Article
Materials Science, Composites
Hossein Kazemi, Frej Mighri, Keun Wan Park, Slim Frikha, Denis Rodrigue
Summary: In this study, the hybrid effect of nanocellulose/carbon nanotube (NCC/CNT) reinforcement on natural rubber (NR) nanocomposites was investigated. It was found that the presence of NCC improved the dispersion of the hybrid filler, while the presence of CNT increased the interaction between the filler and the matrix. The use of a NCC/CNT hybrid system resulted in superior mechanical properties, dynamic mechanical properties, and thermal conductivity compared to using each material separately.
POLYMER COMPOSITES
(2022)
Article
Polymer Science
Kriengsak Damampai, Skulrat Pichaiyut, Klaus Werner Stoeckelhuber, Amit Das, Charoen Nakason
Summary: Enhancement of ENR properties by incorporating CNT-CCB hybrid fillers leads to improved mechanical strength, thermal stability, and electrical conductivity.
Article
Polymer Science
Mehmet Kodal, Nazli Yazici Cakir, Rumeysa Yildirim, Nursel Karakaya, Guralp Ozkoc
Summary: This study investigates the influence of multi-walled carbon nanotubes on the performance of rubber nanocomposites and finds that adding multi-walled carbon nanotubes can improve the thermal conductivity and hardness of the composites.
Article
Polymer Science
Skulrat Pichaiyut, Wasuthon Kitisavetjit, Charoen Nakason
Summary: Nanocomposites of epoxidized natural rubber filled with graphite, carbon nanotubes, and CNTs/GP hybrid fillers were prepared and characterized. The addition of these fillers resulted in changes in the cure curves, torque differences, and other properties of the vulcanizates. FTIR analysis confirmed the increased chemical interaction between ENR molecules and the fillers' surfaces. The use of CNTs-GP hybrid fillers led to further improvements in properties, such as higher curing curves and electrical conductivity. These results suggest the potential applications of these hybrid nanocomposites in various fields.
JOURNAL OF POLYMER RESEARCH
(2023)
Article
Polymer Science
Nicoleta-Violeta Stanciu, Felicia Stan, Ionut-Laurentiu Sandu, Catalin Fetecau, Adriana-Madalina Turcanu
Summary: This paper investigated the material properties of polypropylene (PP) nanocomposites filled with multi-walled carbon nanotubes (MWCNTs) and found that the addition of MWCNTs affects the melt shear viscosity, specific volume, thermal conductivity, mechanical properties, and electrical properties of the materials. The study revealed that increasing MWCNT loading results in higher melt shear viscosity, lower specific volume, thermal conductivity below 0.35 W/m·K, and the nanocomposite becomes electrically conductive at 3 wt.% loading.
Article
Materials Science, Composites
Hossein Kazemi, Frej Mighri, Keun Wan Park, Slim Frikha, Denis Rodrigue
Summary: In this study, a novel hybrid system containing lignin and cellulose nanocrystals (CNC) is developed to reinforce natural rubber (NR) and produce high-performance biocomposites. The addition of lignin to NR has a negligible reinforcing effect compared to conventional fillers, such as carbon black (CB). On the other hand, adding only 7.5 parts per hundred rubber (phr) of CNC to lignin/NR compounds significantly improves the mechanical properties of the composites.
POLYMER COMPOSITES
(2022)
Article
Polymer Science
Yashoda Ramyajith Somarathna, Lelwala Manage Achira Nuwan, Yohan Chandika Yasanga Sudusingha, Don Vidura Dilshan Mallikaarachchi, Susantha Siriwardena
Summary: This study investigates the replacement of carbon black (CB) with waste mica (WM) in natural rubber (NR) vulcanizates. The results show that NR/WM vulcanizates have slower curing rates, better scorch safety, lower skid and rolling resistance compared to NR/CB vulcanizates. However, the poor interfacial adhesions and uneven filler distribution in NR hinder the establishment of equal rubber-filler interactions as in CB-filled NR. Nevertheless, NR/WM vulcanizates show potential to replace CB at low filler loadings, with improved heat build-up and insulation properties.
IRANIAN POLYMER JOURNAL
(2022)
Article
Polymer Science
Patricia Castano-Rivera, Isabel Calle-Holguin, Johanna Castano, Gustavo Cabrera-Barjas, Karen Galvez-Garrido, Eduardo Troncoso-Ortega
Summary: By studying the application of organoclay nanoparticles in rubber blends, it was found that 5-7 phr of organoclay can significantly improve the abrasion resistance of nanocomposites. The good dispersion of organoclay in the rubber matrix and its compatibility with chloroprene rubber play a key role in enhancing the properties.
Article
Agricultural Engineering
Apinya Krainoi, Kanoktip Boonkerd
Summary: In this study, a natural rubber (NR) filled with a hybrid filler of carbon nanotube (CNT) and cellulose nanofiller (CNF) was prepared by the masterbatch latex mixing method. The mechanical, electrical, and strain-sensitive properties of the hybrid NR nanocomposites were investigated. The results showed that there was interaction between CNT and CNF, leading to optimal dispersion and electrical conductivity in the CNT-CNF1:0.05 hybrid. However, at high CNF proportions, agglomeration of CNT and CNF particles occurred, but a stable and flexible conducting network was formed in the hybrid NR nanocomposites, enhancing their strain-sensitive property for sensor applications.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Polymer Science
Hossein Kazemi, Maxime Parot, Tatjana Stevanovic, Frej Mighri, Denis Rodrigue
Summary: Lignocellulosic fillers are attracting attention as biofillers due to their low cost, availability, and eco-friendly nature. This study investigates the effect of lignin, cellulose, and black spruce cellulosic pulps on the properties of natural rubber, and the results suggest that different L/C ratios can achieve a balance between mechanical properties.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Minna Poikelispaa, Alexandra Shakun, Essi Sarlin
Summary: The study found that partially replacing carbon black with nanodiamonds can significantly improve the tensile strength, modulus, and wear resistance of natural rubber-butadiene rubber compound. The hybrid filler system improves filler dispersion and positively impacts tire properties.
APPLIED SCIENCES-BASEL
(2021)
Article
Materials Science, Composites
Bozhen Wu, Yuhao Yang, Kaiqi Zhu, Shengyang Liu, Renrong Liu, Honghao Zhu, Yulin Li
Summary: This study proposes a method of using commercial carbon materials and polymer melt blending to construct conductive pathways, addressing the issues of high cost, inability to mass-produce, and poor dispersion of nanocarbon materials. This approach enables the fabrication of low-cost and robust polymer composites with efficient thermal management and electromagnetic radiation protection.
POLYMER COMPOSITES
(2023)
Article
Thermodynamics
JinHyeok Cha, Kei Hasegawa, Jeonyoon Lee, Itai Y. Stein, Asuka Miura, Suguru Noda, Junichiro Shiomi, Shohei Chiashi, Brian L. Wardle, Shigeo Maruyama
Summary: The study demonstrates that thermal diffusivity and conductivity of SWCNT forests increase when the volume fraction exceeds 17%, indicating that some SWCNTs not serving as thermal paths at lower volume fractions start connecting with others. Moreover, the inferred thermal conductivity of individual SWCNTs also enhances with the increase of volume fraction.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Editorial Material
Agricultural Engineering
Nor Anizah Mohamad Aini, Nadras Othman, M. Hazwan Hussin, Kannika Sahakaro, Nabil Hayeemasae
Summary: This study investigated the effects of two different types of compatibilizers on the properties of carbon black/lignin-filled NR/BR composites. The presence of ENR improved the dispersion of the filler and increased the modulus, while the use of LBR enhanced the processability and flexibility of the composites.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Polymer Science
Yoliria Vazquez-Martinez, Claudia A. Ramirez-Herrera, Margarita Mondragon, Alex Elias-Zuniga, Luis E. Elizalde
Summary: This study investigates the effect of single-walled carbon nanotubes (SWCNTs) on the cross-linking of natural rubber (NR) using organic peroxides. The vulcanization time is reduced and the degree of cross-linking is increased in the presence of SWCNTs. Furthermore, the mechanical performance of the NR-SWCNTs composites is significantly improved. Raman spectroscopy studies suggest a reaction between the nanotube walls and free radicals generated during the vulcanization process.