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Colored crystal water-absorbent resin for soilless culture and preparing method thereof

A technology of soilless cultivation and water-absorbing resin, which is applied in the direction of botany equipment and methods, application, culture medium, etc., can solve the problems of polluted culture medium, seepage, and fading of crystal mud, and achieves the advantages of simple preparation process and long service life Effect

Inactive Publication Date: 2019-05-24
安徽清彩科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after repeated washing and use, the crystal mud will fade, and the color will leak out and pollute the culture medium.
Especially after being discarded, the leakage of color pigments is more harmful to the environment

Method used

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  • Colored crystal water-absorbent resin for soilless culture and preparing method thereof
  • Colored crystal water-absorbent resin for soilless culture and preparing method thereof
  • Colored crystal water-absorbent resin for soilless culture and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add 100g of acrylic acid and 30mL of water into the reactor and stir. After completely dissolving, slowly add 40mL of 40% sodium hydroxide aqueous solution dropwise while stirring. The pH is about 6.5 and the degree of neutralization is 70%. Control the reaction so that the solution system When the temperature is lower than 35°C, add 100g of acrylamide, 3g of dye monomer, 0.4g of cross-linking agent, 0.3g of initiator and 3mL of fertilizer aqueous solution in sequence, mix well, and seal and statically polymerize at 55°C to form a gel , broken into cubes of about 2mm, and dried to obtain the product.

Embodiment 2

[0025] Add 90g of acrylic acid and 30mL of water into the reactor and stir. After completely dissolving, slowly add 60mL of 40% sodium hydroxide aqueous solution dropwise while stirring. The pH is about 7.5, and the degree of neutralization is 100%. Control the reaction so that the solution system When the temperature is lower than 35°C, add 100g of acrylamide, 2g of dye monomer, 0.3g of cross-linking agent, 0.25g of initiator and 2mL of fertilizer aqueous solution in sequence, after mixing evenly, seal and statically polymerize at 45°C to form a gel , broken into cubes of about 2mm, and dried to obtain the product.

Embodiment 3

[0027] Add 100g of acrylic acid and 30mL of water into the reactor and stir. After completely dissolving, slowly add 50mL of 40% sodium hydroxide aqueous solution dropwise while stirring. The pH is about 7 and the degree of neutralization is 80%. Control the reaction so that the solution system When the temperature is lower than 35°C, add 100g of acrylamide, 2.5g of dye monomer, 0.2g of cross-linking agent, 0.2g of initiator and 3mL of fertilizer aqueous solution in sequence, after mixing evenly, seal and static polymerization at 50°C to form a gel Glue, broken into squares of about 2 mm, and dried to obtain the product.

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Abstract

The invention discloses colored crystal water-absorbent resin for soilless culture and a preparing method thereof, and relates to the field of fine chemical engineering. The colored crystal water-absorbent resin is prepared by polymerizing, by weight, 100 parts of acrylamide, 70-100 parts of acrylic acid, 30-60 parts of a sodium hydroxide solution, 1-3 parts of a dyestuff monomer, 0.2-0.4 part ofa cross-linking agent, 1-3 parts of a nutrient solution and 0.06-0.3 part of an initiator. The prepared colored crystal water-absorbent resin solves the problems of color fading and color bleeding existing in the prior art; meanwhile, the colored crystal water-absorbent resin is simple in preparing process and long in service life, has nutrients required for plants, is endowed with the function ofslow release of fertilizer, color bleeding does not occur after the resin is discarded, and thus the environment cannot be polluted accordingly.

Description

technical field [0001] The invention belongs to the technical field of fine chemicals, and in particular relates to a colored crystal water-absorbing resin for soilless cultivation and a preparation method thereof. Background technique [0002] As decorations of modern urban families, potted plants are more and more valued by more and more people. Not only plants and flower pots with different shapes are decorations, but in order to achieve aesthetic effect, colored sandstones for decoration are often placed on the surface of the black cultivation soil, but it is troublesome and messy to turn the soil. The application of soilless cultivation technology makes potted plants more modern, and crystal mud is often used as a soil substitute. Crystal mud is usually composed of water-absorbing resin, preservatives, and various color pigment powders. [0003] Water-absorbing resin (Super Absorbent Polymer, SAP) is a new type of functional polymer material. It has a high water abso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/56C08F220/06C08F220/60C08F220/36C08F222/38A01G24/35
Inventor 项羽陈军李怡霞杨文东吴祥松李军配
Owner 安徽清彩科技有限公司
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