Rapid degradation type soybean protein simulation plastic film and preparation method thereof
A plastic film and rapid degradation technology, which is applied in the field of rapidly degradable soybean protein simulated plastic film and its preparation, can solve the problems of insufficient mechanical properties and slow degradation speed, and achieve good biodegradability, uniform thickness, and degradation conditions simple effect
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Embodiment 1
[0019] A rapidly degradable soybean protein simulated plastic film and a preparation method thereof, characterized in that it is prepared according to the following steps:
[0020] (1) Add 2.5% polyvinyl alcohol to the beaker and dissolve it in a water bath at 90°C until the polyvinyl alcohol is completely dissolved and cool to 30~50°C, add 2% soybean protein isolate under magnetic stirring, and then add 2 The nanocellulose homogenate after % high-pressure homogenization, adding weight percent content is 5% dehydrated alcohol, 2.0% glycerol, then adds distilled water constant volume;
[0021] (2) Adjust the pH value of the constant volume solution to 7.0, stir continuously with a magnetic stirrer, heat in a water bath at 50°C for 20 minutes, and use an ultrasonic cleaner for 10 minutes to perform defoaming and degassing treatment. After degassing, the film-forming solution is poured into an acrylic plate In the tank, the amount of poured film is 60g;
[0022] (3) Air-dry the ...
Embodiment 2
[0025] A rapidly degradable soybean protein simulated plastic film and a preparation method thereof, characterized in that it is prepared according to the following steps:
[0026] (1) Add 2% polyvinyl alcohol to the beaker and dissolve it in a water bath at 90°C until the polyvinyl alcohol is completely dissolved and cool to 30~50°C, add 2% soybean protein isolate under magnetic stirring, and then add 2.5 The nanocellulose homogenate after % high-pressure homogenization, adding weight percent content is 5% dehydrated alcohol, 2.0% glycerol, then adds distilled water constant volume;
[0027] (2) Adjust the pH value of the constant volume solution to 7.0, stir continuously with a magnetic stirrer, heat in a water bath at 50°C for 20 minutes, and use an ultrasonic cleaner for 10 minutes to perform defoaming and degassing treatment. After degassing, the film-forming solution is poured into an acrylic plate In the tank, the amount of poured film is 60g;
[0028] (3) Air-dry the ...
Embodiment 3
[0031] A rapidly degradable soybean protein simulated plastic film and a preparation method thereof, characterized in that it is prepared according to the following steps:
[0032] (1) Add 1.5% polyvinyl alcohol to the beaker and dissolve it in a water bath at 90°C until the polyvinyl alcohol is completely dissolved and cool to 30~50°C, add 4% soybean protein isolate under magnetic stirring, and then add 3 The nanocellulose homogenate after % high-pressure homogenization, adding weight percent content is 5% dehydrated alcohol, 2.0% glycerol, then adds distilled water constant volume;
[0033] (2) Adjust the pH value of the constant volume solution to 7.0, stir continuously with a magnetic stirrer, heat in a water bath at 50°C for 20 minutes, and use an ultrasonic cleaner for 10 minutes to perform defoaming and degassing treatment. After degassing, the film-forming solution is poured into an acrylic plate In the tank, the amount of poured film is 60g;
[0034] (3) Air-dry the ...
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