Preparation and crystalline morphology of biodegradable starch/clay nanocomposites

Zhang, Qingxin; Yu, Zhong‐Zhen; Xie, Xiaolin; Naito, Kimiyoshi; Kagawa, Yutaka

doi:10.1016/j.polymer.2007.09.051

Cited by 112 publications

(78 citation statements)

References 22 publications

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“…The mechanism of intercalation by diffusion of starch molecules into the clay galleries was discussed by Zhang et al [115]. An increase in the d-spacing of the organically modified clays was attributed to the intercalation with starch molecules, while the increase of the d-spacing of the native clays was mainly caused by the intercalation with glycerol ( Fig.…”

Section: Clays and Clay Modificationmentioning

confidence: 89%

“…When a good interfacial interaction exists in an organic-inorganic composite, the inorganic phase can act as restriction sites for the movement of polymer chains, which typically increase the degradation temperature. Also, the presence of the filler assists the char formation, during the thermal decomposition [115,175]. A typical thermogram for wheat starch/glycerol (WS) is showed in Fig.…”

Section: Thermal Stabilitymentioning

confidence: 99%

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Starch/Clay Nano-Biocomposites

Vázquez

Cyras

Álvarez

et al. 2012

Green Energy and Technology

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The aim of this chapter is to describe the main studies and results on starch-based nanocomposites reinforced with clay particles. This particular combination leads to the formation of a nanocomposite material with novel properties. However, a good knowledge about starch (structure, type, chemical and physical modification) and its rheological behaviour is necessary for developing these nanocomposites. Many factors and processing parameters affect the final properties of the starch based nano-biocomposites. The main factors which influence the mechanical properties of the nano-biocomposites will be analyzed such as the type of clay, the chemical modification of clay, the type of plasticizer, the water humidity test conditions, the use of chemically modified starches, the thermal stability and water absorption. In addition, the influence of different processing techniques and mixing methods will be studied.

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Section: Clays and Clay Modificationmentioning

confidence: 89%

Section: Thermal Stabilitymentioning

confidence: 99%

Starch/Clay Nano-Biocomposites

Vázquez

Cyras

Álvarez

et al. 2012

Green Energy and Technology

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“…More related to starch-phyllosilicate nano-biocomposites, Zhang et al (2007) proposed a schematic depicting the main force components operating on a pair of adjacent silicate layers in melt processing (Fig. 12).…”

Section: Preparation Techniquesmentioning

confidence: 99%

Advanced Nano-biocomposites Based on Starch

Xie¹,

Pollet²,

Halley³

et al. 2014

Polysaccharides

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Starch as a biopolymer directly extracted from nature has received much attention in recent years due to its strong advantages such as low cost, wide availability, renewability, and total compostability without toxic residues. Starch-based materials always display properties that are less satisfactory than those of traditional polymer materials, which can be ascribed to the inherent characteristics of starch. To make such materials to be truly competitive and to widen its applications, the development of starch-based nano-biocomposites could be a promising solution. This chapter provides the fundamental knowledge related to starch-based nano-biocomposites as well as the most recent developments in this area. Various types of nanofillers that have been used with plasticized starch are discussed such as montmorillonite, cellulose nanowhiskers, and starch nanoparticles. The preparation strategies for starch-based nano-biocomposites with these types of nanofillers and the corresponding dispersion state and related properties are also largely discussed.

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“…Depending on the process conditions and on the matrix/ nanoclay affi nity, diff erent nanocomposite structures can be obtained: 55,66,73 OMMT-Alk2 or OMMT-Bz (see Table 4 for the OMMT designations) led to the formation of micro-biocomposites [74][75][76]78 evidenced by the unchanged values of the d 001 . Higher spacing results were obtained with OMMT-OH, which presents a more hydrophilic character, with a slight d 001 shift and a strong decrease in the diff raction peak intensity, 74,77,79 corresponding to a higher dispersion.…”

Section: Structures Of Mmt-based Nano-biocompositesmentioning

confidence: 99%

“…77 Nano-biocomposites were also elaborated with natural sodium MMT (MMT-Na) due to the hydrophilic characters of starch and the Na-based nanofi ller. [74][75][76][77][78][79][80][81][82][83][84][85][86] [89][90][91][92] have demonstrated that by changing the plasticizer nature, with urea or urea/formamide, for example, exfoliation can also be reached. Nevertheless, these compounds generate ecotoxic residues aft er biodegradation or composting and cannot be used for safe biodegradable materials.…”

Section: Structures Of Mmt-based Nano-biocompositesmentioning

confidence: 99%

Biocomposites based on plasticized starch

Avérous

Halley

2009

Biofuels Bioprod Bioref

186

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The potential of biodegradable polymers, and more particularly that of polymers obtained from agro resources, such as polysaccharides like starch, has long been recognized. This paper examines the effects of sustainable materials based on starch on the macro or nanostructure and subsequent processing, thermomechanical properties and performance properties of plasticized starch polymers. This examination includes a detailed review of the complexity of starch polymers, recent advances in novel starch modifi cations and compounds, and a detailed examination of the effects of plasticized starch macro-biocomposites and nano-biocomposites. Specifi c structures and subsequent properties are controlled by many specifi c factors, such as fi ller shape, size and surface chemistry, processing conditions and environmental aging. In the case of nano-biocomposites, it is evident that nanomaterials polymer matrix interfacial interactions are extremely important to the fi nal nanostructures and performance of these materials.

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Preparation and crystalline morphology of biodegradable starch/clay nanocomposites

Cited by 112 publications

References 22 publications

Starch/Clay Nano-Biocomposites

Starch/Clay Nano-Biocomposites

Advanced Nano-biocomposites Based on Starch

Biocomposites based on plasticized starch

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