Article
Engineering, Multidisciplinary
Wei Wang, Shu Jian Chen, Kwesi Sagoe-Crentsil, Wenhui Duan
Summary: In this study, graphene oxide (GO) was used to reinforce and modify the interface of lightweight cement composites. The results showed that GO significantly reduced high-porosity regions between the cement matrix and polymer scaffold, leading to the formation of low-density calcium-silicate-hydrates. The GO-reinforced composites exhibited significantly increased compressive strength and specific energy absorption. This study enhances our understanding of the reinforcing mechanism of GO in thin-shell structures and demonstrates its effectiveness in improving the performance of lightweight cementitious composites.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Materials Science, Composites
Hongguang Wang, Lanjie Yang, Hao Wu
Summary: This study investigated the preparation and mechanical properties testing of epoxy-based flax and glass HFRP composites, finding that bending properties had a significant positive effect on hybrid composites.
POLYMER COMPOSITES
(2021)
Article
Mechanics
Pio Michele Giuliani, Oliviero Giannini, Riccardo Panciroli
Summary: Traditional composites like glass and carbon fiber reinforced polymers exhibit linear-elastic behavior with brittle failure, while natural fiber-reinforced composites like flax fiber composites show non-linear elasticity and plastic strains before failure. The study highlights the need for a complex material model to predict the mechanical behavior of flax-based composites due to the unique characteristics of the material.
COMPOSITE STRUCTURES
(2022)
Article
Materials Science, Composites
Bowen Xu, Bart van den Hurk, Sean J. D. Lugger, Tao Liu, Rijk Blok, Patrick Teuffel
Summary: This article investigates the effect of environmental humidity on the creep behavior of flax fiber-reinforced polymer (FFRP) composites. The creep of samples with 0 degrees and 90 degrees fiber increases with increasing relative humidity, while the samples with +/- 45 degrees fiber are not significantly affected by humidity. The change in the fiber-matrix interface and cracks between microfibrils in a fiber bundle are the main reasons for the change in creep behavior in high humidity.
POLYMER COMPOSITES
(2023)
Article
Construction & Building Technology
Magdalena Dolezelova, Lenka Scheinherrova, Jitka Krejsova, Martin Keppert, Robert Cerny, Alena Vimmrova
Summary: The study showed that the type and surface quality of fillers significantly affect the shape and size of gypsum crystals in composites. Mortars with rough particles had higher strength, with expanded clay filler having the highest strength and waste polyurethane foam having the best thermal conductivity.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Review
Nanoscience & Nanotechnology
Aarti P. More
Summary: Flax fiber is a popular natural fiber used as a reinforcing agent for polymer composites. Surface treatment improves the adhesion between fiber and polymer, enhancing mechanical performance. Additionally, flax fiber composites are more environmentally friendly compared to petroleum-based composites.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Materials Science, Composites
Gorkem Degirmen Biricik, Hande Celebi, A. Tugrul Seyhan, Funda Ates
Summary: The study demonstrates that biochar can be used as a substituting reinforcing constituent for carbon fiber in polyamide 66 hybrid composites, and surface modification can enhance interfacial compatibility. The incorporation of modified carbon fiber and flax fiber char in composite materials can improve the ultimate tensile strength and Young's modulus of the composites.
POLYMER COMPOSITES
(2022)
Article
Mechanics
Jingjing Wang, Yan Li, Tao Yu, Qian Li, Zhuo Li
Summary: This study aims to investigate the moisture absorption characteristics and internal stress variation in unidirectional flax fiber reinforced composites (FFRCs). The research findings indicate that moisture absorption in the width direction should not be ignored as it can significantly affect the mechanical properties, especially in the case of unidirectional transverse tensile test specimens. The study also reveals that the high internal stress caused by the mismatched swelling properties between the fiber and matrix is a major factor leading to the damage of FFRCs, particularly at the interface.
COMPOSITE STRUCTURES
(2022)
Article
Materials Science, Multidisciplinary
Anni Wang, Xiaogang Liu, Qingrui Yue, Guijun Xian
Summary: Flax/carbon fiber hybrid reinforced polymer composites were prepared to improve the mechanical properties. The effects of carbon fiber volume fraction, carbon fiber monolayer thickness, and hybrid mode on the properties of hybrid composites were studied by tensile tests. The results showed that the hybrid composites achieved positive hybrid effects with a minimum repeating unit of flax fiber as skin and carbon fiber as core.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Polymer Science
Bianca Dal Pont, Vito Gigante, Luca Panariello, Ilaria Canesi, Laura Aliotta, Andrea Lazzeri
Summary: This study aims to investigate lightweight thermoset fiber-reinforced composites with extremely high biobased content. The most promising formulations were used to produce flax fiber reinforced composites, and the properties of the new biocomposites were assessed. The results are very encouraging, as the stiffness-to-weight ratio is comparable to typical epoxy-glass composites.
Article
Materials Science, Textiles
Yahya Hisman Celik, Mehmet Suat Alp
Summary: The usage of natural fiber reinforced composite materials is increasing due to their ecological benefits and high mechanical properties. This study aimed to determine the milling performance of composites obtained from natural fibers and investigate the effects of different processing parameters. The results showed that vibration amplitude and delamination factor increased while cutting force and surface roughness decreased with increasing spindle speed. Cutting force, vibration amplitude, delamination factor, and surface roughness increased with increasing feed rate. The choice of tool material had an impact on the milling performance of different composites.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Materials Science, Multidisciplinary
Hari P. V. S. Prashanth, Elammaran Jayamani, Kok Heng Soon, Yat Choy Wong, Md Rezaur Rahman, Muhammad Khusairy Bin Bakri
Summary: The study investigated the impact of interfacial polarization or the Maxwell-Wagner-Sillars effect on the dielectric properties of polypropylene matrix with the addition of strontium titanate and flax fiber reinforcement. Results showed that dielectric relaxation occurs at low temperatures in the composite materials, while the interfacial relaxation strength significantly increased with the addition of reinforcements.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Polymer Science
Durvasulu Rajesh, Nagarajan Lenin, Robert Cep, Palanivel Anand, Muniyandy Elangovan
Summary: Modern research is focused on finding natural, green, and sustainable materials to replace conventional materials. Natural fiber composites, which have beneficial qualities, are being extensively studied. This research develops a hybrid flax fiber reinforced with phenol-formaldehyde resin and ramie fiber through a vacuum infusion process. The study finds that the fabrication technique affects the adhesion between the matrix and reinforcement. Results show that composites with ramie as the sheath layer and flax as the core exhibit better mechanical characteristics. Laminate H demonstrates the highest mechanical properties among the eight laminates produced for this study. Morphological analysis reveals few defects in the laminate after testing. The developed composites demonstrate superior mechanical properties compared to commercial composites available on the market.
Article
Multidisciplinary Sciences
Ahmad Safwan Ismail, Mohammad Jawaid, Norul Hisham Hamid, Ridwan Yahaya, Siti Noorbaini Sarmin, Hassan Fouad, Mohini Sain
Summary: This study investigates the influence of flax fibre loading on the dynamic thermal and mechanical characteristics of composites. The results show that the incorporation of flax into the composites improves the dynamic mechanical properties but reduces thermal stability.
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
(2023)
Article
Materials Science, Composites
Deepak Kaushik, Sandeep Gairola, Binaz Varikkadinmel, Inderdeep Singh
Summary: This experimental investigation examines the effect of warp/weft orientation on the mechanical characteristics of intra-woven hybrid composites. The results show that combining jute with sisal and flax with kenaf improves the mechanical properties of sisal and kenaf based composites. The fiber hybridization and warp/weft sequence play a substantial role in the dynamic mechanical performance of the composites.
POLYMER COMPOSITES
(2023)
