Open AccessStarch-based biofoams reinforced with microcrystalline cellulose from banana stem: Hydrophobicity and Biodegradability
Author(s) -
Syahrul Fatrozi,
Linda Purwanti,
Sandra Kartika Sari,
Muhammad Naufal Ariesta,
Triana Kusumaningsih,
Soerya Dewi Marliyana
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/858/1/012037
Subject(s) - starch , microcrystalline cellulose , biodegradation , contact angle , cellulose , hydrolysis , materials science , composite number , acid hydrolysis , composite material , chemical engineering , polymer science , chemistry , food science , organic chemistry , engineering
Microcrystalline cellulose was isolated from the banana stem, an abundant but underutilized bioresource, by using three main steps, specifically bleaching, alkaline treatment and acid hydrolysis. The isolated MC was used to reinforce starch-based biofoams with different loadings of 0%, 2%, 4%, and 6%. The result of contact angle measurement using the LB-ADSA method achieved remarkable increases of contact angle value as the MC loading increased from 0% to 6%. In addition, compared to starch-based biofoams, starch/MC composite biofoams showed improved biodegradability. The starch/MC composite biofoams displayed good hydrophobicity properties that can potentially represent a sustainable and green alternative for packaging and insulation materials.