Measurement of carbon nanotube–polymer interfacial strength

2003 ◽  
Vol 82 (23) ◽  
pp. 4140-4142 ◽  
Author(s):  
Asa H. Barber ◽  
Sidney R. Cohen ◽  
H. Daniel Wagner
Keyword(s):  
Carbon Nanotube ◽  
Interfacial Strength

Single-walled carbon nanotube-derived novel structural material

2006 ◽  
Vol 21 (6) ◽  
pp. 1537-1542 ◽  
Author(s):  
Go Yamamoto ◽  
Yoshinori Sato ◽  
Toru Takahashi ◽  
Mamoru Omori ◽  
Toshiyuki Hashida ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotube ◽  
Interfacial Strength ◽  
Temperature Treatment ◽  
High Temperature Treatment ◽  
Processing Temperature ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Plasma Sintering ◽  
Spark Plasma

Binder-free macroscopic single-walled carbon nanotube (SWCNT) solids were prepared by spark plasma sintering (SPS) of purified SWCNTs. The effects of processing temperatures and pressures on the mechanical properties of the SWCNT solids and structural change of SWCNTs in the SWCNT solids were investigated. Transmission electron microscope observation of the SWCNT solids revealed thatthe high-temperature treatment has transformed some part of the SWCNTs into amorphous-like structure and the rest of the SWCNTs remained buried into the above structure. The mechanical properties of the SWCNT solids increased with the increasing processing temperature, probably reflecting the improvement of interfacial strength between SWCNTs and disordered structure of carbon due to the spark plasma generated in the SPS process.

Estimating the Cohesive Zone Model Parameters of Carbon Nanotube–Polymer Interface for Machining Simulations

2014 ◽  
Vol 136 (3) ◽  
Author(s):  
Lingyun Jiang ◽  
Chandra Nath ◽  
Johnson Samuel ◽  
Shiv G. Kapoor
Keyword(s):  
Carbon Nanotube ◽  
Cohesive Zone ◽  
Cohesive Zone Model ◽  
Interfacial Strength ◽  
Weight Fraction ◽  
Model Parameters ◽  
Zone Model ◽  
Fe Model ◽  
Polymer Interface ◽  
Two Parameters

The failure mechanisms encountered during the machining of carbon nanotube (CNT) polymer composites are primarily governed by the strength of the CNT–polymer interface. Therefore, the interface should be explicitly modeled in microstructure-level machining simulations for these composites. One way of effectively capturing the behavior of this interface is by the use of a cohesive zone model (CZM) that is characterized by two parameters, viz., interfacial strength and interfacial fracture energy. The objective of this study is to estimate these two CZM parameters of the interface using an inverse iterative finite element (FE) approach. A microstructure-level 3D FE model for nanoindentation simulation has been developed where the composite microstructure is modeled using three distinct phases, viz., the CNT, the polymer, and the interface. The unknown CZM parameters of the interface are then determined by minimizing the root mean square (RMS) error between the simulated and the experimental nanoindentation load–displacement curves for a 2 wt. % CNT–polyvinyl alcohol (PVA) composite sample at room temperature and quasi-static strain state of up to 0.04 s−1, and then validated using the 1 wt. % and 4 wt. % CNT–PVA composites. The results indicate that for well-dispersed and aligned CNT–PVA composites, the CZM parameters of the interface are independent of the CNT loading in the weight fraction range of 1–4%.

Inclined slit-based pullout method for determining interfacial strength of multi-walled carbon nanotube–alumina composites

Carbon ◽  
2014 ◽  
Vol 78 ◽  
pp. 439-445 ◽  
Author(s):  
Yo Nozaka ◽  
Weili Wang ◽  
Keiichi Shirasu ◽  
Go Yamamoto ◽  
Toshiyuki Hashida
Keyword(s):  
Carbon Nanotube ◽  
Interfacial Strength ◽  
Multi Walled Carbon Nanotube ◽  
Alumina Composites

scholarly journals A controllable way to measure the interfacial strength between carbon nanotube and polymer using a nanobridge structure

Carbon ◽  
2017 ◽  
Vol 116 ◽  
pp. 510-517 ◽  
Author(s):  
Min Nie ◽  
Dilhan M. Kalyon ◽  
Kishore Pochiraju ◽  
Frank T. Fisher
Keyword(s):  
Carbon Nanotube ◽  
Interfacial Strength

scholarly journals Atomistic QM/MM simulations of the strength of covalent interfaces in carbon nanotube–polymer composites

2020 ◽  
Vol 22 (21) ◽  
pp. 12007-12014
Author(s):  
Jacek R. Gołębiowski ◽  
James R. Kermode ◽  
Peter D. Haynes ◽  
Arash A. Mostofi
Keyword(s):  
Carbon Nanotube ◽  
Polymer Composites ◽  
Interfacial Strength ◽  
Pull Out

We use a QM/MM approach to simulate CNT pull-out from crosslinked polyethylene studying how interfacial strength depends on its chemistry.

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