CN103382586A - Method for recycling polyphenylene sulfide melt-spinning intermediate waste material - Google Patents
Method for recycling polyphenylene sulfide melt-spinning intermediate waste material Download PDFInfo
- Publication number
- CN103382586A CN103382586A CN2013102551004A CN201310255100A CN103382586A CN 103382586 A CN103382586 A CN 103382586A CN 2013102551004 A CN2013102551004 A CN 2013102551004A CN 201310255100 A CN201310255100 A CN 201310255100A CN 103382586 A CN103382586 A CN 103382586A
- Authority
- CN
- China
- Prior art keywords
- polyphenylene sulfide
- double screw
- silk
- screw extruder
- melt
- 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
Links
- 239000004734 Polyphenylene sulfide Substances 0.000 title claims abstract description 47
- 229920000069 polyphenylene sulfide Polymers 0.000 title claims abstract description 47
- 239000002699 waste material Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000002074 melt spinning Methods 0.000 title claims abstract description 8
- 238000004064 recycling Methods 0.000 title claims abstract description 7
- 239000008188 pellet Substances 0.000 claims abstract description 15
- 238000002844 melting Methods 0.000 claims abstract description 3
- 230000008018 melting Effects 0.000 claims abstract description 3
- 238000005453 pelletization Methods 0.000 claims description 7
- 239000000155 melt Substances 0.000 claims description 6
- 239000010419 fine particle Substances 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 2
- 238000009288 screen filtration Methods 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 6
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 abstract 1
- 239000000470 constituent Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000001351 cycling effect Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
Landscapes
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a method for recycling a polyphenylene sulfide melt-spinning intermediate waste material. The method comprises the steps: with polyphenylene sulfide waste filaments and pulp lumps as raw materials, pretreating the polyphenylene sulfide waste filaments and the pulp lumps, adding into a twin-screw extruder, melting, carrying out vacuum pumping, filtering with a sieve, then extruding, and dicing to obtain polyphenylene sulfide pellets. The method has the advantages of simple process and high recovery rate, and the prepared polyphenylene sulfide pellets have high purity.
Description
Technical field
The present invention relates to a kind of method of chemical fiber waste filament regeneration, particularly a kind of method of polyphenylene sulfide waste silk, lumps cycling and reutilization.
Background technology
Polyphenylene sulfide has excellent chemical resistance, is dissolved in hardly any solvent below 200 ℃; Good anti-flammability, limited oxygen index is greater than 35; Good heat endurance, long-term serviceability temperature is up to 170 ℃; And have good creep properties, insulating properties, a mechanical performance etc.
The production of polyphenylene sulfide fibre at present is all to adopt melt spinning, because its processing technology difficulty is high, reach in daily production process and all can produce a large amount of polyphenylene sulfide waste silks and lumps (not completing into the polyphenylene sulfide material piece that silk is processed) at every turn when stopping car, and at present not yet relevant for the method for polyphenylene sulfide waste silk, lumps cycling and reutilization, the value of polyphenylene sulfide waste silk, lumps is not fully utilized, cause the wasting of resources, increased the production cost of polyphenylene sulfide fibre.
Summary of the invention
In view of the vacancy of prior art, the purpose of this invention is to provide a kind of method of polyphenylene sulfide waste silk, lumps cycling and reutilization, make it to make up the vacancy of prior art, reduce the wasting of resources, reduce production costs.Technological process of the present invention is simple, the rate of recovery is high, and the polyphenylene sulfide pellet purity that makes is high.
The objective of the invention is to realize by following means.
A kind of method of scrap loop recycling in the middle of polyphenylene sulfide melt spinning is characterized in that: comprise following treatment step:
(1) waste material is classified: be divided into without silk noil and silk noil and lumps are arranged;
(2) waste silk is cut to the comparatively uniform short silk of length; Lumps is pulverized and is fritter, and removes dust and fine particle;
(3) (2) gained is added in double screw extruder, through melting, vacuumize, extrude after screen filtration, pelletizing, make the polyphenylene sulfide pellet; Melt temperature is 300～330 ℃, and the vacuum of double screw extruder is 0.01～0.15MPa, and filter screen is 2～4 layers, several 50～500 orders of order.
In the preferred case, in described step (3), the melt temperature without silk noil is controlled at 300～320 ℃; The vacuum degree control of double screw extruder is at 0.01～0.10MPa; The melt temperature that silk noil is arranged is controlled at 303～325 ℃; The vacuum degree control of double screw extruder is at 0.01～0.15MPa; The melt temperature of lumps is controlled at 305～330 ℃; The vacuum degree control of double screw extruder is at 0.01～0.15MPa.
Described double screw extruder is meshed double screw in the same way, melt zone adopts gear block or the reverse thread element with certain stagger arrangement angle, wherein the stagger arrangement angle of gear block is 90 ° of 30 ° of forwards, 60 ° of forwards or forwards, and the reverse thread element is reverse 30 ° or reverse 60 °.
The specific embodiment:
The present invention is described in further detail below in conjunction with embodiment.
Embodiment 1
Raw material: polyphenylene sulfide is without oily waste silk.
Twin-screw melt zone module: 60 ° of gear blocks of forward.
Adopting process is: polyphenylene sulfide is cut to the comparatively uniform short silk of length without oily waste silk, adds in twin-screw, 302 ℃ of melt temperatures, vacuum 0.10MPa, through 100 orders, 150 orders, 300 eye mesh screens extrude after filtering, pelletizing makes the polyphenylene sulfide pellet.
The ash of gained polyphenylene sulfide pellet is 0.27%, fugitive constituent is 0.25%.
Embodiment 2
Raw material: polyphenylene sulfide is without oily waste silk.
Twin-screw melt zone module: 90 ° of gear blocks of forward.
Adopting process is: polyphenylene sulfide is cut to the comparatively uniform short silk of length without oily waste silk, adds in twin-screw, 305 ℃ of melt temperatures, vacuum 0.06MPa, through 150 orders, 200 orders, 300 eye mesh screens extrude after filtering, pelletizing makes the polyphenylene sulfide pellet.
The ash of gained polyphenylene sulfide pellet is 0.21%, fugitive constituent is 0.21%.
Embodiment 3
Raw material: polyphenylene sulfide has oily waste silk.
Twin-screw melt zone module: reverse 30 ° of gear blocks.
Adopting process is: have oily waste silk to be cut to the comparatively uniform short silk of length polyphenylene sulfide, add in twin-screw, 307 ℃ of melt temperatures, vacuum 0.04MPa, through 100 orders, 150 orders, 300 eye mesh screens extrude after filtering, pelletizing makes the polyphenylene sulfide pellet.
The ash of gained polyphenylene sulfide pellet is 0.30%, fugitive constituent is 0.29%.
Embodiment 4
Raw material: polyphenylene sulfide has oily waste silk.
Twin-screw melt zone module: reverse 60 ° of gear blocks.
Adopting process is: have oily waste silk to be cut to the comparatively uniform short silk of length polyphenylene sulfide, add in twin-screw, 310 ℃ of melt temperatures, vacuum 0.01MPa, through 150 orders, 200 orders, 300 eye mesh screens extrude after filtering, pelletizing makes the polyphenylene sulfide pellet.
The ash of gained polyphenylene sulfide pellet is 0.23%, fugitive constituent is 0.27%.
Embodiment 5
Raw material: polyphenylene sulfide lumps.
Twin-screw melt zone module: 30 ° of gear blocks of forward.
Adopting process is: polyphenylene sulfide is put into the pulverizer pulverizing with lumps be fritter, then powder and the screening of fine particle polyphenylene sulfide are removed, make size polyphenylene sulfide particle comparatively uniformly, add in twin-screw, 311 ℃ of melt temperatures, vacuum 0.09MPa, through 100 orders, 200 orders, 300 eye mesh screens extrude after filtering, pelletizing makes the polyphenylene sulfide pellet.
The ash of gained polyphenylene sulfide pellet is 0.26%, fugitive constituent is 0.29%.
Claims (3)
1. the method for scrap loop recycling in the middle of a polyphenylene sulfide melt spinning is characterized in that: comprise following treatment step:
(1) waste material is classified: be divided into without silk noil and silk noil and lumps are arranged;
(2) waste silk is cut to the comparatively uniform short silk of length; Lumps is pulverized and is fritter, and removes dust and fine particle;
(3) (2) gained is added in double screw extruder, through melting, vacuumize, extrude after screen filtration, pelletizing, make the polyphenylene sulfide pellet; Melt temperature is 300～330 ℃, and the vacuum of double screw extruder is 0.01～0.15MPa, and filter screen is 2～4 layers, several 50～500 orders of order.
2. a kind of method of scrap loop recycling in the middle of polyphenylene sulfide polyphenylene sulfide melt spinning according to claim 1, is characterized in that: in described step (3), the melt temperature without silk noil is controlled at 300～320 ℃; The vacuum degree control of double screw extruder is at 0.01～0.15MPa; The melt temperature that silk noil is arranged is controlled at 303～325 ℃; The vacuum degree control of double screw extruder is at 0.01～0.10MPa; The melt temperature of lumps is controlled at 305～330 ℃; The vacuum degree control of double screw extruder is at 0.01～0.15MPa.
3. a kind of method of scrap loop recycling in the middle of polyphenylene sulfide polyphenylene sulfide melt spinning according to claim 1, it is characterized in that: described twin-screw extrusion adopts meshed double screw in the same way, melt zone adopts gear block or the reverse thread element with certain stagger arrangement angle, wherein the stagger arrangement angle of gear block is 30 ° of forwards, 60 ° or 90 °, and the reverse thread element is reverse 30 ° or reverse 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102551004A CN103382586A (en) | 2013-06-25 | 2013-06-25 | Method for recycling polyphenylene sulfide melt-spinning intermediate waste material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102551004A CN103382586A (en) | 2013-06-25 | 2013-06-25 | Method for recycling polyphenylene sulfide melt-spinning intermediate waste material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103382586A true CN103382586A (en) | 2013-11-06 |
Family
ID=49490504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102551004A Pending CN103382586A (en) | 2013-06-25 | 2013-06-25 | Method for recycling polyphenylene sulfide melt-spinning intermediate waste material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103382586A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818548A (en) * | 2015-04-24 | 2015-08-05 | 长乐力恒锦纶科技有限公司 | Recovery process of polyamide 6 spinning waste yarns |
| CN105153460A (en) * | 2015-07-01 | 2015-12-16 | 福建百宏聚纤科技实业有限公司 | FDY oil-free waste silk intelligent online adding reuse device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02219624A (en) * | 1989-02-22 | 1990-09-03 | Kureha Chem Ind Co Ltd | Lower oligomer sheet and production thereof |
| JP2006022326A (en) * | 2004-06-09 | 2006-01-26 | Toray Ind Inc | Preparation process of polyphenylenesulfide resin composition |
| JP2006265393A (en) * | 2005-03-24 | 2006-10-05 | Toray Ind Inc | Method of manufacturing polyphenylene sulfide resin composition |
| CN103014909A (en) * | 2011-09-24 | 2013-04-03 | 张家港保税区炬德化纤有限公司 | Method for preparing polyphenylene sulfide resin (PPS) fibers by waste material regeneration |
-
2013
- 2013-06-25 CN CN2013102551004A patent/CN103382586A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02219624A (en) * | 1989-02-22 | 1990-09-03 | Kureha Chem Ind Co Ltd | Lower oligomer sheet and production thereof |
| JP2006022326A (en) * | 2004-06-09 | 2006-01-26 | Toray Ind Inc | Preparation process of polyphenylenesulfide resin composition |
| JP2006265393A (en) * | 2005-03-24 | 2006-10-05 | Toray Ind Inc | Method of manufacturing polyphenylene sulfide resin composition |
| CN103014909A (en) * | 2011-09-24 | 2013-04-03 | 张家港保税区炬德化纤有限公司 | Method for preparing polyphenylene sulfide resin (PPS) fibers by waste material regeneration |
Non-Patent Citations (1)
| Title |
|---|
| 陈占勋编著: "《废旧高分子材料资源及综合利用》", vol. 1, 化学工业出版社, pages: 186 - 187 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818548A (en) * | 2015-04-24 | 2015-08-05 | 长乐力恒锦纶科技有限公司 | Recovery process of polyamide 6 spinning waste yarns |
| CN105153460A (en) * | 2015-07-01 | 2015-12-16 | 福建百宏聚纤科技实业有限公司 | FDY oil-free waste silk intelligent online adding reuse device |
| CN105153460B (en) * | 2015-07-01 | 2016-07-06 | 福建百宏聚纤科技实业有限公司 | Reclamation set is added in FDY oil-free waste silk intellectuality online |
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