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Preparation method and application of nylon 65 material with porous structure

A porous structure, nylon technology, applied in chemical instruments and methods, other chemical processes, water/sludge/sewage treatment, etc., to achieve the effects of improving economic benefits, convenient operation, and increasing effects

Active Publication Date: 2021-10-22
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of this, the nylon 65 material with a porous structure prepared by the present invention has high efficiency and pertinence, and the special molecular structure and porosity of the material itself can adsorb a large amount of dyes, and the dye removal rate can reach more than 90%, and At present, there is no report on the research on the adsorption of dye wastewater by nylon 65 material with porous structure

Method used

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  • Preparation method and application of nylon 65 material with porous structure
  • Preparation method and application of nylon 65 material with porous structure
  • Preparation method and application of nylon 65 material with porous structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The preparation steps of the nylon 65 material having a porous structure capable of absorbing dye wastewater in this embodiment are as follows:

[0039] Add 2g of nylon 65 sample prepared by melt polycondensation into 8g of formic acid solution to prepare a 20wt% nylon 65 formic acid solution, shake or stir at room temperature to fully dissolve the nylon 65 sample, and transfer the sample solution after fully dissolving Into a clean 30ml container prepared in advance, use a needle-hole syringe to continuously inject Na 2 CO 3 Aqueous solution (5wt% Na 2 CO 3 Aqueous solution) reacts with formic acid to prepare a nylon 65 material with a porous structure by foaming.

[0040] The prepared pore-shaped PA65 was ground and collected through an 80-mesh sieve for subsequent experiments.

[0041] The application of the nylon 65 material with a porous structure that can absorb dye wastewater in this embodiment is as follows:

[0042] Using a 50ml glass container, add the pr...

Embodiment 2

[0045] The preparation steps of the nylon 65 material having a porous structure capable of absorbing dye wastewater in this embodiment are as follows:

[0046]Add 4g of nylon 65 sample prepared by melt polycondensation to 8g of formic acid solution to prepare a 33wt% nylon 65 formic acid solution. At room temperature, shake or stir to fully dissolve the nylon 65 sample. After fully dissolving, transfer the sample solution Into a clean 30ml container prepared in advance, use a needle-hole syringe to continuously inject Na 2 CO 3 Aqueous solution (5wt% Na 2 CO 3 Aqueous solution) reacts with formic acid to prepare a nylon 65 material with a porous structure by foaming.

[0047] The prepared pore-shaped PA65 was ground and collected through an 80-mesh sieve for subsequent experiments.

[0048] The application of the nylon 65 material with a porous structure that can absorb dye wastewater in this embodiment is as follows:

[0049] Using a 50ml glass container, add the prepare...

Embodiment 3

[0052] The preparation steps of the nylon 65 material having a porous structure capable of absorbing dye wastewater in this embodiment are as follows:

[0053] Add 2g of nylon 65 sample prepared by melt polycondensation into 8g of formic acid solution to prepare a 20wt% nylon 65 formic acid solution, shake or stir at room temperature to fully dissolve the nylon 65 sample, and transfer the sample solution after fully dissolving Into a clean 30ml container prepared in advance, use a needle-hole syringe to continuously inject Na 2 CO 3 Aqueous solution (3wt% Na 2 CO 3 Aqueous solution) reacts with formic acid to prepare a nylon 65 material with a porous structure by foaming.

[0054] The prepared pore-shaped PA65 was ground and collected through an 80-mesh sieve for subsequent experiments.

[0055] The application of the nylon 65 material with a porous structure that can absorb dye wastewater in this embodiment is as follows:

[0056] Using a 50ml glass container, add the pr...

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Abstract

The invention discloses a preparation method and application of a nylon 65 material with a porous structure. The method comprises the following steps: after nylon 65 salt is synthesized by the patent CN108285532B, preparing a nylon 65 raw material through melt polymerization by the patent CN112920401A, mixing and dissolving anhydrous formic acid and the nylon 65 material, placing the fully dissolved nylon 65 formic acid solution in a container with a proper size, adding a sodium carbonate solution, and performing liquid foaming to obtain the nylon 65 material with the porous structure and excellent adsorption performance. The nylon 65 material with the porous structure prepared by the process has relatively strong adsorption performance by virtue of the special structure, and also has the characteristics of high temperature resistance, strong acid resistance, high efficiency in wastewater dye removal, reusability and the like. The nylon 65 adsorbing material can be used for adsorbing dye wastewater, and has the advantages of environmental protection, economy and high efficiency.

Description

technical field [0001] The invention belongs to the field of chemical materials, and in particular relates to a preparation method and application of a nylon 65 material with excellent performance in treating dye wastewater and having a porous structure. Background technique [0002] With the progress of society, people's life has become more colorful, and the dye industry has also been developed. my country has become the largest country in the printing and dyeing industry, with an annual dye output of 200,000-250,000 tons, but it is also accompanied by the generation of dye wastewater. Wastewater has various hazards such as complex composition, deep color, high toxicity, strong acid (alkali) and a large amount of negative ions. The main pollutants in wastewater dyes include high suspended solids, chlorides, sulfates and other soluble substances. Although there is a large amount of water in the wastewater, the residual dye in the drainage will still accumulate, so the conce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/28B01J20/30C02F1/28C02F101/30C02F101/34C02F101/38
CPCB01J20/265B01J20/28045B01J20/28059B01J20/28011C02F1/285C02F2101/308C02F2101/34C02F2101/38C02F2101/40Y02W10/37
Inventor 王训遒高智城张雷
Owner ZHENGZHOU UNIV
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