Formulation and Characterization of Formaldehyde‐Free Chemically Modified Bone‐Based Adhesive for Lignocellulosic Composite Products. Issue 9 (27th May 2021)

• Record Type: Journal Article
• Authors: Islam, Md Nazrul; Liza, Afroza Akter; Khatun, Mst. Liza; Faruk, Md Omar; Das, Atanu Kumar; Dey, Moutusi; Akanda, Md Jahurul Haque
• Is Part Of: Global challenges. Volume 5:Issue 9(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-05-27
• Subjects: biobased adhesive -- chemical modification -- mechanical properties -- particleboards -- physical properties -- sugarcane bagasse; Climatic changes -- Periodicals; Sustainable development -- Periodicals; Globalization -- Environmental aspects -- Periodicals; Electronic journals; Periodicals; 500
• DOI: 10.1002/gch2.202100002
• Languages: English
• ISSNs: 2056-6646

Abstract

Abstract: 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. Abstract : A renewable and environmentally friendly cattle bone‐based bioadhesive is prepared to replace the formaldehyde‐based adhesive used in wood‐based industries. Particleboards are fabricated using the adhesives and sugarcane bagasse. The shear strength value is 5.31 MPa, which indicates good bonding capability. The properties of the particleboard panel meet the requirements of the standard except the water absorption properties like other bioadhesives.