阅读说明：本技术 一种延长电缆寿命的线漆 (Wire paint for prolonging service life of cable ) 是由 潘磊 高帅 崔斌 张文钢 张公卓 熊硕 于 2019-11-28 设计创作，主要内容包括：本发明涉及电缆线漆领域,提出了一种延长电缆寿命的线漆,所述电缆线漆由以下重量份数的成分组成：聚乙烯醇缩丁醛20-40份、聚氨酯乳液5-10份、聚酰胺1-3份、纳米改性材料3-6份、二乙醇0.1-1份、乙醇4-8份、三乙胺0.1-1份；所述纳米改性材料为铝、硅、钛、锶、钇、钒、锆、镍、钡、铈、镨的纳米氧化物中的至少一种；所述纳米改性材料经过表面特殊处理或未经过表面特殊处理,可以对电缆线起到整体包覆作用,加强耐磨、耐腐蚀、电绝缘性能,延长使用寿命,而且制造成本低,制造过程绿色环保,对环境无污染。(The invention relates to the field of cable paint, and provides cable paint for prolonging the service life of a cable, which comprises the following components in parts by weight: 20-40 parts of polyvinyl butyral, 5-10 parts of polyurethane emulsion, 1-3 parts of polyamide, 3-6 parts of nano modified material, 0.1-1 part of diethanol, 4-8 parts of ethanol and 0.1-1 part of triethylamine; the nano modified material is at least one of nano oxides of aluminum, silicon, titanium, strontium, yttrium, vanadium, zirconium, nickel, barium, cerium and praseodymium; the nano modified material can play a role in integrally coating the cable after surface special treatment or without surface special treatment, enhances the wear resistance, corrosion resistance and electrical insulation performance, prolongs the service life, and has low manufacturing cost, green and environment-friendly manufacturing process and no pollution to the environment.)

1. The wire paint for prolonging the service life of a cable is characterized by comprising the following components in parts by weight:

20-40 parts of polyvinyl butyral, 5-10 parts of polyurethane emulsion, 1-3 parts of polyamide, 3-6 parts of nano modified material, 0.1-1 part of diethanol, 4-8 parts of ethanol and 0.1-1 part of triethylamine;

the nano modified material is at least one of nano oxides of aluminum, silicon, titanium, strontium, yttrium, vanadium, zirconium, nickel, barium, cerium and praseodymium;

the nano modified material is subjected to special surface treatment or not.

2. The wire enamel according to claim 1, wherein the nano-modification material is at least one of nano-alumina, nano-silica, nano-titania, nano-yttria and nano-zirconia.

3. The wire enamel according to claim 1, wherein the nano modified material is surface-specifically treated.

4. The wire enamel according to claim 3, wherein the nano-modification material is surface-specifically treated with a coupling agent.

5. The wire paint capable of prolonging the service life of a cable according to claim 4, wherein the coupling agent is prepared by compounding an A-type coupling agent and a B-type coupling agent, and the mass ratio of the A-type coupling agent to the B-type coupling agent is 1-5: 1-5;

the class a coupling agents include: vinyltrimethoxysilane, vinyltriethoxysilane, vinyltris (. beta. -methoxyethoxy) silane;

the class B coupling agents include: n- (beta-aminoethyl) -gamma-aminopropyltriethoxysilane, N-beta- (aminoethyl) -gamma-aminopropyltrimethoxysilane, 3-aminopropyltrimethoxysilane, gamma-mercaptopropyltriethoxysilane.

6. The wire enamel for prolonging the service life of a cable according to claim 4, wherein the method for performing surface special treatment on the nano modified material by using the coupling agent comprises the following steps:

s1: soaking the nanometer modified material in acetone for 5-10 hr, filtering, and oven drying at 70-80 deg.C;

s2: placing the dried nano modified material in a plasma processing device, and carrying out low-temperature radio frequency oxygen plasma processing, wherein the power of the plasma processing device is 200-400W, the air pressure is 30-50Pa, the oxygen flow rate is 10-15sccm, the temperature is 0-5 ℃, and the time is 10-30 min;

s3: adding coupling agent into solution obtained by mixing ethanol and water according to a certain volume ratio, performing ultrasonic oscillation for 5-15min, adding nanometer modified material, stirring, heating to 30-40 deg.C, treating for 30-60min, filtering, and drying.

7. The wire enamel according to claim 6, wherein the volume ratio of the coupling agent to the solution in S3 is 1: 95-100.

8. The wire enamel for prolonging the service life of a cable according to claim 6, wherein the volume ratio of ethanol to water in S3 is 80-100: 1.

9. the wire enamel for extending cable life according to any one of claims 1 to 8, prepared by the following method:

s1: dividing ethanol into 5 parts;

s2: adding polyvinyl butyral into a stirring kettle, stirring at room temperature for 10-30min, adding 1 part of ethanol, and further stirring at room temperature for 30-60min to obtain a mixed solution A;

s3: adding the polyurethane emulsion and polyamide into a stirring kettle, stirring at room temperature for 10-30min, adding the 2 nd part of ethanol, and then continuing stirring at room temperature for 30-60min to obtain a mixed solution B;

s4: mixing the mixed solution A, the mixed solution B and the 3 rd part of ethanol, and stirring at room temperature for 20-40min to obtain a mixed solution C;

s5: mixing the nanometer modified material and the 4 th part of ethanol, performing ultrasonic oscillation treatment to prepare a suspension, dropwise adding the suspension into the mixed solution C, and stirring at room temperature for 5-10min after dropwise adding to obtain a mixed solution D;

s6: mixing diethanol, triethylamine and 5 th part of ethanol, stirring to obtain a uniform solution, adding into the mixed solution D, stirring at room temperature, measuring the viscosity every 5min, stopping stirring when the viscosity is 25-30s, and subpackaging.

10. The wire enamel for prolonging the service life of a cable according to claim 9, wherein the volume ratio of 1 st, 2 nd, 3 rd, 4 th and 5 th parts of ethanol is 2: 2: 2: 1: 1.

Technical Field

The invention relates to the field of cable paint, in particular to cable paint for prolonging the service life of a cable.

Background

The cable wire is an electromagnetic wire which is made by wrapping natural filaments or fiber filaments (nylon, polyester fibers, natural filaments, self-adhesive filaments and the like) outside a lead or an enameled stranded wire to form an insulating layer. The yarn is distinguished from a yarn covering using cotton yarn as an insulating layer. The cable conductor has the same characteristics of an enameled stranded wire, and has the advantages of increasing the insulation strength, reducing the surface temperature and improving the Q value compared with a bare wire. The high-power inductor is widely applied to antenna inductors, high-power lighting systems, video equipment, ultrasonic equipment, high-frequency inductors, transformers and the like.

The cable is an important electric insulating material, and the cable mainly utilizes an upper insulating layer (nylon, polyester fiber, natural silk, self-adhesive silk and the like) to generate a good insulating layer between the wires in the winding so as to maintain the normal operation of the whole workpiece equipment. The insulating layer is an indispensable component applied to power equipment, so that the improvement of the wear resistance and corrosion resistance of the insulating layer is important for the cable line.

The paint layer for the cable line in the market at present mainly adopts a composite coating of polyimide or polyamide-imide and other polymers, the coating has excellent heat resistance and cold medium resistance, but the cost is high, the film forming process of the composite coating is complex, the wear resistance is poor, the coating performance is reduced after long-time use, and the protective performance is also reduced.

Chinese patent CN110256954A discloses a modified polyesterimide wire enamel and a preparation method thereof, wherein m-cresol DMT and ethylene glycol, glycerol, trimethylolpropane and mosaic are subjected to ester exchange reaction under catalysis of n-butyl titanate, trimellitic anhydride, 4 '-diaminodiphenylmethane and 4,4' -diaminodiphenyl ether are added for imidization reaction after the ester exchange reaction is finished, m-cresol and phenol as solvents are added for dilution to obtain a resin solution after the imidization reaction is finished, and n-butyl titanate, phenolic resin, a flatting agent and xylene are added for blending the wire enamel. The preparation method is complex, and the use of 4,4 '-diaminodiphenylmethane and 4,4' -diaminodiphenyl ether is easy to cause pollution and is not beneficial to environmental protection.

Disclosure of Invention

Aiming at the problems, the inventor researches and invents the cable paint for the outer layer of the cable, can play a role in integrally coating the cable, enhances the wear resistance, corrosion resistance and electrical insulation performance, prolongs the service life, and has the advantages of low manufacturing cost, green and environment-friendly manufacturing process and no pollution to the environment.

In order to achieve the above object, the present invention adopts the following technical solutions:

the cable paint capable of prolonging the service life of a cable is composed of the following components in parts by weight:

20-40 parts of polyvinyl butyral, 5-10 parts of polyurethane emulsion, 1-3 parts of polyamide, 3-6 parts of nano modified material, 0.1-1 part of diethanol, 4-8 parts of ethanol and 0.1-1 part of triethylamine;

the nano modified material is at least one of nano oxides of aluminum, silicon, titanium, strontium, yttrium, vanadium, zirconium, nickel, barium, cerium and praseodymium;

the nano modified material is subjected to special surface treatment or not.

Further, the nano modified material is at least one of nano aluminum oxide, nano silicon oxide, nano titanium oxide, nano yttrium oxide and nano zirconium oxide.

Further, the nano modified material is subjected to surface special treatment.

Further, the nano modified material is subjected to special surface treatment by a coupling agent.

Further, the coupling agent is formed by compounding an A-type coupling agent and a B-type coupling agent, wherein the mass ratio of the A-type coupling agent to the B-type coupling agent is 1-5: 1-5;

the class a coupling agents include: vinyltrimethoxysilane, vinyltriethoxysilane, vinyltris (. beta. -methoxyethoxy) silane;

the class B coupling agents include: n- (beta-aminoethyl) -gamma-aminopropyltriethoxysilane, N-beta- (aminoethyl) -gamma-aminopropyltrimethoxysilane, 3-aminopropyltrimethoxysilane, gamma-mercaptopropyltriethoxysilane.

Further, the method for performing surface special treatment on the nano modified material by using the coupling agent comprises the following steps:

s1: soaking the nanometer modified material in acetone for 5-10 hr, filtering, and oven drying at 70-80 deg.C;

s2: placing the dried nano modified material in a plasma processing device, and carrying out low-temperature radio frequency oxygen plasma processing, wherein the power of the plasma processing device is 200-400W, the air pressure is 30-50Pa, the oxygen flow rate is 10-15sccm, the temperature is 0-5 ℃, and the time is 10-30 min;

s3: adding coupling agent into solution obtained by mixing ethanol and water according to a certain volume ratio, performing ultrasonic oscillation for 5-15min, adding nanometer modified material, stirring, heating to 30-40 deg.C, treating for 30-60min, filtering, and drying.

Further, the volume ratio of the coupling agent to the solution in S3 is 1: 95-100.

Further, the volume ratio of ethanol to water in S3 is 80-100: 1.

the preparation method of the cable paint comprises the following steps:

s1: dividing ethanol into 5 parts;

s2: adding polyvinyl butyral into a stirring kettle, stirring at room temperature for 10-30min, adding 1 part of ethanol, and further stirring at room temperature for 30-60min to obtain a mixed solution A;

s3: adding the polyurethane emulsion and polyamide into a stirring kettle, stirring at room temperature for 10-30min, adding the 2 nd part of ethanol, and then continuing stirring at room temperature for 30-60min to obtain a mixed solution B;

s4: mixing the mixed solution A, the mixed solution B and the 3 rd part of ethanol, and stirring at room temperature for 20-40min to obtain a mixed solution C;

s5: mixing the nanometer modified material and the 4 th part of ethanol, performing ultrasonic oscillation treatment to prepare a suspension, dropwise adding the suspension into the mixed solution C, and stirring at room temperature for 5-10min after dropwise adding to obtain a mixed solution D;

s6: mixing diethanol, triethylamine and 5 th part of ethanol, stirring to obtain a uniform solution, adding into the mixed solution D, stirring at room temperature, measuring the viscosity every 5min, stopping stirring when the viscosity is 25-30s, and subpackaging.

Further, the volume ratio of the 1 st, 2 nd, 3 rd, 4 th and 5 th parts of ethanol is 2: 2: 2: 1: 1.

due to the adoption of the technical scheme, the invention has the beneficial effects that:

the paint liquid of the cable paint can be completely immersed into the inner layer of the cable, so that the coating capability of the cable is enhanced, and the service life is prolonged; the polyvinyl butyral has excellent flexibility and flexibility, good intermiscibility and active hydroxyl, so that the polyvinyl butyral resin is ideally combined with other resins to be used as a paint binder; when mixed with polyurethanes, polyamides, polyvinyl butyral acts as a polymeric plasticizer, improving flexibility and adhesion to metals.

The addition of polyamide makes the cable cladding layer have better adhesive force, and the cable cladding layer has the characteristics of high softening point, heat resistance, low friction coefficient, wear resistance, self-lubricating property, good shock absorption property and electrical insulating property, self-extinguishing property and the like, thereby obviously improving the physical and chemical properties of the cable.

In addition, the polyurethane emulsion and the polyamide are added, the polyamide is hydrophilic, the main chain of the polyurethane molecule is in a molecular chain formed by inlaying and combining a flexible chain segment and a rigid chain segment, the polyurethane molecule is insoluble in water, has intermiscibility and has the characteristics of high strength, abrasion resistance, tear resistance and good flexibility, the polyamide and the polyurethane emulsion are cooperatively used to form a core-shell structure, and the strength of a paint layer is greatly improved;

the nano modified material is added as a reinforcing component, so that the wear resistance and corrosion resistance of a paint layer can be improved, the traditional nano material addition also has the functions of reinforcing and toughening, but due to poor compatibility, the nano material is easy to agglomerate and settle, so that the distribution is not uniform, and the subsequent coating is not facilitated, the low-temperature radio frequency oxygen plasma treatment can generate a plurality of oxygen-containing active groups such as hydroxyl, carboxyl and the like on the surface of the nano modified material, and then the nano modified material is treated by utilizing a compound coupling agent, so that the nano modified material is well connected with inorganic groups and organic groups on the surface of the coupling agent, and has better interface performance, the inventor researches and discovers the cable paint for the outer layer of the cable, and the cable paint can also have the function of integrally coating the cable, so that the wear resistance, the corrosion resistance and the electric insulation performance are enhanced, the service, the manufacturing process is green and environment-friendly, and has no pollution to the environment.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.