The Effect of Chitosan Loading on the Properties of Chitosan Filled Epoxidized Natural Rubber Compounds

Shaari, S.M.; Ismail, Hanafi; Othman, Nadras

doi:10.4028/www.scientific.net/kem.471-472.851

Cited by 4 publications

(3 citation statements)

References 21 publications

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“…involve the utilization of natural rubber or its derivatives and chitosan [8][9][10][11][12][13][14][15][16]. Of special interest to our current work, Lertwattanaseri et al [13] reported the preparation of a novel model case of bionanocomposites comprising nanofibrous chitosan bonded to the backbone of epoxidized natural rubber (ENR) via both amino and hydroxyl groups.…”

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confidence: 99%

Preparation and characterization of biopolymers comprising chitosan-grafted-ENR via acid-induced reaction of ENR50 with chitosan

Haris¹,

Raju²

2014

Express Polym. Lett.

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This paper describes the first detailed tailored-approach for the preparation of biopolymers comprising chitosan (CTS) grafted onto the backbone of epoxidized natural rubber (CTS-g-ENR). In a typical experiment, appropriate amount of CTS and AlCl3•6H2O was added to a specified amount of ENR50 (ENR with about 50% epoxy content) dissolved in a dual-solvent consisting of 1,4-dioxane and water (97.5:2.5% v/v) and the resulting mixture refluxed with continuous stirring for 6 hours. Nuclear magnetic resonance (NMR) spectral analysis of a biocomposite, CTS-g-ENR-P1, revealed that its epoxy content is 22.36% which is considerably lower than 44.93% as determined for ENR50-control (ENR50 derivative obtained under similar experimental condition but in the absence of CTS). This means that the grafting of CTS onto the backbone of ENR had occurred. The revelation is affirmed by the presence of the characteristic absorption bands of CTS and ENR, and the appearance of new bands at 1219, 902 and 733 cm–1 in the Fourier transform infrared (FTIR) spectrum of CTS-g-ENR-P1. Further evidence that CTS had been successfully grafted onto the backbone of ENR can be deduced and described in this paper from the data obtained by means of Differential Scanning Calorimetric analysis, Thermogravimetric analysis and Variable Pressure Scanning Electron Microscopy

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confidence: 99%

Preparation and characterization of biopolymers comprising chitosan-grafted-ENR via acid-induced reaction of ENR50 with chitosan

Haris¹,

Raju²

2014

Express Polym. Lett.

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“…Some types significantly affect rubber blends' mechanical and physical properties. Despite having minimal effect on the properties of the blend, inert fillers improve the processability of the blends and reduce their cost [7]. A significant disadvantage of natural rubber-based blends is matrix degradation, the rate of which can be influenced but not completely reversed.…”

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confidence: 99%

Study of the influence of Chitosan on selected properties of elastomeric blends

Labaj¹,

Skalková²,

Kopal³

et al. 2023

Materialwissenschaft Werkst

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The current trend of greening production is increasingly bringing to the fore alternative types of fillers, such as biofillers, which are obtained from renewable sources or waste [1, 2]. Unfortunately, biofillers cannot be used as majority fillers due to their incompatibility with elastomer matrices and high biodegradability susceptibility [3, 4]. Therefore, the way to their efficient industrial use leads through supplementary fillers to the commonly used inorganic fillers and the partial replacement of these fillers in the blend. The influence of Chitosan as the majority filler has been investigated and its combination with carbon black filler on the elastomeric matrix of natural rubber was investigated in the presented work. The results were compared with natural rubber blends filled exclusively with carbon black. Natural rubber blends with different content of Chitosan and carbon black and their various combinations were subjected to the determination of vulcanization parameters, mechanical properties before and after thermo‐oxidative aging, and scanning electron microscopy. Although the scanning electron microscopy analysis confirmed the expected negative impact of Chitosan as the majority filler on the tensile properties of the vulcanizate, its significant impact on the main vulcanization parameters such as scorch time and optimal vulcanization time was also demonstrated. In the case of blends with a combination of carbon black and Chitosan, it has been shown that Chitosan, in addition to the filler function, also acts as an antioxidant agent through its functional groups, limiting the process of degradation of mechanical properties of natural rubber blends due to their thermo‐oxidative aging. It can be concluded that precisely because of its antioxidant and anti‐degradation effects, Chitosan can be, in addition to carbon black filler, an excellent additional filler for elastomeric blends.

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“…Blending polymers with another polymer for improve some properties of blends as well as good thermal stability is currently one of important topics. A number of publications [1][2][3][4] deal with incorporation of hydrophilic biopolymer such as chitosan with the epoxidized natural rubber (ENR). Generally, chitosan is biocompatible and biodegradable with wide range of applications in cosmetic, pharmaceutical, medical industries and polymer electrolyte fuel cell.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Characterization of Epoxidized Natural Rubber-Chitosan Membrane

Taweepreda

Wichianchom

2013

AMR

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The membranes obtained from the mixtures of epoxidized natural rubber latex (ENR) and chitosan solution were prepared and characterized. The chemical structure of the membrane was confirmed by ATR-FT-IR spectroscopy and found the peak at 1315 and 1155 cm-1 indicated ether linkage was formed between epoxide group and chitosan corresponding with an enhancement of their mechanical properties which were observed using dynamic mechanical thermal analysis (DMTA). The dielectric properties and ionic conductivity of membrane were investigated using LCR meter and found that the ionic conductivity was increased with increasing the chitosan content.

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The Effect of Chitosan Loading on the Properties of Chitosan Filled Epoxidized Natural Rubber Compounds

Cited by 4 publications

References 21 publications

Preparation and characterization of biopolymers comprising chitosan-grafted-ENR via acid-induced reaction of ENR50 with chitosan

Preparation and characterization of biopolymers comprising chitosan-grafted-ENR via acid-induced reaction of ENR50 with chitosan

Study of the influence of Chitosan on selected properties of elastomeric blends

Fabrication and Characterization of Epoxidized Natural Rubber-Chitosan Membrane

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