Unlock instant, AI-driven research and patent intelligence for your innovation.

Filter material and its manufacturing method

A technology of filter material and manufacturing method, applied in chemical instruments and methods, membrane, membrane technology, etc., can solve the problems of complicated manufacturing process of nano-ester fiber membrane and low performance of ion retention rate.

Active Publication Date: 2017-07-18
IND TECH RES INST
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the conventional nano-ester fiber membrane with a multi-layer composite structure has a complicated manufacturing process, and the ion rejection rate performance is not high.

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Filter material and its manufacturing method
  • Filter material and its manufacturing method
  • Filter material and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0025] The first solution can be prepared by dissolving the diamine compound in water, wherein the added amount of the diamine compound accounts for about 0.1-30% by weight of the first solution. The first solution may be further added with methanol, ethanol, isopropanol, or n-butanol. In addition, the second solution can be prepared by dissolving the acid chloride compound in an organic solvent, wherein the acid chloride compound accounts for about 0.1-1% by weight of the second solution, and the organic solvent used is such as n-hexane (hexane), trichlorotrifluoroethane 1,1,2-trichloro-1,2,2-trifluoroethane, pentane or heptane.

[0026] It should be noted that the polymer layer can be completely immersed in the first and second solutions. Therefore, after the interfacial polymerization reaction, the entire polymer layer can be converted into the surface selective composite layer to obtain figure 1 filter material shown. In addition, according to other embodiments of the p...

preparation example 1

[0031] Take 10g of sodium styrene sulfonate, 40g of 4-vinylpyridine, 7g of styrene, 50g of deionized water and 50g of isopropanol, put them into a reaction flask, and heat to 70°C under nitrogen. Take 0.2g potassium persulfate (KPS) as initiator and dissolve it in 10mL deionized water, inject it into the reaction bottle and continue to stir for 3 hours, then obtain ionic polymer (poly E) through precipitation and purification steps, the molecular weight is about 136784, and the product The rate is 88%.

[0032] Composite structure

preparation example 2

[0034] The ionic polymer (Poly E) obtained in Preparation Example 1 was dissolved in dimethylacetamide (DMAc) to obtain a solution (solid content: 18%). Next, the solution is formed on the support layer (PET non-woven fabric, thickness 110 μm) by discharge spinning to form a network polymer layer (thickness is about 10 μm, fiber diameter is between about 80 and 500 nm) to obtain a composite structure (1) .

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
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a filter material and a manufacturing method thereof. The filter material includes: a support layer; and a surface selective composite layer, wherein the surface selective composite layer is composed of ionic polymers and interfacial polymers interlaced, wherein the ionic Ionic bonds are formed between the polymer and the interfacially polymerized polymer.

Description

technical field [0001] The invention relates to a filter material and a manufacturing method thereof, in particular to a desalination filter material and a manufacturing method thereof. Background technique [0002] Major factories all over the world are actively developing various desalination filter materials for seawater, industrial water and wastewater, in order to efficiently treat salt in water and reduce operating pressure, thereby reducing energy consumption and water treatment costs. [0003] The industry proposes a nano-ester fiber membrane with a multi-layer composite structure, which can be operated under low pressure. However, the conventional nano-ester fiber membrane with a multi-layer composite structure has a complicated manufacturing process, and the ion rejection rate performance is not high. [0004] Therefore, there is an urgent need for a desalination filter material with a simplified process, which has high ion rejection rate and high flux properties,...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01D69/12B01D71/72B01D67/00
CPCB01D71/56B01D71/82B01D2325/16B01D69/12B01D69/1251B01D69/1071B01D71/262
Inventor 郑淑蕙蔡韦政林姗姗徐郁娟杨茵茹
Owner IND TECH RES INST