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Multifunctional soil and water conserving agent and its compounding process

A soil and water conservation agent, multi-functional technology, applied in the direction of soil conditioning materials, organic fertilizers, fertilizer mixtures, etc., can solve ecological damage, environmental pollution, human and animal safety threats, etc., to increase water absorption, avoid secondary pollution, The effect of maintaining micro gas phase voids

Inactive Publication Date: 2002-01-23
北京罗萌创业生物技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the resin adopts monomer copolymerization and cross-linking process in the production process, water-soluble residual monomers such as acrylamide and its derivatives are highly toxic, small molecular weight polymers and linear polymerization without T-shaped network structure The substance is also water-soluble; in addition, under the long-term action of sunlight, water and various substances in the soil, the resin will inevitably decompose to a certain extent and dissolve in water. All these processes may pose a threat to the safety of humans and animals. and may cause environmental pollution and ecological damage

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0059] The multifunctional soil and water conservation agent is formed by multi-component copolymerization of dimethyl diallyl ammonium chloride, acrylamide and acrylic acid as monomers. It has the characteristics of both anion and cationic groups. The shape of this product is granular, soluble in water, insoluble in most organic solvents, and is a synthetic high molecular weight polymer. The molecular weight is generally above 10 million, and some even exceed 20 million. Therefore, their dissolution methods are very different from those of inorganic small molecule iron salts and aluminum salts. The following principles should be followed when dissolving:

[0060] Powdered polymer cannot be used directly, it should be dissolved in water before use, and then used after dilution according to the dosage required for production.

[0061] The water to dissolve the polymer should be clean water (such as tap water), strong alkaline or acidic water is not suitable for dissolving th...

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Abstract

The present invention relates to a multifunctional soil and water conserving agent and its preparation. A superhigh molecular weight absorptive resin prepared through crosslinking and grafting is altered in its chemical bond strength and polymer network structure strength to maintain proper hydrophilic group and crosslinking degree, and proper amount of cationic groups are introduced to the molecular chain to form the novel multifunctional soil and water conserving agent capable of inhibiting the hydration, dispersion and migration of soil. The multifunctional soil and water conserving agent has several functions of absorbing water, maintaining water, conserving soil, keeping fertilizer, etc.

Description

(1) Technical field [0001] The invention relates to a multi-functional soil and water conservation agent used in the fields of agriculture, forestry, water conservancy and environmental protection by polymer fine chemical technology and its preparation process. The superabsorbent resin can enhance the network structure strength of the polymer by changing the bond strength of the cross-linking link, maintain the appropriate hydrophilic group content and cross-linking degree, and introduce an appropriate amount of cationic groups on the molecular chain to form a superabsorbent resin. A new multifunctional soil and water conservation agent that can inhibit soil hydration, dispersion and migration. [0002] Since the polyelectrolyte resin of the multifunctional soil and water conservation agent has a long durability, the demand is reduced, and the hydration, expansion and dispersion of the soil can be inhibited, which can not only absorb water, retain water and withstand drought, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40
Inventor 罗萌
Owner 北京罗萌创业生物技术开发有限公司
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