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CN-120465141-B - Composite FDY (fully drawn yarn) oil agent and preparation method thereof

CN120465141BCN 120465141 BCN120465141 BCN 120465141BCN-120465141-B

Abstract

The application provides a composite FDY oiling agent and a preparation method thereof, wherein the preparation method comprises the steps of mixing an HLB regulator and water, heating and stirring to obtain a first mixture, adding an emulsifying agent, a bundling agent, an antistatic agent and a smoothing agent into the first mixture, mixing, preserving heat and stirring to obtain a second mixture, cooling the second mixture to room temperature, regulating the pH value to 6.5-7.5, and filtering to obtain the composite FDY oiling agent, wherein the HLB regulator is porous silicon dioxide loaded with glyceride ethoxylate and coated with ethyl cellulose on the surface. The composite FDY oiling agent can keep the stability of the HLB value under the high-temperature condition, and has better environment friendliness.

Inventors

  • SHEN YAFEN
  • ZHU JIANCHENG
  • CHEN XIAOQIN
  • ZHU TONGYU
  • ZHANG JIANBIN
  • ZHU JIABIN
  • ZHU ZELIANG
  • YANG GUOFENG
  • YU WENFANG

Assignees

  • 浙江恒弘新材料有限公司

Dates

Publication Date
20260508
Application Date
20250714

Claims (7)

  1. 1. The preparation method of the composite FDY oiling agent is characterized by comprising the following steps: s100, mixing and stirring an HLB regulator and water, and heating to 55-65 ℃ to obtain a first mixture; s200, adding an emulsifying agent, a bundling agent, an antistatic agent and a smoothing agent into the first mixture, mixing, preserving heat and stirring to obtain a second mixture; s300, cooling the second mixture to room temperature, adjusting the pH value to 6.5-7.5, and filtering to obtain the composite FDY oiling agent; Wherein the HLB regulator is porous silicon dioxide loaded with glyceride ethoxylate and coated with ethyl cellulose on the surface; the preparation method of the HLB regulator comprises the following steps: s10, performing silane modification treatment on the porous silica by adopting 3-aminopropyl triethoxysilane to obtain modified porous silica; S20, mixing glyceride ethoxylate and modified porous silica in ethanol according to the mass ratio of glyceride ethoxylate to ethanol= (20-30) to (16-20) to 100, heating to 45-50 ℃ and carrying out heat preservation treatment for 3-4 h under the condition of ultrasonic vibration to obtain a third mixture; S30, after the third mixture is dried, mixing the third mixture with an ethyl cellulose solution, and carrying out atomization drying to obtain the HLB regulator; The HLB regulator comprises a first HLB regulator and a second HLB regulator, wherein the first HLB regulator is porous silica loaded with glyceride ethoxylate A and coated with ethyl cellulose a on the surface, the second HLB regulator is porous silica loaded with glyceride ethoxylate B and coated with ethyl cellulose B on the surface, the glyceride ethoxylate is prepared from triglyceride and ethylene oxide through ethoxylation, the mole ratio of the triglyceride and the ethylene oxide adopted in the preparation process of the glyceride ethoxylate A and the glyceride ethoxylate B is different, and the ethoxylation content and/or substitution degree of the ethyl cellulose a and the ethyl cellulose B are different.
  2. 2. The preparation method according to claim 1, wherein the HLB regulator comprises water, emulsifier, bundling agent, antistatic agent, and smoothing agent = (6-8): (12-16): (28-30): (2-4): (8-10): (36-40) in mass ratio.
  3. 3. The method according to claim 1, wherein, The emulsifier comprises at least one of emetic temperature and span or a combination thereof; the bundling agent comprises at least one of oleic acid diethanolamide and oleic acid triethanolamine or a combination thereof; The antistatic agent comprises at least one of isomeric tridecanol phosphate potassium salt and dodecatetradecyl phosphate potassium salt or a combination thereof; The smoothing agent comprises at least one of pentaerythritol, isopropyl fatty acid ester, mineral oil, animal oil and vegetable oil or a combination thereof.
  4. 4. A method of preparation according to claim 3, wherein the emulsifier comprises tween 40 and span 80 in a mass ratio of (4-5): 1, and the emulsifier has an HLB value of from 13 to 14.
  5. 5. The method according to claim 3, wherein the smoothing agent comprises pentaerythritol, isopropyl fatty acid ester and vegetable oil in a mass ratio of 2:1:1, wherein the vegetable oil is at least one of soybean oil, coconut oil, palm oil, rapeseed oil or a combination thereof.
  6. 6. The method according to claim 1, wherein, The mass ratio of the first HLB regulator to the second HLB regulator is 1 (2-3); The mol ratio of the glycerol trioleate to the ethylene oxide adopted for preparing the glyceride ethoxylate A is 1 (60-65); the mol ratio of the glycerol trioleate to the ethylene oxide adopted for preparing the glyceride ethoxylate B is 1 (75-80); The ethoxyl content of the ethylcellulose a is 44 percent to 45 percent, and the substitution degree is 2.18 to 2.35; The ethylcellulose b has an ethoxy content of 46% to 48% and a degree of substitution of 2.10 to 2.17.
  7. 7. A composite FDY oil, characterized in that it is obtained by the preparation method according to any one of claims 1 to 6.

Description

Composite FDY (fully drawn yarn) oil agent and preparation method thereof Technical Field The application relates to the technical field of chemical materials, in particular to a composite FDY (fully drawn yarn) oiling agent and a preparation method thereof. Background The polyester is polyethylene terephthalate (PET) prepared by taking refined terephthalic acid (PTA) or dimethyl terephthalate (DMT) and ethylene glycol (MEG) as raw materials, carrying out esterification or transesterification and then carrying out polycondensation, and then spinning and post-treating the PET to obtain the fiber. The terylene products mainly comprise POY (pre-oriented yarn), FDY (fully drawn yarn) and DTY (draw textured yarn). The FDY polyester fiber is characterized in that high-speed stretching (4000 m/min) and heat setting are finished at one time in the spinning process, and the molecular chains of the FDY polyester fiber are highly oriented and crystallized to directly produce finished yarn. Therefore, the FDY polyester fiber has smooth surface, high glossiness and stable size, and is especially suitable for manufacturing liners or imitated silk fabrics. The FDY spinning oil in the prior art generally takes a nonionic surfactant (such as glyceride ethoxylate, fatty alcohol polyoxyethylene ether AEO and the like) as a core component, and the hydrophilicity of the FDY spinning oil depends on hydrogen bonds formed by polyoxyethylene chains (EO chains) and water. With the progress of the spinning process, the temperature of the FDY spinning oil gradually rises, the thermal movement of water molecules is aggravated, the water in the oil is evaporated, and hydrogen bonds between EO chains and water molecules are destroyed, so that the hydrophilicity of the FDY spinning oil is reduced. In addition, when the spinning temperature exceeds the cloud point, the nonionic surfactant changes from a clear solution to a milky turbid liquid, and the HLB value drops sharply. The decrease in HLB value of FDY spin finish under high temperature conditions results in the decrease of the emulsifying ability of FDY spin finish and the tendency of oil-water phase separation, which causes the fluctuation of friction coefficient of FDY fibers and the risk of yarn and broken ends. Research results in the prior art show that when the temperature of the FDY spinning oil is increased from 40 ℃ to 100 ℃, the HLB value of the FDY spinning oil is reduced by 15% -20%, and meanwhile, the dynamic friction coefficient of the FDY fiber is increased by 0.05-0.08. How to avoid the HLB value fluctuation of FDY spinning oil under the high temperature condition is one of the technical problems to be solved by the technicians in the field. Disclosure of Invention One of the problems to be solved by the present application is how to provide an FDY spin finish which is capable of maintaining a relatively stable HLB value under high temperature conditions. In order to solve at least one of the problems, the application provides a preparation method of a composite FDY oiling agent, which comprises the following steps: s100, mixing and stirring an HLB regulator and water, and heating to 55-65 ℃ to obtain a first mixture; S200, adding an emulsifying agent, a bundling agent, an antistatic agent and a smoothing agent into the first mixture, mixing, preserving heat and stirring to obtain a second mixture; s300, cooling the second mixture to room temperature, adjusting the pH value to 6.5-7.5, and filtering to obtain a composite FDY oiling agent; Wherein the HLB regulator is porous silica loaded with glyceride ethoxylate and coated with ethyl cellulose on the surface. In the technical scheme, the HLB regulator comprises the following components in percentage by mass: water, emulsifier, bundling agent, antistatic agent, smoothing agent= (6-8) (12-16) (28-30) (2-4) (8-10) (36-40). In the technical scheme, the emulsifier comprises at least one of spitting and span or a combination thereof, the bundling agent comprises at least one of oleic acid diethanolamide and oleic acid triethanolamine or a combination thereof, the antistatic agent comprises at least one of isomeric tridecanol phosphate potassium salt and dodecanol phosphate potassium salt or a combination thereof, and the smoothing agent comprises at least one of pentaerythritol, fatty acid isopropyl ester, mineral oil, animal oil and vegetable oil or a combination thereof. In the technical scheme, the emulsifier comprises tween 40 and span 80 with the mass ratio of (4-5) being 1, and the HLB value of the emulsifier is 13 to 14. In the technical scheme, the smoothing agent comprises pentaerythritol, fatty acid isopropyl ester and vegetable oil in a mass ratio of 2:1:1, wherein the vegetable oil is at least one of soybean oil, coconut oil, palm oil and rapeseed oil or a combination thereof. In the technical scheme, the glyceride ethoxylate is prepared from triglyceride and ethylene oxide serving as raw materials through an