Article
Polymer Science
Marek Poschl, Shibulal Gopi Sathi, Radek Stocek
Summary: The curing process of 50/50 blends of natural rubber (NR) and two different halogenated rubbers with a combination of conventional accelerated sulfur (CV) and bismaleimide (MF3) at 170 degrees C showed a co-curing reaction via Diels-Alder reaction. The blends cured with CVMF3 exhibited higher network strength, swelling resistance, and mechanical properties compared to those cured with only the CV system.
Article
Polymer Science
Marek Poschl, Shibulal Gopi Sathi, Radek Stocek, Ondrej Kratina
Summary: The addition of maleide F results in significantly improved curing torque and tensile properties of NR and CR blends, even retaining these properties under high-temperature aging conditions.
Article
Materials Science, Composites
Amirreza Zabihi, Mohammad Fasihi, Sajad Rasouli, Rahida Wati Sharudin
Summary: The effects of silicon carbide (SiC) as a thermal conductive filler on styrene-butadiene-rubber/butadiene rubber (SBR/BR) were investigated. The addition of SiC improved the mechanical properties, physical properties, and curing kinetics of the composite. However, particle agglomeration of SiC after a certain content reduced its performance in the composite.
POLYMER COMPOSITES
(2023)
Article
Polymer Science
Ivan Kopal, Ivan Labaj, Juliana Vrskova, Marta Harnicarova, Jan Valicek, Hakan Tozan
Summary: Modeling the flow properties of rubber blends helps predict their rheological behavior during processing and production of rubber-based products. Due to the complexity of these nonlinear processes, it is appropriate to use artificial intelligence tools for modeling. This study developed a highly efficient artificial neural network model optimized with a novel training algorithm and fast parallel computing to predict rheological test results of rubber blends under different conditions.
Article
Chemistry, Physical
Marek Poschl, Shibulal Gopi Sathi, Radek Stocek
Summary: The combination of bismaleimide and accelerated sulfur can improve the cure state and mechanical properties of the blend, while the addition of dicumyl peroxide can enhance the compression set properties.
Article
Polymer Science
Ivan Kopal, Ivan Labaj, Juliana Vrskova, Marta Harnicarova, Jan Valicek, Darina Ondrusova, Jan Krmela, Zuzana Palkova
Summary: A new generalized regression neural network model is proposed for predicting the curing characteristics of rubber blends with different carbon black filler contents cured at various temperatures. The model uses the carbon black contents and cure temperature as input parameters, and the minimum and maximum elastic torque, scorch time, and optimal cure time as output parameters. By applying a special pre-processing procedure and training algorithm, the model achieves satisfactory agreement between predicted and experimental data, even with a small dataset.
Article
Construction & Building Technology
Rayed Alyousef, Wasim Abbass, Fahid Aslam, Syed Asad Ali Gillani
Summary: Although the dumping of waste generated by industries in the environment poses a hazard, it is feasible to use waste and unused materials to manufacture high-performance concrete. By recycling these wastes in binary and ternary blends, sustainable and durable concrete mixtures can be created, resulting in the development of sustainable concrete structures.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Engineering, Chemical
Huimin Zou, Yuanrong Jing, Jieyun Tu, Xinghui Shi, Jakub Kadlcak, Zhanfu Yong, Susu Liu, Guangyong Liu
Summary: The mechanical properties and low-temperature performance of NBR/HNBR blends with different ratios were investigated, showing that increasing HNBR content decreases vulcanization torque and crosslink densities, with HNBR having a higher crosslink density than NBR. Compression sets were linearly correlated with HNBR dosage, and the low-temperature performance of the blends improved after aging in synthetic hydrocarbon hydraulic oils.
POLYMER ENGINEERING AND SCIENCE
(2021)
Article
Materials Science, Characterization & Testing
Atefeh Salimi, Foroud Abbassi-Sourki, Mohammad Karrabi, Mir Hamid Reza Ghoreishy
Summary: The study focused on the reclaiming process of EPDM using a twin-screw extruder, examining the effects of screw speed and reclaiming agent content on the properties of the blends. Results showed that the reclaiming process caused crosslinks breakage and main chain scission, with the optimal conditions identified as the highest screw speed and reclaiming agent content. The addition of reclaimed rubber impacted the curing behavior and mechanical properties of the blends, but had minimal effect on elongation at break.
Article
Polymer Science
Lingyun Lyu, Takeshi Hanada, Naohiro Yamahira, Jun Morita, Ryota Yamamoto, Ken Itomi, Takumi Adachi, Sho Kubouchi, Shin Horiuchi
Summary: The distribution of nano-sized silica in binary rubber blends is accurately characterized by STEM-EDX and STEM-HAADF tomography techniques, providing a quantitative visualization of the complex morphologies of the rubber composite materials.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Ehsan Alikhani, Mohsen Mohammadi, Mohammad Sabzi
Summary: A compound of SEBS and SR has been developed via melt blending and curing. The results show that the addition of SR increases the crosslinking and cure rate of the blends, and the presence of SEBS enhances the mechanical properties of SR. In addition, SR exhibits better thermal stability compared to SEBS.
Article
Polymer Science
Nicolas Candau, Noel Leon Albiter, Pol Roura Coll, Maria Lluisa Maspoch
Summary: By dynamically vulcanizing PLA/NR blends using waste tire rubber and an appropriate crosslinking agent content, similar properties to pure PLA blends can be achieved.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
H. H. Le, X. T. Hoang, U. Reuter, A. Janke, A. Das, S. Wiessner
Summary: A new method based on the wetting concept was developed for the quantitative description of the phase-specific localization of hybrid fillers in rubber blends. Experimental results show that the localization of fillers reaches a stationary stage during the mixing process, regardless of the mixing regime, and is related to thermodynamic driving forces.
EXPRESS POLYMER LETTERS
(2021)
Review
Polymer Science
Ehsan Rostami-Tapeh-Esmaeil, Ali Vahidifar, Elnaz Esmizadeh, Denis Rodrigue
Summary: This review focuses on the preparation and applications of rubber foams, discussing the impact of formulation and processing parameters on their properties, compiling and comparing the relevant research results.
Article
Polymer Science
Jan Kruzelak, Klaudia Hlozekova, Andrea Kvasnicakova, Katarina Tomanova, Ivan Hudec
Summary: This study focused on the investigation of the effects of filler content and curing system composition on the curing process, cross-link density, morphology, and physical-mechanical properties of rubber compounds. The results showed that the curing parameters and cross-link density of rubber compounds cured with sulfur system were different from those cured with peroxide systems. The introduction of coagents in peroxide vulcanization improved the tensile characteristics of the composites.
