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Mesh used for heavy metal treatment and making method thereof

A heavy metal and mesh technology, applied in the field of textile production, can solve the problems of complicated spinning and weaving process, many processes, etc., to avoid the reduction of the contact surface with sewage, control the preparation process, and improve the effect of adsorption.

Active Publication Date: 2016-06-22
HENGYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Mesh used for heavy metal treatment and making method thereof
  • Mesh used for heavy metal treatment and making method thereof
  • Mesh used for heavy metal treatment and making method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

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

[0048] (a) Preparation of hyperbranched dendrimer

[0049] Hyperbranched dendritic polymer, its chemical structural formula is:

[0050]

[0051] The concrete steps of its preparation method of hyperbranched dendritic polymer are as follows:

[0052] (1) Preparation of star-end double bond dendrimers

[0053] Using trimethylolpropane triacrylate TMPTA and melamine Ma as raw materials, and 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 at -10 ~ 5 ° C First, the alcoh...

Embodiment 2

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

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

[0078] (a) Preparation of hyperbranched dendrimer

[0079] Hyperbranched dendritic polymer, its chemical structural formula is:

[0080]

[0081] The concrete steps of its preparation method of hyperbranched dendritic polymer are as follows:

[0082] (1) Preparation of star-end double bond dendrimers

[0083] Using trimethylolpropane triacrylate TMPTA and melamine Ma as raw materials, and 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 at -10 ~ 5 ° C First, the alcoh...

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, the pollution caused by the discharge of heavy metal wastewater has posed a serious threat to the ecosystem and public health. Heavy metals in water have become one of the most serious environmental problems in my country. Therefore, heavy metal wastewater Governance has been highly valued by researchers at home and abroad. In order to more effectively prevent and control heavy metal pollution in water bodies, our 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, etc. Among them,...

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 Applications(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