Article
Automation & Control Systems
Budi Arifvianto, Teguh Nur Iman, Benidiktus Tulung Prayoga, Rini Dharmastiti, Urip Agus Salim, Muslim Mahardika, Suyitno
Summary: This study investigates the effects of extruder temperature and raster orientation on the mechanical properties of FFF-processed TPU elastomer, concluding that the optimal parameters are 200 degrees Celsius and 0 degrees.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Materials Science, Textiles
Neslihan Karaca, Ilkay Ozsev Yuksek, Nuray Ucar, Aysen Onen, Cafer Kirbas
Summary: This study experimentally investigated the composite thermoplastic polyurethane (TPU)/polystyrene (PS) nanofiber web and TPU nanofiber web and PS-extracted TPU/PS microfiber web with regards to their sound absorption and thermal conductivity coefficients. The properties of the nanofiber webs were clearly affected by the extraction of PS from the composite fibers. The PS-extracted TPU/PS fibers showed better performance in low frequencies, while TPU nanofibers were more effective at medium frequencies. The TPU/PS composite nanofibers had the lowest thermal conductivity and moderate sound absorption coefficient at certain frequencies.
JOURNAL OF INDUSTRIAL TEXTILES
(2022)
Article
Materials Science, Composites
Patcharapon Somdee, Manauwar Ali Ansari, Kalman Marossy
Summary: In this study, flexible and rigid polyurethane/copper composites were prepared via a simple solution casting process. The dispersion and chemical bonding of the filler were investigated, and the thermal properties and mechanical properties of the composites were analyzed. The results showed that the thermal conductivity of the composites was significantly improved compared to the pure polyurethane, and the mechanical properties were also enhanced. The study suggests that copper microparticles can serve as an active filler in both flexible and rigid polyurethane matrices.
POLYMER COMPOSITES
(2023)
Article
Polymer Science
Danae Villagra, Pablo Fuentealba, Evgenia Spodine, Andres Vega, Ricardo Costa de Santana, Raquel Verdejo, Miguel A. Lopez-Manchado, Hector Aguilar-Bolados
Summary: In this study, the influence of terbium (III) species in a thermoplastic polyurethane (TPU) matrix was investigated. It was found that the film doped with the nitrate salt exhibited different physical properties compared to the pristine TPU and the film containing the terbium (III) complex. The TPU/TbIII complex film showed more intense luminescence due to the antenna effect, while TPU doped with the nitrate salt showed weak emission, indicating the lack of sensitizing groups.
Article
Chemistry, Physical
Mihaela Nituica, Ovidiu Oprea, Maria Daniela Stelescu, Maria Sonmez, Mihai Georgescu, Laurentia Alexandrescu, Ludmila Motelica
Summary: Polymeric biocomposites based on TPU/recycled TPUW/mixed leather and SBR rubber waste unmodified/modified with polydimethylsiloxane/PE-g-MA in different percentages were prepared via mixing technique. The waste was cryogenically ground to micrometric sizes and different speeds. Standard plates were obtained through compression method using a laboratory-scale hydraulic press. Physico-mechanical and rheological tests were conducted on the biocomposites, along with FT-IR spectroscopy, microscopy, and DSC. According to the footwear industry standards, at least two samples showed optimal values suitable for injection or pressing in forming molds.
Article
Materials Science, Characterization & Testing
Weiwei Fan, Junchao Wang, Zhengjun Li
Summary: In this study, amphiphilic polyurethane modified silica (MSiO2) nanoparticles were prepared using in-situ polymerization and physically incorporated with waterborne polyurethane (WPU) dispersion to fabricate WPU composite (WPU-MSiO2). The composite exhibited good antiglare function and improved mechanical, thermal, and water resistance properties. Notably, the WPU-MSiO23 composite showed the best performance in terms of antiglare and other physicochemical properties.
Article
Chemistry, Multidisciplinary
Wendy Triadji Nugroho, Yu Dong, Alokesh Pramanik, Zhixiao Zhang, Seeram Ramakrishna
Summary: This paper focuses on the co-influence of HNT content and 3D printing parameters on the mechanical properties of 3D printed TPU/HNT nanocomposites. The optimum factor-level combination for different responses was determined with the aid of robust statistical Taguchi design of experiments. Material characterisation was also carried out to evaluate the surface morphology, nanofiller dispersion, chemical structure, thermal stability, and phase behaviour corresponding to the DoE results obtained. It is evidently shown that HNT level and infill density play a significant role in impacting mechanical properties of 3D-printed TPU/HNT nanocomposites.
Article
Materials Science, Ceramics
Dan Xing, Chao Chang, Xiong-Yu Xi, Bin Hao, Qingbin Zheng, Sergey Gutnikov, Bogdan Lazoryak, Peng-Cheng Ma
Summary: This study investigated the effects of different temperature treatments in air atmosphere on the morphology and properties of basalt fibre (BF). It was found that heat treatment led to the formation of crystals on the fibre surface, changing the properties of BF. The reduction in tensile strength of BF occurred in three temperature ranges: 100-400 degrees C, where the decomposition of organic sizing on the fibre surface exposed more defect structures; 500-600 degrees C, where the amorphous matrix in the fibre experienced phase separation and structural relaxation; and 700-1000 degrees C, where the formation of various crystals caused structural modification.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Materials Science, Textiles
M. Jawaid, S. Awad, Hassan Fouad, Othman Y. Alothman, N. Saba, M. Sain, A. L. Leao
Summary: This study evaluates the impact of different olive tree residues on the thermal properties of olive/epoxy biocomposites. The results show that olive tree leaves as a filler improve the thermal and dynamic mechanical properties of the biocomposites. Meanwhile, olive tree small branch-filled biocomposites exhibit the highest storage modulus and lowest coefficient of thermal expansion.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Materials Science, Composites
R. Vijayan, Elango Natarajan, K. Palanikumar, A. Krishnamoorthy, Kalaimani Markandan, S. Ramesh
Summary: Environment friendly polymer composites made of plant based natural fibers offer lower carbon footprint, higher biodegradability, higher specific strength, higher thermal and acoustic characteristics. Synthetic glass fibers have high specific strength to weight ratio, great resistance during impact, and high durability. In this study, mechanical properties and thermal stability of hybrid laminates comprising of natural fibers and synthetic fibers were investigated. The findings show that fiber sequencing significantly affects the properties of the composite. The enhanced thermal stability and mechanical properties of the greener hybrid laminates make them suitable for various structural or lightweight industrial applications.
POLYMER COMPOSITES
(2023)
Article
Materials Science, Composites
Xin-Gang Chen, Ang Li, Yang-Fei Zhang
Summary: Silver nanoparticle-filled thermoplastic polyurethane composites are widely used in various fields, including medical and electronic devices. This study found that the thermal, mechanical, and electrical properties of the composites are significantly influenced by temperature, with changes in thermal conductivity, tensile modulus, and electrical percolation thresholds observed with increasing temperature and AgNP content.
POLYMER COMPOSITES
(2021)
Article
Construction & Building Technology
R. Prakash, Sudharshan N. Raman, N. Divyah, C. Subramanian, C. Vijayaprabha, S. Praveenkumar
Summary: The incorporation of roselle fibre reduced the workability of self-compacting concrete but improved mechanical characteristics. Higher fibre content resulted in increased compressive strength, splitting tensile strength, modulus of rupture, and modulus of elasticity. However, a 4% fibre addition may lead to a slight decrease in compressive strength and modulus of elasticity of the self-compacting concrete.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Polymer Science
Branka Music, Natasa Knez, Janez Bernard
Summary: This study investigates the influence of two flame retardants on polyurethane foam (PUR) systems, focusing on their thermal and mechanical properties. The results show that the flame retardants significantly improve the fire resistance of the PUR systems without affecting thermal conductivity, and only slightly decreasing the mechanical properties. These findings suggest that the presented systems can be applied as thermal insulation where both low heat conductivity and high flame resistance are required.
Article
Polymer Science
Xin-Zhu Wang, Jing-Wen Wang, Hou-Qing Wang, Guo-Chao Zhuang, Jian-Bao Yang, Ying-Jie Ma, Yang Zhang, Hua Ren
Summary: The mechanical properties of thermoplastic polyurethane (TPU) were improved by modifying it with polyether-block-amide elastomer (PEBA) through blending. The addition of a compatible agent, E-PU-I, improved the compatibility between TPU and PEBA, leading to more uniform dispersion and smaller particle size, thereby enhancing the overall performance of the blends. The mechanical properties of the blends were significantly improved when the critical E-PU-I content was around 3.2 parts.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Manzar Zahra, Habib Ullah, Mohsin Javed, Shahid Iqbal, Jigar Ali, Hamad Alrbyawi, Samia, Norah Alwadai, Beriham Ibrahim Basha, Amir Waseem, Sadaf Sarfraz, Adnan Amjad, Nasser S. Awwad, Hala A. Ibrahium, H. H. Somaily
Summary: The synthesis of polyurethane/zinc oxide (PU/ZnO) nanocomposites was successfully achieved in this study. SEM, FTIR spectroscopy, and XRD were used to confirm the structure and particle size of ZnO. The results showed that the nanoparticles were uniformly dispersed on the polymer surface, leading to improved material properties and thermal stability.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Materials Science, Composites
Farah Hanan, Tabrej Khan, Mohammad Jawaid, Mohamed Thariq Hameed Sultan, Tamer Sebaey, Balbir Singh, Siti Noorbaini Sarmin
Summary: Natural fiber-based materials are widely used as substitutes for synthetic fibers in the composite sector. Experimental study showed that pure kenaf composite has the best complex modulus and thermal stability, making kenaf fibers suitable for aerospace, automotive, and civil engineering applications requiring high dimensional stability and excellent mechanical properties.
POLYMER COMPOSITES
(2023)
Review
Pediatrics
Christine E. Jones, Heather Bailey, Alasdair Bamford, Anna Calvert, Robert B. Dorey, Simon B. Drysdale, Asma Khalil, Paul T. Heath, Hermione Lyall, Kate Monica Isabel Ralph, Shari Sapuan, Tushna Vandrevala, Simone Walter, Elizabeth Whittaker, Sharon Wood
Summary: Congenital human cytomegalovirus (CMV) infection is a common condition with long-term consequences for children. However, it is not well-known among pregnant women, families, and healthcare providers. Timely diagnosis and treatment are important for reducing transmission and improving outcomes for infants. Further research is needed to inform screening, outcomes, and treatment decisions.
ARCHIVES OF DISEASE IN CHILDHOOD
(2023)
Article
Environmental Sciences
Faris M. AL-Oqla, S. M. Sapuan
Summary: This study investigates the effects of various structural and treatment parameters on the mechanical properties of low-cost biomaterials made from Mediterranean corn agro waste lignocellulosic fibers. The results show that the produced composites can enhance tensile strength, but increasing fiber content decreases the modulus of elasticity.
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
(2023)
Review
Materials Science, Multidisciplinary
Nafeesa Mohd Kanafi, Anis Abdul Ghani, Norizah Abdul Rahman, Azira Abd Aziz, S. M. Sapuan
Summary: Natural rubber possesses superior performance properties compared to synthetic rubbers. Self-healing natural rubber has emerged as a sustainable material with the ability to recycle and repair rubber products. This article focuses on the material design principles for achieving self-healing capability in natural rubber, as well as testing methods and potential applications. Synthetic rubbers are also included for comparison and future strategies.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Materials Science, Textiles
Walid Abotbina, S. M. Sapuan, M. T. H. Sultan, M. F. M. Alkbir, R. A. Ilyas
Summary: The study examines the use of black seed fiber as a reinforcing material for cornstarch-based biocomposites. Different concentrations of black seed fiber and a plasticizer mixture were used to fabricate the biocomposites. The results showed that increasing the black seed fiber concentration improved the mechanical properties and thermal stability of the films, but decreased biodegradability. The addition of black seed fiber has the potential to enhance the performance of biopolymers in response to community needs and environmental concerns.
FIBERS AND POLYMERS
(2023)
Review
Engineering, Environmental
Aatikah Meraj, Surendra Pratap Singh, M. Jawaid, Mohamed Mahmoud Nasef, Taghrid S. Alomar, Najla AlMasoud
Summary: Agricultural residues have gained attention as a widely available waste source for creating value-added products. Lignin, a natural biopolymer, holds potential for developing eco-friendly and low-cost products. This review article discusses the use of natural deep eutectic solvents (NADES) as a sustainable method for extracting and isolating lignin, and also covers pre-treatment methods, advantages and disadvantages, synthesis of NADES, processing of lignin, applications, challenges, and future perspectives. The conclusion highlights the effectiveness of NADES in the purification and isolation of lignin from agro wastes, enhancing the economic value of lignocellulosic biomass.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2023)
Article
Forestry
Tengku Anita Raja Hussin, Rohana Hassan, Buan Anshari, Azman Md Nor, S. M. Sapuan
Summary: This research presents a statistical study of the glued-in rod splice connection for Mengkulang glulam timber. The use of statistical analysis is a relatively new approach to evaluate the performance of glued-in rod splice connections. Glued-in rods have several advantages over traditional mechanical connections, and the standard design for glued-in rods is currently based on estimated extrapolation. The main objective of this research was to develop a pull-out model and validate its effectiveness for glued-in rods parallel and perpendicular to the grain directions using SPSS.
Article
Polymer Science
Sanusi Hamat, Mohamad Ridzwan Ishak, Mohd Sapuan Salit, Noorfaizal Yidris, Syamir Alihan Showkat Ali, Mohd Sabri Hussin, Muhamad Saifuldin Abdul Manan, Muhamad Qauyum Zawawi Ahamad Suffin, Maliki Ibrahim, Ahmad Nabil Mohd Khalil
Summary: This research investigates the impact of self-polymerized polydopamine (PDA) coating on the properties of polylactic acid (PLA)/kenaf fiber (KF) composites in fused deposition modeling (FDM). The study develops a biodegradable FDM filament composite by coating dopamine on bast kenaf fibers and evaluates its mechanical properties through various tests. The results show that the PDA coating acts as a coupling agent, enhancing the interfacial adhesion between the fibers and PLA matrix, resulting in improved mechanical properties.
Article
Polymer Science
S. Ayu Rafiqah, A. F. Nur Diyana, Khalina Abdan, S. M. Sapuan
Summary: This study investigates the effects of alkaline treatment on the mechanical and thermal properties of miswak fiber-reinforced polylactic acid. The results show that the treatment significantly improves the tensile strength and thermal stability of the composite materials. The tensile strength increases by 18.01% for 1 wt % treatment, 6.48% for 2 wt % treatment, and 14.50% for 3 wt % treatment.
Article
Electrochemistry
Basori Basori, Wan M. F. W. Mohamad, Muhd R. Mansor, Noreffendy Tamaldin, Agung Iswadi, Maman K. Ajiriyanto, Ferry Budhi Susetyo
Summary: It is essential to investigate the electrochemical behavior of stainless steel (SS 316L) in potassium hydroxide (KOH) solution due to the trade-off between enhancing hydrogen production and higher corrosion rates caused by higher KOH concentrations. This study explored the influence of KOH concentrations on the electrochemical behavior, surface morphology, structure, and sample phases of SS 316L. The results showed that increasing KOH concentration leads to higher corrosion rates and lower solution resistance. Therefore, KOH concentrations below 50 g l-1 are recommended for the optimal remaining life of SS 316L plates in HHO generators.
JOURNAL OF ELECTROCHEMICAL SCIENCE AND ENGINEERING
(2023)
Article
Materials Science, Composites
Haja Syed Hussain, Mohd Ridzuan Mohd Jamir, Mohd Shukry Abdul Majid, S. M. Sapuan, Ferriawan Yudhanto, Aris Widyo Nugroho, Muhammad Faiz Hilmi Rani
Summary: In this study, the friction and wear properties of Furcraea foetida fiber-reinforced epoxy composites were investigated. The effect of fiber content on the tribological behavior of the composites was evaluated. The results showed that the composite with 50 vol% of fibers had the lowest frictional force and coefficient of friction (COF), while the composite with 60 vol% demonstrated the best wear resistance. This study provides valuable insights into the tribological behavior of the composites and identifies the optimal volume fractions for improved friction and wear performance.
POLYMER COMPOSITES
(2023)
Article
Materials Science, Textiles
Alhassan Yakubu Abare, Mohammad Jawaid, Norul Hisham Hamid, Balkis Fatomer A. Bakar, Ahmad Safwan Ismail, Siti Noorbaini Sarmin, Hassan Fouad, Mohamad Midani
Summary: This study investigated the physical, mechanical, morphological, and thermal properties of woven kenaf fibre reinforced bio-epoxy composites. The results showed that increasing fibre loading percentage led to higher density, water absorption, tensile strength, modulus, and impact strength. The optimal properties were achieved with 40% fibre loading in the kenaf/bio-epoxy composites.
JOURNAL OF INDUSTRIAL TEXTILES
(2023)
Article
Materials Science, Composites
Tauseef Ahmed, Hamdan Haji Ya, Mohammad Azad Alam, Mohammad Azeem, M. Rehan Khan, S. M. Sapuan, Mohammad Yusuf, Junaid Afridi
Summary: This study investigates the influence of hybrid reinforcements, namely CaCO3 particles and bentonite nano clay, on the wear and friction properties of high-density polyethylene (HDPE)-based composites. The results demonstrate a significant improvement in wear resistance, with the synthesized hybrid composite achieving a maximum improvement in wear rate of 93%. Morphological analysis reveals that the encapsulation and compatibilization effect of bentonite nano clay contribute to the improved wear performance. The prepared composite with enhanced tribological properties shows potential for use in low load-bearing wear applications such as turbo nanogenerators and piezo nanogenerators.
POLYMER COMPOSITES
(2023)
Review
Green & Sustainable Science & Technology
Abir Khan, S. M. Sapuan, J. Yusuf, Vasi Uddin Siddiqui, E. S. Zainudin, M. Y. M. Zuhri, B. T. Hang Tuah Baharuddin, Mubashshir Ahmad Ansari, A. Azim A. Rahman
Summary: This review covers the extraction of bamboo fiber, modification techniques of bamboo/PLA composites, challenges in their interfacial interaction, potential solutions to incompatibility issues, and applications of bamboo/PLA composites. It provides significant insights and suggestions for researchers and experts involved in the green composites field, leading to the development of sustainable materials for various applications.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Green & Sustainable Science & Technology
Nurul Hanan Taharuddin, Ridhwan Jumaidin, Muhd Ridzuan Mansor, Fahmi Asyadi Md Yusof, Roziela Hanim Alamjuri
Summary: The study examines the physical, chemical, morphological, and thermal properties of Hylocereus Polyrhizus peel (HPP) powder. The findings reveal that the powder has high cellulose content and thermal stability, making it a potential candidate for the development of biodegradable and renewable materials.
JOURNAL OF RENEWABLE MATERIALS
(2023)
