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Colorized high polymer flower soil and preparation method thereof

A polymer and flower soil technology, applied in the field of flower soil, can solve problems such as water absorption performance needs to be improved, equipment utilization rate reduction, environmental hazards, etc., and achieve the effects of color fastness that is not easy to migrate, strong commercial value, and high color fastness

Active Publication Date: 2014-06-18
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Suspension polymerization and emulsion polymerization introduce dispersants and emulsifiers into the system. The procedures in the post-processing of the product are complicated and cannot be completely removed, which may easily cause impurities to remain. This not only reduces the utilization rate of equipment, but also causes potential harm to the environment. , and the aqueous solution polymerization process is simple, which not only reduces the cost, but also can be suitable for mass industrial production by optimizing the process. The copolymerization reaction of amide aqueous solution produces a water-retaining agent with no pollution and good water retention performance, but its water absorption ratio is only about 200 times, and the water absorption performance needs to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A colored polymer flower soil and a preparation method thereof. The method is to take 3 parts of acrylic acid in an ice-bath environment, add them to a reaction kettle with a stirrer, adjust with NaOH solution, and control the degree of neutralization at 60%. After the stirring is complete, slowly add 4 parts of acrylamide, continue to stir, and after fully dissolving, add 0.2% of potassium persulfate, 0.15% of N-N'methylenebisacrylamide and 1.1% of non-water-soluble Add permanent disazo pigments (such as Pigment Yellow 93) until the solution is completely mixed. Move the solution to a high-temperature reaction box, keep warm at 55°C, 60°C, and 70°C for 1h, 2.5h, and 1.5h, respectively, and take out the product. After the reaction product is cooled, cut, dry, pulverize, and sieve Processing, the obtained colored polymer flower soil. The water absorption rate is 753gg -1 , the salt absorption rate is 87gg -1 , keep warm for 12 hours at 80°C, the water retention rate i...

Embodiment 2

[0021] A colored polymer flower soil and a preparation method thereof, the method is in an ice-bath environment, taking 3 parts of acrylic acid into a reaction kettle with a stirrer, adjusting with NaOH solution, controlling the degree of neutralization at 65%, and stirring After completion, slowly add 4 parts of acrylamide, continue to stir, and after fully dissolving, add 0.25% of potassium persulfate, 0.3% of N-N'methylenebisacrylamide and 1.5% of non-water-soluble For disazo pigments (such as Pigment Yellow 93), stir until the solution is fully mixed. Move the solution to a high-temperature reaction box, keep warm at 55°C, 60°C, and 70°C for 1.5h, 2h, and 1h, respectively, and take out the product. After the reaction product is cooled, cut, dry, pulverize, and sieve. The obtained colored polymer flower soil. The water absorption rate is 1168gg -1 , the salt absorption rate is 96gg -1 , keep warm for 12 hours at 80°C, the water retention rate is 68%, and the flower soil ...

Embodiment 3

[0023] A colored polymer flower soil and a preparation method thereof, the method is in an ice-bath environment, taking 3 parts of acrylic acid and adding it to a reaction kettle with a stirrer, adjusting with NaOH solution, controlling the degree of neutralization at 70%, and stirring After completion, slowly add 4 parts of acrylamide, keep stirring, and after fully dissolving, add 0.3% potassium persulfate, 0.45% N-N'methylenebisacrylamide and 2.1% non-water-soluble For disazo pigments (such as Pigment Yellow 93), stir until the solution is fully mixed. Move the solution to a high-temperature reaction box, keep warm at 55°C, 60°C, and 70°C for 1.5h, 2h, and 2h, respectively, and take out the product. After the reaction product is cooled, cut, dry, pulverize, and sieve. The obtained colored polymer flower soil. Water absorption rate is 820gg -1 , the salt absorption rate is 75gg -1 , keep warm for 12 hours at 80°C, the water retention rate is 65%, and the flower soil will ...

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Abstract

The invention provides a colorized high polymer flower soil and a preparation method thereof, and belongs to the technical field of the flower soil. The colorized high polymer flower soil comprises the following major ingredients: 3 parts by weight of acrylic acid and 4 parts of acrylamide, both used as monomers, an initiator potassium peroxodisulfate accounting for 0.2-0.5% of the total weight of the monomers, a cross-linking agent N,N'methylene bisacrylamide accounting for 0.15-0.5% of the total weight of the monomers and a colorant accounting for 1-3% of the total weight of the monomers. The technical scheme adopted is as follows: a sodium hydroxide solution is added to a mechanical stirring reaction kettle, and after being dissolved thoroughly, sodium hydroxide is slowly neutralized by using the acrylic acid under stirring, and then acrylamide, the cross-linking agent, the initiator and the colorant are added independently, and all the mixtures are evenly mixed together and then polymerized under closed and static conditions at a temperature ranging from 55 to 70 DEG C. The polymerized solid product is subjected to treatments such as cutting, drying and crushing, and then the final product is obtained. The water absorbent rate is 800-1100 times.

Description

technical field [0001] The invention relates to a colored polymer flower soil prepared by an aqueous solution polymerization method and a preparation method thereof, belonging to the technical field of flower soil. Background technique [0002] Nowadays, with the continuous development of cultivation technology, soilless cultivation or soil substitute cultivation technology is quietly emerging in the flower cultivation industry. Most of the colored soils currently on the market are directly synthesized by sodium alginate and anhydrous calcium chloride, and some pigments and preservatives are added to achieve the desired effect in the market. Although it has the functions of decoration and ornamental, and can avoid the damage of microorganisms and even pests in the soil to the plant to a certain extent, but due to its own lack of nutrition and lack of air permeability, the plant root system can only perform anaerobic respiration. Plants in this state are prone to mildew and ...

Claims

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Application Information

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IPC IPC(8): C08F220/56C08F220/06C08F2/10C08F2/44C08K5/23
Inventor 索红莉王鼎元苏健陈立佳田辉郭艾东张腾司乃国刘君丽
Owner BEIJING UNIV OF TECH