Effects of Surface Modifications on the Mechanical Properties of Reinforced Pineapple Leaf Fibre Polypropylene Composites

Gadzama, Samuel Wadzani; Sunmonu, O. K.; Isiaku, Umaru Semo; Danladi, Abdullahi

doi:10.4236/aces.2020.101002

Cited by 7 publications

(4 citation statements)

References 16 publications

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“…Berzin et al [ 41 ] found increasing trend of tensile strength and tensile modulus with the PALF incorporation between 10, 20, 30 wt.% in the PP matrix when the composites were fabricated through the twin-screw extrusion method. Gadzama et al [ 36 ] found the pineapple leaf-PP composite tensile properties of PALF-PP composites increased until 30 wt.% after that they decreased. However, in this study, tensile properties were found higher in case of 40 wt.% pineapple leaf fiber-reinforced composites compared to the other composites.…”

Section: Resultsmentioning

confidence: 99%

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Assessing Mechanical Properties of Jute, Kenaf, and Pineapple Leaf Fiber-Reinforced Polypropylene Composites: Experiment and Modelling

et al. 2023

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The application of natural fibers is increasing rapidly in the polymer-based composites. This study investigates manufacturing and characterization of polypropylene (PP) based composites reinforced with three different natural fibers: jute, kenaf, and pineapple leaf fiber (PALF). In each case, the fiber weight percentages were varied by 30 wt.%, 35 wt.%, and 40 wt.%. Mechanical properties such as tensile, flexural, and impact strengths were determined by following the relevant standards. Fourier transform infrared (FTIR) spectroscopy was employed to identify the chemical interactions between the fiber and the PP matrix material. Tensile strength and Izod impact strength of the composites significantly increased for all the composites with different fiber contents when compared to the pure PP matrix. The tensile moduli of the composites were compared to the values obtained from two theoretical models based on the modified “rule of mixtures” method. Results from the modelling agreed well with the experimental results. Tensile strength (ranging from 43 to 58 MPa), flexural strength (ranging from 53 to 67 MPa), and impact strength (ranging from 25 to 46 kJ/m2) of the composites significantly increased for all the composites with different fiber contents when compared to the pure PP matrix having tensile strength of 36 MPa, flexural strength of 53 Mpa, and impact strength of 22 kJ/m2. Furthermore, an improvement in flexural strength but not highly significant was found for majority of the composites. Overall, PALF-PP displayed better mechanical properties among the composites due to the high tensile strength of PALF. In most of the cases, T98 (degradation temperature at 98% weight loss) of the composite samples was higher (532–544 °C) than that of 100% PP (500 °C) matrix. Fractured surfaces of the composites were observed in a scanning electron microscope (SEM) and analyses were made in terms of fiber matrix interaction. This comparison will help the researcher to select any of the natural fiber for fiber-based reinforced composites according to the requirement of the final product.

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Section: Resultsmentioning

confidence: 99%

“…The thermal stability performance of the composites can be ranked with the following ascending order jute-PP < kenaf-PP < PALF-PP. The difference in constituent (like cellulose and lignin) of the fibers may affect the thermal stability of the composites [ 36 ].…”

Section: Resultsmentioning

confidence: 99%

Assessing Mechanical Properties of Jute, Kenaf, and Pineapple Leaf Fiber-Reinforced Polypropylene Composites: Experiment and Modelling

et al. 2023

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“…Use ASTM D256-10 method, and use the Izod ASTM D790-17 method to conduct an impact test to determine the impact strength (IS) of the reinforced composite. From the results obtained, the surface-modified PALF material composite material showed enhanced mechanical properties than the untreated PALF filler in turn; for the TS untreated composite material C3H6O3 [5]. Li C prepared ultra-high molecular weight polyethylene (UHMWPE) fibers, and modified them with 20:25:2 ratios of acetic acid, sulfuric acid and water for different time periods to prepare modified UHMWPE/EP composite materials.…”

Section: Related Workmentioning

confidence: 99%

Fiber Surface Modified Composite Material with Dielectric Properties for Sports Equipment

2022

IJST

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Fiber surface modification refers to the process of performing special chemical or physical treatment on the fiber surface to make it have the required performance or function. Composite materials refer to new materials artificially combining materials with different properties. The combined materials must be two or more than two, and the new materials formed by the combination have obvious interfaces. With the continuous advancement of science and technology, the economic level of sports has also been greatly improved, and more and more people have realized the importance of sports equipment in sports. This article aims to study the relationship between sports equipment with dielectric properties and fiber surface modified composite materials. This paper proposes the use of alkali treatment and plasma treatment for surface modification of fibres, the fibres before and after treatment as reinforcement for the matrix, and the preparation of composites by vacuum infusion moulding process to analyse the surface changes of fibres. Through the analysis of fiber materials, it is found that it can be applied to the field of sports equipment including graphene rubber composite materials. The experimental results in this article show that when 50% rubber is added, the thermal decomposition temperature is 400℃, and the thermal decomposition temperature is increased by 35%. When 1.2g of material is added, the tear strength of the rubber composite is increased by 78%. , When 1.1g of material is added, the tensile strength of rubber composite is increased by 161%. When 1g of material is added, the tensile strength of rubber composite is increased by 73%. When 0.5g of material is added, rubber composite the tensile strength of the material has increased by 43%.

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“…At 10% PLF loading, the ultimate tensile and flexural strength were noticed as 34.4 and 50.9 MPa, respectively. Gadzama et al 22 modified the surface of PLF to study its effect on the properties of injection molded PLF/PP composite. The authors reported that surface modification of PLF enhanced both stiffness and strength.…”

Section: Introductionmentioning

confidence: 99%

Mechanical, thermal, and morphological behavior of pineapple leaf fibre and polylactic acid green composites fabricated by varying fiber loading, fiber length, and injection parameters

Gorrepotu

Debnath

Mahapatra

2023

Polymer Engineering & Sci

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In this article, gray relational analysis (GRA) was carried out to study the influence of fiber length, fiber loading, and injection parameters on the mechanical, thermal, and morphological properties of the developed green composites. The green composite was developed by chemically modifying the pineapple leaf fiber (PLF). PLF was chemically treated with 1% Na2CO3 for a period of 6 h. The chemically modified PLF was chopped at a fiber length (L) of 2, 3, 4, 5, and 6 mm. The fiber loading (D) was also varied to 10, 20, and 30 wt% to study the effect of both fiber length and loading on the tensile and flexural properties of the PLF/PLA green composite developed through injection molding. GRA was employed to determine the optimal fiber length and fiber loading for achieving better tensile and flexural properties of PLF/PLA green composite. The injection parameters considered for producing the PLF/PLA green composite were (a) injection pressure (70, 90, and 110 bars), (b) injection speed (40, 50, and 60 mm/s), and (c) melting temperature (165, 175, and 185°C). The mechanical (tensile, flexural, compression, and shear) and thermal (TGA: thermogravimetric analysis and DTG: derivative thermogravimetric analysis) behavior of the developed PLF/PLA green composite was studied and analyzed. The morphology of the fractured specimens was also inspected using field‐emission scanning electron microscope (FESEM).

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Effects of Surface Modifications on the Mechanical Properties of Reinforced Pineapple Leaf Fibre Polypropylene Composites

Cited by 7 publications

References 16 publications

Assessing Mechanical Properties of Jute, Kenaf, and Pineapple Leaf Fiber-Reinforced Polypropylene Composites: Experiment and Modelling

Assessing Mechanical Properties of Jute, Kenaf, and Pineapple Leaf Fiber-Reinforced Polypropylene Composites: Experiment and Modelling

Fiber Surface Modified Composite Material with Dielectric Properties for Sports Equipment

Mechanical, thermal, and morphological behavior of pineapple leaf fibre and polylactic acid green composites fabricated by varying fiber loading, fiber length, and injection parameters

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