Biodegradable material and preparation method thereof
A biodegradable material and biological technology, applied in the field of biodegradable materials, can solve the problems of plastic products that are difficult to decompose, human environmental hazards, resource consumption, etc., and achieve the effects of accelerating natural degradation, improving compatibility, and increasing internal cohesion
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Embodiment example 1
[0054] Weigh 120 parts of corn straw, 130 parts of wheat straw, 120 parts of soybean straw, 80 parts of sodium hydroxide solution, 60 parts of urea, 25 parts of vinyl acetate, 25 parts of acetic anhydride, and 20 parts of potassium carbonate, and use a 30-mesh sieve to measure the Straw, wheat straw and soybean straw are screened, and the screened corn straw, wheat straw and soybean straw are roasted with an infrared conveyor oven at a temperature of 105°C for 40 minutes. The corn stalks, wheat straws and soybean stalks were put into sodium hydroxide solution, and soaked for 8 hours under the action of ultrasonic waves, so that the corn stalks, wheat straws and soybean stalks were fully swollen, filtered, and the filtered residue was mixed with urea and sent to Put it into the reaction kettle, explode under the steam pressure of 4.8MPa, hold the pressure for 350s, send vinyl acetate, acetic anhydride and potassium carbonate into the reaction kettle and mix evenly, stir at 95°C ...
Embodiment example 2
[0061] Weigh 120 parts of corn straw, 130 parts of wheat straw, 120 parts of soybean straw, 80 parts of sodium hydroxide solution, 60 parts of urea, 25 parts of vinyl acetate, 25 parts of acetic anhydride, and 20 parts of potassium carbonate, and use a 30-mesh sieve to measure the Straw, wheat straw and soybean straw are screened, and the screened corn straw, wheat straw and soybean straw are roasted with an infrared conveyor oven at a temperature of 105°C for 40 minutes. The corn stalks, wheat straws and soybean stalks were put into sodium hydroxide solution, and soaked for 8 hours under the action of ultrasonic waves, so that the corn stalks, wheat straws and soybean stalks were fully swollen, filtered, and the filtered residue was mixed with urea and sent to Put it into the reaction kettle, explode under the steam pressure of 4.8MPa, hold the pressure for 350s, send vinyl acetate, acetic anhydride and potassium carbonate into the reaction kettle and mix evenly, stir at 95°C ...
Embodiment example 3
[0068] Weigh 120 parts of corn straw, 130 parts of wheat straw, 120 parts of soybean straw, 80 parts of sodium hydroxide solution, 60 parts of urea, 25 parts of vinyl acetate, 25 parts of acetic anhydride, and 20 parts of potassium carbonate, and use a 30-mesh sieve to measure the Straw, wheat straw and soybean straw are screened, and the screened corn straw, wheat straw and soybean straw are roasted with an infrared conveyor oven at a temperature of 105°C for 40 minutes. The corn stalks, wheat straws and soybean stalks were put into sodium hydroxide solution, and soaked for 8 hours under the action of ultrasonic waves, so that the corn stalks, wheat straws and soybean stalks were fully swollen, filtered, and the filtered residue was mixed with urea and sent to Put it into the reaction kettle, explode under the steam pressure of 4.8MPa, hold the pressure for 350s, send vinyl acetate, acetic anhydride and potassium carbonate into the reaction kettle and mix evenly, stir at 95°C ...
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