CN109321989A - A kind of polymer melt and the polymer melt conveying technique - Google Patents
A kind of polymer melt and the polymer melt conveying technique Download PDFInfo
- Publication number
- CN109321989A CN109321989A CN201811335503.9A CN201811335503A CN109321989A CN 109321989 A CN109321989 A CN 109321989A CN 201811335503 A CN201811335503 A CN 201811335503A CN 109321989 A CN109321989 A CN 109321989A
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- China
- Prior art keywords
- melt
- polymer melt
- melting point
- low
- point polyester
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- 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.)
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Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D13/00—Complete machines for producing artificial threads
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/06—Feeding liquid to the spinning head
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D4/00—Spinnerette packs; Cleaning thereof
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/096—Humidity control, or oiling, of filaments, threads or the like, leaving the spinnerettes
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
Abstract
The present invention relates to a kind of polymer melt and the polymer melt conveying techniques.The polymer melt includes the low-melting point polyester melt and 50-70% polymer melt two of 30-50%, and polymer melt two is the mixture of the terephthalic acid (TPA) of 55-65% and the ethylene glycol of 35-45%.Low-melting point polyester melt is made by the following method: binary acid and dihydric alcohol are configured to slurry；The oligomer of binary acid binary alcohol esters is obtained through over-churning；Oligomer is uniformly mixed progress ester exchange reaction with polyethers and obtains equal compound；Equal compound is mixed with chain extender to be obtained by polycondensation reaction.The present invention eliminates the drying process of low-melting point polyester, reduces production cost, while in turn ensuring the stability of product quality by the way that low-melting point polyester melt is added in typical polymerization melt.And the method that the present invention conveys is easy, obtained polymer melt has preferable degree of purity, stable fiber quality, and is discharged without waste material, has achieved the purpose that clean manufacturing, energy-saving and emission-reduction.
Description
Technical field
The present invention relates to a kind of polymer melt and the polymer melt conveying techniques.
Background technique
Currently, polymer melt in the market mainly passes through following several technological approaches preparations, first is that using different cross section shape
The polyester fiber of state or different performance carries out the repetition and continuous group of networks that induce with air by extending filament length direction
It closes or combines combined processing method to realize, generally using conventional spinning and stretching, high speed spinning or spin-drawing one step
Manufacturing procedure, processing method is there are manufacturing procedure complexity, and process flow is long, and process velocity is low, high production cost, low efficiency etc.
Shortcomings.
Summary of the invention
The purpose of the present invention is being directed to the above-mentioned problems in the prior art, it is molten to provide a kind of polymerization that quality is stable
Body.
Object of the invention can be realized by the following technical scheme: a kind of polymer melt, and the polymer melt includes
The low-melting point polyester melt and mass fraction that mass fraction is 30-50% are 50-70% polymer melt two, and polymer melt two is matter
Measure the mixture of the terephthalic acid (TPA) that score is 55-65% and the ethylene glycol that mass fraction is 35-45%.
The present invention eliminates the dried of low-melting point polyester by the way that low-melting point polyester melt is added in typical polymerization melt
Journey reduces production cost, while in turn ensuring the stability of product quality.
In above-mentioned polymer melt, low-melting point polyester melt is made by the following method: binary acid and dihydric alcohol are matched
Slurry is made；Slurry obtains the oligomer of binary acid binary alcohol esters through over-churning；Oligomer is uniformly mixed with polyethers carries out transesterification
Reaction obtains equal compound；Equal compound is mixed with chain extender obtains low-melting point polyester melt by polycondensation reaction.
Preferably, the mass ratio of binary acid and dihydric alcohol is 1:(0.8-1.5).
Preferably, the mass ratio of oligomer and polyethers is (1-3): 1.
The present invention also provides a kind of above-mentioned polymer melt conveying techniques, and the conveying technique includes the following steps: will be upper
Polymer melt is stated by delivery pump, successively passes through fondant filter, melt booster pump, melt cooler, melt distributing valve, melt
Distribution pipe is delivered to spinning manifold, is extruded into melt stream by metering pump, filament spinning component and the spinneret in spinning manifold, adopts
Synnema, last synnema winding shaping after oiling are cooled and solidified to obtain with cross air blasting.
The present invention first passes through fondant filter, main function before polyplant melt enters spinning production line；1.
It is the aggregated particle or impurity filtered off in melt；2. extend filament spinning component uses the time, melt guarantees after melt filtration
The load of filament spinning component is also effectively reduced in the degree of purity of melt, the quality of stable fibers, extends the service life of component；3. drop
Low cost of labor, homogenizes melt, since filter chamber volume is big, the residence time is long, and melt can be homogenized effectively.Due to molten
During transportation, melt constantly rubs with melt tube wall body, melt flow rate decline, and melt conveying pressure is also corresponding
Decline in order to keep the melt flow rate in transmission process to stablize, while guaranteeing that melt enters spinning manifold with constant pressure,
The present invention is equipped with booster pump after fondant filter.Polymer melt increases by pressurization pump pressure, and polymer segment extruding rubs
It wipes, a part of mechanical energy is converted to thermal energy, shows as melt pressure raising, and temperature increases；From the point of view of collateral security melt quality angle
Be it is unfavorable, the excessively high degradation that will increase melt of temperature influences spinning, therefore melt cooler is arranged after booster pump and adjusts
Spinning temperature.Again since polymer melt is non-newtonian flow fluid, there is speed for melt flows in the section in melt pipe
Gradient is spent, the melt temperature of a section each section and residence time are all different, in order to guarantee melt quality uniformly in melt
In the pipeline of transportation system, appropriate location is provided with melt distribution pipe (static mixer), mixes to pipeline each section melt
Close even match.In addition, melt stream is in the distance for leaving 10~15cm of spinning plate surface；Temperature is still very high, and mobility is preferable,
This section of distance is usually zone of silence, in case melt stream is disturbed, it, must due to releasing a large amount of condensation heats in surrounding air
It must blow a cold wind over after silk goes out spinneret and carry out hot-fluid exchange, release heat to take and make melt stream solidificating fiber.Therefore originally
Invention is cooled and solidified using cross air blasting into synnema.
In above-mentioned polymer melt conveying technique, the temperature of spinning manifold is 270-275 DEG C.The temperature of spinning manifold is managed
It is required that very strict, the fusing point of terylene is 260 DEG C or so, 235 DEG C of softening point, the sharply thermal degradation of the generation more than 300 DEG C, so
Invention controls the temperature of spinning manifold at 270-275 DEG C.Temperature is excessively high, when spinning easy column cap, finished silk extends bigger than normal, temperature
Too low, when stretching, is also easy to produce lousiness and broken end, and operating difficulties, melt temperature often changes in process of production, is easy to produce fibre
Dimension dyeing is poor.
In above-mentioned polymer melt conveying technique, metering pump specification is 1.6ml/r~2.4ml/r.
In above-mentioned polymer melt conveying technique, filament spinning component is by sand cup, shell, spinneret, melt filtration material group
At.Filament spinning component acts on: 1. homogenize melt；2. impurity screening and aggregated particle, most of impurity and cohesion grain are by mistake
Filter filtering, but still with the presence of partial impurities, and filter screen and metal sand can effectively filter off small pellet in component, guarantee molten
Weight；3. improving melt rheological property.
The sand loading amount and spinneret of filament spinning component are spinning important parameters, the present invention preferably, spinneret aperture:
0.4mm~0.23mm, draw ratio: 2.8~3.3.
It is conveyed in technique in above-mentioned polymer melt, oil applying rate 0.3%-0.5%, the finishing oil pump specification used that oils is
0.08ml/r~0.12ml/r.
Preferably, being also added with the additive of 0.05-0.1% in oiling step, the additive is 2,2,6,6-
Tetramethyl -4- amino piperidine, 3- (3,5- di-tert-butyl-hydroxy phenyl) propionic acid and bis- (2,4- di-tert-butyl-phenyl) Ji Wusi
One of alcohol diphosphorous acid rouge is a variety of.
Compared with prior art, the present invention is eliminated low by the way that low-melting point polyester melt is added in typical polymerization melt
The drying process of melt polyester reduces production cost, while in turn ensuring the stability of product quality.And the present invention conveys
Method is easy, and obtained polymer melt has preferable degree of purity, stable fiber quality, and is discharged without waste material, reaches
Clean manufacturing, the purpose of energy-saving and emission-reduction.
Specific embodiment
The following is specific embodiments of the present invention, illustrates that technical scheme of the present invention will be further described, but this hair
It is bright to be not limited to these examples.
Embodiment 1
Binary acid and dihydric alcohol 1:1.2 in mass ratio are configured to slurry；Slurry obtains binary acid binary alcohol esters through over-churning
Oligomer；Oligomer is uniformly mixed progress ester exchange reaction with polyethers 2:1 in mass ratio and obtains equal compound；Equal compound and chain extension
Agent mixing obtains low-melting point polyester melt by polycondensation reaction.Take the above-mentioned low-melting point polyester melt and matter that mass fraction is 40%
Measuring score is that (polymer melt two is the terephthalic acid (TPA) that mass fraction is 60% to 60% polymer melt two and mass fraction is 40%
Ethylene glycol mixture), by delivery pump, successively by fondant filter, melt booster pump, melt cooler, melt point
It is delivered to the spinning manifold that temperature is 272 DEG C with valve, melt distribution pipe, the meter for being 2.0ml/r by the specification in spinning manifold
Amount pump, filament spinning component and spinneret are extruded into melt stream, cool and solidify to obtain synnema using cross air blasting, last synnema is after oiling
Winding shaping.Wherein, filament spinning component is made of sand cup, shell, spinneret, melt filtration material；The aperture of spinneret:
0.32mm, draw ratio: 3.0；Oil applying rate is 0.4%, and the finishing oil pump specification used that oils is 0.1ml/r, is also added in oiling step
Added with 0.08% 2,2,6,6- tetramethyl -4- amino piperidine of additive, 3- (3,5- di-tert-butyl-hydroxy phenyl) propionic acid.
Embodiment 2
Binary acid and dihydric alcohol 1:1.5 in mass ratio are configured to slurry；Slurry obtains binary acid binary alcohol esters through over-churning
Oligomer；Oligomer is uniformly mixed progress ester exchange reaction with polyethers 1:1 in mass ratio and obtains equal compound；Equal compound and chain extension
Agent mixing obtains low-melting point polyester melt by polycondensation reaction.Take the above-mentioned low-melting point polyester melt and matter that mass fraction is 50%
Measuring score is that (polymer melt two is the terephthalic acid (TPA) that mass fraction is 65% to 50% polymer melt two and mass fraction is 35%
Ethylene glycol mixture), by delivery pump, successively by fondant filter, melt booster pump, melt cooler, melt point
It is delivered to the spinning manifold that temperature is 270 DEG C with valve, melt distribution pipe, the meter for being 2.4ml/r by the specification in spinning manifold
Amount pump, filament spinning component and spinneret are extruded into melt stream, cool and solidify to obtain synnema using cross air blasting, last synnema is after oiling
Winding shaping.Wherein, filament spinning component is made of sand cup, shell, spinneret, melt filtration material；The aperture of spinneret:
0.4mm, draw ratio: 3.3；Oil applying rate is 0.3%, and the finishing oil pump specification used that oils is 0.12ml/r.
Embodiment 3
Binary acid and dihydric alcohol 1:0.8 in mass ratio are configured to slurry；Slurry obtains binary acid binary alcohol esters through over-churning
Oligomer；Oligomer is uniformly mixed progress ester exchange reaction with polyethers 3:1 in mass ratio and obtains equal compound；Equal compound and chain extension
Agent mixing obtains low-melting point polyester melt by polycondensation reaction.Take the above-mentioned low-melting point polyester melt and matter that mass fraction is 30%
Measuring score is that (polymer melt two is the terephthalic acid (TPA) that mass fraction is 55% to 70% polymer melt two and mass fraction is 45%
Ethylene glycol mixture), by delivery pump, successively by fondant filter, melt booster pump, melt cooler, melt point
It is delivered to the spinning manifold that temperature is 275 DEG C with valve, melt distribution pipe, the meter for being 1.6ml/r by the specification in spinning manifold
Amount pump, filament spinning component and spinneret are extruded into melt stream, cool and solidify to obtain synnema using cross air blasting, last synnema is after oiling
Winding shaping.Wherein, filament spinning component is made of sand cup, shell, spinneret, melt filtration material；The aperture of spinneret:
0.23mm, draw ratio: 2.8；Oil applying rate is 0.5%, and the finishing oil pump specification used that oils is 0.08ml/r.
The present invention eliminates the dried of low-melting point polyester by the way that low-melting point polyester melt is added in typical polymerization melt
Journey reduces production cost, while in turn ensuring the stability of product quality.And the method that the present invention conveys is easy, obtains
Polymer melt has preferable degree of purity, stable fiber quality, and is discharged without waste material, has reached clean manufacturing, energy conservation subtracts
The purpose of row.
This place embodiment is not exhaustive claimed midpoint of technical range and in embodiment technology
In scheme to single or multiple technical characteristics it is same replacement be formed by new technical solution, equally all the present invention claims
In the range of protection, and between the parameter that is related to of the present invention program if not otherwise specified, then there is no can not between each other
The unique combinations of replacement.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can do various modifications or supplement or is substituted in a similar manner to described specific embodiment, but simultaneously
Spirit or beyond the scope defined by the appended claims of the invention is not deviated by.
It is skilled to this field although present invention has been described in detail and some specific embodiments have been cited
For technical staff, as long as it is obvious for can making various changes or correct without departing from the spirit and scope of the present invention.
Claims (10)
1. a kind of polymer melt, which is characterized in that the polymer melt includes the low-melting point polyester that mass fraction is 30-50%
Melt and mass fraction are 50-70% polymer melt two, polymer melt two be mass fraction be 55-65% terephthalic acid (TPA) with
Mass fraction is the mixture of the ethylene glycol of 35-45%.
2. polymer melt according to claim 1, which is characterized in that low-melting point polyester melt is made by the following method:
Binary acid and dihydric alcohol are configured to slurry；Slurry obtains the oligomer of binary acid binary alcohol esters through over-churning；Oligomer and polyethers
It is uniformly mixed progress ester exchange reaction and obtains equal compound；Equal compound is mixed with chain extender obtains low-melting point polyester by polycondensation reaction
Melt.
3. polymer melt according to claim 2, which is characterized in that the mass ratio of binary acid and dihydric alcohol is 1:(0.8-
1.5)。
4. polymer melt according to claim 2, which is characterized in that the mass ratio of oligomer and polyethers is (1-3): 1.
5. a kind of conveying technique of polymer melt as described in claim 1, which is characterized in that the conveying technique includes such as
Lower step: by polymer melt as described in claim 1 by delivery pump, successively pass through fondant filter, melt booster pump, melt
Body cooler, melt distributing valve, melt distribution pipe are delivered to spinning manifold, by metering pump, the filament spinning component in spinning manifold
And spinneret is extruded into melt stream, cools and solidifies to obtain synnema, last synnema winding shaping after oiling using cross air blasting.
6. polymer melt conveying technique according to claim 5, which is characterized in that the temperature of spinning manifold is 270-275
℃。
7. polymer melt conveying technique according to claim 5, which is characterized in that metering pump specification be 1.6ml/r~
2.4ml/r。
8. polymer melt conveying technique according to claim 5, which is characterized in that filament spinning component is by sand cup, shell, spray
Filament plate, melt filtration material composition, the aperture of spinneret: 0.4mm~0.23mm, draw ratio: 2.8~3.3.
9. polymer melt conveying technique according to claim 5, which is characterized in that oil applying rate 0.3%-0.5% oils
Finishing oil pump specification used is 0.08ml/r~0.12ml/r.
10. the polymer melt conveying technique according to claim 5 or 9, which is characterized in that be also added in oiling step
The additive of 0.05-0.1%, the additive are 2,2,6,6- tetramethyl -4- amino piperidines, 3- (3,5- di-t-butyl -4-
Hydroxy phenyl) one of propionic acid and bis- (2,4- di-tert-butyl-phenyl) pentaerythrite diphosphorous acid rouge or a variety of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811335503.9A CN109321989A (en) | 2018-11-10 | 2018-11-10 | A kind of polymer melt and the polymer melt conveying technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811335503.9A CN109321989A (en) | 2018-11-10 | 2018-11-10 | A kind of polymer melt and the polymer melt conveying technique |
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| Publication Number | Publication Date |
|---|---|
| CN109321989A true CN109321989A (en) | 2019-02-12 |
Family
ID=65260802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811335503.9A Pending CN109321989A (en) | 2018-11-10 | 2018-11-10 | A kind of polymer melt and the polymer melt conveying technique |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113106625A (en) * | 2021-03-31 | 2021-07-13 | 山东道恩高分子材料股份有限公司 | Method for preparing degradable PBAT melt-blown non-woven fabric by one-step method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201485548U (en) * | 2009-08-13 | 2010-05-26 | 中国石油天然气集团公司 | System for continuously producing cation modified polyester melts and directly spinning polyester fibers |
| CN102409415A (en) * | 2011-11-09 | 2012-04-11 | 无锡市宇翔化纤工程设备有限公司 | Multi-head chemical fiber monofilament spinning assembly |
| CN102691130A (en) * | 2012-06-19 | 2012-09-26 | 福建经纬新纤科技实业有限公司 | Process for manufacturing fire-retardant polyester fiber |
| KR101360989B1 (en) * | 2013-01-04 | 2014-02-11 | 주식회사 효성 | Feeding device for oil |
| CN105063797A (en) * | 2015-07-16 | 2015-11-18 | 中国纺织科学研究院 | Method for preparing low-melting-point polyester composite fiber by adopting continuous polymerization and melt direct-spinning |
-
2018
- 2018-11-10 CN CN201811335503.9A patent/CN109321989A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201485548U (en) * | 2009-08-13 | 2010-05-26 | 中国石油天然气集团公司 | System for continuously producing cation modified polyester melts and directly spinning polyester fibers |
| CN102409415A (en) * | 2011-11-09 | 2012-04-11 | 无锡市宇翔化纤工程设备有限公司 | Multi-head chemical fiber monofilament spinning assembly |
| CN102691130A (en) * | 2012-06-19 | 2012-09-26 | 福建经纬新纤科技实业有限公司 | Process for manufacturing fire-retardant polyester fiber |
| KR101360989B1 (en) * | 2013-01-04 | 2014-02-11 | 주식회사 효성 | Feeding device for oil |
| CN105063797A (en) * | 2015-07-16 | 2015-11-18 | 中国纺织科学研究院 | Method for preparing low-melting-point polyester composite fiber by adopting continuous polymerization and melt direct-spinning |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113106625A (en) * | 2021-03-31 | 2021-07-13 | 山东道恩高分子材料股份有限公司 | Method for preparing degradable PBAT melt-blown non-woven fabric by one-step method |
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Application publication date: 20190212 |