Permeability/retentivity enhancing material containing humic acid-carboxymethyl cellulose and preparation method thereof

Abstract

The invention discloses a permeability/retentivity enhancing material containing humic acid-carboxymethyl cellulose and a preparation method thereof. The preparation method comprises the following steps: proportionally weighing raw materials, sequentially mixing humic acid-acrylamide and carboxymethyl cellulose-crosslinking agent-initiator, and making an inert gas (nitrogen) environment in a reaction kettle to prepare for reaction; and sufficiently reacting the prepared mixture at constant temperature of 45-65 DEG C for 2-6 hours, taking out, washing, drying and granulating. The permeability/retentivity enhancing material containing humic acid-carboxymethyl cellulose not only can release retained moisture after sufficiently swelling, but also can provide ultra-water-absorptive resin which can provide organic substances required by soil; and the permeability/retentivity enhancing material containing humic acid-carboxymethyl cellulose can be used for plant moisture retention and drought control in agriculture, forestry and horticulture as well as preparation of antiseepage moisture retention membranes, satisfy the moisture demands for seedling emergence and early growth of crops, reduce the evaporation, improve the soil structure, increase the content of organic nutrient (humic acid) in soil by 0.3-1.3%, and enhance the moisture retentivity by 250-480 times as compared with the original soil.

Description

technical field [0001] The invention discloses a material for increasing penetration and expanding storage containing humic acid-carboxymethyl cellulose, and also provides a preparation method for the material for increasing penetration and expanding storage, belonging to the technical fields of water retention of agricultural crops and soil seepage prevention and water retention. Background technique [0002] In the field of modern agricultural technology, there are many water-retaining materials for crops, such as: superabsorbent resin is a kind of water-swellable and three-dimensional network structure that contains strong hydrophilic groups such as hydroxyl and carboxyl groups and has a certain degree of crosslinking. Polymer material is a new type of water-absorbing material that has developed rapidly in recent years; it is insoluble in water and organic solvents, swells after absorbing water, and forms a hydrogel, which has certain strength and water retention. Compare...

AI Technical Summary

Problems solved by technology

[0003] The invention discloses a material containing humic acid-carboxymethyl cellulose for increasing penetration and storage, which solves the problem of releasing water after the superabsorbent resin swells in the farmland, and can also provide organic nutrients for the farmland