxygenated groups due to degradation. These changes dramatically modify the macroscopic properties, especially in the recycling process of post-consumer plastic products.
Article
Pharmacology & Pharmacy
Emanuela Fabiola Craparo, Salvatore Emanuele Drago, Gabriella Costabile, Maria Ferraro, Elisabetta Pace, Roberto Scaffaro, Francesca Ungaro, Gennara Cavallaro
Summary: Inhaled corticosteroids are commonly used to manage chronic lung diseases, but their anti-inflammatory effects are not always satisfactory. This study attempted to develop inhalable beclomethasone dipropionate (BDP) dry powders using polymeric particles. The BDP-loaded particles showed improved anti-inflammatory effects and were highly biocompatible in vitro.
Article
Materials Science, Characterization & Testing
Maria Chiara Mistretta, Vincenzo Titone, Francesco Paolo La Mantia, Valeria Pellitteri, Luigi Botta
Summary: This study assessed the use of a nanofiller for the mechanical recycling of multilayer barrier plastic bags. The results showed that the addition of GnPs improved the properties of the polymer composites, providing increased stiffness without a significant reduction in ductility. The performance of the nanocomposites was influenced by the conditions in which the plastic bags were used.
Article
Polymer Science
Mustafa Kalay, Abidin Esidir, Mahmut Ruzi, N. Burak Kiremitler, Mustafa Serdar Onses
Summary: This study proposes stable and addressable polymer PUFs, utilizing a cross-linkable polymer system, which demonstrates high stochastic characteristics and low-cost production. The performance of the polymer features is evaluated through various analyses, and direct image authentication is achieved using feature matching algorithms.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Jingyu Jin, Guoqiang Lu, Jun Nie, Xiaoqun Zhu
Summary: Photopolymerization technology is limited in the fields of food packaging and biomedicine due to the high migration of small molecules from photoinitiators. In this study, a polymerizable 2-vinyl thioxanthone (ETX) was synthesized to improve the migration stability of photoinitiators. Macromolecular photoinitiators (PPI1, PPI2) were also prepared to further reduce migration. The results showed that the ETX/TEOA system had higher initiation performance and PPI2 displayed favorable initiation ability. Additionally, the migration of ETX, PPI1, and PPI2 in photocured film was significantly reduced. These low-migration photoinitiators have potential applications in the fields of food packaging and biological materials.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Weijie Li, Jun Nie, Yingying Zhao, Xiaoqun Zhu
Summary: This study focuses on the development of high-performance, low-migration photoinitiators. A polymerizable photoinitiator (VBP) was synthesized by introducing an ethylene group into benzophenone, and three different molecular weight single-component photoinitiators (PVBN1-3) were synthesized based on VBP. The results show that these new photoinitiators have stronger absorption ability compared to benzophenone and significantly reduce the migration of initiators and co-initiators, addressing the safety concerns caused by migration.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Seira Morimune-Moriya, Yuki Iwahashi, Mitsuru Nakamura, Daisuke Ogawa, Keiji Nakamura
Summary: This study investigates the effect of plasma treatment on carbon nanotubes (CNTs) and the structure/properties of polyimide (PI) nanocomposites with ultra-low content of CNTs. The results show that plasma treatment introduces isocyanate groups on the surface of CNTs and enhances the interfacial interaction between PI and treated CNTs. This leads to a significant improvement in the mechanical properties of the nanocomposites, with even a small addition of treated CNTs showing a substantial increase in Young's modulus, tensile strength and toughness.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Yuanlong Li, Chaojie Chen, Guoqing Cui, Li Liu, Chao Zhou, Guangfeng Wu
Summary: In this study, a novel ion-conducting hydrogel was fabricated using a straightforward approach. The hydrogel showed excellent tensile properties and high toughness due to physical interactions and covalent binding. Additionally, the introduction of hydroxyethyl cellulose and lithium chloride improved the biocompatibility, mechanical properties, electrical conductivity, and frost resistance of the hydrogel, demonstrating its potential for cold climate applications.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Dengwei Yan, Jinxian Yang, Xuejun Pan, Xiaozheng Duan, Lianwei Li, Mo Zhu
Summary: The influence of backbone length on grafting efficiency during the graft-onto reaction process was investigated. It was found that the polydispersity effect of backbone length does not affect the final grafting efficiency, indicating that the local dynamics of chain segments dominate the graft-onto process.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Zhaoyi Luo, Xianjie Pan, Fanqi Liu, Quanxi Yi, Yanning Zeng, Yunhua Chen, Chaoyang Wang
Summary: This study provides a method to prepare high-performance epoxy materials with good malleability and thermal stability. The materials have self-healing and welding capabilities, thanks to the addition of specific chemical bonds and network structures. They exhibit mechanical properties comparable to commercial epoxy resins and show great potential for sustainable industrial development.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Chaoji Xiong, Hao Wang, Lihua Deng, Kun Liang, Chunhua Wu, Wei Wu, Qian Chen
Summary: In this study, four polyamides were synthesized and their adsorption performances for Hg2+ in aqueous systems were investigated. The polyamides exhibited high adsorption capacities and excellent reusability, with the involvement of sulfur, nitrogen, and oxygen in the chemical adsorption process of Hg2+.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Siim Laanesoo, Olivier Bonjour, Rauno Sedrik, Iris Tamsalu, Patric Jannasch, Lauri Vares
Summary: The insertion of rigid aliphatic or aromatic building blocks in polymer structures is an effective way to synthesize high -Tg polymer materials. In this study, a series of isosorbide-2-aryl carboxylate-5-methacrylate monomers (ArIMAs) were synthesized by functionalizing isosorbide 5-methacrylate with various aromatic lignin-inspired esters. These monomers were polymerized to obtain high molecular-weight poly(aryl carboxylate isosorbide methacrylates) (PArIMAs). The resulting polymers showed high glass transition temperatures and thermal stability, making them suitable for use as high-performance plastics and coatings.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Yuqian Wu, Weijie Xu, Jianliang Li, Zhangfeng Zhong, Liqing Huang, Shengke Li, Huaping Tan
Summary: This study investigates the improvement of degradation and drug release characteristics of dynamic Schiff base-mediated natural polysaccharide hydrogels using tannic acid (TA), leading to enhanced stability and functionality.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Xi Zhang, Xiangli Kong, Xin Zhou, Yiyan Gao, Yibo Sun, Guanghui Gao, Wei Liu, Kai Shi
Summary: Conductive hydrogels have great development prospects in flexible strain sensors, but long-term direct contact with human skin can cause bacterial infection. A hydrogel with antibacterial, biocompatibility, and toughness was designed and manufactured using a freeze-thaw method. The hydrogel maintains tensile properties and fatigue resistance at low temperatures and is resistant to bacteria. Therefore, hydrogel sensors can be used to monitor human movements.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Wei Zhang, Jiangang Yu, Mingyang Wu, Rui Li, Anqiang Zhang, Yaling Lin
Summary: In this study, polyacrylamide containing quaternary ammonium salts (PAM-X) were synthesized and found to effectively inhibit soil-borne pathogenic fungi while maintaining the balance of microbial population in soil. PAM-X also showed low toxicity to earthworms and fish, providing a new method for the prevention and control of soil-borne fungal diseases.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Jiawen He, Haojie Yu, Li Wang, Jian Yang, Yanhui Zhang, Wenbing Huang, Chenguang Ouyang
Summary: This review discusses the use of polymeric hydrogels for atmospheric water harvesting (AWH), including the mechanism of water sorption, fabrication methods, and strategies for optimizing the structure of hydrogels. The extended applications of hygroscopic photothermal hydrogels, such as agricultural irrigation and dehumidification, are also explored. The challenges and prospects of using polymeric hydrogels for AWH are summarized.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Polymer Science
Ying Du, Shuaishuai Lu, Yuanna Sun, Qingshan Li, Xinhai He
Summary: This study introduces a method to improve the performance of hydrogels by incorporating proline, resulting in hydrogels with excellent stretchability, high conductivity, and long-term stability. The hydrogel remains flexible and conductive even at ultra-low temperatures.
EUROPEAN POLYMER JOURNAL
(2024)
