Mohd Nazry Salleh
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Preferred name
Mohd Nazry Salleh
Official Name
Mohd Nazry , Salleh
Alternative Name
Salleh, M.
Salleh, M. N.
Main Affiliation
Scopus Author ID
56104356800
Researcher ID
DWB-0139-2022

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Mechanical properties and water absorption behaviour of hybrid fibre with recycle high density polyethylene bio-composite

2024-04-01 , Juhardi N.N.B. , Mohd Nazry Salleh , Luqman Musa , Roslaili Abdul Aziz

Hybrid fibre which is rice husk (RH) and softwood were used as organic fibre with different compositions which are 10%, 20% and 30%. Whereas polymer matrix that used in this project is recycled high density polyethylene (r-HDPE) and ethylene glycidyl methacrylate (EGMA) used as compatibilizer in the composite. These materials were pre-mixed using a twin screw extruder and then shaped using hot compression in order to obtain a dumbbell and rectangular shape for Izod impact test, tensile and flexural test using Instron machine. Another test was carried out with a focus to observe the behaviour of water absorption in the composite. Testing resulted in decreasing tensile strength, elongation at break and impact stress upon an increase of fibre content. However, there are slight increases in the result of Young's modulus, water absorption, flexural strength and modulus.

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Effect of thermally treated rice husk on the rice husk/LDPE composites with and without MAPE

2022-05-18 , Nurliyana Nasrin Juhardi , Mohd Nazry Salleh , Roslaili Abdul Aziz , Luqman Musa , Mohd Fairul Sharin Abdul Razak , Hanafi I.

In this project, extruded rice husk (RH) / low density polyethylene (LDPE) with and without maleic anhydride (MAPE) were thermally treated at temperatures of 105C and 125C. The duration of annealing was carried out to one and three hours before going through to the injection moulding to get the dumbbell shape for tensile testing. From the testing, the trend of results obtained where tensile and modulus of elasticity of RH/LDPE increase with temperature of 125 C which are 5 MPa and 261 MPa respectively. However, the elongation at break shows a reduction value where 105 C temperature is 12% while 125C is 8%. Results obtained for RH/LDPE with and without MAPE show the composites with added MAPE have better tensile strength and modulus of elasticity. Meanwhile, the elongation at break of composites with MAPE is lower than composites without MAPE.

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Determination of degree of acetylation (DA) for chitin in deep eutectic solvents (DES)

2022-11-18 , Suhardy Daud , Luqman Musa , Farizul Hafiz Kasim , Ahmad Anas Nagoor Gunny , Mohd Nazry Salleh , Nazahah Mustafa , Mubarak N.M.

Degree of acetylation (DA) is an important parameter to determine the quality of chitin. Apart from the assessment on the bond structure in the chitin molecule, infrared spectroscopy is one of the methods that can be used to determine the value of DA. The DA value of chitin is an important parameter because the value indicates the purity of chitin quality. Chitin acetylation is the process of addition an acetyl substitution group (-COCH3) to a chitin chain. The addition of acetyl will improve its dispersing properties and subsequently will improve the chitin adhesion properties within hydrophobic matrix in composite materials as well. In this study, Deep Eutectic Solvent (DES) was used as a medium for chitin extraction and acetylation in one single process. DES has two components namely Hydrogen Bond Donor (HBD) and Hydrogen Bond Acceptor (HBA). Betaine and choline chloride were used as HBA whilst urea was selected to be utilized as HBD. The findings showed that the quantity of extracted chitins by the DESs were 5.4609 % and 2.0020 % respectively. The DA values for the extracted chitins are 103.1699 and 83.4821. For acetylated chitin in DES betaine - urea, the DA value was increased from 103.1699 to 118.4818. The findings showed that the high quality acetylated chitin can be produced in a single process involving extraction and acetylation process by using DES as a medium.

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Comparison between the Tensile, Water Absorption and Flammability Properties of Recycled High-Density Polyethylene/Rice Husk Composite from Twin-Screw Extruder and Heated Two-Roll Mill

2022-01-01 , Mohd Nazry Salleh , Roslaili Abdul Aziz , Shan C.R. , Luqman Musa , Mohd Fairul Sharin Abdul Razak , Nabialek M. , Jez B.

This study compares the mechanical properties of recycled high-density polyethylene (r-HDPE)/rice husk (RH) composites from a twin-screw extruder and a heated two-roll mill, and the effect of different filler loadings using different melt blending processes on the mechanical properties of r-HDPE/RH composites. Polyethylene-graft-maleic anhydride (MAPE) acts as the coupling agent to enhance interfacial bonding between the fibre and the polymer matrix. The filler loading used was in the range of 10-40 wt. %. In this work, r-HDPE/RH blends were prepared using a twin-screw extruder and a heated two-roll mill. The ratio of 70/30 twin-screw extruder compounded composites significantly showed higher tensile based on improved to about 45.5% at 11 MPa compared to those compounded in the heated two-roll mill. The same ratio showed an increment almost up to 9% of elongation at break. It has also been verified that the higher filler loading used reduced the tensile strength and elongation at break, while the Young's modulus increased. The result was evidenced by the increase in water absorption and longer burning time as the filler loading increased.

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Effect of surface treatment on water absorption of rice husk reinforced recycled high density polyethylene (RHDPE) composites.

2021-05-03 , Mohd Nazry Salleh , Roslaili Abdul Aziz , Luqman Musa , Mohamad Syahmie Mohamad Rasidi , Mohd Fairul Sharin Abdul Razak , Hong L.Y.

The goal of this study was to investigate the effect of surface treatment on rice husk reinforced recycled high density polyethylene (rHDPE) composites. Three types of surface treatments on rice husk were carried out which were maleated treatment, alkali treatment and acrylic acid treatment. Water absorption test was examined in distilled water. It showed that the lower the loading of rice husk, the lower the water absorption percentage. Maleated treatment on rice husk reinforced rHDPE has the highest resistance of water absorption tendency. Scanning electron microscope analysis of the composites showed that the lower the rice husk loading, the better the interfacial bonding of the composites. Maleated treatment of rice husk also showed that there is no gaps formed in the structure.

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Comparison between the Tensile, Water Absorption and Flammability Properties of Recycled High-Density Polyethylene/Rice Husk Composite from Twin-Screw Extruder and Heated Two-Roll Mill

2022-01-01 , Mohd Nazry Salleh , Roslaili Abdul Aziz , Shan C.R. , Luqman Musa , Mohd Fairul Sharin Abdul Razak , Nabialek M. , Jez B.

This study compares the mechanical properties of recycled high-density polyethylene (r-HDPE)/rice husk (RH) composites from a twin-screw extruder and a heated two-roll mill, and the effect of different filler loadings using different melt blending processes on the mechanical properties of r-HDPE/RH composites. Polyethylene-graft-maleic anhydride (MAPE) acts as the coupling agent to enhance interfacial bonding between the fibre and the polymer matrix. The filler loading used was in the range of 10-40 wt. %. In this work, r-HDPE/RH blends were prepared using a twin-screw extruder and a heated two-roll mill. The ratio of 70/30 twin-screw extruder compounded composites significantly showed higher tensile based on improved to about 45.5% at 11 MPa compared to those compounded in the heated two-roll mill. The same ratio showed an increment almost up to 9% of elongation at break. It has also been verified that the higher filler loading used reduced the tensile strength and elongation at break, while the Young's modulus increased. The result was evidenced by the increase in water absorption and longer burning time as the filler loading increased.

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Isolation and characterization of microcrystalline cellulose extracted from banana fiber in poly(lactic acid) biocomposite produced from solvent casting technique

2020-11-24 , Luqman Musa , Vesuanathan, Tamil Arasi , Mohd Nazry Salleh

The purpose of this project is to extract Microcrystalline Cellulose (MCC) from Banana fiber to produce Poly(Lactic Acid)/Microcrystalline Cellulose, (PLA/MCC) biocomposite film using a solvent casting technique. The initial phase is the production of MCC from Banana fiber by involving three steps; alkaline treatment, bleaching and acid hydrolysis. MCC produced from the different concentration of Nitric acid in the acid hydrolysis process, were used to analyze the morphological and crystalline properties using SEM and XRD respectively. MCC produced from the higher concentration of Nitric acid shows good morphological properties and higher % crystallinity. Then, MCC compounded into PLA with different filler loading to produce PLA/MCC biocomposite film using a different solvent which is Chloroform and Dichloromethane. Results show that lower MCC loading, induces good filler matrix interaction and this evidences by the improvement of the Tensile strength and Young's Modulus, as well as shows improvement in loss factor and storage modulus which studied from DMA. Moreover, the addition of MCC slightly improved the thermal stability of PLA. From using a different solvent to produce PLA/MCC biocomposite film, Dichloromethane solvent improves the tensile strength and Young's modulus of biocomposite film, while Chloroform reduces the tensile properties of biocomposite film.

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Effect of Surface Treatment on Mechanical Properties of Rice Husk Reinforced Recycled High Density Polyethylene (rHDPE) Composites

2020-11-24 , Mohd Nazry Salleh , Roslaili Abdul Aziz , Luqman Musa , Ying H.L. , Mohd Fairul Sharin Abdul Razak

The aim of this work was to investigate the effect of surface treatment on rice husk reinforced recycled high density polyethylene (rHDPE) composites. Three types of surface treatment on rice husk were carried out which were maleated treatment, alkaline treatment and acrylic acid treatment. The characteristics and mechanical properties of the composites were analysed. The results for all treatments showed that tensile strength and break elongation of composites decreased significantly when the rice husk filler loading increased. Further findings showed that maleated treatment on rice husk can further enhance the mechanical properties due to the present of ester bond formed in FTIR analysis.

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Infrared spectroscopy of extracted and acetylated chitin in versatile deep eutectic solvents (DES)

2022-05-18 , Suhardy Daud , Luqman Musa , Farizul Hafiz Kasim , Mohd Nazry Salleh , Nazahah Mustafa , Ahmad Z.

The conventional method to extract the chitin content from the crustacean shells usually uses concentrated acids and alkalis to remove impurities such as calcium carbonate and protein. However, the uses of concentrated acids and alkalis have caused many environmental issues. Deep Eutectic Solvent (DES) is one of the solvents that can be used to extract the chitin content from the crustacean shells. DES has two components namely Hydrogen Bond Donor (HBD) and Hydrogen Bond Acceptor (HBA). In this study, two types of DES have been used are betaine (HBA) - urea (HBD) and choline chloride (HBA) - urea (HBD). The results showed that DES betaine - urea and choline chloride - urea have extracted chitin content of 5.4609 % and 2.0020 % w/w respectively. The extracted chitins were analyzed using infrared spectroscopy method. The values of the degree of acetylation (DA) for the chitins were 103.1699 and 83.4821 respectively.

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