Investigation of the impact effects of thermoplastic polyurethane reinforced with multi-walled carbon nanotube for soldier boot under the blast load

The purpose of the study is to reduce the damage of the soldier boots, which subject the blast load. The boot sole was reinforced to perform the study. Thermoplastic polyurethane (TPU) and multi-walled carbon nanotube (MWCNT) materials were used for this reinforcement. In addition, TPU 508 material was used as energy absorber, and Carbon-Kevlar fiber composite was utilized to decrease the impact effect of blast load. Acceleration test system was used to simulate the blast load. Three different boots were used in the study (ordinary boot, semi-damped boot, and fully damped boot). Twin-screw extruder was used to blend melted material to prepare polyurethane MWCNT with weight fraction from 1% to 5%. In addition, mechanical properties of these materials were obtained by tensile tests. The best mechanical properties were obtained with the weight fraction of 1% MWCNT. Acceleration test was applied to measure the energy damping performance of new designed boot sole. As a result of the study, the best reduction on the blast load was obtained nearly 12% with the fully damped soldier boot.

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Production of Multi-Walled Carbon Nanotube and Graphene Doped Thermoplastic Polyurethane Fiber and Investigation of Mechanical Properties

ECS Journal of Solid State Science and Technology ◽

10.1149/2162-8777/abc3cc ◽

2020 ◽

Vol 9 (10) ◽

pp. 101011 ◽

Cited By ~ 1

Author(s):

Vildan Özkan ◽

Ahmet Yapici ◽

Abdullah Özkan

Keyword(s):

Mechanical Properties ◽

Carbon Nanotube ◽

Thermoplastic Polyurethane ◽

Multi Walled Carbon Nanotube

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Mechanical Recycling of Low-Density Polyethylene/Carbon Nanotube Composites and its Effect on Material Properties

Volume 2: Processes; Materials ◽

10.1115/msec2019-2929 ◽

2019 ◽

Author(s):

Felicia Stan ◽

Nicoleta-Violeta Stanciu ◽

Catalin Fetecau ◽

Ionut-Laurentiu Sandu

Keyword(s):

Mechanical Properties ◽

Carbon Nanotube ◽

Injection Molding ◽

Low Density Polyethylene ◽

Low Density ◽

Mechanical Recycling ◽

Multi Walled Carbon Nanotube ◽

Nanotube Composites ◽

Carbon Nanotube Composites ◽

The Impact

Abstract In this paper, the impact of recycling and remanufacturing on the behavior of low-density polyethylene/multi-walled carbon nanotube (LDPE/MWCNT) composites is investigated. LDPE/MWCNT composites with 0.1–5 wt.%, previously manufactured by injection molding, were mechanically recycled and remanufactured by injection molding and 3D filament extrusion, and the rheological, electrical, and mechanical properties were analyzed and compared with those of virgin composites under the same conditions. Experimental results demonstrate that the recycled LDPE/MWCNT composites have similar rheological, electrical, and mechanical properties to virgin composites, if not better. Therefore, the recycled LDPE/MWCNT composites have a great potential for being used in engineering applications, while reducing the environmental impact.

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Mechanical Recycling of Low-Density Polyethylene/Carbon Nanotube Composites and Its Effect on Material Properties

Journal of Manufacturing Science and Engineering ◽

10.1115/1.4044101 ◽

2019 ◽

Vol 141 (9) ◽

Author(s):

Felicia Stan ◽

Nicoleta-Violeta Stanciu ◽

Catalin Fetecau ◽

Ionut-Laurentiu Sandu

Keyword(s):

Mechanical Properties ◽

Carbon Nanotube ◽

Injection Molding ◽

Low Density Polyethylene ◽

Low Density ◽

Mechanical Recycling ◽

Multi Walled Carbon Nanotube ◽

Nanotube Composites ◽

Carbon Nanotube Composites ◽

The Impact

In this paper, the impact of recycling and remanufacturing on the behavior of low-density polyethylene/multi-walled carbon nanotube (LDPE/MWCNT) composites is investigated. LDPE/MWCNT composites with 0.1–5 wt%, previously manufactured by injection molding, were mechanically recycled and remanufactured by injection molding and 3D filament extrusion, and the rheological, electrical, and mechanical properties were analyzed and compared with those of virgin composites under the same conditions. Experimental results demonstrate that the recycled LDPE/MWCNT composites have similar rheological, electrical, and mechanical properties as that of virgin composites, if not better. Therefore, the recycled LDPE/MWCNT composites have a great potential for being used in engineering applications, while reducing the environmental impact.

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Mechanical Properties Of Polyaniline / Multi-walled Carbon Nanotube Composite Films

MRS Proceedings ◽

10.1557/proc-791-q10.3 ◽

2003 ◽

Vol 791 ◽

Cited By ~ 4

Author(s):

P. C. Ramamurthy ◽

W. R. Harrell ◽

R. V. Gregory ◽

B. Sadanadan ◽

A. M. Rao

Keyword(s):

Mechanical Properties ◽

Carbon Nanotubes ◽

Carbon Nanotube ◽

Composite Films ◽

Weight Percent ◽

Organic Electronic Devices ◽

Multiwalled Carbon ◽

Multi Walled Carbon Nanotube ◽

Contact Devices ◽

Carbon Nanotube Composite

ABSTRACTHigh molecular weight polyaniline / multi-walled carbon nanotube composite films were fabricated using solution processing. Composite films with various weight percentages of multiwalled carbon nanotubes were fabricated. Physical properties of these composites were analyzed by thermogravimetric analysis, tensile testing, and scanning electron microscopy. These results indicate that the addition of multiwalled nanotubes to polyaniline significantly enhances the mechanical properties of the films. In addition, metal–semiconductor (composite) (MS) contact devices were fabricated, and it was observed that the current level in the films increased with increasing multiwalled nanotube content. Furthermore, it was observed that polyaniline containing one weight percent of carbon nanotubes appears to be the most promising composition for applications in organic electronic devices.

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