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Park, Hwan-Man; Lee, Won‐Ki; Park, Chan-Young; Cho, Won‐Jei; Ha, Chang‐Sik

doi:10.1023/a:1022308705231

Cited by 421 publications

(60 citation statements)

References 26 publications

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“…Agglomeration of the nanoparticles within the polymer matrix happens due to the high surface area of the nanoparticles and van der Waals forces between them (Ashori et al 2013). Park et al (2003) also tested the effect of the filler concentration of the TPS/clay hybrid with Cloisite Na + and Cloisite 30B. The results indicated that both the tensile and water vapor barrier properties were generally increased with increasing clay content.…”

Section: Fig 2 Flexural and Tensile Flexural Modulus (Moet And Moeb) mentioning

confidence: 99%

Physical and Mechanical Properties of Walnut Shell Flour-Filled Thermoplastic Starch Composites

2016

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The goal of this work was to evaluate the technical feasibility of walnut shell flour (WSF) as substitute for wood in walnut shell flour/thermoplastic starch (WSF/TPS) composites. The effects of walnut shell flour (WSF), thermoplastic starch (TPS), and nanoclay on the physical and mechanical properties of WSF/TPS composites were investigated. The composite samples were formed in a Colin extruder with four-chamber heat with temperatures. Then, test samples were made using injection molding. The addition of up to 40% WSF greatly improved the tensile strength, flexural strength, and elasticity modulus of the composite. Also, the composites made with higher WSF contents had increased thickness swelling and water absorption. The incorporation of nanoclay (0% to 5%), greatly improved the tensile properties. Soil burial degradation experiments showed that biodegradation was accelerated by the increase of starch in the composite mixtures. The study showed that WSF can be successfully utilized for the manufacture of composites with useful physical and mechanical properties.

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Section: Fig 2 Flexural and Tensile Flexural Modulus (Moet And Moeb) mentioning

confidence: 99%

Physical and Mechanical Properties of Walnut Shell Flour-Filled Thermoplastic Starch Composites

2016

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“…Polymer/clay nanocomposites, where nanometer-thin clay platelets are dispersed in polymer matrices, possess enhanced gas barrier properties, and hence they have been investigated in many laboratories [4]- [12]. The mechanism of barrier improvement is explained by using the tortuous path model [13] [14].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Maltose-Pendant Polymer/Mica Nanocomposites and Their Application to Oxygen Gas Barrier Films

Sasaki¹,

Nagaoka²,

Horikawa³

et al. 2014

JBNB

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Maltose-pendant polymer/mica nanocomposites were prepared by a solution intercalation method. For organic composite part, 1) maltose-pendant polymer (homopolymer) and 2) the copolymer of maltose-pendant monomer and a small amount of N,N-Dimethylamino propylacrylamide, methyl chloride quartenary were used. The morphological studies (XRD and FE-SEM) revealed that the hybrid of maltose-pendant polymer was a conventional phase separated composite. On the other hand, the hybrid using the copolymer exhibited exfoliated structure. Both the conventional composite of maltose-pendant polymer and the nanocomposite of copolymer were applied to a coating material for oxygen gas barrier layer on a nylon-6 film, and oxygen transmission rates of the films were evaluated. Maltose-pendant polymer had a good oxygen barrier property under dry condition, and the barrier property under wet condition was improved by the hybridization with mica. In contrast, the barrier property of copolymer was slightly inferior to that of maltosependant polymer. However, under dry condition, it can be seen that the nanocomposite of copolymer improves the barrier property more effectively than the case of conventional composite of maltose-pendant polymer.

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“…PCNs show significant improvement in properties when compared with neat polymer and polymers containing micron-sized fillers. Several studies have reported that PCNs show improvement in mechanical properties (Okada et al 1990;Giannelis 1996;Chen et al 2002;Maity et al 2002;Lim et al 2003;Ma et al 2003;Park et al 2003;Pramanik et al 2003;Pramoda et al 2003), a decrease in gas permeability (Yano et al 1993;Messersmith & Giannelis 1995;Bharadwaj 2001;Xu et al 2001) and flammability (Gilman et al 1997(Gilman et al , 2000Gilman 1999) and also affect the biodegradability of biodegradable polymers (Ray et al 2002). There has also been considerable interest in modelling and in the simulation and development of new theories for PCNs.…”

Section: Introductionmentioning

confidence: 99%

Use of unnatural amino acids for design of novel organomodified clays as components of nanocomposite biomaterials

Katti

Ambre

Peterka

et al. 2010

Phil. Trans. R. Soc. A.

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Sodium montmorillonite (Na-MMT) clay was modified with three different unnatural amino acids in order to design intercalated clay structures that may be used for bone biomaterials applications. Prior work on polymer-clay nanocomposites (PCNs) has indicated the effect of the appropriate choice of modifiers on enhancing properties of PCNs. Our X-ray diffraction results indicate an increase in the d-spacing of Na-MMT clay after it was modified with the three unnatural amino acids. Transmission Fourier transform infrared spectroscopy experiments were carried out on the unmodified and modified MMT clay samples to study the molecular interactions between the amino acids used as modifiers and the Na-MMT clay. Cell culture experiments showed that the Na-MMT clay modified with the three amino acids was biocompatible as were the modified clay-incorporated films of chitosan/polygalacturonic acid/hydroxyapatite.

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Untitled

Cited by 421 publications

References 26 publications

Physical and Mechanical Properties of Walnut Shell Flour-Filled Thermoplastic Starch Composites

Physical and Mechanical Properties of Walnut Shell Flour-Filled Thermoplastic Starch Composites

Preparation and Characterization of Maltose-Pendant Polymer/Mica Nanocomposites and Their Application to Oxygen Gas Barrier Films

Use of unnatural amino acids for design of novel organomodified clays as components of nanocomposite biomaterials

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