Article
Polymer Science
Guofeng Wu, Liang Lei, Yijian Wu, Fei Yu, Jianjun Li, Hui He
Summary: Polypropylene (PP)/sepiolite nanocomposites were prepared using melt blending technique. The effects of nano-sepiolite content on the properties of PP/sepiolite nanocomposites were investigated. The addition of organic modified sepiolites (OSep) improved the mechanical and thermal properties of PP matrix.
Review
Engineering, Multidisciplinary
Zahid Iqbal Khan, Unsia Habib, Zurina Binti Mohamad, Abdul Razak Bin Rahmat, Nur Amira Sahirah Binti Abdullah
Summary: Sepiolite is a valuable filler in thermoplastic composites, showing superior properties compared to other fillers. Its strengthening ability and bio-compatibility have stimulated research and investment in nanocomposite materials. The properties of sepiolite-loaded thermoplastic polymer composites depend on various factors like filler content, matrix, interaction with the bond, and size of sepiolite particles. Further development and assessment are necessary to expand its utilization in different applications.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Noor Ul Ain, Farha Masood, Minaal Noor, Muhammad Farooq
Summary: This study demonstrates the potential use of nanocomposite hydrogels as wound dressing materials for the treatment of multidrug-resistant infected wounds. The physical, structural, mechanical, and antibacterial properties of the nanocomposite hydrogels were evaluated, showing good moisture retention capacities and antibacterial effects.
APPLIED CLAY SCIENCE
(2022)
Article
Food Science & Technology
Teresa Fernandez-Menendez, David Garcia-Lopez, Antonio Arguelles, Ana Fernandez, Jaime Vina
Summary: The use of new PET and nanosepiolite materials in innovative packaging has shown to improve packaging performance, reduce permeability, and decrease food contamination by microorganisms. Additionally, although the nanocomposites are more brittle, they are harder, allowing for potential weight reduction in packaging which is important industrially and environmentally.
Article
Polymer Science
Shafi Ur Rehman, Sana Javaid, Muhammad Shahid, Iftikhar Hussain Gul, Badar Rashid, Caroline R. Szczepanski, Muhammad Naveed, Sabrina J. Curley
Summary: Polystyrene/sepiolite clay nanocomposites were successfully prepared via melt extrusion technique with VTES as the compatibilizer and cross-linking agent. The addition of sepiolite clay improved the thermal stability, mechanical properties, and flame retardancy of the nanocomposites.
Article
Chemistry, Multidisciplinary
Marie N. Barshutina, Valentyn S. Volkov, Aleksey V. Arsenin, Dmitriy I. Yakubovsky, Alexander V. Melezhik, Alexander N. Blokhin, Alexey G. Tkachev, Alexander V. Lopachev, Vladislav A. Kondrashov
Summary: The paper presents a cost-effective and scalable approach to produce highly homogeneous graphene and CNT-based silicone composites with superior electrical and mechanical properties. The study investigates the influence of processing parameters, graphene/CNT ratio, and hybrid filler loading, finding optimal parameters for superior composite properties. The graphene/CNT hybrid system shows a synergistic effect that prevents aggregation and facilitates dispersion, contributing to the superior properties of the hybrid composites.
Article
Materials Science, Composites
Alperen Kaymakci
Summary: This study examines the effects of sepiolite clay nanofibers on the physical, mechanical, and thermal properties of wood-plastic nanocomposites. The results indicate that increasing the content of sepiolite nanofibers can enhance the flexural and tensile properties of the nanocomposites, as well as improve their thickness swelling and water absorption properties.
JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS
(2022)
Article
Polymer Science
M. Kh Mohammadzad, G. Pircheraghi, H. Sharifi
Summary: The HDPE/sepiolite nanocomposite separators prepared using the TIPS method exhibit high thermal stability and electrolyte wettability, improving the performance of lithium-ion batteries. The modification of sepiolite nanofibers with VTES enhances dispersion and interaction within the HDPE matrix, leading to superior properties of the separator.
EXPRESS POLYMER LETTERS
(2021)
Article
Chemistry, Physical
Xinrong Huang, Manqing Ge, Huiyan Wang, Han Liang, Na Meng, Ninglin Zhou
Summary: Functionalization of polydimethylsiloxane nanocomposites with advanced nanostructure materials can lead to significant improvements in mechanical and antimicrobial properties. This research presents a creative and easy technique for incorporating silver nanoparticles-lecithin modified montmorillonite into PDMS nanocomposites for antibacterial applications.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Environmental Sciences
Muhammed Mustapha Ibrahim, Liming Guo, Fengying Wu, Dongming Liu, Hongxue Zhang, Shuangquan Zou, Shihe Xing, Yanling Mao
Summary: Agricultural soils are a significant source of anthropogenic CO2 emissions, and finding sustainable materials to capture CO2 in these soils is crucial. This study produced biochar-based MgO and sepiolite-nanocomposites that showed potential for CO2 capture, leading to reduced CO2 emissions and increased organic carbon mineralization.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Physical
Xinlei Xie, Yulei Wang, Ming Hao, Penji Yan, Jinsheng Liang, Dongxu Wang, Hao Li, Fei Wang
Summary: In this study, highly dispersed tungsten disulfide (WS2) nanosheets were synthesized using sepiolite nanofibers as a carrier, through a cost-effective hydrothermal treatment and calcination under a H-2/N-2 atmosphere. The WS2 nanosheets exhibited improved dispersion and photocatalytic efficiency compared to pure WS2, due to the unique support provided by the sepiolite and the favorable bonding at the WS2/sepiolite interface. This work provides a novel strategy for the low-cost preparation of high-quality two-dimensional materials via assembly on mineral materials.
APPLIED CLAY SCIENCE
(2022)
Article
Polymer Science
Ingrid A. Goncalves, Jairo Barauna, Ivanei F. Pinheiro, Mayara P. Calderaro, Ana R. Morales
Summary: The properties of nanocomposites are influenced by the interaction between filler and matrix, thus surface modification of the filler is necessary. This study evaluated the effects of sepiolite surface modification on PBAT-based nanocomposites. Two organic modifiers, OI and APTES, were used to modify the nanofillers. OI showed higher treatment efficiency and better results than APTES, leading to improved mechanical properties of the nanocomposites.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Analytical
Karina Jeronimo, Vasileios Koutsos, Rebecca Cheung, Enrico Mastropaolo
Summary: The study focuses on the fabrication of piezoelectric nanocomposites by adding ZnO fillers into a flexible polymer matrix, and investigates the impact of filler geometry and size on material properties. The NF piezocomposites exhibit higher piezoelectric response under pressure compared to the NP piezocomposites.
Article
Materials Science, Composites
Menghui Zhang, Liang Shao, Tao Zhang, Yanlong Yang, Xiaoqiang Li, Jianzhong Ma
Summary: This work presents the production of PDMS/MWCNT composites with multilayer structures using the glucose template method. The properties of these composites have been investigated, showing that the 5-layer PDMS/MWCNT composites achieve excellent attenuation in the X-band and maintain high stability even after repeated bending.
POLYMER COMPOSITES
(2023)
Article
Chemistry, Multidisciplinary
Alessandro Di Pierro, Bohayra Mortazavi, Hamidreza Noori, Timon Rabczuk, Alberto Fina
Summary: The study investigated the effective thermal conductivity of polymer nanocomposites with graphene and borophene as nanofillers using multi-scale modeling. The results showed that improving the bonding between fillers and polymer can significantly enhance the thermal conductivity. Despite lower thermal conductivity, borophene has the potential to enhance thermal conductivity in polymer nanocomposites.
Article
Polymer Science
Yuanzhang Jiang, Xuyi Wang, Yanting Han, Dakai Gong, Yingchun Gu, Lin Tan
Summary: In this study, FeCl3 and poly(acrylic acid) (PAA) were doped into waterborne polyurethanes (WPUs) to create multifunctional materials with self-healing and antimicrobial properties. WPU/Fe/PAA-5.5, containing 5.5 wt % PAA, exhibited excellent mechanical properties, strong self-healing capabilities, and an impressive antimicrobial rate of over 90%. These supramolecular films were also highly recyclable through hot-pressing.
Article
Polymer Science
Longyu Tian, Min Wang, Guangming Liao, Baoliang Liu, Sujuan Zhang, Yucheng Sun, Zhen Meng, Jintao Zhang, Zaijun Lu
Summary: Two kinds of benzoxazine monomers were synthesized and used to prepare polybenzoxazine anion exchange membranes (AEMs) with quaternary ammonium functionalization. The LQPBZ AEM exhibited better ion conductivity and alkaline stability.
Article
Polymer Science
Claire A. Lemarchand
Summary: This study investigates the shock behavior of three different polymers through molecular dynamics simulations. The results reveal specificities in the shock behavior of polymers, including deviations from the linear relation between shock velocity and particle velocity, as well as differences in shear stress relaxation behind the shock front. It is found that the deviation of the Hugoniot locus is related to the change in the relative contribution of bonding and non-bonding potential energies, while polymers with higher glass transition temperatures exhibit slower shear stress relaxation.
Article
Polymer Science
Zengquan Liu, Xiaochun Yin, He Zhang, Shuo Gao, Qinglin Kuang, Yanhong Feng
Summary: A powder solid-state extension (PSSE) technology was proposed to address the high melt viscosity issue of UHMWPE. By uniaxial extension and sintering in the solid state, a highly self-reinforced material was prepared. X-ray diffraction and scattering techniques were used to study the structural evolution during the PSSE process, and a solid-phase induced transformation model was established.
Article
Polymer Science
Zhike Li, Anyu Luo, Rui Zhou, Xin Li, Haiyan Li
Summary: A novel high temperature resistance IL@SiO2 nanocapsules were successfully prepared and their friction and wear properties in PA6 composites were studied. The addition of IL@SiO2 nanocapsules reduced the friction coefficient and wear rate without affecting the mechanical properties of PA6. The synergy between the IL core and SiO2 wall in the nanocapsules improved the self-lubricating performance of the PA6 composites.
Article
Polymer Science
Xin Liu, Xuhong Guo, Qi Liao
Summary: In this study, an algorithm for accurately estimating viscosity is developed using molecular dynamics simulations and the Green-Kubo formula. This algorithm can be applied to complex systems with long correlations, such as macromolecular and biological simulation systems.
Article
Polymer Science
Hao Pu, Yun-Lei Hou, Jing -Zhou Chen, Dong -Lin Zhao
Summary: The use of modified graphene improves the interfacial adherence of carbon fibers to epoxy resin, resulting in enhanced interfacial and bending properties of CF and matrix in CF/EP composites, as well as increased interlaminar shear strength and flexural strength.
Article
Polymer Science
Wei-Chung Ke, Jin-Wei Lin, Manohar Reddy Busireddy, Yueh-Hsing Lee, Jiun-Tai Chen, Chain-Shu Hsu
Summary: This study introduces a crosslinkable monomer, TAIC, to synthesize three crosslinked polyimide films, which exhibit improved thermal, mechanical, and dielectric properties. The introduction of TAIC enhances the tensile strength, reduces the dielectric constant and dielectric loss, and decreases the coefficient of thermal expansion of the polyimide films.
Article
Polymer Science
Alex Kwasi Kumi, Ruiling Fan, Ye Chen, Yumei Zhang
Summary: The difference in leaching of amylopectin from cellulose/amylopectin/1-butyl-3-methylimidazolium chloride ([Bmim][Cl]) blends during regeneration in water and aqueous ethanol has been studied. Molecular dynamics simulations showed that the dissolution and regeneration mechanisms of amylopectin in [Bmim][Cl] are similar to cellulose in ionic liquids. Water regeneration leads to weak electrostatic interactions, resulting in high leaching of amylopectin. In contrast, ethanol-water interactions enhance electrostatic interactions among amylopectin chains, limiting amylopectin leaching in aqueous ethanol.
Article
Polymer Science
Xi Zeng, Junwei Zhou, Junbiao Peng, Chunsheng Zhang, Danling Wang, Yihu Song, Qiang Zheng
Summary: This study utilizes an oligomer deep eutectic solvent (DES) based on polyethylene glycol to regulate the vulcanization kinetics of rubber. The results show that the DES can accelerate vulcanization at low temperatures without affecting the crosslinking density and Mullins effect.
Article
Polymer Science
Qianqian Yue, Yongfei Peng, Xingjian Liu, Aihua He, Huarong Nie
Summary: The addition of metal deactivators can effectively suppress the aging of TBIR, prolong its lifespan, and have no negative effects on its physical and processing properties. These research findings are of great importance for improving the stability and aging resistance of polymers.
Article
Polymer Science
J. Gomez-Caturla, J. Ivorra-Martinez, R. Tejada-Oliveros, V Moreno, D. Garcia-Garcia, R. Balart
Summary: This work focuses on the development of environmentally friendly PLA formulations by using different esters derived from geraniol as plasticizers. The results show that these esters have good compatibility with PLA, and they can effectively enhance the elongation and plasticity of PLA, reduce its glass transition temperature, and slightly improve its water absorption capabilities.
Article
Polymer Science
Dandan Li, Zhaohui Lu, Zhao Ke, Ke Xu, Fengna Dai, Youhai Yu, Guangtao Qian, Chunhai Chen
Summary: In this study, cross-linked PI aerogel membranes with low dielectric constant and high moisture resistance were prepared by co-polymerization and scraping coating technology. The incorporation of fluorinated blocks and benzimidazole ring structures resulted in novel PI aerogel membranes with fascinating dielectric properties and outstanding moisture resistance.
Article
Polymer Science
Zhaoyang Chu, Qing Zhang, Haihua Luo, Han Zhou, Fapei Zhang, Wei Chen, Wenhua Zhang
Summary: Multi-physical fields solution processing strategy is a universal and facile method for preparing various conjugated polymer films and high-performance devices. In this study, we employed a combined microfluidic flow and ultrasonication strategy (FU) for processing CP solutions, and found a pronounced synergetic effect in promoting the pre-ordering of chains in solution. The conformation order and anisotropy of the solution were revealed through various characterizations. A non-classical nucleation model for polymer crystallization in non-equilibrium solution processing was confirmed. The roles of microfluidic flow and ultrasonication in chain aggregation and crystallization were addressed through multi-physical simulations. Compared to pristine solutions, the FU strategy showed improved solution anisotropy and crystallization kinetics, resulting in higher crystallinity in films and increased mobilities in OFET devices. The FU processing strategy provides a universal approach for regulating chain conformation and aggregation in conjugated polymer solutions.
