PLA based biocomposites reinforced with Arundo donax fillers

Fiore, Vincenzo; Botta, Luigi; Scaffaro, R.; Valenza, A.; Pirrotta, Antonina

doi:10.1016/j.compscitech.2014.10.005

Cited by 106 publications

(61 citation statements)

References 33 publications

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“…PLA matrix shows two melting peaks with the dominant peak at the higher temperature. Other studies have observed similar melting behavior for PLA and its nanocomposites [4,43]. The double peak is explained in different ways [33]: (a) formation of a disordered alpha phase of PLA owing to the low crystallization temperature, (b) nucleation of more than one crystal structure and (c) different morphology of the lamellae formed prior to the heating process.…”

Section: Resultsmentioning

confidence: 96%

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Structure-properties relationships in melt reprocessed PLA/hydrotalcites nanocomposites

Scaffaro¹,

Sutera²,

Mistretta³

et al. 2017

Express Polym. Lett.

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Abstract. In this work the effect of multiple reprocessing was studied on molecular structure, morphology and properties of poly(lactic acid)/hydrotalcites (PLA/HT) nanocomposites compared to neat PLA. In addition, the influence of two different kinds of HT -organically modified (OM-HT) and unmodified (U-HT) -was evaluated. Thermo-mechanical degradation was induced by means of five subsequent extrusion cycles. The performance of the recycled materials was investigated by mechanical and rheological tests, differential scanning calorimetry (DSC), intrinsic viscosity measurements and SEM observation. The results indicated that the best morphology was achieved in the systems incorporating OM-HT. On increasing the extrusion reprocessing cycles, the properties showed behavior due to two opposite effects: i) chain scission due to thermo-mechanical degradation and ii) filler dispersion effect resulting from multiple processing. In particular, at low reprocessing cycles, both tensile and rheological properties seem to be mainly affected by HT dispersion, especially when OM-HT was added. After five reprocessing cycles, on the contrary, chain scission, i.e. thermo-mechanical degradation, dominated. As regards the effect of the presence of organic modifier in HT, the results indicated that this variable apparently did not affect the macroscopic performance of the nanocomposites, especially at high reprocessing cycles.

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Section: Resultsmentioning

confidence: 96%

“…Besides recycling, the use of biodegradable polymers is rising as an alternative solution [3,4]. However, the replacement of conventional polymers with biodegradable polymers cannot be the only way to reduce the accumulation of plastic materials in landfills.…”

Section: Introductionmentioning

confidence: 99%

Structure-properties relationships in melt reprocessed PLA/hydrotalcites nanocomposites

Scaffaro¹,

Sutera²,

Mistretta³

et al. 2017

Express Polym. Lett.

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“…As a consequence, the development of a PBAT market will only be possible when production costs decrease and when their properties are improved [19]. The addition of low-cost materials (natural fibers and cellulose derivatives) as natural reinforcing agents is an effective way to improve the polymer properties and decrease their final price, while maintaining the biodegradability of the matrix [33][34][35][36][37][38]. However, many challenges remain in this field as well as opportunities waiting to be overcome and incorporated in order to improve the composite performance and allow its industrial-scale preparation [39].…”

Section: Introductionmentioning

confidence: 99%

An overview on properties and applications of poly(butylene adipate‐co‐terephthalate)–PBAT based composites

Ferreira

Cividanes

Gouveia

et al. 2017

Polymer Engineering & Sci

314

149

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There is growing interest in biodegradable polymers (BP), in particular poly(butylene adipate‐co‐terephthalate) (PBAT), due to environmental problems associated with the disposal of non‐biodegradable polymers into the environment. However, high production cost and low thermo‐mechanical properties restrict the use of this sustainable material, making its biodegradability advantageous only when it is decisively required. The addition of different compositions of monomers and selective addition of natural fillers have been reported as alternatives to develop more accessible PBAT‐based bioplastics with performance that could match or even exceed that of the most widely used commodity plastics. This review explores the recent progress of the applications and biodegradation of PBAT. The addition of natural fillers and its effect on the final performance of the PBAT‐based composites is also reported with respect to improving the properties of composites. The advance of polymerization reaction engineering combined with sustainable trend offers great opportunities for innovative green chemical manufacturing. POLYM. ENG. SCI., 59:E7–E15, 2019. © 2017 Society of Plastics Engineers

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“…5088 Improvements in the mechanical and thermal properties of the biocomposites have been reported using different types of filler. A study of PLA-based composites reinforced with Arundo donax (AD) material showed that the tensile and flexural moduli greatly increased with increasing the AD content (Fiore et al 2014). However, the glass transition temperature (Tg) and crystallization temperature (Tc) was decreased with increasing AD content.…”

Section: Introductionmentioning

confidence: 99%

Peroxide/Silane Crosslinked Poly(lactic acid) Hybrid Biocomposite Reinforced with Empty Fruit Bunch and Cotton Fibers for Hot-Fill Food Packaging

Meekum¹,

Kingchang²

2017

BioResources

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A biocomposite manufactured from peroxide/silane crosslinked poly(lactic acid) reinforced with hybridized empty fruit bunch (EFB) oil palm and cotton fibers was investigated. Optimization of dicumyl peroxide (DCP) and the vinyltrimethoxysilane (VTMS) crosslink system by using the 2 k factorial design of experiment (DOE), with k = 2 was preliminary employed. There was no significant effect of the designed parameters, DCP(A) and VTMS(B), on the properties of the biocomposite. Concerning the environmental and economical aspects, the DPC and VTMS ratio was important. A crosslink agent content from 0.5 phr of DCP with 1 phr to 2 phr VTMS was recommended to manufacture a biocomposite with high heat distortion temperature (HDT) at above 100 °C and reasonable flow and mechanical properties. Also, the direct addition of the DCP/VTMS crosslink agent onto the PLA/rubber compound mixture and fed into a twin screw extruder for producing crosslinked PLA/EFB/cotton hybrid biocomposites were the optimized mixing methods. Shorter process line/time, ease of process steps, and reasonable engineering properties were justified. A HDT above 100 °C with a better toughness property of the biocomposite material was obtained. The PLA/PLA and PLA/ENR crosslinks via silane/moisture condensation during the sauna incubation was the prime explanation.

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PLA based biocomposites reinforced with Arundo donax fillers

Cited by 106 publications

References 33 publications

Structure-properties relationships in melt reprocessed PLA/hydrotalcites nanocomposites

Structure-properties relationships in melt reprocessed PLA/hydrotalcites nanocomposites

An overview on properties and applications of poly(butylene adipate‐co‐terephthalate)–PBAT based composites

Peroxide/Silane Crosslinked Poly(lactic acid) Hybrid Biocomposite Reinforced with Empty Fruit Bunch and Cotton Fibers for Hot-Fill Food Packaging

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