Mechanical, Morphological and Thermal Characterization of Compatibilized  Poly(lactic acid)/Thermoplastic Starch Blends

Lendvai, László; Brenn, Dávid

doi:10.14513/actatechjaur.v13.n1.532

Cited by 24 publications

(17 citation statements)

References 17 publications

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“…Figure 5 shows the fractured surfaces of samples PLA, PLA_10MD and PLA_20MD, respectively. Figure 5a reveals a quite rigid fracture surface, which is typical for PLA [30,41]. The characteristics of the surface did not change, even when the MD was incorporated.…”

Section: Content [Wt%]mentioning

confidence: 96%

“…Also, its production costs are much higher than that of petrol-based plastics: while PP and PE currently sells for 0.4-0.6 €/kg, the price of PLA is roughly 6-8 times as much (3-4 €/kg). Hence, a large body of works has been devoted to the pairing of PLA with low-cost biopolymers, like starch [29,30] and natural/mineral filler particles [31][32][33] in order to overcome its inherent limitations, while maintaining the biodegradability and reducing the costs.…”

Section: Introductionmentioning

confidence: 99%

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Utilization of Waste Marble Dust in Poly(Lactic Acid)-Based Biocomposites: Mechanical, Thermal and Wear Properties

et al. 2021

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The aim of this present work was to study the applicability of waste marble dust (MD) in poly(lactic acid) (PLA)-based composites. Samples containing up to 20 wt% waste MD were prepared via melt blending. The attention was focused on the investigation of mechanical, morphological, thermal properties and the wear resistance of the PLA/MD composites. Regarding the mechanical properties, both the tensile and the flexural modulus improved remarkably, however, a slight loss was observed in strength and deformability. The impact toughness showed an increasing tendency up to 10 wt% MD loading, which was followed by a marginal decrease at higher concentration. With respect to the sliding wear rate, the composite with the highest MD content showed the best wear resistance. According to the DSC measurements, the MD hampered the chain mobility of PLA, thereby reducing the crystalline ratio. Overall, composites with improved properties were developed, while the reuse of waste MD is expected to reduce the production costs as well.

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Section: Content [Wt%]mentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Utilization of Waste Marble Dust in Poly(Lactic Acid)-Based Biocomposites: Mechanical, Thermal and Wear Properties

et al. 2021

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“…Bi-directional woven E-glass fiber (density 2.62 g/cm 3 ), epoxy resin (LY556 grade; density = 1.19 g/cm 3 ), and HY 951 polyamine hardener were procured from Yes composites India Ltd. New Delhi. Dolomite dust 80 mesh (density 2.8 g/cm 3 [35] ) was procured from Bharat Crashers, Mahoba; Uttar Pradesh India.…”

Section: Methodsmentioning

confidence: 99%

“…Continuous reduction of fossil fuel due to heavy consumption by industries has made it necessary to bring forward renewable sources as much as possible to meet the daily power demand. [1][2][3] Wind energy, a renewable energy source, produces nearly 2% of the total power generated by fossil fuels. [4] The worldwide power generation by wind energy was estimated at 591 GW, in which India stands at fourth position with the wind power generation of 35.1 MW.…”

Section: Introductionmentioning

confidence: 99%

Dolomite dust filled glass fiber reinforced epoxy composite: Influence of fabrication techniques on physicomechanical and erosion wear properties

Verma¹,

Gangil

Gupta

et al. 2021

Polymer Composites

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This article investigates the effect of fabrication techniques on the physical, mechanical, and erosion wear properties of glass fiber reinforced dolomite dust-filled epoxy composites. The composites were fabricated by hand layup and vacuum-assisted resin transfer molding (VRTM) techniques with fixed glass fiber (20 wt%) and varying dolomite dust (0 to 15 wt%) with epoxy resin.In physical properties, the experimental density consistently increased with the increase in the dolomite hand layup and the VRTM process; in opposite the voids content increased in the hand layup process and decreased in the VRTM process. In mechanical properties, the hardness, impact energy, and interlaminar shear strength increases while tensile and flexural strength consistently decreases with dolomite dust content. Using Taguchi's optimization technique, the erosion wear of the fabricated composites was also evaluated at different impingement angles, impact velocities, and erodent sizes. Erosion test results indicate that the VRTM process fabricated composite has minimum erosion wear compared to the hand layup process. The eroded surfaces were studied using a scanning electron microscope to understand the erosion behavior of particulate-filled fiber reinforced polymer composites.

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“…[18][19][20] These downsides can be generally overcome by different methods including copolymerization, mixing with different biopolymers and by introducing some filler/reinforcement. [21] Andrzejewski et al [22] studied the influence of corkwood waste hybrid filler on the structure and mechanical performance of PLA-based composites. They reported that the tensile strength and modulus increased significantly with the addition of wood waste with unfavorable behavior of increased water absorption as compared to cork-based composites.…”

Section: Introductionmentioning

confidence: 99%

Physical, mechanical, and thermal properties ofDalbergia sissoowood waste‐filled poly(lactic acid) composites

et al. 2021

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The present work intended to investigate the effect of Dalbergia sissoo wood waste on physical, mechanical, and thermal properties of poly(lactic acid) (PLA)-based composites. The composite specimens, containing wood waste (2.5%, 5%, 7.5%, and 10% by weight) mixed with PLA granules, were prepared by melt compounding. It was found that increased wood waste content resulted in higher modulus, porosity, and water absorption with decreased density, tensile strength, impact strength, and stress at break. Nevertheless, the flexural strength values of the composites were similar to unfilled PLA and they remained almost constant irrespective of the wood waste content. Differential scanning calorimetry analysis revealed that the presence of wood waste content increased the glass transition and cold crystallization temperature of the PLA composites. Moreover, the fractured surfaces of the composites were examined with a scanning electron microscope to study the possible failure mechanisms. The conducted investigations demonstrated that low-cost wood waste-based composites can be used as an environmentally and economically attractive substitute for lightweight applications.

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Mechanical, Morphological and Thermal Characterization of Compatibilized Poly(lactic acid)/Thermoplastic Starch Blends

Cited by 24 publications

References 17 publications

Utilization of Waste Marble Dust in Poly(Lactic Acid)-Based Biocomposites: Mechanical, Thermal and Wear Properties

Utilization of Waste Marble Dust in Poly(Lactic Acid)-Based Biocomposites: Mechanical, Thermal and Wear Properties

Dolomite dust filled glass fiber reinforced epoxy composite: Influence of fabrication techniques on physicomechanical and erosion wear properties

Physical, mechanical, and thermal properties ofDalbergia sissoowood waste‐filled poly(lactic acid) composites

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