Article
Polymer Science
Luis A. Chavez, Paulina Ibave, Md Sahid Hassan, Samuel E. Hall-Sanchez, Kazi Md Masum Billah, Alba Leyva, Cory Marquez, David Espalin, Sabrina Torres, Thomas Robison, Yirong Lin
Summary: This study demonstrates a method to fabricate and engineer HPP using a desktop SLS printer by blending a high-performance polymer with a commercial low-temperature polymer and implementing post-processing heat treatments. The treated blends exhibited significantly improved mechanical properties and thermal resistance compared to PA-12 alone.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
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)
Review
Polymer Science
Euphrasie Jasinski, Veronique Bounor-Legare, Aurelie Taguet, Emmanuel Beyou
Summary: The study investigates the influence of halloysite nanotubes as carriers of flame retardant systems on the fire retardancy performances of polymer-based composites, aiming for long-term aging properties.
POLYMER DEGRADATION AND STABILITY
(2021)
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
Materials Science, Multidisciplinary
Eleonore Mathis, Marie-Laure Michon, Claude Billaud, Caroll Vergelati, Nigel Clarke, Jacques Jestin, Didier R. Long
Summary: The present study proposes a quantitative approach for predicting and controlling the final morphology of thermosets toughened by high-T-g thermoplastics. By controlling the degree of curing and the T-g of the blend and both phases during phase separation, the desired sizes can be obtained. This research is of great importance for designing blends with tailored morphologies.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Polymer Science
Munju Goh, Haeun Shin, Chae Bin Kim
Summary: This study presents a simple method of improving bond exchange rates by incorporating fillers into a model vitrimer, thereby accelerating thermally activated bond exchange reactions. The addition of hexagonal boron nitride effectively reduces activation energy and relaxation time, showing promising results for enhancing the macroscopic properties of vitrimers.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Natalia Cano Murillo, Media Ghasem Zadeh Khorasani, Dorothee Silbernagl, Marc Benjamin Hahn, Vasile-Dan Hodoroaba, Heinz Sturm
Summary: Thermoplastic modified thermosets with added nanofillers, such as nanosized boehmite particles, have shown improved fracture toughness. A nanomechanical study of two composite systems revealed that a polycarbonate phase loaded with boehmite nanoparticles significantly enhanced the mechanical properties of the epoxy resin phase, surpassing the rule of mixture.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Kayla R. Sweet, Joseph F. Stanzione
Summary: Polymer networks can be customized using dual-functional monomers, resulting in unique thermal, mechanical properties such as enhanced stiffness and toughness. This approach allows for the creation of tailored polymer materials with excellent performance characteristics.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Romina Esmaeilzade, Farhad Sharif, Reza Rashedi, Abdolkamal Dordi Nejad
Summary: The study focused on the thermal treatment of waste polyethylene wax and its incorporation into high-density polyethylene (HDPE). The results showed that wax significantly affects the properties of the blend, but remains miscible within a certain range of content.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Kairui Wang, Lei Chen, Yun Gao, Dengchao Jiang, Yiwu Quan, Shanzhi Yan
Summary: In this study, a polypropylene random copolymer (rPP) and polypropylene/ethylene-propylene-diene monomer graft copolymer (gPP) were added to improve the poor low-temperature tensile properties of polypropylene (PP). The results showed that the addition of rPP reduced the size of PP spherulites and improved the interfacial cohesion of the PP/POE blend, resulting in better tensile properties and melt flow rate. The effects of injection molding process parameters on the mechanical properties and phase morphology of rPP-modified PP/POE blends were also investigated.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Blanca Maria Lekube, Christoph Burgstaller
Summary: The study found significant differences in structure and properties among different blends with polylactid acid. Polyolefin based blends showed a high negative deviation from the rule of mixtures, while blends of PET and PS exhibited properties close to the rule of mixtures. Changes in glass transition temperatures indicated interactions between materials, with the PS/PLA pair showing the strongest interactions.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Materials Science, Composites
Hendrik Moellers, Carsten Schmidt, Dieter Meiners
Summary: This study examined a spray binder and preforms made with the binder and non-crimp carbon fiber textiles. The spray process was analyzed and compared to other binder systems through T-peel and three point flexural tests. While the spray binder demonstrated higher peel strength, its flexural strength was lower than that of powder binder systems.
POLYMER COMPOSITES
(2023)
Article
Polymer Science
Yuhao Liu, Ying Lin, Yunsong Wang, Kangning Wu, Bin Cao, Liming Wang
Summary: In this study, 3-aminopropyltriethoxysilane was used as an intermediate to prepare silicone prepolymer, which was self-assembled in the cycloaliphatic epoxy resin (CEP) to improve both toughness and hydrophobic properties. The tensile strength and static contact angle of CEP were enhanced significantly when containing 10 phr of silicone prepolymer, mainly influenced by the distribution of the dispersed phase and surface tension.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Shin-Ki Hong, Seong Hwan Lee, Jin Ah Han, Myung Sang Ahn, Hoyyul Park, Se Won Han, Dae Ho Lee, Seunggun Yu
Summary: The study developed polypropylene ternary blends with higher performance, exhibiting better impact resistance at low and room temperatures compared to XLPE, and remaining stable at high temperatures, potentially serving as high-performance insulators for power cables.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Chulmin Youn, Hyeon Jung Gwak, Younghwan Bae, Dokun Kim, Byeong Jin Yeang, Song Jun Doh, Sang Young Yeo
Summary: This study investigated the effect of thermal drawing process on the mechanical properties of PEI filaments. The results showed that optimizing the draw ratio, process temperature, and cooling temperature can lead to PEI filaments with excellent mechanical properties.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Ildar I. Salakhov, Nadim M. Shaidullin, Anatoly E. Chalykh, Mikhail A. Matsko, Alexey V. Shapagin, Ayrat Z. Batyrshin, Georgiy A. Shandryuk, Ilya E. Nifant'ev
Summary: The low-temperature properties of HDPE, LDPE, LLDPE, and their blends were studied, with parameters such as relative elongation at break and Izod impact strength used for assessing frost resistance properties. LLDPE showed higher elongation at break and impact strength compared to LDPE, and the addition of LLDPE terpolymer to HDPE improved flow properties and tensile properties of the blend at -45 degrees C. Changes in low-temperature properties as a function of molecular weight, crystallinity, and branch content were determined for HDPE, LLDPE, and their blends, with DMA data proving the resulting dependences.
Article
Polymer Science
Elena Platonova, Islam Chechenov, Alexander Pavlov, Vitaliy Solodilov, Egor Afanasyev, Alexey Shapagin, Alexander Polezhaev
Summary: A series of thermally remendable and recyclable polyurethanes crosslinked via reversible furan-maleimide Diels-Alder reaction showed strong dependency of Young modulus on BMI content, allowing for materials with varying elasticity. The DA and retro-DA reactions between furan and maleimide were investigated by various analytical techniques, demonstrating high strengths and recyclability in at least five reprocessing cycles.
Article
Polymer Science
Alexey V. Shapagin, Natalia A. Gladkikh, Arkadiy A. Poteryaev, Valentina Yu. Stepanenko, Uliana V. Nikulova, Ramil R. Khasbiullin
Summary: The development of universal finishing compositions for fibers of various natures is crucial for polymer composite materials science. By adjusting the concentration of diaminesilane, the surface free energy of the composition can be effectively regulated, making it applicable to composite materials with different surface tensions.
Article
Energy & Fuels
V. V. Makarova, S. N. Gorbacheva, A. Kostyuk, S. Antonov, Yu Yu Borisova, D. N. Borisov, M. R. Yakubov
Summary: This work is focused on evaluating the thermal conductivity of composites based on asphaltenes and paraffin as a phase change material. The study demonstrates that modifying asphaltenes and controlling their content in the composite materials can significantly impact the crystallinity and thermal conductivity of the system.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Materials Science, Ceramics
G. Yu Yurkov, D. A. Pankratov, Yu. A. Koksharov, Ye. A. Ovtchenkov, A. V. Semenov, R. A. Korokhin, G. I. Shcherbakova, L. V. Gorobinskiy, E. A. Burakova, A. V. Korolkov, D. S. Ryzhenko, V. I. Solodilov
Summary: In this study, composite materials consisting of a ceramic matrix and metal iron nanoparticles were prepared by sintering iron (II) oxalate and polycarbosilane. The chemical composition of the material can be controlled by the sintering process. It was found that the size of iron-containing particles changes after calcination, especially under air atmosphere where the particles decrease in size.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
S. V. Larin, V. V. Makarova, S. N. Gorbacheva, M. R. Yakubov, S. V. Antonov, N. I. Borzdun, A. D. Glova, V. M. Nazarychev, A. A. Gurtovenko, S. V. Lyulin
Summary: In this study, polymer additive P3HT was added to paraffin-carbon nanoparticle blends to improve their sedimentation stability, reduce the size of nanoparticle aggregates, and increase the viscosity of the blends. The presence of P3HT had almost no effect on the thermophysical properties of the blends, preserving their critical properties for heat storage applications.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Biochemistry & Molecular Biology
Svetlana N. Gorbacheva, Yulia Yu. Borisova, Veronika V. Makarova, Sergey V. Antonov, Dmitry N. Borisov, Makhmut R. Yakubov
Summary: This study investigates the use of low-cost carbon fillers to enhance the thermal conductivity of paraffin. It is found that the addition of modified asphaltenes significantly increases the thermal conductivity of paraffin by up to 72%.
Article
Polymer Science
Irina O. Plyusnina, Nikita Yu. Budylin, Alexey V. Shapagin
Summary: This study constructed a phase diagram for a model polycaprolactone-epoxy oligomer (PCL-DGEBA) system using differential scanning calorimetry (DSC), refractometry, and optical interferometry. The Flory-Huggins interaction parameters of PCL-DGEBA mixtures were calculated, and the structure of PCL-DGEBA mixtures with different PCL content was analyzed. The diffusion coefficients and activation energies of the viscous flow PCL and self-diffusion of DGEBA were determined. The obtained data will be used to develop a quantitative method for predicting the phase structure of cured systems.
Article
Polymer Science
Svetlana Rogovina, Lubov Zhorina, Anastasia Yakhina, Alexey Shapagin, Alexey Iordanskii, Alexander Berlin
Summary: In this study, binary composites of polylactide (PLA)-chitosan and poly(3-hydroxybutyrate) (PHB)-chitosan were fabricated and their functional characteristics, such as hydrolysis resistance, biodegradation, and ion sorption behavior were investigated. The stability of PHB-chitosan composites was higher in HCl aqueous solutions, while PLA-chitosan composites showed higher biodegradation in soil. The sorption capacity of PHB-chitosan composites for Fe3+ ions was higher than that of PLA-chitosan composites. The findings suggest potential applications of these biodegradable composites with improved functional properties.
Article
Polymer Science
Dmitriy A. Bazhanov, Arkadiy A. Poteryaev, Alexey V. Shapagin, Anna A. Shcherbina
Summary: This article discusses the potential use of thermoplastic polymers in photopolymer compositions for SLA and DLP. The diffusion and solubility of uncured systems based on tert-butyl acrylate (tBA) and ethylene-vinyl acetate copolymers (EVA) or low-density polyethylene (LDPE) were studied. The phase diagrams, interdiffusion and self-diffusion coefficients were obtained to analyze the compatibility and performance characteristics of the materials.
Article
Polymer Science
Tuyara V. Petrova, Ilya V. Tretyakov, Alexey V. Kireynov, Alexey V. Shapagin, Nikita Yu. Budylin, Olga V. Alexeeva, Betal Z. Beshtoev, Vitaliy I. Solodilov, Gleb Yu. Yurkov, Alexander Al. Berlin
Summary: This study investigates the modification of epoxy resin with polysulfone and active diluent furfuryl glycidyl ether. The results show that heterogeneous structures are formed during the curing process, depending on the concentration of the active diluent and the type of hardener. The physico-mechanical properties of the hybrid matrices are determined by the formed structures, with thermoplastic-enriched matrix-interpenetrating structures providing the highest resistance to crack propagation.
Article
Biochemistry & Molecular Biology
Sergey O. Ilyin, Anna V. Kostyuk, Tatyana S. Anokhina, Viktoria Y. Melekhina, Danila S. Bakhtin, Sergey V. Antonov, Alexey V. Volkov
Summary: The weak point of ionic liquids is their high viscosity, limiting the maximum polymer concentration in the forming solutions. This study demonstrates that dimethyl sulfoxide (DMSO) can act as a nominal co-solvent to improve the processing of cellulose into a nanofiltration membrane. The nature of non-solvents affects the mass transfer direction and interdiffusion rate, influencing the nanofiltration characteristics of the obtained membranes.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Polymer Science
Ilya E. Nifant'ev, Alexander A. Vinogradov, Alexey A. Vinogradov, Mikhail E. Minyaev, Vladimir V. Bagrov, Ildar I. Salakhov, Nadim M. Shaidullin, Anatoly E. Chalykh, Alexey V. Shapagin, Pavel V. Ivchenko
Summary: Sandwich SiMe2-bridged ansa-complexes of zirconium, containing heterocycle-fused eta 5-cyclopentadienyls, catalyze ethylene homopolymerization and ethylene/oct-1-ene copolymerization in the presence of triisobutylaluminum (TIBA) without MAO and perfluoroaryl borate activators. The catalytic activities of the complexes are higher than the benchmark bis(eta 5-fluorenyl) complex 1. The addition of MMAO-12 increases the catalytic activities and oct-1-ene incorporation. The resulting copolymers show good physico-mechanical characteristics and can be blended with high density polyethylene (HDPE) to obtain materials with high impact strength and frost resistance.
Article
Polymer Science
Dilyara F. Sadykova, Nikita Yu. Budylin, Uliana V. Nikulova, Aleksey V. Shapagin, Elena M. Gotlib
Summary: The influence of rice hull ash and wollastonite on the migration problem of plasticizer EDOS from PVC has been studied. It was found that the introduction of dispersed fillers reduces the migration of plasticizer, while the introduction of environmentally neutral rice hull ash improves the stability and environmental friendliness of the system. Wollastonite also improves the technological properties of the system.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Polymer Science
Ilya V. Tretyakov, Tuyara V. Petrova, Aleksey V. Kireynov, Roman A. Korokhin, Elena O. Platonova, Olga V. Alexeeva, Yulia A. Gorbatkina, Vitaliy I. Solodilov, Gleb Yu. Yurkov, Alexander Al. Berlin
Summary: This work aims to investigate the impact resistance of epoxy oligomer matrices (EO) modified with polysulfone (PSU) or polyethersulfone (PES) and their glass fiber reinforced plastics (GFRP) under low-velocity impact conditions. The study found that the fracture energy of GFRP depends on the concentration and type of modifying polymer. The introduction of PSU into EO resulted in an increase in strength and fracture energy for modified matrices and GFRP, while the opposite effect was observed for PES modification. The study also established correlations between fracture energy and strength of EO + PES matrices and GFRP.
