Improved Mechanical Properties of Composites Reinforced with Neutron-Irradiated Carbon Fibers

Unidirectional carbon fiber (CF) / Polyamide 6 (PA6) composites were prepared by stacking fabrics method. Due to the effect of the textile structure and rough surface of PA6 fabrics, slipping of carbon fibers (CFs) during the stacking process was prevented and uniformity of impregnation was improved. Meanwhile, the usage of PA6 fabrics resulted in the minimum level of void content of composites, which improved the mechanical properties of composites. Additionally, the void content of materials was associated with the mechanical properties of composites. The flexural strength of composite reached 819.58 MPa when its void content was 3.49%. Moreover, a model based on Darcy’s law was developed to simulate the impregnation behavior of PA6 in CFs which was made by stacking fabrics method. The resin flow was observed by using optical microscopy. The evolution of void content in composites was related to the processing parameters (holding time, processing temperature and processing pressure).The comparison between the experimental and simulated data showed that the model was reliable to describe the impregnation process.

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Influence of ozone treatment on microstructure and mechanical properties of pitch-based short carbon fiber-reinforced natural rubber

Journal of Elastomers & Plastics ◽

10.1177/0095244316644860 ◽

2016 ◽

Vol 49 (3) ◽

pp. 226-242 ◽

Cited By ~ 2

Author(s):

Junmei Cheng ◽

Shugao Zhao

Keyword(s):

Mechanical Properties ◽

Surface Roughness ◽

Natural Rubber ◽

Carbon Fibers ◽

Treatment Time ◽

Interfacial Interaction ◽

Ozone Treatment ◽

Effect Of Treatment ◽

Short Carbon ◽

Properties Of Composites

Composites of natural rubber (NR) reinforced with short carbon fibers (SCF) were prepared with two-roll open mill. Ozone treatment of carbon fibers was used to improve the interfacial interaction between fiber and matrix through chemical bonding and physical interlocking. The effect of treatment time on morphology and chemical component of SCF surface and mechanical properties of composites were thoroughly discussed. Results indicated that ozone treatment increased the surface roughness and the number of oxygen-containing groups. Compared with untreated SCF, tensile strength of NR-loaded SCF oxidized for 2.5 h reached the maximum values 26.9 MPa, and the increasing rate was 44.6%.

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EFFECT OF VARYING HIGH AND LOW-SPEED CHURNERS ON THE DISPERSION OF CARBON FIBERS IN SELF-COMPACTING CONCRETE FOR FLOW AND ELECTRO MECHANICAL PROPERTIES

i-manager’s Journal on Civil Engineering ◽

10.26634/jce.9.4.15904 ◽

2019 ◽

Vol 9 (4) ◽

pp. 9 ◽

Cited By ~ 1

Author(s):

GULL IFTEKAR ◽

M. A. TANTRAY ◽

◽

Keyword(s):

Mechanical Properties ◽

Carbon Fibers ◽

Self Compacting Concrete ◽

Low Speed

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Influence of graphitization conditions on structural and mechanical properties of polyacrylonitrile-based carbon fibers

Perspektivnye Materialy ◽

10.30791/1028-978x-2018-2-46-59 ◽

2018 ◽

pp. 46-59

Author(s):

V. M. Samoilov ◽

◽

D. B. Verbets ◽

I. A. Bubnenkov ◽

N. N. Steparyova ◽

...

Keyword(s):

Mechanical Properties ◽

Carbon Fibers

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Effect of Titanium Carbide Particles on Mechanical Properties of Aluminum Matrix Composites

Wasit Journal of Engineering Sciences ◽

10.31185/ejuow.vol5.iss2.55 ◽

2017 ◽

Vol 5 (2) ◽

pp. 20-30

Author(s):

Zaman Khalil Ibrahim

Keyword(s):

Mechanical Properties ◽

Titanium Carbide ◽

Compression Strength ◽

Volume Fraction ◽

Aluminum Matrix ◽

Aluminum Matrix Composites ◽

Matrix Composites ◽

Powder Metallurgy Technique ◽

Carbide Particles ◽

Properties Of Composites

In this research aluminum matrix composites (AMCs) was reinforced by titanium carbide (TiC) particles and was produced. Powder metallurgy technique (PM) has been used to fabricate AMCs reinforced with various amounts (0%, 4%, 8%, 12%, 16% and 20% volume fraction) of TiC particles to study the effect of different volume fractions on mechanical properties of the Al-TiC composites. Measurements of compression strength and hardness showed that mechanical properties of composites increased with an increase in volume fraction of TiC Particles. Al-20 % vol. TiC composites exhibited the best properties with hardness value (97HRB) and compression strength value (275Mpa).

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Mechanical properties of structures produced by 3D printing from composite materials

MATEC Web of Conferences ◽

10.1051/matecconf/201925401018 ◽

2019 ◽

Vol 254 ◽

pp. 01018

Author(s):

František Bárnik ◽

Milan Vaško ◽

Milan Sága ◽

Marián Handrik ◽

Alžbeta Sapietová

Keyword(s):

Mechanical Properties ◽

Composite Materials ◽

3D Printing ◽

Carbon Fibers ◽

3D Printer

By 3D printing it is possible to create different structures with different fiber-laying directions. These structures can be created depending on the type of 3D printer and its software. The Mark Two printer allows printing Onyx, a material based on nylon in combination with microcarbon fibers. Onyx can be used alone or reinforced with kevlar, glass or carbon fibers. This article deals with 3D printing and evaluation of mechanical properties of printed samples.

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Investigation of the Effect of the Length and Content of Carbon Fibers on the Properties of Polyphenylene Sulfide

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.869.474 ◽

2020 ◽

Vol 869 ◽

pp. 474-480

Author(s):

Azamat L. Slonov ◽

Ismel V. Musov ◽

Elena V. Rzhevskaya ◽

Azamat Zhansitov ◽

Svetlana Yu. Khashirova

Keyword(s):

Mechanical Properties ◽

Impact Strength ◽

Heat Resistance ◽

Carbon Fibers ◽

Filler Content ◽

Sharp Decrease ◽

Polyphenylene Sulfide ◽

Average Particle ◽

Melt Flow Rate ◽

Particle Length

The article presents the results of a study of the effect of milled and chopped carbon fibers, with an average particle length of 0.2 and , respectively, on the mechanical properties of polyphenylene sulfide and its heat resistance. It was found that the introduction of carbon fibers leads to a significant decrease in the melt flow rate. It was shown that after a sharp decrease in impact strength at 10 % content of carbon fibers, its inverse improvement occurs with an increase in the filler content. Composites containing carbon fibers with length demonstrate higher impact strength. The introduction of a filler leads to a significant increase in the elastic modulus and strength of polyphenylene sulfide and its heat resistance.

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Mechanical, Thermal and Rheological Properties of Polyethylene-Based Composites Filled with Micrometric Aluminum Powder

Materials ◽

10.3390/ma13051242 ◽

2020 ◽

Vol 13 (5) ◽

pp. 1242

Author(s):

Olga Mysiukiewicz ◽

Paulina Kosmela ◽

Mateusz Barczewski ◽

Aleksander Hejna

Keyword(s):

Mechanical Properties ◽

Melt Flow Index ◽

Tensile Tests ◽

Mechanical Analysis ◽

Flow Index ◽

Scanning Calorimetry ◽

Metal Composites ◽

Pre Treatment ◽

The Impact ◽

Properties Of Composites

Investigations related to polymer/metal composites are often limited to the analysis of the electrical and thermal conductivity of the materials. The presented study aims to analyze the impact of aluminum (Al) filler content (from 1 to 20 wt%) on the rarely investigated properties of composites based on the high-density polyethylene (HDPE) matrix. The crystalline structure, rheological (melt flow index and oscillatory rheometry), thermal (differential scanning calorimetry), as well as static (tensile tests, hardness, rebound resilience) and dynamic (dynamical mechanical analysis) mechanical properties of composites were investigated. The incorporation of 1 and 2 wt% of aluminum filler resulted in small enhancements of mechanical properties, while loadings of 5 and 10 wt% provided materials with a similar performance to neat HDPE. Such results were supported by the lack of disturbances in the rheological behavior of composites. The presented results indicate that a significant content of aluminum filler may be introduced into the HDPE matrix without additional pre-treatment and does not cause the deterioration of composites’ performance, which should be considered beneficial when engineering PE/metal composites.

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Mechanical and structural properties of composites made from recycled and virgin polyethylene terephthalate (PET) and metal chip or mesh wire

MATEC Web of Conferences ◽

10.1051/matecconf/201929906007 ◽

2019 ◽

Vol 299 ◽

pp. 06007

Author(s):

Mircea Aurelian Antoniu Rusu ◽

Sever-Adrian Radu ◽

Catalin Moldovan ◽

Codruta Sarosi ◽

Ionela Amalia Mazilu (Moldovan) ◽

...

Keyword(s):

Mechanical Properties ◽

Polyethylene Terephthalate ◽

Processing Parameters ◽

Sem Images ◽

Major Drawback ◽

Recycled Pet ◽

Plastic Processing ◽

Metal Chip ◽

Intense Research ◽

Properties Of Composites

Although polyethylene terephthalate (PET) is a champion of recycling, intense research is being done to find new solutions for using recycled plastic. This study aims to characterize the mechanical andstructural properties (SEM- scanning electron microscopy) of products made from recycled metal swarf or mesh wire with recycled plastic (PET) in comparison with virgin plastic. Samples manufactured from virgin and recycled PET are made by pressing and high temperature. The loss of mechanical properties ofproducts made from recycled plastic is a major drawback that influences their use. SEM images confirm that the dispersion and distribution of the PET phase is not very uniform. By addition of virgin plastic in various compositions with recycled plastic, processing parameters and mechanical properties can be optimized.

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