CN103276471B - The preparation method of wear-resisting monofilament for wire-cloth - Google Patents

The preparation method of wear-resisting monofilament for wire-cloth Download PDF

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CN103276471B
CN103276471B CN201310261337.3A CN201310261337A CN103276471B CN 103276471 B CN103276471 B CN 103276471B CN 201310261337 A CN201310261337 A CN 201310261337A CN 103276471 B CN103276471 B CN 103276471B
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monofilament
wear
resisting
wire
pet
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CN103276471A (en
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董华伟
王初鸣
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Henan Fangyuan Net Technology Co ltd
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Henan Huafeng Polyester Wire Mesh Science & Technology Co Ltd
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Abstract

The present invention relates to the preparation method of the wear-resisting monofilament of a kind of wire-cloth, it is that the full-bodied PET of employing is basic material, increase the intensity of monofilament with LCPA950, add PBT increases the suppleness of monofilament simultaneously, thereby reach preparation method's the intensity and the object of wearability that improve the wear-resisting monofilament of wire-cloth, make the intensity of wire-cloth and wearability meet the needs of paper machine, to ensure the production efficiency of enterprise, reduce the wasting of resources. The wearability of monofilament of the present invention improves approximately 30% than original common PET monofilament, and the tensile strength of monofilament of the present invention improves approximately 15% than original common PET monofilament.

Description

The preparation method of wear-resisting monofilament for wire-cloth
Technical field:
The invention belongs to wire-cloth establishment material technology field, be specifically related to a kind of wire-cloth of high-strength abrasion-proof with resistance toThe preparation method of mill monofilament.
Background technology:
At present, the monofilament that Weaving paper-making net is used is monofilament polyester mostly, conventionally adopts polyester slice with high viscosity fusion drawnMake, but polyester slice with high viscosity is because relative molecular mass is high, long-chain macromolecule is easily wound around mutually, intermolecular active forceShowing and increasing, melt flow property extreme difference. Improve polyester capillaries temperature if adopt and improve liquidity, relative molecular mass fallsLow, intrinsic viscosity fall is large, affects the characteristic property of high viscosity monofilament. By the method for blending and modifying, at high viscosity polyesterIn section, add the additive that improves its mobility, prepare modified master batch, then be drawn into silk with high viscosity polyester section blended melting,Can make smoothly the industry monofilament polyester of function admirable.
But along with the development of paper-making industry, the production efficiency of paper machine is more and more higher, the rotating speed of paper machine more and moreHurry up, this just causes the wire-cloth wearing and tearing that existing monofilament polyester is woven into very fast, and easily breaks and the phenomenon such as rub, therebyAffect the normal production of enterprise, in sum, existing monofilament polyester can not meet the needs of efficient paper machine, becomesFor affecting the bottleneck of paper-making industry development.
Summary of the invention:
In sum, in order to overcome the deficiency of prior art problem, the invention provides the wear-resisting monofilament of a kind of wire-clothPreparation method, it is that to adopt full-bodied PET be basic material, increases the intensity of monofilament with LCPA950, adds PBT simultaneouslyIncrease the suppleness of monofilament, thereby reach preparation method's the intensity and the object of wearability that improve the wear-resisting monofilament of wire-cloth,Make the intensity of wire-cloth and wearability meet the needs of paper machine, to ensure the production efficiency of enterprise, reduce the wasting of resources.
For solving the problems of the technologies described above, technical scheme of the present invention is achieved in that
A preparation method for wear-resisting monofilament for wire-cloth, wherein: comprise following processing step:
A, get the raw materials ready:
Weigh in proportion PET, LCPA950, PBT and antioxidant 1010, the percentage by weight of each component is: PET:85%-93%; LCPA950:2%-4%; PBT:4%-8%; Surplus is antioxidant 1010;
B, dry being uniformly mixed
PET, LCPA950 and PBT are mixed in rear input vacuum drum in proportion, be uniformly mixed while being dried;
C, the compound after dry being uniformly mixed and antioxidant 1010 are dropped in batch mixer after stirring at low speed, send into two spiral shellsBar granulator granulation;
D, raw material drying
Respectively common PET and wear-resisting grain are dried;
E, dried common PET and wear-resisting grain are mixed according to the ratio of 100:25~30 after, send into wire-drawing production lineCarry out monofilament production, the spun filament extruded from spinneret is first through water cooling sizing, and then through four tractive, thermal finalization, fallTemperature is processed, and finally eliminates after static and reels and make finished product.
Technical scheme of the present invention can also be achieved in that the viscosity number of described PET is 1.0.
Technical scheme of the present invention can also be achieved in that the viscosity number of described PBT is 1.2.
In dry being uniformly mixed of step b described in technical scheme of the present invention can also be achieved in that, drop into vacuumPET, LCPA950 in rotary drum and PBT are dried and stir 5~7 hours at 120~140 DEG C.
Technical scheme of the present invention can also be achieved in that in described step c, mixing after drying is uniformly mixedClose material and antioxidant 1010 stirring at low speed 4~8 minutes in batch mixer.
Technical scheme of the present invention can also be achieved in that in described step c, dual-screw pelletizer extrude temperatureDegree is 240~280 DEG C.
Technical scheme of the present invention can also be achieved in that in described steps d raw material drying, common PET is 160At~180 DEG C, be dried at least 8 hours; Wear-resisting grain is dried at least 8 hours at 140~160 DEG C.
Technical scheme of the present invention can also be achieved in that in described step e, and spun filament is first through 60~70 DEG CWater cooling is glassy state, and carries out tractive one time in the liquid oil of 135~140 DEG C, then the monofilament after a tractive is sent intoOven heat carries out secondary tractive, and oven heat temperature is 170~180 DEG C; Monofilament after secondary tractive is sent into oven heat and is carried out three timesTractive, oven heat temperature is 190~210 DEG C; Monofilament after secondary tractive is again sent into oven heat and is carried out tractive, oven heat four timesTemperature is 190~210 DEG C.
When technical scheme of the present invention can also be achieved in that a described tractive rotating speed of pulling roll be 20~22m/min; When secondary tractive, the rotating speed of pulling roll is 80~82m/min; When three tractives the rotating speed of pulling roll be 100~105m/min; When four tractives, the rotating speed of pulling roll is 90~92m/min.
Beneficial effect of the present invention is:
1, the present invention is that the full-bodied PET of employing is basic material, increases the intensity of monofilament with LCP, adds PBT simultaneously and increasesAdd the suppleness of monofilament, thereby reach preparation method's the intensity and the object of wearability that improve the wear-resisting monofilament of wire-cloth, makeThe intensity of wire-cloth and wearability meet the needs of paper machine, to ensure the production efficiency of enterprise, reduce the wasting of resources.
2, the wearability of monofilament of the present invention improves approximately 30% than original common PET monofilament, and the tension of monofilament of the present invention is strongDegree improves approximately 15% than original common PET monofilament.
3, in preparation method of the present invention, the spun filament of extruding from spinneret after water cooling is glassy state, 135~In the liquid oil of 140 DEG C, carry out one time tractive, the liquid oil of 135~140 DEG C can effectively cushion and discharge dividing in glassy state monofilamentEnergy between son, and a tractive is set up the new balance of energy between strand again, can effectively keep finished product monofilament moleculeBetween stable, thereby ensure the stability of monofilament.
4, preparation method's technique of the present invention is simple, convenient and swift, easily implements, and the wire-cloth that the present invention produces is with wear-resistingMonofilament, well, yield rate is high for smooth surface, stable performance, good, the first whole degree of wearability, and the wear-resisting monofilament of being produced by the present invention weavesWire-cloth, long service life, tensile strength is good, can be good at adapting to the high-speed cruising of paper machine.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment mono-:
A preparation method for wear-resisting monofilament for wire-cloth, wherein: comprise following processing step:
A, get the raw materials ready:
Weigh in proportion PET, LCPA950, PBT and antioxidant 1010, the percentage by weight of each component is: PET:90%;LCPA950:3%; PBT:6%; Surplus is antioxidant 1010, and the viscosity number that the viscosity number of PET is 1.0, PBT is 1.2;
B, dry being uniformly mixed
PET, LCPA950 and PBT are mixed in rear input vacuum drum in proportion, at 130 DEG C, be dried and stir 6 littleTime
C, the compound after dry being uniformly mixed and antioxidant 1010 are dropped in batch mixer after stirring at low speed 5 minutes, sendEnter dual-screw pelletizer granulation, the extrusion temperature of dual-screw pelletizer is 240~280 DEG C;
D, raw material drying
Respectively common PET and wear-resisting grain are dried; Common PET is dried 8 hours at 170 DEG C; Wear-resisting grain is at 150 DEG CDry 8 hours down;
E, dried common PET and wear-resisting grain are mixed according to 100:28 ratio after, send into wire-drawing production line and carry out listSilk is produced, and the spun filament extruded from spinneret is first through water cooling sizing, and then through four tractives, thermal finalization, cooling processing,After finally eliminating static, coiling is made finished product.
Spun filament is first through the water cooling glassy state of 65 DEG C, and in the liquid oil of 138 DEG C, carries out one time tractive, when a tractiveThe rotating speed of pulling roll is 20.8m/min; Then the monofilament after a tractive is sent into oven heat and carry out secondary tractive, oven heatTemperature is 175 DEG C; When secondary tractive, the rotating speed of pulling roll is 81m/min; Monofilament after secondary tractive is sent into oven heat and is carried out threeInferior tractive, oven heat temperature is 199 DEG C; When three tractives, the rotating speed of pulling roll is 101.5m/min; Monofilament after secondary tractiveAgain send into oven heat and carry out tractive four times, oven heat temperature is 200 DEG C; When four tractives, the rotating speed of pulling roll is 90.3m/min。
Embodiment bis-:
A preparation method for wear-resisting monofilament for wire-cloth, wherein: comprise following processing step:
A, get the raw materials ready:
Weigh in proportion PET, LCPA950, PBT and antioxidant 1010, the percentage by weight of each component is: PET:85%;LCPA950:4%; PBT:8%; Surplus is antioxidant 1010, and the viscosity number that the viscosity number of PET is 1.0, PBT is 1.2;
B, dry being uniformly mixed
PET, LCPA950 and PBT are mixed in rear input vacuum drum in proportion, at 120 DEG C, be dried and stir 7 littleTime
C, the compound after dry being uniformly mixed and antioxidant 1010 are dropped in batch mixer after stirring at low speed 4 minutes, sendEnter dual-screw pelletizer granulation, the extrusion temperature of dual-screw pelletizer is 240~280 DEG C;
D, raw material drying
Respectively common PET and wear-resisting grain are dried; Common PET is dried 10 hours at 160 DEG C; Wear-resisting grain is 140At DEG C, be dried 12 hours;
E, dried common PET and wear-resisting grain are mixed according to 100:25 ratio after, send into wire-drawing production line and carry out listSilk is produced, and the spun filament extruded from spinneret is first through water cooling sizing, and then through four tractives, thermal finalization, cooling processing,After finally eliminating static, coiling is made finished product.
Spun filament is first glassy state through the water cooling of 70 DEG C, and in the liquid oil of 135 DEG C, carries out tractive one time, a tractiveTime pulling roll rotating speed be 20m/min; Then the monofilament after a tractive is sent into oven heat and carry out secondary tractive, oven heatTemperature is 170 DEG C; When secondary tractive, the rotating speed of pulling roll is 80m/min; Monofilament after secondary tractive is sent into oven heat and is carried out threeInferior tractive, oven heat temperature is 190 DEG C; When three tractives, the rotating speed of pulling roll is 100m/min; Monofilament after secondary tractive againThe inferior oven heat of sending into carries out tractive four times, and oven heat temperature is 190 DEG C; When four tractives, the rotating speed of pulling roll is 90m/min.
Embodiment tri-:
A preparation method for wear-resisting monofilament for wire-cloth, wherein: comprise following processing step:
A, get the raw materials ready:
Weigh in proportion PET, LCPA950, PBT and antioxidant 1010, the percentage by weight of each component is: PET:93%;LCPA950:2%; PBT:4%; Surplus is antioxidant 1010, and the viscosity number that the viscosity number of PET is 1.0, PBT is 1.2;
B, dry being uniformly mixed
PET, LCPA950 and PBT are mixed in rear input vacuum drum in proportion, at 140 DEG C, be dried and stir 5 littleTime
C, the compound after dry being uniformly mixed and antioxidant 1010 are dropped in batch mixer after stirring at low speed 8 minutes, sendEnter dual-screw pelletizer granulation, the extrusion temperature of dual-screw pelletizer is 240~280 DEG C;
D, raw material drying
Respectively common PET and wear-resisting grain are dried; Common PET is dried 8 hours at 180 DEG C; Wear-resisting grain is at 160 DEG CDry 8 hours down;
E, dried common PET and wear-resisting grain are mixed according to 100:30 ratio after, send into wire-drawing production line and carry out listSilk is produced, and the spun filament extruded from spinneret is first through water cooling sizing, and then through four tractives, thermal finalization, cooling processing,After finally eliminating static, coiling is made finished product.
Spun filament is first glassy state through the water cooling of 80 DEG C, and in the liquid oil of 140 DEG C, carries out tractive one time, a tractiveTime pulling roll rotating speed be 22m/min; Then the monofilament after a tractive is sent into oven heat and carry out secondary tractive, oven heatTemperature is 180 DEG C; When secondary tractive, the rotating speed of pulling roll is 82m/min; Monofilament after secondary tractive is sent into oven heat and is carried out threeInferior tractive, oven heat temperature is 210 DEG C; When three tractives, the rotating speed of pulling roll is 105m/min; Monofilament after secondary tractive againThe inferior oven heat of sending into carries out tractive four times, and oven heat temperature is 208 DEG C; When four tractives, the rotating speed of pulling roll is 92m/min.
The monofilament that embodiment mono-is produced, the monofilament that embodiment bis-produces, monofilament and common monofilament that embodiment tri-producesCarry out wear-resisting experiment, its result contrast is as follows:
Wear-resisting experiment condition: adopt the wear-resisting experimental machine of setline as experimental facilities, the wear-resisting experimental machine rotating speed of setline is:114 revs/min; Experimental situation temperature: normal temperature; Experiment load: 500g.
The anti-wear performance of the wear-resisting monofilament of producing through preparation method of the present invention as seen from the above table, will be far away higher than commonThe anti-wear performance of monofilament.
Be noted that above-described embodiment be to the explanation of technical solution of the present invention and unrestricted, affiliated technical field is generalLogical technical staff is equal to other amendment of replacing or making according to prior art, as long as do not exceed technical solution of the present inventionThinking and scope, within all should being included in interest field of the presently claimed invention.

Claims (8)

1. a preparation method for wear-resisting monofilament for wire-cloth, is characterized in that: comprise following processing step:
A, get the raw materials ready:
Weigh in proportion PET, LCPA950, PBT and antioxidant 1010, the percentage by weight of each component is: PET:85%-93%;LCPA950:2%-4%; PBT:4%-8%; Surplus is antioxidant 1010;
B, dry being uniformly mixed
PET, LCPA950 and PBT are mixed in rear input vacuum drum in proportion, be uniformly mixed while being dried;
C, the compound after dry being uniformly mixed and antioxidant 1010 are dropped in batch mixer after stirring at low speed, send into twin-screw and makeThe granulation of grain machine, obtains wear-resisting grain;
D, raw material drying
Respectively common PET and wear-resisting grain are dried;
E, dried common PET and wear-resisting grain are mixed according to the ratio of 100:25~30 after, send into wire-drawing production line and carry outMonofilament is produced, and the spun filament extruded from spinneret is first through water cooling sizing, and then through four tractives, thermal finalization, cooling placeReason, finally eliminates after static and reels and make finished product;
When tractive, spun filament is first glassy state through the water cooling of 60~70 DEG C, and carries out once in the fluid of 135~140 DEG CTractive, then sends the monofilament after a tractive into oven heat and carries out secondary tractive, and oven heat temperature is 170~180 DEG C; SecondaryMonofilament after tractive is sent into oven heat and is carried out tractive three times, and oven heat temperature is 190~210 DEG C; Monofilament after three tractives againThe inferior oven heat of sending into carries out tractive four times, and oven heat temperature is 190~210 DEG C.
2. the preparation method of wear-resisting monofilament for wire-cloth according to claim 1, is characterized in that: described PET's is stickyDegree value is 1.0.
3. the preparation method of wear-resisting monofilament for wire-cloth according to claim 1, is characterized in that: described PBT's is stickyDegree value is 1.2.
4. the preparation method of wear-resisting monofilament for wire-cloth according to claim 1, is characterized in that: described step b is dryIn dry being uniformly mixed, dropping into PET, LCPA950 in vacuum drum and PBT and at 120~140 DEG C, be dried and stir 5~7 littleTime.
5. the preparation method of wear-resisting monofilament for wire-cloth according to claim 1, is characterized in that: in described step c,Compound after drying is uniformly mixed and antioxidant 1010 stirring at low speed 4~8 minutes in batch mixer.
6. the preparation method of wear-resisting monofilament for wire-cloth according to claim 1, is characterized in that: in described step c,The extrusion temperature of dual-screw pelletizer is 240~280 DEG C.
7. the preparation method of wear-resisting monofilament for wire-cloth according to claim 1, is characterized in that: described steps d is formerDuring material is dry, common PET is dried at least 8 hours at 160~180 DEG C; Wear-resisting grain is dry at least 8 little at 140~160 DEG CTime.
8. the preparation method of wear-resisting monofilament for wire-cloth according to claim 1, is characterized in that: a described tractiveTime pulling roll rotating speed be 20~22m/min; When secondary tractive, the rotating speed of pulling roll is 80~82m/min; When three tractives, leadThe rotating speed of withdrawing roll is 100~105m/min; When four tractives, the rotating speed of pulling roll is 90~92m/min.
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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103643582A (en) * 2013-11-27 2014-03-19 安徽华辰造纸网股份有限公司 Method for manufacturing forming fabric for warp connection paper making
CN105088410A (en) * 2015-09-02 2015-11-25 太仓市宏亿化纤有限公司 Preparation technology of PBT (polybutylene terephthalate)-regenerated PET (polyethylene glycol terephthalate) modified stretch yarn
CN106222796B (en) * 2016-08-24 2018-10-02 四川环龙技术织物有限公司 A kind of preparation method of the resistance composite industrial monofilament of wire-cloth
CN110924141A (en) * 2019-11-20 2020-03-27 中山国安火炬科技发展有限公司 Combined preparation method of antistatic antibacterial polyester fiber

Citations (4)

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WO1998028472A1 (en) * 1996-12-20 1998-07-02 Asten Inc. Polyester fiber with improved abrasion resistance
CN1254035A (en) * 1998-09-10 2000-05-24 塞拉尼斯阿希德特Llc公司 Method for preparing thermotropic liquid crystal polymer and its composite high-denier multi-bobed filament
US6106942A (en) * 1998-12-02 2000-08-22 Celanese Acetate Llc Liquid crystalline polymer monofilaments having improved adhesion characteristics
US6165614A (en) * 1998-06-26 2000-12-26 Johns Manville International, Inc. Monofilaments based on polyethylene-2,6-naphthalate

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
WO1998028472A1 (en) * 1996-12-20 1998-07-02 Asten Inc. Polyester fiber with improved abrasion resistance
US6165614A (en) * 1998-06-26 2000-12-26 Johns Manville International, Inc. Monofilaments based on polyethylene-2,6-naphthalate
CN1254035A (en) * 1998-09-10 2000-05-24 塞拉尼斯阿希德特Llc公司 Method for preparing thermotropic liquid crystal polymer and its composite high-denier multi-bobed filament
US6106942A (en) * 1998-12-02 2000-08-22 Celanese Acetate Llc Liquid crystalline polymer monofilaments having improved adhesion characteristics

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