A polyester spinning oil containing cyclic carbonate and preparation method thereof

Abstract

The present invention relates to the technical field of spinning auxiliaries, and discloses a polyester spinning oil containing cyclic carbonate and a preparation method thereof. The spinning oil comprises the following components by mass: 40-60 parts of a smoothing agent, 15-30 parts of an emulsifier, 5-10 parts of an antistatic agent, 1-2 parts of an additive, and 8-12 parts of water, and the smoothing agent comprises a cyclic carbonate. The main component of the smoothing agent in the spinning oil is a cyclic carbonate, and the raw materials of the cyclic carbonate are carbon dioxide and an epoxy compound, which is more environmentally friendly when used as a smoothing agent; the side chain groups R1 and R2 of the cyclic carbonate are adjusted and combined, which can significantly improve the smoothness, permeability and stability of the spinning oil, can be more suitable for the spinning process, and can significantly reduce the occurrence of problems such as hairy yarns and broken ends during spinning.

Description

Technical Field

[0001] The invention relates to the technical field of spinning auxiliaries, in particular to a polyester spinning oil containing cyclic carbonate and a preparation method thereof. Background Art

[0002] Spinning oil plays an important role in the polyester production process. It forms an oil film on the fiber surface, reduces the friction between the fiber and the device, eliminates the static electricity generated during the spinning process, and makes the fiber less likely to loosen and has a better touch. The main component of the polyester spinning oil is a smoothing agent, which is mainly composed of mineral oil, synthetic esters or fatty acids, and fatty alcohol polyether substances. It plays a smoothing role in the spinning oil. For example, the publication number CN111074551A discloses a polyester spinning oil, and its smoothing agent component is cycloalkyl mineral oil. For example, the publication number CN106939514A discloses a polyester FDY spinning oil, and the smoothing agent in the spinning oil includes one or more of mineral oil, 2-ethylhexyl sebacate, dioctyl sebacate, trimethylolpropane oleate, neopentyl glycol coconut oleate, polyoxypropylene thiodipropionic acid ether and lauric acid ester.

[0003] At present, the raw materials of spinning oil lubricants in the prior art are mainly derived from petrochemical products. Such raw materials will cause environmental pollution during production and use, which is not in line with my country's low-carbon, environmentally friendly and green development concept. Therefore, in order to meet my country's "dual carbon standards", it is necessary to provide a spinning oil lubricant component that is greener throughout its life cycle. Carbonate is a compound synthesized from carbon dioxide as a raw material. Cyclic carbonates with a cyclic structure can be synthesized using carbon dioxide and epoxy compounds. At the same time, the cyclic structure of cyclic carbonates can be designed to have a richer structure. Therefore, cyclic carbonates can be used as a preferred solution for new green and environmentally friendly spinning oil lubricants. Summary of the invention

[0004] In order to overcome the problems existing in the above-mentioned prior art, the present application provides a polyester spinning oil containing cyclic carbonate and a preparation method thereof. The smoothing agent in the spinning oil component is cyclic carbonate. By using the self-designed cyclic carbonate as a smoothing agent, the smoothness, permeability and stability of the spinning oil can be significantly improved, the spinnability of the oil can be significantly improved, and the occurrence of abnormal problems such as hairy yarns and broken ends in the spinning process can be significantly reduced.

[0005] The specific technical scheme of the present invention is:

[0006] A polyester spinning oil containing cyclic carbonate comprises the following components by weight: 40-60 parts of a smoothing agent, 15-30 parts of an emulsifier, 5-10 parts of an antistatic agent, 1-2 parts of an additive, and 8-12 parts of water.

[0007] Furthermore, the smoothing agent includes cyclic carbonate, and the molecular structure of the cyclic carbonate is as shown:

[0008] R1 in the cyclic carbonate molecular structure is selected from one or more of hydrogen, alkyl, alkoxy, aryl and halogen; R2 in the cyclic carbonate molecular structure is selected from one or more of hydrogen, alkyl, alkoxy, aryl and halogen; R1 and R2 may form a cyclic structure;

[0009] The number of carbon atoms of the alkyl group is 1 to 16;

[0010] The alkoxy group has 1 to 16 carbon atoms;

[0011] The number of carbon atoms in the ring structure is 4 to 8;

[0012] The aryl group includes 0 to 5 substituents, and the substituents of the aryl group are selected from one or more of alkyl, alkoxy and halogen; the carbon number of the alkyl group of the aryl substituent is 0 to 1, and the carbon number of the alkoxy group of the aryl substituent is 0 to 1.

[0013] The present application provides a polyester spinning oil containing cyclic carbonate, in which the main component of the smoothing agent is cyclic carbonate, which can be prepared by the reaction of carbon dioxide and epoxy compounds, and has the characteristics of environmental protection and greenness; in addition, the present application also designs and combines the side chain groups of cyclic carbonate, and obtains a smoothing agent with higher performance by adjusting and combining the side chain groups R1 and R2. The use of the cyclic carbonate provided by the present application can significantly improve the smoothness, permeability and stability of the spinning oil, can significantly improve the spinnability of the oil, and reduce abnormal phenomena such as hairy yarns and broken ends during spinning.

[0014] Preferably, the smoothing agent includes one or more of ethylene carbonate, propylene carbonate, 1,2-butenyl carbonate, 1,2-hexenyl carbonate, 1,2-octenyl carbonate, 1,2-decenyl carbonate, 1,2-dodecenyl carbonate, 1,2-hexadecenyl carbonate, styrene cyclic carbonate, cyclohexenyl carbonate and cyclooctenyl carbonate.

[0015] Preferably, the emulsifier includes one or more of alkyl glycoside, isomeric fatty alcohol, polyoxyethylene ether, fatty acid polyoxyethylene ester, emulsifier Span and emulsifier Tween.

[0016] Preferably, the alkyl glycoside includes one or more of octyl glucoside, decyl glucoside, lauryl glucoside and tetradecyl glucoside.

[0017] Furthermore, the isomeric fatty alcohol structure of the isomeric fatty alcohol polyoxyethylene ether includes one or more of C8~C15 branched isomeric alcohols.

[0018] Furthermore, the ester structure of the fatty acid polyoxyethylene ester includes monoester and / or diester, and the fatty acid structure of the fatty acid polyoxyethylene ester includes one or more of oleic acid, stearic acid and lauric acid.

[0019] Preferably, the antistatic agent includes one or more of C8-C15 alkyl sulfonates, C10-C16 alkyl sulfates and C4-C10 alkyl polyether phosphates.

[0020] Furthermore, the additives include preservatives and antioxidants, the preservatives include one or more of 1,2-benzisothiazolin-3-one, sodium pyrithione and potassium sorbate, and the antioxidants include one or more of 2,6-di-tert-butyl-p-cresol, butylated hydroxyanisole and tert-butylhydroquinone.

[0021] A method for preparing a polyester spinning oil containing cyclic carbonate comprises the following steps: adding an emulsifier, an antistatic agent, a smoothing agent, deionized water, a preservative and an antioxidant into a stirrer in proportion, stirring the mixture evenly and filtering the mixture to obtain the polyester spinning oil containing cyclic carbonate.

[0022] Compared with the prior art, this application has the following technical effects:

[0023] (1) The main component of the lubricant in the spinning oil is cyclic carbonate, the raw materials of which are carbon dioxide and epoxide. It is more environmentally friendly to use it as a lubricant;

[0024] (2) The present application adjusts and combines the side chain groups R1 and R2 of the cyclic carbonate, which can significantly improve the smoothness, permeability and stability of the spinning oil, make it more suitable for the spinning process, and significantly reduce the occurrence of problems such as lint and broken ends during the spinning process. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the embodiments.

[0026] Overall embodiment:

[0027] A polyester spinning oil containing cyclic carbonate comprises the following components by weight: 40-60 parts of a smoothing agent, 15-30 parts of an emulsifier, 5-10 parts of an antistatic agent, 1-2 parts of an additive, and 8-12 parts of water.

[0028] The smoothing agent includes a cyclic carbonate, and the molecular structure of the cyclic carbonate is as shown in: R1 in the molecular structure of the cyclic carbonate is selected from one or more of hydrogen, alkyl, alkoxy, aryl and halogen; R2 in the molecular structure of the cyclic carbonate is selected from one or more of hydrogen, alkyl, alkoxy, aryl and halogen; R1 and R2 can form a cyclic structure; the number of carbon atoms of the alkyl group is 1 to 16; the number of carbon atoms of the alkoxy group is 1 to 16; the number of carbon atoms of the cyclic structure is 4 to 8; the aryl group includes 0 to 5 substituents, and the substituents of the aryl group are selected from one or more of alkyl, alkoxy and halogen; the number of carbon atoms of the alkyl group of the aryl substituent is 0 to 1, and the number of carbon atoms of the alkoxy group of the aryl substituent is 0 to 1;

[0029] The smoothing agent includes one or more of ethylene carbonate, propylene carbonate, 1,2-butenyl carbonate, 1,2-hexenyl carbonate, 1,2-octenyl carbonate, 1,2-decenyl carbonate, 1,2-dodecenyl carbonate, 1,2-hexadecenyl carbonate, styrene cyclic carbonate, cyclohexenyl carbonate and cyclooctenyl carbonate;

[0030] The emulsifier includes one or more of alkyl glycoside, isomeric fatty alcohol, polyoxyethylene ether, fatty acid polyoxyethylene ester, emulsifier Span and emulsifier Tween; the alkyl glycoside includes one or more of n-octyl glucoside, decyl glucoside, lauryl glucoside and tetradecyl glucoside; the isomeric fatty alcohol structure of the isomeric fatty alcohol polyoxyethylene ether includes one or more of C8-C15 branched isomeric alcohols; the ester structure of the fatty acid polyoxyethylene ester includes monoester and / or diester, and the fatty acid structure of the fatty acid polyoxyethylene ester includes one or more of oleic acid, stearic acid and lauric acid;

[0031] The antistatic agent includes one or more of C8~C15 alkyl sulfonate, C10~C16 alkyl sulfate and C4~C10 alkyl polyether phosphate;

[0032] The additives include preservatives and antioxidants, the preservatives include one or more of 1,2-benzisothiazolin-3-one, sodium pyrithione and potassium sorbate, and the antioxidants include one or more of 2,6-di-tert-butyl-p-cresol, butylated hydroxyanisole and tert-butylhydroquinone;

[0033] A method for preparing a polyester spinning oil containing cyclic carbonate comprises the following steps: adding an emulsifier, an antistatic agent, a smoothing agent, deionized water, a preservative and an antioxidant into a stirrer in proportion, stirring the mixture evenly and filtering the mixture to obtain the polyester spinning oil containing cyclic carbonate.

[0034] Embodiment 1:

[0035] A polyester spinning oil containing cyclic carbonate, comprising the following components by weight: 55 parts of a smoothing agent (cyclic carbonate), 25 parts of an emulsifier, 8.5 parts of an antistatic agent, 1.5 parts of an additive, and 10 parts of water;

[0036] The smoothing agent comprises, by weight, 15 parts of 1,2-octenyl carbonate, 10 parts of cyclohexenyl carbonate, 15 parts of 1,2-hexenyl carbonate, and 15 parts of styrene cyclic carbonate;

[0037] The emulsifier includes 7 parts of n-octyl glucoside, 6 parts of isomeric decanol polyoxyethylene ether (E1006), 6 parts of dioleic acid polyoxyethylene ester (400DO), and 6 parts of monolauric acid polyoxyethylene ester (300ML) by mass.

[0038] The antistatic agent includes 3 parts of dodecyl sulfonate, 2 parts of decyl sulfate, and 3.5 parts of octanol polyether phosphate by weight;

[0039] The additives include, by weight, 0.7 parts of 1,2-benzisothiazolin-3-one, 0.3 parts of sodium pyrithione, 0.25 parts of 2,6-di-tert-butyl-p-cresol, and 0.25 parts of butylated hydroxyanisole.

[0040] Embodiment 2:

[0041] A polyester spinning oil containing cyclic carbonate, comprising the following components by weight: 55 parts of a smoothing agent (cyclic carbonate), 25 parts of an emulsifier, 8.5 parts of an antistatic agent, 1.5 parts of an additive, and 10 parts of water;

[0042] The smoothing agent comprises, by mass, 20 parts of 1,2-octenyl carbonate, 15 parts of cyclohexenyl carbonate, 10 parts of 1,2-hexenyl carbonate, and 10 parts of styrene cyclic carbonate;

[0043] The emulsifier includes 7 parts of n-octyl glucoside, 6 parts of isomeric decanol polyoxyethylene ether (E1006), 6 parts of dioleic acid polyoxyethylene ester (400DO), and 6 parts of monolauric acid polyoxyethylene ester (300ML) by mass.

[0044] The antistatic agent includes 3 parts of dodecyl sulfonate, 2 parts of decyl sulfate, and 3.5 parts of octanol polyether phosphate by weight;

[0045] The additives include, by weight, 0.7 parts of 1,2-benzisothiazolin-3-one, 0.3 parts of sodium pyrithione, 0.25 parts of 2,6-di-tert-butyl-p-cresol, and 0.25 parts of butylated hydroxyanisole.

[0046] Embodiment 3:

[0047] A polyester spinning oil containing cyclic carbonate, comprising the following components by weight: 55 parts of a smoothing agent (cyclic carbonate), 25 parts of an emulsifier, 8.5 parts of an antistatic agent, 1.5 parts of an additive, and 10 parts of water;

[0048] The lubricant comprises, by weight, 30 parts of 1,2-octenyl carbonate, 20 parts of cyclohexenyl carbonate, and 5 parts of 1,2-dodecenyl carbonate;

[0049] The emulsifier includes 4 parts of n-octyl glucoside, 7 parts of isomeric decanol polyoxyethylene ether (E1006), 8 parts of dioleic acid polyoxyethylene ester (400DO), and 6 parts of monolauric acid polyoxyethylene ester (300ML) by mass.

[0050] The antistatic agent comprises, by weight, 4 parts of dodecyl sulfonate, 1.5 parts of decyl sulfate, and 3 parts of octanol polyether phosphate;

[0051] The additives include, by weight, 0.7 parts of 1,2-benzisothiazolin-3-one, 0.3 parts of sodium pyrithione, 0.25 parts of 2,6-di-tert-butyl-p-cresol, and 0.25 parts of butylated hydroxyanisole.

[0052] Embodiment 4:

[0053] A polyester spinning oil containing cyclic carbonate, comprising the following components by weight: 55 parts of a smoothing agent (cyclic carbonate), 25 parts of an emulsifier, 8.5 parts of an antistatic agent, 1.5 parts of an additive, and 10 parts of water;

[0054] The smoothing agent comprises 30 parts of 1,2-octenyl carbonate and 25 parts of cyclohexenyl carbonate by weight;

[0055] The emulsifier includes 4 parts of n-octyl glucoside, 7 parts of isomeric decanol polyoxyethylene ether (E1006), 8 parts of dioleic acid polyoxyethylene ester (400DO), and 6 parts of monolauric acid polyoxyethylene ester (300ML) by mass.

[0056] The antistatic agent comprises, by weight, 4 parts of dodecyl sulfonate, 1.5 parts of decyl sulfate, and 3 parts of octanol polyether phosphate;

[0057] The additives include, by weight, 0.7 parts of 1,2-benzisothiazolin-3-one, 0.3 parts of sodium pyrithione, 0.25 parts of 2,6-di-tert-butyl-p-cresol, and 0.25 parts of butylated hydroxyanisole.

[0058] Embodiment 5:

[0059] A polyester spinning oil containing cyclic carbonate, comprising the following components by weight: 60 parts of a smoothing agent (cyclic carbonate), 25 parts of an emulsifier, 3.5 parts of an antistatic agent, 1.5 parts of an additive, and 10 parts of water;

[0060] The smoothing agent includes 35 parts of 1,2-octenyl carbonate and 25 parts of cyclohexenyl carbonate by weight;

[0061] The emulsifier includes 4 parts of n-octyl glucoside, 7 parts of isomeric decanol polyoxyethylene ether (E1006), 8 parts of dioleic acid polyoxyethylene ester (400DO), and 6 parts of monolauric acid polyoxyethylene ester (300ML) by mass.

[0062] The antistatic agent includes 2 parts of dodecyl sulfonate and 1.5 parts of decyl sulfate by weight;

[0063] The additives include, by weight, 0.7 parts of 1,2-benzisothiazolin-3-one, 0.3 parts of sodium pyrithione, 0.25 parts of 2,6-di-tert-butyl-p-cresol, and 0.25 parts of butylated hydroxyanisole.

[0064] Embodiment 6:

[0065] A polyester spinning oil containing cyclic carbonate, comprising the following components by weight: 55 parts of a smoothing agent (cyclic carbonate), 23.5 parts of an emulsifier, 10 parts of an antistatic agent, 1.5 parts of an additive, and 10 parts of water;

[0066] The smoothing agent comprises 30 parts of 1,2-octenyl carbonate and 25 parts of cyclohexenyl carbonate by mass;

[0067] The emulsifier includes 4 parts of n-octyl glucoside, 6.5 parts of isomeric decanol polyoxyethylene ether (E1006), 7.5 parts of dioleic acid polyoxyethylene ester (400DO), and 5.5 parts of monolauric acid polyoxyethylene ester (300ML) by weight;

[0068] The antistatic agent comprises, by weight, 4 parts of dodecyl sulfonate, 1.5 parts of decyl sulfate, 2 parts of octanol polyether phosphate, and 2.5 parts of tetradecyl sulfonate;

[0069] The additives include, by weight, 0.7 parts of 1,2-benzisothiazolin-3-one, 0.3 parts of sodium pyrithione, 0.25 parts of 2,6-di-tert-butyl-p-cresol, and 0.25 parts of butylated hydroxyanisole.

[0070] Example 7

[0071] A polyester spinning oil containing cyclic carbonate, comprising the following components by weight: 55 parts of a smoothing agent (cyclic carbonate), 25 parts of an emulsifier, 8.5 parts of an antistatic agent, 1.5 parts of an additive, and 10 parts of water;

[0072] The smoothing agent comprises 30 parts of 1,2-octenyl carbonate and 25 parts of cyclohexenyl carbonate by weight;

[0073] The emulsifier includes 4 parts of n-octyl glucoside, 7 parts of isomeric decanol polyoxyethylene ether (E1006), 8 parts of dioleic acid polyoxyethylene ester (400DO), and 6 parts of monolauric acid polyoxyethylene ester (300ML) by mass.

[0074] The antistatic agent comprises, by weight, 1 part of dodecyl sulfonate, 2.5 parts of decyl sulfate, 3 parts of octanol polyether phosphate, and 2 parts of tetradecyl sulfonate;

[0075] The additives include, by weight, 0.7 parts of 1,2-benzisothiazolin-3-one, 0.3 parts of sodium pyrithione, 0.25 parts of 2,6-di-tert-butyl-p-cresol, and 0.25 parts of butylated hydroxyanisole.

[0076] Example 8

[0077] A polyester spinning oil containing cyclic carbonate, comprising the following components by weight: 55 parts of a smoothing agent (cyclic carbonate), 25 parts of an emulsifier, 8.5 parts of an antistatic agent, 1.5 parts of an additive, and 10 parts of water;

[0078] The smoothing agent comprises 30 parts of 1,2-octenyl carbonate and 25 parts of cyclohexenyl carbonate by weight;

[0079] The emulsifier includes 4 parts of n-octyl glucoside, 5 parts of isomeric decanol polyoxyethylene ether (E1006), 8 parts of Span 80, and 8 parts of Tween 85 by weight;

[0080] The antistatic agent includes 3 parts of dodecyl sulfonate, 2 parts of decyl sulfate, and 3.5 parts of octanol polyether phosphate by weight;

[0081] The additives include, by weight, 0.7 parts of 1,2-benzisothiazolin-3-one, 0.3 parts of sodium pyrithione, 0.25 parts of 2,6-di-tert-butyl-p-cresol, and 0.25 parts of butylated hydroxyanisole.

[0082] Example 9

[0083] A polyester spinning oil containing cyclic carbonate, comprising the following components by weight: 60 parts of a smoothing agent (cyclic carbonate), 21 parts of an emulsifier, 7.5 parts of an antistatic agent, 1.5 parts of an additive, and 10 parts of water;

[0084] The smoothing agent comprises, by weight, 30 parts of 1,2-octenyl carbonate, 25 parts of cyclohexenyl carbonate, and 5 parts of styrene cyclic carbonate;

[0085] The emulsifier includes 6 parts of polyoxyethylene dioleate (400DO), 5 parts of polyoxyethylene monolaurate (300ML), 5 parts of Span 80, and 5 parts of Tween 85 by weight;

[0086] The antistatic agent includes 3 parts of dodecyl sulfonate, 2 parts of decyl sulfate, and 2.5 parts of octanol polyether phosphate by weight;

[0087] The additives include, by weight, 0.7 parts of 1,2-benzisothiazolin-3-one, 0.3 parts of sodium pyrithione, 0.25 parts of 2,6-di-tert-butyl-p-cresol, and 0.25 parts of butylated hydroxyanisole.

[0088] Test example

[0089] The spinning oil components of Examples 1 to 9 are prepared into polyester spinning oil, and the preparation steps are as follows:

[0090] Dissolve the antistatic agent, preheat the stirrer to 40°C, add the emulsifier, antistatic agent, smoothing agent, deionized water, preservative and antioxidant into the stirrer in proportion, stir for 30-40 minutes, stir evenly, filter the solution through a 400-mesh filter after it becomes clear, and obtain the polyester spinning oil;

[0091] The physical properties of the polyester spinning oils prepared in Examples 1 to 9 were tested. The test indicators included: appearance, emulsion stability (15% aq for 72 h), effective content, pH (1% aq), density (20°C, g / cm 3 ), rotational viscosity (40℃, mPa•S), oil film strength, surface tension (1% aqueous solution, 20℃, mN / m), conductivity (us / cm); the test results are shown in Table 1;

[0092] Table 1 Test results of physical properties of polyester spinning oil

[0093]

[0094] As shown in Table 1, the spinning oils prepared in Examples 1 to 9 are light yellow transparent oily liquids with good appearance and no insoluble impurities. The 15% emulsions of the spinning oils prepared in Examples 1 to 7 do not show stratification after being placed for 72 hours, and have stability that meets production requirements. Meanwhile, the oil film strength and electrical conductivity of the spinning oils prepared in Examples 1 to 7 can also meet the basic requirements for production use. Therefore, the spinning oils prepared in Examples 1 to 7 can be used as polyester spinning oils that meet production requirements.

[0095] The spinning oils prepared in Examples 1 to 7 and Comparative Example 1 (commercially available spinning oil Takemoto Oil F1619) were used to test-spin 65dtex / 24f semi-dull yarns, and the physical properties of the spun 65dtex / 24f semi-dull yarns were tested. The test indicators included: linear density dtex, linear density CV value, breaking strength cN / dtex, breaking strength CV value, breaking elongation, breaking elongation CV value, oil content, boiling water shrinkage, yarn unevenness U value, and dyeing uniformity. The test results are shown in Table 2.

[0096] Table 2 Physical properties of treated 65dtex / 24f semi-dull yarn

[0097]

[0098] As shown in Table 2, when the spinning oil prepared in Examples 1 to 7 was used to treat the 65dtex / 24f semi-dull yarn, the spinning state was good, and the oil smoke and odor produced were not significantly different from those of the commercially available F1619 oil. The breaking strength results showed that Examples 2 to 4 were all higher than Comparative Example 1; the breaking elongation results showed that Examples 1 to 5 were all higher than Comparative Example 1, and Examples 3 to 5 were significantly higher than Comparative Example 1; the dyeing uniformity results showed that the dyeing uniformity of Examples 1 to 4 and Example 6 was good, and there was no significant difference from Comparative Example 1;

[0099] Based on the above test results, it can be concluded that compared with commercially available spinning oils, the polyester spinning oil containing cyclic carbonate provided in the present application can significantly improve the breaking strength and breaking elongation of the silk in the spinning process, can significantly improve the smoothness, permeability and stability of the silk oil, can significantly improve the spinnability of the oil, and significantly reduce the occurrence of abnormal problems such as hairy silk and broken ends in the spinning process.

[0100] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent transformation made to the above embodiment based on the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A polyester spinning oil containing cyclic carbonate, characterized in that: The components include the following by mass: 40-60 parts of smoothing agent, 15-30 parts of emulsifier, 5-10 parts of antistatic agent, 1-2 parts of additive, and 8-12 parts of water; The smoothing agent consists of 1,2-octenyl carbonate, cyclohexenyl carbonate, 1,2-hexenyl carbonate and styrene cyclic carbonate.

2. A polyester spinning oil containing cyclic carbonate as claimed in claim 1, characterized in that: The emulsifier includes one or more of alkyl glycoside, isomeric fatty alcohol polyoxyethylene ether, fatty acid polyoxyethylene ester, emulsifier Span and emulsifier Tween.

3. A polyester spinning oil containing cyclic carbonate as claimed in claim 2, characterized in that: The alkyl glucoside includes one or more of n-octyl glucoside, decyl glucoside, lauryl glucoside and tetradecyl glucoside.

4. A polyester spinning oil containing cyclic carbonate as claimed in claim 2, characterized in that: The isomeric fatty alcohol structure of the isomeric fatty alcohol polyoxyethylene ether includes one or more of C8-C15 branched isomeric alcohols.

5. A polyester spinning oil containing cyclic carbonate as claimed in claim 2, characterized in that: The ester structure of the fatty acid polyoxyethylene ester includes monoester and / or diester, and the fatty acid structure of the fatty acid polyoxyethylene ester includes one or more of oleic acid, stearic acid and lauric acid.

6. A polyester spinning oil containing cyclic carbonate as claimed in claim 1, characterized in that: The antistatic agent includes one or more of C8-C15 alkyl sulfonates, C10-C16 alkyl sulfates and C4-C10 alkyl polyether phosphate salts.

7. The polyester spinning oil containing cyclic carbonate as claimed in claim 1, characterized in that: The additives include preservatives and antioxidants.

8. A polyester spinning oil containing cyclic carbonate as claimed in claim 7, characterized in that: The preservative includes one or more of 1,2-benzisothiazolin-3-one, sodium pyrithione and potassium sorbate.

9. A polyester spinning oil containing cyclic carbonate as claimed in claim 7, characterized in that: The antioxidant includes one or more of 2,6-di-tert-butyl-p-cresol, butylated hydroxyanisole and tert-butylhydroquinone.

10. A method for preparing a polyester spinning oil containing cyclic carbonate according to any one of claims 1 to 9, characterized in that: The method comprises the following preparation steps: adding emulsifier, antistatic agent, lubricant, water, preservative and antioxidant into a stirrer in proportion, wherein the water is deionized water, stirring evenly and filtering to obtain polyester spinning oil containing cyclic carbonate.

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