Effects of fiber-surface modification on the properties of bamboo flour/polypropylene composites and their interfacial compatibility
-
Jian Wang
,
Jie Dong
Abstract
This work aimed to study the effects of different surface treatments on the morphologies and thermo-mechanical properties of the bamboo flour/polypropylene (BF/PP) composites, which were prepared by melt blending with 15 wt% of filler load. The BF was first pretreated with 10 wt% sodium hydroxide (NaOH) solutions for 4 h, after which the pre-treated BF was modified by stearic acid and silane. The chemical structure of the treated BF fibers was characterized through Fourier transform infrared spectroscopy (FTIR), and the results showed that alkali treatment efficiently removed hemicellulose, lignin, and pectin. Moreover, stearic acid and silane were successfully introduced to the BF surface through chemical bonding. The changes in heat stability of BF investigated by thermogravimetric analysis (TGA) revealed that the presence of treatment contributes to a better thermal stability for BF fibers. In addition, the scanning electron microscopy (SEM) observation of BF/PP composites displayed not only better dispersion of treated-BF in the polypropylene (PP) matrix, but also improved fiber-matrix interfacial compatibility, especially when silane treatment was used. Accordingly, the mechanical properties improved significantly in the presence of treated-BF.
Acknowledgments
The research presented herein was supported by the Innovation Fund Designated for Graduate Students of Heilongjiang Province (Grant No. YJSCX201502NEPU).
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©2018 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Original articles
- Mechanical and rheological properties of polystyrene-block-polybutadiene-block-polystyrene copolymer reinforced with carbon nanotubes: effect of processing conditions
- Effects of surface modification of halloysite nanotubes on the morphology and the thermal and rheological properties of polypropylene/halloysite composites
- Influence of the polyacrylonitrile proportion on the fabricated UF blend membranes’ performance for humic acid removal
- Effects of partial replacement of carbon black with nanocrystalline cellulose on properties of natural rubber nanocomposites
- Conductive mechanism of carbon black/polyimide composite films
- Effects of fiber-surface modification on the properties of bamboo flour/polypropylene composites and their interfacial compatibility
- Highly electrically conducting poly(L-lactic acid)/graphite composites prepared via in situ expansion and subsequent reduction of graphite
- Preparation and performance optimization of PVDF anti-fouling membrane modified by chitin
- Fabrication of bilayer resin-bonded fixed abrasive wires using the pultrusion process
- Guidelines for balancing the flow in extrusion dies: the influence of the material rheology
Articles in the same Issue
- Frontmatter
- Original articles
- Mechanical and rheological properties of polystyrene-block-polybutadiene-block-polystyrene copolymer reinforced with carbon nanotubes: effect of processing conditions
- Effects of surface modification of halloysite nanotubes on the morphology and the thermal and rheological properties of polypropylene/halloysite composites
- Influence of the polyacrylonitrile proportion on the fabricated UF blend membranes’ performance for humic acid removal
- Effects of partial replacement of carbon black with nanocrystalline cellulose on properties of natural rubber nanocomposites
- Conductive mechanism of carbon black/polyimide composite films
- Effects of fiber-surface modification on the properties of bamboo flour/polypropylene composites and their interfacial compatibility
- Highly electrically conducting poly(L-lactic acid)/graphite composites prepared via in situ expansion and subsequent reduction of graphite
- Preparation and performance optimization of PVDF anti-fouling membrane modified by chitin
- Fabrication of bilayer resin-bonded fixed abrasive wires using the pultrusion process
- Guidelines for balancing the flow in extrusion dies: the influence of the material rheology
