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Multifunctional nano filter medium and preparation method thereof

A multi-functional, nano-filtration technology, applied in separation methods, chemical instruments and methods, filtration and separation, etc., can solve problems such as inability to guarantee performance, achieve the effects of avoiding harm to the human body, efficiently filtering and blocking particles, and meeting purification needs

Inactive Publication Date: 2009-01-28
上海兰度科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these technologies aim to improve the filtration performance of the fiber, or to improve the bactericidal performance of the product, and do not combine the improvement of the two functions, and the performance cannot be guaranteed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A multifunctional nano-filter material provided by the present invention is composed of polyester nanofibers, on the surface and inside of the polyester nanofibers there are 3% nano-silver oxide, 0.5% nano-silicon oxide, 3% nano-titanium oxide, nano-oxidized 0.3% zinc and 3% nano-activated carbon, the diameters of the components contained are nano-silver oxide 1-10 nanometers, nano-silicon oxide 5-15 nanometers, nano-titanium oxide 2-15 nanometers, nano-zinc oxide 5-20 nanometers, nanometers Activated carbon 15-50 nanometers, polyester nanofiber 100-350 nanometers;

[0026] The preparation method of multifunctional nano-filter material as mentioned above is:

[0027] Step 1. Spinning-grade polyethylene terephthalate slices accounting for 4% by weight of the solvent are dissolved in the solvent at room temperature by electromagnetic stirring at a speed of 600 rpm in a reactor to form A polymer solution with a Berry number of 1-2; the solvent volume ratio of 1:1 is a mix...

Embodiment 2

[0034] A multifunctional nano-filter material provided by the present invention is composed of nylon nanofibers, and there are 10% nano-silver oxide, 5% nano-silicon oxide, 10% nano-titanium oxide, and 3% nano-zinc oxide on the surface and inside of the nylon nanofibers. % and nano-activated carbon 15%, the diameters of the components contained are, nano-silver oxide 10-30 nanometers, nano-silicon oxide 15-30 nanometers, nano-titanium oxide 15-30 nanometers, nano-zinc oxide 10-30 nanometers, nano-activated carbon 15-50 nanometers, nylon nanofibers 350-550 nanometers.

[0035] The preparation method of multifunctional nano-filter material as mentioned above is:

[0036] Step 1. Spinning-grade nylon 6 slices accounting for 20% by weight of the solvent are dissolved in the solvent under the condition of 60° C. by electromagnetic stirring at a speed of 1200 rpm in the reaction kettle to form a Berry number of 1 to 2 The polymer solution; The solvent is 88% formic acid.

[0037]S...

Embodiment 3

[0042] A kind of multifunctional nano-filter material provided by the present invention is made up of polystyrene nanofiber, has nano-silver oxide 6%, nano-silica 2.5%, nano-titanium oxide 5%, nano-silver oxide on the surface and inside of the polystyrene nano-fiber. Nano-zinc oxide 1.5% and nano-activated carbon 10%, the diameters of the components contained are, nano-silver oxide 5-10 nanometers, nano-silicon oxide 10-25 nanometers, nano-titanium oxide 5-15 nanometers, nano-zinc oxide 2-30 nanometers Nano, nano activated carbon 15-50 nanometers, polystyrene nanofibers 200-450 nanometers.

[0043] The preparation method of multifunctional nano-filter material as mentioned above is:

[0044] Step 1. Dissolving 35% of the polystyrene with a molecular weight of 190,000 in the weight of the solvent in the solvent under normal temperature conditions with mechanical stirring at a speed of 30 rpm to form a Berry number of 1 to 2 The polymer solution; The solvent is a concentration ...

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Abstract

The invention provides a multifunctional nanometer filter material and a preparation method; the multifunctional nanometer filter material consists of nanometer fibres and is characterized in that: according to the weight percentage, the surface and interior of the nanometer fibre comprises 3wt-10wt% of nanometer silver oxide, 0.5wt-5wt% of nanometer silicon oxide, 3wt-10wt% of nanometer titanium oxide, 0.3wt-3wt% of nanometer zinc oxide and 3wt-15wt% of nanometer active carbon. The preparation method of the invention comprises the steps as follows: polymer solution with the Berry number of 1-2 is formed firstly by mixing; subsequently, ultrasonic dispersing, static spinning, freezing, drying and carbonizing are carried out so as to gain the multifunctional nanometer filter material. The multifunctional nanometer filter material prepared by the method of the invention has the effects of effectively filtrating and blocking particulates and killing the micro-organism at the same time, and can keep the self-cleaning of the micro-organism.

Description

technical field [0001] The invention relates to a multifunctional nano filter material and a preparation method thereof. Background technique [0002] With the rapid development of industry, the convenience and speed of transportation, and the deteriorating environment, the pollutants and microorganisms in the air are increasing, and the transmission speed is also increasing. Various new types of bacterial infectious diseases are increasing and are very harmful. large, especially the SARS that occurred in 2003. The currently popular general-grade and medical-grade masks, as well as bacterial and microbial protective clothing, are facing great challenges. Inventing a multi-purpose, multi-functional, high-performance filter material has become a top priority. [0003] Studies have shown that the filtration function of the filter material is closely related to its pore size and its adsorption function. The smaller the fiber diameter and the larger the body surface area ratio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/04
Inventor 郭敏
Owner 上海兰度科技有限公司
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