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Long-acting anti-fog dripping coating liquid for agricultural plastic greenhouse film and preparation method of long-acting anti-fog dripping coating liquid

A technology of anti-fog dripping and coating liquid, applied in the direction of coating, alkali metal silicate coating, etc., can solve the problems of short duration of anti-fog dripping, high cost, poor transparency, etc., and achieve good anti-fog And dripping, long-lasting effect

Active Publication Date: 2021-06-15
山东齐舜新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the purpose of the patent of the present invention is to provide a long-acting agricultural plastic shed film anti-fog and dripping coating solution to improve the coating of the prior art The coating liquid of the present invention has the disadvantages of poor adhesion, poor transparency, short duration of anti-fog dripping, poor wear resistance, and high cost. The coating liquid of the present invention has surpassed the products on the market; ability to extend service life

Method used

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  • Long-acting anti-fog dripping coating liquid for agricultural plastic greenhouse film and preparation method of long-acting anti-fog dripping coating liquid
  • Long-acting anti-fog dripping coating liquid for agricultural plastic greenhouse film and preparation method of long-acting anti-fog dripping coating liquid
  • Long-acting anti-fog dripping coating liquid for agricultural plastic greenhouse film and preparation method of long-acting anti-fog dripping coating liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1. Preparation of latex:

[0026] ①. Add 500ml of OP-10 emulsifier solution (3%) into the beaker. Then slowly add 34 g of polyvinyl alcohol under stirring, and raise the temperature to 80° C. until the polyvinyl alcohol is completely dissolved (dissolving time is about 1 hour).

[0027] ② Stop heating, cool down to about 65°C, and add 8 grams of butyl acrylate, 8 grams of perfluoroalkyl acrylate and 20 grams of hydroxyethyl methacrylate into the emulsion at one time, heat to 75-85 degrees, and stir 10 minutes.

[0028] ③. Slowly add 40ml of 1.2% ammonium persulfate solution into the reaction system drop by drop (about 15 minutes), and maintain the reaction temperature at 80-85°C until white latex appears.

[0029] 2. Preparation of coating solution

[0030] Take 10 grams of magnesium silicate, 85 ml of latex liquid and 5 grams of coconut oleic acid diethanolamide, add it, heat to 60 degrees, and stir for 2-3 hours to obtain the required coating solution. When using,...

Embodiment 2

[0032] 1. Preparation of latex

[0033] ①. Add 500ml of OP-10 emulsifier solution (3%) into the beaker. Then slowly add 34 g of polyvinyl alcohol under stirring, and raise the temperature to 80° C. until the polyvinyl alcohol is completely dissolved (dissolving time is about 1 hour).

[0034] ② Stop heating, cool down to about 65°C, and add 8 grams of styrene, 34 grams of perfluoroalkyl acrylate, 8 grams of butyl acrylate and 8 grams of styrene monomer at one time and stir, then restart heating to 80-85 °C (stir for about 15 minutes).

[0035] ③. Slowly add 40ml of 1.5 ammonium persulfate solution into the reaction system drop by drop (about 15 minutes), and maintain the reaction temperature at 80-85°C until white latex appears.

[0036] 2. Preparation of aluminum silicate:

[0037] Dissolve 12 grams of sodium silicate in 500 ml of water, and dissolve 13.6 grams of aluminum sulfate in 500 ml of water. Gradually add aluminum sulfate to the sodium silicate solution with stir...

Embodiment 3

[0041] 1. Preparation of latex

[0042] ①. Add 500ml of OP-10 emulsifier solution (3%) into the beaker. Slowly add 34 g of polyvinyl alcohol under stirring, and raise the temperature to 80° C. until the polyvinyl alcohol is completely dissolved (dissolving time is about 1 hour).

[0043] ② Stop heating, cool down to about 65°C, add 8 grams of methyl methacrylate, 8 grams of perfluoroalkyl acrylate and 30 grams of hydroxyethyl methacrylate monomer at one time and stir, and restart heating to 80-85 °C (stir for about 15 minutes).

[0044] ③. Slowly add 40ml of 1.5% ammonium persulfate solution into the reaction system drop by drop (about 15 minutes), and maintain the reaction temperature at 80-85°C until white latex appears.

[0045] 2. Preparation of coating solution

[0046] Mix 20 grams of lithium silicate, 85 ml of latex liquid and 5 grams of coconut oleic acid diethanolamide, heat to 60 degrees, and stir for 2-3 hours. That is, the desired coating solution is obtained. ...

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Abstract

The invention discloses long-acting transparent anti-fog dripping coating liquid for an agricultural plastic greenhouse film and a preparation method of the long-acting transparent anti-fog dripping coating liquid. The transparent long-acting anti-fog dripping coating liquid for the agricultural plastic greenhouse film comprises 10%-20% of silicate, 1%-10% of a modified latex binder, 1%-10% of coconut diethanolamide and 60%-88% of water. The silicate is a compound of metal silicate, and the modified latex is a modified acrylate series emulsion. The externally-smeared anti-fog dripping coating for the agricultural plastic greenhouse film has good anti-fog and dripping dual effects, the initial dripping time and the ten dripping time are both superior to national standard values, and the externally-smeared anti-fog dripping coating for the agricultural plastic greenhouse film has the advantages of long anti-fog dripping lasting time, biodegradability, no pollution to the environment, capability of enabling the greenhouse film to have self-repairing performance and the like.

Description

technical field [0001] The invention relates to an anti-fog and drip coating liquid and a preparation method thereof, in particular to a long-acting anti-fog and drip coating liquid for agricultural plastic shed films. Background technique [0002] Agricultural plastic shed film is generally polyolefin film, and its surface is hydrophobic. When the external temperature is lower than the water vapor dew point, saturated water vapor will condense into water droplets on the inner surface of the shed film and atomize to form white reflective droplets, resulting in transparent The light rate decreases, which affects the photosynthesis and normal growth of plants. What's more serious is that the condensed liquid droplets on the inner surface of the greenhouse film will drip on the crops, causing the crops to rot or breed germs, reducing crop yield and quality. Therefore, the anti-fog and dripping technology of agricultural plastic shed film has become an important technology in m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/04C09D1/00C09D7/63C09D7/65
CPCC09D1/04C09D1/00C09D7/63C09D7/65Y02A40/25
Inventor 崔明斌左磊纪俊羽
Owner 山东齐舜新材料有限公司
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