Article
Materials Science, Multidisciplinary
Tao Peng, Jiarong Huang, Zhou Gong, Xiaoqing Chen, Yukun Chen
Summary: To improve the sustainability, reliability, and lifetime of polymer-based materials, researchers have successfully designed a TPV by introducing carboxylic carbon nanotubes (S-CNTs) into PLA/ENR TPV, resulting in excellent self-healing properties and great mechanical strength.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Engineering, Manufacturing
Chunhui Jia, Ping Zhang, Seyed Mohsen Seraji, Ruishi Xie, Lin Chen, Dong Liu, Ying Xiong, Hao Chen, Yingke Fu, Hailun Xu, Pingan Song
Summary: This study focuses on the preparation of high thermally conductive polymer composites with ENR/PLA blend as the polymer matrix and BN/GO nano-additive hybrid system. The composites exhibited a significant enhancement in thermal conductivity, recoverable performance, and self-healing effect, providing valuable insights for the application of polymers in electronic devices.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Materials Science, Multidisciplinary
Woo Seok Jin, Pranabesh Sahu, Sarbaranjan Paria, Seongrok Jeong, Jun Ha Jeon, Ju-ho Yun, Jae Hyeon Lee, Sung Min Park, Nam Il Kim, Jeong Seok Oh
Summary: This study examines the impact of maleic anhydride grafted ethylene-propylene-diene rubber (EPDM-g-MAH) on the processing characteristics, compatibility, and mechanical properties of EPDM/Ionomer blends. The addition of EPDM-g-MAH acts as a compatibilizing agent, improving processability and properties. Increasing the content of the compatibilizer enhances the tensile properties and creates a compatible polymer blend. The concept of ionic crosslinking between carboxyl groups in the ionomer and zinc oxide (ZnO) improves both mechanical properties and self-healing performance.
JOURNAL OF ELASTOMERS AND PLASTICS
(2023)
Article
Polymer Science
Wei Liu, Jianping Ding, Yukun Chen
Summary: This study reports a simple and effective method to prepare TPVs with mechanical strength, recyclability, and shape memory properties using a tailored cross-linker. These TPVs exhibit improved tensile behavior and shape memory ability compared to traditional TPVs.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2022)
Article
Polymer Science
Shilpi Tiwari, Dibyendu S. Bag, Mayank Dwivedi
Summary: A novel self-healing binary thermoplastic elastomeric blend of Zn-ionomer and SBS was developed and characterized, showing improved healing efficiency with higher SBS content and heat energy. The interaction between the two materials, confirmed by FTIR and SEM results, contributed to the enhanced properties of the blend.
POLYMER INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Caitlan E. Ayala, Rocio L. Perez, John K. Mathaga, Aanesa Watson, Tristan Evans, Isiah M. Warner
Summary: In recent years, there has been a growing interest in advanced materials, particularly artificial muscles, due to their resemblance to biological systems. This study focuses on the self-healing properties of a partially neutralized sodium ionomer poly(ethylene-co-methacrylic acid) (PEMA), and proposes a fluorescence-based method for rapid detection and monitoring. The results show that the ratiometric fluorescence emission variations can be used to assess the elastic modulus properties of the material after healing, and statistical analysis can accurately predict the time since damage healing.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Subi Choi, Bitgaram Kim, Sungmin Park, Ji-Hun Seo, Suk-kyun Ahn
Summary: The network structures of liquid crystal elastomers (LCEs) play a crucial role in imparting rubbery behavior and enabling reversible actuation. This study introduces a new class of LCEs, polyrotaxanes (PRs) as slidable cross-links (PR-LCEs), that significantly impact the properties of resulting PR-LCEs, particularly at an optimum PR loading of 0.5 wt % where toughness and damping behavior are maximized.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Biochemistry & Molecular Biology
Masoumeh Mohamadhoseini, Zahra Mohamadnia
Summary: The mechanical properties of self-healing hydrogels based on host-guest interaction can be enhanced by employing the dual cross-linking method. The alginate-based hydrogels with porous structure and improved mechanical properties were obtained through modification with beta-cyclodextrin and adamantane groups. The incorporation of Ca2+ ions and dual cross-linking methodology further improved the mechanical properties of the hydrogels, making them suitable for various applications such as 3D printing and tissue engineering.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Chemistry, Multidisciplinary
Zhixuan Liang, Yiheng Li, Liu He, Zhi Gao, Zhenbin Tang, Yiting Xu, Birong Zeng, Weiang Luo, Guorong Chen, Conghui Yuan, Lizong Dai
Summary: A delayed cross-linking strategy is developed to make hydrogels evolvable. The study shows that mechanical stimulation can strengthen the hydrogels, and the hydrogels can self-evolve in a damage-healing process.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Piotr Kobedza, Aleksandra Smejda-Krzewicka, Krzysztof Strzelec
Summary: The study confirmed the ability to cross-link chloroprene rubber using copper oxides, showing that copper oxides can effectively cross-link CR and improve the properties of vulcanizates. The type and amount of copper oxides used affect the degree of cross-linking and the characteristics of the vulcanizates.
Article
Materials Science, Biomaterials
Yajun Chen, Qingqing Wang, Dawei Li, Alfred Mensah, Yuyu Qiu, Huizhen Ke, Qufu Wei
Summary: The study demonstrates that multifunctional hydrogels based on quaternized chitosan and polyacrylamide, with appropriate dopamine and quaternized chitosan content, exhibit excellent mechanical properties, tissue adhesiveness, and self-healing capability. Furthermore, these hydrogels show strong adhesion to porcine skin and effective antibacterial properties against S. aureus and E. coli.
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
(2021)
Article
Polymer Science
Xiaolong Pan, Zhaozhao Wang, Long Chen, Wenhao Li, Jian Hu, Jie Hu, Xiao Wu, Jianming Zhang, Yongxin Duan
Summary: This study investigates the dependence of microstructure and properties of TPVs on molding processes and finds that high rate shear injection molding can enhance tensile strength and Young's modulus of PP/BIIR-TPVs, while compression molding benefits elongation at break. The effects of high rate shear during injection molding on phase morphology development of PP/BIIR-TPVs are discussed, providing guidance for preparing TPVs products with desired properties.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Aizeti Burgoa, Aitor Arriaga, Jon Haitz Badiola, Julen Ibarretxe, Maider Iturrondobeitia, Ana Martinez-Amesti, Jose Luis Vilas
Summary: The correlation between the static and dynamic mechanical properties and the morphology of thick-walled TPVs produced by injection molding is investigated in this study. It is found that the softest TPV exhibits an improvement in elastic recovery of up to 50% in the transverse direction and a highly anisotropic viscoelastic behavior. These findings are attributed to the orientation of ethylene-propylene-diene particles, polypropylene crystals, and chain alignment. This study presents new opportunities for developing TPV-based anti-vibration components with superior elasticity and customizable mechanical properties through considering the anisotropic nature of soft TPV materials.
POLYMER INTERNATIONAL
(2023)
Article
Polymer Science
Qi Wang, Yutao Li, Jianbin Xiao, Lin Xia
Summary: Intelligent blends of Eucommia ulmoides rubber (EUR) and ionomer Surlyn resin (SR) were prepared and studied in this paper. The study presents the first combination of EUR with SR to create blends with both shape memory effect and self-healing capability. The mechanical, curing, thermal, shape memory, and self-healing properties were investigated using various testing methods. The results showed that increasing the ionomer content improved not only the mechanical and shape memory properties but also endowed the blends with excellent self-healing ability under suitable environmental conditions. The self-healing efficiency of the composites reached a remarkable 87.41%, exceeding that of other covalent cross-linking composites. Therefore, these novel shape memory and self-healing blends can find applications in special medical devices, sensors, and actuators.
Article
Chemistry, Multidisciplinary
Zaiqiang Ma, Kangren Kong, Yu Yin, Zhengxi Guo, Xiaoming Ma, Qingyun Lin, Jie Wang, Yinlin Shen, Xingyu Lu, Xurong Xu, Xueqian Kong, Zhaoming Liu, Ruikang Tang
Summary: In this study, a group of compounds resembling alloy-like minerals were synthesized by cross-linking ionic oligomers, and their mechanical properties could be adjusted by tailoring their chemical compositions. This strategy expands the chemical scope of inorganic materials and holds promise for preparing high-performance minerals.
ADVANCED MATERIALS
(2023)