Article
Polymer Science
Manuela Walteros-Leon, Monica Lucia Alvarez-Lainez
Summary: Natural rubber latex (NRL) is a complex colloidal system that can be concentrated using hydroxyethyl cellulose (HEC) and sodium dodecyl sulphate (SDS), which alter its colloidal and rheological properties. SDS plays a key role in enhancing the creaming process and improving the electrostatic stability of the colloidal system.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Jaehyun Jung, Henry A. Sodano
Summary: The study demonstrates that using modified aramid nanofibers and graphene oxides as hybrid fillers in rubber compounds significantly improves mechanical properties and abrasion resistance, while reducing rolling resistance by 21.8% without compromising wet grip performance.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Shanshan Wang, Yaseen Muhammad, Canyun Mao, Susu Xing, Wei Xiong, Hao Jiang, Jing Li
Summary: Using TA-TPC-modified rubber improved the bonding between rubber powder and SBSMA, enhancing the thermal stability of the composite material. The addition of TA-TPC increased the storage modulus and loss modulus of SBSMA, decreased creep compliance, improved recovery rate, and reduced phase segregation.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Biyou Peng, Jiawen Li, Jintian Wu, Ning Chen, Gang Chen
Summary: In this study, composite scaffolds with different pore structures were successfully fabricated using FDM technology and characterized using SEM and dynamic thermomechanical analyzer. The introduction of PLA and HA increased the modulus of the material, enhancing its FDM processing. Biocompatibility and mineralization ability of the scaffolds were investigated, showing good bone formation and mineralization ability with reduced concentrations of Ca2+ and PO4(3-) in simulated body fluid over time. Biotoxicity test confirmed excellent biocompatibility of the scaffold.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Li Chen, Xiujiang Pang, Yi Kang
Summary: Both graphene and carbon nanotubes can improve the crosslinking density, reduce rolling resistance, and wet-skid resistance of NR composites. Compared to CNTs, graphene degrades manufacturing safety and cure rate, but exhibits a higher reinforcing effect in terms of tensile strength, modulus, and hardness. Additionally, graphene/NR composites show better aging resistance than CNTs/NR. On the other hand, CNTs can improve manufacturing safety and cure rate, maintain higher tear strength, and provide better tensile fatigue and wear resistance, as well as lowering rolling resistance while maintaining higher wet-skid resistance in comparison to graphene.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Konstantin V. Pochivalov, Alexander N. Shilov, Tatyana N. Lebedeva, Anna N. Ilyasova, Roman Yu. Golovanov, Andrey V. Basko, Yaroslav V. Kudryavtsev
Summary: A detailed study of butyl rubber-based vibration damping formulations reveals high performance achieved through limited solubility of the plasticizer. Chalk is identified as the best inorganic filler for strong adhesion. A new environmentally friendly and cost-effective binding agent formulation is proposed as a replacement for materials containing aromatic compounds, offering comparable or superior properties.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Ya Liu, Yanjin Guan, Xin Ye, Xiping Li, Jun Lin
Summary: Lightweight carbon fiber reinforced polypropylene composite foams with high-performance electromagnetic interference shielding materials were fabricated using microcellular injection molding technology. The introduction of foaming process enhanced the electrical conductivity and EMI shielding properties, achieving the highest EMI shielding effectiveness value through the MIM technology.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Construction & Building Technology
Rida Alwi Assaggaf, Mohammed Maslehuddin, Salah Uthman Al-Dulaija, Mohammed A. Al-Osta, Mohammed Rizwan Ali, Mohammed Shameem
Summary: This paper investigates the effect of different treatment methods on crumb rubber concrete (CRC) and finds that cement coating is the most effective method in improving its mechanical properties. The cement coating significantly enhances CRC's compressive and flexural strength while also reducing costs.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Polymer Science
Samuel R. Swan, Houlei Gan, Claudia Creighton, James M. Griffin, Bekim Gashi, Russell J. Varley
Summary: This study investigates the impact of molecular fortifiers on the mechanical and thermal properties of a highly aromatic and rigid epoxy monomer. The fortifiers are found to improve the processability and cure conversion of the material. They also reduce moisture ingress and increase modulus, but with limited improvement in toughness.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Yuanrui Shao, Ruijie Han, Xudong Quan, Kangmin Niu
Summary: This paper explores the potential of direct ink writing of soft materials in 3D printing, focusing on the rheological properties of silicone rubber inks and their impact on the printing process. The study provides a foundation for parameter configuration and ink viscosity adjustment, while also offering new insights into filament diameter adjustment through investigating the die swell ratio of nano-silica-reinforced silicone rubber inks.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Vineet Kumar, Anuj Kumar, Md Najib Alam, Sang-Shin Park
Summary: Graphite nanoplatelet (GNP) flakes with different surface area were analyzed for their impact on the properties of room-temperature vulcanized silicone rubber (RTV-SR) nanocomposites. The results showed that GNP flakes with larger surface area enhanced the mechanical performance of the nanocomposites.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Lixin Song, Qian Zhang, Yongsheng Hao, Fei Cong, Weihan Chi, Yongchao Li, Zhe Liu, Ying Shi
Summary: A series of PB-g-PS graft copolymers with different core-shell ratios were synthesized using emulsion polymerization. The blends of these copolymers with PPO and PS exhibited high toughness and excellent processability, which can be attributed to the uniform dispersion of rubber particles and the change in deformation mechanism.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Review
Chemistry, Physical
Ehsan Rostami-Tapeh-Esmaeil, Denis Rodrigue
Summary: Rubber foams are widely used in various fields due to their interesting properties such as high flexibility, elasticity, deformability, resistance to abrasion, and energy absorption. The morphological, physical, and mechanical properties of rubber foams are influenced by parameters related to formulation and processing conditions. This review provides an overview of these properties and discusses future developments.
Article
Polymer Science
Pamela Sierra Garcia, Juliana Aristeia de Lima, Carlos Henrique Scuracchio, Sandra Andrea Cruz
Summary: This study investigated the effect of adding devulcanized rubbers on recycled polypropylene, showing that devulcanized rubbers improved the mechanical properties of PPr and enhanced its adhesion to rubber, impacting the fracture mechanisms of PPr.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Materials Science, Composites
M. M. Abdel-Aziz, Mona K. Attia
Summary: The effects of gamma-irradiation on the mechanical properties of EPDM/HSBR blends were studied. The blend with 80/20 EPDM/HSBR exhibited the best mechanical properties. The addition of silane coupling agent improved the mechanical and thermal properties of the gamma-irradiated EPDM/HSBR blend. Synergistic effects were observed by incorporating fumed silica and a coagent in the 80/20 EPDM/HSBR nanocomposite irradiated to 150 kGy. The morphology of the blends was analyzed using scanning electron microscope to interpret the mechanical properties.
JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS
(2022)