Article
Materials Science, Composites
Jan Sher Khan, Rizwan Akram, Mozaffar Hussain, Saima Rafique, Farrukh Bashir Kayani, Anis Ur Rehman
Summary: Composite fibers of bismuth telluride with polyaniline and polyvinylpyrrolidone were synthesized via electrospinning. The morphology and surface morphology of the fibers were studied using scanning electron microscopy. The X-ray diffraction and Fourier transform infrared spectroscopy confirmed the increase in crystalline phase and revealed the influence of functional groups. The thermogravimetric analysis and diffuse reflectance spectroscopy showed the thermal stability and decreased bandgap of the composite fibers.
POLYMER COMPOSITES
(2023)
Article
Polymer Science
Ana Carolina Salgado de Oliveira, Taline Amorim Santos, Julio Cesar Ugucioni, Roney Alves da Rocha, Soraia Vilela Borges
Summary: Chitosan and polyaniline were studied for use as conductive and flexible films in this article. By casting with the addition of glycerol and glutaraldehyde, the films were obtained with improved electrical conductivity and chemical structure.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Xiaoyan Nie, Ziying Hu, Tianliang Xiao, Li Li, Jiao Jin, Kesong Liu, Zhaoyue Liu
Summary: This study reports a light-powered polystyrene sulfonate anion (PSS) doped polypyrrole (PPy) conducting polymer membrane, which exhibits cationic selectivity and light-responsive surface-charge-governed ion transport. By applying asymmetric light irradiation on one side of the membrane, an inherent electric field drives cationic transport against the concentration gradient, demonstrating an ion-pumping effect.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Polymer Science
Farzin Azimpour-Shishevan, M. A. Mohtadi-Bonab, Hamit Akbulut
Summary: This study investigates the effects of carbon nanotubes (CNTs) and graphene platelets (GPLs) on the characteristics of carbon/basalt fiber reinforced intra-ply hybrid composites. The results show that the addition of carbon-based nanoparticles improves the properties of the composites, and the response of the composites is directly proportional to the addition ratio of the carbon-based nanoparticles.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Polymer Science
You Shu, Qionglin Luo, Mingliang Wang, Yuejun Ouyang, Hongwei Lin, Liping Sheng, Shengpei Su
Summary: This study demonstrated that the introduction of L-PVAc into PLA can significantly improve the mechanical and thermal properties of the composites. Furthermore, at a L-PVAc content of 20.0 wt%, the impact strength, elongation at break, glass transition temperature, melting temperature, and degree of crystallinity of the composites were significantly increased compared to pure PLA.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Junxiao Li, Lijun Qian, Wang Xi, Yong Qiu, Wei Tang, Shanzhe Li
Summary: The alloying synergistic flame retardant effect of using PEI and ADP for PA6 was investigated, which can provide PA6 composites with excellent mechanical properties and flame retardancy simultaneously. Adding PEI with PA6 can form PEI-PA6 alloy with nice homogeneous phase, which endows PA6 composites with excellent mechanical properties. The addition of ADP can increase the LOI value and flame retardant rating, reduce the HRR and THR, and increase the char residue rate, showing an excellent flame retardant synergistic effect. ADP works together with PEI to increase the quenching effect in the gas phase and promote thermal stability, while also increasing the char yield in the condensed phase. The alloying flame retardant method using ADP/PEI-PA6 can endow PA6 with better flame retardancy and more excellent mechanical properties.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Ben Liu, Jiacheng Xu, Honglai Xue, Zhongjun Shu, Guoguang Xu, Hongxiang Ou, Yunxuan Weng
Summary: By adding PF@ADP to LDPE, the flame retardancy and mechanical properties of the composite material can be significantly improved, including increasing the limiting oxygen index and UL-94 grade, enhancing the tensile strength and elongation at break, and aiding in reducing the smoke emission of LDPE.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Electrochemistry
Monika Wysocka-Zolopa, Aleksandra Brzozka, Elzbieta Zambrzycka-Szelewa, Urszula Klekotka, Beata Kalska-Szostko, Krzysztof Winkler
Summary: A nanocomposite of Fe3O4 nanoparticles and polypyrrole was synthesized through a new chemical polymerization method using sonication. Fe3O4 nanoparticles functioned as both a pyrrole oxidant and a component in the composite material. Two types of nanocomposites were obtained: Fe3O4/PPy nanocomposites, where magnetite nanoparticles were dispersed in a PPy matrix, and Fe3O4-aggregates@PPy nanocomposites, where aggregates of magnetite nanoparticles were surrounded by a layer of polymeric phase. The electrochemical properties of the nanocomposites were investigated, and the composite of Fe3O4 and PPy displayed reversible electrochemical behavior upon oxidation, similar in both aqueous solution and organic solvents such as acetonitrile and dichloromethane.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2023)
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
Energy & Fuels
Yanrong Zhu, Jude O. Iroh, Ramakrishnan Rajagopolan, Aydin Aykanat, Richard Vaia
Summary: This study systematically varied the feed composition to synthesize polyaniline (PANi) and polyaniline-clay nanocomposites (PACN), and analyzed their thermal properties. The results showed that increasing the oxidant concentration decreased the thermal stability and melting point of PANi, while the reinforcement of PANi with clay increased its thermal stability and melting point. The optimal thermal stability and melting point of PANi were achieved by adding about 0.1 wt% of the oxidant.
Article
Polymer Science
Asif Raza, Amara Nasir, Mehwish Tahir, Shaista Taimur, Tariq Yasin, Muhammad Nadeem
Summary: Polyaniline grafted conducting nanohybrids were successfully synthesized by emulsion graft polymerization, with sepiolite as an ideal substrate showing excellent thermal stability and electrical conductivity. These nanohybrids exhibited outstanding EMI shielding effectiveness in the X-band frequency range.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Yufeng Sun, Yapeng Wang, Wenlong Mu, Zipeng Zheng, Bin Yang, Jinwei Wang, Runkai Zhang, Kaiyuan Zhou, Liang Chen, Jilai Ying, Xinping Liu, Guangyin Xu
Summary: This study investigated the use of micro-nano rice husks (MNRH) fibers compounded with polylactic acid (PLA) to produce 3D-printed filaments. The addition of silane coupling agents improved the surface quality and enhanced the dispersing performance of the MNRH fibers in the composites. The treated composites exhibited improved thermal stability, crystallinity, and water resistance. Furthermore, the mechanical properties of the composites, including tensile strength and bending strength, were significantly enhanced. The findings suggest that the treated composites have great potential for use as environmentally friendly alternative materials in automotive interiors.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Zhi-Gang Yuan, Mohamadou Al Hassan, Zhi-Cheng Wang, Jun-Yi Wang, Jun Wang, Mehdi Derradji, Wen-Bin Liu
Summary: Nanoparticles were mixed with an epoxy resin to create a nanocomposite with improved mechanical and thermal properties. The addition of CeO2 nanoparticles resulted in a significant increase in tensile strength, flexural strength, and elongation of the composites, as well as enhanced thermal stability. Scanning electron microscope analysis revealed the fracture surface morphology of the composites.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Materials Science, Characterization & Testing
Chunrui Lu, Wenlong Ma, Shuhong Ba, Dongxing Zhang
Summary: This study introduced a method for calculating resin content using thermogravimetric analysis (TGA) for carbon fiber/ poly (ether ether ketone) (CF/PEEK) composites. The TGA curves and DTG curves were divided into four stages, and the resin content was accurately obtained from the transitional stage and stable stage. Results compared with other methods showed that the TGA method was suitable for resin fraction calculation with slight difference.
Article
Polymer Science
Karen Barrios Tarazona, Gilberto Ramos-Rivera, David Suleiman
Summary: This study focuses on the synthesis of sulfonated amine block copolymers and their impact on the morphology and transport properties of polymeric membranes for chemical protective clothing (CPC). The copolymers were prepared using specific monomers and sulfonated by chemical grafting. Various characterization techniques were used to analyze the changes in the membranes. The results show that the synthesized copolymers lacked phase segregation due to low sulfonation, leading to a low water/DMMP selectivity. Blended membranes with sulfonated poly(styrene-isobutylene-styrene) (SIBS) improved breathability and achieved the desired water vapor transport rate limit.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Materials Science, Composites
P. Jayakrishnan, K. K. Jithin, K. Meera, Manammel T. Ramesan
Summary: The present study investigates the properties of nanocomposites of Poly (Anthranilic acid-co-indole)/(PANA-Co-PIN) and magnetite nanoparticles (Fe3O4) prepared via one-step polymerization method. The results demonstrate that the addition of nanoparticles enhances the thermal stability, electrical conductivity, dielectric properties, and ammonia gas sensing performance of the composites, making them promising candidates for nanoelectronic devices.
JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS
(2023)
Article
Polymer Science
K. Parvathi, M. T. Ramesan
Summary: This study demonstrates the fabrication and characterization of zinc ferrite nanofiller inserted chlorinated natural rubber composites. The addition of zinc ferrite significantly enhances the flame retardancy, glass transition temperature, electrical conductivity, and mechanical properties of the composites. The results suggest that the fabricated composites have potential applications in lightweight and highly durable flexible electronic devices.
Article
Chemistry, Applied
S. Suvarna, K. Furhan, K. Parvathi, M. T. Ramesan
Summary: Poly(vinyl chloride) (PVC) nanocomposites with different contents of copper alumina (Cu-Al2O3) nanoparticles were prepared and their structural, thermal, electrical, contact angle, and mechanical properties were thoroughly examined. The presence of Cu-Al2O3 nanoparticles in the PVC matrix was confirmed using Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD) analysis showed a higher crystallinity of the nanocomposites. SEM images revealed a change in the surface morphology of PVC due to the inclusion of nanofillers. DSC analysis showed an increase in the glass transition temperature with an increase in nanoparticle loading. The inclusion of nanofillers also improved the electrical properties, with the composite containing 7 wt.% sample showing the maximum conductivity and dielectric constant. The mechanical properties of the PVC nanocomposites, including modulus, tensile strength, hardness, and impact properties, were significantly enhanced by the reinforcement of nanoparticles. The highest mechanical and electrical properties were observed for the 7 wt.% Cu-Al2O3 loaded nanocomposite. Contact angle measurements indicated that the addition of Cu-Al2O3 nanofillers increased the hydrophobicity of the polymer matrix.
JOURNAL OF VINYL & ADDITIVE TECHNOLOGY
(2023)
Article
Polymer Science
Furhan, M. T. Ramesan
Summary: The use of ZnO-reinforced poly(para-aminophenol) (PpAP) as a novel nanocomposite material has shown superior optical properties and electrical conductivities, making it highly desirable for optoelectronic device fabrication. Experimental characterization of the material's structure and properties reveals that the addition of ZnO nanoparticles affects the optical bandgap energy, refractive index, and dielectric properties of PpAP.
Article
Engineering, Environmental
K. Meera, M. T. Ramesan
Summary: In this study, a biopolymer blend of carboxymethyl chitosan (CMCS) and polyvinyl alcohol (PVA) reinforced with boehmite nanoparticles (AlOOH) was prepared using a green method. The addition of nanoparticles significantly improved the thermal stability, glass transition temperature, melting temperature, conductivity, and dielectric properties of the blend nanocomposite films. The tensile strength and hardness were also enhanced while the elongation at break decreased. These improved properties make the blend nanocomposite films suitable for flexible electronic and charge storage devices.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2023)
Article
Materials Science, Composites
M. T. Ramesan, S. Suvarna
Summary: This study investigates the properties of chlorinated polyethylene/copper alumina (CPE/Cu-Al2O3) nanocomposites, including structure, morphology, thermal, conductivity, dielectric, and mechanical properties. The addition of Cu-Al2O3 nanoparticles improves the mechanical and electrical properties of the polymer composites.
PROGRESS IN RUBBER PLASTICS AND RECYCLING TECHNOLOGY
(2023)
Article
Polymer Science
Krishnanivas Parvathi, Manammel Thankappan Ramesan
Summary: The effect of titanium dioxide (TiO2) on the performance of chlorinated natural rubber/polyindole (Cl-NR/PIN) blend nanocomposites was systematically studied. The successful incorporation of nanoparticles in the blend system was confirmed by Fourier-transform infrared spectra. UV analysis showed increased absorption spectra of the nanocomposite compared to the pure blend. The X-ray diffraction, transmission electron microscope, and thermal analysis results demonstrated the presence of TiO2 nanostructure in the blend, uniform dispersion of TiO2, increased thermal stability, and improved conductivity and dielectric properties.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Polymer Science
K. Parvathi, M. T. Ramesan
Summary: Elastomer nanocomposites based on chlorinated natural rubber/polyindole blend with different loadings of zinc oxide nanoparticles were studied for their structural, morphological, thermal and electrical properties. The uniform dispersion of ZnO nanoparticles in the blend system was confirmed by UV-Vis spectra. Chemical interaction between ZnO and the blend was observed from additional band in the FT-IR spectra. The XRD, FE-SEM, and HR-TEM images confirmed the uniform dispersion of ZnO in the blend. The addition of ZnO improved the thermal stability, glass transition temperature, electrical conductivity, and tensile properties of the blend nanocomposites. The composites with 5 wt.% ZnO loading showed maximum dielectric constant and AC conductivity, suggesting optimal interfacial contact.
JOURNAL OF POLYMER RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
S. Sankar, Ajith George, M. T. Ramesan
Summary: Copper alumina reinforced poly(aniline-co-indole) nanocomposites were prepared and characterized. The addition of Cu-Al2O3 decreased the bandgap energy and increased the glass transition temperatures. The nanocomposites also showed improved electrical conductivity.
MATERIALS SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Composites
K. Meera, Manammel Thankappan Ramesan
Summary: Biopolymer nanocomposites derived from carboxymethyl chitosan and boehmite were prepared via an environmentally friendly method. The nanocomposites showed improved thermal, mechanical, electric, and dielectric properties, making them a potential green alternative for flexible electronic and charge storage devices.
POLYMER COMPOSITES
(2023)
Article
Chemistry, Multidisciplinary
S. Suvarna, Furhan, M. T. Ramesan
Summary: Copper alumina (Cu-Al2O3) has significant impacts on the mechanical, thermal, electrical properties of polymer matrix. This study focuses on the performance of chlorinated polyethylene (CPE)/poly(vinyl chloride) (PVC) blend nanocomposites with different nano-Cu-Al2O3 contents, and investigates the effects of nanofillers on mechanical properties and electrical nature.
RESEARCH ON CHEMICAL INTERMEDIATES
(2023)
Article
Polymer Science
K. Meera, K. Arun, M. T. Ramesan
Summary: This work presents the development of a bio-based polymer blend, PVA/CG, embedded with boehmite nanoparticles to enhance its structural, thermal, mechanical, and electrical properties. The presence of boehmite in the blend was confirmed through FTIR and XRD analysis. SEM images showed uniform dispersion of boehmite at 5 wt%. The addition of boehmite increased the thermal stability and electrical conductivity of the blend, while slightly decreasing the glass transition temperature. Tensile strength and hardness improved with the incorporation of boehmite, making the PVA/CG/boehmite films a potential substitute for flexible electronic and electrochemical devices.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Inorganic & Nuclear
Furhan, R. Gopika, Meenakshi Verma, M. T. Ramesan
Summary: The study investigates the impact of nickel oxide (NiO) nanoparticles on the properties of poly(diphenylamine) (PDPA). The successful polymerization of diphenylamine with NiO nanoparticles is confirmed by FTIR studies. PDPA/NiO nanocomposites exhibit enhanced crystallinity and uniform dispersion of nanoparticles within the polymer matrix, as observed by XRD, SEM, and HR-TEM. The addition of NiO nanoparticles improves the dielectric and electrical properties of PDPA, as well as its gas-sensing performance towards ammonia.
JOURNAL OF CLUSTER SCIENCE
(2023)
Article
Polymer Science
T. P. Sameela, Rohith Sathian, K. Meera, Meenakshi Verma, M. T. Ramesan
Summary: In this study, PVAc containing boehmite nanoparticles was synthesized using an emulsion polymerization strategy. The addition of boehmite changed the optical, thermal, and mechanical properties of PVAc, making it suitable for fabricating optoelectronic devices and EMI shielding materials.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2023)
Article
Energy & Fuels
Durga Malathi, Ajmal Koya Pulikkal, M. T. Ramesan, S. Nagarajan
Summary: Natural fiber-polymer composites are increasingly popular as an environmentally friendly and cost-effective alternative to traditional petroleum-derived materials. This study characterizes the residue from Cymbopogon nardus, a type of citronella grass, for the first time. The analysis suggests that these organic waste residues have the potential to be used as a sustainable ecological material for reinforcement in polymeric composites.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
