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Publications
Publications (26)
This work aims to enhance the mechanical properties and water resistance of wheat gluten (WG)‐based bioplastic with the addition of oil palm fiber (OPF) and surface treatments. Due to the porous surface of OPF, alkali treatment enhanced its surface area and roughness. Alkali pretreatment effect on silane efficiency was investigated using different...
How nanoparticle type and content affect polybutylene succinate (PBS) properties were investigated by varying nanoclay and calcium carbonate nanoparticles (nanoCaCO 3 ) from 0 to 15 wt%. PBS/nanoparticle composites were prepared by compounding with a co-rotating twin-screw extruder and forming them with a compression molding machine. Their mechanic...
This work aimed to study the mechanism of toughness improvement of polylactic acid (PLA) by using a biobased plasticizer. Ozonized soybean oil (OSBO), acting as a biobased plasticizer, was prepared by the ozonolysis reaction. The functional groups and chemical structure of OSBO were characterized by FTIR and NMR techniques, respectively. Plasticize...
The aim of this work is the improvement of mechanical properties of oil palm fiber (OPF) reinforced polylactic acid (PLA) composites by using sodium hydroxide (NaOH) treatment. NaOH concentrations (0 to 15 %wt.) and treatment times (0 to 30 min) were varied to determine the suitable condition for surface treatment of OPF. Aspect ratio (L/D) and the...
TThe aims of this research work were to improve touhgness and water resistance of wheat gluten (WG) by epoxidized natural rubber (ENR) compared to glycerol. WG specimens were mixed and prepared by internal mixer and compression molding machine, respectively. ENR and glycerol were varied from 10 to 40 wt%. Effects of modifier types and contents on W...
The reactive process in the presence of a multifunctional monomer was performed to recover the molecular weight and improve the properties of gamma irradiated PLA. The effects of two multifunctional monomers, crosslinking agent (CA) and chain extender (CE), were comparatively evaluated. The effects of multifunctional monomers concentration and the...
The aim of this work was to improve the mechanical properties of polylactic acid (PLA) by natural oil polyol. Castor oil is natural oil polyol used for this work. It was directly extracted from castor seed and without chemical modification. The contents of castor oil were varied from 0 to 10 wt%. The effect of castor oil content on mechanical prope...
The aim of this work was to study the effects of natural fiber type and loading content on the sound absorption efficiency of natural rubber (NR)/treated natural fiber composite foams. This was investigated by measuring the cell characteristics of composite foam, sound absorption coefficient (SAC), and viscoelastic behavior. Bagasse (BF) and Oil Pa...
The sound absorbing efficiency of natural rubber (NR) foam is affected by the cell morphology of foam. Potassium oleate (K-oleate) and sodium bicarbonate (NaHCO3) were used as blowing agents to create open-cell foam. Amounts of the blowing agent were varied from 0.5 to 8.0 part per hundred of rubber (phr) to evaluate cell size and number of foam ce...
The aim of this work was to compare and discuss the influence of multifunctional monomers as crosslinking agent (Triallyl Isocyanurate; TAIC) and chain extender (Joncryl ADR4368) on the gamma irradiated Polylactic acid (PLA). The modified PLA samples with varying amount of TAIC and Joncryl were characterized by observing the molecular characteristi...
This work aimed to study the effect of different ultraviolet (UV) weathering conditions (natural and accelerated) on the photodegradation of polyvinyl chloride (PVC) and wood/polyvinyl chloride (WPVC) composites by considering the structural and physical changes of PVC and WPVC samples as well as examining the photodegradation profiles at different...
The aim of this work was to examine the influence the lignin component of wood on the photodegradation of high-density polyethylene (HDPE) in wood/HDPE (WPE) composites. The neat HDPE and wood/HDPE composites were prepared using a twin screw extruder followed by an injection moulder. The lignin content was varied from 0 to 29 %wt. of wood by the ad...
Structural and thermal stabilizations of poly(vinyl chloride) (PVC) and wood/PVC (WPVC) composites were studied using lead stearate (PbSt2), calcium/zinc complex (Ca/Zn) stabilizers, and methyl tin mercaptide (MT). Thermal and structural stabilities of PVC and WPVC composites were assessed using FTIR spectrometer, thermogravimetric analysis (TGA) a...
Three different UV stabilizers, 2-(2H-benzotriazol-2-yl)-4,6-ditertpentylphenol (Tinuvin XT833), 2-(2H-benzotriazol-2-yl)-p-cresol (Tinuvin P), or rutile–titanium dioxide (TiO2) were incorporated into poly(vinyl chloride) (PVC) and wood/PVC (WPVC) composite, and mechanical and physical properties and photostabilities were monitored. The polyene and...
Composite samples (WPVCs) of poly(vinyl chloride) (PVC) and wood flour were prepared in the PVC:wood weight ratio of 1:1, and the mechanical and structural changes of the composites were assessed in terms of UV aging time and condensation temperature. Acrylic coating containing cerium dioxide as a UV absorber was used for moderation of the mechanic...
Highly filled wood/poly(vinyl chloride) (WPVC) composites were manufactured in five different cross sections by using an industrial-scale twin-screw extruder. The flexural properties of such composites were evaluated, with the effects of sample direction, span length, and rate of loading also being taken into account. The experimental results sugge...
The creep and fatigue properties of two wood/poly(vinyl chloride) (WPVC) composite beams were studied under flexural and cyclic deformations. The effects of cross-section design and load direction were the main interests. The weight ratio of the wood and PVC compound used was 1:1, and the composites were produced by using an industrial-scale twin-s...
The effects of blending methods on mechanical and morphological properties of CaCO3/LDPE and fly ash/LDPE composites were investigated as a function of filler loadings. The CaCO3/LDPE and fly ash/LDPE composites considered in this work were prepared by dry blending (high-speed mixer) and melt blending (using single- and twin-screw extruders). It wa...
Three different chemical stabilizers were introduced into neat PVC and a wood/PVC composite (containing 50 phr wood flour) to improve their thermal and structural stabilities. The changes in CIE yellowness index, polyene index, %wt loss, and decomposition temperature (Td) were monitored. The effects of type and content of thermal stabilizers, therm...
Adhesion mechanisms and interfacial strengths of acrylonitrile–butadiene–styrene (ABS) copolymer/wood sawdust composites containing two different silane coupling agents [3-Methacryloxypropyl trimethoxysilane (KBM503) and N-2(aminoethyl)3-aminopropyl trimethoxysilane (KBM603)] were studied using the Fourier Transform Infrared (FTIR) technique and me...
E-chopped strand glass fibers with different initial fiber lengths and contents are introduced into wood-polyvinyl chloride (PVC) composites having the wood content of 50 parts per hundred (phr). The initial fiber lengths and glass fiber contents varied from 3, 6, and 12 mm, and 10, 20, and 30 phr, respectively, and the mechanical and morphological...
The extrudate swell ratio of five different thermoplastic melts flowing in a constant shear rate rheometer having a capillary die with and without application of magnetic field was studied. The effects of the magnetic flux direction and density, die temperature, and wall shear rate on the extrudate swell and flow properties were investigated. The e...
This article aimed to investigate the mechanical, morphological and thermal properties of PVC/LDPE blend with and without the addition of compatibilizers. The effects of LDPE content, compatibilizer type and rubber-wood sawdust loading on the properties of the blend were evaluated. The experimental results suggested that as the LDPE content was inc...
Unique explanations are given to describe changes in the mixing torque and tensile and impact properties of poly(vinyl chloride) (PVC)/wood sawdust composites affected by various types and concentrations of silane coupling agents. Concentrations of 0.5–1.0 and 1.5 wt % coupling agent are recommended for the optimization of the tensile and impact pr...
Mechanical properties and thermal and structural changes of poly(vinyl chloride) (PVC)/wood sawdust composites were assessed with respect to the effect of moisture content, varying from 0.33 to 3.00 % by weight in the composite, for three different wood sawdust contents. The swell ratio and texture characteristics of the composite extrudates were a...
The use of untreated sawdust as a filler in poly(vinyl chloride) (PVC) was examined—the effects of sawdust content on structural and thermal changes, and rheological and mechanical properties being of main interest. The results revealed that the torque and die entrance pressure drop values during mixing were independent of sawdust particles up to 2...
