Effect of pressing temperature on the mechanical properties of waste styrofoam filled sawdust composite

Nasution, Harmein; Harahap, Hamidah; Riani, R; Pelawi, Awan

doi:10.1088/1757-899x/309/1/012034

Cited by 3 publications

(4 citation statements)

References 2 publications

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“…The increase of temperature during the hot press process vaporizes the moisture within the fillers at the surface, decreasing the voids of the composite. 36 But further increment of the temperature to 141°C results in the reduction of tensile strength from 5.32 MPa to 2.51 MPa. Due to high-temperature damage to the biomaterials, the bio-resin and fibers had the lowest tensile strength at 141°C.…”

Section: Resultsmentioning

confidence: 98%

“…As the composite is compressed, the gaps close and the permeability decreases, increasing the adhesion between the fiber and the matrix. 36 However, increasing the pressure from 4.33 MPa to 6 MPa resulted in a reduction of the tensile strength of the product. Because applying higher pressure above the optimum level causes reinforcement breakage and strength reduction.…”

Section: Process Parameter Optimization Of the Bio-composite Filmmentioning

confidence: 99%

“…The void decreases by pressing at higher pressure. 36 Interaction effect of pressure and fiber loading on TS. The interaction effect of pressure and fiber loading in tear strength shown in Table 5 has a significant effect on the TS of bio-composite film because the p-value is <0.0001 as shown in Figure 20.…”

Section: Effects Of Process Parameters On Tsmentioning

confidence: 99%

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Synthesis of starch-derived biopolymer reinforced Enset fiber green composite packaging films: Processes and properties optimization

Feyissa,

Gudayu

2023

Composites and Advanced Materials

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The use and disposal of traditional fiber-reinforced polymer composites is an important environmental challenge as one of the factors contributing to worsening climate change. The primary objective of this research is to synthesize thermoplastic starch (TPS) from edible banana skins which can potentially be used as a matrix to produce bio-composite films. For the synthesis of TPS, the preparation of banana peels was performed followed by plasticization to obtain the banana peels TPS. For bio-composite film fabrication, the TPS was mixed with short false banana fibers (FBF) (10–30% by weight of the film) with an electronic blender to form a uniform dispersion of the fibers in the TPS. The FBF/TPS blend was applied uniformly on the surface of the rectangular metal mold. The autoclave method has been adopted for curing and molding the bio-composite film. Then, it was hot pressed varying the temperature and pressure from 131–141 OC to 3–6 MPa, respectively, to obtain the final cured film. The specimen was then solidified or hardened at ambient temperature. Finally, optimization of process parameters, fiber content, and their interaction effects on the tear strength, tensile strength, and bending modulus of the bio composite films were conducted using response surface methodology. The results indicate that both the effects of one factor and the interaction of factors have a significant effect on the mechanical properties of composite films. The optimum processing parameters for TPS production are a temperature of 50 OC and a drying time of 24 h. The optimal result indicates that, at 30% fiber loading, the optimum processing temperature and pressure are 135.14°C and 4.33 MPa, respectively, resulting in a composite film with good mechanical properties.

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Section: Resultsmentioning

confidence: 98%

Section: Process Parameter Optimization Of the Bio-composite Filmmentioning

confidence: 99%

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Synthesis of starch-derived biopolymer reinforced Enset fiber green composite packaging films: Processes and properties optimization

Feyissa,

Gudayu

2023

Composites and Advanced Materials

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“…However, styrofoam is difficult to decompose naturally, so it is necessary to find ways to utilize styrofoam for other useful materials such as composites, membranes, and others [9]. Furthermore, using used styrofoam as a composite produces composites with low mechanical strength and requires the addition of reinforcement [10]. Today composite materials made of natural fibers are widely used for their advantages compared to synthetic fibers: low specific gravity, abrasion resistance, good electrical resistance, and excellent soundproofing [11].…”

Section: Introductionmentioning

confidence: 99%

Manufacture and Characterization of Polymer Concrete with Pumice Aggregates, Banana Stem Fibers, and Styrofoam Waste as Fillers

Nasution

Fauzi²

2022

J. Technomaterial Phys.

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This study aims to determine the effect of replacing some fractions of pumice stone with banana stem fiber in polymer concrete. The ratio of sand, pumice stone, and banana stem fiber were (25:35:0), (25:33:2), (25:31:4), (25:29:6), (25:27:8) in units of weight %. The matrix used was 10% of styrofoam with the addition of 40% epoxy resin. Parameters tested include physical tests (density, porosity, and water absorption), mechanical tests (hardness, flexural strength, and compressive strength), microstructure, and elemental content tests using SEM-EDX. The test results show that the optimum physical properties for density are 1.4 g/cm3, porosity 0.25 %, and water absorption 0.204 %. Meanwhile, the optimum value of mechanical properties in the hardness test is 56.0166 HVN, the flexural strength 26.830 MPa, and the compressive strength 34.082 MPa. Moreover, the morphological and elemental analysis results showed the formed pores, the distribution of the epoxy, and the elements loaded on the polymer concrete samples.

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Environmentally friendly plastic tiles for substituting wooden board, and its processing machine design

Sabarudin

Arendra

Mualim

2021

IOP Conf. Ser.: Mater. Sci. Eng.

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Plastic waste has become a global problem because it cannot be degraded in nature and in its manufacturing process requires non-renewable resources. For this reason, we need communal awareness to reduce, reuse and recycle plastic. Participating in this awareness, this paper intends to design plastic tiles made from plastic waste to replace natural wooden boards. Wooden boards are industrial forestry products that are becoming more and more expensive because of forestry wood materials are now increasingly scarce. Plastic used as raw material for the plastic tiles is recovered from the land fill. This study also worked on the design of equipment to process plastic waste into plastic tiles. This plastic hot press machine is made of a UNP steel frame. The top heating plate and bottom heating plate use CNC milled aluminum alloy equipped with 8×500 Watts cartridge heater. The heating plate temperature is set with the temperature controller. And the pneumatic piston of 80mm bore × 200mm stroke, 10 Bar, controlled by Outseal PLC. The plastic hot press machine produces two plastic tiles of 240mm×340mm×5mm size, weighing 387gr each, in 110 minutes. Tensile test according to ASTM D638 standard on product specimens shows tensile strength up to 18.0MPa.

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Effect of pressing temperature on the mechanical properties of waste styrofoam filled sawdust composite

Cited by 3 publications

References 2 publications

Synthesis of starch-derived biopolymer reinforced Enset fiber green composite packaging films: Processes and properties optimization

Synthesis of starch-derived biopolymer reinforced Enset fiber green composite packaging films: Processes and properties optimization

Manufacture and Characterization of Polymer Concrete with Pumice Aggregates, Banana Stem Fibers, and Styrofoam Waste as Fillers

Environmentally friendly plastic tiles for substituting wooden board, and its processing machine design

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