Article
Polymer Science
Ali A. Rajhi
Summary: Fiber-reinforced polymer (FRP) composite materials are versatile due to their high specific stiffness and strength, but their brittle nature limits their properties. Adding nanoparticles as fillers in FRP composites can overcome these limitations. This paper focuses on studying the effect of nanofillers on the mechanical behavior of glass/epoxy composites.
Article
Materials Science, Composites
Jingwei Tian, Chenggao Li, Guijun Xian
Summary: Nanometer-sized TiO2 particles have been found to enhance the mechanical and tribological properties of epoxy composite coatings. The optimal mixture ratio of TiO2 is 4 wt%, with treated nanoparticles and a three-roll mill grinding technique significantly improving the tensile strength, modulus, elongation at break, wear resistance, and frictional coefficient of the composites. The uniform dispersion of TiO2 particles plays a key role in enhancing the wear resistance of the composites.
POLYMER COMPOSITES
(2021)
Article
Materials Science, Composites
Zhigang Yuan, Zhicheng Wang, Zhiyi Guo, Yanhui Wang, Jun Wang, Wen-bin Liu, Mehdi Derradji, Jian Qiu
Summary: A novel curing agent was mixed with diatomite particles into epoxy resin to obtain bio-composites that can be rapidly molded and cured at room temperature. The mechanical and thermal properties of the composites were studied, showing that thermal stability increased with higher CP fillers content. Additionally, dielectric property tests confirmed a decrease in dielectric constant due to the incorporating of novel curing agent and CP fillers with porous structure into epoxy resin.
POLYMER COMPOSITES
(2022)
Article
Engineering, Environmental
Ana Paula Nazar de Souza, Yordy E. Licea, Marcos V. Colaco, Jaqueline D. Senra, Nakedia M. F. Carvalho
Summary: In this study, a multifunctional material Fe-BT/MCM-41-NH2 was prepared and exhibited improved adsorption capacity for anionic azo dyes through electrostatic interaction and multiple adsorption sites, including protonated amino groups, FeONPs, and tea polyphenols with pi-pi interactions. The experimental data at equilibrium fit well with Freundlich and Temkin isotherms, indicating heterogeneous surface adsorption with multiple sites.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Materials Science, Composites
Ying Li, Yi Wu, Xiaoxiao Huang, Changdan Gong, Qin Shi, Wenying Zhou, Qiwei Cheng
Summary: In order to solve the problem of heat accumulation in electronic devices, researchers have developed new composites with high thermal conductivity. In this study, E-functionalized boron nitride nanosheets/liquid crystal monomer/epoxy-thiol films with high thermal conductivity were prepared using a flexible epoxy-thiol polymer as the matrix and LCM and f-BNNS as thermal fillers via high voltage orientation molding. The results showed that the thermal conductivity of the E-f-BNNS/LCM/Epoxy-thiol films with 30 wt% f-BNNS content reached 1.65 W/m.K, which was 511.11% higher than that of pure epoxy-thiol polymer (0.27 W/m.K). This research provides a simple and feasible method for preparing flexible epoxy polymer films with high thermal conductivity.
POLYMER COMPOSITES
(2023)
Article
Chemistry, Physical
Liu Yang, Yingxue Wu, Hongyi Shu, Chuang Wang, Changetong Song, Xianhong Zhang, Dong Chen, Yuhong Ma, Wantai Yang
Summary: Polymer-supported catalysts have been the focus of extensive research due to their easy handling, facile separation, and excellent recycling performance. In this study, a simple and efficient strategy was developed to fabricate isocyanate-functionalized polymer microspheres that can serve as a versatile support for photocatalyst immobilization. The resulting supported TiO2 nanoparticles exhibited higher photocatalytic performance, facile separation, and better reusability compared to pristine TiO2.
APPLIED SURFACE SCIENCE
(2023)
Article
Polymer Science
Priyank Lohiya, Alka Bani Agrawal, Alok Agrawal, Abhilash Purohit
Summary: The usability of LD slags as reinforcement material in epoxy composites was investigated. The physical, mechanical, and tribological properties of the composites were studied. The experimental results showed that the density, void content, and water intake capacity of the composites increased with LD slag loading. The tensile and flexural strength were slightly compromised, but the compressive strength increased with filler content. A forecast model based on an artificial neural network successfully predicted the sliding wear performance of the composites.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Materials Science, Composites
Qingfeng Tian, Chunhua Zhang, Yuan Tang, Yalan Liu, Liyong Niu, Tao Ding, Xiaohong Li, Zhijun Zhang
Summary: By adjusting the modifier dosage, nano-silica with enhanced compatibility and dispersibility in rubber matrix were successfully prepared, leading to improved mechanical properties and abrasion resistance of the composite materials.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Waleeporn Donphai, Nunchanok Musikanon, Zehui Du, Pariyawalee Sangteantong, Kunpirom Chainarong, Metta Chareonpanich
Summary: This study utilized bagasse heavy ash to prepare mesoporous silica MCM-41 via a low-cost, resource-efficient synthesis process, achieving high utilization and effectiveness in adsorbing volatile organic compounds.
Article
Polymer Science
R. Dungani, I. Sumardi, E. M. Alamsyah, P. Aditiawati, T. Karliati, J. Malik, Sulistyono
Summary: The study found that carbon black-filled epoxy nanocomposites produced from biomass waste can enhance the physical and mechanical properties of epoxy composites when the filler loading is between 1% to 5%. On the other hand, the performance decreases at 10% filler loading. The cleavage plane formed by carbon black nanograins makes crack propagation more difficult.
Article
Polymer Science
Mansur Zarrabi
Summary: This study for the first time used Iranian natural pumice as a source of silica to derive MCM-41 adsorbent, which was highly grafted with APTES for anchoring cephalexin (CEX) molecules. The results showed that N-MCM-41 exhibited excellent adsorption capacity and desorption performance, providing guidance for antibiotic adsorption.
Article
Polymer Science
Philipp Siedlaczek, Gerhard Sinn, Philipp Peter, Julius Jandl, Gyoergy Hantal, Karin Wriessnig, Roman Wan-Wendner, Helga C. Lichtenegger
Summary: This study investigated hygrothermal aging in two particle-filled epoxy-based composites. The composites had comparable filler loadings but differed in filler type (portland cement; quartz). The influence of 10 different climates with varying humidities and temperatures on mechanical properties was examined periodically using tensile tests. The changes in structure and composition were analyzed through microscopy, EDX, TGA, and XRD. It was found that physical aging and the growth of crystals within cement fillers contributed to stiffening effects, while water uptake led to an increase in modulus due to the formation of hydration products. The degradation of Young's modulus was not affected by filler type, but the degradation of tensile strength was substantially influenced.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Polymer Science
Emre Akin, Mustafa Cakir, Halil Demirer
Summary: This study produced new multi-featured epoxy composites with advanced mechanical properties, wear and impact resistance, and high-temperature performance. The surface-treated PTFE powders were filled into epoxy resin to achieve these improvements. The chemical treatment resulted in the presence of functional groups on the PTFE surface and strong adhesion and interfacial bonding with the matrix.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Polymer Science
Anton Mostovoy, Andrey Shcherbakov, Andrey Yakovlev, Sergey Arzamastsev, Marina Lopukhova
Summary: This study explores the possibility of using graphene oxide as a modifying additive for polymer fiber-reinforced composites based on epoxy resin and basalt roving. The optimal content of graphene oxide has been determined experimentally to achieve the best physico-mechanical properties of the obtained polymer composite material. The study also investigates the efficiency of modifying the graphene oxide surface with APTES finishing additives and aminoacetic acid, which provides a chemical interaction at the polymer matrix-filler interface. The influence of graphene oxide and functionalizing additives on the polymer curing process was analyzed using the thermometric method and differential scanning calorimetry.
Article
Chemistry, Multidisciplinary
Wenlin Yu, Qinpeng Dong, Wenbin Yu, Quan Wan, Xiuli Chen
Summary: In this study, MCM-41/Ag2O nanomaterials were successfully synthesized and evaluated as an adsorbent for I- removal from water. The nanomaterials showed strong adsorption capacity for I- and exhibited good selectivity in the presence of high concentrations of competitive anions.
