Thermally conductive polybutylene succinate composite filled with Si-O-N-C functionalized silicon carbide fabricated via low-speed melt extrusion

Thermally conductive silicon carbide (SiC) filled linear low density polyethylene (LLDPE) plastics were prepared by using powder-mix method. Effects of coupling agent treatment on the thermal conductivity, mechanical properties, morphology and electric properties were also investigated. The results indicate that the coupling agent treatment for SiC particles improves the thermal conductivity of the plastics when using 1 wt.% to 3 wt.% coupling agent. The coupling agent treatment for SiC particles enhances interfacial adhesion between filler and matrix, giving the material higher mechanical properties. The coupling agent treatment for SiC particles also lowers the dielectric constant and dielectric loss of the material, performing better dielectric properties.

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Boron Diffusion in Silicon Carbide

Materials Science Forum ◽

10.4028/www.scientific.net/msf.740-742.561 ◽

2013 ◽

Vol 740-742 ◽

pp. 561-564

Author(s):

O.V. Aleksandrov ◽

E.N. Mokhov

Keyword(s):

Silicon Carbide ◽

High Speed ◽

Surface Region ◽

Component Model ◽

Boron Diffusion ◽

Low Speed ◽

Diffusion Layers ◽

Impurity Defect ◽

Nitrogen Impurity ◽

Two Component

For the description of features of boron diffusion of in silicon carbide the new two-component model is offer. The first component is the “shallow” boron - boron atoms in silicon sites (BSi). This component is prevailed in the surface region of diffusion layers and has rather low speed of diffusion. The second component is the “deep” boron – impurity-defect pairs of boron with carbon vacancy (BSi-VC). This component is prevailed in the volume region of diffusion layers and has rather high speed of diffusion. By means of model the influence of nitrogen impurity and isoconcentration diffusion of an isotope 10B are described.

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Simple and Consecutive Melt Extrusion Method to Fabricate Thermally Conductive Composites with Highly Oriented Boron Nitrides

ACS Applied Materials & Interfaces ◽

10.1021/acsami.7b05866 ◽

2017 ◽

Vol 9 (27) ◽

pp. 22977-22984 ◽

Cited By ~ 47

Author(s):

Xiaomeng Zhang ◽

Jiajia Zhang ◽

Lichao Xia ◽

Chunhai Li ◽

Jianfeng Wang ◽

...

Keyword(s):

Melt Extrusion ◽

Conductive Composites ◽

Boron Nitrides ◽

Thermally Conductive ◽

Extrusion Method

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Ultralight covalently interconnected silicon carbide aerofoam for high performance thermally conductive epoxy composites

Composites Part A Applied Science and Manufacturing ◽

10.1016/j.compositesa.2020.106028 ◽

2020 ◽

Vol 138 ◽

pp. 106028 ◽

Cited By ~ 1

Author(s):

Minh Canh Vu ◽

Nhat Anh Thi Thieu ◽

Won Kook Choi ◽

Md Akhtarul Islam ◽

Sung-Ryong Kim

Keyword(s):

Silicon Carbide ◽

High Performance ◽

Epoxy Composites ◽

Thermally Conductive

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Fischer-Tropsch Reaction on a Thermally Conductive and Reusable Silicon Carbide Support

ChemSusChem ◽

10.1002/cssc.201300921 ◽

2014 ◽

Vol 7 (5) ◽

pp. 1218-1239 ◽

Cited By ~ 66

Author(s):

Yuefeng Liu ◽

Ovidiu Ersen ◽

Christian Meny ◽

Francis Luck ◽

Cuong Pham-Huu

Keyword(s):

Silicon Carbide ◽

Fischer Tropsch ◽

Thermally Conductive

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Thermomechanical Properties of SiC-Filled Polybutylene Succinate Composite Fabricated via Melt Extrusion

Polymers ◽

10.3390/polym12020418 ◽

2020 ◽

Vol 12 (2) ◽

pp. 418 ◽

Cited By ~ 2

Author(s):

Zelalem Chernet Lule ◽

Eyob Wondu Shiferaw ◽

Jooheon Kim

Keyword(s):

Morphological Analysis ◽

Thermomechanical Properties ◽

Melt Extrusion ◽

Good Adhesion ◽

Degradation Temperature ◽

Sic Particles ◽

Mass Fractions ◽

Polybutylene Succinate ◽

Filler Dispersion ◽

Thermal Degradation Temperature

Polybutylene succinate (PBS) composites filled with various mass fractions of silicon carbide (SiC) particles were fabricated via slow melt extrusion. The morphological analysis revealed that the fabrication technique assisted in achieving a good adhesion between the PBS and SiC, along with excellent filler dispersion throughout the PBS matrix. The inclusion of 40 wt.% SiC in the PBS composite afforded a 10 °C increase in the thermal degradation temperature and a 160% enhancement in the thermal conductivity relative to the neat PBS. The crystallization temperature also increased with the inclusion of SiC particles, thus making the composites easier to process. Furthermore, the improvement in the Young’s modulus of the PBS composites increased their rigidity and stiffness relative to the neat PBS.

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