CN108659267A - A kind of ultraviolet protection method - Google Patents
A kind of ultraviolet protection method Download PDFInfo
- Publication number
- CN108659267A CN108659267A CN201810562026.3A CN201810562026A CN108659267A CN 108659267 A CN108659267 A CN 108659267A CN 201810562026 A CN201810562026 A CN 201810562026A CN 108659267 A CN108659267 A CN 108659267A
- Authority
- CN
- China
- Prior art keywords
- protecting film
- protection
- graphene oxide
- ultraviolet
- liquid
- 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
Classifications
-
- 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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D101/00—Coating compositions based on cellulose, modified cellulose, or cellulose derivatives
- C09D101/02—Cellulose; Modified cellulose
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/042—Graphene or derivatives, e.g. graphene oxides
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a kind of ultraviolet protection method, step includes：(1) graphene oxide is used to prepare protection film liquid with nano-cellulose；(2) moisture for removing protection film liquid obtains protecting film, and is wrapped up body surface to be protected.Step (2) can also be saved, the protection film liquid prepared is directly directly coated at body surface to be protected to form protective coating.In addition, the present invention also provides the technical solution of optimization, by adding polyvinyl alcohol in protecting film liquid to improve the biocompatibility and degradability of protecting film or coating.The ultraviolet protection method that the technical program provides has the advantages that Easy dosing, preparation and easy to use, package or the shielding ultraviolet rays in such a way that liquid is coated with and to form protective coating can be carried out by molding protecting film, protecting film or coating are high to the rejection rate of ultraviolet light, there is higher light transmittance simultaneously, fully meet requirement of the current packaging material field to transparency and visibility.
Description
Technical field
The present invention relates to photocatalytic pollution control fields, more particularly to a kind of ultraviolet protection side based on composite film material
Method.
Background technology
The one kind of ultraviolet light as light pollution, can not only damage health, additionally it is possible to by destroying in organic material
Covalent bond causes polymer, timber, dyestuff, pigment and semiconductor devices etc. that a series of deleterious breakdown effects occur.In scientific and technological people
Member actively researches and develops under the overall background of all kinds of ultraviolet protection materials and method, ultraviolet shielding material be increasingly becoming research hotspot it
One, the especially utilization of the thin polymer film with ultraviolet protection performance.
Mode more universal at present is by TiO2, ZnO, ZnS and CeO2Equal metal oxide nanoparticles add as screener
Enter polymer to prepare the polymer nanocomposite membrane material with resistance to ultraviolet radiation energy, although this kind of metal nanoparticle
Material has cheap, stable, low toxicity characteristic, but the extremely strong photocatalyst activity of these nano particles itself can also accelerate to polymerize
The photocatalytic degradation of object.
In contrast, graphene oxide (graphene oxide, GO) is without photocatalytic activity, light-permeable and with good
Ultraviolet absorption ability, it is compound that these advantageous properties make GO be put to uvioresistant as a kind of ultraviolet absorber more and more
In the research and development of material.Applying its power et al., (wet spinning prepares polyacrylonitrile/graphene oxide composite fibre and its uvioresistant performance
Study [J] New Chemical Materials, 2017,45 (1):115-117) prepared by polyacrylonitrile (acrylic fibers) fiber filled with GO
Fabric simultaneously tests its anti-ultraviolet property；Patent 107503120 also discloses that a kind of using cotton or silk as host material filling
The fabric with anti-ultraviolet property of GO.Although it is preferable that the above prior art can be such that fabric has by lower GO additive amounts
Anti-ultraviolet property, but be still difficult to reach ideal effect for the very thin composite film material of thickness.Moraes etc.
(Fabrication of transparent and ultraviolet shielding composite films based
on graphene oxideand cellulose acetate[J].Carbohydr Polym.2015,123:217-27) adopt
Composite membrane is prepared with graphene oxide filling acetate fiber and its performance is studied, the results showed that with GO adding proportions
Rising, uvioresistant performance is enhanced to a certain extent, in the case that GO additive amounts reach 0.5%wt, composite membrane pair
The rejection rate of ultraviolet light reaches 57%, however the performance is still difficult to meet application request, and increases GO additive amounts and remove
It can inevitably lead to cost and significantly rise outer, can also cause being remarkably decreased for film light transmittance, this and current food and doctor
The trend of high-transmittance and visibility that drug package Material Field is pursued is runed counter to.
Invention content
The ultraviolet protection method based on composite film material that the object of the present invention is to provide a kind of.
At present have much about the research and development of graphene oxide/nano-cellulose composite material report, these reported or
Disclosed technology contents although cover the mechanical property to composite material, thermal stability, barrier property, water resistance and
Many physical and chemical performance researchs such as conduction, heat conductivility and improvement, but rarely have the research for its anti-ultraviolet property and answer
With.The technical issues of generally being ignored for this, the present invention provide a kind of base on the basis of having carried out relevant nature research
In the ultraviolet protection method of graphene oxide/nano cellulose composite film material, specific technical solution is as follows：
(1) preparation of film liquid is protected：The suspension of graphene oxide is mixed with the colloidal solution of nano-cellulose, is controlled
The additive amount of the two, it is 5~10wt% to make the solid content of solution after mixing, and wherein graphene oxide accounts for the 0.05 of solution solid content
~0.1wt%；(at least 30min is stirred at room temperature, later ultrasonication in mixed solution progress homogeneous stir process
At least 2h), defoaming is stood later, obtains finely dispersed protection film liquid.
Nano-cellulose used by the technical program refers to sensu lato nano-cellulose, be a kind of diameter 1~
Rigid rod fiber element within the scope of 100nm, has the characteristics such as high-purity, high-crystallinity and high intensity, is mainly derived from plant
Object (such as timber, cotton fiber) can also derive from bacterium (such as acetobacter xylinum) and animal (such as tunicate).Nano-cellulose
Preparation method acid-hydrolysis method, enzymatic isolation method, mechanical homogeneous method, TEMPO oxidizing process etc. can be used.
Preferably, the suspension of above-mentioned graphene oxide be by by appropriate graphene oxide in distilled water ultrasonic disperse
At least 4h is obtained.
(2) preparation of protecting film：Protection film liquid is poured into mold, is carried out at drying again after being stored at room temperature to moisture evaporation
Reason, protecting film is obtained after moisture completely removes.
(3) package protection：Protecting film is directly wrapped up or is covered in body surface to be protected, to form the screen to ultraviolet light
It covers.
Package protection is carried out in the form of protecting film in addition to above-mentioned, it can also be straight by the protection film liquid prepared as needed
It connects and is coated on the body surfaces such as metal, fabric, plastics to form protective coating.
The ultraviolet protection method that the technical program provides has the advantages that Easy dosing, preparation and easy to use, can be with
Molding protecting film carries out package or the shielding ultraviolet rays in such a way that liquid is coated with and to form protective coating.In performance, protecting film
Or coating nearly reaches 100% to the rejection rate of ultraviolet light, while have good mechanical strength and higher light transmittance (>=
85%) requirement of the current packaging material field to transparency and visibility, is fully met.
On this basis, the present invention further provides more optimal technical solutions to increase the excellent of protecting film or coating
Characteristic, concrete scheme are as follows：
(1) preparation of film liquid is protected：The suspension of graphene oxide is mixed with the colloidal solution of nano-cellulose, will be mixed
Solution after conjunction does homogeneous stir process (at least 30min being stirred at room temperature, later ultrasonication at least 2h), is disperseed
Uniform mixed solution, is added a certain amount of polyvinyl alcohol into mixed solution again later, and high temperature is continuously stirring to uniformly mixed
(at least 30 minutes) stand cooling removing bubble at room temperature afterwards, obtain protection film liquid.Protect graphene oxide, nanometer in film liquid
The adding proportion of cellulose and polyvinyl alcohol is：Graphene oxide accounts for 0.05~0.1wt% of three's total addition level, polyvinyl alcohol
Account for 90~95wt% of three's total addition level.
(2) preparation of protecting film：It imports in mold, is stored at room temperature to moisture evaporation after protection film liquid is uniformly mixed
It carries out drying and processing again afterwards, protecting film is obtained after moisture completely removes.
(3) package protection：Protecting film is directly wrapped up or is covered in body surface to be protected, to form the screen to ultraviolet light
It covers.
Similarly, the protection film liquid being prepared by step (1) can also be directly coated at the objects such as metal, fabric, plastics
Body surface face is to form protective coating.
This improved technical solution further improves anti-on the basis of not influencing original barrier propterty and the high grade of transparency
Biocompatibility, hydrophily and the degradability of cuticula/coating are highly suitable as the antiultraviolet packing timber of food and medicine
Material, at the same it is also more environmentally-friendly.
Specific implementation mode
Embodiment 1
(1) preparation of film liquid is protected：The suspension of graphene oxide is mixed with the colloidal solution of nano-cellulose, is controlled
The additive amount of the two, it is 5% to make the total solid content of solution after mixing, and wherein graphene oxide accounts for the 0.08% of solution solid content；
At least 30min is stirred at room temperature in mixed solution, later ultrasonication at least 2h, finally stands defoaming, divided
Dissipate uniform protection film liquid.
Nano-cellulose in the step derives from plant fiber：Leaf wood pulpboard is soaked in water two days, then uses fiber
It discongests device and breaks up 5min under 15000rpm, repetition breaks up 3 times and obtains crude fibre suspension, then with high pressure homogenizer in 300bar
Homogeneous is multiple repeatedly under pressure；Crude fibre after homogenization is prepared into nano-cellulose using supersonic synergic TEMPO oxidizing process,
Product after reaction is collected by centrifugation and disperses to clean with deionized water, and repeated centrifugation, cleaning are for several times afterwards with retention point
The bag filter that son amount is 3500Da carries out dialysis removal of impurities, obtains nano-cellulose colloid.
Graphene oxide suspension in the step be by by graphene oxide with 2mg/mL solid contents in distilled water
Dispersion 4h is had children outside the state plan with ultrasonic cleaning machine to obtain.
(2) preparation of protecting film：Protection film liquid is poured into mold, 2h is dried at 80 DEG C after standing 2 days at room temperature,
Obtain protecting film product.
(3) package protection：Protecting film is directly wrapped in body surface to be protected.
Embodiment 2
Using the protection film liquid prepared by embodiment 1, it is directly coated at metal surface, stands to liquid and air-dries
Self-assembling formation protective coating afterwards.
Embodiment 3
(1) preparation of film liquid is protected：The suspension of graphene oxide is mixed with the colloidal solution of nano-cellulose, in room
Ultrasonication at least 2h again after the lower stirring at least 30min of temperature, obtains finely dispersed mixed solution, later again to mixed solution
It is middle that a certain amount of polyvinyl alcohol is added, at least 30min is continuously stirred at 90 DEG C, it is cold to wait for that solution is stood at room temperature after mixing
But bubble is removed, protection film liquid is obtained.The addition of graphene oxide, nano-cellulose and polyvinyl alcohol is controlled in preparation process
Amount, makes graphene oxide account for the 0.08wt% of three's total addition level, polyvinyl alcohol accounts for the 95wt% of three's total addition level.
(2) preparation of protecting film：Protection film liquid is poured into mold, 2h is dried at 80 DEG C after standing 2 days at room temperature,
Obtain protecting film product.
(3) package protection：Protecting film is directly wrapped in body surface to be protected.
Embodiment 4
Using the protection film liquid prepared by embodiment 3, it is directly coated at frosting, stands to liquid and air-dries
Self-assembling formation protective coating afterwards.
Performance test
Protecting film with different graphene oxide solid contents and progress are prepared using the scheme of embodiment 1 and embodiment 3
Anti-ultraviolet property, transparency and mechanical strength test.Wherein anti-ultraviolet property and transparency, which are tested, includes：250nm,
The rate of ultraviolet shield of protecting film and visible in 550nm is measured under the ultraviolet wavelength of 280nm, 300nm, 350nm, 380nm
The light transmittance of protecting film is measured under optical wavelength；Mechanical strength test uses the tensile strength and Young of stretching test measurement protecting film
Modulus.
Anti-ultraviolet property using the protecting film of 1 scheme of embodiment preparation is as shown in table 1：Pure nano-cellulose film has
Certain ultraviolet screening ability, and small amounts graphene (be respectively film solid content 0.05wt%, 0.08wt% and
Addition 0.1wt%) can be such that the ultraviolet protection performance of protecting film significantly improves, and be embodied in rate of ultraviolet shield apparent increase,
Reach 90% or more, it is individual even close to 100%.
The protecting film anti-ultraviolet property prepared using 3 scheme of embodiment is as shown in table 2：Pure polyvinyl alcohol film and nanometer
The ultraviolet screening ability of cellulose/polyvinyl alcohol composite membrane is poor, and small amounts graphene (is respectively film solid content
0.05wt%, 0.08wt% and 0.1wt%) addition equally greatly improve the rate of ultraviolet shield of protecting film, reach
90% or more, individually close to 100%.
Transparency test result is as shown in table 3：The protecting film prepared using above-mentioned two embodiment method, in 550nm
Light transmittance under visible wavelength slightly declines with the increase of graphene oxide additive amount, but remains at 80% or more,
With higher transparency.
The results are shown in Table 4 for mechanical strength test：Using the tensile strength and Young of protecting film prepared by 1 scheme of embodiment
Obviously higher than pure nano-cellulose film, the mechanical strength of the protecting film prepared using 3 scheme of embodiment is also apparently higher than modulus
Pure polyvinyl alcohol film and nano-cellulose/composite membrane of polyvinyl alcohol.The protecting film prepared by above-mentioned two embodiment method is equal
Good mechanical performance is embodied, the requirement of mechanical strength of packaging material is fully met.
Rate of ultraviolet shield of the protecting film that table 1 is prepared by 1 scheme of embodiment under different ultraviolet wavelengths
a：Solid content (wt%) of the graphene oxide in protecting film
b：Graphene oxide, i.e., pure nano-cellulose (NCC) film are not contained in protecting film
Rate of ultraviolet shield of the protecting film that table 2 is prepared by 3 scheme of embodiment under different ultraviolet wavelengths
a：Solid content (wt%) of the graphene oxide in protecting film
b：Pure polyvinyl alcohol (PVA) film without containing graphene oxide
c：Nano-cellulose/composite membrane of polyvinyl alcohol (PVA/NCC) film without containing graphene oxide
Light transmittance of the protecting film that table 3 is prepared by the scheme of embodiment 1 and 3 under 550nm visible wavelengths
a：Solid content (wt%) of the graphene oxide in protecting film
b：Graphene oxide, i.e., pure nano-cellulose (NCC) film are not contained in protecting film
c：Pure polyvinyl alcohol (PVA) film without containing graphene oxide
d：Nano-cellulose/composite membrane of polyvinyl alcohol (PVA/NCC) film without containing graphene oxide
4 tensile strength of table and Young's modulus measurement result
a：Solid content (wt%) of the graphene oxide in protecting film
b：Graphene oxide, i.e., pure nano-cellulose (NCC) film are not contained in protecting film
c：Pure polyvinyl alcohol (PVA) film without containing graphene oxide
d：Nano-cellulose/composite membrane of polyvinyl alcohol (PVA/NCC) film without containing graphene oxide
Claims (4)
1. a kind of ultraviolet protection method, it is characterised in that include the following steps：
(1) protection film liquid is prepared：Both the suspension of graphene oxide is mixed with the colloidal solution of nano-cellulose, control
Additive amount, it is 5~10wt% to make the solid content of solution after mixing, wherein graphene oxide account for solution solid content 0.05~
0.1wt%；Mixed solution is subjected to homogeneous stir process, defoaming is stood later, obtains finely dispersed protection film liquid；
(2) protecting film is prepared：Protection film liquid is poured into mold, drying and processing is carried out after being stored at room temperature to moisture evaporation again, waits for
Moisture obtains protecting film after completely removing；
(3) package protection：Protecting film is directly wrapped up or is covered in body surface to be protected.
2. ultraviolet protection method according to claim 1, it is characterised in that：It is directly carried out after the step (1)
Following processing：Protection film liquid is directly coated at body surface to be protected, stands to liquid self-assembling formation protective coating after air-drying.
3. a kind of ultraviolet protection method, it is characterised in that include the following steps：
(1) protection film liquid is prepared：The suspension of graphene oxide is mixed with the colloidal solution of nano-cellulose, to mixed
Solution does homogeneous stir process, and a certain amount of polyvinyl alcohol is added into mixed solution again after being uniformly dispersed, and high temperature continuously stirs
It mixes to bubble is removed then at standing cooling at room temperature after mixing, obtains protection film liquid；The graphene oxide, nanofiber
Element and adding proportion of the polyvinyl alcohol in protecting film liquid are：Graphene oxide accounts for 0.05~0.1wt% of three's total addition level,
Polyvinyl alcohol accounts for 90~95wt% of three's total addition level；
(2) protecting film is prepared：Protection film liquid is poured into mold, drying and processing is carried out after being stored at room temperature to moisture evaporation again, waits for
Moisture obtains protecting film after completely removing；
(3) package protection：Protecting film is directly wrapped up or is covered in body surface to be protected.
4. ultraviolet protection method according to claim 3, it is characterised in that：It is directly carried out after the step (1)
Following processing：Protection film liquid is directly coated at body surface to be protected, stands to liquid self-assembling formation protective coating after air-drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810562026.3A CN108659267B (en) | 2018-06-04 | 2018-06-04 | A kind of ultraviolet protection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810562026.3A CN108659267B (en) | 2018-06-04 | 2018-06-04 | A kind of ultraviolet protection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108659267A true CN108659267A (en) | 2018-10-16 |
| CN108659267B CN108659267B (en) | 2019-07-26 |
Family
ID=63774969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810562026.3A Active CN108659267B (en) | 2018-06-04 | 2018-06-04 | A kind of ultraviolet protection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108659267B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824916A (en) * | 2019-02-19 | 2019-05-31 | 湖南工程学院 | A kind of composite hydrogel, compound water congealing glue film and its preparation method and application |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH026847A (en) * | 1988-06-27 | 1990-01-11 | Tokyo Organ Chem Ind Ltd | Coloring matter adsorbent and production thereof |
| CN103540203A (en) * | 2012-07-13 | 2014-01-29 | 上海立昌环境工程有限公司 | Degradable multifunctional protective film |
| CN106397841A (en) * | 2016-08-31 | 2017-02-15 | 朱春英 | High-barrier biomaterial and preparation method thereof |
| CN107312248A (en) * | 2017-08-22 | 2017-11-03 | 安徽松泰包装材料有限公司 | A kind of high-barrier antibacterial polypropylene film |
| CN108059727A (en) * | 2017-12-21 | 2018-05-22 | 成都新柯力化工科技有限公司 | The heatpiston's mulch and preparation method of a kind of black coating |
-
2018
- 2018-06-04 CN CN201810562026.3A patent/CN108659267B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH026847A (en) * | 1988-06-27 | 1990-01-11 | Tokyo Organ Chem Ind Ltd | Coloring matter adsorbent and production thereof |
| CN103540203A (en) * | 2012-07-13 | 2014-01-29 | 上海立昌环境工程有限公司 | Degradable multifunctional protective film |
| CN106397841A (en) * | 2016-08-31 | 2017-02-15 | 朱春英 | High-barrier biomaterial and preparation method thereof |
| CN107312248A (en) * | 2017-08-22 | 2017-11-03 | 安徽松泰包装材料有限公司 | A kind of high-barrier antibacterial polypropylene film |
| CN108059727A (en) * | 2017-12-21 | 2018-05-22 | 成都新柯力化工科技有限公司 | The heatpiston's mulch and preparation method of a kind of black coating |
Non-Patent Citations (1)
| Title |
|---|
| 玉荣荣等: "石墨烯复合纤维与纺织品的功能", 《染整技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824916A (en) * | 2019-02-19 | 2019-05-31 | 湖南工程学院 | A kind of composite hydrogel, compound water congealing glue film and its preparation method and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108659267B (en) | 2019-07-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Abdalkarim et al. | Sheet-like cellulose nanocrystal-ZnO nanohybrids as multifunctional reinforcing agents in biopolyester composite nanofibers with ultrahigh UV-shielding and antibacterial performances | |
| Hu et al. | Fabrication of highly transparent and multifunctional polyvinyl alcohol/starch based nanocomposite films using zinc oxide nanoparticles as compatibilizers | |
| Goudarzi et al. | Preparation of ecofriendly UV-protective food packaging material by starch/TiO2 bio-nanocomposite: Characterization | |
| Sadeghifar et al. | Cellulose-lignin biodegradable and flexible UV protection film | |
| Pereda et al. | Polyelectrolyte films based on chitosan/olive oil and reinforced with cellulose nanocrystals | |
| CN104926156B (en) | A kind of preparation method and its product of Transparent persistence type antifog glass | |
| Robles et al. | Self-bonded composite films based on cellulose nanofibers and chitin nanocrystals as antifungal materials | |
| Zhou et al. | Electrospun polyethylene oxide/cellulose nanocrystal composite nanofibrous mats with homogeneous and heterogeneous microstructures | |
| Irvin et al. | Mechanical reinforcement and thermal properties of PVA tricomponent nanocomposites with chitin nanofibers and cellulose nanocrystals | |
| Yue et al. | Comparative properties of cellulose nano-crystals from native and mercerized cotton fibers | |
| Mujtaba et al. | Novel, multifunctional mucilage composite films incorporated with cellulose nanofibers | |
| CN106049053B (en) | A kind of modified cellulose nanofibrils solution and its aqueous high molecular coating of modification | |
| Li et al. | Reduction of the water wettability of cellulose film through controlled heterogeneous modification | |
| Hou et al. | Characterization and property investigation of novel eco‐friendly agar/carrageenan/TiO2 nanocomposite films | |
| Jia et al. | Effects of cellulose nanofibrils/graphene oxide hybrid nanofiller in PVA nanocomposites | |
| CN105672023A (en) | Cellulose fiber assembly and production method for same, fibrillated cellulose fiber and production method for same, and cellulose fiber complex | |
| CN105672014A (en) | Preparation method of super-hydrophobic magnetic nano-crystalline cellulose paper | |
| Yu et al. | Properties of low methoxyl pectin‐carboxymethyl cellulose based on montmorillonite nanocomposite films | |
| CN112795035A (en) | Cellulose/aramid nano-fiber composite membrane and preparation method and application thereof | |
| Li et al. | Transparent and ultra-tough PVA/alkaline lignin films with UV shielding and antibacterial functions | |
| Liu et al. | Incorporation of oxidized debranched starch/chitosan nanoparticles for enhanced hydrophobicity of corn starch films | |
| CN105200561B (en) | Method for preparing polyvinyl alcohol nanofibers by taking polyglutamic acid hydrogel as bridge | |
| CN108659267B (en) | A kind of ultraviolet protection method | |
| Alboofetileh et al. | Effect of nanoclay and cross‐linking degree on the properties of alginate‐based nanocomposite film | |
| Shao et al. | Transparent and UV-absorbing nanocellulose films prepared by directly dissolving microwave liquefied bamboo in TBAA/DMSO co-solvent system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: No.9, 13th Street, economic and Technological Development Zone, Binhai New Area, Tianjin Patentee after: Tianjin University of Science and Technology Address before: 300222 No. 1038 South Dagu Road, Tianjin, Hexi District Patentee before: Tianjin University of Science and Technology |
|
| CP02 | Change in the address of a patent holder |