Fabrication and characterization of thermally conductive composites based on poly(butylene terephthalate)/glass fiber-silicon carbide
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Xia Cai
Abstract
A new method is reported for preparing poly(butylene terephthalate) (PBT)/glass fiber (GF)-silicon carbide (SiC) composites. GFs were coated with SiC particles firstly and then the treated GFs (GF-SiC) were mixed with PBT. Scanning electron microscopy (SEM) images showed that some SiC particles dispersed on the surfaces of GFs, and other particles fell off from surfaces of GFs and dispersed around GFs after processing. The thermal conductivities of composites are increased with increase of GF-SiC. At 30 wt% GF-SiC, the thermal conductivity of composites reached 0.6392 W/mK, which improved nearly 160% compared to that of neat polymer. Differential scanning calorimetry (DSC) results indicated that GF-SiC increased crystallinity of PBT compared with that of neat PBT and had no obvious influence on the melting temperature of PBT. The crystallization temperature (Tc) and glass transition temperature of all samples shifted to a higher temperature. The addition of GF-SiC can improve the thermal stability of PBT/GF-SiC composites obviously. Dynamic mechanical properties and dielectric properties were also discussed in this paper.
Acknowledgments
This work was supported by the Priority Academic Program Development of Higher Education Institutions.
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©2015 by De Gruyter
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Articles in the same Issue
- Frontmatter
- Original articles
- Visualization and simulation of filling process of simultaneous co-injection molding based on level set method
- Effect of compatibilizer on the properties of PBS/lignin composites prepared via a vane extruder
- Fabrication and characterization of thermally conductive composites based on poly(butylene terephthalate)/glass fiber-silicon carbide
- Preparation and characterization of poly(MMA-EGDMA-AMPS) microspheres by soap-free emulsion polymerization
- Modification of biaxially oriented polypropylene films using dicyclopentadiene based hydrogenated hydrocarbon resin
- Investigation of synthesis and processing of cellulose, cellulose acetate and poly(ethylene oxide) nanofibers incorporating anti-cancer/tumor drug cis-diammineplatinum (II) dichloride using electrospinning techniques
- Grafting poly(2-acryloyloxyethyl trimethyl ammonium chloride) branches onto the backbones of corn starch for toughening starch film
- Erosion characteristics of Teflon under different operating conditions
- Development of sustainable resource based poly(urethane-etheramide)/Fe2O3 nanocomposite as anticorrosive coating materials
