Modified bone glue adhesive and preparation method thereof
An adhesive and bone glue technology, applied in the field of bone glue adhesives, can solve the problems of difficult control of reaction conditions, toxic modifiers, difficult industrialization, etc., and achieve the effects of saving raw materials, improving water resistance, and reducing production costs.
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Embodiment 1
[0034] A preparation method of modified bone glue adhesive, comprising the following steps:
[0035] 1) In terms of parts by mass, mix 1 part of bone glue with 2 parts of water by mass. After the bone glue is fully swollen to form a glue, heat it to 50-68 °C, and then add 0.013 parts of solid NaOH and 0.002 parts of solid Ca(OH ) 2 , heat preservation and hydrolysis for 40min;
[0036] 2) After the hydrolysis is completed, lower the temperature to 35-45°C, and add the following in sequence to each 100 parts of the hydrolyzed glue:
[0037] Add 0.5 parts of urea and stir for 0.5 h at a speed of 150 rpm; add 1 part of sodium lauryl sulfate and 0.3 parts of starch and stir for 1.5 h at a speed of 150 rpm; add 2 parts of ethanol and stir at a speed of 150 After stirring at a speed of rpm for 0.5h, a yellow-brown viscous liquid was obtained, which was the modified bone glue adhesive.
Embodiment 2
[0039] A preparation method of modified bone glue adhesive, comprising the following steps:
[0040] 1) In terms of parts by mass, mix 1 part of bone glue with 1.6 parts of water by mass. After the bone glue is fully swollen to form a glue, heat it to 58-60°C, and then add 0.01 part of solid NaOH and 0.001 part of solid Ca(OH ) 2 , heat preservation and hydrolysis for 35 minutes;
[0041] 2) After the hydrolysis is completed, lower the temperature to 38°C, and add the following in sequence to each 100 parts of the hydrolyzed glue:
[0042] Add 0.3 parts of urea and stir for 40 minutes at a speed of 120 rpm; add 0.8 parts of sodium lauryl sulfate and 0.2 parts of cellulose and stir for 1.5 hours at a speed of 120 rpm; add 1.5 parts of ethanol and stir at a speed of 120 After stirring at a speed of rpm for 0.5h, a yellow-brown viscous liquid was obtained, which was the modified bone glue adhesive.
Embodiment 3
[0044] A preparation method of modified bone glue adhesive, comprising the following steps:
[0045]1) In terms of parts by mass, mix 1 part of bone glue with 2.2 parts of water by mass. After the bone glue is fully swollen to form a glue solution, heat it to 60-65°C, and then add 0.016 parts of solid NaOH and 0.003 parts of solid Ca(OH ) 2 , heat preservation and hydrolysis for 45 minutes;
[0046] 2) After the hydrolysis is completed, lower the temperature to 40°C, and add the following in sequence to each 100 parts of the hydrolyzed glue:
[0047] Add 0.5 parts of urea and stir for 40 minutes at a speed of 200 rpm; add 1.2 parts of sodium lauryl sulfate and 0.2 parts of cellulose and stir for 1.5 hours at a speed of 200 rpm; add 1.5 parts of ethanol and stir at a speed of 200 After stirring at a speed of rpm for 0.5h, a yellow-brown viscous liquid was obtained, which was the modified bone glue adhesive.
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