CN115260552B - High-light-transmittance and high-haze holocellulose film material and preparation method thereof - Google Patents
High-light-transmittance and high-haze holocellulose film material and preparation method thereof Download PDFInfo
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- CN115260552B CN115260552B CN202210973942.2A CN202210973942A CN115260552B CN 115260552 B CN115260552 B CN 115260552B CN 202210973942 A CN202210973942 A CN 202210973942A CN 115260552 B CN115260552 B CN 115260552B
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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
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
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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
- C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2301/02—Cellulose; Modified cellulose
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Abstract
The invention relates to a high-light-transmittance and high-haze fully-mechanized cellulose film material and a preparation method thereof, comprising the following steps: (1) preparation of agate rattan sulfate slurry; (2) bleaching of agate rattan sulfate pulp; (3) Preparation of agate rattan heald cellulose nanofiber (TEMPO oxidation method); (4) And (5) constructing an agate rattan heald cellulose nanofiber membrane material. The tensile strength of the prepared film material is 84.8MPa, the light transmittance is 93.7%, and the haze is 62.2%. The method has low equipment requirement, easy operation and strong controllability, and can be used for mass production.
Description
Technical Field
The invention belongs to the technical field of functional cellulose-based material science, and particularly relates to a high-light-transmittance and high-haze comprehensive cellulose film material and a preparation method thereof.
Background
Transmittance is understood to be the ability of a material to transmit light, the higher the transmittance, the more light is transmitted. Haze is an ability to characterize the scattering of light by a material, the greater the haze, the greater the scattering of light by the material and the less visible to the human eye. Such as frosted glass, stands on the other end of the glass, and the human eye cannot see the scene on the other side of the glass, but the glass is transparent. Coming in the intelligent era, the touch screen starts to have high requirements on the transmittance of a plurality of materials, the transmittance of a plurality of materials needs to be detected, and the transmittance and the haze generally need to be detected simultaneously.
At present, scientific researchers extract and prepare materials such as cellulose nanofiber, cellulose nanocrystalline and the like through common biomass materials such as wood, bamboo wood, gramineae and the like, and prepare various functional film materials by using the materials, so that a great deal of support is provided for developing high-performance photoelectric materials. Rattan has not received attention as the third largest biomass material worldwide next to wood and bamboo. The nanofiber material is prepared from rattan materials and assembled by a simple method to prepare the nanofiber material into the membrane material with high light transmittance, high haze and excellent mechanical properties, and the nanofiber material has important practical significance for further developing the wood-based biomass high-end material and promoting the realization of the national strategic targets of carbon peak and carbon neutralization.
Disclosure of Invention
The aim of the part is to prepare cellulose nano-fiber from rattan and prepare high-performance fully-mechanized cellulose membrane material with strong mechanical property, high light transmittance and large haze by using a simple solvent replacement drying process.
The invention relates to a solvent replacement initiated high-light transmittance and high-haze holocellulose film material and a preparation method thereof, which are carried out according to the following steps:
1. 108g of agate vine pieces are put into a cooking pot, and the alkali consumption of 16% calculated by Na2O, the vulcanization degree of 25% and the vulcanization degree of 1 are as follows: and adding the cooking liquor with the ratio of 5 to the liquor into a cooking pot containing agate rattan slices for pulping. The air is discharged when the temperature rises to 100 ℃ in the cooking process, and then the temperature is raised to 170 ℃ at the rate of 10 ℃ every 10min, and then the heat is preserved for 2 hours. And (3) after the cooking is finished, cooling and deflating, filtering by using a pulp bag to remove black liquor, and preparing the agate rattan pulp.
2. The prepared agate rattan pulp is bleached by using alkaline hydrogen peroxide, and the bleaching process comprises the following steps: the agate rattan pulp is subjected to sealing, heating and bleaching treatment by using hydrogen peroxide (10% of the weight of absolute dry pulp), sodium hydroxide (20% of the weight of absolute dry pulp), sodium silicate (0.1% of the weight of absolute dry pulp), diethyl triamine pentaacetic acid (the dosage is 0.2% of the weight of absolute dry pulp) with the liquid ratio of 1:5, and the treatment time is 1h at the temperature of 90 ℃. After bleaching is completed, the bleached pulp is rinsed with deionized water to remove residual chemicals.
3. Preparation of fully-mechanized cellulose nanofibers: (1) Weighing 2g of bleached agate rattan pulp, dispersing the agate rattan pulp into 200mL of deionized water, and fully stirring; (2) Adding 0.032g TEMPO and 0.2g NaBr into the above bleached agate rattan pulp dispersion liquid and fully mixing; (3) Adding 10mmol NaClO dropwise into the mixture to oxidize the bleached agate rattan pulp, wherein the pH value of the bleached agate rattan pulp is regulated and controlled by NaOH solution in the oxidation process to keep the pH value at 10; (4) When all NaClO is dripped, the pH value is kept at about 10 and is not reduced any more for 20 minutes, which indicates that the reaction is completed; (5) The oxidized pulp was dialyzed for 7 days and then subjected to mechanical pulverization to prepare a fully-mechanized cellulose nanofiber (0.44 wt%).
4. Weighing 11.35g of prepared heald cellulose nanofiber, adding deionized water to 50mL, performing ultrasonic treatment for 20min, performing suction filtration, performing solvent replacement treatment on a filter membrane by using acetone and n-hexane after the suction filtration is completed, and performing air drying to obtain the high-light-transmittance high-haze heald cellulose membrane material.
The solvent replacement treatment is to immerse the membrane material obtained by suction filtration in acetone for 6 hours, discard the acetone solution, immerse the membrane material in acetone for 6 hours again, and repeat for three times; the membrane material was then immersed in n-hexane for 6 hours, the n-hexane solution was discarded, and the membrane material was immersed in n-hexane again, and repeated three times.
The invention successfully prepares the agate rattan cellulose nanofiber by sulfate pulping, hydrogen peroxide bleaching, TEMPO oxidation and mechanical separation treatment of the agate rattan, and successfully prepares the fully-synthesized cellulose membrane material with high tensile strength (84.8 MPa), high light transmittance (93.7%) and high haze (62.2%) by suction filtration and solvent replacement treatment. The method has low equipment requirement, easy operation and strong controllability, and can be used for mass production.
Drawings
FIG. 1 is a flow chart of the preparation of agate rattan cellulose nanofibers.
FIG. 2 shows the composition analysis (a), IR spectrum analysis (b), crystallization structure analysis (c) and thermal stability analysis (d) of agate rattan (NR), kraft pulp (RKP) and bleached kraft pulp (BRKP).
FIG. 3 is a graph of agate rattan cellulose nanofibers TEM (a), AFM (b), component (c), infrared spectrum (d), crystalline structure (e), and thermal stability (f).
Fig. 4 is a scanning electron microscope image of a film material prepared by air-drying (a and b) agate rattan cellulose nanofibers of comparative example 1 and solvent displacement drying (d and e) of example 1.
FIG. 5 is a film material (HCNF-film) prepared by air-drying agate rattan cellulose nanofibers of comparative example 1 AD ) And example 1 film Material prepared by solvent Displacement drying (HCNF-film SD ) The stress strain curve (a) and the corresponding mechanical property (b) analysis, the potential application scene (c), the conflict analysis (d) for overcoming the light transmittance and the haze, the light transmittance analysis (e) and the haze (f) analysis chart.
Detailed Description
In order that the invention may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. The following examples are provided for the purpose of the present invention, but the scope of the present invention is not limited to the following specific examples.
Example 1:
1. placing 108g of agate vine slices into a cooking pot, and using Na 2 Adding 20% of cooking liquor with alkali content, 25% of sulfidation degree and 1:5 feed-liquid ratio in an agate vine piece-containing cooking pot for pulping. The small air release is carried out when the temperature is increased to 100 ℃ in the cooking process, and then the temperature is increased to 170 ℃ at the rate of 10 ℃ every 10min, and then the heat is preserved for 2h. And (3) after the cooking is finished, cooling and deflating, filtering by using a pulp bag to remove black liquor, and preparing the agate rattan pulp.
2. The prepared agate rattan pulp is bleached by using alkaline hydrogen peroxide, and the bleaching process comprises the following steps: hydrogen peroxide (10% of the weight of the absolute slurry), sodium hydroxide (20% of the weight of the absolute slurry), sodium silicate (0.1% of the weight of the absolute slurry) and diethyl triamine pentaacetic acid (0.2% of the weight of the absolute slurry) are used, and the feed liquid ratio is 1: and 5, carrying out sealing, heating and bleaching treatment on the agate rattan pulp, wherein the temperature is 90 ℃, and the treatment time is 1h. After bleaching is completed, the bleached pulp is rinsed with deionized water to remove residual chemicals.
3. Preparation of fully-mechanized cellulose nanofibers: (1) Weighing 2g of bleached agate rattan pulp, dispersing the agate rattan pulp into 200mL of deionized water, and fully stirring; (2) Adding 0.032g TEMPO and 0.2g NaBr into the above bleached agate rattan pulp dispersion liquid and fully mixing; (3) Adding 10mmol NaClO dropwise into the mixture to oxidize the bleached agate rattan pulp, wherein the pH value of the bleached agate rattan pulp is regulated and controlled by NaOH solution in the oxidation process to keep the pH value at 10; (4) When all NaClO is dripped, the pH value is kept at about 10 and is not reduced any more for 20 minutes, which indicates that the reaction is completed; (5) The oxidized pulp was dialyzed for 7 days and then subjected to mechanical pulverization to prepare a fully-mechanized cellulose nanofiber (0.44 wt%).
4. Weighing 11.35g of prepared heald cellulose nanofiber, adding deionized water to 50mL, performing ultrasonic treatment for 20min, performing suction filtration (the pore diameter of a filter membrane is 0.45 micrometers), immersing the heald cellulose nanofiber membrane obtained by suction filtration into acetone firstly after the suction filtration is completed, immersing the membrane material obtained by suction filtration into normal hexane, sequentially performing solvent replacement treatment (immersing the membrane material obtained by suction filtration into acetone for 6h, discarding the acetone solution, immersing the membrane material into acetone for 6h again, repeating for three times, immersing the membrane material into normal hexane for 6h, discarding the normal hexane solution, immersing the membrane material into normal hexane again, repeating for three times), and air-drying to obtain the high-light-transmittance high-haze heald cellulose membrane material.
Example 2:
1. placing 108g of agate vine slices into a cooking pot, and using Na 2 Adding 16% of cooking liquor with alkali amount, 25% of sulfidation degree and 1:5 liquor ratio in an agate vine piece-containing cooking pot for pulping. The small air release is carried out when the temperature is increased to 100 ℃ in the cooking process, and then the temperature is increased to 170 ℃ at the rate of 10 ℃ every 10min, and then the heat is preserved for 2h. And (3) after the cooking is finished, cooling and deflating, filtering by using a pulp bag to remove black liquor, and preparing the agate rattan pulp.
2. The prepared agate rattan pulp is bleached by using alkaline hydrogen peroxide, and the bleaching process comprises the following steps: hydrogen peroxide (10% of absolute dry slurry), sodium hydroxide (20% of absolute dry slurry), sodium silicate (0.1% of absolute dry slurry), diethyl triamine pentaacetic acid (0.2% of absolute dry slurry) and a liquid ratio of 1:5 are used, and agate rattan slurry is subjected to sealing, heating and bleaching treatment at the temperature of 80 ℃ for 1h. After bleaching is completed, the bleached pulp is rinsed with deionized water to remove residual chemicals.
3. Preparation of fully-mechanized cellulose nanofibers: (1) Weighing 2g of bleached agate rattan pulp, dispersing the agate rattan pulp into 200mL of deionized water, and fully stirring; (2) Adding 0.032g TEMPO and 0.2g NaBr into the above bleached agate rattan pulp dispersion liquid and fully mixing; (3) Adding 10mmol NaClO dropwise into the mixture to oxidize the bleached agate rattan pulp, wherein the pH value of the bleached agate rattan pulp is regulated and controlled by NaOH solution in the oxidation process to keep the pH value at 10; (4) When all NaClO is dripped, the pH value is kept at about 10 and is not reduced any more for 20 minutes, which indicates that the reaction is completed; (5) The oxidized pulp was dialyzed for 7 days and then subjected to mechanical pulverization to prepare a fully-mechanized cellulose nanofiber (0.44 wt%).
4. Weighing 11.35g of prepared heald cellulose nanofiber, adding deionized water to 50mL, performing ultrasonic treatment for 20min, performing suction filtration, performing solvent replacement treatment on a filter membrane by using acetone and n-hexane after the suction filtration is completed, and performing air drying to obtain the high-light-transmittance high-haze heald cellulose membrane material.
Example 3:
1. placing 108g of agate vine slices into a cooking pot, and using Na 2 Adding 16% of cooking liquor with alkali amount, 25% of sulfidation degree and 1:5 liquor ratio in an agate vine piece-containing cooking pot for pulping. The small air release is carried out when the temperature is increased to 100 ℃ in the cooking process, and then the temperature is increased to 170 ℃ at the rate of 10 ℃ every 10min, and then the heat is preserved for 2h. And (3) after the cooking is finished, cooling and deflating, filtering by using a pulp bag to remove black liquor, and preparing the agate rattan pulp.
2. The prepared agate rattan pulp is bleached by using alkaline hydrogen peroxide, and the bleaching process comprises the following steps: hydrogen peroxide (10% of absolute dry slurry), sodium hydroxide (20% of absolute dry slurry), sodium silicate (0.1% of absolute dry slurry), diethyl triamine pentaacetic acid (0.2% of absolute dry slurry) and a liquid ratio of 1:5 are used, and agate rattan slurry is subjected to sealing, heating and bleaching treatment at 90 ℃ for 1h. After bleaching is completed, the bleached pulp is rinsed with deionized water to remove residual chemicals.
3. Preparation of fully-mechanized cellulose nanofibers: (1) Weighing 2g of bleached agate rattan pulp, dispersing the agate rattan pulp into 200mL of deionized water, and fully stirring; (2) Adding 0.032g TEMPO and 0.2g NaBr into the above bleached agate rattan pulp dispersion liquid and fully mixing; (3) Adding 10mmol NaClO dropwise into the mixture to oxidize the bleached agate rattan pulp, wherein the pH value of the bleached agate rattan pulp is regulated and controlled by NaOH solution in the oxidation process to keep the pH value at 10; (4) When all NaClO is dripped, the pH value is kept at about 10 and is not reduced any more for 20 minutes, which indicates that the reaction is completed; (5) The oxidized pulp was dialyzed for 7 days and then subjected to mechanical pulverization to prepare a fully-mechanized cellulose nanofiber (0.44 wt%).
4. Weighing 11.35g of prepared heald cellulose nanofiber, adding deionized water to 50mL, performing ultrasonic treatment for 30min, performing suction filtration, performing solvent replacement treatment on a filter membrane by using acetone and n-hexane after the suction filtration is completed, and performing air drying to obtain the high-light-transmittance high-haze heald cellulose membrane material.
Comparative example 1:
1. placing 108g of agate vine slices into a cooking pot, and using Na 2 Adding 20% of cooking liquor with alkali content, 25% of sulfidation degree and 1:5 feed-liquid ratio in an agate vine piece-containing cooking pot for pulping. The small air release is carried out when the temperature is increased to 100 ℃ in the cooking process, and then the temperature is increased to 170 ℃ at the rate of 10 ℃ every 10min, and then the heat is preserved for 2h. And (3) after the cooking is finished, cooling and deflating, filtering by using a pulp bag to remove black liquor, and preparing the agate rattan pulp.
2. The prepared agate rattan pulp is bleached by using alkaline hydrogen peroxide, and the bleaching process comprises the following steps: the agate rattan pulp is subjected to sealing, heating and bleaching treatment by using hydrogen peroxide (10% of the weight of absolute dry pulp), sodium hydroxide (20% of the weight of absolute dry pulp), sodium silicate (0.1% of the weight of absolute dry pulp), diethyl triamine pentaacetic acid (the dosage is 0.2% of the weight of absolute dry pulp) with a feed liquid ratio of 1:5, wherein the temperature is 90 ℃ and the treatment time is 1h. After bleaching is completed, the bleached pulp is rinsed with deionized water to remove residual chemicals.
3. Preparation of fully-mechanized cellulose nanofibers: (1) Weighing 2g of bleached agate rattan pulp, dispersing the agate rattan pulp into 200mL of deionized water, and fully stirring; (2) Adding 0.032g TEMPO and 0.2g NaBr into the above bleached agate rattan pulp dispersion liquid and fully mixing; (3) Adding 10mmol NaClO dropwise into the mixture to oxidize the bleached agate rattan pulp, wherein the pH value of the bleached agate rattan pulp is regulated and controlled by NaOH solution in the oxidation process to keep the pH value at 10; (4) When all NaClO is dripped, the pH value is kept at about 10 and is not reduced any more for 20 minutes, which indicates that the reaction is completed; (5) The oxidized pulp was dialyzed for 7 days and then subjected to mechanical pulverization to prepare a fully-mechanized cellulose nanofiber (0.44 wt%).
4. Weighing 11.35g of prepared heald cellulose nanofiber, adding deionized water to 50mL, performing ultrasonic treatment for 20min, performing suction filtration (with a filter membrane aperture of 0.45 micrometers), and air-drying to obtain the heald cellulose membrane material.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (5)
1. A preparation method of a high-light-transmittance and high-haze fully-mechanized cellulose film material is characterized by comprising the following steps of: is composed of the following steps of the method,
step 1: placing 108g agate vine pieces into a cooking pot, adding Na into the pot 2 O16% alkali consumption, 25% degree of vulcanization, 1: adding the cooking liquor prepared by the ratio of 5 to the material liquid into the cooking pot for cooking and pulping, cooling and deflating after cooking is completed, and filtering by a pulp bag to remove black liquor to prepare agate rattan pulp；
Step 2: hydrogen peroxide, sodium hydroxide, sodium silicate and diethyl triamine pentaacetic acid are used, and the feed liquid ratio is 1:5, carrying out sealing, heating and bleaching treatment on the agate rattan pulp, wherein the temperature is 80-90 ℃ and the treatment time is 1 h; the consumption of hydrogen peroxide is 10% of the weight of the absolute dry slurry, the consumption of sodium hydroxide is 20% of the weight of the absolute dry slurry, the consumption of sodium silicate is 0.1% of the weight of the absolute dry slurry, and the consumption of diethyl triamine pentaacetic acid is 0.2% of the weight of the absolute dry slurry;
step 3: preparing the agate rattan pulp subjected to the bleaching treatment in the step 2 into a fully-mechanized cellulose nanofiber solution;
step 4: carrying out suction filtration on the heald cellulose nanofiber solution to obtain an agate rattan heald cellulose membrane, and sequentially carrying out acetone and n-hexane solvent replacement and air drying treatment on the agate rattan heald cellulose membrane to obtain a heald cellulose membrane material with high light transmittance and high haze;
the preparation method of the step 3 comprises the following steps: (1) Weighing 2g bleached agate rattan pulp, dispersing the agate rattan pulp into 200mL deionized water, and fully stirring to obtain agate rattan pulp dispersion liquid; (2) Adding 0.032g TEMPO and 0.2g NaBr to agate rattan slurry dispersion and fully mixing to obtain a mixture; (3) Dropwise adding 10mmol of NaClO into the mixture obtained in the step (2) to oxidize the bleached agate rattan pulp, wherein the pH=10 is regulated by using a NaOH solution in the oxidation process; (4) When all NaClO is dripped, the pH value is kept at 10 and is not reduced any more for 20 min; (5) Mechanical crushing treatment is carried out after dialysis treatment is carried out for 7 days to prepare a fully-mechanized cellulose nanofiber solution;
sequentially performing acetone and n-hexane solvent replacement on the agate rattan heald cellulose membrane, namely firstly immersing the agate rattan heald cellulose membrane in acetone for 6 hours, discarding the acetone solution, immersing the agate rattan heald cellulose membrane in acetone for 6 hours again, and repeating the steps for three times; and then immersing the agate rattan heald cellulose membrane into n-hexane for 6 hours, discarding the n-hexane solution, immersing the agate rattan heald cellulose membrane into n-hexane again, and repeating the steps three times.
2. The method for producing a high light transmittance and high haze holocellulose film material according to claim 1, characterized in that: the cooking is performed by small deflation when the temperature rises to 100 ℃ during the cooking process, and then the temperature is kept at 2h after the temperature rises to 170 ℃ at the rate of 10 ℃ every 10 min.
3. The method for producing a high light transmittance and high haze holocellulose film material according to claim 1 or 2, characterized in that: and 4, carrying out suction filtration on the fully-mechanized cellulose nanofiber solution, namely adding water into the fully-mechanized cellulose nanofiber solution obtained in the step 3 of 11.35g to 50mL, and carrying out suction filtration after carrying out ultrasonic treatment for 20-30 min.
4. The method for producing a high light transmittance and high haze holocellulose film material according to claim 1 or 2, characterized in that: the pore diameter of the filter membrane is 0.45 micron.
5. The high light transmittance and high haze fully-mechanized cellulose film material made by the method of claim 1.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162150A (en) * | 2011-03-21 | 2011-08-24 | 山东海龙股份有限公司 | Towel gourd viscose fiber and preparation method thereof |
| GB201501423D0 (en) * | 2015-01-28 | 2015-03-11 | Innovia Films Ltd | Process |
| CN108752486A (en) * | 2018-04-20 | 2018-11-06 | 华南农业大学 | One-step method sulphuric acid hydrolysis prepares cellulose II nanometer crystal method |
| CN110204748A (en) * | 2019-04-29 | 2019-09-06 | 福建农林大学 | A kind of preparation method and applications of haze high transparency flexible fiber element film |
-
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- 2022-08-15 CN CN202210973942.2A patent/CN115260552B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162150A (en) * | 2011-03-21 | 2011-08-24 | 山东海龙股份有限公司 | Towel gourd viscose fiber and preparation method thereof |
| GB201501423D0 (en) * | 2015-01-28 | 2015-03-11 | Innovia Films Ltd | Process |
| CN108752486A (en) * | 2018-04-20 | 2018-11-06 | 华南农业大学 | One-step method sulphuric acid hydrolysis prepares cellulose II nanometer crystal method |
| CN110204748A (en) * | 2019-04-29 | 2019-09-06 | 福建农林大学 | A kind of preparation method and applications of haze high transparency flexible fiber element film |
Non-Patent Citations (3)
| Title |
|---|
| A study on the transmission haze and mechanical properties of highly transparent paper with different fiber species;Panpan Zhou et.al.;《Cellulose》;第25卷(第3期);2051-2061 * |
| Effects of cellulose nanofiber on the thermal, mechanical, and optical properties of triacetate cellulose nanocomposites;Wu, C. M. et.al.;《eXPRESS Polymer Letters》;第14卷(第5期);467-476 * |
| 溶剂交换法制备纳米纤维素多孔薄膜及其结构表征;龙克莹等;《中国造纸学报》;第33卷(第1期);22-26 * |
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