Spray-filmed composite material for fruit and vegetable or crop bagging, as well as preparation and application thereof
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A spray film-forming, composite material technology, applied in the fields of application, botanical equipment and methods, preservation of human or animal body, etc. The effect of solving pesticide residues
Active Publication Date: 2016-12-07
SOUTH CHINA AGRI UNIV
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Abstract
Description
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Problems solved by technology
This technology can form a film on the surface of crops (equivalent to bagging on the surface of crops), which can prevent insects and diseases, reduce the use of pesticides to a certain extent, and solve the problem of pesticide residues in crops
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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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.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract
The invention discloses a spray-filmed composite material for fruit and vegetable or crop bagging, as well as preparation and application thereof, and belongs to the field of functional composite materials and fruit and vegetable or crop bagging. The material is prepared from the following components in parts by mass: 5-30 parts of a film-forming substance, 58-94 parts of a dispersing agent, 1-10 parts of a pesticide-loading reinforcing material, 0.1-2 parts of an insect-proofing disease-resisting agent and 0-0.1 part of dye. The material has multiple colors and excellent insect-proofing disease-resisting performance, can be adhered to the surface of fruits and vegetables or crops to form a film to achieve the aim of bagging, does not influence growth of the fruits and vegetables or crops, does not have toxic or side effect, and can sustainably release insect-proofing disease-resisting substances. The material is simple in preparation method and low in raw material cost, can be used for replacing pesticide to solve the problem of pesticide residue, can be used for producing green organic foods, has long acting duration for 1-3 months, and can be used for preventing insects and resisting diseases for fruits, vegetables, crops, flowers, woods and the like.
Description
technical field [0001] The invention belongs to the field of functional composite materials and fruit and vegetable or crop bagging, and in particular relates to a spray film-forming composite material for fruit and vegetable or crop bagging as well as its preparation method and application. Background technique [0002] In today's era, bagged fruits and vegetables are becoming more and more popular and loved by the public, not only because the fruits and vegetables protected by bagging taste crisp and sweet, but also because bagging helps fruits and vegetables prevent pests and diseases, reduces the frequency of pesticide spraying, and thus reduces pesticide residues . But such popular fruit and vegetable bagging is extremely cumbersome to use, and it is necessary to manually build a ladder or climb up a fruit tree to bag and tie the fruits and vegetables one by one. Due to the huge constraints of the use environment, manpower and cost, in addition, the existing fruit and ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information
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