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CN-122011270-A - High-temperature-resistant emulsifier for FDY (fully drawn yarn) oiling agent and preparation method thereof

CN122011270ACN 122011270 ACN122011270 ACN 122011270ACN-122011270-A

Abstract

The invention belongs to the field of emulsifying agents, and particularly relates to a high-temperature-resistant emulsifying agent for FDY oil and a preparation method thereof. The invention prepares nonionic modified cardanol by reacting polyethylene glycol monomethyl ether with quaternary ammonium salt cardanol under the action of sodium hydride, prepares high temperature resistant emulsifier by reacting nonionic modified cardanol with modified erucic acid through double bonds under the action of dibenzoyl peroxide as a catalyst, the high-temperature-resistant emulsifier prepared by the reaction of the nonionic modified cardanol and the modified erucic acid has good emulsifying, wetting and dispersing properties, high-temperature resistance and antibacterial properties, can also improve the antistatic properties of the oiling agent, avoids smoke generation and coking during spinning, and is suitable for FDY oiling agents.

Inventors

  • SHEN YAFEN
  • ZHU JIANCHENG
  • CAI MINJIE
  • YANG ZHIMING
  • YU WENFANG
  • ZHANG BINBIN
  • ZHAO WEI

Assignees

  • 浙江恒翔新材料有限公司

Dates

Publication Date
20260512
Application Date
20260330

Claims (10)

  1. 1. The preparation method of the high-temperature-resistant emulsifier for the FDY oiling agent is characterized by comprising the following steps of: s1, adding polyethylene glycol monomethyl ether and sodium hydride into anhydrous tetrahydrofuran under the protection of nitrogen, uniformly stirring, placing at 40-50 ℃, stirring and reacting for 2-3 hours, adding quaternary ammonium salt cardanol, and continuing stirring and reacting for 4-5 hours to obtain nonionic modified cardanol; S2, adding nonionic modified cardanol and modified erucic acid into toluene under the protection of nitrogen, uniformly stirring, placing at 90-100 ℃, adding dibenzoyl peroxide, and stirring for reacting for 2-3h to obtain the high temperature resistant emulsifier.
  2. 2. The method for preparing the high temperature resistant emulsifier for the FDY oiling agent according to claim 1, wherein the molar ratio of the polyethylene glycol monomethyl ether to the sodium hydride to the quaternary ammonium salt cardanol in the step S1 is 1:5-6:5-6.
  3. 3. The method for preparing the high temperature resistant emulsifier for the FDY oiling agent according to claim 1, wherein the preparation method of the quaternary ammonium salt cardanol in the step S1 is as follows: a1, adding cardanol and triethylamine into chloroform, uniformly stirring, slowly dropwise adding epichlorohydrin, and placing the mixture at 40-45 ℃ after dropwise adding, and stirring and reacting for 4-5 hours to obtain chloridized cardanol; a2, adding chloridized cardanol and dimethylaminoethyl methacrylate into acetonitrile, uniformly stirring, placing at 75-80 ℃, stirring and reacting for 9-10 hours, placing at 30-35 ℃, adding triethylamine, uniformly stirring, slowly dropwise adding thionyl chloride, and continuously stirring and reacting for 3-4 hours after the dropwise adding, so as to obtain the quaternary ammonium salt cardanol.
  4. 4. The method for preparing a high temperature resistant emulsifier for FDY oiling agent according to claim 3, wherein the molar ratio of cardanol, epichlorohydrin and triethylamine in the step A1 is 1:1.1-1.2:1.3-1.5.
  5. 5. The method for preparing a high temperature resistant emulsifier for FDY oil according to claim 3, wherein the molar ratio of chloridized cardanol, dimethylaminoethyl methacrylate, thionyl chloride and triethylamine in the step A2 is 1:1.1-1.2:1.2-1.3:1.2-1.3.
  6. 6. The method for preparing the high temperature resistant emulsifier for the FDY oiling agent according to claim 1, wherein the mass ratio of the nonionic modified cardanol to the modified erucic acid to the dibenzoyl peroxide in the step S2 is 1:0.6-0.8:0.08-0.1.
  7. 7. The method for preparing the high temperature resistant emulsifier for FDY oiling agent according to claim 1, wherein the preparation method of the modified erucic acid in the step S2 is as follows: B1, adding erucic acid and sodium aminobenzene sulfonate into N, N-dimethylformamide, uniformly stirring, adding 1-ethyl- (3-dimethylaminopropyl) carbodiimide hydrochloride, placing at 70-80 ℃, and stirring for reacting for 5-6 hours to obtain sodium benzene sulfonate erucic acid; and B2, adding sodium benzenesulfonate erucic acid, triclosan and triethylamine into acetonitrile, uniformly stirring, and reacting for 5-6 hours at 50-60 ℃ under stirring to obtain the modified erucic acid.
  8. 8. The method for preparing a high temperature resistant emulsifier for FDY oil according to claim 7, wherein the molar ratio of erucic acid, sodium aminobenzenesulfonate and 1-ethyl- (3-dimethylaminopropyl) carbodiimide hydrochloride in the step B1 is 1:1.1-1.2:0.5-0.6.
  9. 9. The method for preparing a high temperature resistant emulsifier for FDY oil according to claim 7, wherein the molar ratio of sodium benzene sulfonate erucic acid, triclosan and triethylamine in the step B2 is 1:1.1-1.2:1.2-1.3.
  10. 10. A high temperature resistant emulsifier for an FDY oil, characterized by being produced by the method for producing a high temperature resistant emulsifier for an FDY oil according to any one of claims 1 to 9.

Description

High-temperature-resistant emulsifier for FDY (fully drawn yarn) oiling agent and preparation method thereof Technical Field The invention belongs to the field of emulsifying agents, and particularly relates to a high-temperature-resistant emulsifying agent for FDY oil and a preparation method thereof. Background The fully drawn polyester yarn (FDY) oiling agent is a textile auxiliary agent playing a key role in chemical fiber production, is mainly used in a one-step process of high-speed spinning and drawing of polyester, has lubrication and antistatic effects, and can form an oil film on the surface of the fiber in the high-speed spinning process, reduce the friction coefficient, prevent static accumulation, effectively reduce broken filaments and broken ends, has good bundling property and high thermal stability, is favorable for bundling the fiber, ensures good winding forming, meets the requirements of the high-speed drawing process, also tolerates a high-temperature drawing environment, has low volatility, avoids the influence of excessively fast evaporation of the oiling agent on the performance, and improves the production efficiency and the fiber quality; the FDY oiling agent is generally compounded by various organic compounds and mainly comprises a smoothing agent, a surfactant (emulsifying agent), an antistatic agent and other additives, wherein the surfactant (emulsifying agent) is used as a core functional component of the FDY oiling agent, and is mainly used for emulsifying and dispersing oily components in water to form a stable and uniform emulsion system, so that the consistency of the continuity of the oiling process and the performance of fibers is ensured, the common surfactants mainly comprise fatty alcohol polyoxyethylene ether, coconut oil diethanolamine hydrogenated castor oil polyoxyethylene ether, alkanol polyoxyethylene ether potassium phosphate and the like, and the emulsifying agent for the FDY oiling agent is required to have high temperature resistance. The Chinese patent with the application number of CN202210487237.1 discloses a sodium lignin sulfonate polyether amphoteric surfactant for polyester industrial yarns, polyester industrial yarn spinning oil and a preparation method and application thereof, wherein the surfactant comprises 1-20 parts of sodium lignin sulfonate polyether amphoteric surfactant, 3-6 parts of propylene glycol block polyether L61, 2-10 parts of oleyl alcohol polyoxyethylene ether ester OV, 1-10 parts of hydrogenated castor oil polyoxyethylene ether HEL-20 and 1-6 parts of polyethylene glycol dioleate PEG400DO, and the prepared sodium lignin sulfonate polyether amphoteric surfactant is added into the spinning oil as an emulsifier, mainly plays the roles of emulsification, antistatic and corrosion resistance in the spinning process, but the high temperature resistance of the surfactant is insufficient, and can not meet the requirement of the high temperature resistance of the emulsifier in the FDY oil, so that the high temperature resistance emulsifier capable of being used for the FDY oil needs to be developed. Disclosure of Invention The invention aims at overcoming the defects of the prior art, and provides a high temperature resistant emulsifier for FDY oiling agent and a preparation method thereof, the invention relates to the high temperature resistant emulsifier prepared by the reaction of nonionic modified cardanol and modified erucic acid, the emulsion has good emulsifying and wetting dispersion performance, high temperature resistance and antibacterial performance, can also improve the antistatic performance of the oiling agent, avoids the condition of smoke generation and coking during spinning, and is suitable for FDY oiling agents. The technical scheme adopted by the invention for achieving the purpose is as follows: a preparation method of a high-temperature-resistant emulsifier for FDY oiling agent comprises the following steps: s1, adding polyethylene glycol monomethyl ether and sodium hydride into anhydrous tetrahydrofuran under the protection of nitrogen, uniformly stirring, placing at 40-50 ℃, stirring and reacting for 2-3 hours, adding quaternary ammonium salt cardanol, and continuing stirring and reacting for 4-5 hours to obtain nonionic modified cardanol; S2, adding nonionic modified cardanol and modified erucic acid into toluene under the protection of nitrogen, uniformly stirring, placing at 90-100 ℃, adding dibenzoyl peroxide, and stirring for reacting for 2-3h to obtain the high temperature resistant emulsifier. Further, in the step S1, the molar ratio of the polyethylene glycol monomethyl ether to the sodium hydride to the quaternary ammonium salt cardanol is 1:5-6:5-6. Further, in the step S2, the mass ratio of the nonionic modified cardanol to the modified erucic acid to the dibenzoyl peroxide is 1:0.6-0.8:0.08-0.1. Further, the preparation method of the quaternary ammonium salt cardanol in the step S1 comprises the followi