Open AccessWater Hyacinth Cellulose/Silk Fibroin Composite Films: Preparation and Characterization
Author(s) -
P. Chaosri,
Patthraporn Siripipatthana,
Prasong Srihanam
Publication year - 2020
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2021.22973
Subject(s) - fibroin , composite number , cellulose , polymer , chemical engineering , fourier transform infrared spectroscopy , thermal stability , chemistry , polymer chemistry , absorption of water , composite material , materials science , silk , organic chemistry , engineering
This study aimed to extract cellulose from water hyacinth using as material for preparation ofcellulose/silk fibroin composite films. Using scanning electron microscope (SEM), the native silkfibroin film has smooth surfaces and homogeneous texture, while the cellulose film has short fiber onits surface with dense in texture. The composite films have different morphologies depending on typesof polymer used and hierarchical step of film. FTIR analysis showed that the main functional groupsof both cellulose (hydroxyl groups) and silk fibroin (carbonyl and amine groups). The compositefilms also found the absorption peaks of the functional groups which confirmed the composite of bothpolymers. This results indicated that both polymers had well compatible via bonding formation betweenthe functional groups. The composite films have the maximum temperature decomposition (Td,max)slightly higher value than that of native silk fibroin film. This suggested that the interaction betweensilk fibroin and cellulose resulted to increase of thermal stability as well as the flexibility of the film.