Poly (lactic acid) foaming

Nofar, Mohammadreza; Park, Chul

doi:10.1016/j.progpolymsci.2014.04.001

Cited by 414 publications

(322 citation statements)

References 152 publications

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“…Currently PLA is considered as a promising replacement with polystyrene (PS) products [2]. Expanded PS (EPS) bead foams are of the PS products that are broadly being used in a wide range of applications such as packaging, cushioning, construction, and thermal and sound insulation and therefore, producing expanded PLA bead foams can be a suitable substitute for these products [3].…”

Section: Introductionmentioning

confidence: 99%

Expanded polylactide bead foaming - A new technology

Nofar¹,

Ameli²,

Park³

2015

AIP Conference Proceedings

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Section: Introductionmentioning

confidence: 99%

Expanded polylactide bead foaming - A new technology

Nofar¹,

Ameli²,

Park³

2015

AIP Conference Proceedings

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“…Low melt strength of PLA induces cell coalescence during cell growth. Addition of chain extenders to PLA increased the rheological properties of PLA, and depending on this, cell morphology is enhanced [43][44][45].…”

Section: Polylactic Acid-based Foamsmentioning

confidence: 97%

Thermoplastic Foams: Processing, Manufacturing, and Characterization

Altan¹

2018

Recent Research in Polymerization

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Polymer foams have wide application area due to their light weight, resistance to impact, high thermal insulation, and damping properties. Automotive, packing industry, electronic, aerospace, building construction, bedding, and medical applications are some of the ields that polymer foams have been used. However, depending on their cell structure-open or closed cell-polymer foams have diferent properties and diferent application areas. In this work, the most used thermoplastic foams with closed cells such as polypropylene, polyethylene, and polystyrene or polylactic acid have been focused. Their melt strength, degree of crystallinity for semi-crystalline ones, and viscosity have great importance on cell morphology. Cells in small diameter with high dense in polymer matrix are preferable. However, obtaining ine cells is not easy in each case, and it is still under investigation for some polymers. There are several ways to improve cell morphology, and one of them is addition of nanoparticle to the polymer. During foaming process, nanoparticles behave like nucleating agent that cells nucleate at the boundary between polymer and the nanoparticle. Besides, foaming agents contribute the homogenous dispersion of the nanoparticles in the polymer matrix, and this improves the properties of the polymer foams and generates multifunctional material as polymer nanocomposite foams.

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“…Recently, poly(lactic acid) (PLA) foams have been considered as the most promising bio-based and biodegradable substitutes for polystyrene (PS) and polyethylene (PE) foam products, which currently hold the majority ratio in the packaging industry. This is mainly due to the competitive material and processing costs of PLA accompanied with comparable barrier and mechanical properties and environmental friendly character [1]. Besides packaging industry, there is a wide range of potential application fields for PLA foams, such as construction and transportation, where these could effectively serve as lightweight heat and sound insulating elements, panels and sandwich composite cores.…”

Section: Introductionmentioning

confidence: 99%

“…Enhancing crystallization kinetics of PLA during foaming has been recognized as an effective way to overcome its weak viscoelastic properties and to improve its foaming behaviour (i.e. cell nucleation and expansion) [1,5,6]. In PLA, improved crystallinity has been achieved by using different nucleation agents, such as talc, that increase the heterogeneous nucleation density [7].…”

Section: Introductionmentioning

confidence: 99%

Characterisation of natural fibre reinforced PLA foams prepared by supercritical CO2 assisted extrusion

Bocz¹,

Tábi²,

Vadas³

et al. 2016

Express Polym. Lett.

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Abstract. Natural fibre reinforced polylactic acid (PLA) foams, as potential green replacements for petroleum-based polymer foams, were investigated. Highly porous (ε > 95%) microcellular PLA foams were manufactured by supercritical CO 2 assisted extrusion process. To overcome the inherently low melt strength of PLA, epoxy-functionalized chain extender was applied, while talc was added to improve its crystallization kinetics. The combined application of chain extender and talc effectively promoted the formation of uniform cell structures. The effect of cellulose and basalt fibre reinforcement on the foamability, morphology, structure and mechanical properties of the PLA foams were investigated as well. The addition of 5 wt% natural fibres promoted the cell nucleation, but caused non-uniform distribution of cell size due to the microholes induced by local fibre-matrix debonding. The compression strength of the manufactured basalt fibre reinforced PLA foams reached 40 kPa.

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Poly (lactic acid) foaming

Cited by 414 publications

References 152 publications

Expanded polylactide bead foaming - A new technology

Expanded polylactide bead foaming - A new technology

Thermoplastic Foams: Processing, Manufacturing, and Characterization

Characterisation of natural fibre reinforced PLA foams prepared by supercritical CO2 assisted extrusion

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