Wool lubricating oil based on bio-based surfactant and preparation method thereof
By using bio-based surfactant-based and crude oil, combined with modified glycerol fatty acid esters or modified sugar derivatives, the problem of decomposition of crude oil at high temperatures is solved, and the effect of stable emulsification and efficient lubrication of wool fibers is achieved, while reducing production costs and environmental pollution.
Patent Information
- Application Number
- CN202510152522.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2025-05-06
AI Technical Summary
Existing and raw oils are prone to decomposition or lose their emulsification properties in high temperature environments, affecting the treatment effect and quality of wool fibers. At the same time, traditional emulsification technology has problems of high energy consumption and environmental pollution.
Bio-based surfactant and crude oils, including isooctyl stearate, nonionic surfactant, bio-based surfactant, emulsifier and thickener, are used to form a stable emulsion by modifying glycerol fatty acid esters or modified sugar derivatives as bio-based surfactant, and combined with castor oil polyoxyethylene ether and lauric polyoxyethylene ether as emulsifiers.
It realizes stable emulsification with crude oil at high temperature, avoids oil-water separation and layering, improves the lubricity and softness of wool fibers, and reduces production costs and environmental pollution.
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Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of textile printing and dyeing auxiliaries, and particularly relates to a crude oil based on a bio-based surfactant and a preparation method thereof. Background Art
[0002] During the processing of wool fibers, it is generally necessary to apply oils for pretreatment. Wool oil is an important oil, which can give wool fibers smoothness, softness, adhesion, antistatic and other characteristics, and prevent combing difficulties, fiber damage, flying hair, falling hair, high breakage rate and other phenomena. Wool oil includes base oil and additives. The main component of base oil plays a lubricating role, so it is also called smoothing agent; additives only account for a small amount, which plays the role of adhesion, antistatic, wetting and penetration, moisture absorption, sterilization, defoaming, rust prevention and other functions, and are mostly surfactants.
[0003] In the existing wool fiber processing technology, the wool oil used usually performs well under normal temperature conditions, but under high temperature conditions, the wool oil is prone to decomposition or lose its emulsification properties, thus affecting the processing effect and quality of the wool fiber. In addition, traditional wool oil emulsification technology usually relies on high-energy consumption equipment or complex emulsifiers, which not only increases production costs, but also may cause environmental pollution and safety hazards.
[0004] In addition, since the application of wool oil is only an auxiliary means of the spinning process, and the presence of these oils is harmful to the subsequent dyeing and finishing, it will affect the water absorption of the fiber and have a certain dye repellent effect. Therefore, the wool oil must be easy to emulsify and wash off, and the viscosity of the oil should not be too large, otherwise it will contaminate the guide rollers during the spinning process and affect the yarn quality.
[0005] Therefore, there is an urgent need for a wool oil that can be stably emulsified at high temperatures, is easy to emulsify, and can improve the wool fiber processing effect. Summary of the invention
[0006] The purpose of the present invention is to provide a wool oil based on a bio-based surfactant, which is easy to emulsify and resistant to high temperatures and has excellent lubricity and softness when applied to wool fibers.
[0007] The technical solution adopted by the present invention to solve the above problems is: a crude oil based on a bio-based surfactant, comprising the following components by weight: 70-85 parts of 2-ethylhexyl stearate Nonionic surfactant 9-11 parts Bio-based surfactant 9-11 parts Emulsifier 8-12 parts Thickener 3-5 parts Among them, the bio-based surfactant is a modified glycerol fatty acid ester or a modified sugar derivative.
[0008] Preferably, the nonionic surfactant is fatty alcohol polyoxyethylene ether AEO-3.
[0009] Preferably, the emulsifier is castor oil polyoxyethylene ether EL-40 and lauric acid polyoxyethylene ether LAE-9.
[0010] Preferably, the emulsifier is castor oil polyoxyethylene ether EL-40 and lauric acid polyoxyethylene ether LAE-9 in a mass ratio of 2-3:7-8.
[0011] Preferably, the thickener is trehalose or hydroxypropyl methylcellulose.
[0012] Preferably, the modified glycerol fatty acid ester is obtained by esterifying glycerol and fatty acid and then adding ethylene oxide for modification.
[0013] More preferably, the modified glycerol fatty acid ester is prepared by the following preparation method: glycerol and fatty acid are mixed, a solvent is added, the mixture is stirred evenly, a catalyst boron trifluoride is added, the mixture is reacted at a temperature of 180-220° C. for 2-4 hours, ethylene oxide is added after the reaction is completed, the mixture is reacted at 100-160° C. for 1-3 hours, and the modified glycerol fatty acid ester is obtained after post-treatment.
[0014] Preferably, the modified sugar derivative is obtained by esterifying glucose and fatty acid sugar and then adding ethylene oxide for modification.
[0015] More preferably, the modified sugar derivative is prepared by the following preparation method: glucose and fatty acid are mixed, a solvent is added, the mixture is stirred evenly, a catalyst boron trifluoride is added, the mixture is reacted at 160-200°C for 2-3h, ethylene oxide is added after the reaction is completed, the mixture is reacted at 100-120°C for 1-2h, and the modified sugar derivative is obtained after post-treatment.
[0016] Another object of the present invention is to provide a method for preparing the above-mentioned bio-based surfactant and crude oil, comprising the following steps: (1) Mix isooctyl stearate, nonionic surfactant, and bio-based surfactant and stir evenly; (2) Add an emulsifier to the mixed solution of step (1), stir at high speed for 1.5-2 hours at a temperature of 40-60° C., and finally add a thickener to adjust the viscosity to obtain crude oil.
[0017] Compared with the prior art, the advantages of the present invention are: The wool oil of the present invention is not only easy to emulsify, but also has excellent stability at high temperature, and does not have oil-water separation and stratification phenomenon, and the treated wool fiber has good lubricity and softness. Among them, the addition of bio-based surfactants and emulsifiers (castor oil polyoxyethylene ether EL-40 and lauric acid polyoxyethylene ether LAE-9) of modified glycerol fatty acid esters or modified sugar derivatives can not only enhance the dispersibility of the wool oil in the water phase, making it easy to emulsify, but also maintain stability at high temperature without separation phenomenon. DETAILED DESCRIPTION
[0018] The present invention is further described in detail below with reference to the embodiments. Example 1
[0019] A crude oil based on a bio-based surfactant, comprising the following components by weight: 80 parts of 2-ethylhexyl stearate 9 parts of nonionic surfactant Bio-based surfactant 9 parts Emulsifier 10 parts Thickener 4 parts Among them, the bio-based surfactant is modified glycerol fatty acid ester.
[0020] The nonionic surfactant is fatty alcohol polyoxyethylene ether AEO-3.
[0021] The emulsifier is castor oil polyoxyethylene ether EL-40 and lauric acid polyoxyethylene ether LAE-9 in a mass ratio of 3:7.
[0022] The thickener is trehalose.
[0023] The modified glycerol fatty acid ester is prepared by the following preparation method: glycerol and fatty acid are mixed in a molar ratio of 1:4, solvent toluene (1 / 3 of the raw material volume) is added, and the mixture is stirred evenly. A catalyst boron trifluoride (the amount added is 1% of the mass of the fatty acid) is added, and the mixture is reacted at 180°C for 4 hours. After the reaction is completed, ethylene oxide (the amount added is 10% of the mass of the fatty acid) is added, and the mixture is reacted at 120°C for 2 hours. The modified glycerol fatty acid ester is obtained after washing with water, extraction with ethanol, and distillation under reduced pressure.
[0024] A method for preparing the above-mentioned bio-based surfactant and crude oil comprises the following steps: (1) Mix isooctyl stearate, nonionic surfactant, and bio-based surfactant and stir evenly; (2) Add an emulsifier to the mixed solution of step (1), stir at high speed at 50°C for 2 hours, and finally add a thickener to adjust the viscosity to obtain crude oil. Example 2
[0025] A crude oil based on a bio-based surfactant, comprising the following components by weight: 75 parts of 2-ethylhexyl stearate 10 parts of nonionic surfactant Bio-based surfactant 10 parts Emulsifier 9 parts Thickener 4 parts Among them, bio-based surfactants are modified sugar derivatives.
[0026] The nonionic surfactant is fatty alcohol polyoxyethylene ether AEO-3.
[0027] The emulsifier is castor oil polyoxyethylene ether EL-40 and lauric acid polyoxyethylene ether LAE-9 in a mass ratio of 3:7.
[0028] The thickener is trehalose.
[0029] The modified sugar derivative is prepared by the following preparation method: glucose and fatty acid are mixed in a molar ratio of 1:2, solvent toluene (1 / 3 of the raw material volume) is added, and the mixture is stirred evenly. A catalyst boron trifluoride (the amount added is 1% of the mass of the fatty acid) is added, and the mixture is reacted at 160°C for 3 hours. After the reaction is completed, ethylene oxide (the amount added is 10% of the mass of the fatty acid) is added, and the mixture is reacted at 120°C for 2 hours. The modified sugar derivative is obtained after washing with water, extraction with ethanol, and distillation under reduced pressure.
[0030] A method for preparing the above-mentioned bio-based surfactant and crude oil comprises the following steps: (1) Mix isooctyl stearate, nonionic surfactant, and bio-based surfactant and stir evenly; (2) Add an emulsifier to the mixed solution of step (1), stir at high speed at 50°C for 2 hours, and finally add a thickener to adjust the viscosity to obtain crude oil.
[0031] Comparative Example 1 The only difference from Example 1 is that no bio-based surfactant is added and the amount of non-ionic surfactant added is 18 parts.
[0032] Comparative Example 2 The only difference from Example 1 is that no nonionic surfactant is added and the amount of bio-based surfactant added is 18 parts.
[0033] The performance of the crude oil obtained in Example 1-2 and Comparative Example 1-2 was tested. The test method is as follows, and the test results are shown in Table 1: High temperature stability: Place 200 mL of 5% crude oil aqueous solution (mass fraction) at 70°C for 1 hour and observe whether it is stratified. If the solution is still clear and transparent at high temperature and dispersed evenly, it means that the solution has good high temperature stability.
[0034] Emulsification test: Place crude oil and water in a mass ratio of 1:10 in a sample bottle and shake it manually ten times to observe whether the water phase and the oil phase can quickly form a uniform emulsion.
[0035] The 10% crude oil aqueous solution prepared in Example 1-2 and Comparative Example 1-2 was placed in a spraying device and sprayed evenly on wool fibers (fineness of 14-25 μm). 10 g of the crude oil aqueous solution was sprayed on 1 g of wool fibers. The treated wool fibers were placed at a temperature of 25° C. and a relative humidity of 60% for 24 hours of equilibrium, naturally air-dried, and then subjected to performance tests. The test results are shown in Table 2: Among them, degreasing property: the wool fiber after conditioning is washed twice with 35℃ water and once with 15℃ water, dried, and then a grease extractor (Soxhlet extractor) is used to determine the grease content of the washed wool fiber.
[0036] Lubricity: Determine the friction coefficient, specifically: fix the cured wool fiber tightly on the friction table, and use SUS304BA metal plate as the friction partner. Add a 250g weight on the friction table and test at a speed of 50mm / min. The calculation formula of the friction coefficient is as follows: μ=f / N Where μ: sliding friction coefficient, f: dynamic friction (N), N: normal pressure on the sample (N) Table 1 Test results of crude oil properties of Examples 1-2 and Comparative Examples 1-2
[0037] Table 2 Performance test results of wool fibers treated with wool oil in Examples 1-2 and Comparative Examples 1-2
[0038] In addition to the above embodiments, the present invention also includes other implementation modes. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims
1. A crude oil based on a bio-based surfactant, characterized in that: It includes the following components by weight: 70-85 parts of 2-ethylhexyl stearate Nonionic surfactant 9-11 parts Bio-based surfactant 9-11 parts Emulsifier 8-12 parts Thickener 3-5 parts Among them, the bio-based surfactant is a modified glycerol fatty acid ester or a modified sugar derivative.
2. The bio-based surfactant and crude oil according to claim 1, characterized in that: The nonionic surfactant is fatty alcohol polyoxyethylene ether AEO-3.
3. The bio-based surfactant and crude oil according to claim 1, characterized in that: The emulsifiers are castor oil polyoxyethylene ether EL-40 and lauric acid polyoxyethylene ether LAE-9.
4. The bio-based surfactant and crude oil according to claim 1, characterized in that: The emulsifier is castor oil polyoxyethylene ether EL-40 and lauric acid polyoxyethylene ether LAE-9 in a mass ratio of 2-3:7-8.
5. The bio-based surfactant and crude oil according to claim 1, characterized in that: The thickener is trehalose or hydroxypropyl methylcellulose.
6. The bio-based surfactant and crude oil according to claim 1, characterized in that: The modified glycerol fatty acid ester is obtained by adding ethylene oxide to modify glycerol and fatty acid after esterification.
7. The bio-based surfactant and crude oil according to claim 6, characterized in that: The modified glycerol fatty acid ester is prepared by the following preparation method: glycerol and fatty acid are mixed, a solvent is added, the mixture is stirred evenly, a catalyst boron trifluoride is added, the mixture is reacted at a temperature of 180-220° C. for 2-4 hours, ethylene oxide is added after the reaction is completed, the mixture is reacted at 100-160° C. for 1-3 hours, and the modified glycerol fatty acid ester is obtained after post-treatment.
8. The bio-based surfactant and crude oil according to claim 1, characterized in that: The modified sugar derivative is obtained by esterifying glucose and fatty acid sugar and then adding ethylene oxide for modification.
9. The bio-based surfactant and crude oil according to claim 1, characterized in that: The modified sugar derivative is prepared by the following preparation method: glucose and fatty acid are mixed, a solvent is added, the mixture is stirred evenly, a catalyst boron trifluoride is added, the mixture is reacted at a temperature of 160-200° C. for 2-3 hours, ethylene oxide is added after the reaction is completed, the mixture is reacted at 100-120° C. for 1-2 hours, and the modified sugar derivative is obtained after post-treatment.
10. A method for preparing crude oil based on bio-based surfactant according to any one of claims 1 to 9, characterized in that: The following steps are involved: (1) Mix isooctyl stearate, nonionic surfactant, and bio-based surfactant and stir evenly; (2) Add an emulsifier to the mixed solution of step (1), stir at high speed for 1.5-2 hours at a temperature of 40-60° C., and finally add a thickener to adjust the viscosity to obtain crude oil.