Keratin hydrolysate-modified amino resin for particle board panel product
Tóm tắt
Urea formaldehyde-based amino resins were prepared in the laboratory using keratin hydrolysate through copolymerization reaction. Conventional urea formaldehyde amino resins were also synthesized without the addition of keratin hydrolysate powder during the reaction. The main aim of this study was developed to keratin hydrolysate-modified urea formaldehyde amino resin adhesive for the bonding of face and core particle. Low formaldehyde content amino resin has been synthesized with the help of different variables factors like urea formaldehyde mole ratio, adding a sequence of keratin hydrolysate and percentage of keratin hydrolysate. The synthesized resins were mixed with ammonium chloride as hardener and the wood-based particle board panels were made. The physical, mechanical and chemical properties of the modified and conventional were determined which include flow time, gel time, solid content and pH. Bond quality between resin and particles was evaluated along with the formaldehyde emission. The optimized results show that percentage of 5% keratin hydrolysate and adding keratin hydrolysate before the third feeding of urea is the best.
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