Preparation, characterization and properties of binary and ternary blends with thermoplastic starch, poly(lactic acid) and poly(butylene adipate-co-terephthalate)

Ren, Jie; Fu, Hengzhi; Ren, Tianbin; Yuan, Weizhong

doi:10.1016/j.carbpol.2009.01.024

Cited by 238 publications

(145 citation statements)

References 29 publications

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“…This process happens by breaking hydrogen bonds between the starch macromolecules, coinciding with a partial depolymerization of starch backbone [3]. In food packaging application TPS films have drawbacks, that is, poor mechanical performance and high moisture absorption.…”

Section: Introductionmentioning

confidence: 99%

Thermoplastic Cassava Starch-PVA Composite Films with Cellulose Nanofibers from Oil Palm Empty Fruit Bunches as Reinforcement Agent

Fahma

Sugiarto

Sunarti

et al. 2017

International Journal of Polymer Science

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Thermoplastic starch-polyvinyl alcohol composite films were prepared by casting method with cellulose nanofibers as reinforcement agent and glycerol as plasticizer. The obtained cellulose nanofibers with a diameter of 27.23 ± 8.21 nm were isolated from oil palm empty fruit bunches (OPEFBs) by mechanical treatment. The addition of cellulose nanofibers until 3 wt% increased tensile strength and crystallinity of the composite films. In contrast, it decreased their elongation at break and water vapor transmission rate. Meanwhile, the addition of glycerol increased elongation at break and water vapor transmission rate of film matrix but lowers tensile strength of composite films.

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Section: Introductionmentioning

confidence: 99%

Thermoplastic Cassava Starch-PVA Composite Films with Cellulose Nanofibers from Oil Palm Empty Fruit Bunches as Reinforcement Agent

Fahma

Sugiarto

Sunarti

et al. 2017

International Journal of Polymer Science

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“…However, the majority of biodegradable polymers (polyhydroxyalkanoates (PHAs), polyhydroxybutyrate (PHB), polylactic acid (PLA), polycaprolactones (PCL)) are higher in cost and possess inferior mechanical properties compared with, for example, high-density polyethylene (HDPE) and low-density polyethylene (LDPE) [1,2] . Starch, a natural, low-cost polymer from renewable sources, also produces materials with diminished mechanical properties and high moisture sensitivity, even when used in blends with other biodegradable polymers [3][4][5][6][7] . In this context, natural fibers have been studied as a good alternative for reinforcement being mixed with pure biodegradable polymers or their blends to form composites with reduced environmental impact [8] .…”

Section: Introductionmentioning

confidence: 99%

Oat fibers modification by reactive extrusion with alkaline hydrogen peroxide

et al. 2016

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SbstractThe modification of lignocellulosic fibers can enhance their interaction with other materials and alkaline hydrogen peroxide (AHP) is a reagent widely used to promote such modification. This work aimed to modify oat hulls fibers by reactive extrusion using AHP (7 g 100 g -1 of hulls). The modified oat hulls displayed performances comparable to those observed by other researchers using conventional AHP method (without extrusion). The AHP treated oat hulls showed increased luminosity compared to the extruded ones. Fourier transform infrared spectroscopy showed differences between the modified and unmodified structures. The removal of surface compounds resulted in a more open morphology, with greater surface area and greater porosity. Reactive extrusion can be an alternative method for fiber modification with several advantages, such as short processing time and no wastewater generation.

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“…In this context, tartaric acid (TA) can be added. TA is an organic acid naturally present in fruits, mostly in grapes, that can act as plasticiser or acidifier or can be used to promote esterification/transesterification reactions between polymers [11][12][13] . Reactive extrusion is useful in the modification of the properties of starch and in the production of TPS blended with other materials.…”

Section: Introductionmentioning

confidence: 99%

Starch/polyester films: simultaneous optimisation of the properties for the production of biodegradable plastic bags

Olivato¹,

Grossmann²,

Bilck³

et al. 2013

Polímeros

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Blends of starch/polyester have been of great interest in the development of biodegradable packaging. A method based on multiple responses optimisation (Desirability) was used to evaluate the properties of tensile strength, perforation force, elongation and seal strength of cassava starch/poly(butylene adipate-co-terephthalate) (PBAT) blown films produced via a one-step reactive extrusion using tartaric acid (TA) as a compatibiliser. Maximum results for all the properties were set as more desirable, with an optimal formulation being obtained which contained (55:45) starch/PBAT (88.2 wt. (%)), glycerol (11.0 wt. (%)) and TA (0.8 wt. (%)). Biodegradable plastic bags were produced using the film with this formulation, and analysed according to the standard method of the Associação Brasileira de Normas Técnicas (ABNT). The bags exhibited a 45% failure rate in free-falling dart impact tests, a 10% of failure rate in dynamic load tests and no failure in static load tests. These results meet the specifications set by the standard. Thus, the biodegradable plastic bags fabricated with an optimised formulation could be useful as an alternative to those made from non-biodegradable materials if the nominal capacity declared for this material is considered.

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Preparation, characterization and properties of binary and ternary blends with thermoplastic starch, poly(lactic acid) and poly(butylene adipate-co-terephthalate)

Cited by 238 publications

References 29 publications

Thermoplastic Cassava Starch-PVA Composite Films with Cellulose Nanofibers from Oil Palm Empty Fruit Bunches as Reinforcement Agent

Thermoplastic Cassava Starch-PVA Composite Films with Cellulose Nanofibers from Oil Palm Empty Fruit Bunches as Reinforcement Agent

Oat fibers modification by reactive extrusion with alkaline hydrogen peroxide

Starch/polyester films: simultaneous optimisation of the properties for the production of biodegradable plastic bags

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