Recycling carbon fiber from composite waste and its reinforcing effect on polyvinylidene fluoride composite: Mechanical, morphology, and interface properties

2015 ◽  
Vol 38 (11) ◽  
pp. 2544-2552 ◽  
Author(s):  
Chenchen Song ◽  
Fei Wang ◽  
Yuan Liu ◽  
Xinling Wang ◽  
Bin Yang
Keyword(s):  
Carbon Fiber ◽  
Polyvinylidene Fluoride ◽  
Interface Properties ◽  
Reinforcing Effect

Preparation and Property of Epoxy Based Nano-SiO2/TiO2/Polyimide Hybrid Enhanced Sizing

2011 ◽  
Vol 335-336 ◽  
pp. 96-100
Author(s):  
Cun Zhou ◽  
Jian Li Cheng ◽  
Yu Sun
Keyword(s):  
Carbon Fiber ◽  
Sol Gel ◽  
Fiber Surface ◽  
Nano Particles ◽  
Interface Properties ◽  
Particle Size Analyzer ◽  
Complex Technology ◽  
Carbon Fiber Surface ◽  
Interlaminar Shear ◽  
Micro Morphology

Abstract: An epoxy based nano-SiO2/TiO2/polyimide hybrid enhanced sizing for carbon fiber was prepared by modified SiO2/TiO2precursor in PAA collosol with silane couple agent(WD-50) and eligibility surfactant via sol-gel reaction, and both ultrasonic cavitation and multi-complex technology were used during the process. The properties of PAA-SiO2-TiO2hybrid sizing and micro-morphology of carbon fiber surface were analyzed by FTIR, DSC, Particle Size Analyzer and STM. The results indicated that nanoscale SiO2•TiO2particles dispersed in the hybrid sizing film homogeneously, and a layer with nano particles was formed on carbon fiber surface after treated by the hybrid enhanceing sizing. The roughness was increased and interface properties of carbon fiber would be improved. At the same time both tensile strength and the interlaminar shear strength were increased obviously.

Effect of polyurethane sizing agent on interface properties of carbon fiber reinforced polycarbonate composites

2019 ◽  
Vol 136 (38) ◽  
pp. 47982
Author(s):  
Weisu Zhang ◽  
Changling Yang ◽  
Lili Yao ◽  
Zhihao Li ◽  
Shengxia Li ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Interface Properties ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced

Highly porous electrospun polyvinylidene fluoride (PVDF)-based carbon fiber

Carbon ◽  
2011 ◽  
Vol 49 (11) ◽  
pp. 3395-3403 ◽  
Author(s):  
Ying Yang ◽  
Andrea Centrone ◽  
Liang Chen ◽  
Fritz Simeon ◽  
T. Alan Hatton ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Polyvinylidene Fluoride ◽  
Highly Porous

scholarly journals Fixation of BiOI/BiOBr/MoS2 Powders on Fiber Cloths for Photocatalytic Degradation of Ammonia Nitrogen from Aqueous Solution

2020 ◽  
Vol 9 (1) ◽  
pp. 14
Author(s):  
Yi Wei ◽  
Peiwei Tang ◽  
Minfeng Huang ◽  
Yongzhang Pan
Keyword(s):  
Electron Microscopy ◽  
Carbon Fiber ◽  
Glass Fiber ◽  
Polyvinylidene Fluoride ◽  
Photocatalytic Performance ◽  
Solvothermal Method ◽  
Ammonia Nitrogen ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron

A novel photocatalyst powder, BiOI/BiOBr/MoS2, was synthesized by a simple solvothermal method. X-ray diffraction (XRD), specific surface area and pore size analyses, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray energy spectrometry (EDS) were utilized to characterize the prepared samples. After evaluating the photocatalytic performance of the catalyst, it was loaded on the glass fiber and carbon fiber by polyvinylidene fluoride (PVDF) and N-methylpyrrolidone, respectively. The photocatalytic activity of the composite was investigated by the degradation of ammonia nitrogen wastewater. The fiber cloth solved the problem of separation of powder from solution after reaction, and the presence of the binder reduces the agglomeration of the nanoparticles in the water. After four times repeated experiments, the degradation of simulate ammonia nitrogen wastewater by loaded glass fiber and loaded carbon fiber are 74.1% and 60.58%. Fixation of BiOI/BiOBr/MoS2 powders on fiber cloth solve the problem of difficult recovery of powder photocatalytic materials and it can be recycled, which has economic valuable.

Optimized Mechanical Performance of Carbon Fiber-Epoxy Composite Using Amino-Functionalized Graphene Nanoplatelets

2015 ◽  
Author(s):  
Mohammad K. Hossain ◽  
Md Mahmudur R. Chowdhury ◽  
Nydeia W. Bolden
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Epoxy Polymer ◽  
Epoxy Composites ◽  
Fiber Reinforced ◽  
Hot Press ◽  
Reinforcing Effect ◽  
Cfrp Composites ◽  
Carbon Fiber Reinforced ◽  
Carbon Fiber Epoxy

A systematic study has been conducted on processing and characterizing of carbon fiber reinforced epoxy polymer (CFRP) composites to enhance their properties through the optimization of graphene nanoplatelet (GNP). GNP having a two dimensional structure is composed of several layers of graphite nanocrystals stacked together. GNP is expected to provide better reinforcing effect in polymer matrix composites as a nanofiller along with greatly improved mechanical and thermal properties due to its planar structure and ultrahigh aspect ratio. GNP is also considered to be the novel nanofiller due to its exceptional functionalities, high mechanical strength, chemical stability, abundance in nature, and cost effectiveness. Moreover, it possesses an extremely high-specific surface area which carries a high level of transferring stress across the interface and provides higher reinforcement than carbon nanotubes (CNT) in polymer composites. Hence, this extensive research has been focused on the reinforcing effect of amino-functionalized GNP on mechanical properties of carbon fiber reinforced epoxy composites. Amine functionalized GNP was integrated in EPON 828 at different loadings, including 0.1, 0.2, 0.3, 0.4, and 0.5 wt%, as a reinforcing agent. GNP was infused into Epon 828 resin using a high intensity ultrasonic processor followed by a three roll milling for better dispersion. Epikure 3223 curing agent was then added to the modified resin and mixed using a high-speed mechanical stirrer. The mixture was then placed in a vacuum oven at 40 °C for 10 min to ensure the complete removal of entrapped bubbles and thus reduce the chance of void formation. Finally, both conventional and nanophased carbon fiber reinforced epoxy polymer (CFRP) composites were fabricated by employing a combination of hand lay-up and compression hot press techniques. Carbon woven fabrics were properly stacked into eleven layers while maintaining their parallel orientation. Modified epoxy resin was smeared uniformly on each fabric layer using a brush and a wooden roller. The fabric stack was then wrapped with a bleeder cloth and a nonporous Teflon cloth and placed on the plates of the hot press where pressure and temperature were controlled precisely to ascertain maximum wetting of fibers with matrix and compaction of the layup as well as curing. Temperature was kept at 60 °C for 1 hour to attain enough flow of resin at lower viscosity as compared to room temperature and at the same time not to let it flow out of the layup. Temperature was then increased to 100 °C and maintained for 1 hour to obtain completely cured carbon-epoxy composites. After completion of the curing cycles, the laminate was allowed to cool down slowly to avoid any unwanted shrinkage. The conventional CFRP composite were fabricated in a similar fashion. Mechanical properties were determined through flexure and tensile tests according to ASTM standards. In all cases, 0.4 wt% GNP infused epoxy nanocomposite exhibited the best properties. The 0.4 wt% GNP modified carbon fiber/epoxy composites exhibited 19% improvement in the flexure strength and 15% improvement in the flexure modulus. Tensile test results of CFRP composites showed a maximum improvement in the tensile strength and tensile modulus by about 18% and 19%, respectively, for the 0.4 wt% GNP-infused samples over the control sample. Both flexural and tensile properties were observed to reach the highest at the 0.4 wt% loading due to the better interfacial interaction and effective load transfer between the NH2-GNP and the epoxy resin. Furthermore, morphological analysis ensured better dispersion and improved interfacial adhesion between the matrix and the fiber for GNP reinforced composites.

scholarly journals The morphology and scaling law model of polyvinylidene fluoride/carbon fiber using electrospinning technique

2021 ◽  
Vol 1796 (1) ◽  
pp. 012076
Author(s):  
J Jauhari ◽  
M R Almafie ◽  
M Annisa ◽  
A Mataram ◽  
L Marlina ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Polyvinylidene Fluoride ◽  
Scaling Law ◽  
Electrospinning Technique
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