KR101687071B1 - Permanent antistatic fiber and method for manufacturing thereof - Google Patents
Permanent antistatic fiber and method for manufacturing thereof Download PDFInfo
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- KR101687071B1 KR101687071B1 KR1020140132457A KR20140132457A KR101687071B1 KR 101687071 B1 KR101687071 B1 KR 101687071B1 KR 1020140132457 A KR1020140132457 A KR 1020140132457A KR 20140132457 A KR20140132457 A KR 20140132457A KR 101687071 B1 KR101687071 B1 KR 101687071B1
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Abstract
The present invention relates to a permanent antistatic fiber comprising a hydrophilic polymer, a conductive polymer, a fiber-forming polymer, and an ionomer, and a process for producing the same. In the permanent antistatic fiber according to the present invention, , It is less influenced by the external atmosphere condition than the existing electrostatic discharge principle in which electricity is discharged from the inside of the fiber when the static electricity is generated by discharging the static electricity by the moisture of the fiber surface, It is possible to exhibit a less aggressive and more permanent and stable electrification performance.
Description
More particularly, the present invention relates to a permanent antistatic fiber and a method for producing the permanent antistatic fiber. More particularly, the present invention relates to a permanent antistatic fiber and a method of manufacturing the same. More particularly, A fiber capable of exhibiting antistatic properties, and a manufacturing method thereof.
There are various static problems in all modern industries.
In the textile industry, the chemical fibers are stuck to each other due to static electricity or are repelled and damaged. In the electronic industry, the discharge of static electricity damages the oxide film of the electronic parts, thereby causing deterioration and damage of the electronic parts. Static electricity in hazardous areas using solvents is causing fire and explosion. In the optical industry, contamination of products by static electricity is a serious problem. In all industries, clean rooms and clean benches are rapidly spreading in order to prevent contamination of products.
As a method of imparting antistaticity to a resin, there is known a method of applying an antistatic agent such as a surfactant to the surface of the resin, and a method of incorporating an antistatic agent into the resin. However, in the method of applying the antistatic agent to the resin surface, since the antistatic property remarkably lowers over a long period of time, there is a problem in that practicality as an antistatic resin having persistence is insufficient. On the other hand, in the method of mixing the antistatic agent into the resin, the compatibility between the antistatic agent and the resin is poor, and the antistatic agent bleeds out to the surface of the molded article, and the antistatic effect is lowered. In addition, the antistatic agent such as a surfactant has a humidity dependency, has a negligible antistatic effect under low humidity, or takes a minimum of one to three days until the antistatic effect is exhibited after molding the resin, there is a problem.
Korean Patent Laid-Open Publication No. 10-1996-0080487 discloses that when 0.1 to 5 parts by weight of a polyoxyalkylene glycol or a derivative thereof having good hygroscopicity is added together with 100 parts by weight of a polyester in a polyester polymerization, Discloses an invention in which an antistatic property is imparted to a yarn by polymerizing a copolymer and containing 0.1 to 3 parts by weight of an ionic organic compound. However, this is affected by ambient humidity, and when the humidity is low, the static electricity-removing performance is weakened, and there is a problem that the physical properties are lower than that of general polyester.
Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a fiber capable of exhibiting a more permanent and stable electrification performance, .
Another object of the present invention is to provide a method for producing such a permanent antistatic fiber.
One aspect of the present invention to accomplish the above object is directed to a permanent antistatic fiber comprising a hydrophilic polymer, a conductive polymer, a fiber-forming polymer, and an ionomer.
In the permanent antistatic fiber according to the present invention, the fiber may contain 2 to 5% by weight of a hydrophilic polymer; 5 to 6% by weight of a conductive polymer; 80 to 90% by weight of a fiber-forming polymer; And 3 to 10% by weight of an ionomer.
In the permanent antistatic fiber according to the present invention, the ionomer may be represented by the following general formula (1) or (2)
[Chemical Formula 1]
(m, n is an integer of 1 or more, and M + is any one of the Group 1 elements of the periodic table)
(2)
(m, n is an integer of 1 or more, and M + is any one of the metal elements of Group 1 of the periodic table)
The hydrophilic polymer may be selected from the group consisting of polyethylene glycol, polyvinyl alcohol, polyvinyl acetate and derivatives thereof. The conductive polymer may be selected from the group consisting of polyaniline, polyacetylene, polypyrrole, polythiophene, polysulfuronitride and derivatives thereof And the fiber-forming polymer may be a polyolefin-based or polyamide-based resin.
According to another aspect of the present invention, there is provided a method of manufacturing a semiconductor device, comprising: preparing a master batch chip by mixing a hydrophilic polymer, a conductive polymer, a fiber-forming polymer, and an ionomer; And a step of directly or mixedly spinning the master batch chip.
In the permanent antistatic fiber produced by the manufacturing method of the present invention, when conductive materials are uniformly present in a net structure in the fiber due to heat during melt spinning, static electricity is generated when electricity is discharged inside the fiber, The effect of the present invention is less affected by the external atmosphere conditions and less affected by the deterioration of the physical properties of the fibers, and more permanent and stable electrostatic performance can be exhibited in comparison with the conventional electrostatic discharge principle in which static electricity is discharged by moisture on the surface of the fiber.
FIG. 1 is a photograph of a section of a fiber produced according to an embodiment of the present invention taken by an electron microscope. FIG.
Hereinafter, embodiments of the present invention will be described in more detail with reference to examples and the like. In the following description of the present invention, a detailed description of known general functions or configurations will be omitted.
The present invention relates to a fiber in which conductive material is uniformly distributed in a net structure in a fiber and electricity can be discharged from the inside of the fiber when static electricity is generated, thereby exhibiting permanent antistatic property.
The permanent antistatic fiber according to one embodiment of the present invention comprises a hydrophilic polymer, a conductive polymer, a fiber-forming polymer, and an ionomer. Herein, the permanent antistatic fiber is the permanent antistatic fiber according to the present invention, wherein the fiber comprises 2 to 5% by weight of the hydrophilic polymer; 5 to 6% by weight of a conductive polymer; 80 to 90% by weight of a fiber-forming polymer; And 3 to 10% by weight of an ionomer.
In the permanent antistatic fiber according to one embodiment of the present invention, the hydrophilic polymer may be selected from the group consisting of polyethylene glycol, polyvinyl alcohol, polyvinyl acetate, and derivatives thereof, though not limited thereto. The conductive polymer may be selected from the group consisting of polyaniline, polyacetylene, polypyrrole, polythiophene, polysulfuronitride, and derivatives thereof, and the fiber-forming polymer may be a polyolefin-based or polyamide-based resin.
In the permanent antistatic fiber according to the present invention, the ionomer may be represented by the following formula (1) or (2).
[Chemical Formula 1]
(m, n is an integer of 1 or more, and M + is any one of the Group 1 elements of the periodic table)
(2)
(m, n is an integer of 1 or more, and M + is any one of the Group 1 elements of the periodic table)
In particular, the ionomer has a good adhesion to other polymers or metal foils, has good adhesion even when contaminated with the preservative component, and is free to disperse freely when the heat is applied as in the melt spinning process. Therefore, the ionomer is copolymerized with or bound to the conductive polymer and the hydrophilic polymer due to the above-mentioned characteristics, and is incorporated into the fiber-forming polymer or the like, thereby allowing the conductive polymer to uniformly exist in the fiber structure in the fiber during heat- As a result, electricity is discharged inside the fiber when static electricity is generated, so that the antistatic property can be expressed regardless of external conditions.
In the permanent antistatic fiber according to the present invention, when the content of the hydrophilic polymer is more than 5% by weight, the viscosity of the polymer during spinning drops sharply and melt spinning is impossible. If less than 2% by weight, the hygroscopicity is insufficient, If the conductive polymer content is more than 6% by weight, there is a problem that it is impossible to spin due to the compatibility with the polymer. If the conductive polymer content is less than 5% by weight, the electric conductivity is lower than the standard value. If the content of the ionomer exceeds 10% by weight, spinning is impossible. If the content of the ionomer is less than 3% by weight, the polymer may not be dispersed.
According to still another aspect of the present invention, there is provided a method for manufacturing a semiconductor device, comprising: preparing a master batch chip by mixing a hydrophilic polymer, a conductive polymer, a fiber-forming polymer, and an ionomer; And a step of directly or mixedly spinning the master batch chip.
In the step of preparing the master batch chip, a hydrophilic polymer, a conductive polymer, a fiber-forming polymer and an ionomer are mixed and extruded after extrusion, extruded by melt mixing, cooled in a cooling water bath and cut into pellets by a cutter The ionomer has a function of allowing the conductive polymer to uniformly exist in a net structure in the fiber by heat, so that electricity is discharged inside the produced fiber itself, and the chargeability is exhibited regardless of external conditions do.
Here, the mixing ratios and kinds of the respective components constituting the master batch chip are as described above.
Subsequently, the master batch chip produced by the above method is melted at a temperature of 240 to 300 ° C, preferably 250 to 290 ° C, extruded through a spinneret, and then cooled and solidified, After passing through rollers, they are subjected to stretching, heat treatment, and relaxation, and then wound up to finally produce yarn. When the spinning temperature is low, the spinning pressure of the spinning is increased. If the spinning temperature is high, excessive thermal cracking may cause the spinning failure.
In the method of manufacturing the permanent antistatic fiber according to an embodiment of the present invention, the step of melt-spinning the master batch chip may melt-spin only the master batch chip or melt-spin the additional fiber-
Hereinafter, a method for producing a permanent antistatic fiber according to the present invention will be described in more detail with reference to examples. It should be understood, however, that the scope of the present invention is not limited to the disclosed embodiments.
Example One
4 g of polyethylene oxide, 10 g of polyethylene dioxide (PEDOT), 6 g of polyethylene-methacrylic acid copolymer and 80 g of a polyester resin were charged into an extruder and mixed and melted at 250 캜 and extruded to obtain a polyester weight To prepare a master batch chip having a weight ratio of 20% by weight.
The thus-prepared master batch chip was spin-coated at a rate of 3600 m / min at 290 ° C using a spinneret at a weight ratio of 50% by weight based on the weight of the polyester resin to prepare a 75 denier / 36 filament yarn
The cross section of the fabricated orthotropic fibers was as shown in Fig. 1, and the physical properties, processability and antistatic performance of the obtained polyester fibers were evaluated and shown in Table 1 below. In the case of functionality, sock knitting and dyeing were performed using a sock knitting machine in a conventional manner, and then the friction voltage was measured.
Example 2
5 g of polyethylene oxide, 5 g of polyethylene dioxide (PEDOT), 10 g of polyethylene-methacrylic acid copolymer and 80 g of polyester resin were charged into an extruder, followed by mixing and melting at 250 캜 and extruded to prepare a conductive material 20% by weight of a master batch chip.
The master batch chip thus produced was spin-spinned at 290 占 폚 at a rate of 3600 m / min to produce 75 denier / 36 filament yarn.
The physical properties, processability and antistatic performance of the fabricated orthotropic polyester fibers were evaluated and are shown in Table 1 below. In the case of functionality, sock knitting and dyeing were performed using a sock knitting machine in a conventional manner, and then the friction voltage was measured.
Example 3
4 g of fatty acid glycerol, 6 g of polypyrrole, 10 g of polyethylene-methacrylic acid copolymer and 80 g of polyester resin were charged into an extruder and mixed and melted at 250 ° C. and extruded to obtain a conductive material having a weight of 20 % ≪ / RTI > master batch chip.
The master batch chip thus produced was spin-spinned at 290 占 폚 at a rate of 3600 m / min to produce 75 denier / 36 filament yarn.
The physical properties, processability and antistatic performance of the fabricated orthotropic polyester fibers were evaluated and are shown in Table 1 below. In the case of functionality, sock knitting and dyeing were performed using a sock knitting machine in a conventional manner, and then the friction voltage was measured.
Comparative Example One
0.3 g of polyethylene oxide, 0.7 g of polypyrrole, 9 g of polyethylene-methacrylic acid copolymer, and 90 g of polyester resin were charged into an extruder and mixed and melted at 250 캜 and extruded to obtain a conductive material having a weight of 20 % ≪ / RTI > master batch chip.
The master batch chip thus produced was spin-spinned at 290 占 폚 at a rate of 3600 m / min to produce 75 denier / 36 filament yarn.
The physical properties, processability and antistatic performance of the fabricated orthotropic polyester fibers were evaluated and are shown in Table 1 below. In the case of functionality, sock knitting and dyeing were performed using a sock knitting machine in a conventional manner, and then the friction voltage was measured.
Comparative Example 2
9 g of polyethylene oxide, 1 g of a polyethylene-methacrylic acid copolymer and 90 g of a polyester resin were charged in an extruder, followed by mixing and melting at 250 ° C. and extruded to obtain a master batch having a conductive material of 20 wt% Chip.
The master batch chip thus produced was spin-spinned at 290 占 폚 at a rate of 3600 m / min to produce 75 denier / 36 filament yarn.
The physical properties, processability and antistatic performance of the fabricated orthotropic polyester fibers were evaluated and are shown in Table 1 below. In the case of functionality, sock knitting and dyeing were performed using a sock knitting machine in a conventional manner, and then the friction voltage was measured.
(weight%)
(weight%)
(weight%)
Property evaluation method
One. Worcester Uniformity (%)
Evenness Tester; Manufacturer: Keisokki Kogyo Co., Ltd.; (%) Was measured using a model name: KET-80V / C.
2. Radiation Operability
The radiator was operated for 120 hours, and the ratio of the full cakes to the total number of production was measured based on the volume of 9 kg as the fullness ratio.
3. Evaluation of Friction Voltage
According to KS K 0555, the size of the test piece was 4 cm x 8 cm, and the magnitude (V) after 60 seconds from the start of rubbing was measured six times
As described above, the permanent antistatic fiber produced by the production method of the present invention has a net structure in which the conductive materials are uniformly dispersed in the fiber by heat during melt spinning by the ionomer, so that electricity is discharged inside the fiber when static electricity is generated It is less influenced by the external atmosphere condition than the conventional electrostatic discharge principle in which static electricity is discharged by the moisture on the surface of the fiber, and it has less influence on the deterioration of the fiber properties and can exhibit more permanent and stable electrostatic discharge performance.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. This will be obvious.
Claims (13)
The fiber comprises 2 to 5% by weight of a hydrophilic polymer; 5 to 6% by weight of a conductive polymer; 80 to 90% by weight of a fiber-forming polymer; And 3 to 10% by weight of an ionomer.
[Chemical Formula 1]
(m, n is an integer of 1 or more, and M + is any one of the Group 1 elements of the periodic table)
(2)
(m, n is an integer of 1 or more, and M + is any one of the Group 1 elements of the periodic table)
Directly or mixedly spinning the master batch chip, comprising the steps of:
Wherein the master batch chip comprises 2 to 5% by weight of a hydrophilic polymer, 5 to 6% by weight of a conductive polymer, 3 to 10% by weight of an ionomer and 80 to 90% by weight of a polyolefin-based or polyamide-based or polyester- A method for manufacturing permanent antistatic fibers.
[Chemical Formula 1]
(m, n is an integer of 1 or more, and M + is any one of the Group 1 elements of the periodic table)
(2)
(m, n is an integer of 1 or more, and M + is any one of the Group 1 elements of the periodic table)
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| US6692823B2 (en) * | 2001-12-19 | 2004-02-17 | 3M Innovative Properties Company | Microfibrillated articles comprising hydrophillic component |
| KR101213899B1 (en) * | 2010-12-30 | 2012-12-18 | 주식회사 효성 | Method for Manufacturing Multi-Function Nylon Fiber and Multi-Function Nylon Fiber Made Thereof |
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