Environment-friendly high-temperature-resistant polyester polypropylene fiber spinning oil and preparation method thereof

Abstract

The invention discloses environment-friendly high-temperature-resistant polyester polypropylene fiber spinning oil and a preparation method thereof, and the environment-friendly high-temperature-resistant polyester polypropylene fiber spinning oil comprises the following raw materials in parts by weight: 40-55 parts of mixed modified silicone oil, 4-9 parts of coconut oil, 1-3 parts of an emulsifying dispersant, 2-4 parts of a bundling agent and 0.5-2 parts of a function regulator, the mixed modified silicone oil comprises carboxyl modified silicone oil, phenolic hydroxyl modified silicone oil and amino modified silicone oil, the function regulator comprises an antioxidant, an antibacterial agent and a PH regulator, and the antioxidant is modified oil-soluble tea polyphenol. The oxidation resistance and heat resistance of the spinning oil agent are improved by adding the modified oil-soluble tea polyphenol, and the heat resistance of the spinning oil agent is very good by mixing and compounding the amino modified silicone oil and the phenolic hydroxyl modified silicone oil; the durability can be improved when carboxyl modified silicone oil and amino silicone oil are mixed and compounded for fiber treatment.

Description

Technical Field

[0001] The invention relates to the technical field of spinning oils, in particular to an environmentally friendly, high-temperature-resistant polyester-polypropylene spinning oil and a preparation method thereof. Background Art

[0002] Fiber treatment agents for textiles In the fiber spinning process, the use of spinning oil is indispensable. The spinning oil mainly plays a role in adjusting the cohesion and wettability of the fiber, so that the post-processing procedures such as absorption and bundling, stretching, combing, etc. can be carried out smoothly, and at the same time, it gives the fiber smoothness, softness and antistatic properties;

[0003] In the preparation process of spinning oil in the prior art, the anti-oxidation problem of the oil is rarely considered, which easily causes the polyester polypropylene fiber to turn yellow, thereby affecting the use of the fiber.

[0004] The defects of existing spinning oils are:

[0005] 1. Patent document CN113308765A discloses a spinning oil for polyester staple fibers and a preparation method thereof. However, the spinning oil and the preparation method of the patent document do not consider improving the antioxidant capacity of the oil;

[0006] 2. The heat resistance of traditional spinning oil is poor. The spinning oil on polyester staple fiber is easy to volatilize and decompose, which reduces the smoothness and oil film strength;

[0007] 3. Patent document CN101876147B discloses an antibacterial spinning oil, which uses two fungicides, phenol and its derivatives for cosmetics and quaternary ammonium salt fungicides for cosmetics. The two fungicides are used together to sterilize for 20 minutes with an antibacterial rate of more than 90%. However, the antibacterial agent in the oil is a chemical antibacterial agent, which has certain pollution to the environment and certain irritation to the skin.

[0008] 4. Traditional oils usually contain antistatic monomers containing phosphorus and APEO and other substances. These substances are not easily biodegradable and cause environmental pollution. Summary of the invention

[0009] The purpose of the present invention is to provide an environmentally friendly, high temperature resistant polyester polypropylene spinning oil and a preparation method thereof, so as to solve the problems raised in the above background technology.

[0010] To achieve the above object, the present invention provides the following technical solution: an environmentally friendly high-temperature resistant polyester-polypropylene spinning oil, the environmentally friendly high-temperature resistant polyester-polypropylene spinning oil comprising the following raw materials in parts by weight: 40 to 55 parts of mixed modified silicone oil, 4 to 9 parts of coconut oil, 1 to 3 parts of emulsifying dispersant, 2 to 4 parts of sizing agent, and 0.5 to 2 parts of functional regulator;

[0011] Among them, the mixed modified silicone oil includes carboxyl-modified silicone oil, phenolic hydroxyl-modified silicone oil and amino-modified silicone oil, the functional regulator includes antioxidants, antibacterial agents and pH regulators, the functional regulator also includes one or more of antistatic agents, wetting agents and preservatives, and the antioxidant is modified oil-soluble tea polyphenols.

[0012] Preferably, the mixed modified silicone oil comprises 3 to 4 parts of carboxyl-modified silicone oil, 5 to 8 parts of phenolic hydroxyl-modified silicone oil and 7 to 12 parts of amino-modified silicone oil in parts by weight.

[0013] Preferably, the emulsifying dispersant is fatty alcohol polyoxyethylene ether, and the general chemical formula of fatty alcohol polyoxyethylene ether is RO(CH2CH2)nH, wherein R is a saturated or unsaturated C12-C14 hydrocarbon group, and n=4-6.

[0014] Preferably, the sizing agent is prepared by mixing castor oil polyoxyethylene ether and polyoxyethylene laurate, and the weight ratio of castor oil polyoxyethylene ether to polyoxyethylene laurate is 4:(5-6).

[0015] Preferably, the antistatic agent is graphene.

[0016] Preferably, the modified oil-soluble tea polyphenols are prepared by introducing acyl groups into the phenolic hydroxyl groups of tea polyphenols through an oxyacylation method.

[0017] Preferably, the pH value of the polyester-polypropylene spinning oil is adjusted to 6.0-7.0 by a pH regulator.

[0018] Preferably, a method for preparing an environmentally friendly, high temperature resistant polyester polypropylene spinning oil comprises the following steps:

[0019] Step S1: Weigh the sizing agent and the emulsifying dispersant according to weight, mix them and put them into a reaction kettle, heat and stir them evenly;

[0020] Step S2: adding the mixed modified silicone oil and coconut oil according to weight parts into the reaction kettle and stirring;

[0021] Step S3: Finally, add the functional regulator into the reactor according to the weight portion, stir evenly, cool and filter to obtain the desired oil.

[0022] Preferably, the heating temperature in step S1 is 25° C. to 48° C., the stirring time is 30 min to 75 min, the stirring speed in step S2 is 600 r / min to 900 r / min, and the stirring time is 15 min to 45 min.

[0023] Preferably, in step S3, the stirring speed after adding the functional regulator is 180 r / min to 250 r / min, and the stirring time is 20 min to 45 min.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The spinning oil of the present invention improves the antioxidant and heat resistance of the spinning oil by adding modified oil-soluble tea polyphenols. Tea polyphenols themselves are a natural antioxidant that can inhibit the oxidation reaction under high temperature conditions, thereby enhancing the thermal stability of the oil. By modifying the tea polyphenols, its lipophilicity and antioxidant effects are enhanced, and it can be better dissolved in oil, thereby enhancing its application effect in the oil, so that the oil has stronger antioxidant ability and heat resistance.

[0026] 2. The performance of the spinning oil of the present invention is improved by adding a mixed modified silicone oil. The heat resistance of the oil is very good by mixing and compounding the amino-modified silicone oil and the phenolic hydroxyl-modified silicone oil. The durability can be increased when the carboxyl-modified silicone oil and the amino-silicone oil are mixed and compounded for fiber treatment. At the same time, the phenol group of the phenolic hydroxyl-modified silicone oil has high reactivity and heat resistance, and is not easy to produce oil smoke after heating. Therefore, it can improve the stability of the spinning oil. The oil film strength of the oil is high, which can prevent the problems of fiber filament hair and broken ends in spinning and subsequent processes, and reduce the wear on equipment contact parts.

[0027] 3. The antibacterial ability of the spinning oil of the present invention is improved by adding coconut oil. Coconut oil is a natural vegetable oil composed of medium-chain fatty acids with comprehensive antibacterial ability. Therefore, the addition of coconut oil can improve the antibacterial ability of the oil. Coconut oil can not only play an antibacterial role as an antibacterial agent, but also has a lubricating effect. It works together with the mixed modified silicone oil to greatly reduce the amount of silicone oil used. At the same time, coconut oil also has a strong antioxidant ability, which further improves the antioxidant ability of the oil.

[0028] 4. The raw materials of the present invention are all made of biodegradable materials, which reduces the environment. By adding graphene to the spinning oil, the antistatic ability of the oil is greatly improved, so that the spinning treated with the oil has super antistatic property. Under the synergistic effect of emulsifying dispersant, bundling agent, functional regulator, coconut oil and mixed modified silicone oil, the oil has the characteristics of high temperature resistance and antistatic, and can give polyester polypropylene higher smoothness, bundling and high unwinding rate. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] An environmentally friendly, high-temperature-resistant polyester-polypropylene spinning oil provided in an embodiment of the present invention comprises the following raw materials in parts by weight: 40 to 55 parts of mixed modified silicone oil, 4 to 9 parts of coconut oil, 1 to 3 parts of emulsifying dispersant, 2 to 4 parts of sizing agent, and 0.5 to 2 parts of functional regulator;

[0031] Among them, the mixed modified silicone oil includes carboxyl-modified silicone oil, phenolic hydroxyl-modified silicone oil and amino-modified silicone oil, the functional regulator includes antioxidants, antibacterial agents and pH regulators, the functional regulator also includes one or more of antistatic agents, wetting agents and preservatives, and the antioxidant is modified oil-soluble tea polyphenols.

[0032] The mixed modified silicone oil includes 3 to 4 parts of carboxyl modified silicone oil, 5 to 8 parts of phenolic hydroxyl modified silicone oil and 7 to 12 parts of amino modified silicone oil in parts by weight.

[0033] The emulsifying dispersant is fatty alcohol polyoxyethylene ether, and the chemical formula of fatty alcohol polyoxyethylene ether is RO(CH2CH2)nH, wherein R2 is a saturated or unsaturated C12-C14 hydrocarbon group, and n=4-6;

[0034] The sizing agent is prepared by mixing castor oil polyoxyethylene ether and lauric acid polyoxyethylene ester, and the weight ratio of castor oil polyoxyethylene ether to lauric acid polyoxyethylene ester is 4:(5-6);

[0035] The antistatic agent is graphene; the modified oil-soluble tea polyphenol is prepared by introducing acyl groups into the phenolic hydroxyl groups of the tea polyphenol through an oxyacylation method;

[0036] The pH value of polyester polypropylene spinning oil is adjusted to 6.0-7.0 by pH regulator.

[0037] The present invention provides a method for preparing an environmentally friendly, high temperature resistant polyester polypropylene spinning oil, comprising the following steps:

[0038] Step S1: Weigh the sizing agent and the emulsifying dispersant according to weight, mix them and put them into a reaction kettle, heat and stir them evenly;

[0039] Step S2: adding the mixed modified silicone oil and coconut oil according to weight parts into the reaction kettle and stirring;

[0040] Step S3: Finally, add the functional regulator into the reactor according to the weight portion, stir evenly, cool and filter to obtain the desired oil.

[0041] Wherein, the heating temperature in step S1 is 25°C to 48°C, the stirring time is 30min to 75min, the stirring speed in step S2 is 600r / min to 900r / min, and the stirring time is 15min to 45min;

[0042] In step S3, after adding the functional regulator, the stirring speed is 180 r / min to 250 r / min, and the stirring time is 20 min to 45 min.

[0043] In the present invention, the mixed modified silicone oil has good lubricity and antistatic properties, and can form a uniform lubricating film on the surface of the fabric, reduce the friction between the fibers, and reduce the generation of static electricity;

[0044] In the present invention, modified oil-soluble tea polyphenols are added to improve the antioxidant and heat resistance of the spinning oil. Tea polyphenols itself is a natural antioxidant and is the abbreviation of polyhydroxyphenol compounds in tea. It has strong hydrogen-donating activity and antioxidant capacity and can inhibit the progress of oxidation reactions under high temperature conditions, thereby enhancing the thermal stability of the oil. By modifying the tea polyphenols, its lipophilicity and antioxidant effects are enhanced, and it can be better dissolved in oil, thereby enhancing its application effect in the oil, so that the oil has stronger antioxidant capacity and heat resistance.

[0045] In the present invention, the performance of the spinning oil is improved by adding a mixed modified silicone oil. The heat resistance of the oil is very good by mixing and compounding the amino-modified silicone oil and the phenolic hydroxyl-modified silicone oil. The durability can be increased when the carboxyl-modified silicone oil and the amino-silicone oil are mixed and compounded for fiber treatment. At the same time, the phenol group of the phenolic hydroxyl-modified silicone oil has high reactivity and heat resistance, so the stability of its emulsion is better, thereby improving the stability of the spinning oil.

[0046] The antibacterial ability of the spinning oil of the present invention is improved by adding coconut oil. Coconut oil is a natural vegetable oil composed of medium-chain fatty acids with comprehensive antibacterial ability. Therefore, the addition of coconut oil can improve the antibacterial ability of the oil. Coconut oil can be used as an antibacterial agent to inhibit bacteria, and coconut oil also has a lubricating effect. It works together with the mixed modified silicone oil to greatly reduce the amount of silicone oil used. At the same time, coconut oil also has strong antioxidant ability, which further improves the antioxidant ability of the oil.

[0047] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0048] Embodiment 1:

[0049] The present embodiment provides an environmentally friendly, high-temperature-resistant polyester-polypropylene spinning oil, which comprises the following raw materials in parts by weight: 50 parts of mixed modified silicone oil, 6 parts of coconut oil, 2 parts of emulsifying dispersant, 3 parts of sizing agent, and 1 part of functional regulator;

[0050] Among them, the mixed modified silicone oil includes carboxyl modified silicone oil, phenolic hydroxyl modified silicone oil and amino modified silicone oil, the functional regulator includes antioxidant, antibacterial agent and pH regulator, the functional regulator also includes antistatic agent and wetting agent, and the antioxidant is modified oil-soluble tea polyphenols.

[0051] The mixed modified silicone oil includes 3 parts of carboxyl modified silicone oil, 5 parts of phenolic hydroxyl modified silicone oil and 7 parts of amino modified silicone oil in parts by weight;

[0052] Wherein, the emulsifying dispersant is fatty alcohol polyoxyethylene ether, and the chemical formula of fatty alcohol polyoxyethylene ether is RO(CH2CH2)nH, wherein R is a saturated C12 hydrocarbon group, and n=4;

[0053] The sizing agent is prepared by mixing castor oil polyoxyethylene ether and lauric acid polyoxyethylene ester, and the weight ratio of castor oil polyoxyethylene ether to lauric acid polyoxyethylene ester is 4:5;

[0054] The antistatic agent is graphene; the modified oil-soluble tea polyphenol is prepared by introducing acyl groups into the phenolic hydroxyl groups of the tea polyphenol through an oxyacylation method;

[0055] The pH value of the polyester polypropylene spinning oil is adjusted to 6.0 by a pH regulator.

[0056] The present invention provides a method for preparing an environmentally friendly, high temperature resistant polyester polypropylene spinning oil, comprising the following steps:

[0057] Step S1: Weigh the sizing agent and the emulsifying dispersant according to weight, mix them and put them into a reaction kettle, heat and stir them evenly;

[0058] Step S2: adding the mixed modified silicone oil and coconut oil according to weight parts into the reaction kettle and stirring;

[0059] Step S3: Finally, add the functional regulator into the reactor according to the weight portion, stir evenly, cool and filter to obtain the desired oil.

[0060] The heating temperature in step S1 is 35°C, the stirring time is 55 min, the stirring speed in step S2 is 700 r / min, and the stirring time is 30 min;

[0061] In step S3, the stirring speed after adding the functional regulator is 250 r / min, and the stirring time is 20 min.

[0062] Embodiment 2:

[0063] The environmentally friendly high temperature resistant polyester polypropylene spinning oil comprises the following raw materials in parts by weight: 55 parts of mixed modified silicone oil, 9 parts of coconut oil, 3 parts of emulsifying dispersant, 4 parts of sizing agent, and 2 parts of functional regulator;

[0064] Among them, the mixed modified silicone oil includes carboxyl modified silicone oil, phenolic hydroxyl modified silicone oil and amino modified silicone oil, the functional regulator includes antioxidant, antibacterial agent and pH regulator, the functional regulator also includes antistatic agent and preservative, and the antioxidant is modified oil-soluble tea polyphenols.

[0065] The mixed modified silicone oil includes 3 parts of carboxyl modified silicone oil, 5 parts of phenolic hydroxyl modified silicone oil and 8 parts of amino modified silicone oil in parts by weight;

[0066] Wherein, the emulsifying dispersant is fatty alcohol polyoxyethylene ether, and the chemical formula of fatty alcohol polyoxyethylene ether is RO(CH2CH2)nH, wherein R is a saturated C12 hydrocarbon group, and n=5;

[0067] The sizing agent is prepared by mixing castor oil polyoxyethylene ether and lauric acid polyoxyethylene ester, and the weight ratio of castor oil polyoxyethylene ether to lauric acid polyoxyethylene ester is 4:5;

[0068] The antistatic agent is graphene; the modified oil-soluble tea polyphenol is prepared by introducing acyl groups into the phenolic hydroxyl groups of the tea polyphenol through an oxyacylation method;

[0069] The pH value of the polyester polypropylene spinning oil is adjusted to 6.5 by a pH regulator.

[0070] The present invention provides a method for preparing an environmentally friendly, high temperature resistant polyester polypropylene spinning oil, comprising the following steps:

[0071] Step S1: Weigh the sizing agent and the emulsifying dispersant according to weight, mix them and put them into a reaction kettle, heat and stir them evenly;

[0072] Step S2: adding the mixed modified silicone oil and coconut oil according to weight parts into the reaction kettle and stirring;

[0073] Step S3: Finally, add the functional regulator into the reactor according to the weight portion, stir evenly, cool and filter to obtain the desired oil.

[0074] The heating temperature in step S1 is 25°C, the stirring time is 75 min, the stirring speed in step S2 is 900 r / min, and the stirring time is 20 min;

[0075] In step S3, the stirring speed after adding the functional regulator is 250 r / min, and the stirring time is 25 min.

[0076] Embodiment three:

[0077] The environmentally friendly high temperature resistant polyester polypropylene spinning oil comprises the following raw materials in parts by weight: 40 parts of mixed modified silicone oil, 4 parts of coconut oil, 1 part of emulsifying dispersant, 2 parts of sizing agent, and 0.5 parts of functional regulator;

[0078] Among them, the mixed modified silicone oil includes carboxyl modified silicone oil, phenolic hydroxyl modified silicone oil and amino modified silicone oil, the functional regulator includes antioxidant, antibacterial agent and pH regulator, the functional regulator also includes preservative, and the antioxidant is modified oil-soluble tea polyphenols.

[0079] The mixed modified silicone oil includes 4 parts of carboxyl modified silicone oil, 5 parts of phenolic hydroxyl modified silicone oil and 9 parts of amino modified silicone oil in parts by weight;

[0080] Wherein, the emulsifying dispersant is fatty alcohol polyoxyethylene ether, and the chemical formula of fatty alcohol polyoxyethylene ether is RO(CH2CH2)nH, wherein R is a saturated C14 hydrocarbon group, and n=6;

[0081] The sizing agent is prepared by mixing castor oil polyoxyethylene ether and lauric acid polyoxyethylene ester, and the weight ratio of castor oil polyoxyethylene ether to lauric acid polyoxyethylene ester is 4:5.5;

[0082] The antistatic agent is graphene; the modified oil-soluble tea polyphenol is prepared by introducing acyl groups into the phenolic hydroxyl groups of the tea polyphenol through an oxyacylation method;

[0083] The pH value of the polyester polypropylene spinning oil is adjusted to 7.0 by a pH regulator.

[0084] The present invention provides a method for preparing an environmentally friendly, high temperature resistant polyester polypropylene spinning oil, comprising the following steps:

[0085] Step S1: Weigh the sizing agent and the emulsifying dispersant according to weight, mix them and put them into a reaction kettle, heat and stir them evenly;

[0086] Step S2: adding the mixed modified silicone oil and coconut oil according to weight parts into the reaction kettle and stirring;

[0087] Step S3: Finally, add the functional regulator into the reactor according to the weight portion, stir evenly, cool and filter to obtain the desired oil.

[0088] The heating temperature in step S1 is 45°C, the stirring time is 45 min, the stirring speed in step S2 is 750 r / min, and the stirring time is 25 min;

[0089] In step S3, after adding the functional regulator, the stirring speed is 100 r / min, and the stirring time is 30 min.

[0090] Embodiment 4:

[0091] The environmentally friendly high temperature resistant polyester polypropylene spinning oil comprises the following raw materials in parts by weight: 52 parts of mixed modified silicone oil, 7 parts of coconut oil, 2 parts of emulsifying dispersant, 4 parts of sizing agent, and 1.5 parts of functional regulator;

[0092] Among them, the mixed modified silicone oil includes carboxyl modified silicone oil, phenolic hydroxyl modified silicone oil and amino modified silicone oil, the functional regulator includes antioxidant, antibacterial agent and pH regulator, the functional regulator also includes antistatic agent, wetting agent and preservative, and the antioxidant is modified oil-soluble tea polyphenols.

[0093] The mixed modified silicone oil includes 4 parts of carboxyl modified silicone oil, 8 parts of phenolic hydroxyl modified silicone oil and 12 parts of amino modified silicone oil in parts by weight;

[0094] Wherein, the emulsifying dispersant is fatty alcohol polyoxyethylene ether, and the chemical formula of fatty alcohol polyoxyethylene ether is RO(CH2CH2)nH, wherein R2 is a saturated C13 hydrocarbon group, and n=6;

[0095] The sizing agent is prepared by mixing castor oil polyoxyethylene ether and lauric acid polyoxyethylene ester, and the weight ratio of castor oil polyoxyethylene ether to lauric acid polyoxyethylene ester is 4:5;

[0096] The antistatic agent is graphene; the modified oil-soluble tea polyphenol is prepared by introducing acyl groups into the phenolic hydroxyl groups of the tea polyphenol through an oxyacylation method;

[0097] The pH value of the polyester polypropylene spinning oil is adjusted to 7.0 by a pH regulator.

[0098] The present invention provides a method for preparing an environmentally friendly, high temperature resistant polyester polypropylene spinning oil, comprising the following steps:

[0099] Step S1: Weigh the sizing agent and the emulsifying dispersant according to weight, mix them and put them into a reaction kettle, heat and stir them evenly;

[0100] Step S2: adding the mixed modified silicone oil and coconut oil according to weight parts into the reaction kettle and stirring;

[0101] Step S3: Finally, add the functional regulator into the reactor according to the weight portion, stir evenly, cool and filter to obtain the desired oil.

[0102] The heating temperature in step S1 is 48°C, the stirring time is 30 min, the stirring speed in step S2 is 800 r / min, and the stirring time is 25 min;

[0103] In step S3, the stirring speed after adding the functional regulator is 230 r / min, and the stirring time is 30 min.

[0104] Comparative Example 1:

[0105] The spinning oil of this comparative example 1 is selected from imported bamboo oil.

[0106] Comparative Example 2:

[0107] The spinning oil of this comparative example 2 is selected from domestic high-quality spinning oil.

[0108] The weight parts of the components of Examples 1-4 and Comparative Examples 1-2 are as follows:

[0109]

[0110] The weight parts of the components of the mixed modified silicone oil in Example 1-4 and Comparative Example 1-2 are as follows:

[0111]

[0112] Performance test experiment:

[0113] Smoke emission test: Use a transmittance meter to test the smoke emission of the oil at a high temperature of 150°C. The specific transmittance test method is as follows: measure 50uL of sample into a crucible, first place the crucible in a 105°C oven for 3 hours to remove moisture, then place the crucible on a 150°C hot plate, cover it with a sealed cover, and use a transmittance meter to read the transmittance after 10 minutes; the larger the transmittance value, the smaller the smoke emission of the oil.

[0114] Thermal volatility test: weigh 0.5g of oil sample into a tart shell, place it in a 150℃ oven for 1h (or 4h), then cool it to room temperature in a desiccator, weigh it and calculate the thermal volatility of the oil; the smaller the thermal volatility value, the less likely the oil is to evaporate, and the better the heat resistance of the oil.

[0115] Antistatic performance test: The spinning oil samples obtained in Examples 1-4 and Comparative Examples 1-2 were used for 40D spandex yarn prepared by dry spinning, and the oiling rate was controlled at 5±0.5% by the drum method. The yarn was wound into cheese at 600 m / min, and the spandex fabric samples were obtained by weaving. According to the national standard GB / T33728-2017, each sample was charged to 5000 V and then the power supply was disconnected. The voltage on the sample was attenuated by grounding, and the time required for the voltage to decay to 500 V was measured, and the grade was evaluated according to the national standard.

[0116] Wear resistance test: A four-ball friction tester is used to measure the wear resistance of the oil. The specific test methods for oil film strength and oil long wear are as follows:

[0117] Test method for oil film strength: According to the national standard lubricant load-bearing capacity determination method (GB / T3142-82), the test conditions for oil film strength are spindle speed 1450r / min and friction time 10s;

[0118] The test method of oil long wear: using a four-ball friction tester, the test condition is to keep the speed at 1200r / min for 1800min under a pressure of 300N, and then use an optical microscope to measure the diameter of the wear spot of the steel ball, and take the average of the three wear spot diameters;

[0119] The stronger the oil film is and the smaller the wear spots are, the better the wear resistance of the oil is.

[0120] The test results of the oil's heat resistance and antistatic properties are as follows:

[0121]

[0122] The wear resistance test results of the oil are as follows:

[0123] Oil film strength (N) Long grinding wear spot (m) Embodiment 1 835 0.31 Embodiment 2 824 0.34 Embodiment 3 838 0.32 Embodiment 4 842 0.35 Comparative Example 1 801 0.37 Comparative Example 2 749 0.46

[0124] Combined with the above implementation and comparative examples, and combined with the test results for analysis:

[0125] By comparing Examples 1-4 with Comparative Examples 1-2, the spinning oil prepared by the present invention has excellent antistatic ability and heat resistance, and the oil film strength of the oil is high, which can prevent the problems of fiber filament hairiness, breakage, etc. in spinning and subsequent processes, while reducing the wear on equipment contact parts, and solving the pain point of easy production of white powder in the spinning process of coarse denier yarns.

[0126] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. An environmentally friendly, high temperature resistant polyester polypropylene spinning oil, characterized in that: The environmentally friendly high-temperature resistant polyester-polypropylene spinning oil comprises the following raw materials in parts by weight: 40 to 55 parts of mixed modified silicone oil, 4 to 9 parts of coconut oil, 1 to 3 parts of emulsifying dispersant, 2 to 4 parts of sizing agent, and 0.5 to 2 parts of functional regulator; Among them, the mixed modified silicone oil includes carboxyl-modified silicone oil, phenolic hydroxyl-modified silicone oil and amino-modified silicone oil, the functional regulator includes antioxidants, antibacterial agents and pH regulators, the functional regulator also includes one or more of antistatic agents, wetting agents and preservatives, and the antioxidant is modified oil-soluble tea polyphenols.

2. The environmentally friendly high temperature resistant polyester polypropylene spinning oil according to claim 1, characterized in that: The mixed modified silicone oil comprises 3 to 4 parts of carboxyl modified silicone oil, 5 to 8 parts of phenolic hydroxyl modified silicone oil and 7 to 12 parts of amino modified silicone oil in parts by weight.

3. The environmentally friendly high temperature resistant polyester polypropylene spinning oil according to claim 1, characterized in that: The emulsifying dispersant is fatty alcohol polyoxyethylene ether, and the general chemical formula of fatty alcohol polyoxyethylene ether is RO(CH2CH2)nH, wherein R is a saturated or unsaturated C12-C14 hydrocarbon group, and n=4-6.

4. The environmentally friendly high temperature resistant polyester polypropylene spinning oil according to claim 1, characterized in that: The sizing agent is prepared by mixing castor oil polyoxyethylene ether and lauric acid polyoxyethylene ester, and the weight ratio of castor oil polyoxyethylene ether to lauric acid polyoxyethylene ester is 4:(5-6).

5. The environmentally friendly high temperature resistant polyester polypropylene spinning oil according to claim 1, characterized in that: The antistatic agent is graphene.

6. The environmentally friendly high temperature resistant polyester polypropylene spinning oil according to claim 1, characterized in that: The modified oil-soluble tea polyphenol is prepared by introducing acyl groups into the phenolic hydroxyl groups of the tea polyphenol through an oxyacylation method.

7. The environmentally friendly high temperature resistant polyester polypropylene spinning oil according to claim 1, characterized in that: The pH value of the polyester polypropylene spinning oil is adjusted to 6.0-7.0 by a pH regulator.

8. A method for preparing an environmentally friendly, high temperature resistant polyester polypropylene spinning oil, according to any one of claims 1 to 7, characterized in that: The steps include: Step S1: Weigh the sizing agent and the emulsifying dispersant according to weight, mix them and put them into a reaction kettle, heat and stir them evenly; Step S2: adding the mixed modified silicone oil and coconut oil according to weight parts into the reaction kettle and stirring; Step S3: Finally, add the functional regulator into the reactor according to the weight portion, stir evenly, cool and filter to obtain the desired oil.

9. The method for preparing an environmentally friendly high temperature resistant polyester polypropylene spinning oil according to claim 8, characterized in that: The heating temperature in step S1 is 25° C. to 48° C., and the stirring time is 30 min to 75 min. The stirring speed in step S2 is 600 r / min to 900 r / min, and the stirring time is 15 min to 45 min.

10. The method for preparing an environmentally friendly high temperature resistant polyester polypropylene spinning oil according to claim 8, characterized in that: In step S3, after adding the functional regulator, the stirring speed is 180 r / min to 250 r / min, and the stirring time is 20 min to 45 min.

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