The mechanical properties of the carbon fiber-reinforced polymer composites (CFRPs) are dependent on the interfacial interaction and adhesion between carbon fibers (CFs) and polymer matrices. Therefore, it is crucial to understand how modifying the CFs can influence the properties of these composites. This review outlines recent research progress with a focus on the relationship between the interfacial and mechanical properties of CFRPs and provides a systematic summary of state-of-the-art surface modification techniques. These techniques are divided into four categories: (i) wet, (ii) electrochemical, (iii) dry, and (iv) polymer matrix modifications. Several strategies for enhancing the interfacial interactions and adhesion of CFRPs are discussed, providing insights for future trends.
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http://dx.doi.org/10.3390/polym17030267 | DOI Listing |
PLoS One
March 2025
School of Civil and Architectural Engineering, Liaoning University of Technology, Jinzhou, China.
The loss of bearing capacity in abandoned coal pillars within air-mining areas is prone to cause surface settlement issues, which poses a serious threat to the safety of surface buildings. This paper thoroughly investigates the mechanical behavior of carbon fiber reinforced plastic (CFRP) partially-confined coal cylinders under uniaxial compression, aiming to explore a cost-effective technology for reinforcing coal pillars. The influence of CFRP strips on the axial compression performance of coal cylinders was systematically analyzed by adjusting two parameters: the net spacing ratio and the number of CFRP strip layers.
View Article and Find Full Text PDFBMC Musculoskelet Disord
March 2025
Orthopedic Department, Spine Section, Hannover Medical School, DIAKOVERE Annastift, Anna-von-Borries-Str. 1-7, 30625, Hannover, Germany.
Background: Carbon-fiber-reinforced polyether ether ketone (CF-PEEK) is a radiolucent, non-metallic implant material used for instrumented lumbar spondylodesis. Clinical studies of pedicle screw systems employing this material, especially for degenerative indications, are scant.
Methods: We conducted a multicenter, prospective clinical study to assess clinical and radiographic outcomes in patients with symptomatic degenerative lumbar disk disease, including degenerative spondylolisthesis treated with a CF-PEEK pedicle screw and a transforaminal lumbar interbody fusion (TLIF) cage system.
Rev Sci Instrum
February 2025
Institute of Physics, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
We describe the design and operation of a high-stability Fabry-Pérot cavity, for laser stabilization in cavity quantum-electrodynamics experiments. Our design is based on an inexpensive and readily available uniaxial carbon-fiber reinforced polymer tube spacer, featuring an ultra-low thermal expansion coefficient. As a result, our 136 mm-long cavity, which has a finesse of 5160, shows a coefficient of thermal expansion of 1.
View Article and Find Full Text PDFBiomed Mater
March 2025
Department of Mechanical Engineering, Adiyaman University, Adiyaman, Turkey.
Sandwich structures are known for their excellent strength-to-weight ratio and are being increasingly used in the automotive, aerospace, marine, and construction sectors. These structures may also offer promising designs for other fields such as biomedical fixation devices, in which the combination of lightness and stiffness is of paramount importance. This study investigated the potential of fabricating orthopedic external ring fixators from sandwich panels to develop innovative designs and broaden the scope of sandwich-structure applications.
View Article and Find Full Text PDFJ Mater Chem B
February 2025
Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China.
Anisotropic composite valves that approximate natural heart valves are essential for the successful construction of tissue-engineered heart valves. In this work, anisotropic nylon (polyamides, PA) fiber membranes were prepared electrospinning and further composited with thermoplastic polyurethane (TPU) by the impregnation method to obtain anisotropic PA/TPU composite valves. Young's modulus of the PA/TPU composite valves in the axial and radial directions along the fibers was 85.
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