Biomass-Based Composite Foam from Tapioca Starch/Octenyl Succinate Starch Blended with Alpha-Chitin

Manisara Phiriyawirut,Phatthanachai Hankham,Udomporn Pongvichai,Ratchanok Butsukhon

doi:10.4236/ojcm.2019.94022

Manisara Phiriyawirut, Phatthanachai Hankham + Show 2 more

Open Access

https://doi.org/10.4236/ojcm.2019.94022

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Abstract

The research study properties of the starch-based foam from mixed between tapioca starch and octenyl succinate starch (OSA starch), have addition alpha-chitin prepared by hot compression molding method. Tapioca starch with 50% OSA starch was investigated. For composite foam tapioca starch mixed by adding alpha-chitin at 5% - 30% of starch weight, it was found that water absorption was reduced. The higher alpha-chitin content in blending foam, the denser of foam structure observed which resulted in increasing of the foam density. The maximum bending stress of composite starch was decreased, but increasing the maximum bending strain.

Highlights

Tapioca starch foam is one of natural materials for packaging industry which is produced by kneading the starch with appropriate amount of water to gelatinization, in which the tiny air bubble formation embedded inside of materials [1]
One method to overcome water resistance problem of the foam is blending with other types of biodegradable polymers which had been deeply studied such as polycaprolactone (PCL), polylactic acid (PLA) and polybutylene succinate (PBS) [4] [5] [6]
Blended starch foams show peaks appearing around 3310 cm−1 (O-H stretching), 2919 cm−1 (C-H stretching), 1735 cm−1 (C=O stretching) and 995 cm−1 (C-O stretching of glycosidic bond), respectively

Summary

Introduction

Tapioca starch foam is one of natural materials for packaging industry which is produced by kneading the starch with appropriate amount of water to gelatinization, in which the tiny air bubble formation embedded inside of materials [1]. The main structure of the OSA, natural starch but less susceptible to water, is well compatible with tapioca giving well-homogenized material, and maintaining overall physical properties from the starch foam [3]. One method to overcome water resistance problem of the foam is blending with other types of biodegradable polymers which had been deeply studied such as polycaprolactone (PCL), polylactic acid (PLA) and polybutylene succinate (PBS) [4] [5] [6]. It was found that water resistance of starch composite foams was increasing as incorporated of biodegradable synthetic polymers

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