CN101736418A - Method for manufacturing polyphenylene sulfide meltblown fiber products - Google Patents
Method for manufacturing polyphenylene sulfide meltblown fiber products Download PDFInfo
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Abstract
The invention discloses a method for manufacturing polyphenylene sulfide meltblown fiber products, which is characterized in that polyphenylene sulfide resin meltblown fibers are used as the raw materials, undergo resin premixing and are melted, pelletized, chipped, melted, extruded and blown by a double-screw extruder after high-speed stirring and mixing and then are cut by 30-40MPa of high pressure nitrogen to obtain polyphenylene sulfide meltblown short fibers which are rapidly cooled by the nitrogen at 8-10 DEG C; and in the process of resin premixing, 98.5-99.5% of polyphenylene sulfide resins with weight-average molecular weight between 50 thousand and 60 thousand and molecular weight distribution coefficient between 1.8 and 19, and 0.5-1.5% of antistatic agents are employed. The polyphenylene sulfide meltblown fibers, non-woven fabrics and fiber paper manufactured by the invention are widely used in such high technology fields as environmental protection, electronics, aviation and the like.
Description
Affiliated technical field
The invention belongs to special fibre and make field, the especially manufacture method of fiber-grade polyphenyl thioether meltblown fibers.
Background technology
Polyphenylene sulfide has the heat endurance under excellent chemical proofing and the high temperature, and has fire-retardant, insulation, radiation hardness and favorable mechanical performance; For enlarging the scope of application of this material, the researchers of various countries make it Fibrotic new method in searching always.
Silk, stretching heat setting method are made in the fusion that discloses a kind of linear high molecular weight polyphenylene sulfide fiber grade resins in Chinese patent CN1603477; Chinese patent CN1876906 discloses the long stapled manufacture method of polyphenylene sulfide; Introduced polyphenylene sulfide among U.S. Pat 5405695 and the US4500706 and made a method of the polyphenylene sulfide fibre that obtains by fusion.The shortcoming of these methods is that the mechanical strength of product fiber is still not high enough, though US5405695 is divided into three zones with the heating region of fusion-a make extruder, only may produce long fiber, and its mechanical property is undistinct yet; Above patent all is to adopt the fiber-grade polyphenyl thioether resin to come melt spinning, and domestic and foreign literature does not all adopt polyphenylene sulfide to melt and spray spinning, and it all is to be used to be injection molded among the meltblown fibers thing of mould, extrusion moulding or film.
In present various countries' patent of invention, also do not have the document of polyphenylene sulfide meltblown fiber, and the raw material of meltblown fibers mainly are polypropylene, polyethylene, polypropylene cyanogen etc.
The objective of the invention is to explore the Fibrotic new method of polyphenylene sulfide, explore the optimum process condition of making the polyphenylene sulfide meltblown fiber, it is more excellent at mechanical strength to make polyphenylene sulfide manufacture meltblown fibers, simultaneously, reaches higher fiber serviceability temperature and limited oxygen index.
Summary of the invention
A kind of manufacture method of polyphenylene sulfide meltblown fiber products, with polyphenylene sulfide meltblown fibers material is raw material, melt extrude the high pressure nitrogen that sprays silk, uses 30-40Mpa through resin premixed material processing, double screw extruder fusion, granulation, section, the polyphenylene sulfide fibre of ejection is cut into the staple fibre of 5-25mm, thereby obtain the polyphenylene sulfide meltblown fiber, comprise in the process conditions:
1) during resin premixed material was handled, raw material adopted: 98.5-99.5% polyphenylene sulfide, antistatic additive 0.5-1.5% by the extruder extrusion molding, obtain the section of resin meltblown fibers behind the high-speed stirred batch mixing; The weight average molecular weight of the polyphenylene sulfide that requires is 5-6 ten thousand, and the molecular weight distribution coefficient is between 1.8-1.9.
2) melt extruding spray strand spare comprises: by 1) the meltblown fibers resin slicer that obtains melt extrudes the spray silk, and the angle of high pressure nitrogen ejection and polyphenylene sulfide spray thread become 20-30 °; The temperature of high pressure nitrogen remains on 110-120 ℃ simultaneously.Spouting velocity remains on 860-880m/s.The temperature of cool nitrogen remains on 8-10 ℃
3) by 2) staple fibre that obtains of step under the conveying of gases at high pressure, send into nonwoven fabric and fibrous paper production process by the path.
Add quaternary ammonium salt, amine compounds in the present invention, purpose is other physical characteristic of not losing polyphenylene sulfide when the polyphenylene sulfide meltblown fibre forming, especially antistatic property, thus the crystallization rate of polyphenylene sulfide is improved, and surface state is good when being shaped simultaneously.In order to reach above purpose, the antistatic additive that uses comprises in the present invention: dodecanamide propyl trimethyl ammonium Methylsulfate salt, N, two (2-the ethoxy)-N-of N-(3 '-dodecyloxy-2 ' hydroxypropyl) first ammonium Methylsulfate salt, trihydroxyethyl methyl quaternary ammonium Methylsulfate salt, N, N-cetyl ethyl morpholine sulfuric acid second chromic salts, maleic anhydride and other monomer copolymer salts, polyacrylate, poly styrene sulfonate, stearamide propyl dimethyl-beta-hydroxyethyl amine dihydrogen orthophosphate, macrogol ester or ethers, polyol fatty acid ester, fatty acid alkanol amides, fatty acid ethoxy ether, alkyl dimethyl benzyl quaternary ammonium salt, dodecyl benzyl dimethyl ammonium chloride, octadecyl dimethyl ethoxy perchlorate, octadecyl dimethyl ethoxy laruate, 18 acyl aminoethyl diethyl benzyl ammonium chlorides, 18 acyl aminoethyl trimethyl ammonium sulfate, myristoyl aminopropyl dimethyl benzyl ammonium chloride, 18 acyl aminoethyl diethyl benzyl ammonium chlorides, polyphenylene oxides vinethene phosphate diethylamine, polyphenylene oxides vinethene phosphate triethylamine, fatty alcohol ether (7) phosphate triethanolamine salt, fatty alcohol ether (9) phosphate triethanolamine salt, nonyl phenol ether phosphoric acid monoesters ethanolamine salt, nonyl phenol polyphenylene oxides vinethene phosphate diethanolamine salt, one or more compounds of nonyl phenol polyphenylene oxides vinethene phosphate triethanolamine salt; Especially with nonyl phenol ether phosphoric acid monoesters ethanolamine salt, nonyl phenol polyphenylene oxides vinethene phosphate diethanolamine salt, nonyl phenol polyphenylene oxides vinethene phosphate triethanolamine salt, dodecanamide propyl trimethyl ammonium Methylsulfate salt, N, two (2-the ethoxy)-N-of N-(3 '-dodecyloxy-2 '-hydroxypropyl) first ammonium Methylsulfate salt, trihydroxyethyl methyl quaternary ammonium Methylsulfate salt, alkyl dimethyl benzyl quaternary ammonium salt, dodecyl benzyl dimethyl ammonium chloride, octadecyl dimethyl ethoxy perchlorate, octadecyl dimethyl ethoxy laruate, 18 acyl aminoethyl diethyl benzyl ammonium chlorides, 18 acyl aminoethyl trimethyl ammonium sulfate, myristoyl aminopropyl dimethyl benzyl ammonium chloride; With dodecanamide propyl trimethyl ammonium Methylsulfate salt, N, two (2-the ethoxy)-N-of N-(3 '-dodecyloxy-2 '-hydroxypropyl) effect of antistatic additive of one of first ammonium Methylsulfate salt, trihydroxyethyl methyl quaternary ammonium Methylsulfate salt is best.
The present invention under the situation of not adding any toughening material, adopts low temperature nitrogen to force to cool off fiber in order to improve the toughness of fiber on the one hand, its objective is the degree of crystallinity that reduces fiber, thereby improves the toughness of polyphenylene sulfide meltblown fiber; On the other hand, by the fiber after this PROCESS FOR TREATMENT, when adopting static spreading staple fibre to make nonwoven fabric and fibrous paper, the cloth of coming out in the shop or the thickness of fibrous paper are even, can not cause the phenomenon of any fiber accumulations, produced like this nonwoven fabric and fibrous paper quality are even, and effect is very good, and it all can reach the perfect performance index simultaneously.
Brief description of the process of the present invention:
Fiber-grade polyphenyl thioether resin of the present invention preliminary treatment is to adopt: at a certain temperature, at first handle the oligomer of removing in the resin, cyclic compound, byproduct of reaction, reaction promoter, with other impurity, the percentage of these materials in resin is no more than 0.1%, then with antistatic additive dodecanamide propyl trimethyl ammonium Methylsulfate salt, N, two (2-the ethoxy)-N-of N-(3 '-dodecyloxy-2 '-hydroxypropyl) first ammonium Methylsulfate salt, one of trihydroxyethyl methyl quaternary ammonium Methylsulfate salt is added in the polyphenylene sulfide, stir by homogenizer, pass through granulation formation again, and then carry out dried, the water content in the polyphenylene sulfide meltblown fibre object is dropped to below 0.3%.
In the manufacturing process flow of fiber-grade polyphenyl thioether meltblown fibers of the present invention, the temperature range of each heating region of extruder, temperature fluctuation is controlled at 5 ℃ of scopes generally speaking.Each warm area has isometric substantially physical length.Heating temperature curve is normal distribution curve substantially, simultaneously vacuumizes between the 4th district and the 5th district, further to remove oligomer, cyclic compound and other volatile impurity of having vaporized; The all melts pipeline all must insulation, and its temperature remains on the polyphenylene sulfide fusing point in 15-60 ℃ the scope; Measuring pump variable-frequency motor frequency is limited by the line density of what and fiber of feeding, and its frequency is generally within the scope of 2-60 hertz; General spinning pack pressure remains between the 1-38.0Mpa, spin in the scope that the oven temperature, degree also must remain on the polyphenylene sulfide meltblown fibre object fusing point 15-60 ℃, pretreatment temperature also will remain on the polyphenylene sulfide fusing point in 15-60 ℃ the scope before spinning pack used; The high pressure nitrogen temperature of spinning nozzle remains on 110-120 ℃, on the one hand will be according to suitably regulating when ground temperature, and the line density of fiber is also regulated according to the size of its pressure and the spouting velocity of gas on the other hand.The temperature of cool nitrogen remains on 8-10 ℃.
Description of drawings is as follows
Fig. 1: the fibre property mark sheet that is the polyphenylene sulfide meltblown fiber.
Fig. 2, be the performance characteristic table of the nonwoven fabric of polyphenylene sulfide meltblown fiber.
Fig. 3, be the performance characteristic table of the fibrous paper of polyphenylene sulfide meltblown fiber.
The specific embodiment:
The polyphenylene sulfide meltblown fabric nonwoven cloth, adopting process is: the resin premixed processing of fiber-grade polyphenyl thioether---vacuumizes, the double screw extruder fusion---melt metering pump---forced filtration, spinning pack---strand melts and sprays---high pressure nitrogen cutting---fabric nonwoven cloth.Adopt following process conditions.
In resin, be no more than 0.1% with oligomer, cyclic compound, byproduct of reaction, reaction promoter impurity content, weight average molecular weight 50,000 and its polydispersity coefficient be 1.88 fiber-grade polyphenyl thioether resin 99.5kg, 0.5kg (0.5%) antistatic additive antistatic additive dodecanamide propyl trimethyl ammonium Methylsulfate salt adds in the fiber-grade polyphenyl thioether resin, stir by homogenizer, extrude through double screw extruder again, obtain the meltblown fibers resin slicer, then 110---resin drying was handled 2-8 hour under 160 ℃; Carry out dried, the water content in the polyphenylene sulfide is dropped to below 0.3%.
Melting and spraying spinning condition is:
The temperature range of each heating region of extruder: 170 ℃ in first district, 310 ℃ in second district; 320 ℃ in the 3rd district, 330 ℃ in the 4th district, 330 ℃ in the 5th district, 320 ℃ in the 6th district, 310 ℃ of SECTOR-SEVENs, 300 ℃ of Section Eight.
2 hertz of measuring pump variable-frequency motor frequencies, the pressure of spinning pack are at 1.0Mpa, and spinneret orifice is 0.2mm directly, and spinning the case holding temperature is 325 ℃, makes 325 ℃ of temperature; The temperature of 30Mpa high pressure nitrogen is 110 ℃, and cutting angle is 20 °, and speed is 860m/s.The gained staple fibre enters blowing duct, and the temperature of cool nitrogen remains on 9 ℃; Process conditions above adopting melt and spray the fiber-grade polyphenyl thioether resin makes silk, makes the polyphenylene sulfide meltblown fiber; To obtain polyphenylene sulfide meltblown fiber spreading then, to become thickness be the nonwoven fabric germule of 1.2mm, and to send into temperature be 230-260 ℃ insulation path, after the path comes out from insulation, through hot press hot pressing, send into trimmer again and carry out shaping, obtain the nonwoven fabric of 1mm thickness, the performance characteristic of fiber, nonwoven fabric is shown in Fig. 1,2.
Weight average molecular weight 60,000 and its polydispersity coefficient be 1.9 fiber-grade polyphenyl thioether resin 99.4kg, with 0.6kg (0.6%) antistatic additive antistatic additive N, two (2-the ethoxy)-N-of N-(3 '-dodecyloxy-2 '-hydroxypropyl) first ammonium Methylsulfate salt adds in the fiber-grade polyphenyl thioether resin.All the other process control conditions are identical with example 1.
10 hertz of measuring pump variable-frequency motor frequencies, the pressure of spinning pack is at 15.0Mpa. spinneret orifice footpath 0.3mm, and spinning the case holding temperature is 335 ℃, makes 335 ℃ of temperature; The temperature of 40Mpa high pressure nitrogen is 120 ℃, and angle is 30 °, and speed is 880m/s, and the temperature of cool nitrogen remains on 8 ℃, and the process conditions above adopting melt and spray the fiber-grade polyphenyl thioether resin makes silk, the polyphenylene sulfide meltblown fiber that makes; To obtain polyphenylene sulfide meltblown fiber spreading then, to become thickness be the nonwoven fabric germule of 2.2mm, and to send into temperature be 230-260 ℃ insulation path, after the path comes out from insulation, through hot press hot pressing, send into trimmer again and carry out shaping, obtain the nonwoven fabric of 2mm thickness, the performance characteristic of its fiber, nonwoven fabric shows in Fig. 1,2.
Weight average molecular weight 50,000 and its polydispersity coefficient be 1.86 fiber-grade polyphenyl thioether resin 98.5kg, 1.5kg (1.5%) antistatic additive trihydroxyethyl methyl quaternary ammonium Methylsulfate salt is added in the fiber-grade polyphenyl thioether resin. all the other process conditions are identical with example 1
22 hertz of measuring pump variable-frequency motor frequencies, the pressure of spinning pack is at 28.0Mpa. spinneret orifice footpath 0.5mm, and spinning the case holding temperature is 315 ℃, makes 315 ℃ of temperature; The temperature of 33Mpa high pressure nitrogen is 110 ℃, and angle is 25 °, and speed is 871m/s, and the temperature of cool nitrogen remains on 8 ℃, and the process conditions above adopting melt and spray the fiber-grade polyphenyl thioether resin makes silk, the polyphenylene sulfide meltblown fiber that makes; To obtain polyphenylene sulfide meltblown fiber spreading then, to become thickness be the nonwoven fabric germule of 3.2mm, and to send into temperature be 230-260 ℃ insulation path, after the path comes out from insulation, through hot press hot pressing, send into trimmer again and carry out shaping, obtain the nonwoven fabric of 3mm thickness, the performance characteristic of its fiber, nonwoven fabric shows in Fig. 1,2.
Weight average molecular weight 5.6 ten thousand and its polydispersity coefficient be 1.85 fiber-grade polyphenyl thioether resin 99kg, with 1.0kg (1.0%) antistatic additive N, two (2-the ethoxy)-N-of N-(3 '-dodecyloxy-2 '-hydroxypropyl) first ammonium Methylsulfate salt adds in the fiber-grade polyphenyl thioether resin, stir by homogenizer, pass through granulation formation again.All the other process conditions are identical with example 1.
32 hertz of measuring pump variable-frequency motor frequencies, the pressure of spinning pack is at 33.0Mpa. spinneret orifice footpath 0.8mm, and spinning the case holding temperature is 335 ℃, makes 335 ℃ of temperature; The temperature of 38Mpa high pressure nitrogen is 113 ℃, and angle is 22 °; Speed is 878m/s, and the temperature of cool nitrogen remains on 8 ℃, and the process conditions above adopting melt and spray the fiber-grade polyphenyl thioether resin makes silk, the polyphenylene sulfide meltblown fiber that makes; To obtain polyphenylene sulfide meltblown fiber spreading then, to become thickness be the nonwoven fabric germule of 4.2mm, and to send into temperature be 230-260 ℃ insulation path, after the path comes out from insulation, through hot press hot pressing, send into trimmer again and carry out shaping, obtain the nonwoven fabric of 4mm thickness, the performance characteristic of its fiber, nonwoven fabric shows in Fig. 1,2.
Weight average molecular weight 60,000 and its polydispersity coefficient be 1.88 fiber-grade polyphenyl thioether resin 98.7kg with 1.3kg (1.3%) antistatic additive dodecanamide propyl trimethyl ammonium Methylsulfate salt, add in the fiber-grade polyphenyl thioether resin.Other condition is with embodiment 1.
2 hertz of measuring pump variable-frequency motor frequencies, the pressure of spinning pack is at 1.0Mpa. spinneret orifice footpath 0.1mm, and spinning the case holding temperature is 315 ℃, makes 315 ℃ of temperature; The temperature of 33Mpa high pressure nitrogen is 116 ℃, and angle is 26 °, and speed is 866m/s, and the temperature of cool nitrogen remains on 10 ℃, and the process conditions above adopting melt and spray the fiber-grade polyphenyl thioether resin makes silk, makes ground polyphenylene sulfide meltblown fiber; To obtain polyphenylene sulfide meltblown fiber spreading then, to become thickness be the fibrous paper germule of 0.06mm, and to send into temperature be 230-260 ℃ insulation path, after the path comes out from insulation, through hot press hot pressing, send into trimmer again and carry out shaping, obtain the fibrous paper of 0.05mm thickness, the performance characteristic of its fiber, fibrous paper shows in Fig. 1,3.
Weight average molecular weight 5.8 ten thousand and its polydispersity coefficient be 1.82 fiber-grade polyphenyl thioether resin 98.5kg, with 1.5kg (1.5%) antistatic additive dodecanamide propyl trimethyl ammonium Methylsulfate salt, add in the fiber-grade polyphenyl thioether resin.All the other conditions are with example 1.
5 hertz of measuring pump variable-frequency motor frequencies, the pressure of spinning pack is at 8.0Mpa. spinneret orifice footpath 0.3mm, and spinning the case holding temperature is 325 ℃, makes 325 ℃ of temperature; The temperature of 36Mpa high pressure nitrogen is 120 ℃, and angle is 30 °, and speed is 868m/s, and the temperature of cool nitrogen remains on 9 ℃, and the process conditions above adopting melt and spray the fiber-grade polyphenyl thioether resin makes silk, makes ground polyphenylene sulfide meltblown fiber; To obtain polyphenylene sulfide meltblown fiber spreading then, to become thickness be the fibrous paper germule of 0.08mm, and to send into temperature be 230-260 ℃ insulation path, after the path comes out from insulation, through hot press hot pressing, send into trimmer again and carry out shaping, obtain the fibrous paper of 0.07mm thickness, the performance characteristic of its fiber, fibrous paper shows in Fig. 1,3.
Weight average molecular weight 5.8 ten thousand and its polydispersity coefficient be 1.87 fiber-grade polyphenyl thioether resin 98.9kg, then with 1.1kg (1.1%) antistatic additive N, two (2-the ethoxy)-N-of N-(3 '-dodecyloxy-2 '-hydroxypropyl) first ammonium Methylsulfate salt adds in the fiber-grade polyphenyl thioether resin.All the other conditions are with example 1.
4 hertz of measuring pump variable-frequency motor frequencies, the pressure of spinning pack is at 3.0Mpa. spinneret orifice footpath 0.2mm, and spinning the case holding temperature is 335 ℃, makes 335 ℃ of temperature; The temperature of 36Mpa high pressure nitrogen is 116 ℃, and angle is 28 °, and speed is 876m/s, and the temperature of cool nitrogen remains on 10 ℃, and the process conditions above adopting melt and spray the fiber-grade polyphenyl thioether resin makes silk, makes ground polyphenylene sulfide meltblown fiber; To obtain polyphenylene sulfide meltblown fiber spreading then, to become thickness be the fibrous paper germule of 0.4mm, and to send into temperature be 230-260 ℃ insulation path, after the path comes out from insulation, through hot press hot pressing, send into trimmer again and carry out shaping, obtain the fibrous paper of 0.3mm thickness, the performance characteristic of its fiber, fibrous paper shows in Fig. 1,3.
Weight average molecular weight 5.3 ten thousand and its polydispersity coefficient be 1.83 fiber-grade polyphenyl thioether resin 99.3kg, then with 0.7kg (0.7%) antistatic additive N, two (2-the ethoxy)-N-of N-(3 '-dodecyloxy-2 '-hydroxypropyl) first ammonium Methylsulfate salt adds in the fiber-grade polyphenyl thioether resin.All the other conditions are identical with example 1.
4 hertz of measuring pump variable-frequency motor frequencies, the pressure of spinning pack is at 5.0Mpa. spinneret orifice footpath 0.1mm, and spinning the case holding temperature is 320 ℃, makes 320 ℃ of temperature; The temperature of 33Mpa high pressure nitrogen is 110 ℃, and angle is 30 °, and speed is 868m/s, and the temperature of cool nitrogen remains on 8 ℃, and the process conditions above adopting melt and spray the fiber-grade polyphenyl thioether resin makes silk, makes ground polyphenylene sulfide meltblown fiber; To obtain polyphenylene sulfide meltblown fiber spreading then, to become thickness be the fibrous paper germule of 0.6.mm, and to send into temperature be 230-260 ℃ insulation path, after the path comes out from insulation, through hot press hot pressing, send into trimmer again and carry out shaping, obtain the fibrous paper of 0.5mm thickness, the performance characteristic of its fiber, fibrous paper is shown in Fig. 1,3.
The meltblown fibers that the present invention produces is through after the heat-set treatment, and the characteristic of the polyphenylene sulfide meltblown fiber that obtains is compared with polyphenylene sulfide fibre and obtained to draw a conclusion:
The physical property of fiber compares: the fracture strength of meltblown fibers exceeds nearly 1.5-2.0 doubly.Limited oxygen index is up to 43%.Because behind the antistatic additive, hydroscopicity has certain rising, serviceability temperature increases, and chemical resistance also has different raisings, also reduces polyphenylene sulfide fibre simultaneously and occurs phenomenons such as fracture of wire in spinning process.
It should be noted that, the inventive method from the back processing of resinous principle, the temperature control that melt extrudes spray silk and strand in conjunction with last for realizing that purpose of the present invention provides a whole set of process conditions, in specific implementation process, the realization of some process conditions is to occur with the form of certain excursion, and this depends on the weather conditions of implementing the place and the difference of material.In addition, the control accuracy of process conditions itself is also brought certain floating for concrete technic index of the invention process.For example, it should be the nominal error that can expect during this method is implemented that about 5 ℃ excursion appears in each warm area of spray silk extruder and the variations in temperature of crystallization solidification temperature, this variation also should be the inventive method should comprise.
Claims (2)
1. the manufacture method of a polyphenylene sulfide meltblown fiber products, with polyphenylene sulfide meltblown fibers material is raw material, melt extrude the spray silk, cut into staple fibre through resin premixed material processing, double screw extruder fusion, resin slicer, section with the 30-40Mpa high pressure nitrogen, thereby obtain the polyphenylene sulfide meltblown fiber, comprise in the process conditions:
1) during resin premixed material was handled, raw material adopted: 98.5-99.5% polyphenylene sulfide, antistatic additive 0.5-1.5%; Behind the high-speed stirred batch mixing,, obtain setting the section of polyphenylene sulfide fat by the double screw extruder extruding pelletization; The weight average molecular weight of described polyphenylene sulfide is 5-6 ten thousand; The molecular weight distribution coefficient is at 1.8-1.9;
2) melt extruding spray strand spare comprises: spouting velocity remains on 860-880m/s, and the temperature that is used for the high pressure nitrogen of staple fibre cutting remains on 110-120 ℃, and the angle of its ejection becomes 20-30 ° with polyphenylene sulfide spout axis; The gained staple fibre enters blowing duct, is cooled off by 8-10 ℃ of nitrogen;
3) by 2) staple fibre that obtains of step under the conveying of gases at high pressure, send into nonwoven fabric and fibrous paper production process by the path.
2. according to the manufacture method of the described a kind of polyphenylene sulfide meltblown fiber products of claim 1, it is characterized in that, used antistatic one of following material that can be: dodecanamide propyl trimethyl ammonium Methylsulfate salt, N, two (2-the ethoxy)-N-of N-(3 '-dodecyloxy-2 '-hydroxypropyl) first ammonium Methylsulfate salt, trihydroxyethyl methyl quaternary ammonium Methylsulfate salt.
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