Effect of compatibiliser on the properties of polypropylene/glass fibre/nanoclay composites

Rahman, Nor Mas Mira Abd; Hassan, Aziz; Heidarian, Javad

doi:10.1590/0104-1428.2357

Cited by 7 publications

(4 citation statements)

References 26 publications

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“…The larger spectral shift in the spectrum of WPC-9 indicates that more hydrogen bonds were formed with the increase in the number of recycles [ 32 ]. The bands at 1375 and 1452 cm −1 are the characteristics of polypropylene [ 35 ]. In the case of covalent bonds, the reaction between the maleic anhydride and hydroxyl groups leads to ester bond formation [ 33 , 34 ].…”

Section: Resultsmentioning

confidence: 99%

The Effect of Recycling on Wood-Fiber Thermoplastic Composites

et al. 2020

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The aim of this study was to investigate the effect of recycling on polypropylene (PP) and wood-fiber thermoplastic composites (WPCs) using a co-rotating twin-screw extruder. After nine extrusion passes microscopy studies confirmed that the fiber length decreased with the increased number of recycling passes but the increased processing time also resulted in excellent dispersion and interfacial adhesion of the wood fibers in the PP matrix. Thermal, rheological, and mechanical properties were studied. The repeated extrusion passes had minimal effect on thermal behavior and the viscosity decreased with an increased number of passes, indicating slight degradation. The recycling processes had an effect on the tensile strength of WPCs while the effect was minor on the PP. However, even after the nine recycling passes the strength of WPC was considerably better (37 MPa) compared to PP (28 MPa). The good degree of property retention after recycling makes this recycling strategy a viable alternative to discarding the materials. Thus, it has been demonstrated that, by following the most commonly used extrusion process, WPCs can be recycled several times and this methodology can be industrially adapted for the manufacturing of recycled products.

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Section: Resultsmentioning

confidence: 99%

The Effect of Recycling on Wood-Fiber Thermoplastic Composites

et al. 2020

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“…FRC exhibit enhanced thermal, 12,13 mechanical, 14,15 and damping properties [16][17][18][19][20] compared to the polymer matrix alone. These composites offer improved thermal conductivity, thermal expansion, and heat resistance, making them excellent thermal insulators.…”

Section: Introductionmentioning

confidence: 99%

“…11 Fiber reinforcement composites (FRC) materials consisting of a polymer matrix reinforced with fibers. The processing of the composites involves incorporating fibers into the polymer matrix, either through extruder, impregnation or by using techniques like injection molding or compression molding.FRC exhibit enhanced thermal, 12,13 mechanical, 14,15 and damping properties [16][17][18][19][20] compared to the polymer matrix alone. These composites offer improved thermal conductivity, thermal expansion, and heat resistance, making them excellent thermal insulators.…”

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confidence: 99%

A pre‐mold study of alkaline‐silane treated EFB‐PP composites based on thermal and rheological analysis

Abdullah

Rahman

Hassan

2023

J of Applied Polymer Sci

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Rheological and thermal properties are important parameters to understand the role of the numerous variables involved in manufacturing and to achieve a high‐quality final product. The composites were prepared by compounding polypropylene (PP) with treated (alkaline and silane) oil‐palm empty fruit bunch (EFB) fiber using a twin screw extruder. Generally, regardless of fiber loading, the thermal stability of EFBPP composites was increased after using alkaline and silane‐treated EFB fibers as reinforcement. DSC analysis shows that there is a change in the melting temperature (Tm) and the degree of crystallinity (Xc) values of the EFB composites. The melt flow rate (MFR) of the composites decreased while viscosity increased with an increase in fiber loading. Rheological analysis reveals the composites to have a viscoelastic solid behavior where storage modulus (G') is greater than loss modulus (G“). The composites exhibit predominantly viscous behaviour (G" > G') at lower frequencies, whereas at higher frequencies the composites exhibit elastic behavior (G' > G”). The decrement of complex viscosity (η*) with an increasing angular frequency (ω) shows the materials exhibit shear thinning behavior. The composites also show the ability for regeneration when analyzed using time‐dependent behavior.

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“…Matrix adhesion to fibre is critical to mechanical and thermal properties of the fibre. [27][28][29][30] PP is commonly modified with melic-anhydride; an organic acid with the formula [C 2 H 2 (CO) 2O] in an attempt to improve the adhesion to glass fibres. The addition of maleic anhydride (MH) to PP leads to a drop in the mechanical and physical properties of PP matrix.…”

Section: Introductionmentioning

confidence: 99%

The effect of fibre length and matrix modification on the fire performance of thermoplastic composites: The behaviour of PP as an example of non-charring matrix

Ghazzawi

Osorio

Martin

et al. 2020

Journal of Thermoplastic Composite Materials

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The fire performance of fibre-reinforced polypropylene (PP) was investigated with respect to fibre length and modification of the matrix. Fibre lengths of 3 mm, 12 mm, and continuous fibres were used as reinforcements. E-glass continuous fabrics were melt impregnated with PP and consolidated via compression moulding. E-glass fibre-reinforced PP pellets of 3 and 12 mm were compression moulded. Cone calorimetry tests with incident radiant fluxes of 20, 30 and 35 kW m−2 were used to investigate the fire properties of PP glass fibre composites. Results showed that continuous glass fibre reinforced PP exhibits the best fire performance at 20 kW m−2, while 3-mm fibre has the best performance at 35 kW m−2; 12-mm fibre-reinforced PP exhibitedthe lowest performance in comparison with 3-mm and continuous glass fibre reinforcement. Melic-anhydride (MA)-modified PP was found to increase the heat release rate (HRR) by up to 44% and time to ignition by up to 10% depending on the heat flux applied in comparison with unmodified PP. The glass fibre-reinforced composite made with MA-modified PP has 5–12% lower mean HRR and similar time to ignition in comparison with glass fibre composite made by unmodified PP. This suggests improved fibre adhesion plays a role of the fire performance of glass fibre-reinforced PP.

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Effect of compatibiliser on the properties of polypropylene/glass fibre/nanoclay composites

Cited by 7 publications

References 26 publications

The Effect of Recycling on Wood-Fiber Thermoplastic Composites

The Effect of Recycling on Wood-Fiber Thermoplastic Composites

A pre‐mold study of alkaline‐silane treated EFB‐PP composites based on thermal and rheological analysis

The effect of fibre length and matrix modification on the fire performance of thermoplastic composites: The behaviour of PP as an example of non-charring matrix

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