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Preparation method of high-dispersion plant fiber absorption material

A technology of plant fibers and absorbent materials, which is applied in the field of preparation of highly dispersed plant fiber absorbent materials, can solve problems affecting the performance of hygienic absorbent materials, disordered and random stacking of fibers, and fiber dough effect, etc., to improve surface structure performance and improve Dispersion performance, long life effect

Inactive Publication Date: 2019-06-14
周德锋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is that the existing plant absorbent materials are made by dispersing superabsorbent resin particles in wood pulp fiber cotton and hot pressing at high temperature, so that the fibers are disorderly and randomly stacked together and are too fluffy and large To a certain extent, it affects the performance of hygienic absorbent materials. The main problems are slow liquid absorption rate, low wet strength, etc., and the fiber will produce dough effect after absorbing liquid. A preparation method of highly dispersible plant fiber absorbent material is provided.

Method used

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  • Preparation method of high-dispersion plant fiber absorption material

Examples

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Effect test

example 1

[0031] Take fresh camphor leaves, wash and dry them, crush them with airflow and use liquid nitrogen to quick-freeze them, collect the freeze-dried particles and place them in a tissue grinder to grind through a 200-mesh sieve. After thawing for 2 hours, the extracted particles are obtained; then the mass ratio is 1 : 25. Add the extracted particles to the 15% ethanol solution, stir and mix and soak for 10 hours, then centrifuge at 4500r / min for 15min, take the supernatant and place it at 40℃ to rotate and evaporate to the volume of the supernatant 1 / 5, get the rotary steaming liquid, and then prepare the camphor leaf essential oil; in parts by weight, respectively weigh 45 parts of camphor leaf essential oil, 10 parts of 85% ethanol solution and 25 parts of 30% by weight. The sulfuric acid solution was placed in a beaker, stirred and mixed, and kept at 45°C for 6 hours. After cooling to room temperature, the reaction solution was obtained and placed in a separatory funnel. Afte...

example 2

[0033] Take fresh camphor leaves, wash and dry them, pulverize with airflow and quickly freeze them with liquid nitrogen, collect the freeze-dried particles and place them in a tissue grinder to grind through a 200-mesh sieve. After thawing for 3 hours, the extracted particles are obtained; then the mass ratio is 1 : 25. Add the extracted particles to a 15% ethanol solution, stir and mix and soak for 11 hours, then centrifuge at 4750r / min for 17 minutes, take the supernatant and place it at 42°C by rotary evaporation to the volume of the supernatant 1 / 5, the rotary steaming liquid is obtained, and the described camphor leaf essential oil can be prepared; in parts by weight, respectively weigh 47 parts of camphor leaf essential oil, 12 parts of 85% ethanol solution and 27 parts of 30% by weight. The sulfuric acid solution was placed in a beaker, stirred and mixed, and kept at 47°C for 7h to react with heat. After standing and cooling to room temperature, the reaction solution was...

example 3

[0035] Take fresh camphor leaves, wash and dry them, pulverize with airflow and quickly freeze them with liquid nitrogen, collect the freeze-dried particles and place them in a tissue grinder to grind through a 200-mesh sieve. After thawing for 3 hours, the extracted particles are obtained; then the mass ratio is 1 : 25. Add the extracted particles to the 15% ethanol solution, stir and mix and soak for 12 hours, then centrifuge at 5000r / min for 20min, take the supernatant and place it at 45℃ to rotate and evaporate to the volume of the supernatant 1 / 5, to obtain the rotary steaming liquid, the said camphor leaf essential oil can be prepared; in parts by weight, respectively weigh 50 parts of camphor leaf essential oil, 15 parts of 85% ethanol solution and 30 parts of 30% by weight. The sulfuric acid solution was placed in a beaker, stirred and mixed and placed at 50°C for 8 hours to keep warm, and allowed to stand to cool to room temperature. The reaction solution was obtained a...

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Abstract

The invention relates to a preparation method of a high-dispersion plant fiber absorption material, and belongs to the technical field of preparation of porous materials. According to the method, thesurface tension of slurry is reduced, the wettability is improved, the friction is reduced, the collision probability is reduced, fiber surface charges are increased, the repulsive force is generated,flocculation is reduced, the high-dispersion plant fiber absorption material is adsorbed to the surface of suspended fiber, a water sliding film is formed, fibers are not easily entangled, meanwhile,the fibers have a small amount of negative charges, due to the polarization of water molecules, the negative charges on the surface of the fibers generate an electrostatic effect, so that a polyvalent electrolyte is increased, the negative charges are increased, the repulsive force among the fibers is increased, a stable suspension liquid is formed, the viscosity of the fiber slurry is increased,a thin lubricating film is attached to the surface of the fibers, the fibers are prevented from tangling when in slipping, meanwhile, the movement freedom degree of the fibers in water is also limited, the fibers are not in contact with each other, the flocculation among the fibers is reduced, the structure of the fiber forming network is facilitated, and the absorbing material with excellent dispersing performance is prepared.

Description

Technical field [0001] The invention relates to a method for preparing a highly dispersible plant fiber absorbent material, and belongs to the technical field of porous material preparation. Background technique [0002] With traditional foam plastics becoming increasingly prominent in today's environmental protection issues, research on plant fiber porous materials at home and abroad has become a hot spot. Because porous materials have a porous structure, and also have the advantages of high porosity, large specific surface area, light weight, and strong adsorption, they have been widely studied in many fields. It can be divided into three types according to the aperture: [0003] 1) Microporous material: the pore diameter is less than 2nm; [0004] 2) 2) Mesoporous materials: the pore diameter is 2nm~50nm; [0005] 3) 3) Macroporous material: the pore diameter is greater than 50nm. [0006] Fibrous porous materials are macroporous materials. Because of their low price, low density,...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L91/00C08L71/02C08L1/28
Inventor 周德锋
Owner 周德锋
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