Preparation method of anti-aging uvioresistant shading net

Abstract

The invention relates to a preparation method of an anti-aging uvioresistant shading net, and belongs to the technical field of polymer material preparation. The method comprises the steps that cottonand water are mixed, then, the mixture is mixed with cotton stalk, citric acid and the like for performing microbial fermentation, then, a fermentation product is subjected to microwave treatment, grinding and screening are performed to obtain a screened product, finally, the screened product, polyethylene and other auxiliaries are mixed and extruded, and spinning drying is performed to obtain the anti-aging uvioresistant shading net. The cotton is hydrolyzed, a large number of hydroxyls, carboxyls, carbonyls and other epoxy groups are generated on the surface of fiber, cotton fiber is stuckto other molecules in the shading net, other molecules in the shading net are wrapped, the organic functional groups are used for improving the bonding strength, the shading net is difficultly peeledoff, zinc ions are complexed to the cotton fiber, zinc oxide grows on the cotton fiber molecules through nanoscale particles, the uvioresistant capability of the shading net is enhanced, and the goodapplication prospect is achieved.

Description

technical field

[0001] The invention relates to a preparation method of an anti-aging and anti-ultraviolet sunshade net, belonging to the technical field of polymer material preparation. Background technique

[0002] As we all know, the growth of crops is inseparable from sunlight, which can make crops carry out photosynthesis and promote starch accumulation. However, in hot summer, if the sunlight is too strong, the transpiration of crops will be greater than photosynthesis, so that the starch consumption of crops will be too fast, the water will evaporate seriously, and even the crops will dry up and die.

[0003] Shade net, also known as shading net, is a new type of protective covering material for agriculture, fishery, animal husbandry, windproof, and soil cover. After covering in summer, it plays a role of blocking light, rain, moisturizing and cooling. There is also a certain effect of heat preservation and humidification after covering in winter and spring. It is ...

Examples

Embodiment 1

[0031] Preparation of the reaction product:

[0032]Put 500g of cotton in an oven, dry at 60°C for 2 hours to obtain a dry product, put the dry product and distilled water into the reactor at a mass ratio of 1:5, seal the reactor, and fill the reactor with argon until the pressure inside the reactor rises to 1.2MPa, and at the same time raise the temperature inside the reactor to 120°C, and react at constant temperature and pressure for 60 minutes to obtain a reaction product.

[0033] Preparation of fermentation products:

[0034] Add the hydrochloric acid of 16% concentration of reaction product mass and be 0.5mol / L in above-mentioned reactor, mix and stir 80min with the rotating speed of 400r / min with stirring device, after stirring, add dropwise the sodium hydroxide solution that mass fraction is 12% to adjust pH value to neutral to prepare the mixture, by weight, 8 parts of the mixture, 1 part of citric acid, 3 parts of pulverized cotton stalks and 15 parts of water are ...

Embodiment 2

[0044] Preparation of the reaction product:

[0045] Put 600g of cotton in an oven, dry at 65°C for 2 hours to obtain a dry product, put the dry product and distilled water into the reactor at a mass ratio of 1:5, seal the reactor, and fill the reactor with argon until the pressure in the reactor rises to 1.4MPa, and at the same time raise the temperature in the reactor to 130°C, and react at constant temperature and pressure for 70 minutes to obtain a reaction product.

[0046] Preparation of fermentation products:

[0047] Add the hydrochloric acid with the concentration of 18% of the reaction product mass to 0.5mol / L in the above reaction kettle, mix and stir with a stirring device at a speed of 450r / min for 90min, after stirring, add dropwise a mass fraction of 14% sodium hydroxide solution to adjust the pH value to neutral to prepare the mixture, by weight, 9 parts of the mixture, 1 part of citric acid, 4 parts of pulverized cotton stalks and 16 parts of water are droppe...

Embodiment 3

[0057] Preparation of the reaction product:

[0058] Put 700g of cotton in an oven and dry for 3 hours at a temperature of 70°C to obtain a dry product. Put the dry product and distilled water into the reactor at a mass ratio of 1:5, seal the reactor, and fill the reactor with argon Gas until the pressure inside the reactor rises to 1.6MPa, and at the same time raise the temperature inside the reactor to 140°C, and react at constant temperature and pressure for 80 minutes to obtain the reaction product.

[0059] Preparation of fermentation products:

[0060] Add 20% of the mass of the reaction product to the reaction kettle and add 0.5mol / L hydrochloric acid with a concentration of 0.5mol / L, mix and stir for 100min with a stirring device at a speed of 500r / min, and after stirring, add dropwise a 16% sodium hydroxide solution to adjust the pH value to neutral to prepare the mixture, by weight, 10 parts of the mixture, 2 parts of citric acid, 5 parts of pulverized cotton stalks...

technical field

[0001] The invention relates to a preparation method of an anti-aging and anti-ultraviolet sunshade net, belonging to the technical field of polymer material preparation. Background technique

[0002] As we all know, the growth of crops is inseparable from sunlight, which can make crops carry out photosynthesis and promote starch accumulation. However, in hot summer, if the sunlight is too strong, the transpiration of crops will be greater than photosynthesis, so that the starch consumption of crops will be too fast, the water will evaporate seriously, and even the crops will dry up and die.

[0003] Shade net, also known as shading net, is a new type of protective covering material for agriculture, fishery, animal husbandry, windproof, and soil cover. After covering in summer, it plays a role of blocking light, rain, moisturizing and cooling. There is also a certain effect of heat preservation and humidification after covering in winter and spring. It is ...

Examples

Embodiment 1

[0031] Preparation of the reaction product:

[0032]Put 500g of cotton in an oven, dry at 60°C for 2 hours to obtain a dry product, put the dry product and distilled water into the reactor at a mass ratio of 1:5, seal the reactor, and fill the reactor with argon until the pressure inside the reactor rises to 1.2MPa, and at the same time raise the temperature inside the reactor to 120°C, and react at constant temperature and pressure for 60 minutes to obtain a reaction product.

[0033] Preparation of fermentation products:

[0034] Add the hydrochloric acid of 16% concentration of reaction product mass and be 0.5mol / L in above-mentioned reactor, mix and stir 80min with the rotating speed of 400r / min with stirring device, after stirring, add dropwise the sodium hydroxide solution that mass fraction is 12% to adjust pH value to neutral to prepare the mixture, by weight, 8 parts of the mixture, 1 part of citric acid, 3 parts of pulverized cotton stalks and 15 parts of water are ...

Embodiment 2

[0044] Preparation of the reaction product:

[0045] Put 600g of cotton in an oven, dry at 65°C for 2 hours to obtain a dry product, put the dry product and distilled water into the reactor at a mass ratio of 1:5, seal the reactor, and fill the reactor with argon until the pressure in the reactor rises to 1.4MPa, and at the same time raise the temperature in the reactor to 130°C, and react at constant temperature and pressure for 70 minutes to obtain a reaction product.

[0046] Preparation of fermentation products:

[0047] Add the hydrochloric acid with the concentration of 18% of the reaction product mass to 0.5mol / L in the above reaction kettle, mix and stir with a stirring device at a speed of 450r / min for 90min, after stirring, add dropwise a mass fraction of 14% sodium hydroxide solution to adjust the pH value to neutral to prepare the mixture, by weight, 9 parts of the mixture, 1 part of citric acid, 4 parts of pulverized cotton stalks and 16 parts of water are droppe...

Embodiment 3

[0057] Preparation of the reaction product:

[0058] Put 700g of cotton in an oven and dry for 3 hours at a temperature of 70°C to obtain a dry product. Put the dry product and distilled water into the reactor at a mass ratio of 1:5, seal the reactor, and fill the reactor with argon Gas until the pressure inside the reactor rises to 1.6MPa, and at the same time raise the temperature inside the reactor to 140°C, and react at constant temperature and pressure for 80 minutes to obtain the reaction product.

[0059] Preparation of fermentation products:

[0060] Add 20% of the mass of the reaction product to the reaction kettle and add 0.5mol / L hydrochloric acid with a concentration of 0.5mol / L, mix and stir for 100min with a stirring device at a speed of 500r / min, and after stirring, add dropwise a 16% sodium hydroxide solution to adjust the pH value to neutral to prepare the mixture, by weight, 10 parts of the mixture, 2 parts of citric acid, 5 parts of pulverized cotton stalks...

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