Anti-tangling leather collar suitable for vortex spinning process and treatment method thereof
By coating the aprons with a composite coating and subjecting them to light and static treatment in the vortex spinning process, the problem of apron entanglement was solved, improving the stability of spinning and the quality of yarn.
Patent Information
- Application Number
- CN202510945833.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-09
- Publication Date
- 2025-11-04
AI Technical Summary
In existing vortex spinning processes, the oil content of textile raw materials leads to frequent apron entanglement, affecting production efficiency and yarn quality.
The rubber ring body is coated with a composite coating consisting of component A and component B. Component A includes dichloromethane and phenyl 3-isocyanate, and component B includes trichloroethylene. Through ultraviolet light irradiation and static treatment, antistatic oligomers and modified alumina are formed, which improves the antistatic properties and mechanical strength of the rubber ring.
It effectively reduces fiber entanglement, improves spinning continuity and yarn quality, and enhances fiber drafting accuracy and the stability of the spinning process.
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Figure CN120889076A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of aprons, in particular to an anti-winding apron suitable for vortex spinning process and a processing method thereof. BACKGROUND
[0002] The apron is one of the very important drafting devices in vortex spinning, and the surface performance of the outer layer thereof is directly related to the control of fiber movement and the anti-winding performance of the apron in the vortex spinning drafting process, thereby affecting the quality of the yarn.
[0003] The apron in vortex spinning is in the third drafting zone of spinning drafting, and the sliver needs to complete a drafting process of about 10-60 times in this drafting zone, and the role of the apron is to orderly control the drafting of the sliver and actively and correctly deliver the sliver to the front apron roller and front roller for drafting into yarn. Therefore, the apron is required to not only ensure its good drafting effect, but also have stable anti-winding holding capacity, which requires the apron to be synchronized with the middle and lower rollers, eliminate the speed difference between the upper and lower aprons, and avoid the apron from slipping during the delivery of the sliver, so as to affect the orderly arrangement of the fibers and the product quality.
[0004] However, the current textile raw materials have a high oil content, and the phenomenon of winding the apron occurs during vortex spinning, which affects the production efficiency of vortex spinning. SUMMARY
[0005] In order to improve the above problems, the present application provides an anti-winding apron suitable for vortex spinning process and a processing method thereof.
[0006] In a first aspect, the present application provides an anti-winding apron suitable for vortex spinning process, which adopts the following technical solution: an anti-winding apron suitable for vortex spinning process, comprising an apron body and a composite coating, the composite coating is formed by coating a composite coating on the surface of the apron body, the composite coating comprises component A and component B, the component A comprises dichloromethane and 3-isocyanate, and the component B comprises trichloroethylene.
[0007] By adopting the above technical solution, the surface of the apron body is coated and treated by the composite coating, which can effectively improve the stability of the apron body. The component A comprises dichloromethane and 3-isocyanate, and 3-isocyanate has good antistatic performance, thereby giving the apron body antistatic performance, which can effectively reduce the phenomenon of fiber aggregation and winding, improve the continuity of spinning, and improve the precision of fiber drafting to improve the quality of the yarn.
[0008] The B component includes trichloroethylene, which plays a role of dissolving and diluting, and can play a role of auxiliary antistatic, can form a conductive film, further reduces the phenomenon of fiber winding, thereby improving the stability and quality of the spinning process. Preferably, the mass ratio between the A component and the B component is 1:(3-6).
[0009] By adopting the above technical scheme, the stability of the overall composite coating prepared can be further improved by preferably setting the mass ratio between the A component and the B component within the above range.
[0010] Preferably, the A component further includes an antistatic oligomer, and the raw material of the antistatic oligomer includes polyhexanedioic acid-1,4-butanediol glycol, octadecylamine polyoxyethylene ether, isophorone diisocyanate, and 1,4-butanediol and p-hydroxyphenyl ether.
[0011] By adopting the above technical scheme, the octadecylamine polyoxyethylene ether is used as a reaction monomer, and the antistatic coating is prepared by compounding other components, and the antistatic oligomer has a cross-linked network structure, thereby effectively improving the adhesion and mechanical strength of the overall system, further improving the stability of the apron as a whole, further reducing the phenomenon of fiber winding and aggregation, and thereby improving the stability of the vortex spinning.
[0012] Preferably, the antistatic oligomer is prepared by the following method: The polyhexanedioic acid-1,4-butanediol, octadecylamine polyoxyethylene ether and 1,4-butanediol are mixed, heated and stirred, dibutyltin dilaurate is added to obtain a prepolymer; 1,4-butanediol is added to the prepolymer for reaction, and after the reaction, pentaerythritol triacrylate and dipentaerythritol hexaacrylate are added for reaction to obtain a polyurethane system, and glacial acetic acid is added to the polyurethane system for neutralization reaction to obtain the antistatic oligomer.
[0013] By adopting the above technical scheme, the octadecylamine polyoxyethylene ether is used as a reaction monomer, and the antistatic oligomer is prepared by introducing a tertiary amine acetate structure into the PUA molecular chain through the structure of the tertiary amine and the neutralization reaction of acetic acid. After adding the octadecylamine polyoxyethylene ether, it can absorb the moisture in the air to form a water film on the surface of the system, and the tertiary amine acetate structure in the inner part can endow the water film with higher conductivity, thereby further improving the antistatic performance of the overall system, and the overall system is connected by covalent bonds, which can improve the stability of the overall system.
[0014] Preferably, the mass ratio between the octadecylamine polyoxyethylene ether and the polyhexanedioic acid-1,4-butanediol glycol is 1:(6-8).
[0015] By adopting the technical scheme, the mass ratio between the octadecylamine polyoxyethylene ether and the polyhexanedioic acid-1,4-butanediol glycol is within the range, so that the polyoxyethylene segment can interact with the body of the apron, thereby further improving the adhesion and stability of the prepared antistatic coating.
[0016] Preferably, the mass content of dipentaerythritol hexaacrylate in the antistatic oligomer raw material is 13-17%.
[0017] By adopting the technical scheme, the mass fraction of dipentaerythritol hexaacrylate in the antistatic oligomer raw material is within the range, so that the density of the composite coating can be improved, thereby further improving the mechanical strength of the composite coating.
[0018] Preferably, the component B further comprises modified alumina, and the modified alumina raw material comprises alumina, carbon nanotubes and 3-aminopropyl triethoxysilane.
[0019] By adopting the technical scheme, the modified alumina is prepared by alumina, carbon nanotubes and 3-aminopropyl triethoxysilane, which can further improve the mechanical strength of the composite coating. At the same time, the dispersion performance of the prepared modified alumina in the composite coating is improved by treating the alumina and carbon nanotubes with 3-aminopropyl triethoxysilane, thereby improving the stability of the composite coating and effectively improving the roughness of the surface of the apron body to further improve the carding effect of the fibers.
[0020] Preferably, the modified alumina is prepared by the following method: The carbon nanotubes, ethanol and water are mixed and dispersed to obtain a carbon nanotube dispersion liquid. The 3-aminopropyl triethoxysilane, ethanol and water are mixed and stirred to obtain a silane solution. The alumina is added to the carbon nanotube dispersion liquid and stirred. The silane solution is added during the stirring process. The mixture is ultrasonically dispersed, centrifuged and dried to obtain the modified alumina.
[0021] By adopting the technical scheme, the 3-aminopropyl triethoxysilane is used as an intermediate to graft the alumina onto the surface of the carbon nanotubes. The amino group introduced by the 3-aminopropyl triethoxysilane reacts with the groups on the surface of the carbon nanotubes to form an amide, and the physical adsorption is used together to prepare the modified alumina, thereby improving the bonding strength of the composite coating and enabling the modified alumina to be uniformly dispersed in the composite coating, thereby further improving the stability of the system as a whole.
[0022] Preferably, the mass ratio between the carbon nanotubes, 3-aminopropyl triethoxysilane and alumina is 1:(5.2-5.8):4.
[0023] By adopting the above technical scheme, the mass ratio between the carbon nanotube and the 3-aminopropyl triethoxysilane and the alumina is within the above range, and the stability of the modified alumina prepared as a whole can be further improved.
[0024] In a second aspect, the application provides a processing method for preventing the entanglement of the apron suitable for the vortex spinning process, which adopts the following technical scheme: A processing method for preventing the entanglement of the apron suitable for the vortex spinning process, comprising the following steps: (1) Coating: fixing the apron body to the grinding machine equipment, uniformly coating the composite coating on the surface of the apron body to obtain the treated apron; (2) Light treatment: treating the treated apron by ultraviolet irradiation to obtain the apron after light treatment; during the treatment, the apron uniformly rotates in the light irradiation area, wherein the apron body coated with the composite coating enters the light irradiation area to start the timing, and leaves the light irradiation area to terminate the timing, the travel is 60 cm, the light irradiation time is 1-2 min, the light irradiation temperature is 50-60℃, and the apron after light treatment is obtained (3) Standing treatment: placing the apron after light treatment in the dark, and obtaining the anti-entanglement apron after the coating is fully absorbed.
[0025] By adopting the above technical scheme, the characteristics of the ultraviolet light changing the activity of the molecules of the irradiated object are used to make the coating penetrate the surface of the apron made of rubber material faster and more uniformly. During the standing treatment, the contact of the anti-entanglement apron is reduced, the uniformity and absorption effect of the composite coating are improved, and the light shielding treatment is performed at the same time. The friction coefficient of the contact surface of the anti-entanglement apron changes when it is exposed to sunlight for a long time, and the mechanical wave caused by the inconsistent friction coefficient of the same apron after the machine is used is effectively reduced. The stability of the anti-entanglement apron is further improved.
[0026] In summary, the application has at least one of the following beneficial technical effects: 1. The apron body surface is coated and treated by the composite coating, which can effectively improve the stability of the apron body. Component A includes dichloro and 3-isocyanate phenyl ester, and 3-isocyanate phenyl ester has good antistatic performance, which can give the apron body antistatic performance, effectively reduce the phenomenon of fiber aggregation and entanglement, improve the continuity of spinning, and improve the precision of fiber drafting to improve the quality of the yarn. 2. The octadecylamine polyoxyethylene ether is used as a reaction monomer to introduce a tertiary amine acetate structure into the PUA molecular chain through the neutralization reaction of the tertiary amine structure and acetic acid. After adding octadecylamine polyoxyethylene ether, it can absorb moisture in the air to form a water film on the surface of the system. The tertiary amine acetate structure inside the water film can give the water film higher electrical conductivity, thereby further improving the antistatic performance of the system as a whole. The system as a whole is connected by covalent bonds, which can improve the stability of the system as a whole. 3. The modified alumina is prepared by alumina, carbon nanotubes and 3-aminopropyl triethoxysilane. It can further improve the mechanical strength of the composite coating as a whole. At the same time, the dispersion performance of the prepared modified alumina in the composite coating is improved by treating the alumina and carbon nanotubes with 3-aminopropyl triethoxysilane, thereby improving the stability of the composite coating and effectively improving the roughness of the surface of the apron body to further improve the carding effect of the fibers. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 is the overall schematic diagram of the grinding machine equipment in the embodiment of the present application.
[0028] BRIEF DESCRIPTION OF DRAWINGS 1, working base; 2, grinding machine driving system; 3, mold clamp; 4, apron special sleeve roller. DETAILED DESCRIPTION
[0029] The present application will be further described in detail below in combination with the embodiments: REFERENCE Figure 1 The apron body in the present application is in the process of coating the coating, and the grinding machine equipment includes a working base 1, a grinding machine driving system 2, a mold clamp 3 and a apron special sleeve roller 4. The grinding machine driving system 2 is a prior art, which can drive the apron special sleeve roller 4 to rotate. The mold clamp 3 can be rotatably connected with the apron special sleeve roller 4 and can be detachably connected with the apron special sleeve roller 4, so that the apron body can be sleeved on the apron special sleeve roller 4. After the apron body is sleeved on the apron special sleeve roller 4, the coating of the composite coating is carried out, which can further improve the convenience and stability of the apron body during the coating of the composite coating.
[0030] Raw material description: all raw materials in the embodiment can be obtained by market purchase; Example 1 Preparation of component A: dichloromethane (CAS No.: 75-09-2) and 3-isocyanate phenyl ester (CAS No.: 4151-51-3) are mixed in a mass ratio of 1:1. After stirring for 30 min, component A is obtained.
[0031] Preparation of component B: trichloroethylene (CAS No.: 79-01-6) is component B.
[0032] Preparation of the composite coating: after mixing component A and component B at a mass ratio of 1:3, stirring uniformly, the composite coating is obtained.
[0033] Processing the anti-winding apron: (1) Coating: the apron body is sleeved to the apron special sleeve roller 4, and the composite coating is uniformly coated on the surface of the apron body to obtain the processed apron; (2) Light treatment: the processed apron is taken off from the apron special sleeve roller 4, and ultraviolet light irradiation treatment is carried out to obtain the light-treated apron; during the ultraviolet light irradiation treatment, the processed apron is uniformly rotated in the ultraviolet light irradiation area, wherein the apron body coated with the composite coating enters the irradiation area to start timing, and leaves the irradiation area to terminate timing, the travel is 60 cm, the irradiation time is 1 min, and the irradiation temperature is 60°C, to obtain the light-treated apron; (3) Standing treatment: the light-treated apron is placed in the dark, and after the composite coating is fully absorbed, the anti-winding apron is obtained.
[0034] Example 2 Preparation of component A: dichloromethane and 3-isocyanate phenyl ester are mixed at a mass ratio of 1:1, stirred for 30 min, and component A is obtained.
[0035] Preparation of component B: trichloroethylene is component B.
[0036] Preparation of the composite coating: after mixing component A and component B at a mass ratio of 1:6, stirring uniformly, the composite coating is obtained.
[0037] Processing the anti-winding apron: (1) Coating: the apron body is sleeved to the apron special sleeve roller 4, and the composite coating is uniformly coated on the surface of the apron body to obtain the processed apron; (2) Light treatment: the processed apron is taken off from the apron special sleeve roller 4, and ultraviolet light irradiation treatment is carried out to obtain the light-treated apron; during the ultraviolet light irradiation treatment, the processed apron is uniformly rotated in the ultraviolet light irradiation area, wherein the apron body coated with the composite coating enters the irradiation area to start timing, and leaves the irradiation area to terminate timing, the travel is 60 cm, the irradiation time is 1 min, and the irradiation temperature is 60°C, to obtain the light-treated apron; (3) Standing treatment: the light-treated apron is placed in the dark, and after the composite coating is fully absorbed, the anti-winding apron is obtained.
[0038] Example 3 Preparation of the anti-static oligomer: After 17.75 g of polybutylene adipate (CAS No.: 150923-12-9), 2.96 g of octadecylamine polyoxyethylene ether (CAS No.: 26635-92-7) and 1.26 g of 1,4-butanediol (CAS No.: 110-63-4) were mixed, a pre-polymer was obtained by keeping stirring in an oil bath at 80°C under the protection of nitrogen, adding 0.1 g of dibutyl tin dilaurate (CAS No.: 77-58-7) after 10 min and pre-polymerizing for 1 h; the oil bath temperature was adjusted to 70°C, then 1.26 g of 1,4-butanediol was added to the pre-polymer, and the reaction was carried out for 2 h, during which ethyl acetate was added to adjust the viscosity of the system; 19.22 g of pentaerythritol triacrylate (CAS No.: 3524-68-3) was added after the reaction, and then 13 wt% of dipentaerythritol hexaacrylate (CAS No.: 29570-58-9) based on the mass fraction of the system was added; the reaction was carried out for 6 h, during which ethyl acetate was added to adjust the viscosity of the system, to obtain a polyurethane system; the nitrogen was removed, and the oil bath temperature was reduced to 50°C; 1.5 g of glacial acetic acid (CAS No.: 64-19-7) was added to the polyurethane system, and the neutralization reaction was carried out for 30 min, to obtain an antistatic oligomer.
[0039] Preparation of modified alumina: After 1.47 g of carbon nanotubes, 80 g of ethanol and 20 g of deionized water were mixed and magnetically stirred for 4 h and then ultrasonically dispersed for 1 h, a carbon nanotube dispersion was obtained; after 7.65 g of 3-aminopropyl triethoxysilane (CAS No.: 919-30-2), 80 g of ethanol and 20 g of deionized water were mixed, acetic acid was added to adjust the pH value of the system to 4, and stirring was carried out at 60°C for 30 min, a silane solution was obtained; 5.88 g of alumina was added to the carbon nanotube dispersion, and then stirring was carried out at 60°C for 6 h, during which the silane solution was added within 20 min, and then ultrasonic dispersion was carried out for 1 h, to obtain a mixture; after the reaction, the mixture was centrifuged, the supernatant was removed, and then the mixture was washed alternately with deionized water and ethanol; and then the mixture was dried in a vacuum drying box at 60°C for 18 h, to obtain modified alumina after grinding.
[0040] Preparation of component A: dichloromethane, 3-isocyanate phenyl and antistatic oligomer were mixed in a mass ratio of 1:1:0.5, and after stirring for 30 min, component A was obtained.
[0041] Preparation of component B: trichloroethylene and modified alumina were mixed in a mass ratio of 10:1, and after ultrasonic dispersion for 5 min, component B was obtained.
[0042] Preparation of composite coating: component A and component B were mixed in a mass ratio of 1:3, and after uniform stirring, a composite coating was obtained.
[0043] Processing anti-winding apron: (1) Coating: the apron body is sleeved to the apron special sleeve roll 4, and the composite coating is uniformly coated on the surface of the apron body to obtain a processed apron; (2) Light treatment: the processed apron is taken off from the apron special sleeve roll 4, and ultraviolet light irradiation treatment is performed to obtain a light-treated apron; during the ultraviolet light irradiation treatment, the processed apron is uniformly rotated in the ultraviolet light irradiation area, wherein the apron body coated with the composite coating enters the irradiation area to start timing, and leaves the irradiation area to terminate timing, the travel is 60 cm, the irradiation time is 1 min, and the irradiation temperature is 60℃, to obtain the light-treated apron; (3) Standing treatment: the light-treated apron is placed in the dark and stands until the composite coating is fully absorbed to obtain the anti-winding apron.
[0044] Example 4 Preparation of antistatic oligomer: After mixing 18.41 g of polyhexanedioic acid-1,4-butanediol, 2.3 g of octadecylamine polyoxyethylene ether and 1.26 g of 1,4-butanediol, the mixture is kept stirring in an oil bath at 80℃ under nitrogen protection. After 10 min, 0.1 g of dibutyltin dilaurate is added and pre-polymerization is carried out for 1 h. Then the oil bath temperature is adjusted to 70℃, and 1.26 g of 1,4-butanediol is added to the pre-polymer. After 2 h of reaction, ethyl acetate is added to adjust the viscosity of the system. After the reaction, 19.22 g of pentaerythritol triacrylate and 17wt% of dipentaerythritol hexaacrylate based on the mass fraction of the system are added. After 6 h of reaction, ethyl acetate is added to adjust the viscosity of the system. The nitrogen is removed, and the oil bath temperature is reduced to 50℃. 1.5 g of glacial acetic acid is added to the polyurethane system, and neutralization is carried out for 30 min to obtain the antistatic oligomer.
[0045] Preparation of modified alumina: 1.39 g of carbon nanotubes, 80 g of ethanol and 20 g of deionized water are mixed, and after magnetic stirring for 4 h and ultrasonic dispersion for 1 h, a carbon nanotube dispersion liquid is obtained. 8.05 g of 3-aminopropyltriethoxysilane, 80 g of ethanol and 20 g of deionized water are mixed, and the pH value of the system is adjusted to 4 by adding acetic acid. After stirring at 60℃ for 30 min, a silane solution is obtained. 5.56 g of alumina is added to the carbon nanotube dispersion liquid, and then stirred at 60℃ for 6 h. During the stirring process, the silane solution is added within 20 min, and then ultrasonic dispersion is carried out for 1 h to obtain a mixture. After the reaction, the mixture is centrifuged to remove the supernatant, and then washed with deionized water and ethanol alternately. Then, the mixture is dried in a vacuum drying oven at 60℃ for 18 h. After grinding, the modified alumina is obtained.
[0046] Preparation of component A: dichloromethane, 3-isocyanate phenyl ester and antistatic oligomer were mixed in a mass ratio of 1:1:0.5, after stirring for 30 min, component A was obtained.
[0047] Preparation of component B: trichloroethylene and modified alumina were mixed in a mass ratio of 10:1, after ultrasonic dispersion for 5 min, component B was obtained.
[0048] Preparation of composite coating: component A and component B were mixed in a mass ratio of 1:3, after uniform stirring, the composite coating was obtained.
[0049] Processing anti-winding apron: (1) Coating: the apron body was sleeved to the apron special sleeve roller 4, the composite coating was uniformly coated on the surface of the apron body, and the treated apron was obtained; (2) Light treatment: the treated apron was taken off from the apron special sleeve roller 4, and ultraviolet light irradiation treatment was carried out, and the light treated apron was obtained; during the ultraviolet light irradiation treatment, the treated apron was uniformly rotated in the ultraviolet light irradiation area, wherein the apron body coated with the composite coating entered the irradiation area, and the irradiation area was taken as the termination time, the travel was 60 cm, the irradiation time was 1 min, the irradiation temperature was 60℃, and the light treated apron was obtained; (3) Standing treatment: the light treated apron was placed in the dark, and after the composite coating was fully absorbed, the anti-winding apron was obtained.
[0050] Example 5 Preparation of antistatic oligomer: After 18.12 g of polyhexanedioic acid-1,4-butanediol, 2.59 g of octadecylamine polyoxyethylene ether and 1.26 g of 1,4-butanediol were mixed, the oil bath was kept at 80℃ under the condition of nitrogen protection, and stirring was kept for 10 min, then 0.1 g of dibutyl tin dilaurate was added, and pre-polymerization was carried out for 1 h; the oil bath temperature was adjusted to 70℃, then 1.26 g of 1,4-butanediol was added to the pre-polymer, and reaction was carried out for 2 h; during the reaction, ethyl acetate was added to adjust the viscosity of the system; after the reaction, 19.22 g of pentaerythritol triacrylate was added, and then 15wt% of bis-pentaerythritol hexaacrylate based on the mass fraction of the system was added; reaction was carried out for 6 h, and during the reaction, ethyl acetate was added to adjust the viscosity of the system; a polyurethane system was obtained; nitrogen was removed, and the oil bath temperature was reduced to 50℃; 1.5 g of glacial acetic acid was added to the polyurethane system, and neutralization reaction was carried out for 30 min; an antistatic oligomer was obtained.
[0051] Preparation of modified alumina: Mix 1.43 g of carbon nanotubes, 80 g of ethanol and 20 g of deionized water, magnetically stir for 4 h and then ultrasonic dispersion for 1 h to obtain a carbon nanotube dispersion liquid. Mix 7.86 g of 3-aminopropyl triethoxysilane, 80 g of ethanol and 20 g of deionized water, then add acetic acid to adjust the pH value of the system to 4, stir at 60°C for 30 min to obtain a silane solution. Add 5.71 g of alumina to the carbon nanotube dispersion liquid, then stir at 60°C for 6 h, add the silane solution during the stirring process within 20 min, then ultrasonic dispersion for 1 h to obtain a mixture. After the reaction, centrifuge the mixture, remove the supernatant, wash with deionized water and ethanol alternately, and then dry in a vacuum drying oven at 60°C for 18 h. After grinding, the modified alumina is obtained.
[0052] Preparation of component A: dichloromethane, 3-isocyanate phenyl and antistatic oligomer are mixed in a mass ratio of 1:1:0.5, stirred for 30 min to obtain component A.
[0053] Preparation of component B: trichloroethylene and modified alumina are mixed in a mass ratio of 10:1, ultrasonic dispersion for 5 min to obtain component B.
[0054] Preparation of composite coating: component A and component B are mixed in a mass ratio of 1:3, stirred uniformly to obtain a composite coating.
[0055] Processing anti-winding apron: (1) Coating: the apron body is sleeved on the apron special sleeve roller 4, and the composite coating is uniformly coated on the surface of the apron body to obtain a processed apron; (2) Light treatment: the processed apron is taken off from the apron special sleeve roller 4, and ultraviolet light treatment is carried out to obtain a light treated apron. During the ultraviolet light treatment, the processed apron is uniformly rotated in the ultraviolet light irradiation area. The apron body coated with the composite coating enters the irradiation area as the starting time, and leaves the irradiation area as the ending time. The travel distance is 60 cm, the irradiation time is 1 min, and the irradiation temperature is 60°C. The light treated apron is obtained. (3) Standing treatment: the light treated apron is placed in the dark for standing, and the anti-winding apron is obtained after the composite coating is fully absorbed.
[0056] Example 6 Example 6 is based on Example 5. In Example 6, 4.14 g of polyhexanedioic acid-1,4-butanediol and 16.57 g of octadecylamine polyoxyethylene ether are added when preparing the antistatic oligomer.
[0057] Example 7 Example 7
[0058] Example 8 Example 8 is based on Example 5, and in the preparation of the antistatic oligomer in Example 8, the amount of polyhexamethylene adipate-1,4-butylene glycol added is 1.88 g, and the amount of octadecylamine polyoxyethylene ether added is 18.83 g.
[0059] Example 9 Example 9 is based on Example 5, and in the preparation of the antistatic oligomer in Example 9, the amount of dipentaerythritol hexaacrylate in the system is 20% by mass.
[0060] Example 10 Example 10 is based on Example 5, and in the preparation of the modified alumina in Example 10, the amount of carbon nanotubes used is 1.55 g, the amount of 3-aminopropyl triethoxysilane used is 7.26 g, and the amount of alumina used is 6.19 g.
[0061] Example 11 Example 11 is based on Example 5, and in the preparation of the modified alumina in Example 11, the amount of carbon nanotubes used is 1.33 g, the amount of 3-aminopropyl triethoxysilane used is 8.36 g, and the amount of alumina used is 5.31 g.
[0062] Example 12 Example 12 is based on Example 5, and in the preparation of the modified alumina in Example 12, no carbon nanotubes are added.
[0063] Example 13 Example 13 is based on Example 5, and in Example 13, the modified alumina is replaced by ordinary alumina.
[0064] Example 14 Example 14 is based on Example 1, and in Example 14, the mass ratio of Component A to Component B is 1:4.
[0065] Example 15 Example 15 is based on Example 1, and in Example 15, the mass ratio of Component A to Component B is 1:5.
[0066] Example 16 Example 16 is based on Example 1, and in Example 16, when coating the coating body with composite paint, the coating body is directly coated with composite paint without being placed in the special sleeve roll of the grinding machine equipment.
[0067] Comparative Example 1 Comparative Example 1 is based on Example 1, and in Comparative Example 1, the anti-winding apron is treated without light treatment.
[0068] Comparative Example 2 Comparative Example 2 is based on Example 1, and in Comparative Example 1, the anti-winding apron is treated without standing treatment.
[0069] Performance test For Examples 1-16 and Comparative Examples 1-2, the following performance tests are performed: (1) Anti-static performance test The static adhesion rate of the apron body surface is tested using a 342D static tester, and each sample is tested 3 times, the average value is taken, and the test results are filled in Table 1.
[0070] (2) Tensile performance The tensile performance of the sample is tested according to GB / T 528-2009, and each sample is tested 3 times, the average value is taken, and the test results are filled in Table 1.
[0071] (3) The sample is applied to the vortex square process, and the apron is detected for 30-50 days, and the test results are filled in Table 1.
[0072] Table 1 Performance test results of Examples 1-16 and Comparative Examples 1-2 Test item Static adhesion rate / % Tensile property / Mpa Anti-entangling effect / 30-50 days Example 1 0.44 22.0 Less oil content in the apron, good anti-entangling effect Example 2 0.43 22.1 Less oil content in the apron, good anti-entangling effect Example 3 0.28 24.4 Less oil content in the apron, good anti-entangling effect Example 4 0.29 24.5 Less oil content in the apron, good anti-entangling effect Example 5 0.26 24.8 Less oil content in the apron, good anti-entangling effect Example 6 0.31 24.0 Less oil content in the apron, good anti-entangling effect Example 7 0.30 24.1 Less oil content in the apron, good anti-entangling effect Example 8 0.31 24.1 Less oil content in the apron, good anti-entangling effect Example 9 0.32 23.9 Less oil content in the apron, good anti-entangling effect Example 10 0.34 23.4 Less oil content in the apron, good anti-entangling effect Example 11 0.34 23.6 Less oil content in the apron, good anti-entangling effect Example 12 0.36 23.1 Less oil content in the apron, good anti-entangling effect Example 13 0.38 22.7 Less oil content in the apron, good anti-entangling effect Example 14 0.31 23.7 Less oil content in the apron, good anti-entangling effect Example 15 0.30 23.8 Less oil content in the apron, good anti-entangling effect Example 16 0.50 21.4 More oil content in the apron, general anti-entangling effect Comparative Example 1 0.54 20.4 More oil content in the apron, general anti-entangling effect Comparative Example 2 0.52 20.7 More oil content in the apron, general anti-entangling effect As can be seen from Table 1, the static adhesion rates of Examples 3-5 are all below 0.29%, indicating that the apron treated by the present application has good anti-static performance. The tensile performance of Examples 3-5 is above 24.4 Mpa, indicating that the apron treated by the present application has good tensile performance. The oil content of the apron is low and the anti-winding effect is good when Examples 1-5 are used for 30-50 days, indicating that the apron treated by the present application has good stability.
[0073] In Examples 6 and 7, the mass ratio between polyhexanedioic acid-1,4-butanediol and octadecylamine polyoxyethylene ether in the preparation of the anti-static oligomer is not within the range defined by the present application. When the content of octadecylamine polyoxyethylene ether is too low or too high, it is difficult to interact with the system stably, which reduces the adhesion performance of the system as a whole, and thus the stability is reduced, affecting the overall performance of the prepared anti-winding apron.
[0074] The mass fraction of dipentaerythritol hexaacrylate in the antistatic oligomer in Examples 8 and 9 is not within the range defined in the present application, when the content of dipentaerythritol hexaacrylate is too low, the content of carbon-carbon double bond is difficult to further improve, the crosslinking density of the composite coating is difficult to improve, and therefore the stability is decreased; when the content of dipentaerythritol hexaacrylate is too high, the crosslinking density of the composite coating is too large, the brittleness is too large, and the overall stability of the system is affected, and therefore the performance of Examples 8 and 9 is decreased.
[0075] In Examples 10 and 11, the mass ratio between the carbon nanotube and the alumina is not within the range defined in the present application, when the content of 3-aminopropyl triethoxysilane is too low, it is difficult to form a stable bridge, the connection performance between the alumina and the carbon nanotube is decreased, the carbon nanotube and the alumina are aggregated in the system, and the overall stability of the system is affected; when the content of 3-aminopropyl triethoxysilane is too high, the overall viscosity of the system is too large, the grafting stability is decreased, and the overall stability of the modified alumina prepared is affected, and therefore the performance of Examples 10 and 11 is decreased.
[0076] In Example 12, no carbon nanotube is added in the preparation of the modified alumina, and the modified alumina without carbon nanotube is difficult to withstand more stress, and is difficult to play a synergistic role in improving the overall stability of the system, and therefore the performance of Example 12 is decreased.
[0077] In Example 13, the modified alumina is replaced by ordinary alumina, and the alumina without silane coupling agent treatment is difficult to uniformly disperse in the system and is aggregated, and the stability of the system is affected, and the performance is decreased.
[0078] In Comparative Example 1, no light treatment is performed, and it is difficult to further change the overall activity of the composite coating, and the coating is difficult to more uniformly penetrate into the apron body, and therefore the stability of the composite coating is decreased.
[0079] In Comparative Example 2, no standing treatment is performed, and the absorption performance and uniformity of the coating are decreased, and therefore the performance of Comparative Example 2 is decreased.
[0080] The specific embodiments are merely an explanation of the present application, and are not a limitation of the present application, and through the above description, relevant personnel can make various changes and modifications without departing from the technical concept of the present application. The technical scope of the present application is not limited to the content in the specification, and must be determined according to the scope of the claims.
Claims
1. An anti-tangling apron suitable for eddy spinning process, characterized in that: The device includes a rubber band body and a composite coating. The composite coating is formed by applying a composite coating to the surface of the rubber band body. The composite coating includes component A and component B. Component A includes dichloromethane and phenyl 3-isocyanate, and component B includes trichloroethylene.
2. The anti-tangling apron suitable for eddy spinning process according to claim 1, characterized in that: The mass ratio of component A to component B is 1:(3-6).
3. The anti-tangle apron suitable for eddy spinning process according to claim 1, characterized in that: Component A further includes antistatic oligomers, the raw materials of which include poly(1,4-butanediol adipate), octadecylamine polyoxyethylene ether, isophorone diisocyanate, 1,4-butanediol and p-hydroxyphenethyl ether.
4. The anti-tangling apron suitable for vortex spinning process according to claim 3, characterized in that: The antistatic oligomer was prepared by the following method: Poly(1,4-butanediol adipate), octadecylamine polyoxyethylene ether, and 1,4-butanediol were mixed, heated, and stirred. Dibutyltin dilaurate was then added to react and a prepolymer was obtained. 1,4-Butanediol was added to the prepolymer to react. After the reaction, pentaerythritol triacrylate and dipentaerythritol hexaacrylate were added to react and a polyurethane system was obtained. Glacial acetic acid was added to the polyurethane system, and a neutralization reaction was carried out to obtain an antistatic oligomer.
5. The anti-tangling apron suitable for eddy spinning process according to claim 4, characterized in that: The mass ratio between the octadecylamine polyoxyethylene ether and poly(1,4-butanediol adipate) is 1:(6-8).
6. The anti-tangling apron suitable for eddy spinning process according to claim 4, characterized in that: The mass fraction of dipentaerythritol hexaacrylate in the antistatic oligomer raw material is 13-17%.
7. The anti-tangling apron suitable for eddy spinning process according to claim 1, characterized in that: Component B also includes modified alumina, the modified alumina raw materials including alumina, carbon nanotubes and 3-aminopropyltriethoxysilane.
8. The anti-tangling apron suitable for eddy spinning process according to claim 7, characterized in that: The modified alumina was prepared by the following method: Carbon nanotubes, ethanol, and water were mixed and dispersed to obtain a carbon nanotube dispersion. 3-aminopropyltriethoxysilane, ethanol, and water were mixed and stirred to obtain a silane solution. Alumina was added to the carbon nanotube dispersion and stirred. The silane solution was added during the stirring process. The mixture was ultrasonically dispersed to obtain a mixture. After centrifugation, washing, and drying, modified alumina was obtained.
9. An anti-tangle apron suitable for eddy spinning process according to claim 8, characterized in that: The mass ratio of the carbon nanotubes, 3-aminopropyltriethoxysilane, and alumina is 1:(5.2-5.8):
4.
10. A method for treating anti-tangle aprons applicable to eddy spinning processes as described in any one of claims 1-9, characterized in that: Includes the following steps: (1) Coating: Fix the rubber ring body to the grinding machine and apply the composite coating evenly to the surface of the rubber ring body to obtain the treated rubber ring; (2) Light treatment: The treated rubber ring is subjected to ultraviolet light irradiation to obtain an irradiated rubber ring. During the treatment, the rubber ring rotates uniformly in the irradiated area. The timing starts when the rubber ring body coated with composite coating enters the irradiated area and ends when it leaves the irradiated area. The travel distance is 60cm, the irradiation time is 1-2min, and the irradiation temperature is 50-60℃. (3) Static treatment: After the rubber ring is exposed to light, it is placed in the dark and allowed to stand until the coating is fully absorbed, thus obtaining the anti-tangling rubber ring.