CN104894840A - Preparation method of hydrophobic thin-film material for protective facial mask - Google Patents
Preparation method of hydrophobic thin-film material for protective facial mask Download PDFInfo
- Publication number
- CN104894840A CN104894840A CN201510289413.0A CN201510289413A CN104894840A CN 104894840 A CN104894840 A CN 104894840A CN 201510289413 A CN201510289413 A CN 201510289413A CN 104894840 A CN104894840 A CN 104894840A
- Authority
- CN
- China
- Prior art keywords
- film materials
- preparation
- protective mask
- hydrophobic
- mask hydrophobic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention discloses a preparation method of a hydrophobic thin-film material for a protective facial mask. The preparation method comprises the following steps: surface chemical etching treatment, namely putting a non-woven cloth material 0.2-0.8mm thick into an alkaline solution for treatment for 0.5-4 hours; taking out the non-woven cloth material after the surface chemical etching treatment, and flushing the surface of the non-woven cloth material by use of deionized water until the pH is less than 9; grafting stearic acid molecules, namely adding the non-woven cloth material after the surface chemical etching treatment to the aqueous solution of stearic acid at a temperature within the range of 30-60 DEG C, and under the condition of regulating the pH value to the range of 4-6 by use of the pH regulating agent, keeping at a constant temperature for 12-72 hours in the presence of a catalyst, namely obtaining the hydrophobic thin-film material for the protective facial mask. The hydrophobic thin-film material for the protective facial mask obtained by use of the method is excellent in hydrophobicity, and capable of effectively preventing the adsorption of water vapor on the facial mask; and high filtering efficiency and low respiration resistance of the material can be kept.
Description
Technical field
The present invention relates to haze guard technology field, more specifically relate to a kind of preparation method of protective mask hydrophobic-film materials.
Background technology
Along with increasing and nano material large-scale production of haze weather, the environmental exposure of particle and Exposed chance increase, and wearing mouth mask is one of the most effective method.Mouth mask mainly contains cotton mouth mask, non-woven fabrics gauze mask and contains electrostatic layer mouth mask three class.Wherein cotton mouth mask is less to respiratory resistance, but filter efficiency is low; Non-woven fabrics gauze mask filter efficiency is high, but larger to the resistance breathed; Overcome the defect of above-mentioned two kinds of mouth masks containing electrostatic layer mouth mask, have the advantages that filter efficiency is high, little to respiratory resistance.Be mainly electret containing electrostatic layer mouth mask material therefor, electret can under the factor effects such as highfield, and polarization is long term storage electric charge also, make particle captured under the effect of electric field force.Because respiratory is with the exhalation of steam, meeting adsorbed water on mouth mask, the absorption of water can destroy mouth mask electrostatic layer, and the mask filtration efficiency containing electrostatic layer is reduced, and condensation vapor causes respiratory resistance to increase in passage simultaneously.
Therefore need to improve containing electrostatic layer mouth mask, by optimizing surface treatment technology, develop a kind of material that can strengthen mouth mask inner and outer surface layers hydrophobic performance, make the absorption effectively stoping steam at electrostatic filter layer, make material keep higher filter efficiency and less respiratory resistance.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is exactly the hydrophobic properties of the surface how increasing protective mask material, and provides a kind of preparation method of protective mask hydrophobic-film materials.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of preparation method of protective mask hydrophobic-film materials, the method comprises the steps:
Step one: surface etch chemistry process: nonwoven cloth material is placed in aqueous slkali and processes 0.5-4h, for subsequent use; Surface etch chemistry process makes nonwoven cloth material surface form the concavo-convex top layer of one deck nanoscale and produce a large amount of activity hydroxy.
Step 2: grafting stearic acid molecule: be add the nonwoven cloth material of step after surface etch chemistry process in the stearic acid aqueous solution of 30 ~ 60 DEG C to temperature, be under the condition of 4 ~ 6 with pH adjusting agent adjust ph, in the presence of a catalyst, constant temperature keeps 12 ~ 72h, obtains protective mask hydrophobic-film materials.Water contact angle >=150 degree of the protective mask hydrophobic-film materials obtained.
Preferably, described step one also comprises the nonwoven cloth material of taking-up after surface etch chemistry process, with its surface of deionized water rinsing to pH < 9.
Preferably, the thickness of described nonwoven cloth material is 0.2-0.8mm.
Preferably, described aqueous slkali is NaOH solution, and solution concentration is 2mol/L ~ 6mol/L.
Preferably, described pH adjusting agent is HCl solution, and solution concentration is 0.1mol/L ~ 0.5mol/L.
Preferably, described stearic concentration is 1 ~ 3g/100mL.
Preferably, described catalyst is N-hydroxy-succinamide and 1-(3-dimethylamino-propyl)-3-ethyl-carbodiimide hydrochloride, the concentration of described N-hydroxy-succinamide is 0.1 ~ 1g/100mL, and the concentration of described 1-(3-dimethylamino-propyl)-3-ethyl-carbodiimide hydrochloride is 0.1 ~ 1g/100mL.。
Preferably, the weight ratio of described stearic acid and N-hydroxy-succinamide and 1-(3-dimethylamino-propyl)-3-ethyl-carbodiimide hydrochloride catalyst is 1 ~ 3:0.1 ~ 1:0.1 ~ 1.
Present invention also offers the protective mask hydrophobic-film materials obtained by preparation method of the protective mask hydrophobic-film materials described in use.
Water contact angle >=150 degree of described protective mask hydrophobic-film materials, filter efficiency >=99%, air penetrability >=110mm/s.
(3) beneficial effect
The preparation method of protective mask hydrophobic-film materials provided by the invention, simple, with low cost; Use the protective mask hydrophobic-film materials hydrophobic performance obtained by the inventive method excellent, effectively can stop the absorption of steam on mouth mask, make material keep high filter efficiency and little respiratory resistance.
Detailed description of the invention
Below in conjunction with embodiment, embodiments of the present invention are described in further detail.Following examples for illustration of the present invention, but can not be used for limiting the scope of the invention.
Embodiment 1:
Nonwoven cloth material is placed in the NaOH solution 2h of 2mol/L, after taking out, uses deionized water rinsing nonwoven surface to pH < 9.Nonwoven cloth material after process is placed in the container filling deionized water, in water-bath, be heated to 50 DEG C and keep constant temperature, be 4 ~ 6 by the hydrochloric acid conditioning solution pH value of 0.1mol/L, by 2.0g stearic acid, 1.0g N-hydroxy-succinamide and 0.5g1-(3-dimethylamino-propyl)-3-ethyl-carbodiimide hydrochloride successively add in above-mentioned solution, be 4 ~ 6 by the hydrochloric acid conditioning solution pH value of 0.1mol/L again, take out after constant temperature 24h.Measuring the contact angle of water on nonwoven fabric is 155 degree.
Embodiment 2:
Nonwoven cloth material is placed in the NaOH solution 1h of 4mol/L, after taking out, uses deionized water rinsing nonwoven surface to pH < 9.Nonwoven cloth material after process is placed in the container filling deionized water, in water-bath, be heated to 30 DEG C and keep constant temperature, be 4 ~ 6 by the hydrochloric acid conditioning solution pH value of 0.1mol/L, by 1.5g stearic acid, 0.5g N-hydroxy-succinamide and 0.5g1-(3-dimethylamino-propyl)-3-ethyl-carbodiimide hydrochloride successively add in above-mentioned solution, be 4 ~ 6 by the hydrochloric acid conditioning solution pH value of 0.1mol/L again, take out after constant temperature 48h.Measuring the contact angle of water on nonwoven fabric is 154 degree.
Comparative example:
Hydrophobic performance index-the water contact angle of the nonwoven fabric after the inventive method process and nonwoven fabric before treatment contrasts: result shows, the nonwoven fabric water contact angle do not processed is 102 degree, and nonwoven fabric water contact angle >=150 degree after the inventive method process, reach super-hydrophobic rank.
Above embodiment is only for illustration of the present invention, but not limitation of the present invention.Although with reference to embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, various combination, amendment or equivalent replacement are carried out to technical scheme of the present invention, do not depart from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of right of the present invention.
Claims (10)
1. a preparation method for protective mask hydrophobic-film materials, is characterized in that, the method comprises the steps:
Step one: surface etch chemistry process: nonwoven cloth material is placed in aqueous slkali and processes 0.5-4h, for subsequent use;
Step 2: grafting stearic acid molecule: be add the nonwoven cloth material of step after surface etch chemistry process in the stearic acid aqueous solution of 30 ~ 60 DEG C to temperature, be under the condition of 4 ~ 6 with pH adjusting agent adjust ph, in the presence of a catalyst, constant temperature keeps 12 ~ 72h, obtains protective mask hydrophobic-film materials.
2. the preparation method of protective mask hydrophobic-film materials according to claim 1, it is characterized in that, described step one also comprises takes out the nonwoven cloth material after surface etch chemistry process, with its surface of deionized water rinsing to pH < 9.
3. the preparation method of protective mask hydrophobic-film materials according to claim 1, is characterized in that, the thickness of described nonwoven cloth material is 0.2-0.8mm.
4. the preparation method of protective mask hydrophobic-film materials according to claim 1, is characterized in that, described aqueous slkali is NaOH solution, and solution concentration is 2mol/L ~ 6mol/L.
5. the preparation method of protective mask hydrophobic-film materials according to claim 1, is characterized in that, described pH adjusting agent is HCl solution, and solution concentration is 0.1mol/L ~ 0.5mol/L.
6. the preparation method of protective mask hydrophobic-film materials according to claim 1, is characterized in that, described stearic concentration is 1 ~ 3g/100mL.
7. the preparation method of protective mask hydrophobic-film materials according to claim 1, is characterized in that, described catalyst is N-hydroxy-succinamide and 1-(3-dimethylamino-propyl)-3-ethyl-carbodiimide hydrochloride; The concentration of described N-hydroxy-succinamide is 0.1 ~ 1g/100mL, and the concentration of described 1-(3-dimethylamino-propyl)-3-ethyl-carbodiimide hydrochloride is 0.1 ~ 1g/100mL.
8. the preparation method of the protective mask hydrophobic-film materials according to claim 6 or 7, it is characterized in that, the weight ratio of described stearic acid and N-hydroxy-succinamide and 1-(3-dimethylamino-propyl)-3-ethyl-carbodiimide hydrochloride catalyst is 1 ~ 3:0.1 ~ 1:0.1 ~ 1.
9. use the protective mask hydrophobic-film materials obtained by preparation method of the protective mask hydrophobic-film materials described in any one of claim 1-8.
10. protective mask hydrophobic-film materials according to claim 9, is characterized in that, water contact angle >=150 degree of described protective mask hydrophobic-film materials, filter efficiency >=99%, air penetrability >=110mm/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510289413.0A CN104894840B (en) | 2015-05-29 | 2015-05-29 | Preparation method of hydrophobic thin-film material for protective facial mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510289413.0A CN104894840B (en) | 2015-05-29 | 2015-05-29 | Preparation method of hydrophobic thin-film material for protective facial mask |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104894840A true CN104894840A (en) | 2015-09-09 |
| CN104894840B CN104894840B (en) | 2017-01-18 |
Family
ID=54027772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510289413.0A Expired - Fee Related CN104894840B (en) | 2015-05-29 | 2015-05-29 | Preparation method of hydrophobic thin-film material for protective facial mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104894840B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060148356A1 (en) * | 2004-05-21 | 2006-07-06 | Guangdong Esquel Textiles Co., Ltd. | Quick-drying pure cotton fabric with two faces having different properties and a method of producing same |
| US20110275261A1 (en) * | 2007-12-06 | 2011-11-10 | Francois Dandenault | Fast film formation water based barrier coating |
| CN102277721A (en) * | 2011-06-28 | 2011-12-14 | 东华大学 | Method for finishing nanometer aluminum oxide fluoride-free superhydrophobic textile fabric |
| CN102965910A (en) * | 2012-09-11 | 2013-03-13 | 陕西科技大学 | Preparation method of super-hydrophobic polyester textile |
-
2015
- 2015-05-29 CN CN201510289413.0A patent/CN104894840B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060148356A1 (en) * | 2004-05-21 | 2006-07-06 | Guangdong Esquel Textiles Co., Ltd. | Quick-drying pure cotton fabric with two faces having different properties and a method of producing same |
| US20110275261A1 (en) * | 2007-12-06 | 2011-11-10 | Francois Dandenault | Fast film formation water based barrier coating |
| CN102277721A (en) * | 2011-06-28 | 2011-12-14 | 东华大学 | Method for finishing nanometer aluminum oxide fluoride-free superhydrophobic textile fabric |
| CN102965910A (en) * | 2012-09-11 | 2013-03-13 | 陕西科技大学 | Preparation method of super-hydrophobic polyester textile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104894840B (en) | 2017-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108425238B (en) | Preparation method of antibacterial graphene non-woven fabric with low resistance and high filtering efficiency for mask | |
| KR20190071593A (en) | Method for manufacturing mask-pack which adsorbing heavy metal and mask-pack using the same | |
| CN105174859A (en) | Diatomite micropowder-based interior wall paint capable of removing formaldehyde and peculiar smell in indoor air and preparation method thereof | |
| CN108359116B (en) | Preparation method of lithium ion sieve exchange membrane and product thereof | |
| CN104397901B (en) | A kind of low-voltage plasma nano water-proof mask and process technique thereof | |
| CN104894840A (en) | Preparation method of hydrophobic thin-film material for protective facial mask | |
| CN105948307B (en) | A kind for the treatment of process of lead waste water | |
| JP6224147B2 (en) | Ammonia treatment method for porous carbon material, method for producing porous carbon material, and method for producing formaldehyde absorbent | |
| CN109279675A (en) | A kind of preparation method of active carbon loading silver | |
| CN110754720B (en) | Dehumidification self-heating active alumina three-dimensional gauze mask | |
| CN205505226U (en) | Energy -concerving and environment -protective air purification device | |
| CN112316688A (en) | Hydrochloric acid absorption tower and process for producing hydrochloric acid | |
| CN103989269A (en) | Method for manufacturing photocatalysis self-cleaning mask | |
| CN205757364U (en) | A kind of gauze mask | |
| CN111513386A (en) | Health-care mask capable of resisting and killing virus | |
| CN111648138B (en) | Super-hydrophobic porous chitosan/Ag@AgCl-TiO 2 Composite material and environment-friendly mask | |
| CN107321310A (en) | A kind of preparation method of indoor formaldehyde absorption activated carbon | |
| CN108325112A (en) | A kind of production method of absorbing filter gauze mask | |
| CN103074746A (en) | Processing process of pollen allergy resistant cloth material | |
| CN204540897U (en) | Haze composite material | |
| CN113812701A (en) | Gauze mask filter core | |
| CN109011920B (en) | Antibacterial air filtering membrane | |
| CN103570084B (en) | Nanosilver-based method for protecting and treating blue-green algae pollution | |
| CN203694303U (en) | Filter for breathing machine | |
| CN106395821A (en) | Method for reducing ammonia content of impregnated activated carbon |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20170529 |