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CN-121976330-A - Modified vegetable oil-based viscose fiber oiling agent and preparation method thereof

CN121976330ACN 121976330 ACN121976330 ACN 121976330ACN-121976330-A

Abstract

The invention relates to a modified vegetable oil-based viscose fiber oiling agent and a preparation method thereof, belonging to the technical field of fiber surface function auxiliary agents. The fiber oil is prepared by compounding, by mass, 5-15% of polyol modified vegetable oil, 25-35% of lubricant, 35-45% of emulsifier, 10-20% of antistatic agent, 0-3% of functional auxiliary agent and the balance of water. The polyalcohol modified vegetable oil is obtained by epoxidizing vegetable oil and opening a ring under the action of polyalcohol, wherein the vegetable oil is one or more of cotton seed oil, castor oil, soybean oil, corn oil, peanut oil, olive oil and sesame oil. Compared with the prior art, the modified vegetable oil-based viscose fiber oiling agent prepared by the invention has the advantages of excellent high temperature resistance and good stability, and can meet the production requirements of viscose fibers.

Inventors

  • CHEN FENGKUN
  • ZHOU YEHUI
  • LI ZHI
  • ZHU MEIFANG

Assignees

  • 东华大学

Dates

Publication Date
20260505
Application Date
20260403

Claims (10)

  1. 1. The modified vegetable oil-based viscose fiber oiling agent is characterized by being prepared by compounding the following raw material components in percentage by mass: 5-15 wt% of polyol modified vegetable oil, 25-35 wt% of lubricant, 35-45 wt% of emulsifier, 10-20 wt% of antistatic agent, 0-3 wt% of functional auxiliary agent and the balance of water; the polyol modified vegetable oil is obtained by epoxidizing vegetable oil and then opening a ring under the action of polyol; The vegetable oil is one or more of cotton seed oil, castor oil, soybean oil, corn oil, peanut oil, olive oil and sesame oil; The structural formula of the polyol is HO- (CH 2 CH 2 O) n -H), wherein n is the number of repeated units, and n is an integer from 1 to 25.
  2. 2. The modified vegetable oil-based viscose fiber oil agent according to claim 1, which is characterized by being prepared by compounding the following raw material components in percentage by mass: 8-12 wt% of polyol modified vegetable oil, 25-35 wt% of lubricant, 35-45 wt% of emulsifier, 10-20 wt% of antistatic agent, 0-3 wt% of functional auxiliary agent and the balance of water.
  3. 3. The modified vegetable oil-based viscose fiber oil agent according to claim 1, wherein the polyol modified vegetable oil is prepared by the following method: (1) Mixing vegetable oil, organic acid, a catalyst and hydrogen peroxide, and then performing an epoxidation reaction to enable unsaturated carbon-carbon double bonds in vegetable oil molecules to generate epoxy groups through the epoxidation reaction, thereby obtaining epoxidized vegetable oil; (2) Mixing the epoxidized vegetable oil with the polyol, and then carrying out ring opening reaction under the action of a catalyst to obtain the polyol modified vegetable oil.
  4. 4. A modified vegetable oil-based viscose fiber finish according to claim 3, wherein in the step (1), the amount of the organic acid is 15-25wt% of the mass of the vegetable oil, and the organic acid is any one or more of formic acid and acetic acid; The dosage of the catalyst is 0.5-2wt% of the mass of the vegetable oil, and the catalyst is one or more of phosphoric acid and sulfuric acid; The consumption of the hydrogen peroxide is 80-120wt% of the mass of the vegetable oil, and the hydrogen peroxide content in the hydrogen peroxide is 25-35wt%; the temperature of the epoxidation reaction is 50-70 ℃, and the time of the epoxidation reaction is 4-8 h.
  5. 5. A modified vegetable oil-based viscose fiber finish according to claim 3, wherein in step (2), the amount of the polyhydric alcohol is 20% to 300% of the mass of the epoxidized vegetable oil; The catalyst is fluoboric acid, and the dosage of the catalyst is 0.5-2wt% of the total weight of reactants; the temperature of the ring-opening reaction is 50-70 ℃, and the epoxidation reaction time is 4-8 h.
  6. 6. The modified vegetable oil-based viscose fiber oil agent according to claim 1, wherein the lubricant is one or more of C8-C24 fatty acid esters, C8-C24 fatty alkyd esters or C10-C24 fatty alcohol polyoxyethylene ether fatty acid esters.
  7. 7. The modified vegetable oil-based viscose fiber oil according to claim 1, wherein the emulsifier is one or more of a polyol fatty acid ester, a fatty alcohol polyoxyethylene ether, a fatty acid polyoxyethylene ester, and a polyoxyethylene alcohol fatty acid ester.
  8. 8. The modified vegetable oil-based viscose fiber oil according to claim 1, wherein the antistatic agent is one or more of fatty alcohol polyoxyethylene ether salt, alkyl phosphate ester salt, fatty alcohol ether phosphate ester salt.
  9. 9. The modified vegetable oil-based viscose fiber oil agent according to claim 1, wherein the functional auxiliary agent is any one or more of a bundling agent, an antiwear agent, a softening agent, an anti-splash agent, a penetrating agent, an antibacterial agent and a regulator.
  10. 10. A method for preparing the modified vegetable oil-based viscose fiber finish according to any one of claims 1 to 9, comprising the steps of: Mixing the polyol modified vegetable oil and the lubricant and uniformly stirring; sequentially adding an emulsifying agent, a functional auxiliary agent, water and an antistatic agent, and stirring at 55-65 ℃ until the materials are uniform; And cooling to obtain the modified vegetable oil-based viscose fiber oiling agent.

Description

Modified vegetable oil-based viscose fiber oiling agent and preparation method thereof Technical Field The invention relates to the technical field of fiber surface function assistants, in particular to a modified vegetable oil-based viscose fiber oiling agent and a preparation method thereof. Background The viscose fiber has the core advantages of excellent hygroscopicity, good air permeability, comfortable wearing and complete biodegradation, meets the current green low-carbon development concept and the consumption upgrading requirement, is widely applied to clothing, home textiles, industrial textiles and special fields (such as medical and environmental protection), and becomes an important supporting material for transformation and upgrading of textile industry in China, and the industrial scale and market demand of the viscose fiber are steadily increased. The fiber oiling agent is an indispensable functional auxiliary agent in the production and processing processes of the fiber, is used for adjusting the friction characteristic of the fiber, preventing or eliminating static accumulation, simultaneously endowing the fiber with the characteristics of softness, smoothness and the like, improving the cohesion of the fiber, protecting the strength of the fiber, and reducing the broken filaments and the broken ends so as to ensure the smooth proceeding of the subsequent process. Although the amount of fiber finish used in fiber production is small, it plays a significant role in the quality of the fiber. The fiber oiling agent is usually compounded by a plurality of surfactants such as a smoothing agent, an emulsifying agent, an antistatic agent, other functional auxiliary agents and the like. Among them, mineral oils (e.g., white oil, etc.) can provide excellent lubrication and act as carriers for functional components, and are often used as base oils, lubricant components in fiber finishes. The invention discloses a viscose spinning oil and a preparation method thereof, wherein the oil contains a lubricant, an antistatic agent and an emulsifier, the lubricant is one or more of white oil, liquid paraffin, vaseline, spindle oil, stearate and oleate, the emulsifier is one or more of fatty alcohol polyoxyethylene ether, fatty acid polyoxyethylene ester, polyol fatty acid ester, nonylphenol polyoxyethylene ether and polyethylene glycol, and the antistatic agent is one or more of alkyl phosphate, alkyl sulfate, alkyl phosphate and higher alcohol sulfate. However, the viscose fiber spinning oil still uses mineral oil such as white oil, liquid paraffin, vaseline, spindle oil and the like or refined products thereof, the use of the mineral oil is not good for the environment, and a large amount of the mineral oil is applied to the fiber oil, so that the high temperature resistance of the fiber oil is poor. In recent years, along with the development of chemical fiber industry towards green, functional, differential and other directions, and the continuous enhancement of ecological environmental protection consciousness, the development of chemical fiber oiling agents has also put forward higher requirements. Therefore, a novel viscose fiber oiling agent which is green and environment-friendly and has excellent high temperature resistance is still to be developed. Disclosure of Invention The invention aims to overcome the defects of the prior art and provide a modified vegetable oil-based viscose fiber oiling agent and a preparation method thereof. The aim of the invention can be achieved by the following technical scheme: The invention provides a modified vegetable oil-based viscose fiber oiling agent which is prepared by compounding, by mass, 5-15wt% of polyol modified vegetable oil, 25-35wt% of a lubricant, 35-45wt% of an emulsifier, 10-20wt% of an antistatic agent, 0-3wt% of a functional auxiliary agent and the balance of water. Further, the polyol modified vegetable oil is obtained by epoxidizing vegetable oil and then opening a ring under the action of polyol. Still further, the vegetable oil is one or more of cottonseed oil, castor oil, soybean oil, corn oil, peanut oil, olive oil, sesame oil, preferably cottonseed oil. Further, the structural formula of the polyol is HO- (CH 2CH2O)n -H), wherein n is the number of repeated units, and n is an integer from 1 to 25. The fiber oiling agent is prepared by compounding, by mass, 8-12% of polyol modified vegetable oil, 28-32% of lubricant, 38-42% of emulsifier, 15-20% of antistatic agent, 0-3% of functional auxiliary agent and the balance of water. Further, the polyol-modified vegetable oil is specifically prepared by the following method: (1) Mixing vegetable oil, organic acid, a catalyst and hydrogen peroxide, and then performing an epoxidation reaction to enable unsaturated carbon-carbon double bonds in vegetable oil molecules to generate epoxy groups through the epoxidation reaction, thereby obtaining epoxidized vegetable oil; (2) Mixing the epoxidized veget