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CN-122013372-A - High-temperature-resistant antistatic oiling agent special for polyphenylene sulfide spinning and preparation method and application thereof

CN122013372ACN 122013372 ACN122013372 ACN 122013372ACN-122013372-A

Abstract

The invention discloses a high-temperature-resistant antistatic oiling agent special for polyphenylene sulfide spinning and a preparation method and application thereof, belonging to the technical field of chemical fiber oiling agents. The oil solution comprises an in-situ formed cluster dispersion, and the dispersion is prepared by shearing and dispersing nano metal conductive particles and high polymer microspheres in high-temperature resistant base oil consisting of tetrapolyricinoleate and nonylphenol polyoxyethylene ether for 30 minutes at the rotating speed of 200-400rpm under the conditions of 70-80 ℃ and absolute pressure of less than or equal to 0.05 MPa. The cluster dispersion has an average hydrodynamic radius of 80-120nm, and has a particle size increase of 15% or less after 30 minutes at a constant temperature of 260 ℃ and shows excellent high-temperature stability. The preparation method comprises three steps of oil phase construction, cluster in-situ formation and emulsification shaping. The oiling agent is particularly suitable for the high-temperature high-speed spinning process of polyphenylene sulfide fibers at the spinning temperature of more than 300 ℃ and the channel temperature of 220-260 ℃, and can effectively solve the problems of antistatic failure and oiling agent decomposition at high temperature.

Inventors

  • GU JIAXIANG
  • XU JIUFENG
  • LU WEIDONG
  • XU YUBIN

Assignees

  • 苏州新任科技有限公司
  • 江苏新任环保科技有限公司

Dates

Publication Date
20260512
Application Date
20260115

Claims (9)

  1. 1. A high-temperature-resistant antistatic oiling agent special for polyphenylene sulfide spinning is characterized in that the oiling agent comprises a cluster dispersion; the cluster dispersion is formed in situ by shearing and dispersing nano metal conductive particles and high polymer microspheres in high temperature resistant base oil containing tetra-polyricinoleate and nonylphenol polyoxyethylene ether for 30 minutes at a speed of 200-400rpm under the conditions of 70-80 ℃ and absolute pressure of less than or equal to 0.05 MPa; the cluster dispersion has an average hydrodynamic radius of 80-120 nm and a particle size increase of less than or equal to 15% after 30 minutes at a constant temperature of 260 ℃.
  2. 2. The high-temperature-resistant antistatic oiling agent special for polyphenylene sulfide spinning according to claim 1, wherein the weight ratio of the tetra-polyricinoleate to the nonylphenol polyoxyethylene ether is (35-50): 10-15.
  3. 3. The high-temperature-resistant antistatic oiling agent special for polyphenylene sulfide spinning according to claim 1, wherein the weight ratio of the nano metal conductive particles to the high-molecular polymer microspheres is ((5-8): 3-5).
  4. 4. The high-temperature-resistant antistatic oiling agent special for polyphenylene sulfide spinning according to claim 3, wherein the nano metal conductive particles are nano silver/silicon dioxide composite particles, wherein the diameter of the nano silver particles is less than or equal to 50nm, and the specific surface area of the silicon dioxide carrier is more than or equal to 200m 2 /g.
  5. 5. The high-temperature-resistant antistatic oiling agent special for polyphenylene sulfide spinning according to claim 1, wherein the high-molecular polymer microspheres are polyvinyl chloride grafted maleic anhydride microspheres, and the grafting rate of maleic anhydride is more than or equal to 5wt.%.
  6. 6. The high-temperature-resistant antistatic oiling agent special for polyphenylene sulfide spinning according to claim 1, which is characterized by comprising the following components in percentage by weight: 35wt.% to 50wt.% of tetrapolyricinoleate; 5-8 wt.% of nano silver/silica composite particles; 3-5 wt.% of polyvinyl chloride grafted maleic anhydride microspheres; 10-15 wt.% of nonylphenol polyoxyethylene ether; 4-6 wt.% of fatty alcohol polyoxyethylene ether; 3-5 wt.% of a high temperature resistant additive; 15wt.% to 27wt.% of a lubricant; 1wt.% to 2.5wt.% of antioxidant 0.2Wt.% to 0.5wt.% of a pH adjuster; The balance of deionized water.
  7. 7. The high-temperature-resistant antistatic oiling agent special for polyphenylene sulfide spinning according to claim 6, wherein the high-temperature-resistant additive comprises triphenyl phosphate and calcium stearate.
  8. 8. A method for preparing the high-temperature-resistant antistatic oiling agent special for polyphenylene sulfide spinning according to any one of claims 1 to 7, which is characterized by comprising the following steps: S1, constructing an oil phase, namely stirring and mixing tetrapolyricinoleate, nonylphenol polyoxyethylene ether and a high-temperature-resistant additive for 30 minutes at 70-80 ℃ under the absolute pressure of less than or equal to 0.05MPa to form a uniform oil phase; S2, forming clusters in situ, namely adding nano metal conductive particles and high polymer microspheres into the uniform oil phase obtained in the S1 under the condition that the temperature is maintained at 70-80 ℃ and the vacuum degree is less than or equal to 0.05 MPa, and continuously stirring and mixing for 30 minutes at the shearing speed of 200-400rpm to ensure that the nano metal conductive particles and the high polymer microspheres are fully dispersed and form cluster dispersion with the average hydrodynamic radius of 80-120 nm; s3, emulsifying and shaping, namely cooling the product obtained in the step S2 to below 40 ℃, adding fatty alcohol polyoxyethylene ether, a pH regulator and deionized water, and emulsifying for 60 minutes under normal pressure to obtain a finished oil agent.
  9. 9. The application of the high-temperature-resistant antistatic oiling agent special for polyphenylene sulfide spinning according to any one of claims 1 to 7 in a high-temperature and high-speed spinning process of polyphenylene sulfide fibers, wherein the spinning temperature exceeds 300 ℃ and the channel temperature is 220 to 260 ℃.

Description

High-temperature-resistant antistatic oiling agent special for polyphenylene sulfide spinning and preparation method and application thereof Technical Field The invention belongs to the technical field of chemical fiber oiling agents, and particularly relates to a high-temperature-resistant antistatic oiling agent special for polyphenylene sulfide spinning, and a preparation method and application thereof. Background Polyphenylene Sulfide (PPS) fibers have an irreplaceable position in the industrial textile field such as high-temperature filtration, environmental protection, and the like, due to their excellent high temperature resistance, chemical corrosion resistance, and excellent mechanical strength. However, these superior properties of PPS fibers also present significant challenges to their spinning process. The melting point of PPS resin is up to 285 ℃, the spinning process is required to finish melting and extrusion at a high temperature of more than 300 ℃, and the primary fiber is stretched and shaped in a channel of 220-260 ℃. Under the extremely high-temperature and dry environment, the conventional spinning oil has two main core limitations: First, the heat resistance is insufficient. Traditional oiling agents based on mineral oil or common synthetic ester are extremely volatile and thermally oxidized and decomposed, so that oil films on the surfaces of fibers are broken, fuzziness and breakage rate are increased rapidly, decomposed products are easy to coke and carbonize on equipment such as a hot roller, a spinning system is polluted, and production continuity and product quality are seriously affected. And secondly, the antistatic performance fails in a high-temperature drying environment. PPS itself is an excellent insulator (volume resistivity > 10++15Ω & cm), and a large amount of static charge due to friction is difficult to dissipate in high-speed spinning. Conventional ionic surfactant antistatic agents (e.g., quaternary ammonium salts, alkyl sulfonates, etc.) generally rely on a "hygroscopic conductive mechanism," i.e., the formation of an ion conductive layer on the surface of the fiber by absorbing ambient moisture. However, in a high-temperature and dry spinning channel, the mechanism is completely ineffective, so that tows are scattered and wound due to electrostatic repulsion, the processing is difficult, and dust is more easily adsorbed to influence the cleanliness of a finished product. In the prior art, oily components with stable molecular structures and high boiling points are required to realize high-temperature stability, and polar or ionic components are often required to be introduced to realize static resistance, wherein the polar or ionic components are difficult to stably exist at high temperature. For example, CN104032570a discloses a spinning oil agent, which adopts cationic quaternary ammonium salt (dodecyl trimethyl ammonium chloride) as an antistatic agent, the component depends on a moisture absorption mechanism, and not only the antistatic property is invalid in a dry high-temperature environment of PPS spinning, but also the component can be thermally decomposed to cause the deterioration of the oil agent, while CN119824580a introduces a nano antistatic component, the technical problem of long-term dispersion stability of nano particles in the high-temperature oil agent is not solved, the nano particles are easy to agglomerate and settle, the antistatic property is fast attenuated under the high-temperature processing condition, and meanwhile, the formula still contains an antistatic component such as ethoxyamine hydrochloride which depends on environmental humidity, and the antistatic property of the PPS is expected to be significantly attenuated in a high-temperature dry spinning channel. Therefore, the art has long lacked a special oil capable of satisfying both high-temperature durability stability and long-acting antistatic property under the severe condition of PPS spinning. Disclosure of Invention The invention aims to provide a novel oiling agent formula which can adapt to the high-temperature conditions of PPS fiber production, and particularly provides a high-temperature-resistant antistatic oiling agent special for polyphenylene sulfide spinning, and a preparation method and application thereof. According to the first aspect, the high-temperature-resistant antistatic oiling agent special for polyphenylene sulfide spinning comprises a cluster dispersion, wherein the cluster dispersion is formed in situ by shearing and dispersing the cluster dispersion in high-temperature-resistant base oil containing tetrapolyricinoleate and nonylphenol polyoxyethylene ether for 30 minutes at a speed of 200-400rpm under the conditions of 70-80 ℃ and absolute pressure of less than or equal to 0.05 MPa through nano metal conductive particles and high-molecular polymer microspheres, and the average hydrodynamic radius of the cluster dispersion is 80-120 nm, and the grain