Film-Forming Starch Composites for Agricultural Applications

Gražulevičienė, Violeta; Treinytė, Jolanta; Zaleckas, Ernestas

doi:10.1007/s10924-011-0400-7

Cited by 2 publications

(2 citation statements)

References 34 publications

(30 reference statements)

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“…Besides applications as films, some research showed that they could be used to construct disposable plant pots. By adjusting the ratio of its component(starch, glycerol, rapeseed cake, and urea), the pH of the plant pots can be raised to reduce some danger to plants [45].…”

Section: Current Study On Agricultural Applicationsmentioning

confidence: 99%

A review on biodegradable polymer: Shortcomings, developments, and future direction

Xue

2023

ACE

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With the continuous progress and development of the world's economy and science, people's awareness of environmental protection has gradually increased. Polymer materials have brought great convenience to modern people's daily life and work, and their application fields are becoming wider. However, on the one hand, the comprehensive application of polymer materials has greatly improved our level of people's daily life, and on the other hand, it also brings a certain pollution to the environment. Because some traditional polymer composites can not degrade immediately, there may be a big problem of pollution and emission. Therefore, how to develop a biodegradable polymer material has become a research hotspot. This paper reviewed the current market share of biodegradable polymers, the classification of current biodegradable polymers, and the applications of biodegradable polymers. By providing that information, this paper aims to help understand the big picture of biodegradable polymers and contribute to their future developments.

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Section: Current Study On Agricultural Applicationsmentioning

confidence: 99%

A review on biodegradable polymer: Shortcomings, developments, and future direction

Xue

2023

ACE

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“…Film casting has been widely used for starch-based polymer film processing for food, conventional plastic replacing material and agricultural use (Bourtoom and Chinnan, 2008, Grazuleviciene et al, 2012, Koch et al, 2010, Lu et al, 2012, Wu and Zhang, 2001, Jimenez et al, 2012a. The general process includes the preparation of a suspension mixture followed by gelatinisation, casting and drying.…”

Section: Tps Processingmentioning

confidence: 99%

Highly functional green materials platform: Starch-ionic liquid-carbon nanotube polymer melt nanocomposites

Liu¹

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Starch is a promising biodegradable polymer material which has attracted attention recently. A renewable and biodegradable resource can potentially address the shortage of conventional petroleum-based polymers and help solve the problem of environmental pollution from the use of these polymers. To use starch in polymer processing, gelatinisation, which is the process to disrupt the native starch structure, must happen to turn the starch in to an amorphous thermoplastic starch (TPS). However, water, the conventional gelatinisation agent and plasticiser, is extremely volatile and will evaporate during thermal processing. This leads to high melt viscosities, processing difficulties and hence poor product quality. In addition the mechanical properties of the resulting TPS products are not as high as that of the currently used petroleum-based polymers that they seek to replace.Therefore, potential solutions for TPS processing and application development is to use other plasticisers to aid processing and/or to reinforce TPS with nano-particles. One of the key tasks of this project was to understand the plasticizing effects of ionic liquids (ILs) in TPS processing and interpreting these in terms of the molecular interactions between the components. In addition the role of adding nano-particles, in the form of carbon nanotubes, in an attempt to strengthen TPS was investigated. The ultimate aim was to provide design guidelines to produce high value added biodegradable nanocomposites.Three types of ionic liquids (ILs) were considered: 1-ethyl-3-methylimidazolium acetate ([Emim][OAc]), 1-allyl-3-methylimidazolium chloride ([Amim]Cl) and 1-butyl-3-methylimidazolium chloride ([Bmim]Cl). They were processed in batches of 150g by thermal mixing. Their behaviours were compared to glycerol as plasticisers of TPS, and their effects on TPS processing, water uptake during conditioning, mechanical properties, thermal stabilities, crystallisation behaviour and molecular interaction were studied. Both spectroscopic and X-ray analysis techniques were used to investigate the interactions that occurred, and these were related to the material characteristics. Then, multi-walled carbon nanotubes (MWCNTs) were introduced to the TPS matrix to investigate their behaviour as a strengthening agent and also to potentially create a functional material with useful electrical properties.The results demonstrated that the ILs were effective plasticisers for TPS. However, whilst their use improved the flexibility of TPS, mechanical strength and thermal stability were decreased.The molecular interactions between TPS and ILs were found to differ between TPS and glycerol. This led to differences in the crystalline structures formed, 2% to 4% more water Page | iii uptake during conditioning and hence up to a 90% decrease in Young's modulus. In particular the effect of water uptake during conditioning was identified as the key contributor to the ultimate mechanical properties. The IL plasticised TPS were also found to be less thermally stable.In or...

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Film-Forming Starch Composites for Agricultural Applications

Cited by 2 publications

References 34 publications

A review on biodegradable polymer: Shortcomings, developments, and future direction

A review on biodegradable polymer: Shortcomings, developments, and future direction

Highly functional green materials platform: Starch-ionic liquid-carbon nanotube polymer melt nanocomposites

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