Preparation method of agricultural plastic film capable of being completely degraded
A plastic film, complete degradation technology, applied in the field of plastic film, can solve the problems of difficult degradation and recycling of agricultural plastic film, and achieve the effect of improving biodegradability, increasing soil fertility, and cheap price
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[0032]Example 1
[0033]In parts by weight, weigh 40 parts of corn stalks, 40 parts of tea stalks, 10 parts of polyethylene glycol, 120 parts of absolute ethanol, and 60 parts of deionized water. Place the corn stalks and tea stalks in a pulverizer. Crush at room temperature for 20 minutes to obtain mixed plant fiber powder, add the mixed plant fiber powder to absolute ethanol, stir at 200r / min for 20 minutes at room temperature, let stand for 2h, filter by suction, take the filter cake and place it in a drying box at 40 After drying at ℃ for 1 hour, the treated mixed plant fiber powder was obtained. Polyethylene glycol was added to deionized water, and stirred at 300r / min for 30 minutes in a water bath at 40℃ to obtain a polyethylene glycol solution. Add the mixed plant fiber powder to the polyethylene glycol solution, steam for 2 hours at 60°C in a water bath, filter, and place the filter cake in an oven at 60°C for 1~2 hours to obtain polymer-coated plant fiber powder.
[0034]Then by ...
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[0036]Example 2
[0037]In parts by weight, weigh 50 parts of corn stalks, 50 parts of tea stalks, 15 parts of polyethylene glycol, 140 parts of absolute ethanol, and 70 parts of deionized water. Place the corn stalks and tea stalks in a pulverizer. Crush at room temperature for 25 minutes to obtain mixed plant fiber powder, add the mixed plant fiber powder to absolute ethanol, stir at 250r / min for 25 minutes at room temperature, let stand for 3h, filter by suction, take the filter cake and place it in a drying box at 50 After drying for 3 hours at ℃, the treated mixed plant fiber powder was obtained. Polyethylene glycol was added to deionized water, and stirred at 350r / min for 35min under a water bath at 50℃ to obtain a polyethylene glycol solution. Add the mixed plant fiber powder to the polyethylene glycol solution, steam for 3 hours at 70°C in a water bath, filter, and place the filter cake in an oven at 70°C for 1.5 hours to obtain polymer-coated plant fiber powder;
[0038]Then by w...
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[0040]Example 3
[0041]In parts by weight, weigh 60 parts of corn stalks, 60 parts of tea stalks, 20 parts of polyethylene glycol, 160 parts of absolute ethanol, and 80 parts of deionized water. Place the corn stalks and tea stalks in a pulverizer. Crush at room temperature for 30 minutes to obtain mixed plant fiber powder, add the mixed plant fiber powder to absolute ethanol, stir at 300r / min for 30 minutes at room temperature, let stand for 4 hours, filter by suction, take the filter cake and place it in a drying box at 60 After drying for 2 hours at ℃, the treated mixed plant fiber powder was obtained. Polyethylene glycol was added to deionized water, and stirred at 400r / min for 40 minutes in a water bath at 60℃ to obtain a polyethylene glycol solution. Add the mixed plant fiber powder to the polyethylene glycol solution, cook for 4 hours in a water bath at 80°C, filter, and place the filter cake in an oven at 80°C for 2 hours to obtain polymer-coated plant fiber powder;
[0042]Then ...
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