CN110752056B - Temperature sensing color-changing braided cable - Google Patents

Temperature sensing color-changing braided cable Download PDF

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Publication number
CN110752056B
CN110752056B CN201910852687.4A CN201910852687A CN110752056B CN 110752056 B CN110752056 B CN 110752056B CN 201910852687 A CN201910852687 A CN 201910852687A CN 110752056 B CN110752056 B CN 110752056B
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color
changing
temperature
cable
mixture
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CN110752056A (en
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黄晖
左贵明
向志林
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Dongguan Kailai Electronics Co ltd
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Dongguan Yingtong Wire Co Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1865—Sheaths comprising braided non-metallic layers
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/04—Pigments
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/12—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance
    • G01K11/16—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance of organic materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/02—Disposition of insulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
    • H01B7/183—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of an outer sheath
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fireproofing Substances (AREA)
  • Artificial Filaments (AREA)

Abstract

The invention relates to the technical field of thermosensitive color-changing cables, in particular to a thermosensitive color-changing braided cable which comprises a plurality of conductive cables with insulating layers, a flame-retardant layer, an insulating sleeve and a color-changing fiber protective layer, wherein the conductive cables are mutually twisted and arranged in the insulating sleeve, the flame-retardant layer is filled in the insulating sleeve, and the color-changing fiber protective layer is braided on the outer surface of the insulating sleeve. According to the cable disclosed by the invention, the color-changing fiber protective layer is woven on the outer layer of the cable, and when the external temperature changes, the cold and hot reactions are realized through the color change of the woven layer coated outside the cable, so that a user is reminded of avoiding short circuit or open circuit and even fire accidents, and the cable also has the function of reminding the user of preventing cold or sunstroke.

Description

Temperature sensing color-changing braided cable
Technical Field
The invention relates to the technical field of thermochromic cables, in particular to a thermochromic braided cable.
Background
The cable has the effect of transmission signal and transmission electric energy, prior art's cable generally does not all possess the function of discolouing, can't in time change when the cable high temperature damages, in addition in installation and long-term use, probably because external force damage, insulating and sheath are ageing, long-term load operation and environment and temperature etc. cause the cable to take place trouble such as electric leakage or short circuit, and because the distance that the cable laid is longer, some are still in the high altitude, consequently difficult accurate promptly discovers trouble position, also caused great difficulty for detecting repair work.
The braided cable in the existing cable can not sense the change of the environmental temperature, when a user wears the braided cable from the inside to the outside in hot summer or cold winter, the common earphone braided cable can not identify the change of the indoor and outdoor temperature, but the color-changing braided cable can identify the change of the temperature through the color change to remind the user to prevent cold or sunstroke.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention aims to provide the temperature-sensing color-changing braided cable, wherein the color-changing fiber protective layer is braided on the outer layer of the cable, and when the external temperature changes, the color of the braided layer wrapped outside the cable is changed to realize cold and hot reactions, so that a user is reminded of avoiding short circuit or open circuit and even fire accidents, and the temperature-sensing color-changing braided cable also has the function of reminding the user of preventing cold or sunstroke.
The purpose of the invention is realized by the following technical scheme: the utility model provides a cable is woven to temperature sensing discolours, includes a plurality of electrically conductive cables that have the insulating layer, fire-retardant layer, insulating cover and the fibre protective layer that discolours, electrically conductive cable transposition each other and set up in insulating cover, fire-retardant layer is filled in insulating cover, discolour the fibre protective layer weave in the surface of insulating cover.
According to the invention, the cable is provided with the three-layer structure of the flame-retardant layer, the insulating sleeve and the color-changing fiber protective layer which are sequentially coated, so that short circuit or open circuit of the cable and even fire accidents can be well avoided in the use process of the cable, the insulating layer is coated on the outer surface of the conductive cable, and in addition, the color-changing fiber protective layer is woven on the outer layer of the cable, when the external temperature changes, the cold and hot reactions are realized through the color change of the woven layer coated outside the cable, so that the cold and hot prevention effect of a user is reminde; the color-changing fiber adopted in weaving is prepared by compounding the dyeing process and related dyes, has very sensitive color-changing effect on the change of the external environment temperature, has good wear resistance and ageing resistance,
preferably, the color-changing fiber protective layer is formed by arranging, combining and weaving 4-24 color-changing fibers in a way of going horse blocks by 10-20 fibers towards left and 4-10 fibers towards right. According to the invention, 10-20 leftwards and 4-10 rightwards are arranged, combined and woven in a runner spindle mode when the color-changing fiber protective layer is woven, so that the quality and the wear resistance of the color-changing fiber protective layer are further improved, the defect of weaving fibers by the conventional cable is further avoided, and the various performances of the prepared cable are further improved.
Preferably, the color-changing fiber protective layer is made of color-changing fibers, and the color-changing fibers comprise the following raw materials in parts by weight:
Figure BDA0002197330520000021
each part of the temperature-sensitive color-changing pigment is at least one of 2- (2-4-dimethylanilino) -3-methyl-6-diethylaminofluorane, 3, 6-diethoxyfluorane and mono salicylaldehyde Schiff base; more preferably, the temperature-sensitive color-changing pigment is a mixture of 2- (2-4-dimethylanilino) -3-methyl-6-diethylaminofluorane, 3, 6-diethoxyfluorane and monosalicylaldehyde Schiff base in a weight ratio of 0.8-1.2:0.4-0.8: 0.1-0.5.
The polyester fiber adopted by the invention has good crease resistance and shape retention, and higher strength and elasticity recovery capability, and can enable the polyester fiber material to have high polarity and reactivity under the condition that a compatilizer introduces a strong polar reaction group, thereby being beneficial to low-temperature dyeing with temperature-sensitive color-changing pigment and temperature-sensitive aqueous emulsion; in addition, the addition of the methyl methacrylate can not only reduce the glass transition temperature of the polyester fiber, but also form a molecular layer film with the temperature-sensitive color-changing pigment molecules dissolved in the methyl methacrylate, so that the temperature-sensitive color-changing pigment molecules can be favorably diffused into the polyester fiber, the dye uptake of the polyester fiber and the temperature-sensitive color-changing pigment under the low-temperature condition is further improved, and the color-changing effect and the durability of the prepared color-changing fiber are improved; the 2, 2-thiobis (4-tert-octylphenol) n-butylamine nickel salt serving as an anti-aging agent can assist in improving the anti-aging performance of the prepared color-changing fiber, so that the color-changing fiber is more suitable for various environments, and the durability and the persistence of the prepared cable are further prolonged; the temperature-sensitive color-changing pigment can reach a temperature-changing color development range of 4-50 ℃, so that the color-changing color development range of the prepared color-changing fiber is further improved, and color development early warning is facilitated.
Preferably, each part of the temperature-sensing aqueous emulsion is prepared by mixing and stirring 40-90 parts of waterborne hydroxyacrylic acid, 1-10 parts of polyorganosiloxane and 10-30 parts of pure water at the temperature of 60-70 ℃ for 30-60 min; more preferably, the particle size of the temperature-sensitive aqueous emulsion is 1-10 um.
The temperature-sensitive aqueous emulsion adopted by the invention is prepared by adopting the raw materials and the preparation method, and the prepared temperature-sensitive aqueous emulsion has small particle size, can well assist the temperature-sensitive color-changing pigment to be fully dispersed into the polyester fiber, so that the prepared color-changing fiber realizes color change within the range of 4-50 ℃, and the color-changing effect is more obvious when the temperature difference is larger.
Preferably, each part of the diluent is a mixture of n-butanol and ethanol according to the weight ratio of 0.8-1.2: 0.4-0.8. Each part of the compatilizer is at least two of maleic anhydride, acrylic acid and epoxy anhydride; more preferably, the compatilizer is a mixture of maleic anhydride, acrylic acid and epoxy anhydride in a weight ratio of 0.8-1.2:0.4-0.8: 0.6-1.0.
The diluent has excellent diluting and dissolving effects of the specific raw materials of the n-butanol and the ethanol, and can well promote mutual dissolution and diffusion among the temperature-sensing aqueous emulsion, the temperature-sensing color-changing pigment and the compatilizer, so that the coordination effect between the temperature-sensing aqueous emulsion and the temperature-sensing color-changing pigment can be further promoted. Acrylic acid adopted in the compatilizer can react with alcohol in the diluent to produce corresponding esters, so that the activity of the polyester fiber can be well activated, the polyester fiber can be better dyed, and meanwhile, the plasticity of the polyester fiber can be enhanced; the added epoxy anhydride has good compatibility, small mixed material viscosity, low curing reaction thermal peak, small shrinkage rate, good size stability, high curing strength, good heat resistance, corrosion resistance and ageing resistance, and the mixture B can be reduced in the step 3) to reduce the curing reaction activation energy, so that the curing temperature is reduced, the curing rate is increased, and the performance of the prepared color-changing fiber is improved.
Preferably, each part of the antioxidant is at least two of an antioxidant 1010, an antioxidant 168, an antioxidant B225 and an antioxidant CA-1071; more preferably, the antioxidant is a mixture of the antioxidant 1010, the antioxidant 168 and the antioxidant CA-1071 in a weight ratio of 0.6-1.0:0.4-0.8: 0.8-1.2. Each of the light stabilizers is at least two of a light stabilizer 119, a light stabilizer 2020, a light stabilizer 944 and a light stabilizer 783; more preferably, the light stabilizer is a mixture of light stabilizer 119, light stabilizer 2020 and light stabilizer 944 in a weight ratio of 0.4 to 0.8:0.6 to 1.0:0.8 to 1.2.
The antioxidant 1010 has excellent antioxidant performance on polyester fibers and temperature-sensitive color-changing pigments, the antioxidant 1010 can effectively prevent thermal oxidation degradation of the color-changing fibers in a long-term aging process, the service life of the braided cable is further prolonged, and a synergistic effect can be achieved by using the antioxidant 1010 and the antioxidant CA-1071; the antioxidant 168 is an auxiliary antioxidant of the antioxidant 1010, is compounded with the main antioxidant 1010, has good synergistic effect, can effectively prevent the polyester fiber and the temperature-sensitive color-changing pigment from thermal degradation in the long-term aging process, and provides extra long-term protection for the braided cable. The adopted light stabilizer has good light stability in the dyeing process of the polyester fiber and the temperature-sensitive color-changing pigment, and shows a unique long-acting heat stabilization effect in the dyeing process of the polyester fiber, and meanwhile, the light stabilizer can enhance the chroma of the temperature-sensitive color-changing pigment and the temperature-sensitive water emulsion, so that the color-changing effect of the prepared color-changing fiber can be effectively improved, and the use of the safety and reliability of weaving cables is facilitated.
The color-changing fiber is prepared by the following steps:
1) adding the temperature-sensitive aqueous emulsion, the temperature-sensitive color-changing pigment and the compatilizer into the diluent according to the parts by weight, stirring uniformly, adding the antioxidant, and stirring for 30-60min to obtain a mixture A for later use;
2) adding polyester fiber into the mixture A obtained in the step 1), heating to 70-90 ℃, stirring for 60-120min, adding 2, 2-thiobis (4-tert-octylphenol) n-butylamine nickel salt and a light stabilizer, stirring for 30-60min, and preserving heat for 1-2h to obtain a mixture B for later use;
3) transferring the mixture B obtained in the step 2) to a solidifying device for cooling, solidifying and forming, and finally obtaining the color-changing fiber after passing through a melt-blown non-woven fabric production device.
The color-changing fiber prepared by the method has good temperature change performance, uniform color change, sensitive color change effect on the temperature change of the external environment, wear resistance and ageing resistance. And in the preparation process, the heating temperature in the step 2) needs to be strictly controlled to be 70-90 ℃, if the temperature is too high, part of the temperature-sensitive color-changing pigment is inactivated or the activity of the temperature-sensitive color-changing pigment is reduced, the early warning effect of the prepared braided cable is not facilitated, and if the temperature is too low, the dyeing rate of the polyester fiber is rapidly reduced, the dyeing of the polyester fiber is not facilitated, and the early warning effect of the prepared braided cable is reduced.
The invention has the beneficial effects that: in addition, the color-changing fiber protective layer is woven on the outer layer of the cable, and when the external temperature changes, the cold and hot reactions are realized through the color change of the woven layer coated outside the cable, so that the cold and hot protection or sunstroke prevention effect of a user is reminded; the color-changing fiber adopted in weaving is prepared by compounding the dyeing process and related dyes, has a sensitive color-changing effect on the change of the external environment temperature, and has good wear resistance and ageing resistance.
Drawings
Fig. 1 is a schematic cross-sectional view of a cable according to the invention.
The reference signs are: 1-conductive cable, 2-flame retardant layer, 3-insulating sleeve and 4-color-changing fiber protective layer.
Detailed Description
For the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and the accompanying fig. 1, and the description of the embodiments is not intended to limit the present invention.
Example 1
A temperature sensing color-changing braided cable comprises a plurality of conductive cables 1 with insulating layers, a flame-retardant layer 2, an insulating sleeve 3 and a color-changing fiber protective layer 4, wherein the color-changing fiber protective layer 4 is formed by arranging and combining 24 color-changing fibers in a way of going horse spindles through 14 fibers to the left and 10 fibers to the right; the conductive cables 1 are mutually twisted and combined in the insulating sleeve 3, the flame-retardant layer 2 is filled in the insulating sleeve 3, and the color-changing fiber protective layer 4 is woven on the outer surface of the insulating sleeve 3.
The color-changing fiber protective layer is made of color-changing fibers, and the color-changing fibers comprise the following raw materials in parts by weight:
Figure BDA0002197330520000051
each part of the temperature-sensitive color-changing pigment is a mixture consisting of 2- (2-4-dimethylanilino) -3-methyl-6-diethylaminofluorane, 3, 6-diethoxyfluorane and monosalicylaldehyde Schiff base according to the weight ratio of 0.8-1.2:0.4-0.8: 0.1-0.5.
Each part of the temperature-sensitive aqueous emulsion is prepared by mixing and stirring 40 parts of waterborne hydroxy acrylic acid, 1 part of polyorganosiloxane and 10 parts of pure water for 30min at the temperature of 60 ℃, and the particle size of the temperature-sensitive aqueous emulsion is 1 um.
Each part of the diluent is a mixture of n-butanol and ethanol according to the weight ratio of 0.8-1.2: 0.4-0.8. Each part of the compatilizer is a mixture of maleic anhydride, acrylic acid and epoxy anhydride according to the weight ratio of 0.8-1.2:0.4-0.8: 0.6-1.0.
Each part of the antioxidant is a mixture of an antioxidant 1010, an antioxidant 168 and an antioxidant CA-1071 in a weight ratio of 0.6-1.0:0.4-0.8: 0.8-1.2.
Each part of the light stabilizer is a mixture of the light stabilizer 119, the light stabilizer 2020 and the light stabilizer 944 in a weight ratio of 0.4-0.8:0.6-1.0: 0.8-1.2.
The color-changing fiber is prepared by the following steps:
1) adding the temperature-sensitive aqueous emulsion, the temperature-sensitive color-changing pigment and the compatilizer into the diluent according to the parts by weight, stirring uniformly, adding the antioxidant, and stirring for 30min to obtain a mixture A for later use;
2) adding polyester fiber into the mixture A obtained in the step 1), heating to 70-90 ℃, stirring for 60min, adding 2, 2-thiobis (4-tert-octylphenol) n-butylamine nickel salt and a light stabilizer, stirring for 30min, and preserving heat for 1h to obtain a mixture B for later use;
3) transferring the mixture B obtained in the step 2) to a solidifying device for cooling, solidifying and forming, and finally obtaining the color-changing fiber after passing through a melt-blown non-woven fabric production device.
Example 2
A temperature sensing color-changing braided cable comprises a plurality of conductive cables 1 with insulating layers, a flame-retardant layer 2, an insulating sleeve 3 and a color-changing fiber protective layer 4, wherein the color-changing fiber protective layer 4 is formed by braiding 24 color-changing fibers in a mode of a spindle walking horse through 19 leftward and 9 rightward permutation and combination; the conductive cables 1 are mutually twisted and combined in the insulating sleeve 3, the flame-retardant layer 2 is filled in the insulating sleeve 3, and the color-changing fiber protective layer 4 is woven on the outer surface of the insulating sleeve 3.
The color-changing fiber protective layer is made of color-changing fibers, and the color-changing fibers comprise the following raw materials in parts by weight:
Figure BDA0002197330520000061
each part of the temperature-sensitive color-changing pigment is a mixture consisting of 2- (2-4-dimethylanilino) -3-methyl-6-diethylaminofluorane, 3, 6-diethoxyfluorane and monosalicylaldehyde Schiff base according to the weight ratio of 0.9:0.5: 0.2.
Each part of the temperature-sensitive aqueous emulsion is prepared by mixing and stirring 55 parts of waterborne hydroxy acrylic acid, 4 parts of polyorganosiloxane and 15 parts of pure water for 38min at 63 ℃, and the particle size of the temperature-sensitive aqueous emulsion is 1 um.
Each part of the diluent is a mixture of n-butanol and ethanol according to the weight ratio of 0.9: 0.5. Each part of the compatilizer is a mixture of maleic anhydride, acrylic acid and epoxy anhydride according to the weight ratio of 0.9:0.5: 0.7.
Each part of the antioxidant is a mixture of the antioxidant 1010, the antioxidant 168 and the antioxidant CA-1071 according to the weight ratio of 0.7:0.5: 0.9.
Each part of the light stabilizer is a mixture of the light stabilizer 119, the light stabilizer 2020 and the light stabilizer 944 in a weight ratio of 0.5:0.7: 0.9.
The color-changing fiber is prepared by the following steps:
1) adding the temperature-sensitive aqueous emulsion, the temperature-sensitive color-changing pigment and the compatilizer into the diluent according to the parts by weight, stirring uniformly, adding the antioxidant, and stirring for 38min to obtain a mixture A for later use;
2) adding polyester fiber into the mixture A obtained in the step 1), heating to 75 ℃, stirring for 75min, adding 2, 2-thiobis (4-tert-octylphenol) n-butylamine nickel salt and a light stabilizer, stirring for 38min, and preserving heat for 1.3h to obtain a mixture B for later use;
3) transferring the mixture B obtained in the step 2) to a solidifying device for cooling, solidifying and forming, and finally obtaining the color-changing fiber after passing through a melt-blown non-woven fabric production device.
Example 3
A temperature sensing color-changing braided cable comprises a plurality of conductive cables 1 with insulating layers, a flame-retardant layer 2, an insulating sleeve 3 and a color-changing fiber protective layer 4, wherein the color-changing fiber protective layer 4 is formed by braiding 24 color-changing fibers in a horse-riding spindle mode through 15 leftward and 9 rightward arranging and combining; the conductive cables 1 are mutually twisted and combined in the insulating sleeve 3, the flame-retardant layer 2 is filled in the insulating sleeve 3, and the color-changing fiber protective layer 4 is woven on the outer surface of the insulating sleeve 3.
The color-changing fiber protective layer is made of color-changing fibers, and the color-changing fibers comprise the following raw materials in parts by weight:
Figure BDA0002197330520000071
each part of the temperature-sensitive color-changing pigment is a mixture consisting of 2- (2-4-dimethylanilino) -3-methyl-6-diethylaminofluorane, 3, 6-diethoxyfluorane and monosalicylaldehyde Schiff base according to the weight ratio of 1.0:0.6: 0.3.
Each part of the temperature-sensitive aqueous emulsion is prepared by mixing and stirring 65 parts of waterborne hydroxy acrylic acid, 6 parts of polyorganosiloxane and 20 parts of pure water for 45min at the temperature of 65 ℃, and the particle size of the temperature-sensitive aqueous emulsion is 5 um.
Each part of the diluent is a mixture of n-butanol and ethanol according to the weight ratio of 1.0: 0.6. Each part of the compatilizer is a mixture of maleic anhydride, acrylic acid and epoxy anhydride according to the weight ratio of 1.0:0.6: 0.8.
Each part of the antioxidant is a mixture of an antioxidant 1010, an antioxidant 168 and an antioxidant CA-1071 in a weight ratio of 0.8:0.6: 1.0.
Each part of the light stabilizer is a mixture of the light stabilizer 119, the light stabilizer 2020 and the light stabilizer 944 in a weight ratio of 0.6:0.8: 1.0.
The color-changing fiber is prepared by the following steps:
1) adding the temperature-sensitive aqueous emulsion, the temperature-sensitive color-changing pigment and the compatilizer into the diluent according to the parts by weight, stirring uniformly, adding the antioxidant, and stirring for 45min to obtain a mixture A for later use;
2) adding polyester fiber into the mixture A obtained in the step 1), heating to 80 ℃, stirring for 90min, adding 2, 2-thiobis (4-tert-octylphenol) n-butylamine nickel salt and a light stabilizer, stirring for 45min, and preserving heat for 1.5h to obtain a mixture B for later use;
3) transferring the mixture B obtained in the step 2) to a solidifying device for cooling, solidifying and forming, and finally obtaining the color-changing fiber after passing through a melt-blown non-woven fabric production device.
Example 4
A temperature sensing color-changing braided cable comprises a plurality of conductive cables 1 with insulating layers, a flame-retardant layer 2, an insulating sleeve 3 and a color-changing fiber protective layer 4, wherein the color-changing fiber protective layer 4 is formed by braiding 24 color-changing fibers in a mode of a spindle walking horse through 20 leftward and 4 rightward permutation and combination; the conductive cables 1 are mutually twisted and combined in the insulating sleeve 3, the flame-retardant layer 2 is filled in the insulating sleeve 3, and the color-changing fiber protective layer 4 is woven on the outer surface of the insulating sleeve 3.
The color-changing fiber protective layer is made of color-changing fibers, and the color-changing fibers comprise the following raw materials in parts by weight:
Figure BDA0002197330520000081
each part of the temperature-sensitive color-changing pigment is a mixture consisting of 2- (2-4-dimethylanilino) -3-methyl-6-diethylaminofluorane, 3, 6-diethoxyfluorane and monosalicylaldehyde Schiff base according to the weight ratio of 1.1:0.7: 0.4.
Each part of the temperature-sensitive aqueous emulsion is prepared by mixing and stirring 80 parts of waterborne hydroxy acrylic acid, 8 parts of polyorganosiloxane and 25 parts of pure water for 52min at 68 ℃, and the particle size of the temperature-sensitive aqueous emulsion is 8 um.
Each part of the diluent is a mixture of n-butanol and ethanol according to the weight ratio of 1.1: 0.7. Each part of the compatilizer is a mixture of maleic anhydride, acrylic acid and epoxy anhydride according to the weight ratio of 1.1:0.7: 0.9.
Each part of the antioxidant is a mixture of an antioxidant 1010, an antioxidant 168 and an antioxidant CA-1071 in a weight ratio of 0.9:0.7: 1.1.
Each part of the light stabilizer is a mixture of the light stabilizer 119, the light stabilizer 2020 and the light stabilizer 944 in a weight ratio of 0.7:0.9: 1.1.
The color-changing fiber is prepared by the following steps:
1) adding the temperature-sensitive aqueous emulsion, the temperature-sensitive color-changing pigment and the compatilizer into the diluent according to the parts by weight, stirring uniformly, adding the antioxidant, and stirring for 30min to obtain a mixture A for later use;
2) adding polyester fiber into the mixture A obtained in the step 1), heating to 70-90 ℃, stirring for 60min, adding 2, 2-thiobis (4-tert-octylphenol) n-butylamine nickel salt and a light stabilizer, stirring for 30min, and preserving heat for 1h to obtain a mixture B for later use;
3) transferring the mixture B obtained in the step 2) to a solidifying device for cooling, solidifying and forming, and finally obtaining the color-changing fiber after passing through a melt-blown non-woven fabric production device.
Example 5
A temperature sensing color-changing braided cable comprises a plurality of conductive cables 1 with insulating layers, a flame-retardant layer 2, an insulating sleeve 3 and a color-changing fiber protective layer 4, wherein the color-changing fiber protective layer 4 is formed by braiding 24 color-changing fibers in a mode of a spindle moving along a horse by 19 left and 5 right arranging and combining; the conductive cables 1 are mutually twisted and combined in the insulating sleeve 3, the flame-retardant layer 2 is filled in the insulating sleeve 3, and the color-changing fiber protective layer 4 is woven on the outer surface of the insulating sleeve 3.
The color-changing fiber protective layer is made of color-changing fibers, and the color-changing fibers comprise the following raw materials in parts by weight:
Figure BDA0002197330520000091
each part of the temperature-sensitive color-changing pigment is a mixture consisting of 2- (2-4-dimethylanilino) -3-methyl-6-diethylaminofluorane, 3, 6-diethoxyfluorane and monosalicylaldehyde Schiff base according to the weight ratio of 1.2:0.8: 0.5.
Each part of the temperature-sensitive aqueous emulsion is prepared by mixing and stirring 90 parts of waterborne hydroxy acrylic acid, 10 parts of polyorganosiloxane and 30 parts of pure water for 60min at the temperature of 70 ℃, and the particle size of the temperature-sensitive aqueous emulsion is 10 um.
Each part of the diluent is a mixture of n-butanol and ethanol according to the weight ratio of 1.2: 0.8. Each part of the compatilizer is a mixture of maleic anhydride, acrylic acid and epoxy anhydride according to the weight ratio of 1.2:0.8: 1.0.
Each part of the antioxidant is a mixture of the antioxidant 1010, the antioxidant 168 and the antioxidant CA-1071 in a weight ratio of 1.0:0.8: 1.2.
Each part of the light stabilizer is a mixture of the light stabilizer 119, the light stabilizer 2020 and the light stabilizer 944 in a weight ratio of 0.8:1.0: 1.2.
The color-changing fiber is prepared by the following steps:
1) adding the temperature-sensitive aqueous emulsion, the temperature-sensitive color-changing pigment and the compatilizer into the diluent according to the parts by weight, stirring uniformly, adding the antioxidant, and stirring for 60min to obtain a mixture A for later use;
2) adding polyester fiber into the mixture A obtained in the step 1), heating to 90 ℃, stirring for 120min, adding 2, 2-thiobis (4-tert-octylphenol) n-butylamine nickel salt and a light stabilizer, stirring for 60min, and preserving heat for 2h to obtain a mixture B for later use;
3) transferring the mixture B obtained in the step 2) to a solidifying device for cooling, solidifying and forming, and finally obtaining the color-changing fiber after passing through a melt-blown non-woven fabric production device.
Comparative example 1
A temperature sensing color-changing braided cable comprises a plurality of conductive cables 1 with insulating layers, a flame-retardant layer 2, an insulating sleeve 3 and a color-changing fiber protective layer 4, wherein the color-changing fiber protective layer 4 is formed by braiding 24 color-changing fibers in a spindle-walking mode through 14 leftward and 10 rightward permutation and combination; the conductive cables 1 are mutually twisted and combined in the insulating sleeve 3, the flame-retardant layer 2 is filled in the insulating sleeve 3, and the color-changing fiber protective layer 4 is woven on the outer surface of the insulating sleeve 3.
The color-changing fiber protective layer is made of color-changing fibers, and the color-changing fibers comprise the following raw materials in parts by weight:
Figure BDA0002197330520000101
each part of the temperature-sensitive color-changing pigment is polygermane.
Each part of the temperature-sensitive aqueous emulsion is prepared by mixing and stirring 40 parts of waterborne hydroxy acrylic acid, 1 part of polyorganosiloxane and 10 parts of pure water for 30min at the temperature of 60 ℃, and the particle size of the temperature-sensitive aqueous emulsion is 1 um.
Each part of the diluent is a mixture of n-butanol and ethanol according to the weight ratio of 0.8-1.2: 0.4-0.8. Each part of the compatilizer is a mixture of maleic anhydride, acrylic acid and epoxy anhydride according to the weight ratio of 0.8-1.2:0.4-0.8: 0.6-1.0.
Each part of the antioxidant is a mixture of an antioxidant 1010, an antioxidant 168 and an antioxidant CA-1071 in a weight ratio of 0.6-1.0:0.4-0.8: 0.8-1.2.
Each part of the light stabilizer is a mixture of the light stabilizer 119, the light stabilizer 2020 and the light stabilizer 944 in a weight ratio of 0.4-0.8:0.6-1.0: 0.8-1.2.
The color-changing fiber is prepared by the following steps:
1) adding the temperature-sensitive aqueous emulsion, the temperature-sensitive color-changing pigment and the compatilizer into the diluent according to the parts by weight, stirring uniformly, adding the antioxidant, and stirring for 30min to obtain a mixture A for later use;
2) adding polyester fiber into the mixture A obtained in the step 1), heating to 70-90 ℃, stirring for 60min, adding 2, 2-thiobis (4-tert-octylphenol) n-butylamine nickel salt and a light stabilizer, stirring for 30min, and preserving heat for 1h to obtain a mixture B for later use;
3) transferring the mixture B obtained in the step 2) to a solidifying device for cooling, solidifying and forming, and finally obtaining the color-changing fiber after passing through a melt-blown non-woven fabric production device.
Comparative example 2
A temperature sensing color-changing braided cable comprises a plurality of conductive cables 1 with insulating layers, a flame-retardant layer 2, an insulating sleeve 3 and a color-changing fiber protective layer 4, wherein the color-changing fiber protective layer 4 is formed by braiding 24 color-changing fibers in a horse-riding spindle mode through 15 leftward and 9 rightward arranging and combining; the conductive cables 1 are mutually twisted and combined in the insulating sleeve 3, the flame-retardant layer 2 is filled in the insulating sleeve 3, and the color-changing fiber protective layer 4 is woven on the outer surface of the insulating sleeve 3.
The color-changing fiber protective layer is made of color-changing fibers, and the color-changing fibers comprise the following raw materials in parts by weight:
Figure BDA0002197330520000111
Figure BDA0002197330520000121
each part of the temperature-sensitive color-changing pigment is a mixture consisting of 2- (2-4-dimethylanilino) -3-methyl-6-diethylaminofluorane, 3, 6-diethoxyfluorane and monosalicylaldehyde Schiff base according to the weight ratio of 1.0:0.6: 0.3.
Each part of the temperature-sensitive aqueous emulsion is prepared by mixing and stirring 65 parts of waterborne hydroxy acrylic acid, 6 parts of polyorganosiloxane and 20 parts of pure water for 45min at the temperature of 65 ℃, and the particle size of the temperature-sensitive aqueous emulsion is 5 um.
Each part of the diluent is a mixture of n-butanol and ethanol according to the weight ratio of 1.0: 0.6. Each part of the compatilizer is a mixture of maleic anhydride, acrylic acid and epoxy anhydride according to the weight ratio of 1.0:0.6: 0.8.
Each part of the antioxidant is a mixture of an antioxidant 1010, an antioxidant 168 and an antioxidant CA-1071 in a weight ratio of 0.8:0.6: 1.0.
Each part of the light stabilizer is a mixture of the light stabilizer 119, the light stabilizer 2020 and the light stabilizer 944 in a weight ratio of 0.6:0.8: 1.0.
The color-changing fiber is prepared by the following steps:
1) adding the temperature-sensitive aqueous emulsion, the temperature-sensitive color-changing pigment and the compatilizer into the diluent according to the parts by weight, stirring uniformly, adding the antioxidant, and stirring for 45min to obtain a mixture A for later use;
2) adding cotton fibers into the mixture A obtained in the step 1), heating to 80 ℃, stirring for 90min, adding 2, 2-thiobis (4-tert-octylphenol) n-butylamine nickel salt and a light stabilizer, stirring for 45min, and preserving heat for 1.5h to obtain a mixture B for later use;
3) transferring the mixture B obtained in the step 2) to a solidifying device for cooling, solidifying and forming, and finally obtaining the color-changing fiber after passing through a melt-blown non-woven fabric production device.
Comparative example 3
A temperature sensing color-changing braided cable comprises a plurality of conductive cables 1 with insulating layers, a flame-retardant layer 2, an insulating sleeve 3 and a color-changing fiber protective layer 4, wherein the color-changing fiber protective layer 4 is formed by braiding 24 color-changing fibers in a warp-weft manner through arrangement combination of 19 warp directions and 5 weft directions; the conductive cables 1 are mutually twisted and combined in the insulating sleeve 3, the flame-retardant layer 2 is filled in the insulating sleeve 3, and the color-changing fiber protective layer 4 is woven on the outer surface of the insulating sleeve 3.
The color-changing fiber protective layer is made of color-changing fibers, and the color-changing fibers comprise the following raw materials in parts by weight:
Figure BDA0002197330520000122
Figure BDA0002197330520000131
each part of the temperature-sensitive color-changing pigment is a mixture consisting of 2- (2-4-dimethylanilino) -3-methyl-6-diethylaminofluorane, 3, 6-diethoxyfluorane and monosalicylaldehyde Schiff base according to the weight ratio of 1.2:0.8: 0.5.
Each part of the temperature-sensitive aqueous emulsion is prepared by mixing and stirring 90 parts of waterborne hydroxy acrylic acid, 10 parts of polyorganosiloxane and 30 parts of pure water for 60min at the temperature of 70 ℃, and the particle size of the temperature-sensitive aqueous emulsion is 10 um.
Each part of the diluent is a mixture of n-butanol and ethanol according to the weight ratio of 1.2: 0.8. Each part of the compatilizer is a mixture of maleic anhydride, acrylic acid and epoxy anhydride according to the weight ratio of 1.2:0.8: 1.0.
Each part of the antioxidant is a mixture of the antioxidant 1010, the antioxidant 168 and the antioxidant CA-1071 in a weight ratio of 1.0:0.8: 1.2.
Each part of the light stabilizer is a mixture of the light stabilizer 119, the light stabilizer 2020 and the light stabilizer 944 in a weight ratio of 0.8:1.0: 1.2.
The color-changing fiber is prepared by the following steps:
1) adding the temperature-sensitive aqueous emulsion, the temperature-sensitive color-changing pigment and the compatilizer into the diluent according to the parts by weight, stirring uniformly, adding the antioxidant, and stirring for 60min to obtain a mixture A for later use;
2) adding polyester fiber into the mixture A obtained in the step 1), heating to 90 ℃, stirring for 120min, adding 2, 2-thiobis (4-tert-octylphenol) n-butylamine nickel salt and a light stabilizer, stirring for 60min, and preserving heat for 2h to obtain a mixture B for later use;
3) transferring the mixture B obtained in the step 2) to a solidifying device for cooling, solidifying and forming, and finally obtaining the color-changing fiber after passing through a melt-blown non-woven fabric production device.
First, the discolored fibers prepared in examples 1 to 5 and comparative examples 1 to 3 were subjected to the detection of elongation at break, strength at break, temperature sensitivity (test under conditions of 5 ℃, 25 ℃ and 40 ℃) and aging resistance of the single discolored fibers, respectively, and the results are shown in Table 1.
TABLE 1
Figure BDA0002197330520000132
Figure BDA0002197330520000141
From the above results, it can be seen that the color-changing fibers prepared in examples 1 to 5 of the present invention have excellent properties, excellent elongation at break, breaking strength and aging resistance, and strong temperature-change sensitivity under low temperature, normal temperature and high temperature conditions, and are suitable for mass production.
Second, the color-changeable braided cables prepared in the specific examples 1 to 5 and the comparative examples 1 to 3 were tested for elongation at break (GB/T1040.1 to 2006), tensile strength (GB/T1040.1 to 2006), oxygen index (GB/T2406 to 1993) and flame retardancy grade (GB12666.5), respectively, and the results are shown in Table 2.
TABLE 2
Item Elongation at Break (%) Tensile Strength (MPa) Oxygen index Flame retardant rating (Standard UL-94)
Example 1 184 33 36 1.0mmV-1
Example 2 186 35 38 1.0mmV-0
Example 3 188 36 39 1.0mmV-0
Example 4 185 34 37 1.0mmV-1
Example 5 187 35 35 1.0mmV-1
Comparative example 1 174 28 28 1.0mmV-2
Comparative example 2 123 25 23 1.0mmHB
Comparative example 3 175 30 35 1.0mmV-1
As can be seen from the test results in table 2, the cables prepared in examples 1 to 5 of the present invention have excellent properties, excellent elongation at break, tensile strength, oxygen index, flame retardant rating, and aging resistance, and strong temperature sensitivity at low temperature, normal temperature, and high temperature, and are suitable for mass production.
Compared with the example 1, the polygermane is used for replacing the mixture consisting of 2- (2-4-dimethylanilino) -3-methyl-6-diethylaminofluorane, 3, 6-diethoxyfluorane and monosalicylaldehyde Schiff base when the color-changing fiber used by the cable is prepared in the comparative example 1, the cable prepared by the color-changing fiber is subjected to various physical property tests, and analysis shows that the elongation at break, the tensile strength, the oxygen index, the flame retardant grade and the anti-aging performance of the cable are relatively reduced; the invention shows that the mixed dye consisting of 2- (2-4-dimethylanilino) -3-methyl-6-diethylaminofluorane, 3, 6-diethoxyfluorane and monosalicylaldehyde Schiff base is added when preparing the color-changing fiber used by the cable, so that various performances of the cable can be effectively improved, and the prepared cable has strong temperature-changing sensitivity under the conditions of low temperature, normal temperature and high temperature, is durable, and is suitable for large-scale production.
Compared with the example 3, in the comparative example 2, the polyester fiber is replaced by the cotton fiber when the color-changing fiber used by the cable is prepared, various physical property tests are carried out on the cable prepared by the color-changing fiber, and the analysis shows that the elongation at break, the tensile strength, the oxygen index, the flame retardant grade and the ageing resistance of the cable are obviously reduced; the invention shows that the polyester fiber adopted in the preparation of the color-changing fiber for the cable can effectively improve various performances of the cable, so that the prepared cable has strong temperature-changing sensitivity under the conditions of low temperature, normal temperature and high temperature, is durable, and is suitable for large-scale production.
Compared with the embodiment 5, in the comparative example 3, the color-changing fiber protective layer used for the cable is prepared by using a warp and weft weaving mode to pass through 19 warp directions and 5 weft directions in a combined weaving mode instead of using a runner spindle to pass through 19 left and 5 right combined weaving modes, and the cable woven by using the color-changing fiber protective layer is subjected to various physical property tests, and analysis shows that the elongation at break, the tensile strength, the oxygen index, the flame retardant grade and the aging resistance of the cable are relatively reduced; the invention shows that the mode of the walking horse ingot for preparing the cable can effectively improve various performances of the cable through 19 left and 5 right arranging and combining weaving modes, so that the prepared cable has strong temperature change sensitivity under the conditions of low temperature, normal temperature and high temperature, is durable and is suitable for large-scale production.
The above-described embodiments are preferred implementations of the present invention, and the present invention may be implemented in other ways without departing from the spirit of the present invention.

Claims (8)

1. The utility model provides a cable is woven to temperature sensing discolour, includes a plurality of electrically conductive cables that have the insulating layer, its characterized in that: the conductive cable is twisted with each other and arranged in the insulating sleeve, the flame-retardant layer is filled in the insulating sleeve, and the color-changing fiber protective layer is woven on the outer surface of the insulating sleeve;
the color-changing fiber protective layer is made of color-changing fibers, and the color-changing fibers comprise the following raw materials in parts by weight:
Figure FDA0002788906310000011
each part of the temperature-sensitive aqueous emulsion is prepared by mixing 40-90 parts of waterborne hydroxyacrylic acid, 1-10 parts of polysiloxane and 10-30 parts of pure water at the temperature of 60-70 ℃.
2. The thermochromic braided cable of claim 1, wherein: each part of the temperature-sensitive color-changing pigment is at least one of 2- (2-4-dimethylanilino) -3-methyl-6-diethylaminofluorane, 3, 6-diethoxyfluorane and mono-salicylaldehyde Schiff base.
3. The thermochromic braided cable of claim 1, wherein: each part of the diluent is a mixture of n-butanol and ethanol according to the weight ratio of 0.8-1.2: 0.4-0.8.
4. The thermochromic braided cable of claim 1, wherein: each part of the compatilizer is at least two of maleic anhydride, acrylic acid and epoxy anhydride.
5. The thermochromic braided cable of claim 1, wherein: each part of the antioxidant is at least two of an antioxidant 1010, an antioxidant 168, an antioxidant B225 and an antioxidant CA-1071.
6. The thermochromic braided cable of claim 1, wherein: each of the light stabilizers is at least two of light stabilizer 119, light stabilizer 2020, light stabilizer 944 and light stabilizer 783.
7. The thermochromic woven cable of any one of claims 1 to 6, wherein: the color-changing fiber is prepared by the following steps:
1) adding the temperature-sensitive aqueous emulsion, the temperature-sensitive color-changing pigment and the compatilizer into the diluent according to the parts by weight, stirring uniformly, adding the antioxidant and stirring to obtain a mixture A for later use;
2) adding polyester fiber into the mixture A obtained in the step 1), heating and stirring, adding 2, 2-thiobis (4-tert-octylphenol) n-butylamine nickel salt and a light stabilizer, stirring, and preserving heat to obtain a mixture B for later use;
3) transferring the mixture B obtained in the step 2) to a solidifying device for cooling, solidifying and forming, and finally obtaining the color-changing fiber after passing through a melt-blown non-woven fabric production device.
8. The thermochromic braided cable of claim 7, wherein: stirring for 30-60min after the antioxidant is added in the step 1); in the step 2), the heating temperature of the added polyester fiber is 70-90 ℃, the stirring is carried out for 60-120min, the stirring time of the added light stabilizer is 30-60min, and the heat preservation time is 1-2 h.
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