Investigating the effects of processing parameters on poly(lactic acid) properties – a central composite design approach

Ketabchi, Mohammad Reza; Khalid, Mohammad; Ratnam, Chantara Thevy; Michael, Feven Mattews; Walvekar, Rashmi

doi:10.1080/14658011.2019.1570444

Cited by 4 publications

(2 citation statements)

References 28 publications

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“…Pure error shows the extent of accuracy of the predicted equation. Cor Total (corrected total) shows variability in the individual observations about the mean [25]. A model F-value of 43.52 with P-value of <0.0001 indicating significance at 95% confidence level was observed for the model.…”

Section: Tensile Strengthmentioning

confidence: 96%

Optimization of processing parameters and its effect on the mechanical properties of recycled low density polyethylene composite reinforced with Tetracarpidium conophorum shell particulates

Okeke

Atuanya

Umembamalu

2020

Mater. Res. Express

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This work explored the effect of African Walnut Shell Particle (AWSP) (Tetracarpidium conophorum) on the properties of recycled low density polyethylene (rLDPE) composite. rLDPE/ AWSP composite were prepared via compressive moulding techniques using AWSP of sizes 300 and 600μm respectively. Composite design of experiment and analysis of variant (ANOVA) were employed for optimization. Mechanical and morphological analysis of the composite were studied. rLDPE reinforced with AWSP of particle size 300 μm exhibited better tensile strength, modulus of rupture (MOR) and modulus of elasticity (MOE) than those of 600 μm. Morphological analysis showed that uniform distribution of the Walnut shell particulates in the microstructure of the composite is the major factor responsible for the improvement in the mechanical properties. Optimality occurred at a press temperature of 206.465°C, press time of 10 min, press pressure of 7 MPa yielding a tensile strength of 14.082 MPa, MOR of 17.019 MPa and MOE of 755.028 MPa for 300 μm particle sized composite whereas for 600 μm size, it was achieved at press temperature of 199.993°C, press time of 6 min, press pressure of 7 MPa giving a tensile strength of 11.252 MPa, MOR of 15.401 MPa and MOE of 459.531 MPa respectively. The result from the optimization met the standard for interior and exterior mirror casing of automobiles.

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Section: Tensile Strengthmentioning

confidence: 96%

Optimization of processing parameters and its effect on the mechanical properties of recycled low density polyethylene composite reinforced with Tetracarpidium conophorum shell particulates

Okeke

Atuanya

Umembamalu

2020

Mater. Res. Express

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“…Poor processability, brittleness or poor toughness, imperfect durability, low heat deflection temperature and low melt viscosity (due to high crystallinity with thick crystalline cells) are the main causes of essential limitations for PLA development in the lots of fields. To eliminate the mentioned disadvantages, the addition of some miscible plasticisers such as polyethylene glycol is a conventional method which has recently replaced with blending [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Preparation of an enhanced nanohybrid alloy based on polylactic acid/polycarbonate/nanosilica

Irani-Kolash

Moshiri-Gomchi

Talebi-Liasi

et al. 2020

Plastics, Rubber and Composites

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In order to enhance properties of polylactic acid (PLA), its blend with polycarbonate (PC) and silica nanofiller were prepared and their properties were compared with neat PLA and PLA/ PC alloy. To have a better exchange reaction between PLA and PC and also an enhanced dispersion of nanosilica throughout the organic polymeric matrix, tin(II) 2-ethylhexanoate (TEH) and poly(ethylene-co-glycidyl methacrylate) (PEGM) were used as two different compatibilisers for the transesterification reactions between PLA, PC and nanosilica and chemical grafting of PEGM to PLA, PC and nanosilica. Performed analyses including X-ray diffraction, transmission electron microscopy, differential scanning calorimetry, melt flow index, tensile and thermogravimetric analysis demonstrated that although PEGM, which contains reactive epoxide groups, has a positive effect to promote the properties of its related nanohybrid, the best results were obtained in the presence of TEH as an effective coordination catalyst. Results showed that an enhanced industrial nanocomposite alloy can be fabricated with this efficient catalyst.

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Laurdan as fluorescent probe to determinate the critical micelle temperature of polymers from Pluronic®-coated fluid phase liposomes

Calori

Pazin

Brunaldi

et al. 2019

Journal of Molecular Liquids

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Investigating the effects of processing parameters on poly(lactic acid) properties – a central composite design approach

Cited by 4 publications

References 28 publications

Optimization of processing parameters and its effect on the mechanical properties of recycled low density polyethylene composite reinforced with Tetracarpidium conophorum shell particulates

Optimization of processing parameters and its effect on the mechanical properties of recycled low density polyethylene composite reinforced with Tetracarpidium conophorum shell particulates

Preparation of an enhanced nanohybrid alloy based on polylactic acid/polycarbonate/nanosilica

Laurdan as fluorescent probe to determinate the critical micelle temperature of polymers from Pluronic®-coated fluid phase liposomes

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