Effect of Step-Heating on Microstructure and Mechanical Properties of Linear Low Density Polyethylene/Multi-Walled Carbon Nanotube Composites Prepared via Melt Mixing Process

Step-heating (single-and four-step heating) was used in the melt-mixing preparation of linear low density polyethylene (LLDPE)/multi-walled carbon nanotube (MWNT) composites. The MWNT in the composites were used at volume fractions of 0, 1, 3, 5, and 10 vol% (four-step heating), and 0, 1, 3, and 5 vol% (single-step heating). The effects of the heating steps on the microstructure of the LLDPE/MWNT composites were studied. An ultimate tensile testing machine and an impact testing machine were used to characterize the mechanical properties of the composites. The sample prepared using four-step heating had a lower porosity than the sample prepared using single-step heating. The sample with 3 vol% MWNT that was prepared using four-step heating had tensile strength, elastic modulus, and impact strength values that were higher than those of the other samples.

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Linear Low-Density Polyethylene/Ethylene-Octene Copolymer/Multi-Walled Carbon Nanotube Composites with Microwave Absorbing Properties

Polymer-Plastics Technology and Engineering ◽

10.1080/03602550903413789 ◽

2010 ◽

Vol 49 (5) ◽

pp. 481-486 ◽

Cited By ~ 14

Author(s):

Qincai Ling ◽

Jianzhong Sun ◽

Qian Zhao ◽

Qiyun Zhou

Keyword(s):

Carbon Nanotube ◽

Low Density Polyethylene ◽

Low Density ◽

Linear Low Density Polyethylene ◽

Microwave Absorbing Properties ◽

Multi Walled Carbon Nanotube ◽

Nanotube Composites ◽

Carbon Nanotube Composites ◽

Ethylene Octene Copolymer ◽

Microwave Absorbing

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Enhanced mechanical properties of a multiwall carbon nanotube attached pre-stitched graphene oxide filled linear low density polyethylene composite

Journal of Materials Chemistry A ◽

10.1039/c3ta14393g ◽

2014 ◽

Vol 2 (8) ◽

pp. 2681-2689 ◽

Cited By ~ 30

Author(s):

Nam Hoon Kim ◽

Tapas Kuila ◽

Joong Hee Lee

Keyword(s):

Graphene Oxide ◽

Carbon Nanotube ◽

Low Density Polyethylene ◽

Multiwall Carbon Nanotube ◽

Low Density ◽

Linear Low Density Polyethylene ◽

Polyethylene Composite ◽

Multi Walled Carbon Nanotube ◽

Multiwall Carbon ◽

Reinforcing Filler

Multi-walled carbon nanotube attached pre-stitched graphene oxide used as a reinforcing filler in linear low density polyethylene (LLDPE) composite. The tensile strength of the composite with 1 wt. % filler was enhanced dramatically by 148.7% compared to that of the neat LLDPE.

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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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