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Bacteriostatic air filtering material made from rhizoma coptidis-nanometre zinc oxide ultra-fine fibre glass

A technology of ultra-fine glass fiber and air filter materials, which is applied in the fields of filtration and separation, chemical instruments and methods, deodorization, etc., and can solve problems such as large wind resistance, secondary pollution, and easy blockage

Inactive Publication Date: 2014-05-28
GUANGDONG SECOND PROVINCIAL TRADITIONAL CHINESE MEDICINE HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems that the filter material used in the existing high-efficiency air filter has relatively large wind resistance and is easy to block, and the microbial contamination adhered to the filter material is easy to produce drug resistance, and it is easy to reproduce in large numbers and cause secondary pollution to the environment. Invented antibacterial yellow lotus-nano zinc oxide ultrafine glass fiber air filter material, after mixing yellow lotus extract, xanthan gum, zinc oxide nanoparticles and glass fiber in a weight ratio of 0.4:0.0006:0.0001:1, Melt-blown weaving using melt-blown equipment and processes to form ultra-fine glass fiber filter materials,

Method used

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  • Bacteriostatic air filtering material made from rhizoma coptidis-nanometre zinc oxide ultra-fine fibre glass
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specific Embodiment

[0016] Please refer to figure 1 with figure 2 Shown, be a kind of specific embodiment of the bacteriostatic Huanglian-nanometer zinc oxide ultrafine glass fiber air filter material of the present invention, this bacteriostatic Huanglian-nanometer zinc oxide ultrafine glass fiber air filter material, will Huanglian extract, xanthan gum, zinc oxide nanoparticles and glass fiber are mixed according to the weight ratio of 0.4:0.0006:0.0001:1, and melt-blown weaving is carried out using melt-blown equipment and technology to form an ultra-fine glass fiber filter material.

[0017] The preparation steps of the described Huanglian extract are as follows: take 20 grams of Chinese medicine Huanglian decoction pieces, add 500ml of water, boil, concentrate and filter to obtain 200ml of concentrated filtrate, air-dry and stand at 90°C to obtain solid Huanglian precipitation, after Made into fine powder particles after drying;

[0018] The preparation steps of the nano-zinc oxide partic...

Embodiment 1

[0024] 1, preparation of Huanglian extract: get 800 grams of Chinese medicine Huanglian decoction pieces, add 20000ml of water, boil, concentrate and filter to obtain 8000ml of filtrate after concentration, air-dry and leave standstill to obtain solid Huanglian precipitation under 90 ° C conditions, after drying, prepare into fine powder particles 400 grams.

[0025] 2. Preparation of water-soluble zinc oxide nanoparticles:

[0026]2. Mix 0.1 g of zinc oxide with 55°C deionized water according to the weight percentage of 1:8, and stir evenly to make a zinc oxide solution; pass CO? gas into the zinc oxide solution, stir and heat up to 90°C at the same time, Insulate for 5 hours, then stop feeding CO? gas and heating; filter the reacted solution to remove water, dry the resultant at a temperature below 200°C, and pulverize the dried residue; pulverize the powder Then placed in an environment of 300° C. and roasted to obtain 0.1 g of nanometer zinc oxide powder.

[0027] Please...

Embodiment 2

[0029] 1. Preparation of Huanglian extract: take 1000 grams of Chinese medicine Huanglian decoction pieces, add 25000ml of water, boil, concentrate and filter to obtain 10000ml of filtrate after concentration, air-dry and leave standstill to obtain solid Huanglian precipitation under 90°C, after drying, prepare into fine powder particles 400 grams.

[0030] 2. Preparation of water-soluble zinc oxide nanoparticles:

[0031] 2. Mix 0.1 g of zinc oxide with 55°C deionized water according to the weight percentage of 1:8, and stir evenly to make a zinc oxide solution; pass CO? gas into the zinc oxide solution, stir and heat up to 90°C at the same time, Insulate for 5 hours, then stop feeding CO? gas and heating; filter the reacted solution to remove water, dry the resultant at a temperature below 200°C, and pulverize the dried residue; pulverize the powder Then placed in an environment of 300° C. and roasted to obtain 0.1 g of nanometer zinc oxide powder.

[0032] Please refer to...

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Abstract

The invention relates to a bacteriostatic air filtering material made from rhizoma coptidis-nanometre zinc oxide ultra-fine fibre glass. Four substances namely, rhizoma coptidis extracts, nanometre zinc oxide particles, xanthan gum and fibre glass are mixed and melt-blown, so that the ultra-fine fibre glass filtering material formed by melt-blowing and weaving not only has air filtering performance, but also has bacteriostasis performance for bacteria and viruses, such as golden staphylococcus, pseudomonas aeruginosa and the like. In the conventional bacteriostatic air filtering material, since the fibre surface of the air filtering material is coated in a sprayed manner with bacteriostatic materials, such as nanometre zinc oxide and the like, or the bacteriostatic materials, such as the nanometre zinc oxide and the like, are woven into a new air filtering screen to cover the surface of the air filtering material to form a composite filtering layer in the conventional bacteriostatic air filtering material, so that problems that windage resistance is easy to enlarge, microorganism pollution gathered on the filtering layer is easy to cause drug tolerance and an high-efficient air filter is easy to cause secondary pollution to environment because the filtering route of the air filtering material is decreased, are solved after the adoption of the bacteriostatic air filtering material.

Description

[0001] technical field [0002] The invention relates to a filtering and sterilizing equipment, in particular to a yellow lotus-nanometer zinc oxide superfine glass fiber air filter material with antibacterial performance. Background technique [0003] In order to minimize the risk of surgical infection in modern medical care, in addition to using various disinfection equipment, a sterile room for surgery is specially built, which is a sterile space called laminar flow operating room, using air cleaning technology Filter microbial contamination to control the air cleanliness in the space environment, suitable for the environment required by various operations, and form a positive and negative pressure difference environment in the operating room, so that the air flow flows from the operating area with high cleanliness to the area with low cleanliness , A small, thin layer of airflow is conveyed in the same direction at a uniform flow rate, realizing the unidirectional flow o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/14A61L9/00A61L101/56A61L101/30
Inventor 刘阳涂瑶生孙冬梅陈玉兴
Owner GUANGDONG SECOND PROVINCIAL TRADITIONAL CHINESE MEDICINE HOSPITAL
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