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Spherical honeycomb water retaining agent and preparation method thereof

A technology of water-retaining agent and honeycomb, which is applied in the direction of chemical instruments and methods, applications, organic fertilizers, etc. It can solve the problems of inability to keep water and store water well, the water-retaining agent absorbs water quickly, and the effect of drought resistance is not good, so as to save the cost of drought resistance , Increase water retention time, mechanical strength and high bulkiness

Pending Publication Date: 2018-10-26
ZHEJIANG TRIPLE WIN MEDICAL APPLIANCE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the commercially available water-retaining agents are granular. This water-retaining agent absorbs water quickly, but also loses water quickly. It cannot play a good role in water retention and storage. The effect of drought resistance is not good, and it is easier to degrade in the soil due to its large specific surface area. Short lifespan, increased drought resistance cost

Method used

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  • Spherical honeycomb water retaining agent and preparation method thereof
  • Spherical honeycomb water retaining agent and preparation method thereof
  • Spherical honeycomb water retaining agent and preparation method thereof

Examples

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preparation example Construction

[0021] The preparation method includes the following steps: S1, mixing sodium hydroxide and water according to the above percentages, and obtaining the mixture after the heat release is over; S2, stirring and mixing acrylic acid, acrylamide, crosslinking agent and initiator according to the above weight percentages to obtain another A mixture; S3, mixing the mixture obtained in step S1 and step S2 with another mixture to obtain the feed liquid to be reacted; S4, adjusting the density, viscosity and liquid level of the oil bath, and setting a certain reaction temperature, and then feeding The liquid enters the reaction container through the forming device; S5, the synthesis reaction is carried out; S6, the cleaning process is carried out; S7, the drying process is carried out, and the spherical honeycomb water retaining agent is obtained after drying.

[0022] The crosslinking agent is selected from the group consisting of ethylene glycol dimethacrylate, diethylene glycol dimeth...

Embodiment

[0030] Take the following raw materials in mass percentage: 38% of acrylic acid, 21% of sodium hydroxide, 6.5% of acrylamide, 2.5% of crosslinking agent, 0.8% of initiator and 31.2% of water, wherein the water is deionized water, and the crosslinking agent is ethylene glycol. Alcohol dimethacrylate, and the initiator is azobisisobutyronitrile.

[0031] First, mix sodium hydroxide and water according to the above percentage, and obtain the mixture after the exothermic end; S2, stir and mix acrylic acid, acrylamide, crosslinking agent, and initiator according to the above weight percentage to obtain another mixture; S3, mix the mixture with Mix another mixture to obtain the feed liquid to be reacted; S4, adjust the density of the oil bath to 0.9 g / mL, the viscosity to 400 cp, and the liquid level to 6 m, and set the reaction temperature to 80 ° C, and then the feed liquid enters the In the reaction vessel; S5, to carry out the synthesis reaction; S6, to carry out the cleaning pr...

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PUM

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Abstract

The invention relates to the field of water retaining agents, and specifically relates to a spherical honeycomb water retaining agent and a preparation method thereof. The spherical honeycomb water retaining agent is prepared from the following raw materials in percentage by weight: 30 to 50 percent of acrylic acid, 15 to 25 percent of sodium hydroxide, 1 to 10 percent of acrylamide, 0.1 to 5 percent of cross-linking agent, 0.1 to 5 percent of initiator, 0.5 to 2 percent of assistant and the balance of water. The preparation method of the spherical honeycomb water retaining agent comprises thefollowing steps: S1, mixing sodium hydroxide with the water in percentage, and releasing heat, thus obtaining a mixture; S2, stirring and mixing acrylic acid, acrylamide, the cross-linking agent andthe initiator in percentage by weight, thus obtaining the other mixture; S3, mixing the mixture with the other mixture, thus obtaining to-be-reacted feed liquid; S4, enabling the to-be-reacted feed liquid to enter a reaction container; S5, synthesizing; S6, cleaning; S7, drying, thus obtaining the spherical honeycomb water retaining agent. Compared with the prior art, the water absorption speed isrelatively quickened by a honeycomb structure of the spherical honeycomb water retaining agent, balance is achieved, and the drought control cost is reduced.

Description

technical field [0001] The invention relates to the field of water-retaining agents, in particular to a spherical honeycomb water-retaining agent and a preparation method thereof. Background technique [0002] The water-retaining agent is a polymer water-absorbing resin, which can quickly absorb and lock rainwater or irrigation water in the soil without seepage, thereby ensuring sufficient water in the rhizosphere and slowly releasing it for plants to use. Its unique water absorption, water storage, and water retention properties play a decisive role in improving the ecological environment and windbreak and sand fixation projects. Water-retaining agents are widely used in land desertification control, agricultural and forestry crop planting, landscaping and other fields. Most of the commercially available water-retaining agents are granular. This water-retaining agent absorbs water quickly, but also loses water quickly. It cannot play a good role in water retention and stor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/16C09K17/20C08F220/06C08F220/56C08F222/14C09K101/00
CPCC09K17/16C09K17/20C08F220/06C09K2101/00C08F220/56C08F222/102
Inventor 范立涛李艳
Owner ZHEJIANG TRIPLE WIN MEDICAL APPLIANCE
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