Preliminary Investigation to Determine the Suitable Mixture Composition for Corn Starch Matrix

Zakaria, Nazri Huzaimi; Ngali, Mohd Zamani; Selamat, Mohd Zulkefli

doi:10.1088/1757-899x/165/1/012013

Cited by 3 publications

(4 citation statements)

References 9 publications

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“…Thermoplastics corn starch was prepared from blended 70 wt.% of native corn starch powder and 30 wt.% of glycerol via hand-mixed and high speed mixer [24]. Five various fibre layer (laminated) was applied to prepare the laminates of the PALF/TPCS bio-composites as shown in Figure 1.…”

Section: Sample Preparation (Laminates)mentioning

confidence: 99%

Characteristic of thermoplastics corn starch composite reinforced short pineapple leaf fibre by using laminates method

Zakaria¹,

Ngali²,

Selamat³

et al. 2020

JMES

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In recent years, the increased demand of biodegradable polymers has sparked the research interest in the development of alternatives to conventional polymers. As such, starch considerably one of the best substitutes to the non-degradable polymers owing to its advantages. The main purpose of this study is to investigate the mechanical, physical and environmental characterization of bio-composites, which is in this case the thermoplastic corn starch (TPCS) reinforced with a 2 mm length of pineapple leaf fibre (PALF). The selection of different weight percentages in the range of 20 to 60 weight percentage (wt.%) of PALF contents were applied in this work. The mixtures of TPCS with different wt.% of PALF were made by using a hot compression moulding at 165 °C for 15 minutes. Several testing has been performed to determine the bio-composites characteristics. The results show that by incorporating 40 wt.% loading of PALF, the tensile and modulus strength has increased to the maximum. It is also seen that there is an inverse relationship between the moisture content and the wt.% loading of PALF. However, the water and moisture absorption show a direct relationship with wt.% loading of PALF. Meanwhile, the soil burial decreases when the wt.% loadings of PALF increase while the results for water solubility suggest vice versa. It is also found that the TPCS with 40 wt.% of PALF have a good miscibility between matrix/fibre in the bio-composites.

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Section: Sample Preparation (Laminates)mentioning

confidence: 99%

Characteristic of thermoplastics corn starch composite reinforced short pineapple leaf fibre by using laminates method

Zakaria¹,

Ngali²,

Selamat³

et al. 2020

JMES

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“…For this purpose, the mixtures were preheated for 15 minutes and pressed for 15 minutes at the temperature of 165°C under the load of 20 kg/cm 2 by using Go-tech (GT-7014-A30) hydraulic thermo-press. The same process had been utilized for the preparation of other types of CS mixtures [9]. In this study, five samples were prepared for each wt% loading of glycerol.…”

Section: Figure 2 Sample In Liquid Formmentioning

confidence: 99%

“…The disposal of these plastic products from petroleum-based polymer becomes a significant issue and contributes to environmental pollution [3], [7], [8]. In addition, global warming and oil depletion are the reasons that attracted attention from researchers in various fields to investigate the production of biopolymer materials [9]- [12]. There is increasing interest from researchers to utilize the available natural resources to develop a more environmentally friendly polymer to overcome the pollution of the environment, global warming, and oil depletion issues and replace conventional materials.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Physical Properties of Thermoplastic Corn Starch

et al. 2021

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The awareness to produce biodegradable composite has increased rapidly because of non-toxic and reachable. However, fully biodegradable composite production still low due to the matrix used in the composite is not biodegradable. Thus, this paper presents the study on mechanical and physical properties for the mixtures of corn starch (CS) with different weight percentages of glycerol as thermoplastics corn starch (TPCS) matrix. The selected glycerol contents were at 30, 35 and 40 wt%. The mixtures of CS and different weight percentages of glycerol were made using hot compression moulding at 165°C for 15 minutes to produce the TPCS samples. The mechanical and physical properties were done: the tensile test, hardness test, water absorption test, moisture content test and microstructure analysis under the Scanning Electron Microscopes (SEM). Incorporating 30 wt% loadings of glycerol has increased the tensile strength and hardness. The results show that the addition of higher than 30 wt% loadings of glycerol has decreased the tensile strength and hardness of the TPCS. The physical test results for 30 wt% loadings of glycerol for water absorption test and moisture content show the lowest value than other TPCS samples. However, the density value for all wt% loadings of glycerol does not offer much difference. It reveals that 30 wt% loadings of glycerol in the mixture of CS have shown a good interaction in the TPCS mechanical properties. Based on this finding, the TPCS has huge potential to be used as a matrix to develop a fully biodegradable composite.

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“…Thermoplastics corn starch was prepared from blended 70 wt.% of native corn starch powder and 30 wt.% of glycerol via hand-mixed and high speed mixer [20,21]. All PALF with 2 mm length were randomly orientated within the sample.…”

Section: B Sample Preparationmentioning

confidence: 99%

Mechanical Properties of Thermoplastics Corn Starch (TPCS) Reinforced Pineapple Leaf Fibre (PALF) Composite

Zakaria*,

Ngali,

Selamat

et al. 2019

IJRTE

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The aim of this study is to investigate the mechanical characterization of bio-composites on thermoplastic corn starch (TPCS) reinforced with 2 mm length of pineapple leaf fibre (PALF). The selection of different weight percentages of fibres (20, 30, 40, 50 and 60) weight percentage (wt.%) of PALF contents were applied in this study. The mixtures of TPCS with different wt.% of PALF were made by using a hot compression moulding at 165 °C for 15 minutes. The mechanical testing that has been performed are tensile, flexural and impact testing to determine the effect of fibre loading on bio-composites characteristics. The results show that by incorporating 40 wt.% loading of PALF, the tensile strength and tensile modulus has increased to the maximum. However, the flexural testing result shows that 50 wt.% loading of PALF show the highest strength and modulus. Meanwhile, the impact testing result shows decrement when the loadings of PALF increases. Scanning electron microscopy (SEM) show that the TPCS with 40 wt.% of PALF have a good miscibility between matrix/fibre in the bio-composites. Overall, the TPCS/PALF composites enhance the properties of the bio-composites for short-life application: that is, plate, container, disposable tray, packaging etc.

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Preliminary Investigation to Determine the Suitable Mixture Composition for Corn Starch Matrix

Cited by 3 publications

References 9 publications

Characteristic of thermoplastics corn starch composite reinforced short pineapple leaf fibre by using laminates method

Characteristic of thermoplastics corn starch composite reinforced short pineapple leaf fibre by using laminates method

Mechanical and Physical Properties of Thermoplastic Corn Starch

Mechanical Properties of Thermoplastics Corn Starch (TPCS) Reinforced Pineapple Leaf Fibre (PALF) Composite

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