Effects of Filler Loading and Different Preparation Methods on Properties of Cassava Starch/Natural Rubber Composites

Duy, Nguyen Quang; Azura, A. R.; Ismail, Hanafi

doi:10.1080/03602559.2012.679377

Cited by 10 publications

(6 citation statements)

References 18 publications

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“…Figure displays the X‐ray diffraction patterns for each film. Each of the films shows similar three main diffraction peaks at about 17.5°, 20.6°, and 22.5° characteristic of a semi‐crystalline material . Peaks at 17.5° and 22.5° are characteristic of B‐type crystallinity and at 20.6° of V‐type structure.…”

Section: Resultsmentioning

confidence: 92%

Comparative Study of the Physical and Tensile Properties of Jicama (Pachyrhizus erosus ) Starch Film Prepared Using Three Different Methods

et al. 2019

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The objective of this work is to study the physical and tensile properties of jicama (Pachyrhizus erosus) starch film prepared using three different methods. First, a film is prepared from starch granules after sifting using a sieve shaker. A second film is prepared from starch granules after ultrasonication. Another film is made by sonicating the starch gel. Ultrasonication is performed using an ultrasonic probe. These three different methods have a significant effect on the properties of the film (p ≤ 0.05). The film from the starch granules after sifting using 63 μm mesh size and ultrasonication (labeled as S‐63U film) shows the optimum properties. Opacity for S‐63U film is almost half (48.6%) that of the equivalent non‐sonicated film. S‐63U film has the highest tensile strength (3.1 MPa), the lowest moisture absorption (18% after 8 h in a humid chamber) and water vapor permeability. FESEM morphology of the fracture surface of the sonicated film display a more homogeneous structure compared to films without ultrasonication.

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Section: Resultsmentioning

confidence: 92%

Comparative Study of the Physical and Tensile Properties of Jicama (Pachyrhizus erosus ) Starch Film Prepared Using Three Different Methods

et al. 2019

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“…This is due to not only because of an increase in the crystallinity of the Cs itself but also the network from chemical reaction between starch and sulfur that should affect higher compression stress in the rubber matrix. [ 28,44,55,56 ] However, the NRF filled with more than 8 phr of Cs seems to exceed an optimum value as the compression strength does not significantly differ from the NRF filled with 12 phr of Cs which may come from the agglomeration of Cs at high loading. Figure 6B also shows that Cs–filled rubber matrix is stronger than unfilled rubber matrix, and the initiation of the compression stress plateau from cell buckling is not quite different, but some strain hardening occurs at large strains.…”

Section: Resultsmentioning

confidence: 99%

“…In this study, where the NRFs were designed to be better in shape recoverability, we focused on two scenarios that relate to the modification of the matrix structure using sulfur vulcanization and a natural filler as a semireinforcing agent [ 27,28 ] with both polar and nonpolar properties. [ 29,30 ]…”

Section: Resultsmentioning

confidence: 99%

Approaches toward High Resilience Rubber Foams: Morphology–Mechanics–Thermodynamics Relationships

Prasopdee

Shah

Smitthipong

2021

Macro Materials & Eng

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Natural rubber foam (NRF) products are frequently required in high resilience or high shape recoverability applications, which is in contrast to the fundamental nature of NRF. This study aims to improve NRF properties, such as recovery, by increasing the amount of vulcanizing chemicals (Vc) and adding cassava starch (Cs). Interestingly, increasing the amount of Vc and Cs improves mechanical properties and shape recoverability of NRF although the morphology of NRF with various concentrations of Cs is similar. The ratio of internal energy to the compression force is almost constant with various amounts of Vc and Cs because the degree of freedom of the rubber chains remains stable. NRF possesses better compression strength and shape recoverability with increasing amount of Vc (optimum of 16 phr) and Cs (optimum of 8 phr). Cassava starch is discovered as an attractive filler in comparison to traditional NRF fillers, such as charcoal and silica, due to its relatively low density.

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“…[10][11][12] Composite films containing starch exhibit improved biodegradability. 13,14 As a special kind of starch, waxy corn starch contains less than 1% amylose, gelatinizes easily, and can be processed with ease. 15 Moreover, the hydroxyl groups in waxy corn starch make it compatible with PHEA.…”

Section: Introductionmentioning

confidence: 99%

Properties of composite film based on sucrose polyaldehyde cross‐linked polyhydroxyethyl acrylate and starch

Zhuang

Zhang

2022

J of Applied Polymer Sci

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Composite films composed of biocompatible polymers are used widely in biomedical and food packaging areas. In this work, a new composite film with superior mechanical properties and biodegradability is prepared. The film is composed of biocompatible polyhydroxyethyl acrylate (PHEA) and starch, whose molecular chains are cross‐linked using sucrose polyaldehyde (SPA), a green sucrose derivative. The composite film exhibits an optimal tensile strength and tensile strain of 11.5 MPa and 147.7%, respectively, which can be ascribed to the chemical cross‐linking and hydrogen bond interactions between PHEA and starch. The tests confirm that the composite film shows satisfactory mechanical properties, hydrophilicity, and biodegradability, and thus should have wide applicability in biomedicine, food packaging, and other fields.

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Effects of Filler Loading and Different Preparation Methods on Properties of Cassava Starch/Natural Rubber Composites

Cited by 10 publications

References 18 publications

Comparative Study of the Physical and Tensile Properties of Jicama (Pachyrhizus erosus ) Starch Film Prepared Using Three Different Methods

Comparative Study of the Physical and Tensile Properties of Jicama (Pachyrhizus erosus ) Starch Film Prepared Using Three Different Methods

Approaches toward High Resilience Rubber Foams: Morphology–Mechanics–Thermodynamics Relationships

Properties of composite film based on sucrose polyaldehyde cross‐linked polyhydroxyethyl acrylate and starch

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