Improvement of Interfacial Adhesion and Thermomechanical Properties of PLA Based Composites with Wheat/Rice Bran

Gigante, Vito; Aliotta, Laura; Canesi, Ilaria; Sandroni, Marco; Lazzeri, Andrea; Coltelli, Maria Beatrice; Cinelli, Patrizia

doi:10.3390/polym14163389

Cited by 11 publications

(4 citation statements)

References 71 publications

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“…On top of that, the possible mechanisms of wax interaction with the filler and polymer were discussed, being found highly dependable on the surface treatment of the filler. The effects of wax additives on filler behaviour was studied by Gigante et al for PLA composites with wheat and rice bran 29 .…”

Section: Introductionmentioning

confidence: 99%

Beeswax as a natural alternative to synthetic waxes for fabrication of PLA/diatomaceous earth composites

Dobrosielska

Dobrucka

Kozera

et al. 2023

Sci Rep

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In this study, injection moulding was applied to produce biocomposites consisting of polylactide (PLA) and amorphous diatomaceous earth used as a filler at different concentrations. Natural wax and synthetic wax were added to improve processing properties, comparing the resulting biocomposites. The use of natural beeswax makes the composite environmentally friendly. The prepared composites contained 2.5, 5, 10 and 15% w/w filler. The test samples have been injection moulded. Rheological, mechanical, surface and other properties were assessed for the fabricated composites. The testing has shown that the use of wax additives has a significant influence on the mechanical properties (tensile strength, flexural strength, impact strength) and the hydrophilicity/hydrophobicity of composite surfaces. The addition of natural wax, especially at lower concentration, has a positive effect on the rheological properties of composites (melt flow rate, MFR), flexural modulus and impact strength. Different composite parameters are modified by different wax types so both natural and synthetic waxes, can be used interchangeably, depending on the required final material characteristics.

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Section: Introductionmentioning

confidence: 99%

Beeswax as a natural alternative to synthetic waxes for fabrication of PLA/diatomaceous earth composites

Dobrosielska

Dobrucka

Kozera

et al. 2023

Sci Rep

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“…Organoclay could also be used for compatibilizing and reinforcing different, incompatible biopolymers, such as chitosan, carboxy methyl cellulose, and PLA [389]. Rice and wheat bran platelets, treated with beeswax, along with talc and calcium carbonate, have been considered for a PLA/PBSA matrix [390]. Metals and metal oxide-based nanofillers are also used [391].…”

Section: Biocompositesmentioning

confidence: 99%

Towards Sustainable Color Cosmetics Packaging

Dube,

Dube

2023

Cosmetics

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In spite of the significant progress towards sustainable cosmetics, mass-produced sustainable packaging has proven to be a challenge. The complexity of environmental, economic, social, technological, and policy considerations in conjunction with varying consumer behaviors and corporate goals can make it difficult to select an optimal strategy across heterogeneous supply chain components spread over the globe, and the cost and effort of developing, testing, and validating alternative strategies discourages empirical exploration of potential alternatives. This review discusses the challenges that can be expected in the context of broader sustainability efforts, as well as the experience gained in related fields, such as sustainable cosmetics and sustainable packaging, to identify potential pitfalls as well as promising trends towards the development of sustainable color cosmetics packaging. The findings suggest there may be little to be gained from attempting to induce customers to change their behavior, waiting for a significant increase in global recycling infrastructure, or expecting regulatory constraints to substitute for the lack of technological and business solutions. A research strategy is delineated towards the development of sustainable packaging that, with appropriate policy support, could minimize externalities and provide mass-produced packaging that is acceptable to both consumers and producers.

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“…Hybridization is thought to be an approach that solves all problems related to the structure and properties of heterogeneous blends and composites. All kinds of hybrids are prepared from a very wide variety of materials, including the combination of three polymers [ 47 , 48 , 49 , 50 , 51 , 52 , 53 ], two polymers and a filler [ 54 , 55 , 56 , 57 ] or fiber [ 58 , 59 , 60 ], or a polymer matrix and two reinforcements [ 61 , 62 , 63 , 64 , 65 ], and significant improvement in properties as well as the synergistic effect of the components are claimed in the majority of cases [ 63 , 64 , 65 ]. However, hybridization raises many questions, and without addressing them, the claimed property improvement might not occur.…”

Section: Introductionmentioning

confidence: 99%

Interactions, Structure and Properties of PLA/lignin/PBAT Hybrid Blends

Pregi,

Romsics,

Várdai

et al. 2023

Polymers

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Poly(butylene adipate-co-terephthalate) (PBAT) was added to poly(lactic acid) (PLA)/lignin blends to decrease the considerable stiffness and brittleness of the blends. Two- and three-component blends were prepared in a wide composition range through homogenization in an internal mixer followed by compression molding. Interactions among the components were estimated by comparing the solubility parameters of the materials used and through thermal analysis. Mechanical properties were characterized by tensile testing. The structure of the blends was studied using scanning electron (SEM) and digital optical (DOM) microscopy. The results showed that the interactions between PBAT and lignin are somewhat stronger than those between PLA and the other two components. The maleic anhydride grafted PLA added as a coupling agent proved completely ineffective; it does not modify the interactions. The structural analysis confirmed the immiscibility of the components; the structure of the blends was heterogeneous at each composition. A dispersed structure formed when the concentration of one of the components was small, while, depending on lignin content, an interpenetrating network-like structure developed and phase inversion took place in the range of 30–60 vol% PBAT content. Lignin was located mainly in the PBAT phase. Properties were determined by the relative amount of PBAT and PLA; the addition of lignin deteriorated properties, mainly the deformability of the blends. Other means, such as reactive processing, must be used to improve compatibility and blend properties. The results contribute considerably to a better understanding of structure–property correlations in lignin-based hybrid blends.

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Improvement of Interfacial Adhesion and Thermomechanical Properties of PLA Based Composites with Wheat/Rice Bran

Cited by 11 publications

References 71 publications

Beeswax as a natural alternative to synthetic waxes for fabrication of PLA/diatomaceous earth composites

Beeswax as a natural alternative to synthetic waxes for fabrication of PLA/diatomaceous earth composites

Towards Sustainable Color Cosmetics Packaging

Interactions, Structure and Properties of PLA/lignin/PBAT Hybrid Blends

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