Article
Polymer Science
Pengkai Qin, Linbo Wu, Bogeng Li, Naixiang Li, Xiaohu Pan, Junming Dai
Summary: Comparative study of gas barrier properties between PBST and PBAT revealed that PBST exhibited superior barrier properties for O-2 and CO2 due to its slower segment movement and less free volume, while its improvement in water vapor barrier was limited by its better hydrophilicity countering the partial contribution of slower segment movement.
Article
Agricultural Engineering
Taizhi He, Yinkui Jiang, Suichao Chang, Xin Zhou, Ying Ji, Xiangchen Fang, Yan Zhang
Summary: Antibacterial bioplastic was obtained by functionalizing lignin with Lignin-g-PHMG and incorporating it into PBST matrix, exhibiting good mechanical and antioxidant properties. The composite bioplastics demonstrated a synergistic antibacterial effect and durable nonleaching antibacterial performance against E. coli and S. aureus.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Polymer Science
Kun Xue, Peng Chen, Can Yang, Zhimei Xu, Ling Zhao, Dongdong Hu
Summary: In this study, fully biodegradable PBST/PBS microcellular foams were fabricated using CO2 and N2 as blowing agents. The addition of PBS improved the foam's properties and alleviated the shrinkage behavior, while the introduction of N2 effectively inhibited foam shrinkage. The results of this study demonstrate that by adjusting the composition of blowing agents and additives, biodegradable foam materials with good performance and dimensional stability can be achieved.
POLYMER DEGRADATION AND STABILITY
(2022)
Article
Polymer Science
Qing Zhang, Yongguang Gao, Baojing Luo, Yan Cui, Shili Shu, Wei Chen, Lei Wang
Summary: Poly(butylene succinate-butylene terephthalate) (PBST) and polylactic acid (PLA) were blended using styrene-maleic anhydride copolymer (PSMA) as a compatibilizer. The addition of PSMA improved the compatibility between PBST and PLA, resulting in enhanced mechanical properties. The blends exhibited shear-thinning behavior and belonged to pseudoplastic non-Newtonian fluids.
Article
Engineering, Environmental
Shanshan Zhou, Yongyan Sun, Huimin Ma, Chunfeng Jia, Xiaoyu Sun, Yubin Yang, Juan Liu, Jinjun Yang
Summary: The study found that TMC300 as a nucleating agent significantly improved the crystallizability of PES during cooling process, and interacted with PES through hydrogen bonds. This interaction played a key role in enhancing the nucleation effect of TMC300 on PES.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2021)
Article
Polymer Science
Shanshan Zhou, Ziyu Wei, Yongyan Sun, Zhe Zhu, Zhanghua Xie, Huimin Ma, Jing Yin, Junsheng Wang, Jinjun Yang
Summary: The addition of EBH significantly enhances the crystallization rate and thermal stability of PES, with EBH showing good nucleating effects in PES. The hydrogen bond interaction between EBH and PES promotes rearrangement of carbonyl groups during crystallization process.
POLYMER DEGRADATION AND STABILITY
(2021)
Article
Materials Science, Characterization & Testing
Ziyu Wei, Shanshan Zhou, Yuhong Xie, Yongyan Sun, Huimin Ma, Zhanghua Xie, Zhe Zhu, Jinjun Yang
Summary: Incorporating TMC306 as a nucleator into PES enhances the crystallization behavior of PES at lower weight fractions, but leads to a decline in crystallization at higher weight fractions. Interaction between TMC306 and PES through hydrogen bonding is indicated by IR results.
Article
Materials Science, Composites
Yousef Ahmad Mubarak
Summary: This study investigates the effects of two different biodegradable plastic additives on the thermal and mechanical properties of isotactic polypropylene. The results show that both additives have an impact on the crystallization process and the morphology of the polypropylene, resulting in changes in its mechanical properties.
JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS
(2022)
Article
Biochemistry & Molecular Biology
Tatiana G. Volova, Natalia O. Zhila, Evgeniy G. Kiselev, Aleksey G. Sukovatyi, Anna V. Lukyanenko, Ekaterina I. Shishatskaya
Summary: The properties, thermal behavior, and crystallization of copolymers containing different valerate monomers were studied. The results showed that terpolymers had higher thermal stability and lower crystallinity compared to the binary copolymers. Additionally, the terpolymers exhibited higher rates of spherulite formation during crystallization.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Materials Science, Ceramics
Diming Xu, Haowei Zhang, Lixia Pang, Fayaz Hussain, Tao Zhou, Shi-Kuan Sun, Zhijiao Chen, Di Zhou
Summary: In this work, a novel monoclinic Scheelite structure phase of Bi(Ge0.5Mo0.5)O-4 is reported, with similar properties to BiVO4. The new phase exhibits a dielectric permittivity of approximately 35, a Qf value of around 20000 GHz, and a TCF value of -46 ppm/°C. These findings demonstrate the potential of the new Scheelite structure phase for modifying and substituting BiVO4 in various applications.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Jingjing Liu, Jiahui Wei, Chao Liu
Summary: Cooling rate has a significant effect on the structures and properties of glasses, potentially altering their chemical, physical, and mechanical properties, as well as their crystallization behaviors. This study investigates the impact of cooling rate on the crystallization and optical properties of glasses used to precipitate semiconductor nanocrystals, using sodium zinc silicate glasses as a typical example.
CERAMICS INTERNATIONAL
(2023)
Article
Thermodynamics
M. Jerroudi, L. Bih, S. Yousfi, L. Bejjit, M. Haddad, B. Manoun, P. Lazor
Summary: Glasses with varying manganese content were prepared using a melt-quench route and studied for their physical and structural properties using techniques such as X-ray diffraction and infrared spectroscopy. The presence of Mn(2+) and Mn(3+) ions in the glasses led to yellow to dark coloration. Optical parameters such as optical band gap and Urbach energy were determined and found to be composition dependent. The conductivity of glasses decreased with increasing manganese content and showed thermal activation behavior. The crystallization kinetics and phases were identified through heat treatments and XRD analysis under non-isothermal conditions.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Polymer Science
Kangjing Zhang, Zhiguo Jiang, Zhaobin Qiu
Summary: The research systematically investigated the thermal, crystallization, and mechanical properties of three novel PES-based copolyesters with different lengths of side groups. The presence of side groups did not alter the crystal structure but slightly decreased crystallinity. As the length of side groups increased, the melting point temperatures decreased and the elongation at break increased. The dynamic mechanical analysis showed a gradual decrease in storage modulus and tan 5 with increasing side group length, indicating significant impact on the properties of PES-based copolymers.
POLYMER DEGRADATION AND STABILITY
(2021)
Article
Polymer Science
Lipeng Liu, Bo Wang, Chao Li, Chang Wei, Zhiyong Wei
Summary: Compatibility and crystal structure play key roles in the mechanical properties of blending materials. In this study, large-scale synthesis of biodegradable polyester poly(butylene carbonate-coterephthalate) (PBCT) was achieved, and PBCT-based blends with excellent compatibility were prepared without any extra compatibilizer. Tensile tests showed that blending PBCT with industrial biodegradable polyesters significantly improved the mechanical properties. Molecular weight analysis, thermal properties, rheology behavior, and X-ray diffraction confirmed that the improvement in mechanical properties was due to reactive compatibility and co-crystallization. Additionally, the barrier properties of PBCT-based blends were enhanced, reducing the need for compatibilizers and expanding the application scope of biodegradable polyesters.
Article
Polymer Science
Zhiyi Sun, Mingkun Chen, Gang Xie, Zhiguo Jiang, Zhaobin Qiu
Summary: This study successfully synthesized a series of novel poly(ethylene succinate-co-2,3-butylene succinate) (2,3-PEBS) copolyesters with low contents of 2,3-butylene succinate unit (2,3-BS) via a two-stage melt polycondensation. The results revealed that the introduction of a small amount of two adjacent side methyl groups brought an obvious variation in the thermal and mechanical properties of PES. However, 2,3-PEBS displayed the same crystallization mechanism and crystal structure as PES.
Article
Materials Science, Multidisciplinary
Madeeha Riaz, Manahil Najam, Hina Imtiaz, Farooq Bashir, Tousif Hussain
Summary: This study focuses on the structural and biological analysis of Zn-Cu based biodegradable alloys for orthopedic applications. The results indicate that the alloys have good electrical conductivity and biocompatibility, with potential for promoting bone growth and healing process. Additionally, the alloys exhibit a low corrosion rate and improved corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rijo Rajeev, Sk Safikul Islam, Anitha Varghese, Gurumurthy Hegde, Suryasarathi Bose
Summary: In this study, a facile and selective electrochemical sensor was developed for the sensing of guanosine. The sensor utilized a unique porous structure and ordered framework, enabling linear detection of guanosine concentration in the range of 0.123-720 μM under specific conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rafael V. M. Freire, Dominique Celeste de A. Dias, Jose Yago Rodrigues Silva, Dayane Kelly Dias do Nascimento Santos, Larissa T. Jesus, Ricardo O. Freire, Severino A. Junior
Summary: This study reports the extraction and isolation of euphol from nature, its adsorption in nanosized ZIF-8, and the efficacy of this system against cancer cells. Experimental and simulation results show that ZIF-8 can enhance the effectiveness of euphol against cancer cells and selectively target cancer cells.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Manal A. Awad, Awatif A. Hendi, Maha M. Almoneef, Maymunah Alwehaibi, Khalid M. Ortashi, Wadha Alenazi, Fatimah S. Alfaifi, Shareefa Alahmariye, Asma Alangery, Warda Ali Alghoubiri, Haia Aldosari
Summary: In this study, magnesium-doped zinc oxide nanoparticles were synthesized and characterized. The research findings show that magnesium doping can alter the crystal structure and optical properties of zinc oxide, while enhancing its dielectric constant.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
F. J. Willars-Rodriguez, I. R. Chaverz-Urbiola, M. A. Hernandez-Landaverde, A. Zavala-Franco, E. A. Chavez-Urbiola, P. Vorobiev, Yu V. Vorobiev
Summary: This study focuses on manganese doped CdS thin films synthesized by chemical bath deposition. The incorporation of Mn2+ cations in CdS was found to influence the crystalline structure, morphology, and optoelectronic properties. Doped thin films exhibited a uniform hexagonal structure, changed growth orientation, and showed scale-like and needle-like morphologies. The bandgap and rectification speed of Schottky diodes were modified by introducing manganese. This study suggests the potential for affordable high-speed optoelectronic devices.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Mehdi Javidi, Hooman Karimi Abadeh, Fatemeh Namazi, Hamid Reza Yazdanpanah, Narjes Shirvani Shiri
Summary: This study investigated the synergistic effect of temperature, solution velocity, and sulphuric acid concentration on the corrosion behavior of carbon steel using response surface methodology. The results showed that temperature affected anodic reactions, solution velocity influenced cathodic reactions, and acid concentration altered the corrosion mechanisms by changing the properties of the surface layer.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
R. Sakthivel, Thirumoorthy Kulandaivel, Kirankumar Venkatesan Savunthari, K. Mohanraj, Hans-Uwe Dahms, Aswin kumar Anbalagan, Manjunath Rangasamy, Kien-Voon Kong
Summary: In this study, saturated fatty acids were incorporated with silane to modify viscose fabric, resulting in superhydrophobic and superoleophilic properties. The modified fabric showed excellent separation efficiency for oil and organic solvents, with high absorption capacity. The modified fabric also exhibited durability and retained its properties in harsh conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Wei Zhang, Hong Lei, Wenqing Liu, Zefang Zhang, Yi Chen, Xiaogang Hu, Xiangshan Ye
Summary: In this study, EDTA-grafted alumina composite abrasives were produced by a two-step process for the CMP of sapphire substrates. Experimental results showed that the modified abrasives exhibited better dispersion properties and significantly improved polishing efficiency, with higher material removal rates and lower surface roughness. The combination of chemical reaction and mechanical action enhanced the CMP performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Shumaila Rafaqat, Bushra Perveen, Warda Raqba, Warda Imran, Arshad Hussain, Naeem Ali
Summary: This study developed a MnP-based biosensor for quantitative measurement of dye concentrations using electrochemical signals. The effects of two different dyes on MnP activity were investigated, with one dye showing inhibitory effects and the other dye having no effect. The study demonstrates the potential application of enzyme-based biosensors in dye detection and toxicological monitoring.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Jinyan Shi, Oguzhan Yavuz Bayraktar, Baris Bayrak, Burak Bodur, Ali Oz, Gokhan Kaplan, Abdulkadir Cuneyt Aydin
Summary: The elemental composition of precursors is crucial for the performance development of geopolymers. The use of lime instead of metakaolin increases the fluidity and mechanical properties of geopolymers, while the addition of gypsum decreases them. Furthermore, higher lime content exacerbates the negative effect of gypsum.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aayush Gupta, Kaveri Ajravat, Loveleen K. Brar, O. P. Pandey, Pandey Rajagopalan
Summary: This study focuses on the performance of Mn3O4-ZnO composite material in wastewater treatment and energy storage applications, and presents a detailed comparative analysis. Results show that the composite material with equal concentrations of Mn3O4 and ZnO exhibits excellent photocatalytic activity and high capacitance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
V. Murugabalaji, Matruprasad Rout, Harsh Soni, Biranchi Narayan Sahoo
Summary: This study focuses on the corrosion characteristics of AA 7075 and AA 7075 based hybrid composite fabricated using stir casting and hot rolling techniques. The results show that the hybrid composite produced by hot cross rolling exhibits better corrosion resistance compared to the base metal. The addition of a small amount of graphite improves the bonding between the matrix and reinforcements, and the hot cross rolling enhances this bonding, leading to the formation of a strong passivation oxide layer and increased charge transfer resistance, thereby improving corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Fangkun Ning, Qinghao Shi, Shuping Kong, Weitao Jia, Lifeng Ma
Summary: The paper investigates a new method of rolling sheets with variable chamfering amounts in both the transversal and normal directions. The feasibility of the technological process was tested through simulation and compared with experimental results. Three important process parameters, temperature, stress, and flow velocity, were used to evaluate the effects on chamfering amount before determining the optimal angle. The spread formula for evaluating the shape quality of the plate after ECR was obtained through testing and theory.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aqeel Abbas, M. A. Hussein, Mohamed Javid
Summary: In this study, the AM60 magnesium alloy was processed using high-energy ball milling, and the results showed that different reinforcement agents had certain effects on particle size, crystallite size, lattice strain, and dislocation density.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
D. S. Mahmoud, E. M. Eldesouki, W. M. Abd El-Gawad
Summary: The development of flexible and lightweight microwave-absorbing materials has become a trendy topic. This study focuses on enhancing the microwave-absorbing performance of butadiene-acrylonitrile rubber (NBR) by incorporating novel reinforcing nanofillers. The results show that the NBR nanocomposite with a loading of 16 parts per hundred rubber (phr) of LiFe 20%/Si has the best microwave-absorbing performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)