CN117776992A - Self-emulsifying low-fuming esterified substance, preparation method thereof and spinning oil composition - Google Patents
Self-emulsifying low-fuming esterified substance, preparation method thereof and spinning oil composition Download PDFInfo
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- CN117776992A CN117776992A CN202311806702.4A CN202311806702A CN117776992A CN 117776992 A CN117776992 A CN 117776992A CN 202311806702 A CN202311806702 A CN 202311806702A CN 117776992 A CN117776992 A CN 117776992A
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- 239000000203 mixture Substances 0.000 title claims abstract description 19
- 238000009987 spinning Methods 0.000 title abstract description 22
- 239000000126 substance Substances 0.000 title abstract description 15
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 37
- -1 fatty alcohol ester compound Chemical class 0.000 claims abstract description 16
- ODJQKYXPKWQWNK-UHFFFAOYSA-N 3,3'-Thiobispropanoic acid Chemical compound OC(=O)CCSCCC(O)=O ODJQKYXPKWQWNK-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003490 Thiodipropionic acid Substances 0.000 claims abstract description 14
- 235000019303 thiodipropionic acid Nutrition 0.000 claims abstract description 14
- 239000002563 ionic surfactant Substances 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 32
- 150000002191 fatty alcohols Chemical class 0.000 claims description 29
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 230000032050 esterification Effects 0.000 claims description 16
- 238000005886 esterification reaction Methods 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims description 16
- 239000003963 antioxidant agent Substances 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 14
- 230000003078 antioxidant effect Effects 0.000 claims description 12
- 239000000194 fatty acid Substances 0.000 claims description 11
- 229920000570 polyether Polymers 0.000 claims description 11
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 11
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 10
- 239000003463 adsorbent Substances 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 10
- 229930195729 fatty acid Natural products 0.000 claims description 10
- 239000000779 smoke Substances 0.000 claims description 10
- 150000002148 esters Chemical class 0.000 claims description 9
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- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 8
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 239000010779 crude oil Substances 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 8
- 239000003755 preservative agent Substances 0.000 claims description 8
- 239000003381 stabilizer Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 239000002202 Polyethylene glycol Substances 0.000 claims description 7
- 239000004359 castor oil Substances 0.000 claims description 7
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- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 7
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 7
- 229920001223 polyethylene glycol Polymers 0.000 claims description 7
- 239000000654 additive Substances 0.000 claims description 6
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical group [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 6
- 239000002736 nonionic surfactant Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 4
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- 239000011734 sodium Substances 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 4
- 229960000878 docusate sodium Drugs 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 3
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical compound [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 claims description 3
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- 238000004043 dyeing Methods 0.000 abstract description 11
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- 241000519995 Stachys sylvatica Species 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 239000008041 oiling agent Substances 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
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- 125000005227 alkyl sulfonate group Chemical group 0.000 abstract description 2
- 239000005020 polyethylene terephthalate Substances 0.000 abstract description 2
- 150000007519 polyprotic acids Polymers 0.000 abstract description 2
- 238000004513 sizing Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 18
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- CAYHVMBQBLYQMT-UHFFFAOYSA-N 2-decyltetradecan-1-ol Chemical compound CCCCCCCCCCCCC(CO)CCCCCCCCCC CAYHVMBQBLYQMT-UHFFFAOYSA-N 0.000 description 4
- SFNALCNOMXIBKG-UHFFFAOYSA-N ethylene glycol monododecyl ether Chemical compound CCCCCCCCCCCCOCCO SFNALCNOMXIBKG-UHFFFAOYSA-N 0.000 description 4
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- 229920000728 polyester Polymers 0.000 description 3
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- 230000015572 biosynthetic process Effects 0.000 description 2
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- 238000011020 pilot scale process Methods 0.000 description 2
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- LDXJRKWFNNFDSA-UHFFFAOYSA-N 2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]ethanone Chemical compound C1CN(CC2=NNN=C21)CC(=O)N3CCN(CC3)C4=CN=C(N=C4)NCC5=CC(=CC=C5)OC(F)(F)F LDXJRKWFNNFDSA-UHFFFAOYSA-N 0.000 description 1
- WZFUQSJFWNHZHM-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)CC(=O)N1CC2=C(CC1)NN=N2 WZFUQSJFWNHZHM-UHFFFAOYSA-N 0.000 description 1
- DFGKGUXTPFWHIX-UHFFFAOYSA-N 6-[2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]acetyl]-3H-1,3-benzoxazol-2-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)CC(=O)C1=CC2=C(NC(O2)=O)C=C1 DFGKGUXTPFWHIX-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a self-emulsifying and low-fuming esterified substance, a preparation method thereof and a spinning oil composition, wherein the spinning oil comprises the self-emulsifying and low-fuming esterified substance, the compound is a polybasic acid fatty alcohol ester compound, one end of thiodipropionic acid in the compound is of a nonpolar structure, the other end of the thiodipropionic acid is of a polar structure, the structure ensures that the oil composition has the characteristics of excellent self-emulsifying and smoothness, and the effects of reducing yarn hairiness and saving the dye liquor consumption during ribbon dyeing can be realized during spinning; the self-emulsifying and low-fuming esterified substance has lower surface tension, better surface activity, good thermal property and difficult volatilization, reduces the fuming amount in the heating process, reduces the occurrence of white spots, obviously improves the superior product rate of the finished terylene product, and further reduces the oiling agent smog generated by a sizing roller in production when being combined with medium-long carbon chain secondary alkyl sulfonate in an ionic surfactant.
Description
Technical Field
The invention relates to the technical field of spinning oil, in particular to a self-emulsifying low-smoke esterified substance, a preparation method thereof and a spinning oil composition.
Background
The polyester FDY oiling agent is a common chemical fiber oiling agent, is widely applied to mechanical spinning processes of textile enterprises, and adopts polyol ester as a main smoothing agent, and has the advantages of good bundling property, good emulsification due to self-contained incomplete esterified substances, but poor smoothness, and more produced yarn filaments. Meanwhile, the problems of large consumption of dyeing liquid, dyeing defects and the like occur when the woven belt is applied, after the woven belt enters the dyeing liquid, part of the yarn spinning oil is washed off and mixed with the dyeing liquid, and the ester smoothing agent in the spinning oil floats out due to incompatibility of a dyeing liquid system and the spinning oil. Over time, the more the dye liquor is accumulated, the more the dye liquor finally contacts with the woven belt, so that dyeing white spots are generated on the woven belt.
Disclosure of Invention
The invention mainly aims to provide a self-emulsifying low-fuming esterified substance, a preparation method thereof and a spinning oil composition, and aims to solve the problems that the existing spinning oil is poor in smoothness, and produced yarns are more in broken filaments and generate dyeing white spots.
In order to achieve the above object, the present invention provides a self-emulsifying, low-fuming esterified compound having a structure represented by the following structural formula (1):
R 1 O-CO-CH 2 CH 2 -S-CH 2 CH 2 -CO-(AO) p -OR 2
(1)
wherein R1 is C12-26 fatty alcohol, R 2 Is aliphatic alcohol with 12-18 carbon atoms, AO is polyether, and p is any number between 1 and 7.
Optionally, the AO is at least one of ethylene oxide and propylene oxide.
The invention also provides a preparation method of the self-emulsifying low-fuming esterified substance, which comprises the following steps:
s1, adding fatty alcohol and potassium hydroxide aqueous solution into a reaction container, replacing with nitrogen, vacuumizing, heating, removing water, heating again after the water is completely removed, pressing polyether, controlling the gas flow rate, controlling the pressure to be 0.2-0.3 Mpa, controlling the temperature to be 170-175 ℃ after the reaction is carried out until the pressure is constant, cooling, vacuumizing, extracting unreacted polyether in the container, introducing nitrogen, adding phosphoric acid, stirring, neutralizing, adding an adsorbent, heating again, stirring, adsorbing, and filtering to obtain the fatty alcohol polyoxyether;
s2, adding thiodipropionic acid solid, a water carrying agent, a catalyst and an antioxidant into an esterification kettle, adding the fatty alcohol polyoxyether into an elevated tank, heating to 80-90 ℃ to enable the thiodipropionic acid to be changed into liquid, communicating an air return pipeline of gas phases of the esterification kettle and the elevated tank, replacing and vacuumizing by using nitrogen, heating, dropwise adding the fatty alcohol polyoxyether into the elevated tank, heating again, reacting until no liquid is distilled out, cooling, adding fatty alcohol into the esterification kettle through the elevated tank, replacing and vacuumizing by using nitrogen, gradually heating, reacting until no liquid is distilled out, cooling, adding an adsorbent, discharging and filtering after adsorption, and obtaining the product self-emulsifying low-fuming esterified product.
Optionally, in step S1, the fatty alcohol is a fatty alcohol having 12 to 26 carbon atoms; and/or the number of the groups of groups,
the mass fraction of the potassium hydroxide aqueous solution is 20% -40%; and/or the number of the groups of groups,
the mass ratio of the fatty alcohol to the potassium hydroxide aqueous solution is 15-40: 1 to 2.
Optionally, in step S1, the temperature of the heating is 100 to 120 ℃; and/or the number of the groups of groups,
the temperature of the secondary heating is 120-140 ℃; and/or the number of the groups of groups,
the temperature of the cooling is 60-80 ℃; and/or the number of the groups of groups,
the temperature of the second heating is 80-100 ℃; and/or the number of the groups of groups,
the adsorbent is magnesium aluminum silicate.
Optionally, in the step S2, the mass ratio of the thiodipropionic acid solid, the water carrying agent, the catalyst, the antioxidant and the fatty alcohol polyoxyether is 60-100: 25-30: 1 to 10:0.5 to 2: 160-190; and/or the number of the groups of groups,
the fatty alcohol is a fatty alcohol with 12-18 carbon atoms.
The invention also provides a spinning oil composition, which comprises the self-emulsifying low-fuming esterified substance, a nonionic surfactant, an ionic surfactant and other additives.
Optionally, the mass ratio of the self-emulsifying low-smoke esterified substance, the nonionic surfactant, the ionic surfactant and other additives is 50-60%, 30-45%, 1-6% and 1-10% respectively.
Optionally, the nonionic surfactant comprises any one of polyethylene glycol fatty acid ester, hydrogenated castor oil polyoxyethylene ether and fatty alcohol polyether; and/or the number of the groups of groups,
the ionic surfactant comprises any one of sodium alkane sulfonate, phosphate, dioctyl sulfosuccinate and fatty acid soap; and/or the number of the groups of groups,
the other additives comprise at least one of antioxidants, pH regulators, preservatives, crude oil stabilizers and anti-ultraviolet agents.
The invention has the beneficial effects that:
(1) According to the technical scheme provided by the invention, the spinning oil comprises self-emulsifying and low-fuming esterified substances, the compound is a polybasic acid fatty alcohol ester compound, one end of thiodipropionic acid in the compound is of a nonpolar structure, and the other end of the thiodipropionic acid is of a polar structure, so that the oil composition has the characteristics of excellent self-emulsifying and smoothness, and the effects of reducing yarn hairiness and saving the dye liquor consumption during ribbon dyeing can be realized during spinning.
(2) The self-emulsifying and low-fuming esterified substance has lower surface tension, better surface activity, good thermal property and difficult volatilization, reduces the fuming amount in the heating process, has less white spots, remarkably improves the superior product rate of the finished polyester product, and further reduces the oil smoke generated by a sizing roller in production when being used in spinning oil and being combined with medium-long carbon chain secondary alkyl sulfonate in an ionic surfactant.
The achievement of the object, functional features and advantages of the present invention will be further described with reference to the embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be regarded as not exist and not within the protection scope of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The following description of the embodiments of the present invention will be presented in further detail with reference to the examples, which should be understood as being merely illustrative of the present invention and not limiting.
Example 1 synthesis of self-emulsifying, low fuming esters of the formula:
C 16 H 33 O-CO-CH 2 CH 2 -S-CH 2 CH 2 -CO-(OC 2 H 4 ) 3 -OC 12 H 25
the preparation process comprises the following steps:
(1) Adding 20 parts of lauryl alcohol and 1.2 parts of 30% potassium hydroxide aqueous solution by mass into a pilot-scale reaction kettle, replacing three times by nitrogen, vacuumizing to about 10mbar, heating to 110 ℃ for water removal, heating to 130 ℃ after water is completely removed, starting to press ethylene oxide into the kettle, controlling the gas flow rate to control the pressure to be 0.2Mpa, controlling the temperature to 170 ℃, pressing 24 parts of ethylene oxide into the kettle, stopping feeding, vacuumizing to extract unreacted ethylene oxide in the kettle when the pressure in the kettle is constant, cooling to 70 ℃, introducing nitrogen to normal pressure, adding 0.5 part of phosphoric acid, stirring and neutralizing for 0.5h, adding 1 part of adsorbent magnesium aluminum silicate, heating to 90 ℃, stirring and adsorbing for 0.5h, and filtering to obtain laurinol polyoxyethylene ether. The hydroxyl value of the laureth is 167mgKOH/g, and the relative molecular weight of the laureth is 335.9g/mol, namely the average EO addition number is 3.4.
(2) Adding 90 parts of thiodipropionic acid solid, 30 parts of water carrying agent, 2 parts of catalyst and 1 part of antioxidant into an esterification kettle, adding 168 parts of laureth into a high-level tank, sealing the esterification kettle, heating to 80 ℃ to enable the thiodipropionic acid to be changed into liquid, communicating an air return pipeline of gas phases of the esterification kettle and the high-level tank, replacing three times by nitrogen, vacuumizing to about 10mbar, heating to 110 ℃, opening a valve of the high-level tank to start slowly dropwise adding laureth, controlling the water outlet speed, gradually heating to 165 ℃ while slowly adding water, reacting for 4 hours until no liquid is distilled, cooling to 80 ℃, adding 120 parts of 2-hexyldecanol into the esterification kettle through the high-level tank, vacuumizing to about 10mbar after replacing three times by nitrogen, controlling the water outlet speed, gradually heating to 165 ℃, reacting for 4 hours until no liquid is distilled, cooling to 90 ℃, adding 5 parts of adsorbent magnesium aluminum silicate, adsorbing for 0.5 hours, discharging and filtering to obtain a product. The molecular structure is identified as follows:
1 H NMR(400MHz,CDCl 3 )δ4.34-4.21(m,2H),4.12-4.05(t,J＝6.76Hz,2H),3.78-3.56(m,12H),3.50-3.40(t,J＝6.72Hz，2H),2.85-2.77(t,J＝7.4Hz,4H),2.69-2.57(t,J＝7.24Hz,4H),1.7-1.5(tt,J＝7.16,6.30Hz,4H),1.45-1.20(m,40H),1.2-1.0(m,4H),0.92-0.80(tt,J＝6.56,6.12Hz,6H)。
the structure of the prepared target compound is consistent with that shown in the structural formula.
Example 2 synthesis of self-emulsifying, low fuming esters of the formula:
C 24 H 49 O-CO-CH 2 CH 2 -S-CH 2 CH 2 -CO-(OC 2 H 4 ) 3 -OC 24 H 49
the preparation process comprises the following steps:
(1) Adding 35 parts of 2-decyl tetradecanol and 1.4 parts of 30% potassium hydroxide aqueous solution by mass into a pilot-scale reaction kettle, replacing three times with nitrogen, vacuumizing to about 10mbar, heating to about 110 ℃ for water removal, heating to 140 ℃ after water removal, starting to press ethylene oxide into the kettle, controlling the gas flow rate to control the pressure to be 0.3Mpa, controlling the temperature to 175 ℃ after pressing 15 parts of ethylene oxide into the kettle, stopping feeding, cooling to 70 ℃ after the reaction in the kettle is constant, vacuumizing, pumping out unreacted ethylene oxide in the kettle, introducing nitrogen to normal pressure, adding 0.5 part of phosphoric acid, stirring and neutralizing for 0.5h, adding 1 part of adsorbent magnesium aluminum silicate, heating to 90 ℃, stirring and adsorbing for 0.5h to obtain the 2-decyl tetradecyl alcohol polyoxyethylene ether. The hydroxyl value of the 2-decyl tetradecyl alcohol polyoxyethylene ether is 124mgKOH/g, and the relative molecular weight of the 2-decyl tetradecyl alcohol polyoxyethylene ether is 452.4g/mol, namely the average EO addition number is 2.2.
(2) Adding 70 parts of thiodipropionic acid solid, 30 parts of water carrying agent, 2 parts of catalyst and 1 part of antioxidant into an esterification kettle, adding 180 parts of polyoxyethylene lauryl alcohol into a high-level tank, sealing the esterification kettle, heating to 90 ℃ to enable the thiodipropionic acid to be changed into liquid, communicating an air return pipeline of gas phases of the esterification kettle and the high-level tank, replacing three times by nitrogen, vacuumizing to about 30mbar, heating to about 110 ℃, opening a high-level tank valve to start slowly dropwise adding polyoxyethylene lauryl alcohol, controlling the water outlet speed, gradually heating to 180 ℃ while slowly adding materials, reacting for 6 hours until no liquid is distilled out, cooling to 80 ℃, adding 142 parts of 2-hexyldecanol into the esterification kettle through the high-level tank, vacuumizing to about 30mbar after replacing three times by nitrogen, controlling the water outlet speed, gradually heating to 180 ℃, reacting for 6 hours until no liquid is distilled out, cooling to 90 ℃, adding 5 parts of adsorbent magnesium aluminum silicate, adsorbing for 0.5 hours, discharging and filtering to obtain a product. The molecular structure is identified as follows:
1 H NMR(400MHz,CDCl 3 )δ4.34-4.21(m,2H),4.12-4.05(t,J＝6.72Hz,2H),3.78-3.56(m,12H),3.50-3.40(t,J＝6.68Hz，2H),2.85-2.77(t,J＝7.36Hz,4H),2.69-2.57(t,J＝7.24Hz,4H),1.68-1.5(tt,J＝7.12,6.40Hz,4H),1.45-1.20(m,40H),1.2-1.0(m,4H),0.92-0.80(tt,J＝6.54,6.30Hz,6H)。
the structure of the prepared target compound is consistent with that shown in the structural formula.
Example 3 a spin finish composition comprising the following components:
50% of the product in example 1, 20% of polyethylene glycol fatty acid ester, 10% of hydrogenated castor oil polyoxyethylene ether, 1% of alkane sodium sulfonate, 1% of antioxidant, 0.5% of preservative and 0.5% of crude oil stabilizer.
Example 4 a spin finish composition comprising the following components:
60% of the product of example 2, 25% of polyethylene glycol fatty acid ester, 15% of hydrogenated castor oil polyoxyethylene ether, 5% of fatty alcohol polyether, 6% of phosphate ester salt, 1% of antioxidant, 0.5% of preservative and 0.5% of crude oil stabilizer.
Example 5 a spin finish composition comprising the following components:
10% of the product of example 1 and 50% of the product of example 2, 20% of a polyethylene glycol fatty acid ester, 15% of hydrogenated castor oil polyoxyethylene ether, 5% of fatty alcohol polyether, 3% of dioctyl sulfosuccinate, 1% of an antioxidant, 0.5% of a preservative and 0.5% of a crude oil stabilizer.
Comparative example 1
50% of triglyceride fatty acid ester, 20% of polyethylene glycol fatty acid ester, 10% of hydrogenated castor oil polyoxyethylene ether, 1% of alkane sodium sulfonate, 1% of antioxidant, 0.5% of preservative and 0.5% of crude oil stabilizer.
Comparative example 2
60% of trimethylolpropane tri-fatty acid ester, 25% of polyethylene glycol fatty acid ester, 15% of hydrogenated castor oil polyoxyethylene ether, 5% of fatty alcohol polyether, 6% of phosphate, 1% of antioxidant, 0.5% of preservative and 0.5% of crude oil stabilizer.
Comparative example 3
Pine 100 oil, 1% of antioxidant, 0.5% of preservative and 0.5% of crude oil stabilizer.
Test method and results
Smoke generation test: the spinning oil compositions of examples 3 to 5 and comparative examples 1 to 3 were placed in an evaporation pan by 20g, heated on a heating pan, and the amount of fuming was counted by a smoke particle counter to obtain Table 1.
The spinning oil compositions in examples 3-5 and comparative examples 1-3 were tried on terylene 1000D/96f, and the number of filaments and the length of the continuously produced webbing were examined; the results of the above experiments are shown in Table 2.
TABLE 1 fuming amount of spinning dope
| Particle size | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| 0.3μm | 52341 | 51123 | 48301 | 124534 | 269043 | 254981 |
| 0.5μm | 50123 | 50341 | 46493 | 123681 | 239641 | 235776 |
| 1.0μm | 10 | 12 | 5 | 572 | 655 | 497 |
| 5.0μm | 0 | 0 | 0 | 0 | 0 | 0 |
| 10.0μm | 0 | 0 | 0 | 0 | 0 | 0 |
TABLE 2 Table 2 Performance parameters of spin finish compositions
| Group of | Number of filaments/number of filaments | Continuous production of webbing/meter |
| Example 3 | 2 | 26800 |
| Example 4 | 1 | 27600 |
| Example 5 | 3 | 27240 |
| Comparative example 1 | 15 | 13900 |
| Comparative example 2 | 16 | 14400 |
| Comparative example 3 | 10 | 18000 |
From the above statistics, the spin finish compositions of examples 3 to 5 of the present application showed lower smoke generation, lower number of filaments, and longer continuous webbing than comparative examples 1 to 3, indicating better spinnability of the spin finish of the present invention.
In summary, the spinning oil provided by the invention comprises self-emulsifying and low-fuming esterified substances, and the compound enables the oil composition to have the characteristics of excellent self-emulsifying and smoothness, so that the effects of reducing yarn hairline and saving the dye liquor consumption during ribbon dyeing can be realized during spinning; the thermal performance is good, the volatilization is difficult, the smoke amount in the heating process is reduced, the occurrence of dyeing white spots is small, and the high-quality rate of the finished polyester product is obviously improved.
The foregoing is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention, but various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. A self-emulsifying, low-fuming ester, characterized in that the self-emulsifying, low-fuming ester has a structure represented by the following structural formula (1):
R 1 O-CO-CH 2 CH 2 -S-CH 2 CH 2 -CO-（AO） p -OR 2
（1）
wherein R1 is C12-26 fatty alcohol, R 2 Is aliphatic alcohol with 12-24 carbon atoms, AO is polyether, and p is any number between 1 and 7.
2. The self-emulsifying, low smoke ester of claim 1 wherein AO is at least one of ethylene oxide, propylene oxide.
3. A method of preparing a self-emulsifying, low smoke ester according to claim 1, comprising the steps of:
s1, adding fatty alcohol and potassium hydroxide aqueous solution into a reaction container, replacing with nitrogen, vacuumizing, heating, removing water, heating again after the water is completely removed, pressing polyether, controlling the gas flow rate, controlling the pressure to be 0.2-0.3 Mpa, controlling the temperature to be 170-175 ℃ after the reaction is carried out until the pressure is constant, cooling, vacuumizing, extracting unreacted polyether in the container, introducing nitrogen, adding phosphoric acid, stirring, neutralizing, adding an adsorbent, heating again, stirring, adsorbing, and filtering to obtain fatty alcohol polyoxyether;
s2, adding thiodipropionic acid solid, a water carrying agent, a catalyst and an antioxidant into an esterification kettle, adding the fatty alcohol polyoxyether into an elevated tank, heating to 80-90 ℃ to enable the thiodipropionic acid to be changed into liquid, communicating an air return pipeline of the esterification kettle and an elevated tank gas phase, replacing and vacuumizing by using nitrogen, heating, dropwise adding the fatty alcohol polyoxyether into the elevated tank, heating again, reacting until no liquid is distilled out, cooling, adding fatty alcohol into the esterification kettle through the elevated tank, replacing and vacuumizing by using nitrogen, gradually heating, reacting until no liquid is distilled out, cooling, adding an adsorbent, discharging and filtering after adsorption, and obtaining the product self-emulsifying low-fuming esterified product.
4. The method for producing a self-emulsifying, low-fuming ester of claim 3, wherein in step S1, the fatty alcohol is a fatty alcohol having 12 to 26 carbon atoms; and/or the number of the groups of groups,
the mass fraction of the potassium hydroxide aqueous solution is 20% -40%; and/or the number of the groups of groups,
the mass ratio of the fatty alcohol to the potassium hydroxide aqueous solution is 15-40: 1-2.
5. The method for producing a self-emulsifying, low-fuming esterification product as claimed in claim 3, wherein in step S1, the temperature of the temperature rise is 100 to 120 ℃; and/or the number of the groups of groups,
the temperature of the secondary heating is 120-140 ℃; and/or the number of the groups of groups,
the temperature of the cooling is 60-80 ℃; and/or the number of the groups of groups,
the temperature of the secondary heating is 80-100 ℃; and/or the number of the groups of groups,
the adsorbent is magnesium aluminum silicate.
6. The method for preparing a self-emulsifying low-fuming esterified product as claimed in claim 3, wherein in step S2, the mass ratio of thiodipropionic acid solid, water-carrying agent, catalyst, antioxidant and fatty alcohol polyoxyether is 60-100: 25-30: 1-10: 0.5-2: 160-190; and/or the number of the groups of groups,
the fatty alcohol is a fatty alcohol with 12-24 carbon atoms.
7. A spin finish composition comprising the self-emulsifying, low smoke ester of claim 1, and a nonionic surfactant, an ionic surfactant, and other additives.
8. The spin finish composition of claim 7, wherein the self-emulsifying low-fuming esterification product, nonionic surfactant, ionic surfactant, and other additives comprise 50-60%, 30-45%, 1-6%, and 1-10% by mass, respectively.
9. The spin finish composition of claim 7 wherein the nonionic surfactant comprises any one of polyethylene glycol fatty acid esters, hydrogenated castor oil polyoxyethylene ethers, fatty alcohol polyethers; and/or the number of the groups of groups,
the ionic surfactant comprises any one of sodium alkane sulfonate, phosphate, dioctyl sulfosuccinate and fatty acid soap; and/or the number of the groups of groups,
the other additives comprise at least one of antioxidants, pH regulators, preservatives, crude oil stabilizers and anti-ultraviolet agents.
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