Chemically grafting carbon nanotubes onto carbon fibers for enhancing interfacial strength in carbon fiber/HDPE composites

2018 ◽  
Vol 50 (5) ◽  
pp. 552-557 ◽  
Author(s):  
Lv Yongqiang ◽  
Peng Chunzheng
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Fiber ◽  
Carbon Fibers ◽  
Interfacial Strength

THE STRENGTH OF NANOCOMPOSITES POLYMER / 2D-NANOFILLER WITH ULTRASMALL FILLER CONTENTS

2020 ◽  
pp. 3-6
Author(s):  
Gasan M. Magomedov ◽  
Guseyn M. Magomedov ◽  
I. V. Dolbin
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Fibers ◽  
Interfacial Adhesion ◽  
Fracture Process ◽  
Interfacial Strength ◽  
Geometrical Parameters ◽  
Correct Description ◽  
Two Phase ◽  
Small Aggregation ◽  
Appreciable Reduction

The theoretical model, using the notions of fractal analysis is proposed for description of strength of nanocomposites polymer/2D-nanofiller on the example of nanocomposites polyvinylalcohol/boron nitride. For correct description of strength of these two-phase nanomaterial the knowledge of initial characteristics of matrix polymer (stress of fracture), geometrical parameters of nanofiller and level of interfacial adhesion polymer matrix-nanofiller is necessary. The indicated level, characterizing by shear interfacial strength, was determined theoretically within the framework of fractal conception of adhesion. Its absolute values found high enough – they are comparable with this characteristic in systems polymer-carbon nanotubes and are higher essentially than in systems polymer-microfiber (glassy and carbon fibers). This factor defines high enough strength of the considered nanocomposites. The important factor for fracture process of nanomaterials is aggregation of initial platelets of nanofiller, which forms “packets” (tactoids) of such platelets. The relatively small aggregation degree of nanofiller gives appreciable reduction of strength of nanocomposites polymer/2D-nanofiller. The indicated reduction is connected with transition of 2D-nanofiller structure from exfoliated to intercalated one, i.e. from separate platelets to their tactoids.

Effect of CNT Grafting on Carbon Fibers on Impact Properties of CFRTP Laminate

2018 ◽  
Vol 774 ◽  
pp. 410-415 ◽  
Author(s):  
Kazuto Tanaka ◽  
Ken Uzumasa ◽  
Tsutao Katayama
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Carbon Fibers ◽  
Interfacial Strength ◽  
Fiber Surface ◽  
Impact Properties ◽  
Specific Strength ◽  
Out Of Plane ◽  
Reinforced Thermoplastics ◽  
The Impact

Carbon fiber reinforced thermoplastics (CFRTP) are expected to be used as a structural material for aircraft and automobiles not only for their mechanical properties such as high specific strength and high specific rigidity but also for their high recyclability and short molding time. Generally, in a composite material having a laminated structure, interlaminar delamination is often caused by an out-of-plane impact, so the interlayer property plays an important role in the mechanical properties. It has been reported that the fiber/matrix interfacial strength increases by grafting carbon nanotubes (CNT) on the carbon fiber surface. In this study, CNT grafted carbon fibers were used for reinforcement of CFRTP laminate for the improvement of impact properties of CFRTP laminates. The impact absorbed energy of the CFRTP laminate using CNT grafted carbon fibers as reinforcing fiber was higher than that using untreated CF.

Grafting carbon nanotubes densely on carbon fibers by poly(propylene imine) for interfacial enhancement of carbon fiber composites

Carbon ◽  
2020 ◽  
Vol 158 ◽  
pp. 704-710 ◽  
Author(s):  
Qiang Chen ◽  
Qingyu Peng ◽  
Xu Zhao ◽  
Hao Sun ◽  
Shasha Wang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Fiber ◽  
Carbon Fibers ◽  
Fiber Composites ◽  
Carbon Fiber Composites ◽  
Poly Propylene

scholarly journals Effect of Carbon Nanotubes Deposition Form on Carbon Fiber and Polyamide Resin Interfacial Strength

2016 ◽  
Vol 65 (8) ◽  
pp. 586-591 ◽  
Author(s):  
Kazuto TANAKA ◽  
Yuki OKUMURA ◽  
Tsutao KATAYAMA ◽  
Yusuke MORITA
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Fiber ◽  
Interfacial Strength

A high-performance flexible and weavable asymmetric fiber-shaped solid-state supercapacitor enhanced by surface modifications of carbon fibers with carbon nanotubes

2016 ◽  
Vol 4 (46) ◽  
pp. 18164-18173 ◽  
Author(s):  
Xiaoyu Lu ◽  
Yang Bai ◽  
Ranran Wang ◽  
Jing Sun
Keyword(s):  
Carbon Nanotubes ◽  
Activated Carbon ◽  
Solid State ◽  
Carbon Fiber ◽  
Carbon Fibers ◽  
High Performance ◽  
Negative Electrode ◽  
Surface Modifications ◽  
High Energy ◽  
Power Densities

A carbon fiber-based positive electrode enhanced by CNT modification with NiCo(OH)x and a negative electrode functionalized with activated carbon were prepared. The supercapacitor showed high energy and power densities.

scholarly journals CVD Synthesis of Hierarchical 3D MWCNT/Carbon-Fiber Nanostructures

2008 ◽  
Vol 2008 ◽  
pp. 1-7 ◽  
Author(s):  
Toma Susi ◽  
Albert G. Nasibulin ◽  
Hua Jiang ◽  
Esko I. Kauppinen
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Carbon Fiber ◽  
Multiwalled Carbon Nanotubes ◽  
Carbon Fibers ◽  
Gas Flow ◽  
Carbon Precursor ◽  
Optimal Temperature ◽  
Multiwalled Carbon ◽  
Cvd Synthesis

Multiwalled carbon nanotubes (MWCNTs) were synthesized by CVD on industrially manufactured highly crystalline vapor-grown carbon fibers (VGCFs). Two catalyst metals (Ni and Fe) and carbon precursor gases (C2H2and CO) were studied. The catalysts were deposited on the fibers by sputtering and experiments carried out in two different reactors. Samples were characterized by electron microscopy (SEM and TEM). Iron was completely inactive as catalyst with bothC2H2and CO for reasons discussed in the paper. The combination of Ni andC2H2was very active for secondary CNT synthesis, without any pretreatment of the fibers. The optimal temperature for CNT synthesis was750∘C, with total gas flow of 650 cm3min⁡−1ofC2H2,H2, and Ar in 1.0:6.7:30 ratio.

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