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A kind of mesh cloth for heavy metal treatment and preparation method thereof

A heavy metal and mesh technology, applied in the field of textile production, can solve the problems of multiple processes, complicated spinning and weaving process, etc., and achieve the effects of controllable preparation process, improving sewage treatment performance, and avoiding migration

Active Publication Date: 2018-04-13
HENGYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the fiber materials used for heavy metal adsorption are mainly materials containing multifunctional groups such as hydroxyl and amino groups, such as cellulose, polyacrylonitrile, and polyimide; and for traditional fiber materials, due to their preparation process through Spinning and then weaving to prepare membranes or fabrics can be applied to the treatment of heavy metals in water bodies. The spinning and weaving process is complicated and there are many processes

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • A kind of mesh cloth for heavy metal treatment and preparation method thereof
  • A kind of mesh cloth for heavy metal treatment and preparation method thereof
  • A kind of mesh cloth for heavy metal treatment and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A mesh for heavy metal treatment, which is obtained by three-dimensional weaving by a warp knitting machine, the thickness of the mesh is 5 to 200 mm, and the water permeability of the mesh is 1800 to 3000 mm·s -1 , Bursting strength is 2000~4500N.

[0047] A preparation method of mesh cloth for heavy metal treatment, the specific steps are:

[0048] (a) Preparation of hyperbranched dendrimer

[0049] The chemical structure of hyperbranched dendrimer is:

[0050]

[0051] The specific steps of the preparation method of hyperbranched dendrimer are as follows:

[0052] (1) Preparation of star-terminal double bond dendrimer

[0053] Using pentaerythritol tetraacrylate and melamine as raw materials, low-molecular-weight alcohols as solvents, in a reaction device with stirring and condensing reflux, under the protection of nitrogen, the temperature of the reaction system is controlled to -10~5℃, and the melamine alcohol The solution is divided into three equal parts, and then the alco...

Embodiment 2

[0076] A mesh for heavy metal treatment, which is obtained by three-dimensional weaving by a warp knitting machine, the thickness of the mesh is 5 to 200 mm, and the water permeability of the mesh is 1800 to 3000 mm·s -1 , Bursting strength is 2000~4500N.

[0077] A preparation method of mesh cloth for heavy metal treatment, the specific steps are:

[0078] (a) Preparation of hyperbranched dendrimer

[0079] The chemical structure of hyperbranched dendrimer is:

[0080]

[0081] The specific steps of the preparation method of hyperbranched dendrimer are as follows:

[0082] (1) Preparation of star-terminal double bond dendrimer

[0083] Using pentaerythritol tetraacrylate and melamine as raw materials, low-molecular-weight alcohols as solvents, in a reaction device with stirring and condensing reflux, under the protection of nitrogen, the temperature of the reaction system is controlled to -10~5℃, and the melamine alcohol The solution is divided into three equal parts, and then the alco...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a mesh used for heavy metal treatment and a making method thereof. The mesh is woven through a warp knitting machine in a three-dimensional mode, the thickness of the mesh is 5 mm-200 mm, the water permeating amount of the mesh is 1800 mm.s-1-3000 mm.s-1, and the bursting strength is 2000 N-4500 N; production is performed by the adoption of a Germany imported KARL MAYER RD6DPLM type two-needle bar warp knitting machine, and through the three steps of warping, weaving and finishing, the needed mesh used for heavy metal treatment is obtained. A hyperbranched polymer containing 30 phosphonic acid end groups is adopted as a modifying agent, through the weaving method of the mesh, the mesh for sewage treatment is obtained, and the mesh has excellent adsorbing performance, is high in sewage treatment efficiency and can be recycled.

Description

Technical field [0001] The invention relates to the technical field of textile production, in particular to a mesh cloth for heavy metal treatment and a preparation method thereof. Background technique [0002] With the continuous progress of society and the rapid development of industry, pollution caused by the discharge of heavy metal wastewater poses a serious threat to the ecosystem and public health. Heavy metals in water bodies have become one of the most serious environmental problems in my country. The governance of the company is highly valued by scientific researchers at home and abroad. In order to more effectively prevent heavy metal pollution in water bodies, my country has introduced a number of legal systems for the treatment of heavy metals in water. At present, the treatment methods of heavy metal wastewater mainly include chemical precipitation, ion exchange, solvent extraction, chemical redox and adsorption methods. Among them, the adsorption method has the adv...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/30B01J20/28B01J20/26B01D39/08C02F1/28D04B21/12C02F101/20
CPCB01D39/086B01D2239/0613B01J20/262B01J20/28054C02F1/285C02F2101/20D04B21/12D10B2331/04D10B2331/041
Inventor 唐文清曾荣英方淑英易露
Owner HENGYANG NORMAL UNIV