Biomass-base and waterproof wooden adhesive without formaldehyde and its production
A wood adhesive and biomass technology, applied in the direction of lignocellulosic material adhesives, adhesive types, etc., can solve the problems of high price, high price and thin profit of wood adhesives, and achieve a wide range of biomass sources and superior water resistance. , the effect of good practical performance
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example 1
[0032] Weigh 50 parts of corn stalks, after removing impurities and crushing pretreatment, add 30 parts of xylitol, 20 parts of propylene carbonate, liquefy at 195 °C and 1.5 atm pressure for 55 minutes, pass through a colloid mill, and then add 20 parts 1 part of tartaric acid and 20 parts of phthalic anhydride, heated and melted, and stirred evenly. After cooling, add 1 part of iron stearate and mix well. A new type of wood adhesive can be obtained.
[0033] Conditions of Use
[0034] Wood moisture content / %
example 2
[0036] Weigh 100 parts of yellowed aged rice, after pretreatment, add 30 parts of xylitol, 20 parts of propylene carbonate, liquefy at 180°C and 1.0 atm pressure for 35 minutes, pass through a colloid mill, and then add 20 parts of tartaric acid And 20 parts of phthalic anhydride, heated and melted, stirred evenly. After cooling, add 0.8 parts of magnesium stearate and mix well. A new type of wood adhesive can be obtained.
[0037] Conditions of Use
example 3
[0039] Weigh 60 parts of waste paper, after removing impurities and crushing pretreatment, add 40 parts of xylitol, 20 parts of propylene carbonate, liquefy at 190 °C and 1.2 atm pressure for 55 minutes, pass through a colloid mill, and then add 20 parts 1 part of tartaric acid and 20 parts of phthalic anhydride, heated and melted, and stirred evenly. After cooling, add 0.8 parts of iron stearate and mix well. A new type of wood adhesive can be obtained.
[0040] Conditions of Use
[0041] Glue amount (double side)
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