CN106986988A - A kind of the concentrate prepolymerization technology of polyamide fibre 6 and its system - Google Patents
A kind of the concentrate prepolymerization technology of polyamide fibre 6 and its system Download PDFInfo
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- CN106986988A CN106986988A CN201710187967.9A CN201710187967A CN106986988A CN 106986988 A CN106986988 A CN 106986988A CN 201710187967 A CN201710187967 A CN 201710187967A CN 106986988 A CN106986988 A CN 106986988A
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- concentrate
- prepolymerization
- connecting shaft
- polyamide fibre
- cover plate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
- C08G69/14—Lactams
- C08G69/16—Preparatory processes
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyamides (AREA)
Abstract
The invention provides a kind of concentrate prepolymerization technology of polyamide fibre 6, step 1：Caprolactam monomer water extraction is dense to putting into concentrate finished pot (1) after 75~89%, and finished pot (1) is incubated, and holding temperature is 115~120 DEG C；Step 2：It is delivered to concentrate preheater (3) after concentrate is filtered and measured to preheat, preheating temperature is 160~175 DEG C；Step 3：Concentrate after preheating is delivered into heater (4) to be heated, heating-up temperature is 255~270 DEG C；Step 4：Prepolymerization is carried out to the concentrate after heating in prepolymerization kettle (5), the technique greatly accelerates the prepolymerized efficiency of the concentrate of polyamide fibre 6, present invention also offers a kind of concentrate prepolymerization system of polyamide fibre 6, tested viscosity can be sampled to the material in polyplant at any time, material information can be grasped in real time, the delayed of technique adjustment is avoided, the waste of raw material is in turn resulted in.
Description
Technical field
The present invention relates to the technical field of textile raw material polymerization process, more particularly to a kind of concentrate pre-polymerization of polyamide fibre 6
Close technique and its system.
Background technology
Pa-6 Polymerization is the polymer generated using caprolactam by raw material by open loop, poly- addition, polycondensation reaction,
And in chinlon 6 section production process, material caprolactam needs to carry out pre-polymerization in prepolymerization kettle.
Such as Application No.：201620767786.4 Chinese patent discloses a kind of concentrate prepolymerization device of polyamide fibre 6, should
Filter is provided with device, the filter includes two filter chambers of the using and the reserved.The delivery pump and described two filter chambers it
Between be additionally provided with the first three-way switch valve, be additionally provided between the charging measuring pump and described two filter chambers the second threeway switching
Valve, the three-way switch valve includes main flow road junction, first-class road junction, second road junction, the first valve control mechanism and the second valve
Gate control mechanism, first valve control mechanism is used to controlling break-make between first-class road junction and main flow road junction, and described the
Two valve control mechanisms are used to control the break-make between second road junction and main flow road junction.Pre-polymerization provided in this application is attached together
, it is necessary to know viscosity, it is necessary to chemically examine the ion being cut into putting and in the absence of viscosity tracing equipment, the time of information grasp
More than 20 hours, the technique adjustment time was seriously delayed, can cause the waste of raw material, while influenceing product quality.
In view of the above-mentioned problems, and for example Application No.：201420103763.4 Chinese patent disclose and a kind of be used for polyamide fibre 6
The prepolymerization kettle of section production, discharge nozzle is provided with reactor body bottom portion, and discharge nozzle is provided with the first viscosimeter；It is described
Measure tank top and be provided with drainpipe provided with second viscosity meter, bottom, draining valve is provided with the drainpipe；In the transverse pipe
Position of the position provided with gear pump, bypass rear in front of bypass is provided with the first valve.A kind of prepolymerization that the patent is provided is anti-
Kettle is answered to be detected by setting up the first viscosimeter and second viscosity meter to the viscosity of material in reactor, but in reactor
Material is not necessarily uniform, only the material viscosity of the flowing in reactor is measured by the viscosimeter of two discharging openings, institute
Obtain data less accurate, operating procedure can be caused a deviation, in addition when needing to be sampled detection to the material in reactor,
Also it is more inconvenient.
The content of the invention
Real-time tracing can not be carried out with the viscosity of material in prepolymerization present in prior art to overcome, grasped not
The Best Times of technique adjustment, the problems such as causing wastage of material, the invention provides a kind of concentrate prepolymerization technology of polyamide fibre 6
And its system.
Concrete technical scheme is as follows：
A kind of concentrate prepolymerization technology of polyamide fibre 6,
Step 1：Caprolactam monomer water extraction is dense to putting into concentrate finished pot after 75~89%, and finished pot is entered
Row insulation, and holding temperature is 115~120 DEG C；
Step 2：It is delivered to concentrate preheater after concentrate is filtered and measured to preheat, preheating temperature is
160~175 DEG C；
Step 3：Concentrate after preheating is delivered into heater to be heated, heating-up temperature is 255~270 DEG C；
Step 4：Prepolymerization is carried out to the concentrate after heating in prepolymerization kettle.
On this basis, prepolymerization kettle carries out prepolymerization, the pre-polymerization by steam to concentrate in the step 4
It is 270~275 DEG C or so to close the temperature in reactor, and pressure is 16~28kgf, and the reaction time is 7~10 hours.
Present invention also offers a kind of concentrate prepolymerization system of polyamide fibre 6, including finished pot, filter, preheater, heating
Device and prepolymerization kettle, the finished pot, filter, preheater, heater and prepolymerization kettle pass sequentially through delivery pump
It is connected, the porch of the preheater is provided with measuring pump, and the prepolymerization kettle bottom is provided with rotary flow guide device, institute
State rotary flow guide device exit and be provided with outlet valve, the outlet valve is provided with viscosimeter.
On this basis, the rotary flow guide device includes rotating rod and diversion component, and the rotating rod is hollow structure
And it is arranged on the underface of diversion component.
On this basis, the diversion component be hemispherical, the diversion component be hollow structure and be internally provided with every
Plate is divided into behaviour area and storage area, and the behaviour area and storage area are connected with rotating rod, and the is provided with above the behaviour area
One cover plate, first cover plate is fixedly connected with behaviour area and dividing plate, and the second cover plate, the storage are provided with above the storage area
Deposit and be provided with connecting tube below area, the connecting tube is connected with rotating rod.
On this basis, second cover plate includes closed cover and opening cover plate, and the closed cover is fixedly installed on
First half above storage area, and be fixedly connected with dividing plate, the opening cover plate is movably arranged on later half above storage area
Part, the closed cover is flexibly connected with opening cover plate.
On this basis, the behaviour area includes the first connecting shaft and the second connecting shaft, first connecting shaft and rotation
Rod is connected, and second connecting shaft is fixedly connected with the first cover plate of enclosed area upper surface, in second connecting shaft and dividing plate
Surface is fixedly connected.
On this basis, first connecting shaft is identical with the size of the second connecting shaft and is " L " type.
On this basis, first connecting shaft and the second connecting shaft are centrosymmetric setting.
On this basis, first connecting shaft is vertically arranged with rotating rod, between first connecting shaft and rotating rod
It is provided with torque spring.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, the invention provides a kind of concentrate prepolymerization technology of polyamide fibre 6, temperature when being incubated in step 1 to finished pot
It is 115~120 DEG C to spend scope；The temperature preheated in step 2 to concentrate is 160~175 DEG C；To concentrate in step 3
The temperature for being input into row heating is 255~270 DEG C.To the real-time control of temperature in prepolymerization technology step in this technique, and progressively
It is progressive, it can both ensure that the temperature in concentrate finished pot will not be too low, and then it is in particle to cause concentrate to separate out, influence is normal
Operation.It will not ensure that temperature is too high in tank again, cause material to gasify in concentrate conveying serious, cause to be fed not during charging
Foot.
2nd, present invention also offers a kind of concentrate prepolymerization system of polyamide fibre 6, including finished pot, filter, preheater, plus
Hot device and prepolymerization kettle, the finished pot, filter, preheater, heater and prepolymerization kettle pass sequentially through conveying
Pump is connected, and the porch of the preheater is provided with measuring pump, and the prepolymerization kettle bottom is provided with rotary flow guide device,
The rotary flow guide device exit is provided with outlet valve, and the outlet valve is provided with viscosimeter.The system can be at any time to poly-
The material attached together in putting is sampled tested viscosity, material information can be grasped in real time, it is to avoid technique adjustment it is delayed, and then
Cause the waste of raw material.
3rd, the diversion component in the present invention is hemispherical, and the diversion component is hollow structure and is internally provided with dividing plate point
For behaviour area and storage area, the behaviour area and storage area are connected with rotating rod, and the first lid is provided with above the behaviour area
Plate, first cover plate is fixedly connected with behaviour area and dividing plate, and the second cover plate, the storage area are provided with above the storage area
Lower section is provided with connecting tube, and the connecting tube is connected with rotating rod.The present invention is driven by the behaviour area in diversion component and stored
The cover plate in area is opened, and material storing is delivered in storage area by connecting tube after rotating rod carries out viscosity measurements, structure letter
List and feeding are uniform, may further ensure that the accuracy of Data Detection.
4th, the first connecting shaft in the present invention is identical with the size of the second connecting shaft and is " L " type, first connection
Axle and the second connecting shaft are centrosymmetric setting.Wherein the first connecting shaft identical with the second connecting shaft model is " L " type, significantly
Save connecting shaft to be taken up space, and can have been linked by torque spring, has been quick on the draw, and mechanical structure is simple, saves
Cost.
Brief description of the drawings
Fig. 1 is a kind of schematic flow sheet of the concentrate prepolymerization technology of polyamide fibre 6；
Fig. 2 is a kind of structural representation of the concentrate prepolymerization system of polyamide fibre 6；
Fig. 3 is a kind of sectional view of rotary flow guide device in concentrate prepolymerization system of polyamide fibre 6；
Fig. 4 is sectional view when rotary flow guide device works in a kind of concentrate prepolymerization system of polyamide fibre 6；
Fig. 5 is a kind of side view of diversion component in concentrate prepolymerization system of polyamide fibre 6；
Fig. 6 is a kind of top view of diversion component in concentrate prepolymerization system of polyamide fibre 6.
In figure, 1- finished pots；2- filters；3- preheaters；4- heaters；5- prepolymerization kettles；6- rotating flow guidances are filled
Put；7- outlet valves；21- measuring pumps；61- rotating rods；62- behaviour areas；63- storage areas；The connecting shafts of 621- first；622- second connects
Spindle；623- torque springs；The cover plates of 624- first；The cover plates of 631- second.
Embodiment
Below in conjunction with drawings and examples, the present invention will be described in further detail.It should be appreciated that described herein
Specific embodiment only to explain the present invention, is not intended to limit the present invention.
The present invention discloses a kind of concentrate prepolymerization technology of polyamide fibre 6, as shown in figure 1, comprising the following steps that：
Step 1：Caprolactam monomer water extraction is dense to putting into concentrate finished pot 1 after 75~89%, and to finished pot 1
It is incubated, and holding temperature is 115~120 DEG C, it is preferable that finished pot 1 is incubated by steam in the present invention, enters one
Preferably, the dense degree of caprolactam monomer water extraction can be 80%, 85% and 88% to step, and corresponding holding temperature is
116 DEG C, 118 DEG C and 120 DEG C.
Step 2：It is delivered to concentrate preheater 3 after concentrate is filtered and measured to preheat, preheating temperature is
160~175 DEG C, it is preferable that the present invention in concentrate is preheated by steam, wherein the temperature preheated can be 162 DEG C,
165 DEG C, 170 DEG C and 173 DEG C.
Step 3：Concentrate after preheating is delivered into heater 4 to be heated, heating-up temperature is 255~270 DEG C, preferably
Ground, the present invention is heated by the way that steam is further to concentrate, and the temperature of heating is 260 DEG C, 262 DEG C, 265 DEG C and 270
℃。
Step 4：Prepolymerization is carried out to the concentrate after heating in prepolymerization kettle 5, it is preferable that prepolymerization kettle
5 temperature carried out by steam to concentrate in prepolymerization, the prepolymerization kettle 5 are 270~275 DEG C or so, and pressure is
16~28kgf, and the reaction time is 7~10 hours, it is preferable that temperature in prepolymerization kettle 5 for 272 DEG C, 273 DEG C and
275 DEG C, pressure is 20kgf, 23kgf and 28kgf, and the reaction time is 7 hours, 8 hours and 10 hours.
To the real-time control of temperature in prepolymerization technology step in the present invention, and it is progressively progressive, it can both ensure concentrate
Temperature in finished pot 1 will not be too low, and then it is in particle, the normal operation of influence to cause concentrate to separate out.It will not ensure again in tank
Temperature is too high, causes material to gasify in concentrate conveying serious, under feeding when causing to feed.
It is corresponding with above-mentioned technique, present invention also offers a kind of concentrate prepolymerization system of polyamide fibre 6, as shown in Fig. 2
Including finished pot 1, filter 2, preheater 3, heater 4 and prepolymerization kettle 5, the finished pot 1, filter 2, preheater
3rd, heater 4 passes sequentially through delivery pump with prepolymerization kettle 5 and is connected, and the porch of the preheater 3 is provided with measuring pump 21,
Put caprolactam monomer water extraction is dense first into concentrate finished pot 1, and finished pot 1 is incubated, and pass through filter 2
Concentrate is filtered and measuring pump 21 concentrate is measured after concentrate preheater 3 be delivered to by delivery pump carried out
Preheating, after preheating, is delivered to heater 4 by concentrate and is heated, finally to the concentration after heating in prepolymerization kettle 5
Liquid carries out prepolymerization.Preferably, the bottom of prepolymerization kettle 5 in the present invention is provided with rotary flow guide device 6, and the rotation is led
Stream device 6 exit is provided with outlet valve 7, and the outlet valve 7 is provided with viscosimeter.
Preferably, as shown in Figures 3 and 4, the rotary flow guide device 6 in the present invention includes rotating rod 61 and diversion component, institute
Rotating rod 61 is stated to be hollow structure and be arranged on the underface of diversion component.The diversion component is hemispherical, such as the institutes of Fig. 5 and 6
Show, the diversion component is hollow structure and is internally provided with dividing plate and is divided into behaviour area 62 and storage area 63, the behaviour area 62
It is connected with storage area 63 with rotating rod 61, the top of behaviour area 62 is provided with the first cover plate 624, first cover plate 624
It is fixedly connected with behaviour area 62 and dividing plate, the top of storage area 63 is provided with the second cover plate 631, the lower section of storage area 63 is set
Connecting tube is equipped with, the connecting tube is connected with rotating rod 61.The material of storage area 63 is delivered to rotating rod 61 by connecting tube, rotation
Transfer rod 61 is provided with discharge valve and viscosimeter, and user direct to material according to demand can detect, or material is sampled
After detect.The present invention drives the cover plate of storage area 63 to open by the behaviour area 62 in diversion component, and by material storing in storage
Deposit area 63 and be delivered to by connecting tube after rotating rod 61 and carry out viscosity measurements, simple in construction and feeding is uniform, can further protect
Demonstrate,prove the accuracy of Data Detection.Second cover plate 631 includes closed cover and opening cover plate, and the closed cover is fixedly installed
First half in the top of storage area 63, and be fixedly connected with dividing plate, the opening cover plate is movably arranged on the top of storage area 63
Latter half, the closed cover is flexibly connected with opening cover plate.The behaviour area 62 includes the first connecting shaft 621 and second
Connecting shaft 622, first connecting shaft 621 is connected with rotating rod 61, and the of second connecting shaft 622 and enclosed area upper surface
One cover plate 624 is fixedly connected, and second connecting shaft 622 is fixedly connected with dividing plate inner surface.First connecting shaft 621 and
The size of two connecting shafts 622 is identical and is " L " type.First connecting shaft 621 is centrosymmetric with the second connecting shaft 622 and set
Put.First connecting shaft 621 is vertically arranged with rotating rod 61, is provided between first connecting shaft 621 and rotating rod 61
Torque spring 623.Rotating rod 61 is rotated, rotating rod 61 drives torque spring 623 to be rotated and stored power, and torque spring 623 exists
The first connecting shaft 621 is pulled down during storing power, when the first connecting shaft 621 declines to a certain extent, can be connected to second
Axle 622 is extruded and linked, and the second connecting shaft 622 is fixedly connected with the first cover plate 624 and dividing plate, in the second connecting shaft
While 622 rotation, the first cover plate 624 and dividing plate and the concomitant rotation of the second cover plate 631.The system can be filled to polymerization at any time
Material in putting is sampled tested viscosity, material information can be grasped in real time, it is to avoid technique adjustment it is delayed, in turn result in
The waste of raw material.
A kind of concentrate prepolymerization system work process of polyamide fibre 6 of the present invention is as follows：It is first that caprolactam monomer water extraction is dense
Put to 75~89% into concentrate finished pot 1, and finished pot 1 is incubated, holding temperature is 115~120 DEG C, and is passed through
Filter 2 is filtered to concentrate and measuring pump 21 concentrate is measured after by delivery pump be delivered to concentrate preheat
Device 3 is preheated, and preheating temperature is 160~175 DEG C, after preheating, concentrate is delivered into heater 4 and heated, heating temperature
Spend for 255~270 DEG C, prepolymerization, prepolymerization kettle 5 finally are carried out to the concentrate after heating in prepolymerization kettle 5
In temperature be 270~275 DEG C or so, pressure be 16~28kgf, and the reaction time be 7~10 hours.In prepolymerized process
In, the present invention can be sampled detection viscosity by rotary flow guide device 6 to the material in reactor 5, rotate rotating rod 61,
Rotating rod 61 drives torque spring 623 to be rotated and stored power, and torque spring 623 is during power is stored by the first connecting shaft
621 drop-downs, when the first connecting shaft 621 declines to a certain extent, can be extruded and be linked to the second connecting shaft 622,
Second connecting shaft 622 is fixedly connected with the first cover plate 624 and dividing plate, while the second connecting shaft 622 is rotated, the first cover plate
624 and dividing plate and the concomitant rotation of the second cover plate 631.When second cover plate 631 is tilted, opening cover plate and the envelope of the second cover plate 631
Cover plate flexible connection is closed, opening cover plate is tilted to the side of opening cover plate, i.e., open the opening of storage area 63, can be deposited
Store up the material of pre-sampling.It is further preferred that rotating rod 61 can continue rotation, the second connecting shaft 622 and the first connecting shaft 621
Offset, it is that rotary shaft is rotated with rotating rod 61 to drive diversion component, and more uniform collection material, due to behaviour area 62
It is separated by with storage area 63 by dividing plate, therefore material will not spread in behaviour area 62, the material of storage area 63 is defeated by connecting tube
Rotating rod 61 is delivered to, rotating rod 61 is provided with discharge valve and viscosimeter, and user direct to material according to demand can detect,
Or detected after being sampled to material.After the completion of to be sampled, discharge valve is closed, rotating rod 61 is unclamped, torque spring 623 stores power by the
One connecting shaft 621 is popped into position or more than original position, i.e., tilted to opposite side, and the opening cover plate of the second cover plate 631 returns back to original position,
And block the opening of storage area 63, during avoiding sampling, feed blocking storage area 63.
The preferred embodiments of the present invention have shown and described in described above, as previously described, it should be understood that not office of the invention
Be limited to form disclosed herein, be not to be taken as the exclusion to other embodiment, and available for various other combinations, modification and
Environment, and can be changed in invention contemplated scope described herein by the technology or knowledge of above-mentioned teaching or association area
It is dynamic., then all should be appended by the present invention and the change and change that those skilled in the art are carried out do not depart from the spirit and scope of the present invention
In scope of the claims.
Claims (10)
1. a kind of concentrate prepolymerization technology of polyamide fibre 6, it is characterised in that：
Step 1：Caprolactam monomer water extraction is dense to putting into concentrate finished pot (1) after 75~89%, and to finished pot (1)
It is incubated, and holding temperature is 115~120 DEG C；
Step 2：It is delivered to concentrate preheater (3) after concentrate is filtered and measured to preheat, preheating temperature is 160
~175 DEG C；
Step 3：Concentrate after preheating is delivered into heater (4) to be heated, heating-up temperature is 255~270 DEG C；
Step 4：Prepolymerization is carried out to the concentrate after heating in prepolymerization kettle (5).
2. the concentrate prepolymerization technology of a kind of polyamide fibre 6 according to claim 1, it is characterised in that：Pre-polymerization in the step 4
Close reactor (5) and the temperature in prepolymerization, the prepolymerization kettle (5) is carried out to concentrate for 270~275 DEG C by steam
Left and right, pressure is 16~28kgf, and the reaction time is 7~10 hours.
3. a kind of concentrate prepolymerization system of polyamide fibre 6, it is characterised in that：Including finished pot (1), filter (2), preheater (3),
Heater (4) and prepolymerization kettle (5), the finished pot (1), filter (2), preheater (3), heater (4) and pre-polymerization
Conjunction reactor (5) passes sequentially through delivery pump and is connected, and the porch of the preheater (3) is provided with measuring pump (21), the pre-polymerization
Close reactor (5) bottom and be provided with rotary flow guide device (6), rotary flow guide device (6) exit is provided with outlet valve
(7), the outlet valve (7) is provided with viscosimeter.
4. the concentrate prepolymerization system of a kind of polyamide fibre 6 according to claim 3, it is characterised in that：The rotating flow guidance dress
(6) are put including rotating rod (61) and diversion component, the rotating rod (61) be hollow structure and be arranged on diversion component just under
Side.
5. the concentrate prepolymerization system of a kind of polyamide fibre 6 according to claim 4, it is characterised in that：The diversion component is
Hemispherical, the diversion component is hollow structure and is internally provided with dividing plate and is divided into behaviour area (62) and storage area (63), described
Behaviour area (62) and storage area (63) are connected with rotating rod (61), and the first cover plate is provided with above the behaviour area (62)
(624), first cover plate (624) is fixedly connected with behaviour area (62) and dividing plate, and the is provided with above the storage area (63)
Connecting tube is provided with below two cover plates (631), the storage area (63), the connecting tube is connected with rotating rod (61).
6. the concentrate prepolymerization system of a kind of polyamide fibre 6 according to claim 5, it is characterised in that：Second cover plate
(631) closed cover and opening cover plate are included, the closed cover is fixedly installed on the first half above storage area (63), and
Be fixedly connected with dividing plate, the opening cover plate is movably arranged on latter half above storage area (63), the closed cover with
The cover plate that is open is flexibly connected.
7. the concentrate prepolymerization system of a kind of polyamide fibre 6 according to claim 5, it is characterised in that：The behaviour area (62)
Including the first connecting shaft (621) and the second connecting shaft (622), first connecting shaft (621) is connected with rotating rod (61), described
Second connecting shaft (622) is fixedly connected with the first cover plate (624) of enclosed area upper surface, second connecting shaft (622) with every
Plate inner surface is fixedly connected.
8. the concentrate prepolymerization system of a kind of polyamide fibre 6 according to claim 7, it is characterised in that：First connecting shaft
(621) it is identical with the size of the second connecting shaft (622) and be " L " type.
9. the concentrate prepolymerization system of a kind of polyamide fibre 6 according to claim 8, it is characterised in that：First connecting shaft
(621) be centrosymmetric setting with the second connecting shaft (622).
10. the concentrate prepolymerization system of a kind of polyamide fibre 6 according to claim 7, it is characterised in that：First connecting shaft
(621) it is vertically arranged with rotating rod (61), torque spring is provided between first connecting shaft (621) and rotating rod (61)
(623)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710187967.9A CN106986988B (en) | 2017-03-27 | 2017-03-27 | Polyamide-6 concentrated solution prepolymerization process and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710187967.9A CN106986988B (en) | 2017-03-27 | 2017-03-27 | Polyamide-6 concentrated solution prepolymerization process and system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106986988A true CN106986988A (en) | 2017-07-28 |
| CN106986988B CN106986988B (en) | 2020-04-14 |
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ID=59412884
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710187967.9A Active CN106986988B (en) | 2017-03-27 | 2017-03-27 | Polyamide-6 concentrated solution prepolymerization process and system thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109852047A (en) * | 2018-12-25 | 2019-06-07 | 中国纺织科学研究院有限公司 | Function polyamide production system, production method and function polyamide |
| CN110256665A (en) * | 2019-07-10 | 2019-09-20 | 江苏海阳化纤有限公司 | A kind of ultralow viscous polyamide fibre in-situ polymerization color applicator and its application method of high-tenacity |
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| CN203768280U (en) * | 2014-03-10 | 2014-08-13 | 浙江美邦实业集团有限公司 | Novel caprolactam polymerization device |
| CN104048132A (en) * | 2013-03-11 | 2014-09-17 | 赵新胜 | Rotating guiding device |
| CN105968345A (en) * | 2016-07-20 | 2016-09-28 | 江苏海阳锦纶新材料有限公司 | Nylon 6 concentrated solution prepolymerization device |
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2017
- 2017-03-27 CN CN201710187967.9A patent/CN106986988B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048132A (en) * | 2013-03-11 | 2014-09-17 | 赵新胜 | Rotating guiding device |
| CN203768280U (en) * | 2014-03-10 | 2014-08-13 | 浙江美邦实业集团有限公司 | Novel caprolactam polymerization device |
| CN105968345A (en) * | 2016-07-20 | 2016-09-28 | 江苏海阳锦纶新材料有限公司 | Nylon 6 concentrated solution prepolymerization device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109852047A (en) * | 2018-12-25 | 2019-06-07 | 中国纺织科学研究院有限公司 | Function polyamide production system, production method and function polyamide |
| CN109852047B (en) * | 2018-12-25 | 2021-02-19 | 中国纺织科学研究院有限公司 | Functional polyamide production system, production method and functional polyamide |
| CN110256665A (en) * | 2019-07-10 | 2019-09-20 | 江苏海阳化纤有限公司 | A kind of ultralow viscous polyamide fibre in-situ polymerization color applicator and its application method of high-tenacity |
| CN110256665B (en) * | 2019-07-10 | 2024-03-19 | 海阳科技股份有限公司 | High-strength ultralow-viscosity nylon in-situ polymerization coloring device and application method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106986988B (en) | 2020-04-14 |
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