CN105538640A - Method of producing flat fibers for plastic woven bags and flexible freight containers by using waste PET (polyethylene terephthalate) bottles - Google Patents
Method of producing flat fibers for plastic woven bags and flexible freight containers by using waste PET (polyethylene terephthalate) bottles Download PDFInfo
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- CN105538640A CN105538640A CN201510909192.2A CN201510909192A CN105538640A CN 105538640 A CN105538640 A CN 105538640A CN 201510909192 A CN201510909192 A CN 201510909192A CN 105538640 A CN105538640 A CN 105538640A
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- waste
- flat filament
- old polyester
- polyester bottle
- plastic woven
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- 239000002699 waste material Substances 0.000 title claims abstract description 41
- 229920003023 plastic Polymers 0.000 title claims abstract description 33
- 239000004033 plastic Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 26
- 229920000139 polyethylene terephthalate Polymers 0.000 title claims abstract description 24
- -1 polyethylene terephthalate Polymers 0.000 title claims abstract description 23
- 239000000835 fiber Substances 0.000 title abstract description 17
- 239000005020 polyethylene terephthalate Substances 0.000 title abstract 5
- 229910052747 lanthanoid Inorganic materials 0.000 claims abstract description 11
- 230000014759 maintenance of location Effects 0.000 claims abstract description 9
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 8
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000004595 color masterbatch Substances 0.000 claims abstract description 8
- 239000000945 filler Substances 0.000 claims abstract description 8
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 8
- 239000001301 oxygen Substances 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 238000001125 extrusion Methods 0.000 claims abstract description 3
- 238000001914 filtration Methods 0.000 claims abstract description 3
- 229920000728 polyester Polymers 0.000 claims description 40
- 238000001035 drying Methods 0.000 claims description 26
- 238000004519 manufacturing process Methods 0.000 claims description 22
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 20
- 238000004140 cleaning Methods 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000004743 Polypropylene Substances 0.000 claims description 12
- 229920001155 polypropylene Polymers 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 12
- 239000002202 Polyethylene glycol Substances 0.000 claims description 10
- 239000012752 auxiliary agent Substances 0.000 claims description 10
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 10
- 229920001223 polyethylene glycol Polymers 0.000 claims description 10
- 239000004408 titanium dioxide Substances 0.000 claims description 10
- 230000005587 bubbling Effects 0.000 claims description 7
- 239000004067 bulking agent Substances 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 7
- 229920002799 BoPET Polymers 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 5
- 150000002910 rare earth metals Chemical class 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000009210 therapy by ultrasound Methods 0.000 claims description 5
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 2
- 238000002156 mixing Methods 0.000 abstract description 4
- 239000000654 additive Substances 0.000 abstract 1
- 229910000765 intermetallic Inorganic materials 0.000 abstract 1
- 150000002602 lanthanoids Chemical class 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000010345 tape casting Methods 0.000 abstract 1
- 239000004698 Polyethylene Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 229920000573 polyethylene Polymers 0.000 description 7
- 230000032683 aging Effects 0.000 description 5
- 238000011049 filling Methods 0.000 description 4
- 238000013467 fragmentation Methods 0.000 description 4
- 238000006062 fragmentation reaction Methods 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 3
- 238000007766 curtain coating Methods 0.000 description 3
- 125000003700 epoxy group Chemical group 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000003500 flue dust Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- 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
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/02—Heat treatment
-
- 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
- D01D5/12—Stretch-spinning methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B2017/001—Pretreating the materials before recovery
- B29B2017/0015—Washing, rinsing
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Artificial Filaments (AREA)
Abstract
The invention relates to a method of producing flat fibers for plastic woven bags and flexible freight containers by using waste PET (polyethylene terephthalate) bottles. The method is characterized by comprising the following steps of: mixing the waste PET bottles which are dried or crystalized in advance with a compatibilizer, an antioxidant, a tackifier, a filling agent, a color masterbatch, a lanthanide series metallic compound and additives, then adding the mixture to an extruder, carrying out extrusion, filtering and measurement in sequence, carrying out tape casting by using a die head, and cooling on a cooling roller to obtain films. The relative pulling strength (N/tex) of the flat fibers is greater than or equal to 0.58; the elongation rate (%) of the flat fibers is 16.5-21.4; the oxygen index of the flat fibers is above 26; the linear density (tex) of the flat fibers reaches 71.6-153.7; the tensile strength retention rate of the flat fibers is 93.3%-93.8% when the flat fibers are placed for 144 hours; the strength retention rate of the flat fibers is 97.1%-97.5% when the flat fibers are placed for 144 hours at the temperature of minus 35 DEG C; when being placed for 2 hours at the temperature of 140 DEG C, the shrinkage rate of the 10 cm flat fiber is 0; and the ink layer combination firmness of the flat fibers is 92%-99%.
Description
Technical field
The present invention relates to a kind of flat filament, particularly relate to a kind of method of waste and old polyester bottle production plastic woven bag, container bag flat filament, belong to processing of high molecular material technical field.
Background technology
Current plastic woven bag, container bag are for primary raw material with polypropylene (PP) or polyethylene (PE), through extruding, being drawn into flat filament, again through weaving, bag forms, be widely used in the transportation and packing of the powderies such as food, Cereals, medicine, chemical industry, mineral products, particle, block article, flourishing country generally uses container bag as the packaging product of transport, storage.
Current PP or PE Polywoven Bag or container bag flat filament tension intensity poor, anti ageing property is poor, the wire drawing unit of this plastic flat fiber also cannot use other resin and plastic raw material to produce woven bag, container bag flat filament, the domestic and international demand to stool goods grows with each passing day now, therefore, the scientific and technical personnel of this area do raw material in exploration with other resin and produce flat filament, and improve the intensity of flat filament on the one hand, another aspect can reduce production cost.The mechanical property, uvioresistant performance, weather resistance etc. of PET all go with PE than PP, and in addition PET raw material sources are extensive, also can reuse after reclaiming discarded PET bottle material fragmentation, and therefore PET produces for plastic flat fiber and has huge potential value.
But PET glass transition temperature is higher, containing phenyl ring in strand, rigidity is strong, reset motion slowly, cause its crystalline rate lower, high temperature is met water electrode and is easily degraded, and the mode of production therefore continuing to use PP, PE extrudes-curtain coating-water-cooled film forming-split film sub-wire-Jia hot-stretch-sizing-curling can not obtain flat filament, also there is no suitable PET Flat Yarn Production equipment so far.
Summary of the invention
The technical problem to be solved in the present invention is for above deficiency, a kind of method of waste and old polyester bottle production plastic woven bag, container bag flat filament is provided, overcome the deficiency that PET woven bag in prior art, container bag flat filament hot strength, elongation at break are low and yielding after stretching, flat filament hardens, adopt above production method, following object can be realized:
1, hot strength is high.
2, under ultraviolet irradiation and cryogenic conditions, strength retention is high, and reach more than 90%, weatherability, ageing resistance are good, long service life.
3, the flat filament transparency is good, and printing effect is excellent.
4, raw material are obtained by waste PET plastic bottle, environment friendly and pollution-free.
5, have excellent self-extinguishment, burning does not produce noxious material contaminated environment.
7, under 100 DEG C of high temperature, flat filament does not shrink substantially, has extremely excellent dimensional stability, can bear the high-temperature filling of industrial chemicals, feed etc.
8, good toughness, antiwear property is strong, not easily sub-wire, split silk, fluffing.
9, line density is high.
For solving the problems of the technologies described above, the present invention actual adopt technical scheme to be: a kind of method of waste and old polyester bottle production plastic woven bag, container bag flat filament, is characterized in that, comprise and extrude casting film step:
Add extruder after drying or pre-crystallized waste and old polyester bottle being mixed with bulking agent, antioxidant, tackifier, filler, color masterbatch, lanthanide metal compound and auxiliary agent, through extruding, filtering, measure, die head be cast to chill roll cooling, obtain diaphragm;
The weight ratio of waste and old polyester bottle and bulking agent, antioxidant, tackifier, filler, color masterbatch is 80-85:5:2:2:4-8:2-3.
A kind of prioritization scheme, the weight of lanthanide metal compound middle rare earth metallic element is 0.08wt% ~ 0.5wt%, based on the weighing scale of waste and old polyester bottle used.
Further, auxiliary agent comprises respectively with the titanium dioxide of polypropylene bag quilt, copper chloride and polyethylene glycol;
The addition of titanium dioxide is 0.02wt%-0.2wt%;
The addition of copper chloride is 0.02wt%-0.2wt%;
The addition of polyethylene glycol is 0.02wt%-0.2wt%;
Above all with the weighing scale of waste and old polyester bottle used.
Further, also comprise:
Pulverize cleaning step: waste and old polyester plastics bottle and bottle cap are carried out the sheet stock that cutting and grinding are diameter 12mm-14mm, then wash through clear water heat, dewatering obtains clean sheet stock;
Crystallizing and drying: raw material is sent in crystallizing and drying device to roll through feeding machine and stirred, by heating medium for heating to 140 DEG C-180 DEG C of crystallizing and drying 4-6 hour, and using vavuum pump to vacuumize continuously, in holding device, vacuum is 0.8mPa-0.95mPa, makes raw material drying be less than or equal to 30 μ g/g to water content.
Further, also comprise diaphragm preheating, stretching, sub-wire redraw step:
By diaphragm through preheating, stretching, sub-wire, redraw, thermal finalization, obtain that even width, intensity are high, the flat filament of good toughness after cooling step.
Further, pulverize in cleaning step: adopt Full-automatic ultrasonic cleaner, + multiple the cleaning way of pressure pulse cleaning is embathed in conjunction with Ultrasonic Cleaning+cleaning showers+hot water, wherein ultrasonic frequency is 20 ~ 50kHz, ultrasonic treatment time is 1 ~ 3 minute, hot water water temperature 80 DEG C-95 DEG C, bubbling medium adopts air bubbling.
Further, in crystallizing and drying step: drying device is that vacuum drum is dry, and heating agent is conduction oil.
Further, extrude in casting film: extrusion temperature is at 255-280 DEG C, and chill roll diameter 800mm, chill roll chilling temperature is at 20 ~ 28 DEG C.
Further, during diaphragm preheating, stretching, sub-wire redraw: diaphragm preheating method be PET film sheet through contact with one group of preheat roll from 60 DEG C step by step gradient be incremented to 90 DEG C, preheat roll is one group of steel rider and coated ceramic roller, and top-bottom cross arranges;
Stretching mode is diaphragm one-off drawing and flat filament succeeding stretch, and diaphragm one-off drawing is 1.5 ~ 2.5 times, and heating-up temperature is 90 ~ 130 DEG C, and flat filament succeeding stretch is 1.5 ~ 3 times, and heating-up temperature is 150 ~ 180 DEG C;
Thermal finalization adopts drying-plate heating, and heating-up temperature is 180 ~ 230 DEG C.
Further, the line density (tex) of PET flat filament: 71.6-153.7; Relative pull-off force (N/tex) >=0.58; Percentage elongation (%): 16.5-21.4; 144 hours tensile strength retention are 93.3%-93.8%; The strength retention ratio 97.1%-97.5% of 144h is placed at-35 DEG C; 140 DEG C, 2h, 10cm flat filament shrinkage factor is 0; Layer of ink binding strength is 92%-99%; Oxygen index (OI) is 26.9-27.3.
The present invention adopts above technical scheme, compared with prior art, have the following advantages: after chilling roller film forming, diaphragm stretching, flat filament drawing process, drawing process is carried out smoothly, avoid the problem of the easy fracture of wire of PET flat filament in drawing process, the PET flat filament produced significantly improves in mechanical property, ageing resistance, lower temperature resistance, heat resistance, oxygen index (OI), layer of ink binding strength, wearability, relative pull-off force (N/tex) >=0.58; Percentage elongation (%): 16.5-21.4; Oxygen index (OI) more than 26, line density (tex) reaches 71.6-153.7; 144 hours tensile strength retention are 93.3%-93.8%; The strength retention ratio 97.1%-97.5% of 144h is placed at-35 DEG C; 140 DEG C, 2h, 10cm flat filament shrinkage factor is 0; Layer of ink binding strength is 92%-99%.
Below in conjunction with embodiment, the present invention is described in detail.
Detailed description of the invention
Should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Embodiment 1, a kind of method of waste and old polyester bottle production high strength, high tenacity plastic woven bag, container bag flat filament, comprises the following steps:
(1) cleaning step is pulverized: waste and old polyester plastics bottle and bottle cap are carried out the bottle sheet that cutting and grinding are diameter 12mm-14mm, the wherein inherent viscosity 0.60 ~ 0.68dL/g of polyester bottle slice, through Full-automatic ultrasonic cleaner, successively through Ultrasonic Cleaning, ultrasonic frequency is 20kHz, and ultrasonic treatment time is 3 minutes, high pressure cleaning showers, 85 DEG C of hot water embathe, and air bubbling running water cleans, and obtains clean bottle chips;
(2) crystallizing and drying: sheet stock good for fragmentation is sent into heating, drying in vacuum drum device through feeding machine, adopt heat-conducting oil heating to 140 DEG C, crystallizing and drying after 6 hours, and use vavuum pump to vacuumize continuously, making to produce negative pressure pressure in crystallizing and drying device is 0.8mPa, the flue dust that in extraction raw material, contained moisture and impurity produce in pyroprocess, makes moisture be reduced to 30 μ g/g;
(3) casting film step is extruded: by 80 parts of waste polyester bottle chip material, 5 parts of bulking agent (AX8900, Arkema), 2 parts of antioxidant (CC10008704WE, PolyOne), 2 parts of tackifier (the epoxies tackifier of the self-produced sale of company), 8 parts of filler (PET dedicated filling mother stocks, TOYOINKGroup), 3 parts of color masterbatch (FG-010-1802, AstraPolymers), lanthanide metal compound and auxiliary agent mixing, add extruder 1, extruder temperature is 275 DEG C, through fondant filter, measuring pump is to die head, and extrude from the narrow slit of die head, curtain coating is to 28 DEG C, on the chilling roller 2 of diameter 800mm, quenching forms diaphragm.
The weight of lanthanide metal compound middle rare earth metallic element is 0.08wt%; Auxiliary agent comprises respectively with the titanium dioxide of polypropylene bag quilt, copper chloride and polyethylene glycol; The addition of titanium dioxide is 0.2wt%; The addition of copper chloride is 0.02wt%; The addition of polyethylene glycol is 0.02wt%; Above all with the weighing scale of waste and old polyester bottle used.
(4) diaphragm preheating, stretching, sub-wire redraw step:
Cooled PET film sheet access to plant, through and the steel rider that arranges of one group of top-bottom cross and coated ceramic roller from 60 DEG C step by step gradient be incremented to 90 DEG C, again through one group of 110 DEG C of draw roll, diaphragm stretches 1.5 times, diaphragm after stretching obtains width 2.54mm flat filament by a point silk device, under draw-gear, effect, flat filament is by heated oven succeeding stretch 2 times, flat filament stretching heating-up temperature is 160 DEG C, again by the drying-plate heater of draw-gear effect through 220 DEG C, obtain high strength, high tenacity flat filament, final through winder rolling, obtain PET flat filament.
Realize the device of waste and old polyester bottle production plastic woven bag, container bag flat filament method, comprise the extruder, chilling roller, the diaphragm that connect in turn and indulge withdrawing roll, point silk device, flat filament first draw-gear, heated oven, flat filament second draw-gear, drying-plate heater, flat filament the 3rd draw-gear, winder.
Embodiment 2, a kind of method of waste and old polyester bottle production high strength, high tenacity plastic woven bag, container bag flat filament, comprises the following steps:
(1) cleaning step is pulverized: waste and old polyester plastics bottle and bottle cap are carried out the bottle sheet that cutting and grinding are diameter 12mm-14mm, the wherein inherent viscosity 0.60 ~ 0.68dL/g of polyester bottle slice, through Full-automatic ultrasonic cleaner, successively through Ultrasonic Cleaning, ultrasonic frequency is 40kHz, and ultrasonic treatment time is 2 minutes, high pressure cleaning showers, 95 DEG C of hot water embathe, and air bubbling running water cleans, and obtains clean bottle chips;
(2) crystallizing and drying: sheet stock good for fragmentation is sent into heating, drying in vacuum drum device through feeding machine, adopt heat-conducting oil heating to 160 DEG C, crystallizing and drying after 4 hours, and use vavuum pump to vacuumize continuously, making to produce negative pressure pressure in crystallizing and drying device is 0.86mPa, the flue dust that in extraction raw material, contained moisture and impurity produce in pyroprocess, makes moisture be reduced to 30 μ g/g;
(3) casting film step is extruded: by 85 parts of waste polyester bottle chip material, 5 parts of bulking agent (AX8900, Arkema), 2 parts of antioxidant (CC10008704WE, PolyOne), 2 parts of tackifier (the epoxies tackifier of the self-produced sale of company), 4 parts of filler (PET dedicated filling mother stocks, and 2 parts of color masterbatch (FG-010-1802 TOYOINKGroup), AstraPolymers), lanthanide metal compound and auxiliary agent mixing, add extruder, extruder temperature is 280 DEG C, through fondant filter, measuring pump is to die head, and extrude from the narrow slit of die head, curtain coating is to 26 DEG C, on the chilling roller of diameter 800mm, quenching forms diaphragm.
The weight of lanthanide metal compound middle rare earth metallic element is 0.22wt%; Auxiliary agent comprises respectively with the titanium dioxide of polypropylene bag quilt, copper chloride and polyethylene glycol; The addition of titanium dioxide is 0.02wt%; The addition of copper chloride is 0.2wt%; The addition of polyethylene glycol is 0.2wt%; Above all with the weighing scale of waste and old polyester bottle used.
(4) diaphragm preheating, stretching, sub-wire redraw step:
Cooled PET film sheet access to plant, through and the steel rider that arranges of one group of top-bottom cross and coated ceramic roller from 60 DEG C step by step gradient be incremented to 90 DEG C, again through one group of 110 DEG C of draw roll, diaphragm stretches 1.8 times, diaphragm after stretching obtains width 2.54mm flat filament by a point silk device, under draw-gear, effect, flat filament is by heated oven succeeding stretch 2.3 times, flat filament stretching heating-up temperature is 150 DEG C, again by the drying-plate heater of draw-gear effect through 230 DEG C, obtain high strength, high tenacity flat filament, finally obtain PET flat filament through winder rolling.
Embodiment 3, a kind of method of waste and old polyester bottle production high strength, high tenacity plastic woven bag, container bag flat filament, comprises the following steps:
(1) cleaning step is pulverized: waste and old polyester plastics bottle and bottle cap are carried out the bottle sheet that cutting and grinding are diameter 12mm-14mm, the wherein inherent viscosity 0.60 ~ 0.68dL/g of polyester bottle slice, through Full-automatic ultrasonic cleaner, successively through Ultrasonic Cleaning, ultrasonic frequency is 50kHz, and ultrasonic treatment time is 1 minute, high pressure cleaning showers, 90 DEG C of hot water embathe, and air bubbling running water cleans, and obtains clean bottle chips;
(2) crystallizing and drying: sheet stock good for fragmentation is sent into heating, drying in vacuum drum device through feeding machine, adopt heat-conducting oil heating to 180 DEG C, crystallizing and drying after 3 hours, period vacuumizes continuously with vavuum pump, making to produce negative pressure pressure in crystallizing and drying device is 0.8mPa, the flue dust that in extraction raw material, contained moisture and impurity produce in pyroprocess, makes moisture be reduced to 30 μ g/g;
(3) casting film step is extruded: by 83 parts of waste polyester bottle chip material, 5 parts of bulking agent (AX8900, Arkema), 2 parts of antioxidant (CC10008704WE, PolyOne), 2 parts of tackifier (the epoxies tackifier of the self-produced sale of company), 5 parts of filler (PET dedicated filling mother stocks, and 3 parts of color masterbatch (FG-010-1802 TOYOINKGroup), AstraPolymers), lanthanide metal compound and auxiliary agent mixing, add extruder, extruder temperature is 275 DEG C, through fondant filter, measuring pump is to die head, and extrude from the narrow slit of die head, curtain coating is to 28 DEG C, on the chilling roller of diameter 800mm, quenching forms diaphragm.
The weight of lanthanide metal compound middle rare earth metallic element is 0.5wt%; Auxiliary agent comprises respectively with the titanium dioxide of polypropylene bag quilt, copper chloride and polyethylene glycol; The addition of titanium dioxide is 0.12wt%; The addition of copper chloride is 0.12wt%; The addition of polyethylene glycol is 0.12wt%; Above all with the weighing scale of waste and old polyester bottle used.
(4) diaphragm preheating, stretching, sub-wire redraw step:
Cooled PET film sheet access to plant, through and the steel rider that arranges of one group of top-bottom cross and coated ceramic roller from 60 DEG C step by step gradient be incremented to 90 DEG C, again through one group of 110 DEG C of draw roll, diaphragm stretches 1.5 times, diaphragm after stretching obtains width 2.54mm flat filament by a point silk device, under draw-gear, effect, flat filament is by heated oven succeeding stretch 2 times, flat filament stretching heating-up temperature is 160 DEG C, again by the drying-plate heater of draw-gear effect through 220 DEG C, obtain high strength, high tenacity flat filament, finally obtain PET flat filament through winder rolling.
The material more than related to is product on sale on market; Unless specifically indicated, percentage refers to percentage by weight.
PET flat filament mechanical property, ageing resistance, lower temperature resistance, heat resistance, oxygen index (OI), layer of ink binding strength, wearability test is carried out according to GB/T8946, GB/T10454, GB/T2406, GB/T7707, GBT3960, and contrast with PP, PE flat filament, testing result is as shown in table 1.
Table 1: the mechanical property of plastic flat fiber
Table 2: the ageing resistace of flat filament
Table 3: the resistance to low temperature of flat filament
Table 4: the heat resistance of plastic flat fiber
The oxygen index (OI) of table 5 plastic flat fiber, color fastness test
Table 6 anti-wear performance test result
As can be seen from above five forms, the mechanical property of embodiment of the present invention gained flat filament, ageing resistance, lower temperature resistance, heat resistance, oxygen index (OI), layer of ink binding strength, wearability indices have significant advantage than commonly using PE, PP flat filament at present.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a method for waste and old polyester bottle production plastic woven bag, container bag flat filament, is characterized in that, comprises and extrudes casting film step:
Add extruder after drying or pre-crystallized waste and old polyester bottle being mixed with bulking agent, antioxidant, tackifier, filler, color masterbatch, lanthanide metal compound and auxiliary agent, through extruding, filtering, measure, die head be cast to chill roll cooling, obtain diaphragm;
The weight ratio of waste and old polyester bottle and bulking agent, antioxidant, tackifier, filler, color masterbatch is 80-85:5:2:2:4-8:2-3.
2. the method for a kind of waste and old polyester bottle production plastic woven bag as claimed in claim 1, container bag flat filament, it is characterized in that, the weight of lanthanide metal compound middle rare earth metallic element is 0.08wt% ~ 0.5wt%, based on the weighing scale of waste and old polyester bottle used.
3. the method for a kind of waste and old polyester bottle production plastic woven bag as claimed in claim 1, container bag flat filament, is characterized in that, auxiliary agent comprises respectively with the titanium dioxide of polypropylene bag quilt, copper chloride and polyethylene glycol;
The addition of titanium dioxide is 0.02wt%-0.2wt%;
The addition of copper chloride is 0.02wt%-0.2wt%;
The addition of polyethylene glycol is 0.02wt%-0.2wt%;
Above all with the weighing scale of waste and old polyester bottle used.
4. the method for a kind of waste and old polyester bottle production plastic woven bag as claimed in claim 1, container bag flat filament, is characterized in that, also comprise:
Pulverize cleaning step: waste and old polyester plastics bottle and bottle cap are carried out the sheet stock that cutting and grinding are diameter 12mm-14mm, then wash through clear water heat, dewatering obtains clean sheet stock;
Crystallizing and drying: raw material is sent in crystallizing and drying device to roll through feeding machine and stirred, by heating medium for heating to 140 DEG C-180 DEG C of crystallizing and drying 3-6 hour, and using vavuum pump to vacuumize continuously, in holding device, vacuum is 0.8mPa-0.95mPa, makes raw material drying be less than or equal to 30 μ g/g to water content.
5. the method for a kind of waste and old polyester bottle production plastic woven bag as claimed in claim 1, container bag flat filament, is characterized in that, also comprises diaphragm preheating, stretching, sub-wire redraw step:
By diaphragm through preheating, stretching, sub-wire, redraw, thermal finalization, obtain that even width, intensity are high, the flat filament of good toughness after cooling step.
6. the method for a kind of waste and old polyester bottle production plastic woven bag as claimed in claim 4, container bag flat filament, it is characterized in that, pulverize in cleaning step: adopt Full-automatic ultrasonic cleaner, + multiple the cleaning way of pressure pulse cleaning is embathed in conjunction with Ultrasonic Cleaning+cleaning showers+hot water, wherein ultrasonic frequency is 20 ~ 50kHz, ultrasonic treatment time is 1 ~ 3 minute, hot water water temperature 80 DEG C-95 DEG C, and bubbling medium adopts air bubbling.
7. the method for a kind of waste and old polyester bottle production plastic woven bag as claimed in claim 4, container bag flat filament, is characterized in that, in crystallizing and drying step: drying device is that vacuum drum is dry, and heating agent is conduction oil.
8. the method for a kind of waste and old polyester bottle production plastic woven bag as claimed in claim 1, container bag flat filament, is characterized in that, extrude in casting film: extrusion temperature is at 255-280 DEG C, and chill roll diameter 800mm, chill roll chilling temperature is at 20 ~ 28 DEG C.
9. the method for a kind of waste and old polyester bottle production plastic woven bag as claimed in claim 1, container bag flat filament, it is characterized in that, during diaphragm preheating, stretching, sub-wire redraw: diaphragm preheating method be PET film sheet through contact with one group of preheat roll from 60 DEG C step by step gradient be incremented to 90 DEG C, preheat roll is one group of steel rider and coated ceramic roller, and top-bottom cross arranges;
Stretching mode is diaphragm one-off drawing and flat filament succeeding stretch, and diaphragm one-off drawing is 1.5 ~ 2.5 times, and heating-up temperature is 90 ~ 130 DEG C, and flat filament succeeding stretch is 1.5 ~ 3 times, and heating-up temperature is 150 ~ 180 DEG C;
Thermal finalization adopts drying-plate heating, and heating-up temperature is 180 ~ 230 DEG C.
10. a kind of waste and old polyester bottle as claimed in claim 1 is used for the production method of plastic woven bag, container bag flat filament, it is characterized in that, the line density (tex) of PET flat filament: 71.6-153.7; Relative pull-off force (N/tex) >=0.58; Percentage elongation (%): 16.5-21.4; 144 hours tensile strength retention are 93.3%-93.8%; The strength retention ratio 97.1%-97.5% of 144h is placed at-35 DEG C; 140 DEG C, 2h, 10cm flat filament shrinkage factor is 0; Layer of ink binding strength is 92%-99%; Oxygen index (OI) is 26.9-27.3.
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| CN108085854A (en) * | 2017-12-29 | 2018-05-29 | 杭州联成华卓实业有限公司 | Recycle the production technology of terylene and cotton blended fabric |
| CN108166082A (en) * | 2018-02-07 | 2018-06-15 | 常州至能土工材料有限公司 | A kind of method using polyester slice production flat filament |
| CN108973070A (en) * | 2018-09-10 | 2018-12-11 | 巢湖市聚汇遮阳设备科技有限公司 | The solar energy two of sunshade net wire drawing machine leads sub-wire structure |
| CN112609316A (en) * | 2020-12-11 | 2021-04-06 | 山东滨州波涛化纤制品有限公司 | Method for manufacturing fabric by weaving PET cast film and slitting and stretching all-in-one machine |
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| CN105538640B (en) | 2018-06-26 |
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