CN114150403A

CN114150403A - PBS spinning oil, production method and application thereof

Info

Publication number: CN114150403A
Application number: CN202111636872.3A
Authority: CN
Inventors: 孙乐乐; 王小花
Original assignee: Zhejiang Transfar Co Ltd
Current assignee: Zhejiang Transfar Co Ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-03-08
Anticipated expiration: 2041-12-29
Also published as: CN114150403B

Abstract

The invention belongs to the technical field of auxiliary agent manufacturing in synthetic fiber processing technology, and particularly relates to a PBS spinning oil agent, a generation method and application thereof. Aiming at the inherent characteristics of large internal stress, large elasticity, poor tow bundling property, large static electricity during processing, easy adhesion of a hot roller and the like of the PBS fiber, one or more of polyalcohol and polyhydroxy polyether is added on the basis of the formula of the traditional spinning oil agent, and experiments show that the introduction of the additive can simultaneously improve the bundling property, the antistatic property and the emulsibility of the PBS spinning fiber, effectively improve the problems of large static voltage, poor bundling property and easy roller winding of the PBS fiber in the spinning process, successfully prepare the PBS fiber spinning oil agent, ensure the smooth production of the PBS fiber and fill the market blank.

Description

PBS spinning oil, production method and application thereof

Technical Field

The invention belongs to the technical field of auxiliary agent manufacturing in synthetic fiber processing technology, and particularly relates to a PBS spinning oil agent, a generation method and application thereof.

Background

With the increasingly prominent environmental protection problem, more and more enterprises pay attention to the research and development and production of environmental protection products. The chemical fiber industry is no exception, and various scientific research institutions, enterprise institutions and the like seek to develop degradable green environment-friendly materials. Among them, polybutylene succinate (PBS) is preferred because of its excellent biodegradability and good processability. Although PBS is widely used in the fields of packaging, tableware, disposable medical supplies, biomedical polymer materials and the like, PBS is still in the beginning of the fiber field, and the reason is mainly limited by the preparation technology of PBS resin and the development of oil special for PBS spinning.

The chemical fiber oil agent is an essential functional auxiliary agent in the spinning and subsequent processing processes of chemical fibers, and can effectively improve the smoothness, bundling property and antistatic property of tows. Due to the inherent characteristics of PBS, the prepared fibers have high internal stress and high elasticity, so that tows are poor in bundling property, easy to disperse and high in post-processing difficulty, and the industrial promotion of PBS fibers is greatly limited. In addition, the PBS fiber has problems of large static electricity, easy adhesion to hot rollers, and the like during processing, which all affect the spinning stability. The existing spinning oil in the market mainly aims at polyester, chinlon, polypropylene and other materials, and the performance of the existing spinning oil hardly meets the PBS spinning processing requirement, so that the development of a PBS spinning special oil is necessary, the problems of convergence, static resistance and smoothness in PBS spinning processing and mutual restriction and balance among the three are solved, and the industrial production of PBS fiber is met.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the PBS spinning oil agent, the production method and the application thereof, and the polyalcohol or polyhydroxy polyether additive is introduced into the PBS spinning oil agent, so that the smoothness with low viscosity can be ensured, the PBS spinning oil agent has better bundling property and good hygroscopicity, can effectively reduce the electrostatic voltage during friction and improve the antistatic property, and is particularly suitable for the PBS spinning fiber processing.

In order to achieve the purpose, the invention provides a spinning oil agent, which comprises the following components in parts by weight: 30-70 parts of a smoothing agent; 10-30 parts of an emulsifier; 10-30 parts of a sizing agent; 3-15 parts of antistatic agent, 1-10 parts of functional regulator and 1-10 parts of deionized water; the spinning oil agent also contains an additive with the weight less than or equal to 10 parts, wherein the additive is one or more of polyalcohol and polyhydroxy polyether, and the additive can play roles of bundling, antistatic and emulsifying when the spinning oil agent is used.

Preferably, the molecular weight of the polyhydroxy polyether is less than or equal to 3000, preferably the molecular weight is less than or equal to 3000, more preferably the molecular weight is less than or equal to 1000.

More preferably, the spin finish contains 5 parts by weight or less of the additive.

Preferably, the smoothing agent is one or more of mineral oil, vegetable oil, synthetic ester and polyether.

Preferably, the emulsifier is a mixture of one or more of castor oil polyoxyethylene ether, polyethylene glycol fatty acid ester, fatty alcohol polyoxyethylene ether, fatty acid polyoxyethylene ester, span series and tween series.

Preferably, the bundling agent is one or a mixture of more of castor oil polyoxyethylene ether, polyethylene glycol fatty acid ester, fatty acid diethanolamide, fatty acid polyoxyethylene ester, fatty alcohol polyoxyethylene ether and polyacrylic acid.

Preferably, the antistatic agent is one or a mixture of more of fatty alcohol polyoxyethylene ether, castor oil polyoxyethylene ether, alkyl phosphate ester salt, alkyl polyoxyethylene ether phosphate ester salt, alkyl sulfonate, higher alcohol sulfate ester salt, higher alcohol ether sulfate ester salt and higher alcohol ether carboxylate.

Preferably, the functional regulator comprises one or more of a solubilizer, a pH adjuster, and a bactericide.

According to another aspect of the invention, the production method of the spinning oil is provided, the emulsifier, the bundling agent, the antistatic agent, the additive, the function regulator and the deionized water are mixed according to the proportion, heated and stirred uniformly, then the smoothing agent is added, and after stirring uniformly, the mixture is filtered and packaged to prepare the PBS spinning oil.

According to another aspect of the invention, the application of the spinning oil is provided for the spinning fiber processing of PBS.

Generally, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:

(1) aiming at the inherent characteristics and defects of large internal stress, large elasticity, poor tow bundling property, large static electricity during processing, easy adhesion to hot rollers and the like of the PBS fiber, the invention adds the polyalcohol or polyhydroxy polyether additive on the basis of the formula of the traditional spinning oil agent. The PBS spinning oil agent provided by the invention can ensure the smoothness of the PBS fiber with low viscosity, has better bundling property and good hygroscopicity, and can effectively reduce the electrostatic voltage during friction and improve the antistatic property.

(2) In the preferred embodiment of the invention, polyethylene glycol with the molecular weight less than or equal to 1000 is introduced into the spinning oil agent, so that compared with the oil agent without polyethylene glycol or the spinning oil agent used for nylon or terylene in the prior art, the antistatic property and the hairiness length of the PBS fiber obtained by spinning are both obviously reduced, and excellent antistatic property and bundling property are shown.

(3) The spinning oil provided by the invention is a formula of the special oil for PBS spinning, effectively solves the problems of large electrostatic voltage, poor bundling property and easiness in winding a roller of PBS fibers in the spinning process, successfully prepares the PBS fiber spinning oil, can ensure the smooth production of the PBS fibers, and fills the market blank specially suitable for PBS spinning fiber processing. And the production method is simple and can be used for large-scale production and application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The convergence, antistatic property and smoothness during fiber processing complement each other and are mutually restricted. The problems of bundling property, antistatic property and smoothness during PBS fiber processing are mainly solved, and how to balance the three properties is important. In the face of the problem of poor strand integrity of the oiling agent, a traditional oiling agent formula generally considers a substance with large molecular weight and high viscosity, the intermolecular force between the oiling agent and the fibers is improved through the substance with large molecular weight, the mutual connection effect between the fibers is enhanced, and meanwhile, the substance can reduce the relative slippage between the fibers, so that the strand integrity is improved. However, the high molecular weight substance also causes the friction coefficient of the fibers and other friction devices to increase, so that the friction and the stretching of the fibers on the inner layer and the outer layer of the tows are inconsistent, the bundling property of the tows is affected, and particularly, the fibers with certain elasticity, such as PBS fibers, have larger influence. Traditional polyester yarns, nylon yarns and the like have relatively small elasticity, high strength and low requirements on bundling property and antistatic property, and can be guaranteed by a common traditional method, but the bundling property requirement is higher for the PBS type fibers, and the traditional method cannot meet the requirements easily, but in turn is suitable for oil solutions for processing the PBS fibers and can also meet the processing requirements of the conventional polyester yarns, nylon yarns and the like.

In addition, the antistatic property of the oil agent also obviously influences the bundling property, the static electricity is large, the mutual repulsion between fibers is large, and the bundling property is poor; for the subsequent warping weaving process, when the electrostatic aggregation degree is high, the surrounding air can be punctured, so that the silk strips generate larger jumping, and the dyeing and even the end breakage are influenced by unstable tension. In order to solve the problems, in consideration of the fact that the traditional macromolecular substance has large limitation and limited adjustable space and is difficult to achieve balance with other properties due to the fact that the traditional macromolecular substance improves bundling property, the invention introduces the polyalcohol or polyhydroxy polyether additive into the formula of the oiling agent for PBS spinning, and experiments prove that the improved oiling agent can ensure low-viscosity smoothness and has good bundling property and good hygroscopicity, so that the electrostatic voltage during friction can be effectively reduced, and the antistatic property is improved.

Specifically, the PBS spinning oil provided by the invention comprises the following components in parts by weight: 30-70 parts of a smoothing agent; 10-30 parts of an emulsifier; 10-30 parts of a sizing agent; 3-15 parts of antistatic agent, 1-10 parts of deionized water and 1-10 parts of functional regulator; the spinning oil agent also contains additive with weight less than or equal to 10 parts, the additive is one or more of polyalcohol and polyhydroxy polyether, and the additive can play the roles of bundling, antistatic and emulsification when the spinning oil agent is used.

In some embodiments, the polyhydroxy polyether is a polyhydroxy polyether with a molecular weight of 3000 or less, and it has been found in experiments that a polyhydroxy polyether with a larger molecular weight may cause the degradation of oil solution bundling property, preferably a polyhydroxy polyether with a molecular weight of 3000 or less, more preferably an oligomer polyol with a molecular weight of 1000 or less, and most preferably a polyethylene glycol with a molecular weight of 1000 or less, including but not limited to PEG200, PEG400, PEG600, and the like. The polyol small molecule can be, for example, ethylene glycol, glycerol, and the like.

The addition amount of the additive in the spinning oil is not suitable to be excessive, and experiments show that firstly, the addition amount of the additive has a remarkable effect in a certain range, and the performance can not be obviously improved with the increase of the addition amount; secondly, the excessive small-amount additive can affect the heat resistance of the whole product and is easy to volatilize at high temperature; thirdly, the additive has strong polarity and better hydrophilicity, and the water content is increased and the surface viscosity is increased due to excessive addition, but the fiber smoothness is easily deteriorated.

In some embodiments, the smoothing agent is a mixture of one or more of mineral oil, vegetable oil, synthetic ester, and polyether. Specifically, the mineral oil can be 15# to 50# white oil; the synthetic ester comprises monoester, diester and polyol ester, and specifically can be C₈～C₂₀Or C is a higher fatty acid ester of a monohydric alcohol₁₂～C₁₈Such as specifically one or more of a glycol ester of a neopentyl glycol fatty acid ester, a trimethylolpropane fatty acid ester, a triol ester of a trimellitic acid ester, and a tetraol ester of a pentaerythritol fatty acid ester; the polyether is a random or block polyether with a molecular weight of 500-2000 (the polyether used as the smoothing agent has no requirement on the number of hydroxyl groups).

In some embodiments, the emulsifier is one or more of castor oil polyoxyethylene ether, polyethylene glycol fatty acid ester, fatty alcohol polyoxyethylene ether, fatty acid polyoxyethylene ester, span series, and tween series. The bundling agent is one or a mixture of more of castor oil polyoxyethylene ether, polyethylene glycol fatty acid ester, fatty acid diethanolamide, fatty acid polyoxyethylene ester, fatty alcohol polyoxyethylene ether, polyacrylic acid and the like. The antistatic agent is one or a mixture of more of fatty alcohol polyoxyethylene ether, castor oil polyoxyethylene ether, alkyl phosphate, alkyl polyoxyethylene ether phosphate, alkyl sulfonate, higher alcohol sulfate, higher alcohol ether sulfate and higher alcohol ether carboxylate.

The functional regulator of the present invention comprises one or more of a solubilizer, a pH adjuster and a bactericide. In some embodiments, the solubilizing agent is one or more of a polyethylene glycol fatty acid ester, span, tween, and the like; the pH regulator is one or more of potassium hydroxide, sodium hydroxide, glacial acetic acid, etc.; the bactericide is a commonly used bactericide auxiliary selected from spinning oil.

The production method of the spinning oil agent can be carried out according to the following steps: mixing an emulsifier, a bundling agent, an antistatic agent, an additive, a function regulator and deionized water according to a ratio, heating and stirring uniformly, and heating to 30-80 ℃, preferably 40-60 ℃; and adding a smoothing agent, uniformly stirring, filtering and packaging to prepare the PBS spinning oil agent.

The spinning oil provided by the invention is used for processing PBS spinning fibers, and the bundling property, static electricity and smoothness of the obtained PBS fibers are evaluated by the following specific evaluation method:

1. bundling property evaluation method:

shearing hairiness length measurement method: and (3) taking a certain length of the filament bundle, fixing one end of the filament bundle, hanging a weight with a certain weight at the other end of the filament bundle to enable the filament bundle to naturally droop, cutting the filament bundle from the middle after standing and stabilizing, and measuring the length of the dispersed fibers at the position of the upper half section of the cut, wherein the larger the length is, the poorer the bundling property is.

2. Static evaluation method

A friction electrostatic instrument is adopted to test dynamic electrostatic voltage of friction between fibers and metal and between fibers and ceramic, and the larger the electrostatic voltage is, the worse the antistatic property is.

3. Smoothness testing method

The larger the dynamic friction coefficient and the friction coefficient are when the fiber and the metal and the fiber and the ceramic are rubbed by adopting a fiber friction coefficient instrument, the poorer the smoothness is.

The following are comparative examples and examples:

the finish formulations of comparative examples 1 to 4 and the PBS spin finish formulations of examples 1 to 3 are listed in tables 1 to 7, respectively:

table 1 spin finish formulation for comparative example 1

Table 2 spin finish formulation for comparative example 2

Name of raw materials	Ratio of occupation of
		Isomeric tridecanol oleates	15
Neopentyl glycol oleate	15
		20# white oil	5
Stearic acid isooctyl ester	12
		Castor oil polyoxyethylene ether (12EO)	10
Castor oil polyoxyethylene ether(20EO)	5
		Isomeric tridecanol polyoxyethylene ether (9EO)	6
Stent-80	8
		C_12～14Alkyl phosphate polyoxyethylene ether (3EO)	2
Sodium di (isooctyl) sulfosuccinate	3
		Fatty alcohol (C)_12～14) Polyoxyethylene ether (3EO)	5
PEG400 dilaurate	7
		Deionized water	7

TABLE 3 spin finish formulation for comparative example 3

Table 4 spin finish formulation for comparative example 4

TABLE 5 PBS spin finish formulation of example 1

TABLE 6 PBS spin finish formulation of example 2

TABLE 7 spin finish formulation of example 3

Comparative example 5

The oil agent formula is a commercially available terylene FDY oil agent 1.

Comparative example 6

The oil agent formula is a commercially available terylene FDY oil agent 2.

The PBS spin finishes of the above examples and comparative examples were used in PBS spun fiber processing, respectively, and the bundling property, static property, and smoothness of the resulting PBS fibers were tested, and the results are shown in table 8:

TABLE 8 evaluation results of the properties of fibers spun with PBS using the finish formulations of the different examples and comparative examples

Comparative examples 1, 2 and 4, castor oil ethoxylate (20EO) used in the conventional oil formulation was replaced with castor oil ethoxylate (12EO) or cocodiethanolamide to improve its overall performance. However, experiments show that after the coconut diethanolamide is replaced by the coconut diethanolamide, the friction coefficient and the hairiness length are slightly increased, namely the smoothness and the bunching property are poor, and the antistatic property is good; after the castor oil polyoxyethylene ether (12EO) is replaced, the friction coefficient and the electrostatic voltage are slightly large, the hairiness length has no obvious difference, namely the smoothness and the antistatic property are slightly poor, and the bundling property has no obvious change. Comparative examples 1 and 3 in the formula of the conventional oil agent, after castor oil polyoxyethylene ether (12EO) is added, the hairiness length is reduced, the friction coefficient is increased, the electrostatic voltage is not obviously changed, and the conditions that the convergence is better, the smoothness is worse and the antistatic property is not obviously different are shown. In comparative examples 1 to 4, attempts were made to satisfy the requirements of PBS spin finish by reducing the molecular weight of the emulsifier therein on the basis of the conventional finish formulation, but cannot be improved at the same time from the viewpoint of the static property and the hairiness length of comparative examples 1 to 4.

In examples 1, 2 and 3, the castor oil polyoxyethylene ether (20EO) was replaced by PEG200 or PEG600, but the friction coefficient did not change significantly, but the electrostatic voltage and the hairiness length were decreased significantly, indicating that both the antistatic property and the bundling property were significantly improved, and the smoothness was not significantly changed. And the PEG200 is used for replacing the cocoanut oil diethanolamide in the examples 1 and 3, the electrostatic voltage is further reduced, the length of the hairiness and the friction coefficient are not obviously changed, and the antistatic property is changed, but the bundling property and the smoothness effect are not obviously increased any more. The invention is proved that the polyethylene glycol additive with the molecular weight less than 1000 is introduced into the oil agent formula, so that the static electricity and the hairiness length are obviously reduced compared with the traditional oil agent, the static electricity and the convergence can be coordinated, and the requirements of the oil agent for PBS spinning are met.

Comparative examples 5 and 6 are respectively a commercial polyester FDY oiling agent formula, compared with the examples of the invention, the friction coefficient is not obviously different, the smoothness is basically equivalent to the examples, but the static voltage and the hairiness length of the competitive products are obviously higher than the examples, which shows that the antistatic property and the bundling property are poor, and the competitive products cannot be used for the spinning of PBS.

It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The spinning oil is characterized by comprising the following components in parts by weight: 30-70 parts of a smoothing agent; 10-30 parts of an emulsifier; 10-30 parts of a sizing agent; 3-15 parts of antistatic agent, 1-10 parts of functional regulator and 1-10 parts of deionized water;

the spinning oil agent also contains an additive with the weight less than or equal to 10 parts, wherein the additive is one or more of polyalcohol and polyhydroxy polyether, and the additive can play roles of bundling, antistatic and emulsifying when the spinning oil agent is used.

2. The spin finish of claim 1 wherein the molecular weight of the polyhydroxy polyether is less than or equal to 3000.

3. The spin finish of claim 1, wherein the polyhydroxy polyether is an oligomeric polyol having a molecular weight of less than or equal to 3000.

4. The spin finish of claim 1, wherein the additive is present in an amount of less than or equal to 5 parts by weight of the spin finish.

5. The spin finish of claim 1, wherein the smoothing agent is one or more of a mixture of mineral oil, vegetable oil, synthetic ester, and polyether.

6. The spin finish of claim 1, wherein the emulsifier is a mixture of one or more of castor oil polyoxyethylene ether, polyethylene glycol fatty acid esters, fatty alcohol polyoxyethylene ethers, fatty acid polyoxyethylene esters, span series, and tween series.

7. The spin finish of claim 1, wherein the bundling agent is a mixture of one or more of castor oil polyoxyethylene ether, polyethylene glycol fatty acid ester, fatty acid diethanolamide, fatty acid polyoxyethylene ester, fatty alcohol polyoxyethylene ether, and polyacrylic acid.

8. The spin finish of claim 1 wherein the antistatic agent is one or more of fatty alcohol polyoxyethylene ether, castor oil polyoxyethylene ether, alkyl phosphate, alkyl polyoxyethylene ether phosphate, alkyl sulfonate, higher alcohol sulfate, higher alcohol ether sulfate, and higher alcohol ether carboxylate.

9. The method for producing a spin finish according to any of claims 1 to 8, wherein the emulsifier, the bundling agent, the antistatic agent, the additive, the function regulator and the deionized water are mixed in proportion, heated and stirred uniformly, then the smoothing agent is added, and after stirring uniformly, the mixture is filtered and packaged to produce the PBS spin finish.

10. Use of a spin finish according to any of claims 1 to 8 for the spinning fiber processing of PBS.