Improvement Thermomechanical Properties of Polylactic Acid via Titania Nanofillers Reinforcement

Zorah, Mohammed; Mustapa, I; Daud, Norlinda; Nahida, J H; Sudin, Nur Ain Syafiqah; Majhool, Alhussein Arkan; Mahmoudi, Ebrahim

doi:10.37934/arfmts.70.1.97111

Cited by 14 publications

(8 citation statements)

References 30 publications

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“…36 The rutile phase of TiO 2 was assigned the appearance of these prominent diffraction peaks centered at 2 θ values of 27.7°, 36.7°, 41.2°, 54.4°, and 69.3°, according to TiO 2 standard card JCPDS No:21-1276. 37 The degree of crystallinity of PC/WF increases as the TiO 2 nanoparticle loading increases. Heterogeneous crystallization is responsible for the increase in crystallinity.…”

Section: Resultsmentioning

confidence: 98%

Studying the influence of the addition of nano-titanium dioxide on the rheological, mechanical, thermal, and electrical properties of polycarbonate/wood flour

Jawad¹,

Ahmed²

2023

Journal of Thermoplastic Composite Materials

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In this work, the thermal stability of wood flour (WF) was modified using a boric acid treatment. To further understand the impacts of incorporating various proportions of titanium dioxide (TiO2) nanoparticles loaded on polycarbonate (PC)/wood flour. The rheological, mechanical, thermal, electrical, and interfacial properties were studied. Various properties of the resultant PC/WF/TiO2 nanocomposites were then characterized. The viscosity of the nanocomposite was shown to decrease with shear rate and temperature. XRD investigation indicated that, by introducing TiO2 nanoparticles into PC/WF, the amorphous phase decreased, and the degree of crystallinity increased, as compared to bare PC/WF, from 65.78 to 42.29. In addition, the TGA profile showed that the nanocomposites have a higher resistance to thermal degradation than PC/WF alone. It was observed that the char residue resulting from the TGA of PC/WF/10%wt TiO2 increased to 5.69% compared to pure PC/WF (1.32%). It was found that an appropriate amount of TiO2 in PC/WF caused a significant increase in tensile strength, elongation at break, and on impact strength. These were attributed to an increase in the interface of the dispersed phase. The incorporation of nanoparticles enhanced the thermal conductivity of the nanocomposites, which was found to be higher when a TiO2 content of ∼3 wt% was used. The electrical conductivity of the PC/WF/TiO2 nanocomposite (<3 wt%) hindered the movement of free-moving ions, therefore reducing the nanocomposite’s electrical conductivity. However, at > 3 wt% of TiO2, due to the aggregation of nanoparticles, TiO2 nanoclusters formed in the PC/WF composite. Therefore, the additional space so created for the movement of conduction ions at the interface may have resulted in increased ion mobility. This could be the one of explanations for the increased electrical conductivity associated with higher wt% of TiO2. Results showed that treating the PC/WF/TiO2 nanocomposites with boric acid decreased both the rate of heat release and the total heat release.

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Section: Resultsmentioning

confidence: 98%

Studying the influence of the addition of nano-titanium dioxide on the rheological, mechanical, thermal, and electrical properties of polycarbonate/wood flour

Jawad¹,

Ahmed²

2023

Journal of Thermoplastic Composite Materials

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“…Moreover, Figure 5 e shows the XRD patterns of PLA and Fe-impregnated surfaces. PLA showed the common broad spectra at 2θ = 16.5° for the semi-crystalline structure of it [ 22 ], while the crystalline components, due to Fe impregnation, are shown with the appearance of sharp peaks.…”

Section: Resultsmentioning

confidence: 99%

Simple Preparation of Metal-Impregnated FDM 3D-Printed Structures

et al. 2022

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Modifying the natural characteristics of PLA 3D-printed models is of interest in various research areas in which 3D-printing is applied. Thus, in this study, we describe the simple impregnation of FDM 3D-printed PLA samples with well-defined silver nanoparticles and an iron metal salt. Quasi-spherical and dodecahedra silver particles were strongly attached at the channels of 3D-printed milli-fluidic reactors to demonstrate their attachment and interaction with the flow, as an example. Furthermore, Fenton-like reactions were successfully developed by an iron catalyst impregnated in 3D-printed stirrer caps to induce the degradation of a dye and showed excellent reproducibility.

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“…Synthetic Biopolymers are produced under controlled conditions and, therefore, generally exhibit the behavior. They can be predicted; degradation speed, tension resistance, elastic module, and such physical and mechanical characteristics are replicated [49][50][51][52][53].…”

Section: Biopolymersmentioning

confidence: 99%

“…Chemical coupling agents or compatibilizers (malleated polyethylene [MAPE], carboxylate polyethylene [CAPE], titanium-derived mixture [TDM], maleic anhydride polypropylene [MAPP], corono discharge), calendaring, stretching, thermo treatment, reaction with methanol melamine, isocyanates, triazine, silane, and mercerization have improved the affinity and adhesion between fibers and thermoset matrices. Gaining a deeper comprehension of the molecular structure, the interfacial contact between the matrix and the fibers, and the relationship between structure and property would be a significant advancement in this area of study [174][175][176][177][178].…”

Section: Challengesmentioning

confidence: 99%

Review of the Green Composite: Importance of Biopolymers, Uses and Challenges

Mohammed Zorah,

Mustafa Mudhafar,

Alhussein Arkan Majhool

et al. 2023

ARFMTS

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Polymers can be utilized for a wide variety of applications since they are lightweight and inexpensive, and their mechanical qualities are usually more than enough. Polymers often undergo a petrochemical production process and have a relatively lengthy elimination time. Green chemistry and green production are crucial in today's technology, which relies increasingly on non-toxic polymers made from natural ingredients. Biopolymers are a type of organic polymer that can break down naturally and pose no threat to human health or the environment. Here, we will take a quick look at the polymer structures that go into making eco-friendly composites in the future. Important polymer types and engineering studies for material manufacturing have been uncovered as a means of avoiding green production's negative effects on the environment. Possible future use of biopolymers as binders in composite materials and their effects on the environment.

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Improvement Thermomechanical Properties of Polylactic Acid via Titania Nanofillers Reinforcement

Cited by 14 publications

References 30 publications

Studying the influence of the addition of nano-titanium dioxide on the rheological, mechanical, thermal, and electrical properties of polycarbonate/wood flour

Studying the influence of the addition of nano-titanium dioxide on the rheological, mechanical, thermal, and electrical properties of polycarbonate/wood flour

Simple Preparation of Metal-Impregnated FDM 3D-Printed Structures

Review of the Green Composite: Importance of Biopolymers, Uses and Challenges

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