CN106835678A - A kind of tube reducing glass fibre and preparation method thereof, composite - Google Patents

A kind of tube reducing glass fibre and preparation method thereof, composite Download PDF

Info

Publication number
CN106835678A
CN106835678A CN201710093582.6A CN201710093582A CN106835678A CN 106835678 A CN106835678 A CN 106835678A CN 201710093582 A CN201710093582 A CN 201710093582A CN 106835678 A CN106835678 A CN 106835678A
Authority
CN
China
Prior art keywords
tube reducing
glass fibre
glass
preparation
leaching
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.)
Pending
Application number
CN201710093582.6A
Other languages
Chinese (zh)
Inventor
张旺
蔡年进
朱本必
张志坚
顾佳俊
刘庆雷
张荻
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Jiaotong University
Original Assignee
Shanghai Jiaotong University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Jiaotong University filed Critical Shanghai Jiaotong University
Priority to CN201710093582.6A priority Critical patent/CN106835678A/en
Publication of CN106835678A publication Critical patent/CN106835678A/en
Pending legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/07Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
    • D06M11/11Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/50Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with hydrogen peroxide or peroxides of metals; with persulfuric, permanganic, pernitric, percarbonic acids or their salts
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/58Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides
    • D06M11/64Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides with nitrogen oxides; with oxyacids of nitrogen or their salts
    • D06M11/65Salts of oxyacids of nitrogen
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Reinforced Plastic Materials (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)

Abstract

The invention discloses a kind of tube reducing glass fibre and preparation method thereof, composite, the preparation method of wherein tube reducing glass fibre includes:S1, offer glass fabric, the acid leachate of configuration;S2, the glass fabric is immersed the leachate carry out leaching treatment;S3, the taking-up glass fiber cloth, and cleaned with distilled water, obtain the tube reducing glass fibre.The present invention controls the factors such as the time of leaching by configuring suitable leachate, obtains the tube reducing glass fibre of different-diameter;Obtained tube reducing glass fibre has larger specific surface area and good adsorption environment, can be used to load other materials, the composite that formation can be used flexibly and easily;It is convenient, cheap, flexibly and time-consuming short that preparation method has.

Description

A kind of tube reducing glass fibre and preparation method thereof, composite
Technical field
The present invention relates to Material Field, a kind of tube reducing glass fibre and preparation method thereof is related specifically to, and subtract using this Footpath glass fibre as carrier composite.
Background technology
Because glass fibre has intensity higher, in conventional, its enhancing for being usually used in composite.In recent years, due to Glass fibre have high thermal stability (>1200 DEG C), chemical inertness, high mechanical properties and low flowed friction, and its price is low Honest and clean the advantages of, the composite catalyst with glass fibre as carrier has obtained extensive concern and research.However, the ratio of glass fibre Surface area generally only has 0.5m2/ g, and the surface of glass fibre is smooth, causes during using glass fibre as carrier, catalyst Load capacity Deng material is less, is easily come off after load, causes the stability of composite catalyst poor.Therefore, glass fibre is improved Surface and improve the specific surface area of glass fibre, the load for catalyst and other material is extremely important.
At present, it is in fiberglass surfacing pore-creating that relatively common processing method is.
But, it is difficult to obtain suitable aperture in fiberglass surfacing pore-creating, for example, using chemical pore forming method can only The micropore of 1~2nm sizes is formed on surface, and the hole that the pore-creating of physics split-phase method is formed is too big, for film class loaded article Improvement is not protruded.
The content of the invention
The problem that the present invention is solved is the surface for improving glass fibre in the prior art and the ratio table for improving glass fibre The method of area is difficult.
To solve the above problems, the present invention provides a kind of preparation method of the tube reducing glass fibre based on percolation, including:
S1, offer glass fabric, the acid leachate of configuration;
S2, the glass fabric is immersed the leachate carry out leaching treatment;
S3, the taking-up glass fabric, and cleaned with distilled water, obtain the tube reducing glass fibre.
Further, step S1 also includes:
The glass fabric is pre-processed, to remove organic size on its surface.
Further, the pretreatment includes:
The glass fabric is heated into 1.5~2h at a temperature of 450~550 DEG C, the rate of heat addition is 6~12 DEG C/min;
Then, the glass fabric is cleaned by ultrasonic 1~1.5h;
Finally, the glass fibre is arranged in 60 DEG C of baking ovens and is dried.
Further, the glass fabric is E type alkali-free glass fiber cloths, and density is 80~120g/m2
Further, the formula of the acid leachate is:H2O2200ml/L, HF 400ml/L and HNO3 50ml/L。
Further, in step S2, the time of leaching is 15~60s.
Further, in step S3, distilled water cleaning is cleaned by ultrasonic for distilled water, and scavenging period is 1~2h;Then at 60 DEG C Under be dried.
Compared with prior art, technical scheme has advantages below:
1st, the present invention controls the factors such as the time of leaching by configuring suitable leachate, obtains the tube reducing of different-diameter Glass fibre;
2nd, the obtained tube reducing glass fibre of the present invention has larger specific surface area and good adsorption environment, can For load other materials, the composite that formation can be used flexibly and easily;
3rd, preparation method of the invention has convenient, cheap, flexibly and time-consuming short.
The present invention also provides a kind of tube reducing glass fibre obtained by the above method,
The time of leaching is 15s, and glass fiber diameter is 6.71~6.98 ± 0.01 μm;Or,
Leaching time is 30s, and glass fiber diameter is 6.05~6.42 ± 0.01 μm;Or,
Leaching time is 45s, and glass fiber diameter is 5.62~5.94 ± 0.01 μm;Or,
Leaching time is 60s, and glass fiber diameter is 2.46~2.79 ± 0.1 μm.
Compared with prior art, technical scheme has advantages below:
The glass fibre of the technical program has larger specific surface area and good adsorption environment, can be used to Load other materials, the composite that formation can be used flexibly and easily.
The present invention also provides a kind of composite, using above-mentioned tube reducing glass fibre as material support.
Further, vanadium dioxide film is loaded on tube reducing glass fibre.
Compared with prior art, technical scheme has advantages below:
In the composite that the technical program is provided, tube reducing glass fibre can effectively adhere to other materials as carrier, And because the reference area of tube reducing glass fibre is big, the adhesion amount of other materials can be increased, improve compound composite property.
Brief description of the drawings
Fig. 1 is the super depth of field (VHX) figure of embodiment of the present invention gained tube reducing glass fabric product;Wherein, a is original glass The VHX figures of glass fiber cloth, b is the VHX figures of the tube reducing glass fabric after present invention gained leaching 15s, and c is present invention gained drip The VHX figures of the tube reducing glass fabric after filter 30s, d is the VHX figures of the tube reducing glass fabric after present invention gained leaching 45s, E is the VHX figures of the tube reducing glass fabric after present invention gained leaching 60s.It can be seen that with the increasing of leaching time Plus, the diameter of glass fibre is gradually reduced;
Fig. 2 is the SEM figures of embodiment of the present invention gained tube reducing glass fabric product;Wherein, a is present invention gained leaching The SEM figures of the tube reducing glass fabric after 15s, b is the SEM figures of the tube reducing glass fabric after present invention gained leaching 30s, c It is the SEM figures of the tube reducing glass fabric after present invention gained leaching 45s, d is the tube reducing glass after present invention gained leaching 60s The SEM figures of fiber cloth;
Fig. 3 is the super depth of field (VHX) figure of embodiment of the present invention application product;Wherein, after a is for present invention gained leaching 15s Tube reducing glass fabric load vanadium dioxide film VHX figures, b is the tube reducing glass fibre after present invention gained leaching 30s The VHX figures of cloth load vanadium dioxide film, c is the tube reducing glass fabric load vanadium dioxide after present invention gained leaching 45s The VHX figures of film, d is the VHX figures of the tube reducing glass fabric load vanadium dioxide film after present invention gained leaching 60s;
Fig. 4 is the temperature-wavelength-reflectivity circle of equal altitudes of embodiment of the present invention application product, and measurement is different products Reflectivity with temperature and lambda1-wavelength change;Wherein, a is that tube reducing glass fabric after present invention gained leaching 15s is born The circle of equal altitudes of vanadium dioxide film is carried, b is the tube reducing glass fabric load vanadium dioxide film after present invention gained leaching 30s Circle of equal altitudes, c is the circle of equal altitudes that tube reducing glass fabric after present invention gained leaching 45s loads vanadium dioxide film, and d is this Tube reducing glass fabric after invention gained leaching 60s loads the circle of equal altitudes of vanadium dioxide film;
Fig. 5 is the total reflection intensity of the tube reducing glass fabric load vanadium dioxide film after present invention gained leaching 60s Vary with temperature figure.
Specific embodiment
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings to the present invention Specific embodiment be described in detail.
First embodiment
From 100g/m2E types alkali-free glass fiber cloth is raw material, glass fibre is arranged in Muffle furnace, with 8 DEG C/min Heating rate is incubated 2h to 500 DEG C at 500 DEG C, removes organic size on surface;Then by the glass fibre after calcining Cloth is cleaned by ultrasonic 1h, further removes organic size of remained on surface;The glass fibre after cleaning is finally arranged in 60 DEG C Baking oven in dry 2h, obtain pretreated glass fabric.
By H2O2200ml/L, HF 400ml/L and HNO350ml/L is configured to acid leachate, is placed in plastics trial jar.
Then pretreated glass fabric is divided in four groups of immersion leachates, four groups of leaching times of glass fabric Respectively 15s, 30s, 45s and 60s.
By the distilled water supersound washing 1h of the glass fabric after leaching~1.5h, to remove glass fabric surface attachment Leachate;It is subsequently placed in the baking oven of temperature 60 C and dries 2.5h, you can obtains described tube reducing glass fabric.
Be can be seen that with the increase of leaching time, the overall structure of glass fabric by the super depth of field (VHX) figure of Fig. 1 And be not corrupted, original fabric like structure is maintained substantially;And, there is no the phenomenons such as fracture in glass fiber yet.
By the SEM figures of Fig. 2 as can be seen that with the increase of leaching time, the diameter of glass fibre is gradually reduced, and drip The filter time is measured as respectively for the diameter of the tube reducing glass fibre of 15s, 30s, 45s and 60s:6.87±0.01μm、6.20± 0.01 μm, 5.80 ± 0.01 μm and 2.60 ± 0.1 μm.
Then, using sol-gel process, vanadium dioxide film is loaded on tube reducing glass fibre.When Fig. 3 is different leachings Between the tube reducing glass fabric that obtains load the super depth of field (VHX) figure of vanadium dioxide film, by the load vanadium dioxide film of Fig. 4 Heat-reflectivity that temperature-wavelength-reflectivity circle of equal altitudes afterwards can be seen that present invention application product is slow with temperature rising Reduce;Fig. 5 is to vary with temperature figure using the total reflection intensity of product, from reflectivity intensity and temperature linearity variation relation, can To be applied to temperature survey, because its temperature and reflectivity intensity are corresponded, and its mechanism is because of VO2Phase transformation causes , the speed of response is exceedingly fast, with volumetric expansion come the mercurial thermometer of thermometric compared with have a clear superiority.
Second embodiment
From 120g/m2E types alkali-free glass fiber cloth be carrier, glass fibre is arranged in Muffle furnace, with 12 DEG C/ Min heating rates are incubated 2.5h to 550 DEG C at 550 DEG C, remove organic size on surface;Then by the glass after calcining Glass fiber cloth is cleaned by ultrasonic 1.5h, further removes organic size of remained on surface;Finally by the glass fabric after cleaning It is placed in 60 DEG C of baking oven and dries 2.5h, obtains pretreated glass fabric.
By H2O2200ml/L, HF 400ml/L and HNO350ml/L is configured to acid leachate, is placed in plastics trial jar.
Then pretreated glass fabric is divided in four groups of immersion leachates, four groups of leaching times of glass fabric Respectively 15s, 30s, 45s and 60s.
By the distilled water supersound washing 2h of the glass fabric after leaching, to remove the leaching of glass fabric surface attachment Liquid;It is subsequently placed in the baking oven of temperature 60 C and dries 3h, you can obtains described tube reducing glass fabric.
By the super depth of field (VHX) figure and the SEM figure of product as can be seen that with the increase of leaching time, glass fibre it is straight Footpath is gradually reduced, and the diameter of four groups of glass fabrics is respectively:6.98±0.01μm、6.42±0.01μm、5.94±0.01μm With 2.79 ± 0.1 μm.
3rd embodiment
From 80g/m2E types alkali-free glass fiber cloth is carrier, glass fibre is arranged in Muffle furnace, with 6 DEG C/min Heating rate is incubated 1.5h to 450 DEG C at 450 DEG C, removes organic size on surface;Then by the glass fibers after calcining Wei Bu is cleaned by ultrasonic 1.5h, further removes organic size of remained on surface;Finally the glass fibre after cleaning is arranged in 2.5h is dried in 60 DEG C of baking oven, pretreated glass fabric is obtained.
By H2O2200ml/L, HF 400ml/L and HNO350ml/L is configured to acid leachate, is placed in plastics trial jar.
Then pretreated glass fabric is divided in four groups of immersion leachates, four groups of leaching times of glass fabric Respectively 15s, 30s, 45s and 60s.
By the distilled water supersound washing 1h of the glass fabric after leaching, to remove the leaching of glass fabric surface attachment Liquid;It is subsequently placed in the baking oven of temperature 60 C and dries 2h, you can obtains described tube reducing glass fabric.
By the super depth of field (VHX) figure and the SEM figure of product as can be seen that with the increase of leaching time, glass fibre it is straight Footpath is gradually reduced, and the diameter of four groups of glass fabrics is respectively:6.71±0.01μm、6.05±0.01μm、5.62±0.01μm With 2.46 ± 0.1 μm.
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art, are not departing from this In the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute The scope of restriction is defined.

Claims (10)

1. a kind of preparation method of the tube reducing glass fibre based on percolation, it is characterised in that including:
S1, offer glass fabric, the acid leachate of configuration;
S2, the glass fabric is immersed the leachate carry out leaching treatment;
S3, the taking-up glass fabric, and cleaned with distilled water, obtain the tube reducing glass fibre.
2. the preparation method of tube reducing glass fibre as claimed in claim 1, it is characterised in that step S1 also includes:
The glass fabric is pre-processed, to remove organic size on its surface.
3. the preparation method of tube reducing glass fibre as claimed in claim 2, it is characterised in that the pretreatment includes:
The glass fabric is heated into 1.5~2h at a temperature of 450~550 DEG C, the rate of heat addition is 6~12 DEG C/min;
Then, the glass fabric is cleaned by ultrasonic 1~1.5h;
Finally, the glass fibre is arranged in 60 DEG C of baking ovens and is dried.
4. the preparation method of tube reducing glass fibre as claimed in claim 1, it is characterised in that the glass fabric is E types Alkali-free glass fiber cloth, density is 80~120g/m2
5. the preparation method of tube reducing glass fibre as claimed in claim 1, it is characterised in that the formula of the acid leachate For:H2O2200ml/L, HF 400ml/L and HNO3 50ml/L。
6. the preparation method of tube reducing glass fibre as claimed in claim 5, it is characterised in that in step S2, the time of leaching It is 15~60s.
7. the preparation method of tube reducing glass fibre as claimed in claim 5, it is characterised in that in step S3, distilled water cleaning For distilled water is cleaned by ultrasonic, scavenging period is 1~2h;Then it is dried at 60 DEG C.
8. the tube reducing glass fibre that a kind of any described methods of claim 1-7 are obtained, it is characterised in that
The time of leaching is 15s, and glass fiber diameter is 6.71~6.98 ± 0.01 μm;Or,
Leaching time is 30s, and glass fiber diameter is 6.05~6.42 ± 0.01 μm;Or,
Leaching time is 45s, and glass fiber diameter is 5.62~5.94 ± 0.01 μm;Or,
Leaching time is 60s, and glass fiber diameter is 2.46~2.79 ± 0.1 μm.
9. a kind of composite, it is characterised in that the tube reducing glass fibre described in usage right requirement 8 is used as material support.
10. composite as claimed in claim 9, it is characterised in that load vanadium dioxide film on tube reducing glass fibre.
CN201710093582.6A 2017-02-21 2017-02-21 A kind of tube reducing glass fibre and preparation method thereof, composite Pending CN106835678A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710093582.6A CN106835678A (en) 2017-02-21 2017-02-21 A kind of tube reducing glass fibre and preparation method thereof, composite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710093582.6A CN106835678A (en) 2017-02-21 2017-02-21 A kind of tube reducing glass fibre and preparation method thereof, composite

Publications (1)

Publication Number Publication Date
CN106835678A true CN106835678A (en) 2017-06-13

Family

ID=59134792

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710093582.6A Pending CN106835678A (en) 2017-02-21 2017-02-21 A kind of tube reducing glass fibre and preparation method thereof, composite

Country Status (1)

Country Link
CN (1) CN106835678A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108169279A (en) * 2017-12-28 2018-06-15 电子科技大学 One kind is based on VO2The thermal conductivity of thin film measuring device and method of film
CN113416007A (en) * 2021-04-30 2021-09-21 平湖市欧迪雅厨卫设备有限公司 Glass fiber substrate composite material and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108169279A (en) * 2017-12-28 2018-06-15 电子科技大学 One kind is based on VO2The thermal conductivity of thin film measuring device and method of film
CN113416007A (en) * 2021-04-30 2021-09-21 平湖市欧迪雅厨卫设备有限公司 Glass fiber substrate composite material and preparation method thereof

Similar Documents

Publication Publication Date Title
Korhonen et al. Inorganic hollow nanotube aerogels by atomic layer deposition onto native nanocellulose templates
CN103708476B (en) A kind of preparation method of flexible silica aerogel
CN104710107A (en) Preparation method of porous glass fiber for water purification treatment
CN106835678A (en) A kind of tube reducing glass fibre and preparation method thereof, composite
CN106866148A (en) The SiC of SiC nanowire In-sltu reinforcementf/ SiC ceramic matrix composite material and preparation method thereof
CN102336434A (en) Preparation method of ordered macroporous materials with titanium dioxide inverse opal structures
CN106120012B (en) A kind of spontaneous heating polyester fiber and preparation method thereof
CN107365423A (en) A kind of hydrophobically modified method of cellulose
CN105126641B (en) A kind of flexible attapulgite membrane and preparation method thereof
CN106219989A (en) A kind of preparation method of Graphene modification composite glass fiber
CN101654836B (en) Manufacturing process of high silica glass fiber cloth
CN108486752B (en) Preparation method of nano knitted woolen fabric with self-cleaning function
CN104197675B (en) Box-type strand drying machine
CN103255612B (en) Production technique for high-silica fiber products
CN105017549B (en) A kind of PTFE/TiO2Functional membrane and its production method
CN106702718B (en) A kind of special wellability uvioresistant function fabric construction method of super abrasive
CN110172835A (en) Water-proof breathable fabric and preparation method thereof
CN104445355B (en) A kind of method of preparing transition metal oxide nano managed network with bacteria cellulose
CN105152213B (en) A kind of preparation method of molybdenum trioxide solution
CN103820882A (en) Inorganic oxide hollow fiber and preparation method thereof
CN106746751A (en) A kind of preparation method of the flexible antiacid glass-modified fiber of heatproof
CN109338742A (en) A kind of preparation method of wear-resisting antifouling luggage ribbon
CN107935406A (en) The preparation method of antireflecting silicon dioxide film
CN104004120A (en) Naphthoxazine-based polymer and naphthoxazine-based porous carbon fiber, and preparation methods thereof
CN205323553U (en) Online drying device of hollow fiber membrane

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20170613

WD01 Invention patent application deemed withdrawn after publication