A kind of spray film-forming composite material for fruit and vegetable or crop bagging and its preparation and application
A technology of spray film formation and composite materials, which is applied in the fields of application, preservation of human or animal bodies, botany equipment and methods, etc., can solve the problems of reducing the use of pesticides and pesticide residues, and achieve the reduction of labor use, simple use methods, The effect of low raw material cost
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Embodiment 1
[0046] (1) Disperse 50g of polyvinylpyrrolidone in 580g of aqueous solution, and stir continuously at room temperature for 0.5h to obtain a uniform and stable viscous solution or gel.
[0047] (2) Finely grind 10 g of graphite, grind it thoroughly, pass through a 200-mesh sieve, mix with 10 mL of 0.1 g / mL allicin solution, stir continuously at room temperature for 0.5 h, do not add dye, and continue mixing at room temperature for 0.5 h to obtain a mixed solution;
[0048] (3) Mix the viscous solution or gel obtained in step (1) with the mixed solution obtained in step (2), and mix and stir at room temperature for 2 days to obtain a spray film-forming fruit and vegetable or crop bagging composite material.
Embodiment 2
[0050] (1) Disperse 50g of pectin in 580g of aqueous solution and stir continuously at room temperature for 1 hour to obtain a uniform and stable viscous solution or gel.
[0051] (2) Grind 10g of diatomite finely, grind it thoroughly, pass through a 200-mesh sieve, mix it with 100mL 0.1g / mL matrine solution, stir continuously at room temperature for 8 hours, add 0.5g food dye, and continue mixing at room temperature for 12 hours to obtain a mixed liquid;
[0052] (3) Mix the viscous solution or gel obtained in step (1) with the mixed solution obtained in step (2), and mix and stir at room temperature for 0.5 h to obtain a spray film-forming fruit and vegetable or crop bagging composite material.
Embodiment 3
[0054] (1) Disperse 50 g of guar gum in 940 g of aqueous solution, and stir continuously at room temperature for 2 hours to obtain a uniform and stable viscous solution or gel.
[0055] (2) Finely grind 10g of clay, grind it thoroughly, pass through a 200-mesh sieve, mix it with 200mL of 0.1g / mL camphor solution, stir continuously at room temperature for 6 hours, add 1g of food dye, and continue mixing and stirring at room temperature for 10 hours to obtain a mixed solution;
[0056] (3) Mix the viscous solution or gel obtained in step (1) with the mixed solution obtained in step (2), and mix and stir at room temperature for 24 hours to obtain a spray film-forming fruit and vegetable or crop bagging composite material.
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