Open AccessFormulation and Characterization of Formaldehyde‐Free Chemically Modified Bone‐Based Adhesive for Lignocellulosic Composite Products
Author(s) -
Islam Md Nazrul,
Liza Afroza Akter,
Khatun Mst. Liza,
Faruk Md Omar,
Das Atanu Kumar,
Dey Moutusi,
Akanda Md Jahurul Haque
Publication year - 2021
Publication title -
global challenges
Language(s) - English
Resource type - Journals
ISSN - 2056-6646
DOI - 10.1002/gch2.202100002
Subject(s) - adhesive , materials science , bagasse , composite material , thermogravimetric analysis , formaldehyde , polyvinyl acetate , fourier transform infrared spectroscopy , composite number , polyvinyl alcohol , shear strength (soil) , chemical engineering , polymer , pulp and paper industry , chemistry , organic chemistry , layer (electronics) , engineering , environmental science , soil science , soil water
This study investigates the efficacy of chemically modified bone adhesive as a formaldehyde‐free binder for wood‐based industries. Two different types of adhesive are formulated after chemical modification of bone powder using sulfuric acid (0.5 m ) and polyvinyl acetate (PVA). Gel time, solid content, Fourier‐transform infrared spectroscopy (FT‐IR), thermogravimetric analysis (TGA), viscosity, and single lap joint test for shear strength are analyzed in order to assess the adhesive properties. To analyze the efficacy of the formulated adhesive, particleboards are fabricated using boiled and unboiled sugarcane bagasse. The physical and mechanical properties of the fabricated panels are measured following ASTM standards. It is found that adhesive Type C (T‐C) has the shortest gel time of 4.2 min for the highest shear strength, i.e., 5.31 MPa. The particleboard (BTC‐2) fabricated using T‐C adhesive shows a highest density of 0.73 g cm −3 , a modulus of elasticity (MOE) of 1975 N mm −2 , and a modulus of rupture (MOR) of 11.80 N mm −2 . The dimensional stability of the fabricated particleboards does not follow the standard requirements; however, further study might be helpful for using the chemically modified bone adhesive as a biobased adhesive.