Article
Polymer Science
Lei Wang, Yuanbo Cai, Haoruo Zhang, Huawei Zou, Yang Chen, Mei Liang, Zhengguang Heng
Summary: This study introduces a reversible cross-linked structure to enhance the mechanical properties and self-healing ability of silicone elastomers at room temperature. The influence of cross-linker content on the elastomer's performance was investigated, and the structure of the self-healing materials was characterized using low-field NMR.
Article
Chemistry, Multidisciplinary
JianHua Xu, JiaoYang Chen, YaNa Zhang, Tong Liu, JiaJun Fu
Summary: The newly designed glassy polyurethane has a high glass transition temperature, robust stiffness, and remarkable self-healing ability due to the high density of loosely packed hydrogen bonds with reversible dissociation and association capabilities below room temperature.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Materials Science, Characterization & Testing
Nuur Laila Najwa Thajudin, Mohd Hafiz Zainol, Raa Khimi Shuib
Summary: A self-healing natural rubber material with reversible metal-thiolate ion networks was successfully developed, allowing for self-repair at room temperature. The study demonstrated that the mechanical properties of the material can be fully regenerated, with a 60% increase in lifespan. This new material shows potential for the manufacturing of sustainable rubber products.
Article
Engineering, Environmental
Janarthanan Supramaniam, Darren Yi Sern Low, See Kiat Wong, Bey Fen Leo, Bey Hing Goh, Siah Ying Tang
Summary: This study successfully fabricates rubber gloves with excellent mechanical properties and self-healing ability by synthesizing zinc oxide-cellulose nanofiber (ZnO-CNF) reinforced epoxidized natural rubber (ENR) composite. The addition of ZnO-CNF filler significantly improves the tensile strength and thermal stability of the gloves. The resulting ENR/ZnO-CNF gloves exhibit high strength, strain recovery, and thermo-responsive self-healing behavior.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Polymer Science
Kunakorn Chumnum, Ekwipoo Kalkornsurapranee, Jobish Johns, Karnda Sengloyluan, Yeampon Nakaramontri
Summary: The self-healing composites prepared from BIIR and NR blends filled with CNT and CB showed improved cure and tensile properties after modification with IL and IM. The composites exhibited superior mechanical and electrical properties, making them suitable for inner liner and tire tread applications.
Article
Polymer Science
Noor Faezah Mohd Sani, Nuur Laila Najwa Thajudin, Nabil Hayeemasae, Raa Khimi Shuib
Summary: A series of self-healing natural rubber (NR) with thermo-reversible (zinc) Zn2+ salt bonding networks were successfully fabricated using a reversible ionic interaction approach. The analysis confirmed the formation of Zn2+ salt bonding in the rubber networks. The materials exhibited excellent self-healing capability, recovering up to 76% under tensile mode and 100% under tear mode and fatigue. The reconnection of ionic salt bonding allows for rearrangements of rubber segments, making NR-g-MAA potential self-healing rubber materials.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Materials Science, Textiles
Raa Khimi Shuib, Nuraina Hanim Mohd Nizam, Azniwati Abd Aziz
Summary: This study describes a facile technique for developing a novel self-healing coating using natural rubber latex (NRL) to produce autonomous self-healing fabrics that can recover from damage at room temperature. The coating, consisting of a dynamic reversible metal thiolate ionic network, improves the structural integrity of the fabric and allows intermolecular diffusion for complete healing. The fabric achieved 100% healing efficiency in terms of tensile strength, tear strength, and puncture strength when the damaged fabrics were brought into contact and allowed to heal at room temperature. This technology has great potential in the textile industry.
JOURNAL OF INDUSTRIAL TEXTILES
(2023)
Article
Polymer Science
Ali Safaei, Joost Brancart, Zhanwei Wang, Sogol Yazdani, Bram Vanderborght, Guy Van Assche, Seppe Terryn
Summary: By adjusting the off-stoichiometric ratio of maleimide-to-furan in the polymer network, we demonstrate the ability of Diels-Alder polymers to heal macroscopic damages at room temperature and restore their mechanical properties within a few hours. Immediate partial recovery is observed mere minutes after reuniting the fractured surfaces. The influence of crosslink density on self-healing and material performance was investigated through an extensive study of seven different Diels-Alder polymers.
Article
Materials Science, Composites
Abdul Rehman, Hanafi Ismail, Noor Faezah Mohd Sani, Nadras Othman, Noor Aishatun Majid, Atif Islam, Raa Khimi Shuib
Summary: This study explores the reinforcement effect of halloysite nanotubes (HNTs) in self-healing natural rubber based on metal thiolate ion networks. The results show that the addition of HNTs can significantly improve the mechanical performance and self-healing efficiency of the rubber material.
POLYMER COMPOSITES
(2023)
Article
Polymer Science
Tamonwan Chantaramanee, Supachok Tanpichai, Anyaporn Boonmahitthisud
Summary: This study successfully develops epoxidized natural rubber (ENR) crosslinked using borax under alkaline conditions, which exhibits self-healing and self-repairing properties. FTIR and 11B-NMR results show that ENR prepared under alkaline conditions forms crosslink networks more actively with borax, and the presence of borax significantly increases the crosslink density and gel content. The crosslinking ENR by borax enhances self-healing and self-repairing properties, showing promising potential for various self-healing rubber applications.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Ye Ting, Kuang Dajiang, Han Weiyi, Yin Yunjie, Wang Chaoxia
Summary: This article presents a self-healing flexible sensor with graphene/rubber-based supramolecular elastomer for human motion detection. The sensor exhibits good electrical conductivity, fast response time, and excellent mechanical strength, as well as high-performance healing efficiency at room temperature. It can accurately detect human motion signals even after healing.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Engineering, Chemical
Abdul Rehman, Hanafi Ismail, Noor Faezah Mohd Sani, Noor Aishatun Majid, Nadras Othman, Raa Khimi Shuib
Summary: Polymethylmethacrylate-co-methacrylic acid (PMMA-co-MAA) was used to modify the surface of silica for reinforcement in self-healing natural rubber. The optimized PMMA-co-MAA was investigated in NR/silica composites with different filler loadings. The graft polymerization of PMMA-co-MAA on silica was confirmed, and intermolecular diffusion at the fractured area was detected. The composite tensile and tear performance increased significantly with varying healing efficiency depending on the silica loading.
POLYMER ENGINEERING AND SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Wenpeng Zhao, Bing Huang, Lei Zhu, Xianqi Feng, Jun Xu, Hao Zhang, Shouke Yan
Summary: In this study, a hydrogel with high mechanical properties, self-healing ability, and conductivity was constructed using starch and natural rubber latex through a simple heating process. The hydrogel can be used as a wearable sensor to monitor human motions with high gauge factor and good durability.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Materials Science, Multidisciplinary
Binh Trinh, Patricia Owen, Anna vanderheide, Arvind Gupta, Tizazu H. Mekonnen
Summary: This study investigates the design of a recyclable and self-healing natural rubber using dynamic covalent networks. The rubber possesses high activation energy and low freezing topology temperature, allowing for multiple rounds of reprocessing and exhibiting unprecedented self-healing capabilities. The findings are significant in reducing rubber waste and increasing the lifespan of elastomers.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Physical
Jinbiao Min, Zhaoxi Zhou, Hainan Wang, Qihui Chen, Maochun Hong, Heqing Fu
Summary: This paper prepared room-temperature self-healing and conductive composites based on imine reversible covalent bond, with good mechanical and conductive properties, where the mechanical strength and electrical resistivity were 6.6 MPa and 108 Omega middotm, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Manufacturing
K. L. Pickering, S. Raa Khimi, S. Ilanko
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2015)
Article
Engineering, Multidisciplinary
S. Raa Khimi, K. L. Pickering
COMPOSITES PART B-ENGINEERING
(2015)
Article
Polymer Science
Raa Khimi Shuib, Kim Louise Pickering
JOURNAL OF APPLIED POLYMER SCIENCE
(2016)
Article
Engineering, Multidisciplinary
S. Raa Khimi, K. L. Pickering
COMPOSITES PART B-ENGINEERING
(2016)
Article
Polymer Science
S. Raa Khimi, K. L. Pickering
JOURNAL OF APPLIED POLYMER SCIENCE
(2014)
Article
Polymer Science
Raa Khimi Shuib, K. L. Pickering, B. R. Mace
JOURNAL OF APPLIED POLYMER SCIENCE
(2015)
Article
Engineering, Civil
Ngoc Thien Lai, Hanafi Ismail, Mohd Khalil Abdullah, Raa Khimi Shuib
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2019)
Article
Polymer Science
Nordalila Moksin, Hanafi Ismail, Muhammad Khalil Abdullah, Raa Khimi Shuib
RUBBER CHEMISTRY AND TECHNOLOGY
(2019)
Article
Polymer Science
Nur Haslina Nasirah Abdul Hadi, Hanafi Ismail, Muhammad Khalil Abdullah, Raa Khimi Shuib
JOURNAL OF APPLIED POLYMER SCIENCE
(2020)
Article
Engineering, Multidisciplinary
Makara Lay, Nuur Laila Najwa Thajudin, Zuratul Ain Abdul Hamid, Arjulizan Rusli, Muhammad Khalil Abdullah, Raa Khimi Shuib
COMPOSITES PART B-ENGINEERING
(2019)
Article
Engineering, Chemical
Mohd Fadzli Hamid, Mohamad Yusof Idroas, Shukriwani Sa'ad, Teoh Yew Heng, Sharzali Che Mat, Zainal Alimuddin Zainal Alauddin, Khairul Akmal Shamsuddin, Raa Khimi Shuib, Muhammad Khalil Abdullah
Article
Materials Science, Paper & Wood
Siti Nurul Izzati Kudori, Hanafi Ismail, Raa Khimi Shuib
Proceedings Paper
Engineering, Multidisciplinary
M. A. Husnan, H. Ismail, R. K. Shuib
TALENTA - CONFERENCE ON ENGINEERING, SCIENCE AND TECHNOLOGY 2017 (TALENTA-CEST 2017)
(2018)
Proceedings Paper
Physics, Applied
Nadras Othman, M. Hazwan Hussin, Raa Khimi Shuib, Norazlan Sulaiman
NATIONAL SYMPOSIUM ON POLYMERIC MATERIALS (NSPM 2017)
(2018)