Effect of Fiber Loading and Compatibilizer on Rheological, Mechanical and Morphological Behaviors

Noranizan, Inul Azianti; Ahmad, Ishak

doi:10.4236/ojpchem.2012.22005

Cited by 20 publications

(13 citation statements)

References 31 publications

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“…As the Figure 2 illustrated, compared with the curve of virgin OWF, the peak of OH significantly decreases after treatment with coupling agents, resulting from a reaction between the hydroxyl groups and the coupling agent. [27] The K3 shows two new peaks at 1,720 and 817 cm −1 , and the peak at 817 cm −1 also appeared on the curve of K1 and K2 even though these are weak, verifying the reaction between OWF and the coupling agents. In addition, the curve of K1 shows a weak absorption peak near 804 cm −1 , which is due to the presence of N H in KH550.…”

Section: Measurement Of Water Absorptionmentioning

confidence: 79%

Study on the mechanical and thermal properties of poly(lactic acid)/office waste paper fiber composites

Zhang

et al. 2020

J of Applied Polymer Sci

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Environment friendly composites with favorable mechanical properties and low water absorption performance were successfully produced from poly(lactic acid) (PLA), office waste paper fiber (OWF), and coupling agents. The perfect sample was easily manufactured by melting–blending and injection molding. The PLA/OWF composites were comparable with other PLA/plant fiber composites, and the results indicated that the PLA/OWF composites show better performance than PLA/wheat straw fiber composites and PLA/bamboo fiber composites. On this basis, influence of modification of OWF on the properties of composites was investigated. The infrared results show that the OWF modification by different coupling agents was successful, and the scanning electron microscopy indicates that prepared composites exhibit good interfacial compatibility due to preferable binding force between fiber and matrix. With addition of 2 wt% γ‐(2,3‐propylene oxides)propyl trimethylsilane, the composite exhibits high tensile strength of 58.96 MPa, reflecting increase of 14% than the pure PLA. According to the crystallization and melting performance table, OWF can act as nucleating agent to promote the crystallization properties on composites, while the coupling agents have little effect on thermal stability. This article confirmed that the OWF has appropriate properties and is suitable for preparing composite materials and this work provides a novel idea for the utilization of office waste paper.

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Section: Measurement Of Water Absorptionmentioning

confidence: 79%

Study on the mechanical and thermal properties of poly(lactic acid)/office waste paper fiber composites

Zhang

et al. 2020

J of Applied Polymer Sci

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“…This conformation retains even when the melt exit the die. This continuity facilitates elastic energy recovery and increases the melt elasticity [39]. The storage modulus was 650,000 GPa for WSF/HDPE, 280,000 GPa for CCF/HDPE, 25,000 GPa for RHF/HDPE and FSF/HDPE at 0.1 rad/s.…”

Section: Strain Sweep Testmentioning

confidence: 96%

Characterization and Comparison of Rheological Properties of Agro Fiber Filled High-Density Polyethylene Bio-Composites

Ogah¹,

Afiukwa²,

Nduji³

2014

OJPChem

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The rheological behavior of composites made with high-density polyethylene (HDPE) and different agro fiber by-products such as corncob (CCF), Rice hull (RHF), Flax shives (FSF) and Walnut shell (WSF) flour of 60 -100 mesh were studied. The experimental results were obtained from samples containing 65 vol.% agro fiber and 3 wt.% lubricant. Particle sizes distribution of the agro fibers was in the range of 0.295 mm to ˂0.125 mm. SEM showed evidence of complete matrix/fiber impregnation or wetting. The melt rheological data in terms of complex viscosity (η*), storage modulus (G'), loss modulus (G"), and loss tangent (tanδ) were evaluated and compared for different samples. Due to higher probability of agglomeration formation in the samples containing 65 vol.% of agro fillers, the storage modulus, loss modulus and complex viscosity of these samples were high. The unique change in all the samples is due to the particle size distribution of the agro fibers. The storage and loss modulus increased with increasing shear rates for all the composites, except for Walnut shell composite which exhibited unusual decrease in storage modulus with increasing shear rate. Damping factor (tanδ) decreased with increasing shear rate for all the composites at 65 vol.% filler load although there were differences among the composites. Maximum torque tended to increase at the 65 vol.% agro fiber load for all composites. Corncob and Walnut shell composites gave higher torque and steady state torque values in comparison with Flax shives and Rice hull composites due to differences in particle sizes distribution of the agro fibers.

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“…The peak in the range of 3400 to 3200 cm -1 was assigned to the O-H stretching vibration of cellulose. The peak at ~2900 cm -1 was assigned to C-H stretching vibrations (Brigida et al 2010;Noranizan and Ahmad 2012;Safinas et al 2013). The absorption at 1736 cm -1 was assigned to the carbonyl group (C=O) stretching of the acetyl group or the ester linkage of the carboxylic group in the ferulic and ρ-coumeric acid moieties of lignin and/or hemicelluloses.…”

Section: Ftir Characterizationmentioning

confidence: 99%

Biodegradable Composite Films based on κ-carrageenan Reinforced by Cellulose Nanocrystal from Kenaf Fibers

Zarina¹,

Ahmad²

2014

BioResources

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Through alkali treatment, bleaching, and sulfuric acid hydrolysis, cellulose nanocrystals (CNCs) were prepared from kenaf fibers and were used as reinforcement materials in biocomposites based on κ-carrageenan. Biocomposites in the form of films were prepared by solution casting of a mixture of κ-carrageenan, glycerol, and various amounts of CNCs (0 to 8 wt%). Fourier transform infrared spectroscopy (FTIR) revealed that alkali treatment followed by bleaching totally removed lignin and hemicellulose from the kenaf. Morphological analysis of the fibers, cellulose, and κ-carrageenan of biocomposite films were carried out using field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM). The effects of filler content on the mechanical and thermal stability of the k-carrageenan biocomposite films were analyzed through tensile strength measurements and thermogravimetric analysis (TGA). At an optimum CNC content of 4%, the κ-carrageenan biocomposite films showed good dispersion, superior mechanical properties, and improved thermal stability.

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Effect of Fiber Loading and Compatibilizer on Rheological, Mechanical and Morphological Behaviors

Cited by 20 publications

References 31 publications

Study on the mechanical and thermal properties of poly(lactic acid)/office waste paper fiber composites

Study on the mechanical and thermal properties of poly(lactic acid)/office waste paper fiber composites

Characterization and Comparison of Rheological Properties of Agro Fiber Filled High-Density Polyethylene Bio-Composites

Biodegradable Composite Films based on κ-carrageenan Reinforced by Cellulose Nanocrystal from Kenaf Fibers

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