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Preparation method of white carbon black-biogel composite water-absorbing material

A technology of water-absorbing material and biological glue, applied in the field of polymer materials, can solve problems such as poor salt absorption, and achieve the effect of improving salt-absorbing performance

Active Publication Date: 2021-01-12
NORTHWEST NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Based on the problem of poor salt absorption of existing inorganic-biological glue composite water-absorbing materials, the purpose of the present invention is to provide a method for preparing inorganic-biological glue composite water-absorbing materials to improve the salt-absorbing performance of water-absorbing materials

Method used

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  • Preparation method of white carbon black-biogel composite water-absorbing material
  • Preparation method of white carbon black-biogel composite water-absorbing material
  • Preparation method of white carbon black-biogel composite water-absorbing material

Examples

Experimental program
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Effect test

Embodiment

[0053] 1 Preparation of oil shale semi-coke-based silica

[0054] 1.1 Take industrial waste oil shale semi-coke and put it into a pulverizer for 3-5 minutes, repeat 3-5 times, and then sieve it with a 200-mesh sieve to obtain oil shale semi-coke with a particle size of less than 200 mesh.

[0055] 1.2 Put the sieved oil shale semi-coke into a tube furnace for calcination, and calcine at 800°C for 2 to 3 hours.

[0056] 1.3 Put 10g of calcined oil shale semi-coke into a 250mL beaker, pour 50mL each of 10mol / L concentrated sulfuric acid and 10mol / L concentrated nitric acid, put them in an oil bath, and rotate and stir at 90°C for 10~12h.

[0057] 1.4 Suction filter the acid-leached oil shale semi-coke powder, then wash 5-8 times, put it in a blast drying oven at 60°C for 20-24 hours, and prepare oil shale semi-coke-based silica Stand by.

[0058] 2 Preparation of composite superabsorbent resin

[0059] Take 0.8g tara gum and put it into 30ml water, stir and disperse at 65~75℃...

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Abstract

The invention discloses a preparation method of a water-absorbing material, which comprises the step of carrying out polymerization reaction on biogel and an acrylic monomer to generate the water-absorbing material, and is characterized in that a certain amount of white carbon black is added into the polymerization reaction. Compared with the prior art that oil shale semicoke, sepiolite, loess andthe like are used as inorganic components, the white carbon black is used as the inorganic component, the salt absorption performance of the water absorption material can be remarkably improved, thewater absorption rate of a 0.9% sodium chloride solution reaches 80 g / g or above, and the water absorption material can be widely applied to the fields of water-saving agriculture, ecological restoration and the like.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a preparation method of an inorganic-biological glue composite water-absorbing material. Background technique [0002] The lack of fresh water resources is one of the most serious problems in the world today. It will threaten the basic living conditions of human beings, restrict the quality of human life, and cause great harm to human survival and development. The status quo of China's water resources is not optimistic, especially in northern China. The amount of water resources and arable land in arid regions account for 17% and 64% of the country, respectively, and only 1 / 4 and 1 / 9 of the southern regions. At the same time, the limited water resources have not been effectively utilized, and most of the water is lost by evaporation from the soil surface. In the semi-arid regions of northwest China, its amount generally accounts for 1 / 4~1 / 2 of the total water consump...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F251/00C08F220/06C08F222/38C08F2/44C08K7/26
CPCC08F251/00C08F2/44C08K7/26C08F220/06C08F222/385
Inventor 马国富韩洪峰李小侠李璐彭辉张哲雷自强
Owner NORTHWEST NORMAL UNIVERSITY
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