Development of wood adhesives using flavonoid‐glycosides from orange mesocarp

Abstract

Condensation products of orange mesocarp extract (flavonoid‐glycosides) and formaldehyde were modified with phenol, cashewnut shell liquid and resorcinol respectively. The copolymer resins formed were used in the formulation of wood adhesives. The glued veneers were evaluated for their shear strength and percentage wood failure assessed. The results showed that the adhesives cured to give gluelines of considerable strength and durability.

Wood adhesives from peanut skin tannin‐formaldehyde resins modified with phenols

“…The results of the six-hour boil tests also indicate that tannin-formaldehyde resins modified with CNSL are protected from water attack once copolymer resins have been formed. Similar observations have been reported for red onion skin tannin-formaldehyde (Akaranta et al, 1996) and orange mesocarp flavonoid-formaldehyde (Akaranta and Wankasi, 1998) resins modified with CNSL.…”

Wood Adhesives Based on Alkaline Extracts from Wastewater Biosolids and Mustard Protein

“…Lately, agricultural byproducts have been used [8]. These include: soy meal [1,5,9,10], chicken feather protein [11], flavonoid-glycosides from orange mesocarp [12], red onion skin tannin [8,13], and meat and bone meal [4]. More recently, microbial biopolymers have been considered [6,[14][15][16][17].…”

Studies on cashew (anacadium) nut shell liquid and resorcinol modified peanut skin tannin extract for wood adhesives

“…Utilization technology for agricultural wastes that has been established include wattle bark (Saadyman, 1974, Pizzi, 1978), bagasse (Saad et al , 1978), Onionskin (Kumar and Dara, 1981; Odozi et al , 1984 and Odozi, 1986) and Akaranta et al , 1996). Orange mesocarp (Akaranta and Wankasi, 1998). Little data has been made available for peanut skin (Randall et al , 1978).…”