Strong Anisotropy and Ultralow Percolation Threshold in Multiscale Composites Modified by Carbon Nanotubes Coated Hollow Glass Fiber

2018 ◽  
Vol 20 (7) ◽  
pp. 1800077
Author(s):  
Jie Zhang ◽  
Alexei A. Bokov ◽  
Shang-Lin Gao ◽  
Nan Zhang ◽  
Wei Ren ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Percolation Threshold ◽  
Glass Fiber ◽  
Strong Anisotropy ◽  
Hollow Glass ◽  
Multiscale Composites

Effect of silane hydrolysis on the interfacial adhesion of carbon nanotubes/glass fiber fabric-reinforced multiscale composites

2016 ◽  
Vol 88 (4) ◽  
pp. 379-391 ◽  
Author(s):  
Shaohua Zeng ◽  
Mingxia Shen ◽  
Pengpeng Duan ◽  
Yijiao Xue ◽  
Zhuying Wang
Keyword(s):  
Carbon Nanotubes ◽  
Glass Fiber ◽  
Interfacial Adhesion ◽  
Flexural Rigidity ◽  
Multiwall Carbon Nanotubes ◽  
Industrial Grade ◽  
Ultrasonic Assisted ◽  
Interlaminar Shear ◽  
Initial Storage ◽  
Multiscale Composites

Three types of multiwall carbon nanotubes (MCNTs)/glass fiber fabrics (MGf) were prepared by dispersing industrial-grade MCNTs onto commercial E-glass fiber fabrics (GFfs) through an ultrasonic-assisted impregnation deposition method. The multiscale MGf-reinforced composites were fabricated by the vacuum infusion process. The effect of γ-aminopropyltrimethoxysilane (APS) or APS hydrolysis on the MCNT dispersion and the interfacial bonding between MCNTs and glass fiber were investigated by Fourier transform infrared spectroscopy, field-emission scanning electron microscopy, energy dispersive X-ray spectroscopy and their flexural stiffness, respectively. The interfacial adhesion of MGf composites was evaluated by interlaminar shear strength (ILSS) and dynamic mechanical thermal analysis. The results indicated that MCNTs on the MGf surface could form an interpenetrating network and act as anchors to interlock glass fiber with epoxy. The initial storage modulus and glass transition temperature of the MGf composites clearly increased, while the first loss factor of the MGf composites decreased by 30.0–45.0% compared with that of the GFf composite. Whether or not APS was hydrolyzed, it helped the MCNTs disperse on the GFf surface by chemical bonds. The ILSS of the multiscale composite with APS-treated MCNTs was enhanced significantly, while that with hydrolyzed APS-treated MCNTs (MGf-h) had a slight increase. APS hydrolysis increased the flexural rigidity of the MGf-h.

An Innovative Method to Reduce Percolation Threshold of Carbon Nanotubes Filled Nylon6/Polystyrene Blends

2012 ◽  
Vol 557-559 ◽  
pp. 654-658
Author(s):  
Chang Lu ◽  
Xin Hui Huang ◽  
Jia Xi Wang ◽  
Xiao Ning Hu
Keyword(s):  
Carbon Nanotubes ◽  
Maleic Anhydride ◽  
Percolation Threshold ◽  
Polymer Blend ◽  
Immiscible Polymer Blend ◽  
Innovative Method ◽  
Immiscible Polymer ◽  
Selective Localization

Selective localization of carbon nanotubes (CNTs) at the interface of immiscible polymer blend was achieved by the method that poly(styrene-co-maleic anhydride) (SMA) was first reacted with CNTs, and then blended with nylon6/polystyrene (PA6/PS). In the PA6/PS blends, CNTs was localized in PA6 phase and the percolation threshold was 2wt%. However, for the PA6/PS/(SMA- CNTs) composites, TEM results showed that most of CNTs were selectively localized in matrix, but some of tubes were induced by SMA to disperse at the interface. The localization of CNTs at the interface caused the percolation threshold of PA6/PS/(SMA- CNTs) was only 0.33 wt%, which is much lower than that of PA6/PS/ CNTs.

Properties of poly(lactic acid)/montmorillonite/carbon nanotubes nanocomposites: determination of percolation threshold

2021 ◽  
Author(s):  
Olawale Monsur Sanusi ◽  
Abdelkibir Benelfellah ◽  
Lazaros Papadopoulos ◽  
Zoe Terzopoulou ◽  
Dimitrios N. Bikiaris ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Lactic Acid ◽  
Percolation Threshold ◽  
Poly Lactic Acid

Effect of the addition of aliphatic diamine-functionalized carbon nanotubes on the interfacial adhesion of glass fiber/epoxy composites

2021 ◽  
pp. 004051752110519
Author(s):  
Yecheng Fan ◽  
Shen Ziyue ◽  
Shaohua Zeng ◽  
Pengpeng Chen ◽  
Ying Xu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Glass Fiber ◽  
Interfacial Adhesion ◽  
Control Sample ◽  
Epoxy Composites ◽  
Aliphatic Diamine ◽  
Uniform Dispersion ◽  
Fiber Matrix ◽  
Interlaminar Shear ◽  
Chain Lengths

To improve the interfacial adhesion of glass fiber (GF)/epoxy composites, the GF surface was treated by dispersing aliphatic diamine-functionalized multi-walled carbon nanotubes (MWCNTs). Carboxyl MWCNTs were first modified by aliphatic diamine with different alkyl chain lengths and then deposited on the surface of GF. The effect of aliphatic diamine chain lengths on the MWCNTs’ dispersion and interfacial properties of resultant composites was investigated in detail. The results showed that uniform dispersion of MWCNTs and strong fiber/matrix interfacial adhesion could be achieved, based on the grafting of 1,8-octanediamine onto MWCNTs. Compared with the control sample, the interlaminar shear, flexural, and tensile strengths of the treated composites increased by 41%, 29%, and 30%, respectively; the interlaminar fracture toughness and storage modulus in the glass region were significantly enhanced; and the glass transition temperature increased by more than 8°C. This work demonstrates that the carbon nanotubes functionalized by appropriate chain lengths of amine modifier can improve the fiber/matrix interfacial interactions and thus enhance the strength, toughness, and stiffness of fiber-reinforced composites.

Self-heating and deicing epoxy/glass fiber based carbon nanotubes buckypaper composite

2018 ◽  
Vol 54 (2) ◽  
pp. 1351-1362 ◽  
Author(s):  
M. Tarfaoui ◽  
A. El Moumen ◽  
M. Boehle ◽  
O. Shah ◽  
K. Lafdi
Keyword(s):  
Carbon Nanotubes ◽  
Glass Fiber ◽  
Self Heating
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