Properties of Sago Starch-Nanoclay Biocomposites Film

Abstract

This paper reported on properties of sago starch that was compounded with montmorillonite (MMT) nanoclay to form biodegradable composites film. The film was fabricated via film casting method with glycerol as a plasticizer. The investigated biocomposites film was prepared at starch-glycerol/MMT weight fraction of 90/10, 85/15, 80/20 and 75/25. The physical properties of the film, namely thickness and density were studied and results show that incorporation of nanoclay as filler affects the biocomposites physical properties. Scanning Electron Microscope (SEM) and Fourier Transform Infrared Spectroscopy (FTIR) were used to analyze the film’s morphological properties and chemical characteristics, respectively. SEM shows that less clay content in the film produces homogenous phase and well dispersed of clay platelets within the starch matrix. FTIR summarizes that MMT nanoclay is able to form hydrogen bonding with starch.

Preparation and Characterization of Bio-oil Phenolic Foam Reinforced with Montmorillonite

“…The possible schematic of hydrogen bond formation between BPR and MMT is demonstrated in Figure 2. Similarly, this hydrogen bonding between the surface of MMT platelets and OH groups was also found in earlier studies [42,43]. Meanwhile, it should be noted that in the 4% MBPF spectra, the shift of the peak from 3315 (O–H stretching vibration) to 3279 cm −1 was more obvious compared with other spectra, indicating stronger hydrogen bonding between the BPR chains and MMT.…”

Effects of graphene on the behavior of chitosan and starch nanocomposite films

“…Although some studies dealing with chitosan and starch composite films have been performed , there is no previous report on the effect of graphene on the properties of these biopolymers in the form of film. Therefore, the main objective of this work was to study the effects of graphene nanosheets as a reinforcing agent on some physical and mechanical properties of composite films from chitosan and starch.…”

“…Therefore, an effective approach for improving the above situation is needed. Blending starch with other biodegradable polymers or nano particles is a convenient and effective method to overcome these drawbacks .…”