Thermal resistant, mechanical and electrical properties of a novel ultrahigh-content randomly-oriented CNTs reinforced SiC matrix composite-sheet

Yang, Lingwei; Zhang, X.S.; Liu, H.T.; Zu, Mei

doi:10.1016/j.compositesb.2017.03.039

Cited by 37 publications

(9 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Later, formations of graphite pathways in the polymer host are revealed. e high content of graphite will form a number of hopping channels that are considered as alternative paths for electrical transportations [6], thus driving electron conductive properties of the graphite. is phenomenon will be discussed in the following section.…”

Section: Resultsmentioning

confidence: 99%

“…erefore, in order to maximize their usage, modification through addition of specific additives as filler is needed. Inspired by the findings in [2], carbon-based composites, such as carbon black (CB) [3,4], carbon nanotubes [5][6][7], activated carbon [8,9], and graphene [10,11], have attracted attention due to their excellent mechanical, thermal, and electrical properties which make them excellent candidates for multidisciplinary area.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Functionalized Waterborne Polyurethane-Based Graphite-Reinforced Composites

Abdullah

Rus

Abdullah

2019

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

The synthesis and characterization of waterborne polyurethane-based oxidized graphite- (WPUG-) reinforced composites is disclosed. The morphology-structure relations of WPUG composites are studied using field emission scanning electron microscopy (FESEM) and Fourier transform infrared (FTIR) spectroscopy. Prior to this, it is confirmed that, in the WPUG composites, the graphite particles containing functional groups such as hydroxyl and carboxylic groups are randomly distributed and attributed to the formation of interconnected interface within the polymeric composites. This promotes enhancement in modulus and tensile strength up to ∼440% and ∼100%, respectively. Significantly, these results were correlated with viscoelastic properties in which the composites show positive response to graphite addition. Further studies in optical properties consequently attribute decreasing values in optical energy band gap (Eg) which afterwards took the leads to electrical conductivity (σ). Aptly, the composites WPUG20, WPUG25, and WPUG30 were found to possess favorable electrical conductivity through the two-point probe method. This revealed the improvement in electrical properties with promising potential as alternative petroleum-based composites to generate energy from the renewable resources and also apply greener ways for energy consumption.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Functionalized Waterborne Polyurethane-Based Graphite-Reinforced Composites

Abdullah

Rus

Abdullah

2019

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

show abstract

“…It is predicted that the graphite is not only a graphite but rather consists of several layers or aggregation of graphite sheets. They form amounts of hopping channels that were considered as alternative path to the electrical transportations [4], thus drives electron conductive properties of the graphite. This phenomenon will be discussed in the following section.…”

Section: Optical Morphology and Structural Viewmentioning

confidence: 99%

“…These drawbacks have lead to the growth in the research for electrically conductive polymer material. At present, favourable filler like carbon black (CB) [1], carbon nanotubes [2][3][4], activated carbon [5] and graphene [6][7][8] has changed the classical renewable polymer as insulator into conductive polymer composites (CPCs). Moreover, CPC have many advantages over metallic conductors.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Graphite Functionality in Renewable Polymer Composite Properties

Abdullah¹,

Rus²,

Abdullah³

2018

IJET

View full text Add to dashboard Cite

The preparation and characterization of composite thin films of renewable polymer graphite (PG) is disclosed. Thin films ~ 0.1 mm thick are prepared using a simple solution mixing with mass proportion of 2/1 (renewable monomer/ Methylene Diphenyl Diisocyanate, MDI), upon differ graphite content (PG0, PG5, PG10, PG15, PG20, PG25 andPG30) and drop casting at room temperature. The morphology-structure relations of renewable PG composites with respect to electrical conductivity were diagnosed using Optical microscope (OM), Fourier transform infra-red spectroscopy (FTIR) and Thermogravimetric analysis (TGA). The homogeneous random dispersion and strong interface between the graphite in the classical insulating renewable polymer matrix were observed. Thus resulting of enhancements in thermal stability with slight shift of decomposition temperature and better mechanical properties through the modulus and tensile strength increment up to ~440% and ~100% respectively. The result shows that it can simultaneously leads to renewable PG conductivity (σ) where the percolation threshold occurs at higher graphite content (PG20, PG25 andPG30) of 103 - 104 S/m. Thus, this non-petroleum based renewable polymer graphite composites have remarkably more to offer as conducting polymer composites material in multidisciplinary applications.

show abstract

“…Compared to polymers, SiC is chemically inert and hightemperature tolerant. 14,15,[21][22][23][24][25] In addition, SiC is much stiffer and stronger and can bond the CNTs tighter than polymers to bridge the CNTs and CNT bundles. 22,23,[26][27][28] Finally, due to semiconductive characteristics, SiC can reduce the contact resistance among CNTs to improve the electrical transportations.…”

Section: Introductionmentioning

confidence: 99%