CN117702312B

CN117702312B - Polyester POY (polyester pre-oriented yarn) oiling agent and preparation method thereof

Info

Publication number: CN117702312B
Application number: CN202311846792.XA
Authority: CN
Inventors: 朱建成; 沈亚芬; 陈小琴; 宋云飞; 张�杰; 朱通彧
Original assignee: Tongxiang Henglong Chemical Co ltd
Current assignee: Tongxiang Henglong Chemical Co ltd
Filing date: 2023-12-29
Publication date: 2024-07-16
Anticipated expiration: 2043-12-29

Abstract

The invention belongs to the technical field of oiling agents for spinning, and particularly relates to a polyester POY oiling agent and a preparation method thereof, wherein the oiling agent comprises the following raw material components in parts by weight: 40-50 parts of a smoothing agent; 10-20 parts of emulsifying agent; 5-8 parts of antistatic agent; 1-3 parts of bundling agent; 3-6 parts of stabilizer; 5-10 parts of viscosity-temperature viscosity-concentration characteristic regulator; 20-30 parts of deionized water; wherein the polyester POY oiling agent is an oil-in-water emulsion; the viscosity-temperature viscosity-concentration characteristic regulator comprises: the polyester POY oil agent is added with the viscosity-temperature viscosity-concentration characteristic regulator with a slow release function, so that the problem of unstable viscosity-temperature viscosity-concentration characteristic caused by oil agent phase separation can be solved, and the service performance of the oil agent at high temperature is improved.

Description

Polyester POY (polyester pre-oriented yarn) oiling agent and preparation method thereof

Technical Field

The invention belongs to the technical field of spinning oiling agents, and particularly relates to a polyester POY oiling agent and a preparation method thereof.

Background

The trade name of PET polyester (polyethylene terephthalate) silk fabrics is called polyester, and the polyester spinning generally adopts a high-speed spinning-stretching twisting process, namely a Pre-oriented yarn or a partial oriented yarn (POY, pre-Oriented Yarn or Partially Oriented Yarn) and a stretching textured yarn (DTY, draw Texturing Yarn) are combined in two steps, namely a POY-DTY process for short. Currently, the polyester spinning capacity in China is close to 4100 ten thousand tons and accounts for up to 70% of the total world, wherein the annual yield of polyester POY filaments can reach 2500 ten thousand tons. In the chemical fiber spinning and subsequent processing and manufacturing processes, the use of the chemical fiber oiling agent is indispensable, and the chemical fiber oiling agent is required to endow the fiber with good smoothness and cohesion, and greatly reduce static electricity generation or static electricity density so as to ensure that the spinning and subsequent processing are smoothly carried out.

At present, the polyester filament POY oiling agent has serious problems of unstable viscosity temperature and viscosity concentration characteristics when being applied, and is easy to cause phenomena such as broken filaments, broken ends and the like, thereby influencing the production efficiency. The reason is mainly that the oil is generally prepared into emulsion during oiling, spinning is carried out at high temperature, in the spinning process, as the emulsion is heated and water evaporates continuously, the concentration of the oil on the surface layer of the fiber is increased from about 10% to near the anhydrous state, the viscosity of the emulsion is changed accordingly, for example, certain polyether compounds in the oil, particularly monomer components with high content of the random polyether chain segment poly (oxy-isopropyl) are easily separated in a certain concentration and temperature range, a tangential thickening anti-thixotropic fluid type emulsion is formed, the fiber is rubbed with metal or ceramic surface during high-speed operation, the oil attached to the surface of the fiber is subjected to strong shearing action, the polyether components in the emulsion are in a high-viscosity state or viscosity burst at different temperature and concentration ranges, and the phenomenon that the viscosity characteristic of the emulsion is unstable along with the temperature or the concentration of the oil is that the viscosity characteristic of the oil is unstable at the viscosity and temperature. The unstable viscosity-temperature viscosity-concentration characteristic of the oiling agent easily causes obvious tension fluctuation of the fiber in the spinning process, thereby influencing the quality of the fiber. The existing polyester POY high-speed spinning oil has the following common problems: many polyether monomers are not ideal in viscosity-temperature viscosity-concentration characteristics, the molecular weight of the monomers is too large, the viscosity is large at low temperature, uneven oiling is caused, the viscosity is small at high temperature, the oiling agent on the fibers can splash onto a hot roller under the action of centrifugal force, the forming of coke is easily caused by long-time heating, the heat conduction efficiency of a heater is affected slightly, the stretching of tows is uneven, and the number of broken filaments and broken ends is increased, so that the production is affected. The monomer has small molecular weight and generally has a viscosity jump phenomenon, so that the viscosity fluctuation range in the high-speed spinning process is overlarge, uneven oiling can be caused, the coking amount on a hot plate is large, and the quality of the yarn is affected. Therefore, the problem of unstable viscosity-temperature-viscosity-concentration characteristics of the domestic polyester filament POY oiling agent is urgently needed to be overcome, the oiling agent quality is improved, and the market competitiveness is enhanced.

In actual use, because the polyester POY oiling agent needs to play roles in two processes of spinning and texturing, DTY texturing can be completed within one month after the polyester POY filaments are produced, so that the optimal processing performance of the polyester POY filaments can be maintained. And is affected by market fluctuations, a frequent large stock quantity occurs in many factories, or a part of stock is stocked by the sales clients, which results in a storage time of POY filament sometimes up to 3 months or even longer. In the long-term storage process of the POY filaments, the oiling agent attached to the POY filament bundles can permeate into an amorphous area inside the fiber, so that the oiling rate of the surface of the fiber is reduced; and the POY filaments piled for a long time are easy to generate thermal oxidative degradation phenomenon when stored at high temperature in summer, so that the oil content on the surfaces of the POY filaments is reduced. Meanwhile, long-term accumulation of POY filaments can also cause the phenomena of putrefaction, odor and the like of the oiling agent, so that the POY filaments are easy to have low oil content and cannot be subjected to elasticizing production normally, and the quality of the POY filaments is greatly influenced.

Disclosure of Invention

The invention aims to solve the technical problems, and provides a polyester POY (polyester pre-oriented yarn) oiling agent and a preparation method thereof, so as to solve the technical problems of unstable viscosity and concentration characteristics, poor oxidation resistance and poor corrosion resistance of the traditional polyester POY oiling agent.

In view of the above, the invention provides a polyester POY oil agent, which comprises the following raw material components in parts by weight:

wherein the polyester POY oiling agent is an oil-in-water emulsion;

the viscosity-temperature viscosity-concentration characteristic regulator comprises: the viscosity regulator, the viscosity regulating auxiliary agent and the water-locking agent are slow release agents, and the viscosity regulator, the viscosity regulating auxiliary agent and the water-locking agent can be gradually released in the use process.

Further, the viscosity-temperature-viscosity-concentration characteristic regulator comprises the following components in parts by weight:

0.3 to 0.5 part by weight of a viscosity modifier;

1-2 parts by weight of viscosity regulating auxiliary agent;

and 4-6 parts by weight of a water locking agent.

Further, the viscosity modifier includes:

60-70% of carboxymethyl cellulose and/or hydroxypropyl methyl cellulose and/or polyethylene glycol;

and, 30-40% of hydroxyethyl cellulose, and/or polyvinyl alcohol.

Further, the viscosity regulating auxiliary agent is one or more selected from polyacrylic acid, methacrylic acid and sodium alginate.

Further, the water-locking agent is a mixture of hyaluronic acid and pullulan.

Further, the viscosity-temperature-viscosity-concentration characteristic regulator further comprises, in parts by weight:

5-8 parts by weight of nano porous carrier particles;

and 1-2 parts by weight of ethylcellulose.

Further, the nano-porous carrier particles are porous particles subjected to hydrophilic modification treatment, and the hydrophilic modification treatment process comprises the following steps:

Adding 50-80 parts by weight of nano porous carrier particles into 90-120 parts by weight of mixed solution of ethanol and water, uniformly stirring, adding 0.1-0.3 part by weight of sodium hydroxide, heating the obtained mixed solution to 45-55 ℃, fully stirring to uniformly mix, slowly dripping 20-30 parts by weight of surface modifier, reacting for 1-2 hours under stirring, adding 10-20 parts by weight of hydroxyl acrylate, reacting for 2-3 hours under stirring at 40-50 ℃, filtering, and drying to obtain the hydrophilic modified porous particles.

Further, the preparation process of the viscosity-temperature viscosity-concentration characteristic regulator is as follows:

Firstly, adding the viscosity regulator, the viscosity regulating auxiliary agent and the water locking agent into a proper amount of deionized water, uniformly stirring, adding the nano porous carrier particles, performing ultrasonic dispersion treatment for 20-30 min, filtering, and drying the obtained fixed particles for later use;

Then, adding the ethyl cellulose with the formula amount into a proper amount of organic solvent, and stirring to dissolve; and adding the filtered and dried fixed particles into a solution of the ethyl cellulose, and granulating by atomization drying to obtain the nano-porous carrier particles with the surfaces coated with the ethyl cellulose.

Further, the polyester POY oiling agent also comprises 0.01 to 0.1 weight part of cross-linking agent according to weight parts.

The preparation method of the polyester POY oiling agent is used for preparing the polyester POY oiling agent and comprises the following steps:

s1, mixing a formula amount of viscosity-temperature viscosity-concentration characteristic regulator and deionized water, and heating to 60-70 ℃ under stirring;

S2, mixing the smoothing agent, the emulsifying agent, the antistatic agent and the bundling agent according to the formula amount, and heating to 70-80 ℃ under stirring;

S3, adding a stabilizer into the mixed solution obtained in the step S1, and stirring until the mixed solution is fully mixed;

and S4, slowly pouring the mixed solution obtained in the step S2 into the mixed solution obtained in the step S3, stirring at the same time, and cooling the emulsion to room temperature to obtain the polyester POY oiling agent.

In the polyester POY oiling agent, a viscosity temperature viscosity concentration characteristic regulator with a slow release function is added, before the polyester POY oiling agent is used, the components such as a viscosity regulator, a viscosity regulating auxiliary agent and a water locking agent in an aqueous phase are stored in nano porous carrier particles, and are wrapped and sealed by a netlike film layer formed by ethyl cellulose; meanwhile, the released components such as the water locking agent can prevent the evaporation of water in the oil agent, so that the problem of unstable viscosity-temperature-viscosity-concentration characteristics caused by the phase separation of the oil agent is solved, and the service performance of the oil agent at high temperature is improved.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly described below in conjunction with the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are obtained by a person skilled in the art based on the embodiments of the present application, fall within the scope of protection of the present application.

In the description of the present application, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments in accordance with the present application. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that, in the present application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

The polyester POY oiling agent comprises the following raw material components in parts by weight:

wherein the polyester POY oiling agent is an oil-in-water emulsion;

Preferably, the viscosity-temperature-viscosity-concentration characteristic regulator comprises, in parts by weight:

0.3 to 0.5 part by weight of a viscosity modifier;

1-2 parts by weight of viscosity regulating auxiliary agent;

and 4-6 parts by weight of a water locking agent.

As some embodiments of the present invention, the viscosity modifier is selected from one or more of carboxymethyl cellulose, hydroxyethyl cellulose and hydroxypropyl methyl cellulose, polyvinyl alcohol and polyethylene glycol.

Preferably, the polyethylene glycols used in the present invention have a relative molecular weight of between 1000 and 3000.

Preferably, the viscosity modifier comprises:

and, 30-40% of hydroxyethyl cellulose, and/or polyvinyl alcohol.

In the viscosity regulator, the selected carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, polyvinyl alcohol and polyethylene glycol are all water-soluble polymer tackifiers, when the water-soluble polymer tackifiers are released into the polyester POY oiling agent, the viscosity regulator can be dissolved in a water phase in the polyester POY oiling agent to form a network structure in the water phase, when the temperature of the oiling agent is increased, the viscosity of the water phase can be increased, the fluidity and evaporation rate of the water phase can be reduced, and meanwhile, because the polyester POY oiling agent is an oil-in-water emulsion, the network structure of the water phase can also inhibit long-distance movement of oil phase droplets, further inhibit permeation of the oil phase droplets into polyester fibers, and keep the oil content of the fiber surface at a higher level for a long time.

Further, although the viscosity modifiers are all water-soluble polymer tackifiers, the mechanism of their tackifiers is not exactly the same, wherein the mechanism of thickening hydroxyethyl cellulose mainly involves hydration of molecular chains, so that the molecules swell and form a network structure, thereby increasing the viscosity of the aqueous solution; the polyvinyl alcohol forms a hydration network structure through forming intermolecular hydrogen bonds, so that the viscosity of the aqueous solution is increased, and the aqueous solution is called a net-structure tackifier for a moment; the carboxymethyl cellulose, the hydroxypropyl methylcellulose and the polyethylene glycol form a hydration layer or a hydration shell mainly through molecules thereof in water, and then the intermolecular repulsion and expansion are caused, so that the viscosity of the solution is increased, and the water-soluble macromolecular tackifier is called as a hydration tackifier, for example, the hydroxypropyl methylcellulose is obtained by introducing hydroxypropyl or methyl groups into the cellulose, when the hydroxypropyl methylcellulose molecules are dissolved in the water, the hydroxypropyl and methyl groups interact with water molecules through hydrogen bonds, van der Waals force and the like, so that the water molecules can form a hydration layer around the hydroxypropyl methylcellulose molecules, the hydroxypropyl methylcellulose molecules are wrapped in the shells formed by the water molecules, and the mutual repulsion between the molecules with the hydration layer can prevent the hydroxypropyl methylcellulose molecules from being too close, so that the formation of the hydration shell increases the mutual repulsion between the hydroxypropyl methylcellulose molecules, the increase of the repulsive force between the molecules makes the hydroxypropyl methylcellulose molecules difficult to gather together in the water, and the space between the molecules becomes more viscous solution due to the hydration layer.

According to the invention, through the compounding of the viscosity regulators with the two different tackifying mechanisms, a low-concentration 'net structure tackifier' can be fully utilized to form a weak net structure in a water phase, so that the fluidity and evaporation rate of the water phase are reduced, long-distance movement of oil phase liquid drops is inhibited, the penetration of the oil phase liquid drops into polyester fibers is reduced, and the oil content of the fiber surface is maintained for a long time; meanwhile, the repulsive force among tackifier molecules in the 'hydrated tackifier' can be utilized to ensure that the water phase has better short-distance extension fluidity and lubricating capacity, so that the oil agent is endowed with good adhesion and antifriction performance.

As some embodiments of the present invention, the viscosity adjusting assistant is one or more selected from polyacrylic acid, methacrylic acid, chitosan and sodium alginate.

Preferably, the viscosity regulating auxiliary agent is selected from one or more of polyacrylic acid, methacrylic acid and sodium alginate.

More preferably, the viscosity adjusting aid comprises: 50-70% of polyacrylic acid and 30-50% of sodium alginate.

In the use process of the oil agent, the oil agent is influenced by external environmental factors such as air, light, high temperature and the like, fatty acid and other substances in the oil are easily oxidized, so that the fatty acid is free, the acid value of the oil agent is increased, and the reason why a large amount of antioxidant is usually added in the oil agent is why the viscosity adjusting auxiliary agents such as polyacrylic acid, sodium alginate and the like are selected.

As some embodiments of the present invention, the water-locking agent is one or more selected from hyaluronic acid, sodium alginate, pullulan, algal polysaccharide, and betaine.

Preferably, the water-locking agent is a mixture of hyaluronic acid and pullulan.

More preferably, the water-locking agent is a mixture of 30-40% of small-molecule hyaluronic acid and 60-70% of pullulan.

Preferably, the molecular weight of the small molecule hyaluronic acid is 10-40 ten thousand; the molecular weight of the pullulan is 80-130 ten thousand.

In the water-locking agent, the micromolecular hyaluronic acid has better permeability, can quickly permeate into the oil agent in the use process of the oil agent, and can quickly enhance the lubricity and water-locking capability of the oil agent; the molecular weight of the pullulan is relatively large, so that the water locking capacity of the oil solution can be greatly improved; meanwhile, the pullulan polysaccharide has excellent viscosity and gas barrier capability, when the pullulan polysaccharide is diffused and dissolved into the oiling agent, the water locking capability of the oiling agent can be improved, the evaporation of water is reduced, the viscosity and concentration stability of the oiling agent are kept, the viscosity, temperature and viscosity and concentration characteristics of the oiling agent are improved, the adhesive capability of the oiling agent on polyester fibers at high temperature can be improved, and meanwhile, the anti-splashing capability of the oiling agent can be improved. In addition, in the polyester POY filament production process and in the long-term storage process after the production is finished, the pullulan polysaccharide can also prevent oxygen and the like from entering the oil agent, so that the problems of oxidation and spoilage of the oil agent are solved, and the oxidation resistance of the oil agent is improved.

In addition, the moisture absorption capacity of the hyaluronic acid is particularly strong under low humidity, and the moisture absorption capacity becomes weaker under high humidity, so that the hyaluronic acid does not absorb too much water to reduce the ductility and fluidity of the oil when the water content in the oil is large under low temperature; when the water content in the oil agent is reduced at high temperature, the hyaluronic acid can lock water and improve the stability of the components and viscosity of the oil agent.

5-8 parts by weight of nano porous carrier particles;

and 1-2 parts by weight of ethylcellulose.

As some embodiments of the present invention, the nanoporous support particles are selected from one or more of nano-alumina, nano-titania, nano-silica.

Further, the nano-porous carrier particles are porous particles subjected to hydrophilic modification treatment.

Specifically, the hydrophilic modification treatment process comprises the following steps:

Preferably, in the hydrophilic modification treatment, the surface modifier is an amino group-containing siloxane.

Preferably, in the hydrophilic modification treatment process, the volume ratio of the ethanol to the water in the mixed solution of the ethanol and the water is 20-30: 1.

Preferably, in the hydrophilic modification treatment process, the surface modifier is added dropwise within 1-2 hours.

In the hydrophilic modification treatment process, a large number of hydroxyl groups are introduced to the surfaces of porous carrier particles under the catalysis of alkali, so that the porous carrier particles have good hydrophilicity and can be stably dispersed in the water phase in the oil solution.

Preferably, the content of the ethyl cellulose in the solution of the ethyl cellulose is 3-6%.

As some embodiments of the present invention, ethyl cellulose may be dissolved using an organic solvent such as acetone, ethanol, xylene, and the like.

Preferably, the cross-linking agent is 1, 4-butanediol diglycidyl ether, the hyaluronic acid is a linear polymer, and by adding a trace amount of cross-linking agent into the polyester POY oiling agent, after the hyaluronic acid is released, the cross-linking agent can promote the linear polymer of the hyaluronic acid to crosslink, so that a network structure is formed, and the moisturizing and water locking capacities and effects of the polyester POY oiling agent are optimized.

It should be noted that the purpose of adding the crosslinking agent to the oil is to prevent crosslinking of the hyaluronic acid before the hyaluronic acid is released from the viscosity-temperature viscosity-concentration property regulator, so that the release speed of the hyaluronic acid and the degree of crosslinking and interpenetrating with other network structures can be greatly slowed down, and meanwhile, the dispersion uniformity of the hyaluronic acid can be affected, so that the effect of the viscosity-temperature viscosity-concentration property regulator is obviously reduced.

Furthermore, the polyester POY oil solution also comprises 2-5 parts by weight of hyaluronic acid glyceryl monostearate derivatives, wherein the hyaluronic acid glyceryl monostearate derivatives can form a net structure in an oil phase in the oil solution on the one hand, so that the strength of an oil film is enhanced, more importantly, the hyaluronic acid glyceryl monostearate derivatives are amphiphilic substances, the dissolving and stable dispersing capabilities of the oil phase in an aqueous phase can be promoted, the stability of the polyester POY oil solution emulsion is improved, the phase separation of the polyester POY oil solution emulsion is inhibited, and the thixotropic fluid type emulsion thickened by shear force is resisted.

Further, the smoothing agent is a mixture of polyether and mineral oil.

Preferably, the smoothing agent comprises 70-80% polyether and 20-30% mineral oil.

As some embodiments of the invention, the polyether is selected from one or more of C1-C18 fatty alcohol polyoxyethylene polyoxypropylene random copolyethers, random copolyethers of ethylene oxide and propylene oxide, dialkyl capped polyethers, fatty alcohol monoesters or polyol esters.

As some embodiments of the present invention, the emulsifier is selected from one or more of saturated fatty alcohol polyoxyethylene ether, polyoxyethylene cholesterol ether, fatty acid polyethylene glycol ester, polyoxyethylene lauryl ether, polyoxyethylene sorbitan monostearate, sodium oleate, and potassium oleate.

As some embodiments of the present invention, the antistatic agent is selected from one or more of alkyl phosphate potassium salt, alkyl sulfonate salt, alkyl sulfate salt, dodecyl dimethyl amine oxide, alkyl quaternary ammonium salt, fatty alcohol polyoxyethylene ether phosphate salt.

As some embodiments of the present invention, the bundling agent is selected from one or more of fatty acid triethanolamine salt, oleic acid triethanolamine salt, lauryl polyoxyethylene ether, polyoxyethylene polyoxypropylene ether, sulfated castor oil, castor oil polyoxyethylene ether, coconut oil fatty acid diethanolamide.

As some embodiments of the invention, the stabilizer is one or more of long-chain fatty alcohol, coconut oil modified alkyd resin and triethanolamine.

In addition, the invention also provides a preparation method of the polyester POY oiling agent, which is used for preparing the polyester POY oiling agent and comprises the following steps:

S2, mixing the smoothing agent, the emulsifying agent, the antistatic agent, the bundling agent and other auxiliary agents according to the formula amount, and heating to 70-80 ℃ under stirring;

s3, adding the stabilizer and the cross-linking agent into the mixed solution obtained in the step S1, and stirring until the stabilizer and the cross-linking agent are fully mixed;

Preferably, in the step S4, during the process of mixing the mixed solution obtained in the step S2 and the step S3, stirring is performed by using a mechanical stirring manner, and the stirring speed should be not higher than 500rpm; after the mixing is finished, ultrasonic emulsification can be used for 2-3 min under the condition of 300-400W, and then the emulsion is naturally cooled to room temperature.

The polyester POY oiling agent and the preparation method thereof are illustrated by the following specific examples:

Example 1

Preparing a viscosity-temperature viscosity-concentration characteristic regulator:

The formula of the viscosity-temperature viscosity-concentration characteristic regulator is as follows: 0.4 part of viscosity modifier, 1 part of viscosity modifier, 4 parts of water-locking agent, 5 parts of nano porous carrier particles and 1 part of ethyl cellulose;

wherein the viscosity modifier is 60% carboxymethyl cellulose+40% hydroxyethyl cellulose; the viscosity regulating auxiliary agent is polyacrylic acid and sodium alginate; the water locking agent is hyaluronic acid and pullulan; the nano porous carrier particles are nano silicon dioxide which is not subjected to hydrophilic modification treatment;

the preparation process of the viscosity-temperature viscosity-concentration characteristic regulator comprises the following steps:

Firstly, adding the viscosity regulator, the viscosity regulating auxiliary agent and the water locking agent into a proper amount of deionized water, uniformly stirring, adding the nano porous carrier particles, performing ultrasonic dispersion treatment for 20min, filtering, and drying the obtained fixed particles for later use;

Then adding the ethyl cellulose with the formula amount into an appropriate amount of organic solvent, and stirring to dissolve and prepare a solution with the ethyl cellulose content of 3%; and adding the filtered and dried fixed particles into a solution of the ethyl cellulose, and granulating by atomization drying to obtain the nano-porous carrier particles with the surfaces coated with the ethyl cellulose.

Example 2

the formula of the viscosity-temperature viscosity-concentration characteristic regulator is as follows: 0.5 part of viscosity modifier, 2 parts of viscosity modifier, 6 parts of water-locking agent, 8 parts of nano porous carrier particles and 2 parts of ethyl cellulose;

Wherein the viscosity modifier is 60% hydroxypropyl methylcellulose+30% hydroxyethyl cellulose+10% polyvinyl alcohol; the viscosity regulating auxiliary agent is polyacrylic acid and sodium alginate; the water locking agent is hyaluronic acid and pullulan; the nano porous carrier particles are nano silicon dioxide subjected to hydrophilic modification treatment;

Firstly, adding the viscosity regulator, the viscosity regulating auxiliary agent and the water locking agent into a proper amount of deionized water, uniformly stirring, adding the nano porous carrier particles, performing ultrasonic dispersion treatment for 30min, filtering, and drying the obtained fixed particles for later use;

Then adding the ethyl cellulose with the formula amount into an appropriate amount of organic solvent, and stirring to dissolve and prepare a solution with the ethyl cellulose content of 6%; and adding the filtered and dried fixed particles into a solution of the ethyl cellulose, and granulating by atomization drying to obtain the nano-porous carrier particles with the surfaces coated with the ethyl cellulose.

Examples 3 to 8

Preparing polyester POY oiling agent:

The formulation of polyester POY oiling agent is shown in the following table 1, wherein examples 3 to 4 use the viscosity-temperature viscosity-concentration characteristic regulator prepared in the above example 1, and examples 5 to 8 use the viscosity-temperature viscosity-concentration characteristic regulator prepared in the above example 2;

the preparation process of the polyester POY oiling agent comprises the following steps:

TABLE 1 formulation of polyester POY finish

Comparative example 1

Preparing polyester POY oiling agent: comparative example 1 differs from example 5 above only in that the viscosity-temperature viscosity-concentration characteristic regulator prepared in example 1 was used instead of example 2, and the remainder was the same as example 5 above, and no further description is given here.

Comparative example 2

Preparing polyester POY oiling agent: comparative example 1 differs from example 5 above only in that no viscosity-temperature viscosity-concentration characteristic regulator is added, and the remainder is the same as example 5 above, and will not be described again here.

Comparative example 3

Comparative example 1 was different from the above example 5 only in that all the raw material components were directly mixed in the process of preparing the polyester POY finish, and then the mixed solution was heated to 70 c, stirred uniformly and cooled to room temperature.

Then, the oil solutions prepared in examples 3 to 8 and comparative examples 1 to 3 were subjected to performance test by adding water to prepare aqueous solutions having an oil content of 10%, and the results are shown in Table 2 below:

TABLE 2 results of oil Performance test

Further, the oils prepared in examples 3 to 8 and comparative examples 1 to 3 were mixed with water to prepare aqueous solutions having an oil content of 10%, heated and stirred at a rotation speed of 800rpm to simulate friction during use, the heating power was controlled so that the solutions were gradually heated to 100℃at a speed of 5 to 10℃per minute, and then the solutions were kept at 100℃for 9 minutes, and the viscosity of the solutions was measured during heating and stirring, and the results were shown in Table 3 below:

TABLE 3 viscosity measurement results

On the basis, the oiling agents prepared in the examples 3 to 8 and the comparative examples 1 to 3 are added with water to prepare aqueous solution with the oiling agent content of 10%, then the polyester POY yarns with the same specification are oiled, the change of the oiling rate of each yarn with time is tested after the oiling, the oiling rate test is carried out in a constant temperature and humidity box with the temperature of 70 ℃ and the humidity of 60%, and the change of the oiling rate of each yarn every day is recorded, and the test results are shown in the following table 4:

Table 4 results of oil-up rate detection

While the embodiments of the present application have been described in connection with the embodiments thereof, the embodiments of the present application and the features of the embodiments may be combined with each other without conflict, the present application is not limited to the specific embodiments described above, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the application and the scope of the claims, which follow.

Claims

1. The polyester POY oiling agent is characterized by comprising the following raw material components in parts by weight:

40-50 parts of a smoothing agent;

10-20 parts of an emulsifier;

5-8 parts of antistatic agent;

1-3 parts of a bundling agent;

3-6 parts of a stabilizer;

5-10 parts of viscosity-temperature viscosity-concentration characteristic regulator;

20-30 parts of deionized water;

wherein the polyester POY oiling agent is an oil-in-water emulsion;

The viscosity-temperature viscosity-concentration characteristic regulator comprises the following components in parts by weight:

0.3-0.5 parts by weight of a viscosity modifier;

1-2 parts by weight of a viscosity adjusting auxiliary agent;

4-6 parts by weight of a water locking agent;

5-8 parts by weight of nano porous carrier particles;

and 1-2 parts by weight of ethyl cellulose;

the viscosity-temperature viscosity-concentration characteristic regulator is a slow release agent, and can gradually release the viscosity regulator, the viscosity regulating auxiliary agent and the water locking agent in the viscosity-temperature viscosity-concentration characteristic regulator in the use process;

The viscosity modifier comprises:

And, 30-40% of hydroxyethyl cellulose and/or polyvinyl alcohol;

The viscosity regulating auxiliary agent is one or more selected from polyacrylic acid, methacrylic acid and sodium alginate;

The water locking agent is a mixture of hyaluronic acid and pullulan;

then, adding the ethyl cellulose with the formula amount into a proper amount of organic solvent, and stirring to dissolve; adding the filtered and dried fixed particles into a solution of ethyl cellulose, and granulating through atomization and drying to obtain nano-porous carrier particles with the surfaces coated with the ethyl cellulose;

2. The polyester POY oil according to claim 1, wherein the nano-porous carrier particles are hydrophilic modified porous particles, and the hydrophilic modification process comprises:

adding 50-80 parts by weight of nano porous carrier particles into 90-120 parts by weight of mixed liquid of ethanol and water, uniformly stirring, adding 0.1-0.3 part by weight of sodium hydroxide, heating the obtained mixed liquid to 45-55 ℃, fully stirring to uniformly mix, slowly dropwise adding 20-30 parts by weight of surface modifier, reacting for 1-2 hours under stirring, adding 10-20 parts by weight of hydroxyl acrylate, reacting for 2-3 hours under stirring at 40-50 ℃, filtering, and drying to obtain the hydrophilic modified porous particles.

3. The polyester POY finish according to claim 1, further comprising 0.01 to 0.1 parts by weight of a cross-linking agent.