Article
Polymer Science
Anna Raffaela de Matos Costa, Carlos Bruno Barreto Luna, Emanuel Pereira do Nascimento, Eduardo da Silva Barbosa Ferreira, Claudia de Matos Costa, Yeda Medeiros Bastos de Almeida, Edcleide Maria Araujo
Summary: In this study, PLA/ABS blends compatibilized with SEBS-g-MA were prepared using a co-rotational twin-screw extruder. The influence of the compatibilizing agent on the properties of the blends was analyzed, including morphology, mechanical, thermal, thermomechanical, and rheological properties. The results showed that the addition of SEBS-g-MA significantly improved the impact strength of the blends. Annealing also played a role in increasing the crystallinity and heat deflection temperatures of the blends. The study suggests that the PLA/ABS/SEBS-g-MA system has potential for use in 3D-printing filaments.
Article
Polymer Science
M. G. Anagha, Tuhin Chatterjee, Francesco Picchioni, Kinsuk Naskar
Summary: The effects of electron beam radiation on thermoplastic elastomers based on SEBS/TPU and SEBS-g-MA/TPU were evaluated. Both systems showed the presence of three-dimensional cross-linked networks after irradiation. SEBS-g-MA/TPU exhibited improved tensile strength and interfacial adhesion, while SEBS/TPU showed reduced tensile strength with increased radiation dose. The blends also demonstrated improvements in thermal stability, rheological properties, and morphological characteristics.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Materials Science, Composites
Carlos Bruno Barreto Luna, Adriano Lima da Silva, Danilo Diniz Siqueira, Edson Antonio dos Santos Filho, Edcleide Maria Araujo, Emanuel Pereira do Nascimento, Ana Cristina Figueiredo de Melo Costa
Summary: In this study, magnetic and flexible nanocomposites of PA6/SEBS-MA were prepared using Ni-Zn ferrite synthesized by combustion reaction. Thermal treatment increased crystallinity, while ferrite calcination enhanced magnetic properties. The nanocomposites showed improved impact strength and elongation, retaining thermal properties of PA6.
POLYMER COMPOSITES
(2022)
Article
Polymer Science
Rogerio Massanori Sakahara, Daniel Jose da Silva, Shu Hui Wang
Summary: The rheological behavior of polymer systems based on ABS and SEBS-g-MA containing copper microparticles was studied, with polydopamine added as an interface compatibilizer to enhance adhesion between copper and polymer matrix, resulting in improved performance of the composites.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Food Science & Technology
Maria Bibi, Eric W. Cochran, Michael Forrester, Irrum Mushtaq, Kalsoom Fatima, Muhammad Ilyas Sarwar (Late), Sonia Zulfiqar
Summary: This study focuses on bionanocomposites as environmentally friendly solutions for sustainable applications. The incorporation of 2% graphene oxide (GO) in plasticized thermoplastic starch (TPS) and polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene-graft-maleic anhydride (SEBS-g-MA) matrix films is explored, and the mechanical and thermal characteristics of the films are examined. The results show that the GO incorporation enhances the mechanical strength and thermal properties of the cassava starch-based bionanocomposite films, making them promising materials for food packaging.
Article
Chemistry, Multidisciplinary
Khadidja Taleb, Salima Saidi-Besbes, Isabelle Pillin, Yves Grohens
Summary: Biocomposites based on PBS and OMt were prepared by melt blending process. Gemini surfactant-modified organoclays showed a uniform dispersion and exfoliation in the PBS matrix, leading to improved properties. Adding a small amount of PBS/OMt significantly reduced the water vapor permeability, making it a promising material for food packaging applications.
Article
Polymer Science
Beril Eker Gumus
Summary: This study investigated the effects of maleic anhydride-grafted polypropylene (MA-g-PP) loading on the mechanical and physical properties of polypropylene/glass spheres/montmorillonite nanoclay (PP/HGS/MMT) composites. Results showed that increasing MA-g-PP content increased the elastic modulus and tensile strength, but decreased impact resistance, elongation at break, density, and hardness. The structure and chemical bonds of the composites were also studied.
Article
Chemistry, Multidisciplinary
Pyoung-Chan Lee, Dongwoo Kang, Ji Taek Oh, Jae Young Seo, Donghyeok Shin, Jae-Uk Jung, Youn Ki Ko, Jin Uk Ha, Myeong-Gi Kim
Summary: In this study, polypropylene (PP) was combined with a graphene/montmorillonite hybrid (MMT-G) to create a nanocomposite material with reduced moisture absorption. The modified nanofiller showed low hydrophilicity and good compatibility with the PP matrix, resulting in improved water contact angle. The use of PP/MMT-G nanocomposites in automotive headlamp housing reduced moisture absorption and decreased weight.
Article
Multidisciplinary Sciences
Takahiro Kakuta, Yudai Baba, Tada-aki Yamagishi, Tomoki Ogoshi
Summary: Clays are multi-layered inorganic materials with thermodynamically stable structures, which makes it challenging to improve their dispersity by changing them into single layers. This study demonstrates that the use of novel intercalants capable of forming polyrotaxanes with poly(ethylene glycol) can effectively exfoliate clay, leading to enhanced properties in composite materials.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Inorganic & Nuclear
Liva Dzene, Anne-Sophie Schuller, Frederyck Tidas, Severinne Rigolet, Jocelyne Brendle, Christelle Delaite
Summary: Composite materials exhibit improved properties compared to pristine materials, especially when the filler is homogeneously dispersed in the matrix. This study suggests an innovative approach of forming a talc-like structure directly in a polymer matrix using a silanized polymer as the silicon source. Poly(ethylene glycol) methyl ether of different average molar masses (M-n = 350, 500, 750, 1900 g mol(-1)) were functionalized with (3-isocyanatopropyl)triethoxysilane and added to ethanolic solutions of magnesium nitrate. H-1-Si-29 CPMAS solid state NMR experiments revealed partial condensation of silane compounds, and FTIR analysis confirmed the presence of Si-O and Mg-O bonds, but further evidence is needed to prove the formation of the Si-O-Mg bond and the talc-like structure.
DALTON TRANSACTIONS
(2023)
Article
Polymer Science
Natalia Ferreira Braga, Hao Ding, Luyi Sun, Fabio Roberto Passador
Summary: The research focused on the impact of different amounts and functionalization of MWCNTs on PTT/PTT-g-MA/ABS based nanocomposites, revealing that functionalized MWCNTs can enhance the barrier properties of the composites.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Materials Science, Composites
Ali Imran Ayten
Summary: The study showed that aramid fibers increased the energy absorption of both matrix materials, while carbon and glass fiber fabrics only increased the energy absorption of one matrix material. All reinforcement materials increased the maximum strain values of one matrix, but did not affect the maximum CAI strength values of the other matrix.
POLYMER COMPOSITES
(2021)
Article
Materials Science, Composites
Lorenzo Mirizzi, Massimiliano D'Arienzo, Roberto Nistico, Giulia Fredi, Sandra Dire, Emanuela Callone, Andrea Dorigato, Luca Giannini, Silvia Guerra, Silvia Mostoni, Barbara Di Credico, Roberto Scotti
Summary: This study develops a new filler system, Al2O3@POSS, using alumina nanoparticles and polyhedral silsesquioxane units. The goal is to improve heat transport and mechanical properties in rubber nanocomposites for potential application in tire formulations.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Composites
Parsa Dadashi, Ghodratollah Hashemi Motlagh
Summary: Impedance spectroscopy analysis was used to investigate the effect of melt mixing time on the electrical conduction mechanism of a polymer blend, and a novel approach was proposed to correlate the dispersion/distribution states of conductive nanoparticles within the phases and their impedance properties. The blend of PP/EVA with a conductive masterbatch of MWCNTs in PP-g-MA was studied. The results showed that as the mixing time of the masterbatch increased, the interconnected structures within the conductive interphase decreased, leading to a change in the dominant conduction mechanism from direct contact to electron tunneling.
JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS
(2023)
Article
Chemistry, Physical
Joanna Ludwiczak, Stanislaw Frackowiak, Karol Leluk
Summary: In this study, the properties of biodegradable polylactide (PLA) were improved by adding polybutylene adipate-co-terephthalate (PBAT) and montmorillonite (MMT) as additives. The oriented PLA/PBAT films with filler showed enhanced oxygen barrier properties and increased PLA crystallinity percentage. The addition of PBAT and MMT, along with the orientation process, resulted in decreased composite viscosity and improved synergic behavior of the selected polymer blend.
