Spinning oil composition, spinning oil as well as preparation method and application of spinning oil

Abstract

The invention relates to the technical field of high polymer material preparation, in particular to a spinning oil composition, spinning oil as well as a preparation method and application of the spinning oil. The composition comprises the following components in parts by weight: 20-30 parts of polyoxyethylene fatty acid ester; 8 to 10 parts of hydrogenated castor oil polyoxyethylene ether; 25 to 35 parts of alkyl silicone oil; 8 to 15 parts of polyether silicone oil; 5 to 8 parts of alkyl polyoxyethylene ether phosphate salt; 7 to 10 parts of alkyl thiosuccinate; 7 to 10 parts of dodecyl phosphate salt; 3 to 6 parts of an ethylene oxide-propylene oxide block copolymer; 5-8 parts of polyoxyethylene quaternary ammonium salt; and 2-4 parts of a penetrant. The spinning oil provided by the invention can significantly improve the bundling property, antistatic property and emulsibility of polyethylene fiber spinning, thereby effectively solving a series of problems in the spinning process of polyethylene fibers, including poor bundling property, large electrostatic voltage, easy winding of rollers and the like.

Description

Technical Field

[0001] The invention relates to the technical field of polymer material preparation, and in particular to a spinning oil composition, a spinning oil, and a preparation method and application thereof. Background Art

[0002] Ultra-high molecular weight polyethylene fiber (UHMWPE) fiber has become the leader of the new generation of high-strength and high-modulus fiber since it emerged in the early 1980s. People praise it as the third generation of high-strength and high-modulus fiber after carbon fiber and aramid. Its light weight, high strength and high modulus characteristics attract people's attention. In addition, this fiber has also won the favor of the public with its excellent performance such as resistance to low temperature, wear resistance, resistance to ultraviolet radiation, low friction coefficient, impact resistance, cutting resistance, low dielectric constant, high specific energy absorption, and high electromagnetic wave transmittance.

[0003] However, despite the many excellent properties of UHMWPE fiber, the high specific resistance of UHMWPE fiber makes it easy to generate static electricity during the spinning process, which has always been a major problem in the spinning process of high-performance polyethylene fiber. Excessive static electricity can easily cause the fiber surface hairiness to increase during the processing process, and even entangle the leather rollers and rollers in the drawing stage, resulting in drawing breakage and tube blockage. In addition, the roving stage is also prone to entanglement with the leather rollers, which increases the hairiness on the roving surface. These conditions will make it difficult to spin high-performance UHMWPE fibers continuously.

[0004] In the existing technology, polyethylene fibers need to be sprayed with oil and left to stand before spinning, but this is not conducive to continuous industrial production. In addition, ordinary high-speed spinning oils cannot meet the process requirements of ultrafine fibers, and a series of problems such as filament dispersion, lint, and broken ends will occur, which seriously affect the spinnability and product grade rate. Therefore, oil has become a major obstacle to the industrial production of UHMWPE high-speed spinning. Uniform oiling is a prerequisite for the stable performance of the various functions of the oil. Whether the oil can be evenly attached to the surface of each fiber directly affects the friction behavior between the filament and the contact parts. If the oiling is uneven or too little, it will cause fluctuations in spinning tension and even cause lint and broken ends. Especially for ultrafine UHMWPE fibers, due to their large specific surface area, large number of fibers and low strength, uniform oiling is particularly important. Uniform oiling is closely related to the wetting properties and surface tension of the oil. Generally, the faster the wetting speed and the lower the surface tension, the more uniform the oiling. The wetting properties of the oil are mainly determined by the structure of the polyether monomer used. The type of the polyether terminal starting group and the ether chain structure also have a significant impact on its wetting ability.

[0005] UHMWPE high-speed spinning fiber is easily damaged during processing due to its thinness, high processing speed and multiple processes. Considering the uniform oiling, the influence of oil on fiber structure and mechanical properties and friction disc, as well as biodegradability and oil film strength, the oil formula was carefully designed based on the relationship between oil structure and performance, and a stable oil formula was developed through small and medium tests. This innovation not only solves the spinnability problem of UHMWPE high-speed spinning and improves the first-class rate of fiber, but also conducts in-depth research on the basic problems in the development and production of domestic chemical fiber oils, which has positive significance for improving the research level of chemical fiber oils in my country. With the development of spinning technology from low speed to high speed, the increase in spinning speed has increasingly stringent requirements on oils. In order to meet this demand, it is particularly important to develop high-quality spinning oils that match the high-speed spinning process. According to the special requirements of the high-speed spinning process for oils, the problems of bundling, antistatic and friction characteristics are mainly solved, and an oil designed specifically for high-speed spinning of UHMWPE fibers is developed. This oil agent makes the first-class silk quality rate as high as 97%, significantly improving the fiber quality and production efficiency.

[0006] CN114232139A discloses a carbon fiber oil for dry-jet wet spinning precursor and its preparation method. The oil is mainly composed of amino-modified silicone oil, epoxy-modified silicone oil, polyether-modified silicone oil, ternary copolymer silicone oil, composite emulsifier and deionized water. It is a water-in-oil type aqueous microemulsion with a particle size of 50-500nm, which can better match the dry-jet wet spinning process, evenly oil the precursor in a short time, and is not easy to stick to the roller in the stages of drying densification and steam drawing, and the winding is not deformed, the amount of hair is small, and it has good spinning processability; it does not stick in the pre-oxidation and low-temperature carbonization stages, the amount of hair is small, the carbonization strength is high, and the discrete coefficient is small. The method has the characteristics of green environmental protection, good safety, high production efficiency, stable quality, etc., and is suitable for large quantities of polyacrylonitrile dry-jet wet spinning process, but it has not yet been industrialized and promoted.

[0007] CN115928443A discloses a carbon fiber oil, which contains quaternary ammonium modified silicone oil, amino modified silicone oil, epoxy modified silicone oil, emulsifier, organic solvent, auxiliary agent, and deionized water; the mass fractions of each component of the oil are expressed as follows: 3-14 parts of quaternary ammonium modified silicone oil, 5-33 parts of amino modified silicone oil, 3-14 parts of epoxy modified silicone oil, 5-15 parts of emulsifier + organic solvent, 1-5 parts of auxiliary agent, and 60-70 parts of deionized water; wherein, the quaternary ammonium modified silicone oil includes one or more of hydroxyl, polyether modified quaternary ammonium silicone oil, alkoxy modified quaternary ammonium silicone oil and aminoethyl aminopropyl modified quaternary ammonium silicone oil. The carbon fiber produced by coating the oil of the present application has the advantages of high tensile strength at break, low impurity content, good fiber separation, and less hairiness during production and use, but it is currently only applicable to carbon fiber.

[0008] CN116103790A discloses a heat-resistant, highly compatible carbon fiber precursor oil and a preparation method thereof. It comprises modified siloxane, an emulsifier, a nonionic antistatic agent, an antioxidant and deionized water; the modified siloxane is prepared by modifying polyvinyl polysiloxane with thioglycolic acid ethanolamine. The modified siloxane is grafted with carboxyl, amino and hydroxyl groups through the addition reaction of mercapto and double bonds, has strong heat resistance, and has high compatibility due to the reduced silicon content. The carbon fiber precursor oil prepared with the modified siloxane has heat resistance, greatly reduces broken wires and wool in the pre-oxidation process, and has high compatibility, can enhance the adhesion ability and uniformity of adhesion to polyacrylonitrile fibers, and obtains carbon fibers with higher linear density and bundle strength, but is currently only applicable to carbon fibers.

[0009] CN114214841A discloses a heat-resistant antistatic carbon fiber oil and its preparation and application, aiming to solve the technical problems of poor antistatic effect of existing carbon fiber oil, poor fiber protection effect at high temperature, and large amount of fiber lint. Based on substance A with ester and ether functional groups, surfactant, ether silicone oil, emulsifying aid, etc., a heat-resistant antistatic carbon fiber oil is prepared, which has high heat resistance, lubricity and water solubility. The compound is liquid below 300°C and a flexible film at 350°C. It can protect the carbon fiber well during the pre-oxidation stage and low-temperature carbonization of the carbon fiber, solving the technical problems of easy glue formation, sticky rollers, high lint and difficulty in taking into account the antistatic performance of existing carbon fiber oil products, but it is not suitable for UHMWPE fibers.

[0010] CN115992402A discloses a wear-resistant vinylon fiber oil and a preparation method thereof. A wear-resistant vinylon fiber oil, in parts by weight, its effective ingredients include 7-12 parts of fatty alcohol polyoxyethylene ether, 11-13 parts of polyethylene glycol 400 monostearate, 5-7 parts of xylitol fatty acid ester, 5-10 parts of L-44 polyether, 5-10 parts of castor oil polyoxyethylene ether and 18-23 parts of isotridecanol phosphate. The oil of this scheme solves the technical problem that the performance of wear-resistant vinylon fiber does not meet the application requirements due to the lack of special oil, can be applied to the practical operation of the processing and production of wear-resistant vinylon fiber, can eliminate the influence of static electricity, and ensure the smooth process of spinning production using wear-resistant vinylon fiber. But it is currently only applicable to vinylon fiber. Summary of the invention

[0011] The purpose of the present invention is to overcome the inherent characteristics of polyethylene fibers in the prior art, such as large internal stress, large resistance, poor bundle bundling, large elasticity, large static electricity during processing, and easy sticking to rollers, and to provide a spinning oil composition, a spinning oil, and a preparation method and application thereof. The spinning oil described in the present application is used for spinning ultra-high molecular weight polyethylene fibers, and has a better spinning process control effect and fiber product performance, so as to improve the performance of subsequent fiber products.

[0012] In order to achieve the above object, the first aspect of the present invention provides a spinning oil composition, which comprises, in parts by weight:

[0013] Polyoxyethylene fatty acid ester: 20-30 parts;

[0014] Hydrogenated castor oil polyoxyethylene ether: 8-10 parts;

[0015] Alkyl silicone oil: 25-35 parts;

[0016] Polyether silicone oil: 8-15 parts;

[0017] Alkyl polyoxyethylene ether phosphate salt: 5-8 parts;

[0018] Alkyl thiosuccinate: 7-10 parts;

[0019] Dodecyl phosphate: 7-10 parts;

[0020] Ethylene oxide-propylene oxide block copolymer: 3-6 parts;

[0021] Polyoxyethylene quaternary ammonium salt: 5-8 parts;

[0022] Penetrant: 2-4 parts.

[0023] The second aspect of the present invention provides a method for preparing a spinning oil, the method comprising: mixing the components of the aforementioned composition.

[0024] The third aspect of the present invention provides a spinning oil prepared by the preparation method of the present invention.

[0025] A fourth aspect of the present invention provides a use of the spinning oil of the present invention in the spinning of polyethylene fibers.

[0026] The spinning oil of the present invention can significantly improve the bundling, antistatic and emulsification properties of polyethylene fiber spinning, thereby effectively solving a series of problems of polyethylene fiber in the spinning process, including poor bundling, high static voltage and easy winding around rollers.

[0027] The spinning oil of the present invention has been verified by use in a 30-ton / year ultra-high molecular weight polyethylene spinning production line, and the results show that the ultra-high molecular weight polyethylene fiber using the spinning oil has good bundling, stretching and forming, bright luster of the filament bundle, small odor of the oil, no oil impurity deposition and masterbatch pigment precipitation on the post-spinning equipment, and the product quality can meet the use requirements.

[0028] The successful application of this technology not only provides a strong guarantee for the production of ultra-high molecular weight polyethylene fibers, but also fills the gap in the market.

[0029] The remarkable effects of the present invention are:

[0030] First, the spinning and spinning performance and antistatic properties of ultra-high molecular weight polyethylene fibers are improved, the disturbance in the spinning process is reduced, and the tensile properties of the fibers are ensured:

[0031] Second, the pre-stretched fiber is fully wetted on the surface to improve its bundling and antistatic properties, reduce friction with metal and other contact objects, reduce lint, and reduce (heat) winding.

[0032] Third, improve the flexibility of ultra-high molecular weight fiber fabrics to facilitate the processing and molding of subsequent products. DETAILED DESCRIPTION

[0033] The endpoints and any values ​​of the ranges disclosed in this article are not limited to the precise ranges or values, and these ranges or values ​​should be understood to include values ​​close to these ranges or values. For numerical ranges, the endpoint values ​​of each range, the endpoint values ​​of each range and the individual point values, and the individual point values ​​can be combined with each other to obtain one or more new numerical ranges, which should be considered as specifically disclosed in this article.

[0034] It should be noted that, in the present invention, the specific meanings of each term are as follows.

[0035] Polyoxyethylene fatty acid ester: The polyoxyethylene fatty acid ester is a polymer widely available in the market.

[0036] Hydrogenated castor oil polyoxyethylene ether: The hydrogenated castor oil polyoxyethylene ether is a polymer widely available in the market, a yellow viscous liquid, resistant to hard water, acid, alkali and inorganic salts, and used for emulsifying and dissolving oil and other water-insoluble substances.

[0037] Alkyl silicone oil: The alkyl silicone oil is a compound widely available in the market.

[0038] Polyether silicone oil: The polyether silicone oil is a polymer widely available on the market.

[0039] Alkyl polyoxyethylene ether phosphate salt: The alkyl polyoxyethylene ether phosphate salt is a polymer widely available in the market.

[0040] Alkyl thiosuccinate: The alkyl thiosuccinate is a commercially available anionic surfactant having the characteristics of rapid and uniform penetration, good wettability, emulsification, and foaming properties.

[0041] Ethylene oxide-propylene oxide block copolymer: The ethylene oxide-propylene oxide block copolymer is a nonionic surfactant.

[0042] Polyoxyethylene quaternary ammonium salt: The polyoxyethylene quaternary ammonium salt is a polymer surfactant widely available in the market.

[0043] Penetrant: The penetrant is a compound widely available on the market, using low-foaming penetrant SF, mainly containing fatty alcohol polyoxyalkyl ether, pH value: 5-7 (1% aqueous solution), penetration: ≤70 seconds.

[0044] The first aspect of the present invention provides a spinning oil composition, which comprises, in parts by weight:

[0045] Polyoxyethylene fatty acid ester: 20-30 parts;

[0046] Hydrogenated castor oil polyoxyethylene ether: 8-10 parts;

[0047] Alkyl silicone oil: 25-35 parts;

[0048] Polyether silicone oil: 8-15 parts;

[0049] Alkyl polyoxyethylene ether phosphate salt: 5-8 parts;

[0050] Alkyl thiosuccinate: 7-10 parts;

[0051] Dodecyl phosphate: 7-10 parts;

[0052] Ethylene oxide-propylene oxide block copolymer: 3-6 parts;

[0053] Polyoxyethylene quaternary ammonium salt: 5-8 parts;

[0054] Penetrant: 2-4 parts.

[0055] According to a preferred embodiment of the present invention, the structural formula of polyoxyethylene fatty acid ester is as shown in formula (1),

[0056]

[0057] In formula (1), R 1It is a C1-C20 saturated or unsaturated aliphatic group, and m ranges from 5 to 500.

[0058] According to a preferred embodiment of the present invention, in the hydrogenated castor oil polyoxyethylene ether, the addition number of polyoxyethylene is 5-100.

[0059] According to a preferred embodiment of the present invention, the structural formula of the alkyl polyoxyethylene ether phosphate salt is as shown in formula (2):

[0060]

[0061] R 2 is a C1-C30 saturated or unsaturated aliphatic group, n is in the range of 5-1000, and M is an alkali metal, an amine group or an ammonium group.

[0062] According to a preferred embodiment of the present invention, in the alkyl thiosuccinate, the alkyl group is a C1-20 straight chain or branched chain alkyl group.

[0063] According to a preferred embodiment of the present invention, the lauryl phosphate salt is lauryl phosphate potassium salt and / or lauryl phosphate sodium salt.

[0064] According to a preferred embodiment of the present invention, the molecular weight of the ethylene oxide-propylene oxide block copolymer is 400-8000 g / mol, the molar proportion of ethylene oxide in the ethylene oxide-propylene oxide block copolymer is 10%-50%, and the total degree of polymerization is 10-200.

[0065] According to a preferred embodiment of the present invention, the polyoxyethylene quaternary ammonium salt is an alkylphenol polyoxyethylene quaternary ammonium salt.

[0066] According to a preferred embodiment of the present invention, the structural formula of polyoxyethylene fatty acid ester is as shown in formula (1), R 1 is a C8-C18 saturated or unsaturated aliphatic group, and m ranges from 100 to 400;

[0067] According to a preferred embodiment of the present invention, the viscosity of the alkyl silicone oil at 25° C. is 500-1200 cst, and is preferably a long-chain alkyl silicone oil.

[0068] The second aspect of the present invention provides a method for preparing a spinning oil, the method comprising: mixing the components of the aforementioned composition.

[0069] According to a preferred embodiment of the present invention, the method for preparing the spinning oil comprises:

[0070] S1, first mixing polyoxyethylene fatty acid ester and hydrogenated castor oil polyoxyethylene ether to obtain mixture 1;

[0071] S2, mixing the alkyl silicone oil, the polyether silicone oil and the mixture 1 for a second time to obtain a mixture 2;

[0072] S3, mixing alkyl polyoxyethylene ether phosphate salt, alkyl thiosuccinate, dodecyl phosphate salt and mixture 2 for a third time to obtain mixture 3;

[0073] S4, mixing the polyoxyethylene quaternary ammonium salt, the penetrant and the mixture 3 for the fourth time to obtain a mixture 4;

[0074] S5. Mixing the mixture 4 with the ethylene oxide-propylene oxide copolymer for the fifth time to obtain a spinning oil.

[0075] According to a preferred embodiment of the present invention, the first mixing conditions include: temperature of 20-60°C, mixing time of 5-30min, and rotation speed of 200-1800rpm;

[0076] The second mixing conditions include: temperature of 20-50°C, mixing time of 5-40min, and rotation speed of 200-1800rpm;

[0077] The third mixing conditions include: temperature of 20-80°C, mixing time of 5-60min, and rotation speed of 200-2000rpm;

[0078] The fourth mixing conditions include: temperature of 20-80°C, mixing time of 10-60min, and rotation speed of 200-2000rpm;

[0079] The fifth mixing condition includes: temperature of 20-60° C., mixing time of 20-40 min, and rotation speed of 200-2000 rpm.

[0080] According to a preferred embodiment of the present invention, the method for preparing the spinning oil further comprises:

[0081] The spinning oil is mixed with water to prepare an aqueous emulsion; preferably, the mass content of the spinning oil is 3-15wt% based on the total weight of the aqueous emulsion.

[0082] The third aspect of the present invention provides a spinning oil prepared by the preparation method of the present invention.

[0083] A fourth aspect of the present invention provides a use of the spinning oil of the present invention in the spinning of polyethylene fibers.

[0084] Relative to 100g of the polyethylene fiber, the amount of the spinning oil used is 0.5-3g.

[0085] The use characteristics of the spinning oil of the present invention include: uniform oiling, less splashing, strong adhesion, smooth high-speed spinning production, good spinnability, excellent fiber quality, smooth winding and unwinding. It can meet the process requirements of unwinding, stretching, winding and false twisting in the fiber processing process, the false twisting tension is uniform, the spinning process is stable, the fiber fuzz and broken ends are less, and the first-class product rate is significantly improved.

[0086] The spinning oil of the present invention has a wetting time of 2s for ultra-high molecular weight polyethylene fibers and a surface tension of 2.86×10 N / m. The spinning oil can be evenly applied with excellent wetting performance for ultra-high molecular weight polyethylene fibers.

[0087] According to another aspect of the present application, there is provided a method for preparing the ultra-high molecular weight polyethylene fiber oil as described above, comprising the following steps:

[0088] S1: Add polyoxyethylene fatty acid ester and polyoxyethylene castor oil into a stirrer, and stir at a high speed of 50° C. for 10 minutes at a rotation speed of 1600 rpm to obtain a mixture 1;

[0089] S2: adding alkyl silicone oil and polyether silicone oil to the mixture 1 in step S1, stirring at a rotation speed of 1600 rpm for 10 minutes to obtain a mixture 2;

[0090] S3: adding alkyl polyoxyethylene ether phosphate salt, alkyl thiosuccinate, and lauryl phosphate potassium salt to the mixture 2 in step S2, stirring at 1600 rpm for 10 minutes to obtain a mixture 3, stirring until the mixture 3 system becomes viscous, and then reducing the stirring speed to 800 rpm;

[0091] S4: slowly adding polyoxyethylene quaternary ammonium salt and penetrant (SF) to the mixture 3 described in the above step S3, stirring for 10 minutes, increasing the speed to 1600 rpm, and continuing stirring for 10 minutes to obtain a mixture 4;

[0092] S5: Add ethylene oxide-propylene oxide copolymer to the mixture 4 in step S4, and stir at 1600 rpm for 30 minutes to obtain an ultra-high molecular weight polyethylene fiber oil, which is stored for later use.

[0093] Based on the oil, the oil can be used directly or prepared into a water emulsion. The fiber oil content (winding yarn): 3% ± 0.5%. When prepared into a water emulsion, the emulsion concentration is 15% ± 3%; the water used for preparation is soft water, the hardness of which is less than 1pg / g, and the pH value is 6.5-7.5. According to the emulsion concentration requirements, slowly add the measured components into the soft water, stir for 10-30 minutes and it can be used. The stirring speed is 1500-2000rpm.

[0094] In order to further understand the present invention, preferred embodiments of the present invention are described below in conjunction with examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention, rather than limiting the claims of the present invention.

[0095] In order to more clearly explain the present invention, the following embodiments are given, but the present invention can be implemented in a manner not limited to the scope of the embodiments.

[0096] The spinning oil of the embodiment and the comparative example is used for spraying and impregnation treatment before winding in the pre-spinning stretching stage of the ultra-high molecular weight polyethylene fiber. The specific method is as follows: the prepared spinning oil is added to the sizing tank of the oiling machine, the unsized ultra-high molecular weight polyethylene fiber is immersed in the spinning oil and passes through the sizing tank of the oiling machine at a speed of 0.1m / min-200m / min, the oiling time is 2s-2min, the excess oil of the ultra-high molecular weight polyethylene fiber out of the tank is squeezed dry, and then the oiled carbon fiber is dried at 20℃-180℃ for 0.5-48h.

[0097] The fiber performance testing indicators and methods are as follows:

[0098] Breaking strength: Use Instron 1122 universal material testing machine to stretch the prepared fibers under different conditions. According to the requirements of the test method standard for reinforced materials, the environment is controlled at 23±2℃ and the relative humidity is (50±10)%. The stretching speed is 250mm / min. The clamp is the rope test clamp produced by INSTRON, which can ensure that the sample does not slip during the test. The clamping distance is 500mm. Stretch until the fiber breaks, and the instrument automatically obtains the result. Each reel of silk is tested 10 times on average, and the average value is taken. The software gives the breaking strength result.

[0099] Elongation at break: The test method is the same as above, and the result is given by the software;

[0100] Modulus: The detection method is the same as above, and the result is given by the software;

[0101] Elongation variation coefficient: The test method is the same as above, and the result is given by the software;

[0102] Strong coefficient of variation: The detection method is the same as above, and the results are given by the software.

[0103] In the following embodiments, the preparation method of the spinning oil comprises:

[0104] S1, adding polyoxyethylene fatty acid ester and hydrogenated castor oil polyoxyethylene ether into a stirrer, stirring at a high speed at a constant temperature of 50° C. for 10 minutes at a rotation speed of 1600 rpm, to obtain a mixture 1;

[0105] S2, adding alkyl silicone oil and polyether silicone oil to the mixture 1 in step S1, stirring at a rotation speed of 1600 rpm for 10 minutes to obtain a mixture 2;

[0106] S3, adding alkyl polyoxyethylene ether phosphate salt, alkyl thiosuccinate, and dodecyl phosphate potassium salt to the mixture 2 in step S2, stirring at 1600 rpm for 10 minutes to obtain a mixture 3, stirring until the mixture 3 system becomes viscous, and then reducing the stirring speed to 800 rpm;

[0107] S4, slowly adding polyoxyethylene quaternary ammonium salt and penetrant (SF) to the mixture 3 described in the above step S3, stirring for 10 minutes, increasing the speed to 1600 rpm, and continuing stirring for 10 minutes to obtain a mixture 4;

[0108] S5. Add ethylene oxide-propylene oxide copolymer to the mixture 4 described in step S4, and stir at a rotation speed of 1600 rpm for 30 minutes to obtain a spinning oil.

[0109] In the following embodiments,

[0110] Polyoxyethylene fatty acid esters were purchased from Rowan Reagent Company, brand R001149.

[0111] Hydrogenated castor oil polyoxyethylene ether was purchased from Shanghai MacLean Biochemical Technology Co., Ltd., brand number E873767.

[0112] Alkyl silicone oil was purchased from Shanghai MacLean Biochemical Technology Co., Ltd., brand number L875454.

[0113] Polyether silicone oil was purchased from Guangdong Wengjiang Chemical Reagent Co., Ltd., brand PB91284.

[0114] Alkyl polyoxyethylene ether phosphate salt was purchased from Haian Petrochemical Plant in Jiangsu Province, and the brand is phosphate ester E1310PK.

[0115] Alkyl sulfosuccinate was purchased from Hai'an Petrochemical Plant in Jiangsu Province with the brand name Kuai T, also known as sodium dioctyl sulfosuccinate or sodium dioctyl sulfosuccinate.

[0116] Dodecyl phosphate was purchased from Guangdong Wengjiang Chemical Reagent Co., Ltd., brand PB10662.

[0117] The ethylene oxide-propylene oxide block copolymer was purchased from Merrill Reagent Company with the brand name GEL-DBP-534.

[0118] Polyoxyethylene quaternary ammonium salt was purchased from West Asia Reagents with the brand name A16677.

[0119] The penetrant was purchased from Haian Petrochemical Plant in Jiangsu Province, and the brand is low-foam penetrant SF.

[0120] Example 1

[0121] Polyoxyethylene fatty acid ester: 25 parts;

[0122] Hydrogenated castor oil polyoxyethylene ether: 9 parts;

[0123] Alkyl silicone oil: 30 parts;

[0124] Polyether silicone oil: 10 parts;

[0125] Alkyl polyoxyethylene ether phosphate salt: 7 parts;

[0126] Alkyl thiosuccinate: 9 parts;

[0127] Potassium lauryl phosphate: 9 parts;

[0128] Ethylene oxide-propylene oxide block copolymer: 5 parts;

[0129] Polyoxyethylene quaternary ammonium salt: 7 parts;

[0130] Penetrant (SF): 3 parts;

[0131] The fiber performance test results are shown in Table 1.

[0132] Table 1

[0133]

[0134] Example 2

[0135] The ultra-high molecular weight polyethylene fiber is subjected to oil spraying and impregnation treatment before winding in the pre-spinning and stretching stage.

[0136] Polyoxyethylene fatty acid ester: 24 parts;

[0137] Hydrogenated castor oil polyoxyethylene ether: 10 parts;

[0138] Alkyl silicone oil: 25 parts;

[0139] Polyether silicone oil: 15 parts;

[0140] Alkyl polyoxyethylene ether phosphate salt: 8 parts;

[0141] Alkyl thiosuccinate: 10 parts;

[0142] Potassium lauryl phosphate: 7 parts;

[0143] Ethylene oxide-propylene oxide block copolymer: 6 parts; Polyoxyethylene quaternary ammonium salt: 5 parts;

[0144] Penetrant (SF): 4 parts.

[0145] The fiber performance test results are shown in Table 2.

[0146] Table 2

[0147]

[0148] Example 3

[0149] Polyoxyethylene fatty acid ester: 30 parts;

[0150] Hydrogenated castor oil polyoxyethylene ether: 8 parts;

[0151] Alkyl silicone oil: 35 parts;

[0152] Polyether silicone oil: 8 parts;

[0153] Alkyl polyoxyethylene ether phosphate salt: 5 parts;

[0154] Alkyl thiosuccinate: 7 parts;

[0155] Potassium lauryl phosphate: 10 parts;

[0156] Ethylene oxide-propylene oxide block copolymer: 3 parts; Polyoxyethylene quaternary ammonium salt: 8 parts;

[0157] Penetrant (SF): 2 parts;

[0158] The fiber performance test results are shown in Table 3.

[0159] Table 3

[0160]

[0161]

[0162] Comparative Example 1

[0163] In the pre-spinning and stretching stage of the ultra-high molecular weight polyethylene fiber, no oil spraying and impregnation treatment is performed before winding.

[0164] The fiber performance test results are shown in Table 4.

[0165] Table 4

[0166]

[0167] It can be clearly seen from the above examples and comparative examples that the performance indicators of the ultra-high molecular weight polyethylene fiber produced by the method have reached the advanced level of other ultra-high molecular weight polyethylene fiber materials.

[0168] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, including the combination of various technical features in any other suitable manner, and these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

Claims

1. A spinning oil composition, characterized in that In parts by weight, the composition comprises: Polyoxyethylene fatty acid ester: 20-30 parts; Hydrogenated castor oil polyoxyethylene ether: 8-10 parts; Alkyl silicone oil: 25-35 parts; Polyether silicone oil: 8-15 parts; Alkyl polyoxyethylene ether phosphate salt: 5-8 parts; Alkyl thiosuccinate: 7-10 parts; Dodecyl phosphate: 7-10 parts; Ethylene oxide-propylene oxide block copolymer: 3-6 parts; Polyoxyethylene quaternary ammonium salt: 5-8 parts; Penetrant: 2-4 parts.

2. The spinning oil composition according to claim 1, wherein The structural formula of polyoxyethylene fatty acid ester is shown in formula (1), In formula (1), R1 is a C1-C20 saturated or unsaturated fatty group, and m is in the range of 5-500; and / or In the hydrogenated castor oil polyoxyethylene ether, the addition number of polyoxyethylene is 5-100; and / or The structural formula of alkyl polyoxyethylene ether phosphate salt is shown in formula (2). R2 is a C1-C30 saturated or unsaturated fatty group, n is in the range of 5-1000, and M is an alkali metal, an amine group or an ammonium group; and / or In the alkyl thiosuccinate, the alkyl group is a C1-20 straight chain or branched chain alkyl group; and / or The lauryl phosphate salt is lauryl phosphate potassium salt and / or lauryl phosphate sodium salt; and / or The molecular weight of the ethylene oxide-propylene oxide block copolymer is 400-8000 g / mol, the molar proportion of ethylene oxide in the ethylene oxide-propylene oxide block copolymer is 10%-50%, and the total degree of polymerization is 10-200; and / or The polyoxyethylene quaternary ammonium salt is an alkylphenol polyoxyethylene quaternary ammonium salt.

3. The spinning oil composition according to claim 2, wherein The structural formula of the polyoxyethylene fatty acid ester is shown in formula (1), R1 is a saturated or unsaturated fatty group of C8-C18, and m is in the range of 100-400; and / or The viscosity of the alkyl silicone oil at 25° C. is 500-1200 cst, and is preferably a long-chain alkyl silicone oil.

4. A method for preparing a spinning oil, characterized in that: The method comprises: mixing the components of the composition according to any one of claims 1 to 3.

5. The preparation method according to claim 4, wherein The preparation method of the spinning oil comprises: S1, first mixing polyoxyethylene fatty acid ester and hydrogenated castor oil polyoxyethylene ether to obtain mixture 1; S2, mixing the alkyl silicone oil, the polyether silicone oil and the mixture 1 for a second time to obtain a mixture 2; S3, mixing alkyl polyoxyethylene ether phosphate salt, alkyl thiosuccinate, dodecyl phosphate salt and mixture 2 for a third time to obtain mixture 3; S4, mixing the polyoxyethylene quaternary ammonium salt, the penetrant and the mixture 3 for the fourth time to obtain a mixture 4; S5. Mixing the mixture 4 with the ethylene oxide-propylene oxide copolymer for the fifth time to obtain a spinning oil.

6. The preparation method according to claim 5, wherein: The first mixing conditions include: temperature of 20-60°C, mixing time of 5-30min, and rotation speed of 200-1800rpm; The second mixing conditions include: temperature of 20-50°C, mixing time of 5-40min, and rotation speed of 200-1800rpm; The third mixing conditions include: temperature of 20-80°C, mixing time of 5-60min, and rotation speed of 200-2000rpm; The fourth mixing conditions include: temperature of 20-80°C, mixing time of 10-60min, and rotation speed of 200-2000rpm; The fifth mixing condition includes: temperature of 20-60° C., mixing time of 20-40 min, and rotation speed of 200-2000 rpm.

7. The preparation method according to claim 5, wherein: The preparation method of the spinning oil further comprises: The spinning oil is mixed with water to prepare an aqueous emulsion; preferably, the mass content of the spinning oil is 3-15wt% based on the total weight of the aqueous emulsion.

8. The spinning oil prepared by the preparation method according to any one of claims 4 to 7.

9. Use of the spinning oil according to claim 8 in the spinning of polyethylene fibers, preferably in the spinning of ultra-high molecular weight polyethylene fibers.

10. The use according to claim 9, wherein: Relative to 100g of the polyethylene fiber, the amount of the spinning oil used is 0.5-3g.

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