CN108373544B - Preparation method of nano feather down protein fiber membrane - Google Patents
Preparation method of nano feather down protein fiber membrane Download PDFInfo
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- CN108373544B CN108373544B CN201810118838.9A CN201810118838A CN108373544B CN 108373544 B CN108373544 B CN 108373544B CN 201810118838 A CN201810118838 A CN 201810118838A CN 108373544 B CN108373544 B CN 108373544B
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- 210000003746 feather Anatomy 0.000 title claims abstract description 69
- 102000004169 proteins and genes Human genes 0.000 title claims abstract description 47
- 108090000623 proteins and genes Proteins 0.000 title claims abstract description 47
- 239000000835 fiber Substances 0.000 title claims abstract description 26
- 239000012528 membrane Substances 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims description 14
- 238000003756 stirring Methods 0.000 claims abstract description 24
- 239000003513 alkali Substances 0.000 claims abstract description 20
- 239000002131 composite material Substances 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 7
- 238000007710 freezing Methods 0.000 claims abstract description 7
- 230000008014 freezing Effects 0.000 claims abstract description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 16
- 238000010521 absorption reaction Methods 0.000 claims description 13
- 239000006184 cosolvent Substances 0.000 claims description 13
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 12
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 12
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 8
- 239000003381 stabilizer Substances 0.000 claims description 8
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 8
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 6
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 6
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 6
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 241000208818 Helianthus Species 0.000 claims description 4
- 235000003222 Helianthus annuus Nutrition 0.000 claims description 4
- 239000004202 carbamide Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000004090 dissolution Methods 0.000 abstract description 10
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 20
- 239000012460 protein solution Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 238000001962 electrophoresis Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920001222 biopolymer Polymers 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000002211 ultraviolet spectrum Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2389/00—Characterised by the use of proteins; Derivatives thereof
Abstract
Compared with the prior art, the invention adopts a composite alkali liquor system, feather down can be dissolved by stirring at the low temperature of 20-25 ℃, the dissolution rate of the feather down is higher than 98%, the process advantages of high dissolution rate, energy saving, consumption reduction and the like are achieved, the feather down prepared by dissolution has the shape of nano fibrils, and the nano feather down protein fiber membrane can be prepared by natural drying or freezing membrane formation and has higher hydrophilic performance.
Description
Technical Field
The invention belongs to the field of material preparation, and particularly relates to a preparation method of a nano feather down protein fiber membrane.
Background
Proteins are important biopolymers and are widely used for the development of new and functional materials. The main body of the feather down fiber is natural protein, and if the feather down protein is utilized, the protein resource channel can be widened, thereby having important significance.
In the prior art, the dissolution rate can not meet the requirement, and the prepared product does not have the shape of nano fibril and can not meet the requirement.
Disclosure of Invention
The invention aims to provide a preparation method of a nano feather down protein fiber membrane, which adopts a composite alkali liquor system, can dissolve and prepare feather down under the condition of low temperature, has high dissolution rate, can form nano fibrils, and prepares the nano feather down protein fiber membrane through a natural drying or freezing method.
The specific technical scheme of the invention is as follows:
a preparation method of a nano feather down protein fiber membrane comprises the following steps:
1) preparing a composite alkali solution dissolving system:
dissolving sodium carbonate and sodium hydroxide in water, stirring for dissolving, cooling to room temperature, adding a moisture absorption cosolvent, stirring for dissolving, adding a stabilizer component, namely carboxymethyl cellulose, and stirring and uniformly mixing to obtain a composite alkali solution dissolving system;
2) adding feather down into the prepared composite alkali solution dissolving system, and stirring at low speed for dissolving at low temperature to obtain feather down protein dissolving solution;
3) pouring the feather down protein solution prepared in the step 2) into a mould, and forming a film by a natural drying method or a freezing method to obtain the nano feather down protein fiber film.
The mass concentration of sodium carbonate in the system in the step 1) is 2-4%; the mass concentration of the sodium hydroxide is 1-2%;
the moisture absorption cosolvent in the step 1) is prepared from the following raw materials in percentage by mass: urea: thiourea: glycerol: sunflower alcohol: isomeric tridecanols 20: 20: 3: 1: 0.5.
in the step 1), the mass concentration of the moisture absorption cosolvent in the system is 12-15%;
in the step 1), the mass concentration of the stabilizer component in the system is 0.8-1.0%.
Under the condition that the feather down is not immediately dissolved, the dissolving solution added with the moisture absorption cosolvent in the step 1) does not need to be added with a stabilizer component, the feather down is sealed and stored at normal temperature, and the stabilizer component is added into the dissolving solution before the feather down is dissolved.
The low temperature in the step 2) is 20-25 ℃.
The mass ratio of the feather down to the composite alkali solution dissolving system in the step 2) is 2-5: 100. the low-speed stirring is specifically as follows: stirring and dissolving for 4-12h under the condition of 20-50 r/min.
The natural drying method in the step 3) is to pour the feather down protein dissolved solution into a mould, and to stand for 48-52 hours at 20-25 ℃ to obtain the nano feather down protein fiber membrane.
The freezing method in the step 3) is to pour the feather down protein solution into a mould, and stand the mould for 24 to 36 hours at the temperature of minus 35 ℃ to obtain the nano feather down protein fiber membrane.
Pouring the mixture into different moulds according to different requirements in the step 3) to prepare the nano feather down protein fiber membranes with different thicknesses, wherein the preferable thickness is 1.5 mm.
Compared with the prior art, the down feather can be dissolved by adopting a composite alkali liquor system and stirring at the low temperature of 20-25 ℃, the dissolving system provided by the invention can fully destroy the hydrogen bond acting force among down feather fibrils, and retain the disulfide bond structure of protein, thereby providing a foundation for the formation of nano fibrils, simultaneously reducing the degradation of single strong alkali liquor to the macromolecules of down feather protein, ensuring that stable components have the function of a uniform protein dissolving system, avoiding the excessive damage to the local structure of the protein, ensuring that the prepared down feather fibrils are distributed more uniformly and have concentrated fibril size distribution; the dissolution rate of the feather down in the technology is higher than 98%, almost no residue exists, the technology has the advantages of high dissolution rate, energy conservation, consumption reduction and the like, the feather down prepared by dissolution has the shape of nano fibrils, and the nano feather down protein fiber membrane can be prepared by natural drying or freezing method film formation and has higher hydrophilic performance.
Drawings
FIG. 1 is a diagram of ultraviolet spectrum of feather down protein solution;
FIG. 2 is an infrared spectrum of a solution of feather down protein;
FIG. 3 is an electrophoresis diagram of the feather down protein liquid;
FIG. 4 shows the morphology of feather down fibrils in protein fluid;
fig. 5 is a static contact angle in a hydrophilic property test for the prepared feather down protein fiber membrane.
Detailed Description
Example 1
A preparation method of a nano feather down protein fiber membrane comprises the following steps:
1) preparing a composite alkali solution dissolving system:
at room temperature, dissolving sodium carbonate and sodium hydroxide in water, wherein the mass concentration of the sodium carbonate is 2.5 percent, and the mass concentration of the sodium hydroxide is 1 percent; stirring and dissolving, cooling to room temperature, and then adding a moisture absorption cosolvent, wherein the moisture absorption cosolvent is composed of the following raw materials in percentage by mass: urea: thiourea: glycerol: sunflower alcohol: isomeric tridecanols 20: 20: 3: 1: 0.5; after stirring and dissolving, the mass concentration of the moisture absorption cosolvent in the system is 13 percent; adding a stabilizer component of carboxymethyl cellulose, stirring and uniformly mixing, wherein the mass concentration of the carboxymethyl cellulose in the system is 0.8 percent, and obtaining a composite alkali solution dissolving system;
2) adding feather down into the prepared composite alkali solution dissolving system, wherein the mass ratio of the feather down to the composite alkali solution dissolving system is 3: stirring and dissolving at the temperature of 100 and 20 ℃ and the stirring speed of 30r/min for 10 hours, wherein the dissolution rate is 99 percent, and obtaining feather down protein dissolved solution; testing the feather down protein solution by using an ultraviolet visible spectrometer to obtain a spectrogram as shown in figure 1; the infrared spectrogram of the feather down protein solution is shown in figure 2; both fig. 1 and fig. 2 confirm that the feather hairs have dissolved, exhibiting characteristic ultraviolet and infrared absorption signals of the protein. The molecular weight distribution of the feather down protein is tested by adopting electrophoresis, and as shown in figure 3, the data shows that the molecular weight distribution of the feather down protein under the dissolving system is concentrated in the interval of 6.5k-20.0 k. The appearance and size of the feather down protein fibrils in the solution are tested by adopting a scanning electron microscope, as shown in figure 4, figure 4 shows that the diameter of the feather down protein fibrils under the protein dissolving system is between 0.1 and 2.5 mu m, and belongs to the nanometer size range, and the nano feather down fiber membrane is obtained after the protein solution is formed into a membrane.
3) Pouring the feather down protein solution prepared in the step 2) into a mould, and standing for 30 hours at-35 ℃ to obtain the nano feather down protein fiber membrane with the thickness of 1.5 mm.
The hydrophilic property of the prepared feather down protein fiber membrane was tested, and the result is shown in fig. 5. As can be seen from FIG. 5, the contact angle of the nano-feather down fiber membrane prepared by the method is 45.2 degrees, and the nano-feather down fiber membrane has high hydrophilic performance.
Example 2
A preparation method of a nano feather down protein fiber membrane comprises the following steps:
1) preparing a composite alkali solution dissolving system:
at room temperature, dissolving sodium carbonate and sodium hydroxide in water, wherein the mass concentration of the sodium carbonate is 4 percent, and the mass concentration of the sodium hydroxide is 2 percent; stirring and dissolving, cooling to room temperature, and then adding a moisture absorption cosolvent, wherein the moisture absorption cosolvent is composed of the following raw materials in percentage by mass: urea: thiourea: glycerol: sunflower alcohol: isomeric tridecanols 20: 20: 3: 1: 0.5; after stirring and dissolving, the mass concentration of the moisture absorption cosolvent in the system is 15 percent; adding a stabilizer component of carboxymethyl cellulose, stirring and uniformly mixing, wherein the mass concentration of the carboxymethyl cellulose in the system is 1 percent, and obtaining a composite alkali solution dissolving system;
2) adding feather down into the prepared composite alkali solution dissolving system, wherein the mass ratio of the feather down to the composite alkali solution dissolving system is 5: stirring and dissolving for 6h at the stirring speed of 50r/min at the temperature of 100 and 25 ℃, wherein the dissolution rate is 99 percent, and thus obtaining feather down protein dissolved solution;
3) pouring the feather down protein solution prepared in the step 2) into a mould, and standing for 50h at 20 ℃ to obtain the nano feather down protein fiber membrane with the thickness of 1.5 mm.
Claims (8)
1. A preparation method of a nano feather down protein fiber membrane is characterized by comprising the following steps:
1) preparing a composite alkali solution dissolving system:
dissolving sodium carbonate and sodium hydroxide in water, stirring for dissolving, cooling to room temperature, adding a moisture absorption cosolvent, stirring for dissolving, adding a stabilizer component, namely carboxymethyl cellulose, and stirring and uniformly mixing to obtain a composite alkali solution dissolving system;
2) adding feather down into the prepared composite alkali solution dissolving system, and stirring at low speed for dissolving at low temperature to obtain feather down protein dissolving solution;
3) pouring the feather down protein dissolved solution prepared in the step 2) into a mould, and forming a film by a natural drying method or a freezing method to obtain a nano feather down protein fiber film;
the mass concentration of sodium carbonate in the system in the step 1) is 2-4%; the mass concentration of the sodium hydroxide is 1-2%;
the moisture absorption cosolvent in the step 1) is prepared from the following raw materials in percentage by mass: urea: thiourea: glycerol: sunflower alcohol: isomeric tridecanols 20: 20: 3: 1: 0.5.
2. the preparation method of claim 1, wherein the mass concentration of the hygroscopic co-solvent in the system in the step 1) is 12-15%.
3. The production method according to claim 1 or 2, wherein the mass concentration of the stabilizer component in the system in step 1) is 0.8 to 1.0%.
4. The method according to claim 1 or 2, wherein the low temperature in step 2) is 20 to 25 ℃.
5. The preparation method according to claim 1 or 2, wherein the mass ratio of the feather down to the composite alkali solution system in the step 2) is 2-5: 100.
6. the preparation method according to claim 1 or 2, wherein the low-speed stirring in step 2) is specifically: stirring and dissolving for 4-12h under the condition of 20-50 r/min.
7. The preparation method according to claim 1 or 2, wherein the natural drying method in step 3) is to pour the solution of feather down protein into a mold, and to stand at 20-25 ℃ for 48-52h to obtain the nano feather down protein fiber membrane.
8. The preparation method according to claim 1 or 2, wherein the freezing method in step 3) is to pour the solution of feather down protein into a mold and to stand for 24-36h at-35 ℃ to obtain the nano feather down protein fiber membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810118838.9A CN108373544B (en) | 2018-02-06 | 2018-02-06 | Preparation method of nano feather down protein fiber membrane |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810118838.9A CN108373544B (en) | 2018-02-06 | 2018-02-06 | Preparation method of nano feather down protein fiber membrane |
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| CN108373544A CN108373544A (en) | 2018-08-07 |
| CN108373544B true CN108373544B (en) | 2021-02-02 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1631983A (en) * | 2004-10-31 | 2005-06-29 | 才景志 | Protein film and its preparation method |
| WO2005089292A2 (en) * | 2004-03-19 | 2005-09-29 | The United State Of America, As Represented By Thesecretary Of Agriculture | Compositions and films comprised of avian feather keratin |
| CN101412746A (en) * | 2008-12-01 | 2009-04-22 | 萧山区质量计量监测中心 | Preparation of feather protein film |
| CN101525490A (en) * | 2009-04-03 | 2009-09-09 | 东华大学 | Natural protein composite membrane reinforced by keratin whiskers and preparation method thereof |
| CN101838466A (en) * | 2010-04-30 | 2010-09-22 | 西北师范大学 | Preparation for feather keratin membrane and use of feather keratin membrane as medicament carrier |
| CN104725648A (en) * | 2013-12-19 | 2015-06-24 | 仲恺农业工程学院 | Preparation method for degradable feather protein/sodium carboxymethylcellulose composite membrane |
-
2018
- 2018-02-06 CN CN201810118838.9A patent/CN108373544B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005089292A2 (en) * | 2004-03-19 | 2005-09-29 | The United State Of America, As Represented By Thesecretary Of Agriculture | Compositions and films comprised of avian feather keratin |
| CN1631983A (en) * | 2004-10-31 | 2005-06-29 | 才景志 | Protein film and its preparation method |
| CN101412746A (en) * | 2008-12-01 | 2009-04-22 | 萧山区质量计量监测中心 | Preparation of feather protein film |
| CN101525490A (en) * | 2009-04-03 | 2009-09-09 | 东华大学 | Natural protein composite membrane reinforced by keratin whiskers and preparation method thereof |
| CN101838466A (en) * | 2010-04-30 | 2010-09-22 | 西北师范大学 | Preparation for feather keratin membrane and use of feather keratin membrane as medicament carrier |
| CN104725648A (en) * | 2013-12-19 | 2015-06-24 | 仲恺农业工程学院 | Preparation method for degradable feather protein/sodium carboxymethylcellulose composite membrane |
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| CN108373544A (en) | 2018-08-07 |
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Effective date of registration: 20231225 Address after: 231400 Tongan North Road, Tongcheng City, Anqing City, Anhui Province Patentee after: Anhui Zhonghong Xinyuan Textile Co.,Ltd. Address before: 241000 No. 8 Beijing Middle Road, Jiujiang District, Wuhu City, Anhui Province Patentee before: ANHUI POLYTECHNIC University |