CN103590129A - Polypropylene fiber easy to dye and preparation method thereof - Google Patents
Polypropylene fiber easy to dye and preparation method thereof Download PDFInfo
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- CN103590129A CN103590129A CN201310487988.4A CN201310487988A CN103590129A CN 103590129 A CN103590129 A CN 103590129A CN 201310487988 A CN201310487988 A CN 201310487988A CN 103590129 A CN103590129 A CN 103590129A
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Abstract
The invention discloses a polypropylene fiber easy to dye. The fiber comprises the following components by weight percent: 80-95% of polypropylene, 5-10% of sodium allylsulfonate, 5-10% of maleic anhydride, and 0.04-0.05% of a catalyst, wherein the weight percentage of the components is 100% in total. According to the preparation method, sodium allylsulfonate is taken as a dyeing base and is grafted onto a polypropylene macromolecular chain through reacting with maleic anhydride; the sodium allylsulfonate modified by maleic anhydride has allyl functional groups, has good compatibility with a polypropylene molecular chain, and can generate part grafted copolymers, so that the crystallization course of polypropylene fiber is disturbed, the orientation and crystallization of macromolecular chain of the polypropylene fiber are damaged, the anion functional group sulfonic acid group is maintained, the sulfonic acid group and cationic dyes can exchange ions at low temperature, so that cationic dyes enter the surface and interior of the fiber so as to obtain the polypropylene fiber easy to dye.
Description
Technical field
The invention belongs to chemical fibre manufacture and staining technique field, be specifically related to a kind of easy dyeing polypropylene fibre and preparation method thereof.
Background technology
Polypropylene fibre is because of easily crystallization, and strand is arranged regular, and dye molecule is difficult to be attached to fiber surface and inside, and does not contain polar group in polypropylene molecular chain, be difficult to and dye molecule combination, thereby polypropylene fibre is difficult to dyeing.In order to make dyestuff enter fiber surface and inside, there is several method to attempt.First method is surface treatment, by methods such as plasma method, corona discharge method, infusion processes, makes fiber surface with polar group, and dye molecule combination, thereby has dyeability.Yet surface treating process for modifying is difficult to continuity method to be produced, and modified effect is not fine, is difficult to realize industrialization and produces.Second method is copolymerization, because propylene is gas, to catalyst, require very high, add the second monomer can reduce catalytic efficiency, therefore, be difficult to direct block copolymerization, conventional graft copolymerization mode, dying seat (can accept the part of dye functional group), be grafted on polypropylene macromolecular chain, thereby make fiber molecule have dyeability, seat is dyed in conventional radiation, oxidation and mode of heating grafting, but process loaded down with trivial details, and in graft copolymerization process, the mechanical property of polypropylene fibre is produced to considerable influence, and can not practical requirement, be difficult to suitability for industrialized production.The third method is blend method, in polypropylene fibre, adds and can dye component, at fiber surface and inner formation dyestuff acceptor, thereby has dyeability.Conventional additive has low molecular compound, macromolecular compound and metal salt compound.No matter adopt which kind of additive, all need to solve the compatibility of additive and polypropylene molecule and the problem of processing flowability, to upset the crystallization behavior of polypropylene fibre in forming process on the one hand, do not destroy again the mechanical property of fiber simultaneously, take into account this two aspect more difficult, and low molecular additives also exists viscosity too little, too fast deficiency flows; Metal Salts, except flowing soon, is only applicable to dark dye, and range of application is narrow.
Summary of the invention
The present invention is directed to the above-mentioned deficiency of prior art, a kind of mechanical property of simply, not destroying fiber of processing is provided, make to dye seat and be evenly distributed on polypropylene fibre surface and the inner easy dyeing polypropylene fibre that can realize suitability for industrialized production.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of easy dyeing polypropylene fibre, each weight percentages of components of this fiber is: polypropylene is 80-95%, propenyl sodium sulfonate is 5-10%, maleic anhydride is 5-10%, catalyst is 0.04-0.05%, and above-mentioned each weight percentages of components sum is 100%.
Propenyl sodium sulfonate in the present invention, can be sodium allylsulfonate or methylpropene sodium sulfonate, and its fusing point is at 180-230 ℃.
In the present invention, catalyst can be benzoyl peroxide.
The present invention also provides a kind of preparation method of above-mentioned easy dyeing polypropylene fibre, and preparation process comprises:
(1) according to following ratio weighing: polypropylene is 80-95%; Propenyl sodium sulfonate is 5-10%; Maleic anhydride is 5-10%; Catalyst is 0.04-0.05%, and above-mentioned each weight percentages of components sum is 100%; Load weighted raw material is dropped in high speed agitator, 5-150 rev/min of stirring 5-10 minute of first low speed, high speed 200-800 rev/min is stirred 15-25 minute again, controls whipping temp (low speed and whipping temp at a high speed) and, between 90-120 ℃, various raw materials is evenly mixed;
(2) by step (1) mixed uniformly raw material in mixed at high speed agitator, be dropped in response type double screw extruder, Screw Extrusion temperature is 160-230 degree, after melting mixing, propenyl sodium sulfonate and maleic anhydride are under catalyst action, extrude, tie rod, pelletizing, obtain blend particle;
(3) blend particle is put in spinning screw extruder, setting Screw Extrusion temperature is 190-250 ℃, it is that the spinnerets of 24-108 is extruded into melt fiber that fused materials enters hole count through spinning pack, then through wind-warm syndrome, be that 16-35 degree, cold air blast velocity are the cooling air quenching of 0.3-1.5 m/min, then the hot-rolling through 50-90 degree stretches, draw ratio is 1.5-3.0 times, then at winding speed, be coiling and molding on the up-coiler of 1500-3000 m/min, obtain easy dyeing polypropylene fibre.
Advantage of the present invention and beneficial effect:
The present invention with to propenyl sodium sulfonate for dying seat, by propenyl sodium sulfonate, react with maleic anhydride, be grafted on polypropylene macromolecular chain, under twin-screw effect, evenly mix, by screw spinning, obtain easy dyeing polypropylene fibre.Through maleic anhydride modified sodium allylsulfonate, all contain propenyl functional group, there is good compatibility with polypropylene molecular chain, and can generating portion graft copolymer, upset polypropylene fibre crystallization process, break and encircled orientation and the crystallization of macromolecular chain in polypropylene fibre, retained this anionic functional group of sulfonic acid group simultaneously, can under cryogenic conditions, carry out with cation dyes ion-exchange, thereby make cation dyes enter fiber surface and inside, obtaining cation stain polypropylene fibre is easy dyeing polypropylene fibre.
2. the present invention has overcome the additive of prior art or has been to dye copolyester, or is the slaine high defect of temperature that bad and dyeing polypropylene fibers needs with polypropene blended processing flowability that cause; The present invention adopts the polar molecule that has certain degree of polymerization, and its fusing point, in fiber process temperature range, has a higher percentage composition that dyes, and has good compatibility with polypropylene molecule, can be processed into smoothly fiber.
The specific embodiment
Below by embodiment, the present invention is described in further detail, but the present invention is not only confined to following examples.
Embodiment 1:
Weighing polypropylene and be 90.95 parts, sodium allylsulfonate and be 6 parts, maleic anhydride is 3 parts; 0.05 part of benzoyl peroxide.Load weighted raw material is dropped in high speed agitator, and 50 revs/min of first low speed stir 10 minutes, more at a high speed 500 revs/min stir 20 minutes, control whipping temp at 95 ℃, various raw materials are evenly mixed.By the raw material evenly mixing, be dropped in response type double screw extruder, Screw Extrusion temperature is 210 ℃, after melting mixing, extrudes, cooling, tie rod, pelletizing, obtains blend particle.
Blend particle is put in vacuum drier, setting baking temperature is 110 ℃, dry after 3 hours, taking-up is put in spinning screw extruder, setting Screw Extrusion temperature is 220 ℃, pass through melt-out spinning, through spinning pack, entering spinnerets hole count is that the spinnerets in 24 holes is extruded into melt fiber, then through wind-warm syndrome, be after 20 degree, cold air blast velocity are the cooling air quenching of 1.0 ms/min, hot-rolling through 60 degree stretches, draw ratio is 2.0 times, at winding speed, is then coiling and molding on the up-coiler of 2800 ms/min, obtains easy dyeing polypropylene POY fiber.
Embodiment 2:
Weighing polypropylene and be 89.95 parts, methylpropene sodium sulfonate and be 8 parts, maleic anhydride is 2 parts; 0.05 part of benzoyl peroxide.Load weighted raw material is dropped in high speed agitator, and 100 revs/min of first low speed stir 10 minutes, more at a high speed 600 revs/min stir 20 minutes, control whipping temp at 105 ℃, various raw materials are evenly mixed.By the raw material evenly mixing, be dropped in double screw extruder, Screw Extrusion temperature is 210 ℃, after melting mixing, propenyl sodium sulfonate and maleic anhydride, under catalyst action, are extruded, tie rod, pelletizing, obtain blend particle.Blend particle is put in vacuum drier, setting baking temperature is 110 ℃, dry after 2 hours, taking-up is put in response type spinning screw extruder, setting Screw Extrusion temperature is 220 ℃, spinning body temperature is 240 ℃, pass through melt-out spinning, through spinning pack, entering spinnerets hole count is that the spinnerets in 96 holes is extruded into melt fiber, then through wind-warm syndrome, be 25 degree, cold air blast velocity is after the cooling air quenching of 1.2 ms/min, hot-rolling through 80 degree stretches, draw ratio is 2.8 times, then at winding speed, be coiling and molding on the up-coiler of 2500 ms/min, after drawing-off, obtain easy dyeing polypropylene DT fiber.
Embodiment 3:
Weighing polypropylene and be 91 parts, sodium allylsulfonate and be 5.95 parts, maleic anhydride is 3 parts; 0.05 part of ammonium persulfate.Load weighted raw material is dropped in high speed agitator, and 150 revs/min of first low speed stir 10 minutes, more at a high speed 800 revs/min stir 20 minutes, control 90 ℃ of whipping temps, various raw materials are evenly mixed.By the raw material evenly mixing, be dropped in response type double screw extruder, setting Screw Extrusion temperature is 200 ℃, after melting mixing, propenyl sodium sulfonate and maleic anhydride, under catalyst action, are extruded, tie rod, pelletizing, obtain blend particle.Blend particle is put in vacuum drier, setting baking temperature is 90 ℃, dry after 3 hours, taking-up is put in spinning screw extruder, setting Screw Extrusion temperature is 210 ℃, spinning body temperature is 230 ℃, pass through melt-out spinning, through spinning pack, entering spinnerets hole count is that the spinnerets in 108 holes is extruded into melt fiber, then through wind-warm syndrome, be 30 degree, cold air blast velocity is after the cooling air quenching of 1.5 ms/min, hot-rolling through 90 degree stretches, draw ratio is 2.5 times, then at winding speed, be coiling and molding on the up-coiler of 3000 ms/min, after drafting false twisting, obtain easy dyeing polypropylene DTY fiber.
Adopt cation dyes to carry out cation stain in the sample of above-described embodiment, its rate of dyeing (tinctorial yield, dye uptake) detects (with reference to the assay method of GB/T16602-1996 dye uptake), and its rate of dyeing reaches 85-97%; Therefore, it is high that polypropylene fibre of the present invention has rate of dyeing, and firmly advantage dyes.
Claims (4)
1. an easy dyeing polypropylene fibre, it is characterized in that: each weight percentages of components of this fiber is: polypropylene is 80-95%, propenyl sodium sulfonate is 5-10%, and maleic anhydride is 5-10%, catalyst is 0.04-0.05%, and above-mentioned each weight percentages of components sum is 100%.
2. easy dyeing polypropylene fibre according to claim 1, is characterized in that: described propenyl sodium sulfonate is sodium allylsulfonate or the methylpropene sodium sulfonate of fusing point at 180-230 ℃.
3. easy dyeing polypropylene fibre according to claim 1, is characterized in that: described catalyst is benzoyl peroxide.
4. a preparation method for easy dyeing polypropylene fibre, is characterized in that: preparation process comprises:
(1) according to following ratio weighing: polypropylene is 80-95%; Propenyl sodium sulfonate is 5-10%; Maleic anhydride is 5-10%; Catalyst is 0.04-0.05%, and above-mentioned each weight percentages of components sum is 100%; Load weighted raw material is dropped in agitator, and first 5-150 rev/min is stirred 5-10 minute, then 200-800 rev/min of stirring 15-25 minute, controls whipping temp between 90-120 ℃, and various raw materials are evenly mixed;
(2) by step (1) mixed uniformly raw material in mixed at high speed agitator, be dropped in response type double screw extruder, Screw Extrusion temperature is 160-230 degree, after melting mixing, propenyl sodium sulfonate and maleic anhydride are under catalyst action, extrude, tie rod, pelletizing, obtain blend particle;
(3) blend particle is put in spinning screw extruder, setting Screw Extrusion temperature is 190-250 ℃, it is that the spinnerets of 24-108 is extruded into melt fiber that fused materials enters hole count through spinning pack, then through wind-warm syndrome, be that 16-35 degree, cold air blast velocity are the cooling air quenching of 0.3-1.5 m/min, then the hot-rolling through 50-90 degree stretches, draw ratio is 1.5-3.0 times, then at winding speed, be coiling and molding on the up-coiler of 1500-3000 m/min, obtain easy dyeing polypropylene fibre.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107513219A (en) * | 2017-09-20 | 2017-12-26 | 阜南县鲲鹏塑业科技有限公司 | A kind of preparation method of easy dyeing plastic master batch |
| CN111793843A (en) * | 2020-07-13 | 2020-10-20 | 常熟涤纶有限公司 | Dark-color dyeable polypropylene fiber and preparation method thereof |
| CN116375399A (en) * | 2023-03-22 | 2023-07-04 | 河源市源隆新型环保建材有限公司 | Dry-mixed thin-layer anti-cracking plastering mortar and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107513219A (en) * | 2017-09-20 | 2017-12-26 | 阜南县鲲鹏塑业科技有限公司 | A kind of preparation method of easy dyeing plastic master batch |
| CN111793843A (en) * | 2020-07-13 | 2020-10-20 | 常熟涤纶有限公司 | Dark-color dyeable polypropylene fiber and preparation method thereof |
| CN111793843B (en) * | 2020-07-13 | 2023-03-10 | 常熟涤纶有限公司 | Dark-color dyeable polypropylene fiber and preparation method thereof |
| CN116375399A (en) * | 2023-03-22 | 2023-07-04 | 河源市源隆新型环保建材有限公司 | Dry-mixed thin-layer anti-cracking plastering mortar and preparation method thereof |
| CN116375399B (en) * | 2023-03-22 | 2023-10-24 | 河源市源隆新型环保建材有限公司 | Dry-mixed thin-layer anti-cracking plastering mortar and preparation method thereof |
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Effective date of registration: 20191031 Address after: 516000 Qiu Long Town, Huiyang District, Guangdong, Huizhou Patentee after: Huizhou Orient Carpet Manufacturing Co., Ltd. Address before: The 516221 Guangdong Industrial Zone Huiyang District Huizhou City, long town of autumn Patentee before: HUIYANG ZHONGHE HUIXIN CHEMICAL FIBER CO., LTD. |
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