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A composite filler for filling invisible anti-fog masks

A compound and particle compound technology, which is applied in the direction of respiratory filters, other chemical processes, respiratory protection containers, etc., can solve the problems of single variety, inconvenient use, poor ventilation, etc., and achieve small size, high filtration efficiency, light weight effect

Active Publication Date: 2021-04-02
QINGDAO AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thin and light masks are more convenient to use, but have little protective effect on the main harmful PM2.5 particles; while high-grade masks such as N95 with high protective effect are relatively thick and poorly ventilated, and there are many inconveniences in use
In addition, the existing invisible mask fillers on the market are mostly activated carbon adsorption materials, with a single variety

Method used

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  • A composite filler for filling invisible anti-fog masks
  • A composite filler for filling invisible anti-fog masks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Adsorptive nano-poultry liver particle composite filler for filling invisible anti-fog masks is prepared from the following raw materials: fresh chicken liver, poultry bone, chitosan, sodium alginate, 0.1mol / L NaOH, 0.1mol / L Phosphate buffer (pH7.4), glutaraldehyde, deionized water, absolute ethanol, tert-butanol, glycerol, acetic acid, trypsin (Nanjing Audofoni Biotechnology Co., Ltd., ≧250U / mg), Proper amount of polyphenol oxidase (Qiyi Biotechnology Co., Ltd., ≧500U / mg).

[0023] Its preparation method comprises the following steps:

[0024] (1) Take 50g of fresh chicken liver and cut it into small pieces of 0.2cm with scissors, add 500ml of 5% trypsin solution and stir slowly for 90min at 25°C until the poultry liver tissue is completely dispersed; add to the chicken liver tissue dispersion 25ml of glutaraldehyde, fixed at 4°C for 3 days, filtered, and rinsed 6 times with 0.1mol / L phosphate buffer (pH7.4). The rinsed sample tissue was eluted with 50%, 70%, 80% and...

Embodiment 2

[0034] The adsorptive nano-duck liver particle composite filler used to fill the invisible anti-fog mask is prepared from the following raw materials in parts by weight: 55g of fresh duck liver, 20g of duck bone, 20g of chitosan, 8g of sodium alginate, 0.1mol / L NaOH, 0.1mol / L phosphate buffer (pH7.4), glutaraldehyde, deionized water, absolute ethanol, tert-butanol, glycerol, acetic acid, trypsin (Nanjing Audofoni Biotechnology Co., Ltd. , ≧250U / mg), polyphenol oxidase (Qiyi Biotechnology Co., Ltd., ≧500U / mg) appropriate amount. Its preparation method comprises the following steps:

[0035] (1) Take 55g of fresh duck liver and cut it into small pieces of 0.2cm with scissors, add 600ml of 5% trypsin solution and stir slowly for 90min at 25°C until the poultry liver tissue is completely dispersed; add to the duck liver tissue dispersion 30ml of glutaraldehyde was fixed at 4°C for 3 days, filtered, and rinsed 6 times with 0.1mol / L phosphate buffer (pH7.4). The rinsed sample tis...

Embodiment 3

[0045] The adsorptive nano-poultry liver particle composite filler used to fill the invisible anti-fog mask is prepared from the following raw materials in parts by weight: 55g of fresh foie gras, 20g of goose bone, 17g of chitosan, 10g of sodium alginate, 0.1mol / L NaOH, 0.1mol / L phosphate buffer (pH7.4), glutaraldehyde, deionized water, absolute ethanol, tert-butanol, glycerol, acetic acid, trypsin (Nanjing Audofoni Biotechnology Co., Ltd. , ≧250U / mg), polyphenol oxidase (Qiyi Biotechnology Co., Ltd., ≧500U / mg) appropriate amount. Its preparation method comprises the following steps:

[0046] (1) Take 55g of fresh foie gras and cut it into small pieces of 0.2cm with scissors, add 600ml of 5% trypsin solution and stir slowly for 90min at 25°C until the foie gras tissue is completely dispersed; add to the foie gras tissue dispersion 30ml of glutaraldehyde was fixed at 4°C for 3 days, filtered, and rinsed 6 times with 0.1mol / L phosphate buffer (pH7.4). The rinsed sample tissu...

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Abstract

The invention provides a compound filler for filling invisible haze-preventive masks. The compound filler comprises active poultry bone meal and chitosan-modified poultry hepatic cell surface proteins. The compound filler has the advantages that the adsorption and the breathability of the compound filler can be improved under synergistic effects, and the filled invisible haze-preventive masks filled on the basis of the compound filler which is a novel adsorption material are light and small and are high in filter efficiency and free of skin irritation; as shown by results, the adsorption nanometer poultry hepatic cell particle compound filler is good in breathability and high in safety on the premise that sufficient protection effects are guaranteed, and users can wear the invisible haze-preventive masks comfortably; the invisible haze-preventive masks are high in filter efficiency, the compound filler is environmentally friendly, raw materials for the compound filler are easily available, and the like.

Description

technical field [0001] The invention belongs to the technical field of composite fillers for anti-smog masks, and in particular relates to an adsorptive nano-poultry liver particle composite filler for filling invisible anti-smog masks and a preparation method thereof. Background technique [0002] With the continuous development of my country's economic construction, industrial pollution is becoming more and more serious, and the number of automobiles is increasing rapidly. The emission of various harmful particulate matter has become a prominent problem. How to prevent inhalation of harmful particulate matter and protect people's health has also become one of the focuses of public attention. [0003] At present, the personal protection against inhalation of harmful particles is mainly based on various masks. Thin and light masks are more convenient to use, but have little protective effect on the main harmful PM2.5 particles; while high-grade masks such as N95 with high p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J20/30A62B23/06
CPCA62B23/06B01J20/24
Inventor 孙京新王淑玲王宝维孙永才李鹏黄明徐幸莲
Owner QINGDAO AGRI UNIV