Pizzi (1994) suggested that UF adhesive polymer is the result of condensation reaction of formaldehyde with urea. Advantages of UF adhesives include water soluble, hard, non-flammable, good heat properties, colorless when hardened, and the price is cheap. Hiziroglu (2007) suggested some of the characteristics of the adhesive Urea-Formaldehyde (CH4 N20CH20) x among others: o Gravity: 1:27 o Solid content: 64.8% ...
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