CN108330680A - A kind of preparation method of modified polyphenyl thioether yarn - Google Patents
A kind of preparation method of modified polyphenyl thioether yarn Download PDFInfo
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- CN108330680A CN108330680A CN201810035185.8A CN201810035185A CN108330680A CN 108330680 A CN108330680 A CN 108330680A CN 201810035185 A CN201810035185 A CN 201810035185A CN 108330680 A CN108330680 A CN 108330680A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating 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
- D06M11/80—Treating 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 boron or compounds thereof, e.g. borides
- D06M11/82—Treating 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 boron or compounds thereof, e.g. borides with boron oxides; with boric, meta- or perboric acids or their salts, e.g. with borax
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating 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
- D06M11/32—Treating 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
- D06M11/50—Treating 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/188—Monocarboxylic acids; Anhydrides, halides or salts thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/30—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polycondensation products not covered by indexing codes D10B2331/02 - D10B2331/14
- D10B2331/301—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polycondensation products not covered by indexing codes D10B2331/02 - D10B2331/14 polyarylene sulfides, e.g. polyphenylenesulfide
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Artificial Filaments (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The present invention relates to a kind of preparation methods of modified polyphenyl thioether yarn, are formed by weaving with PPS fiber short fiber materials, fiber or yarn obtained after liquid phase treatment is modified processing.The present invention is directed to use a kind of PPS staple fibers being modified by chemical method to manufacture, the special fibre and thread material of high-temperature filter material technical need are adapted to, it improves media filtration efficiency while with good temperature tolerance, corrosion resistance and inoxidizability.
Description
Technical field：
This patent is related to a kind of preparation method of modified polyphenyl thioether (PPS) yarn, specifically a kind of to be carried out to PPS yarns
The technology of modification.
Background technology：
With the reinforcement of Environmental Protection in China dynamics, government further increases air contaminant treatment dynamics.Coal-burning power plant's discharge is made
For one of the main source of industrial gas emission, unprecedented attention is obtained, discharge standard is via original 30mg/Nm
3 are increased to 20~10mg/Nm3, some areas 5mg/Nm3.Major technique bag-type dusting skill as control dust particle
Art has become the major technique of coal-burning power plant's dust removal by filtration because having good dust emission control effect.According to statistics, it cuts
To the end of the year in 2016, China's capacity of installed generator was up to 16.5 hundred million kilowatts, wherein 9.4 hundred million kilowatts of coal electricity installed capacity；Generated energy reaches
6.0 trillion kilowatt hours, wherein about 3.9 trillion kilowatt hour of coal fired power generation amount, account for the 65.5% of gross generation.And in 9.4 hundred million kilowatts of coals
In electricity, about 30% uses bag-type dusting or electric bag composite dedusting.According to data, a relatively advanced 1000MW is large-scale coal-fired
In generating set, the filter bag of the filtrate 160 × 8000 needed 2000, filtrate area just up to more than 80,000 square metres, is thus seen,
China has had 5,000 ten thousand square metres of filtrate in the exhaust filtering task for carrying coal-burning boiler.And this part uses bag-type dusting
The dedusting filtering bag of technology is essentially all using the polyphenyl thioether filter material (PPS) or polyphenyl that can adapt to coal fire discharged operating mode
The composite filtering material of thioether and polytetrafluoroethylene (PTFE) (PTFE) makes, preferably to adapt in coal fired power generation, sulphur in flue gas emission,
The corrosive substances such as nitrogen compound.Have in terms of filtrate, filter bag production technology for the discharge standard for reaching stringenter
Superfine fibre, the skills such as fibrous material is compound, needle thorn is impregnated with Spunlace line compound use, overlay film, lotion, the closure of filter bag pin hole
Art is reformed.
Polyphenylene sulfide (PPS) fiber is widely used in the fiber with characteristics such as its good chemical resistance, high temperature resistants
It is currently used primarily in features filtering material, such as the boiler emission filtering of coal-burning power plant.But it still has at high temperature
Some antioxygenic properties are poor, while can not resist the erosion of the strong oxidizers such as the concentrated sulfuric acid, nitric acid, be easy to happen under high temperature deformation and
Melting, these all make it need according to the content of coal to determine filtrate as coal fired power generation filter bag, if it is sulfur content compared with
High coal quality then needs composite filtering material or MODIFIED PP S filtrates using PPS+PTFE.And composite filtering material is used to ensure dedusting
Under the premise of efficiency, weight will increased, and be bound to cause unnecessary resource consumption.
Modified polyphenyl thioether fibre poor is researched and developed for the inoxidizability of the high sulphur content and PPS of coping with coal-burning boiler
A kind of new material.The oxidation mechanism for analyzing polyphenylene sulfide is probably that phenyl ring forms altogether with sulphur atom on polyphenylene sulfide main chain
Yoke structure, and sulphur atom is not yet in saturation state, under high temperature with it is oxidized after can make phenyl ring and adjacent macromolecular that oxygen bridge occur
Branched and crosslinking, further oxidation can then make backbone breaking occur to degrade and release SO2.For this purpose, at using being modified
Reason method can obtain the fibrous material of more preferable performance, that is, be directed to the stronger sulphur atom of activity in phenylene sulfide structural and be saturated
Change is handled, and forms benzene sulfone group or sulfoxide radicals, and part retains sulphur atom, this poly- to ensure the flexibility of strand
Sulphur-partial cross-linked processing of boron-sulphur is carried out between diphenyl sulfide sulfone long-chain again so that fiber improves heat resistance, inoxidizability and resistance to
Chemical characteristic.Experimental test result shows：Modified PPS fibers not only remain the intrinsic mechanical properties of PPS, chemical stabilization
Property, except anti-flammability, heat insulating ability, have great promotion in terms of antioxygenic property, high temperature resistant, electrical property.
It is in particular in as follows：
Maximum operation (service) temperature：204 DEG C are promoted to 235 DEG C, in short-term 300 degree of temperature in use（240 hours）
Melting temperature：285 DEG C are promoted to no melting and melt contracting
Antioxygenic property（Strength retention）：The concentrated sulfuric acid；35% is promoted to 90%
Concentrated nitric acid：Fibrinolysis is promoted to 87%
High alkali liquid：95%
Hydrogen peroxide（30%）；44% is promoted to 95%
It is compared with the PTFE material of the title with " King " by above-mentioned testing result, it can be seen that pass through modification
PPS is most close in terms of heatproof, corrosion resistance and antioxygenic property, has prodigious performance to change compared with common PPS fibrous materials
It is kind, the meaning with certain economic value and promotion environmental protection.
Invention content：
Patent of the present invention is intended to, using a kind of PPS staple fibers manufacture being modified by chemical method, adapt to high-temperature filter material technology
The special fibre and thread material of demand, it improves filter while with good temperature tolerance, corrosion resistance and inoxidizability
Expect filter efficiency.
The present invention is using the scheme that purpose uses to reach above-mentioned：A kind of preparation side of modified polyphenyl thioether yarn
Method is formed by weaving with PPS fiber short fiber materials, fiber or yarn obtained after liquid phase treatment is modified processing,
Its method is：(1), it selects 2D/51mmPPS chopped strands that 20S single thread is made through RING SPINNING, and 20S/2 yarns is made through combining,
Winder is 1kg/, and to handle in terms of 1000 tubes, processing tank volume need to be 6000L, liquid phase treatment 5000L, percarbonic acid
Sodium is 200kg；(2), tube is placed in the steam heating tank with bottom entering type agitator again, it is molten that boride-acid saturation is added
Liquid is the oxidisability liquid phase treatment of medium composition, opens and stirs and heat, SODIUM PERCARBONATE is initially added into when being warming up to 75 degree, is controlled
Temperature processed is 80-90 degree, and is continuously stirred 3-6 hours；(3), inorganic agent is emptied, then plus water is stirred flushing tube, will
Tube taking-up is placed in centrifuge and is dehydrated, the drying moisture in drier that is placed on obtain product.
PPS yarns of the present invention are using length within the scope of 38-120mm, and PPS staple fiber of the crimpness more than 1/cm passes through
Yarn material made of RING SPINNING technique.
PPS yarns of the present invention refer to fineness in 5-35 English branch, single thread of the strength more than 500cn of yarn or by it
Yarn made of plying.
Liquid phase treatment fluid of the present invention refer to by the aqueous solution of compounding or single-oxidizer with certain oxidisability,
The liquid phase treatment fluid select Boratex or potassium borate boride and formic acid, acetic acid, sulfuric acid, hydrochloric acid any one form it is molten
Liquid, for pH value between 2-9, the modification time is between 3-6 hours.
The chemical-resistant characteristic of MODIFIED PP S fiber yarns of the present invention shows as the nothing in concentrated nitric acid concentration is more than 55%
Dissolution phenomena, heat resistance shows as its decomposition temperature and is more than 500 degree, and is higher than its fusing point, and oxidative resistance is embodied in
Oxygen content is less than or equal to 30%, and heating temperature is less than or equal to be used continuously 72 hours in the case of 300 degrees Celsius, and strength is kept
Rate is more than 80%.
Selection line even density of the present invention, the good polyphenylene sulfide fibre of fracture strength comb spinning process by tradition,
It is spun into item and does uniform single thread or folded yarn, then change single thread or folded yarn by chemical mode poly-p-phenylene sulfide ether fiber
Property, it had both been directed to the stronger sulphur atom of activity in phenylene sulfide structural and has carried out saturation processing, and formed it into benzene sulfone group or sulfoxide
Group, and part retains sulphur atom and carries out sulphur-boron-again between this polyphenylene sulfide sulfone long-chain to ensure the flexibility of strand
The partial cross-linked processing of sulphur, making that treated, fiber improves heat resistance, inoxidizability and chemical resistance.
Yarn of the present invention refers to the single thread or folded yarn of yarn count 5S~30S by made from traditional spinning technique;
Single 400~600 twirls of the twist/m, the twist direction of yarn do not limit twist direction；Its yarn linear density is 800dtex~5000dtex's
More plying sewing threads.The ultimate strength 1500cn of its finished product has preferable fracture strength and good temperature tolerance, corrosion-resistant
Property and inoxidizability and by thermal stability, while there is pin hole to block function of self closing, the filter efficiency of filter bag can be improved.
The yarn that the present invention is formed by weaving with PPS fiber short fiber materials is made after liquid phase treatment is modified processing
With good inoxidizability, the fiber or yarn of heat resistance and chemical resistance.It can be used for by modified fiber or yarn
The processing of the dust removal and filtration cloth bag of coal-fired plant boiler and the making of base fabric and sewing thread.Its feature protruded is good heat-resisting
Property and corrosion resistance the service life of dust settling pocket can be improved while ensureing filter efficiency, and mitigate dust settling pocket itself weight
Amount.
Specific implementation mode
Embodiment：For the content of invention is expanded on further, the present invention can be illustrated by case study on implementation in detail below.
Step 1, the preparation of yarn select 2D/51mmPPS chopped strands that 20S single thread is made through RING SPINNING, and through plying
20S/2 yarns are made, winder is 1kg/.
Step 2 has tube in the steam heating tank of bottom entering type agitator as 6000L, and total treating capacity is 1000
A/tank.
Step 3 configures treatment fluid in another modulation tank, and specific method is the acetic acid solution 45% by Boratex
Middle dissolving simultaneously forms saturation dissolving, and solution total amount is 5000L, and it is 2.0 that hydrochloric acid, which is added, and adjusts pH value.Simultaneously by 200kg percarbonic acids
The top charge door side that sodium is placed in heating tank is spare.
The solution configured is moved into through delivery pump in yarn treatment tank, opens stirring and heating, control temperature by step 4
For 80-90 degree.SODIUM PERCARBONATE is initially added into when being warming up to 75 degree, adding speed 100kg/h is continuously added to end.It
After continuously stir 6 hours, and keep temperature.
Treatment fluid is put into recycling can by step 5 after reaction, and then plus water is stirred flushing.Tube is taken out
It is placed in centrifuge and is dehydrated.The drying moisture in drier that is placed on obtain product.
The yarn property made from the above method is as follows：
1, physical property is：Yarn breakage intensity is more than 1500cn, and elongation at break is less than 25%, and percent thermal shrinkage is less than 3%.
2, temperature tolerance：Without melting under 300 degrees Celsius, melt contracting.
3, chemical-resistance（85 DEG C, strength retention for 24 hours）：
The concentrated sulfuric acid（98%）：More than 90%,
Concentrated nitric acid（60%）：More than 87%
Hydrogen peroxide（30%）：More than 95%.
Claims (5)
1. a kind of preparation method of modified polyphenyl thioether yarn, it is characterised in that：It is formed by weaving with PPS fiber short fiber materials
, fiber or yarn obtained after liquid phase treatment is modified processing, method is：(1), 2D/51mmPPS is selected to be chopped
20S single thread is made through RING SPINNING in fiber, and 20S/2 yarns are made through combining, and winder is 1kg/, to handle 1000 tubes
Meter, processing tank volume need to be 6000L, liquid phase treatment 5000L, SODIUM PERCARBONATE 200kg；(2), being again placed in tube has
In the steam heating tank of bottom entering type agitator, the oxidisability liquid phase processing that boride-acid saturated solution is medium composition is added
Agent opens and stirs and heat, is initially added into SODIUM PERCARBONATE when being warming up to 75 degree, controlled at 80-90 degree, and continuously stirs
3-6 hours；(3), inorganic agent is emptied, then plus water is stirred flushing tube, and tube taking-up is placed in centrifuge and is taken off
Water, the drying moisture in drier that is placed on obtain product.
2. a kind of preparation method of modified polyphenyl thioether yarn according to claim 1, it is characterised in that：PPS yarns are
Using length within the scope of 38-120mm, PPS staple fiber of the crimpness more than 1/cm is former through yarn made of RING SPINNING technique
Material.
3. a kind of preparation method of modified polyphenyl thioether yarn according to claim 1, it is characterised in that：The PPS
Yarn refers to fineness in 5-35 English branch, single thread of the strength more than 500cn or the yarn made of its plying of yarn.
4. a kind of preparation method of modified polyphenyl thioether yarn according to claim 1, it is characterised in that：The liquid phase
Treatment fluid refers to by the aqueous solution of compounding or single-oxidizer with certain oxidisability, and the liquid phase treatment fluid selects boric acid
The solution of sodium or potassium borate boride and formic acid, acetic acid, sulfuric acid, hydrochloric acid any one composition, pH value change between 2-9
Property processing time be 3-6 hours between.
5. a kind of preparation method of modified polyphenyl thioether yarn according to claim 1, it is characterised in that：The modification
The chemical-resistant characteristic of PPS fiber yarns shows as showing as it without dissolution phenomena, heat resistance in concentrated nitric acid concentration is more than 55%
Decomposition temperature is more than 500 degree, and is higher than its fusing point, and oxidative resistance is embodied in is less than or equal to 30% in oxygen content, heating temperature
It is used continuously 72 hours in the case of less than or equal to 300 degrees Celsius, strength retention is more than 80%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810035185.8A CN108330680A (en) | 2018-01-15 | 2018-01-15 | A kind of preparation method of modified polyphenyl thioether yarn |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810035185.8A CN108330680A (en) | 2018-01-15 | 2018-01-15 | A kind of preparation method of modified polyphenyl thioether yarn |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110184811A (en) * | 2019-04-25 | 2019-08-30 | 四川安费尔高分子材料科技有限公司 | A kind of polyphenylene sulfide fibre and preparation method thereof of the anti-shrink under ignition |
| CN111979627A (en) * | 2020-05-12 | 2020-11-24 | 江苏百护纺织科技有限公司 | Flame-retardant yarn, fabric, garment and flame-retardant work garment |
| CN112080930A (en) * | 2020-09-24 | 2020-12-15 | 福州大学 | Method for rapidly preparing polyphenylene sulfone sulfoxide fiber through liquid-phase oxidation at normal temperature and normal pressure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1989177A (en) * | 2004-07-23 | 2007-06-27 | 东丽株式会社 | Polyarylene sulfide oxide, solid article and process for producing the same |
| CN105342043A (en) * | 2015-11-04 | 2016-02-24 | 中原工学院 | Composite fabric for thermal-insulation protective garment of fireman and preparation method of composite fabric |
| CN106336664A (en) * | 2016-09-22 | 2017-01-18 | 四川大学 | Self-repairing enhanced polyarylether composite material and preparation method thereof |
-
2018
- 2018-01-15 CN CN201810035185.8A patent/CN108330680A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1989177A (en) * | 2004-07-23 | 2007-06-27 | 东丽株式会社 | Polyarylene sulfide oxide, solid article and process for producing the same |
| CN105342043A (en) * | 2015-11-04 | 2016-02-24 | 中原工学院 | Composite fabric for thermal-insulation protective garment of fireman and preparation method of composite fabric |
| CN106336664A (en) * | 2016-09-22 | 2017-01-18 | 四川大学 | Self-repairing enhanced polyarylether composite material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| YONGPENG WANG等: "Preparation and Properties of Novel Boric Acid Modified Poly(aryl ethersulfone) Membranes", 《JOURNAL OF APPLIED POLYMER SCIENCE》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110184811A (en) * | 2019-04-25 | 2019-08-30 | 四川安费尔高分子材料科技有限公司 | A kind of polyphenylene sulfide fibre and preparation method thereof of the anti-shrink under ignition |
| CN111979627A (en) * | 2020-05-12 | 2020-11-24 | 江苏百护纺织科技有限公司 | Flame-retardant yarn, fabric, garment and flame-retardant work garment |
| CN111979627B (en) * | 2020-05-12 | 2021-07-20 | 江苏百护纺织科技有限公司 | Flame-retardant yarn, fabric, garment and flame-retardant work garment |
| CN112080930A (en) * | 2020-09-24 | 2020-12-15 | 福州大学 | Method for rapidly preparing polyphenylene sulfone sulfoxide fiber through liquid-phase oxidation at normal temperature and normal pressure |
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