CN108070134A - A kind of cable material and preparation method with Self-heating repair function - Google Patents
A kind of cable material and preparation method with Self-heating repair function Download PDFInfo
- Publication number
- CN108070134A CN108070134A CN201711428552.2A CN201711428552A CN108070134A CN 108070134 A CN108070134 A CN 108070134A CN 201711428552 A CN201711428552 A CN 201711428552A CN 108070134 A CN108070134 A CN 108070134A
- Authority
- CN
- China
- Prior art keywords
- self
- preparation
- repair function
- cable material
- heating repair
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
- C08G12/04—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
- C08G12/10—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with acyclic compounds having the moiety X=C(—N<)2 in which X is O, S or —N
- C08G12/12—Ureas; Thioureas
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
- C08G12/40—Chemically modified polycondensates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Insulating Materials (AREA)
Abstract
The present invention relates to a kind of cable materials and preparation method with Self-heating repair function, belong to insulating materials technical field.The technical problem to be solved by the present invention is to provide a kind of preparation methods of the cable material with Self-heating repair function.This method prepares the double-layer structure microcapsules that ectonexine is respectively coated by ammonium salt, nitrite first with Lauxite, the thermoplastic polymer of absorption low melting point is filled in its surface void again, is dispersed in the cable material for obtaining that there is Self-heating repair function in matrix resin.When the material generates defect in cable, microcapsules rupture releases ammonium salt, nitrite carries out spontaneous thermal response so that low melting point thermoplastic polymer flow realizes selfreparing so as to fill, bond micro-crack.
Description
Technical field
The present invention relates to a kind of cable materials and preparation method with Self-heating repair function, belong to insulating materials technology
Field.
Background technology
Crosslinked polyetylene insulated (XLPE) cable is widely used in electric power, building, industrial and mineral, metallurgy, oil, chemical industry, traffic
The departments of grade, completely instead of oil-impregnated paper insulation cable and partial alternative PVC insulated power cable.As cable is transported
The increase of the row time limit, the macromolecules such as polyethylene, silicon rubber, epoxy resin and its composite material in use, inside not
Evitable to generate using electricity tree and water tree as the microdefect of representative, this slight imperfections, which further develops, will cause insulated with material old
Change and destroy, cause failure of insulation and equipment fault.Water tree is mainly made of hydrophilic Nanoscale channels and micron order hole
Property dendroid insulation defect, electric tree will likely be triggered under the action of overvoltage, cause irreversible insulation breakdown, and final
Cable insulation is caused to fail.
In previous application, the electric branch that is triggered in cable insulation by water tree can be to carry out it during water tree state
A degree of reparation, it is main using dry N2, three kinds of materials of hydrophobic compounds and siloxanes are as repairing media to insulation
The cable that intensity declines carries out the artificial service life for repairing to extend cable.These conventional methods need substantial amounts of manually dry
In advance, resource consumption is big, ineffective, and can not repair the insulation defect of electric branch initiation.And add other in cable insulation
The technology that material inhibits electric branch development is not also used widely because can not fundamentally repair electric branch defect.
If it is possible to make high molecular material that there is selfreparing, you can to develop in water tree or electric branch first
Phase solves the above problems, and significantly extends the service life of cable insulation material, improves the reliability and security of product.
The patent of invention of Application No. 201710259586.7 discloses a kind of friendship of the compound siloxanes of inorganic nano-particle
Join PE cable and repair liquid and preparation method thereof, vinyl group is introduced on titanium dioxide nanoparticle surface, afterwards with nanometer
Alundum (Al2O3), nano silicon dioxide, nano zine oxide inorganic nano-particle mix composition nano dispersion fluid with organic solvent；It
Afterwards on the basis of siloxanes repairs liquid, the titanate ester catalyst with hydrolysis generation nano-metal-oxide ability is selected,
Scattered composition cable is mixed with nano dispersion fluid and repairs liquid.The present invention repairs liquid compared with traditional siloxanes recovery technique, right
Cable insulation defect is filled that repair time is short, safety and stability, and repairing effect is notable, can inhibit water tree and defect into one
One-step growth.The material can inhibit the further growth of water tree defect, still, the defects of for using electric branch to represent, repair
Reactivation power is bad.
The patent of invention of Application No. 201710016759.2 discloses a kind of cable of early stage electric branch defect selfreparing
The preparation method of insulating materials, the cable insulation material are a kind of composite materials, by 1wt%~3wt% renovation agents containing liquid
Microcapsules are blended with low-density polyethylene material, add the Grubbs catalyst of 0.02wt%~0.05wt%, pass through extrusion
Machine is squeezed out and cooled down, and selfreparing cable insulation material is obtained after dry；The microcapsules of the renovation agent containing liquid are Lauxite
Coating dicyclopentadiene capsule of nano.It is repaired by renovation agent and the chemical reaction being imbedded between the in vivo catalyst of base early
Phase electric branch defect ensures the dielectric strength of cable material without being decreased obviously.The material, which also has, prepares simple, remediation efficiency
High, the features such as can keeping for a long time, the electric insulation layer of cable is can be widely applied to, can effectively extend cable insulation material
Service life and stability in use.The material is only capable of repairing the insulation defect that electric branch triggers, for water tree defect, repair ability
It is bad, and during material reparation, dependent on Grubbs catalyst, which repairs probability and only has 75% or so, is unable to reach percentage
Hundred self-reparing capability.
The patent of invention of Application No. 201710051221.5 discloses a kind of cable insulation material with self-repair function
Material, is counted composed of the following components in parts by weight：100 parts of low density polyethylene (LDPE), 2~4 parts of vinyltrimethoxysilane, tertiary fourth
Base peroxidating -3,5,0.08~0.2 part of 5- tri-methyl hexanoic acids ester, 1,801 0.4~1.2 part of organic stearic acid, tin dilaurate two
1.5~4 parts of butyl tin, 1.5~4.5 parts of zinc oxide, 1,010 1.8~3.2 parts of antioxidant, Lauxite coating dicyclopentadiene body
1~5 part of microcapsules made of system, 0.02~0.03 part of Grubbs catalyst.Bicyclic penta is coated by Lauxite in formula
The effect of microcapsules made of diene system and Grubbs catalyst so that selfreparing crosslinking polyethylene-insulated cable insulation material for
Electric branch defect has good repairing performance.And the material, when repairing, dependent on Grubbs catalyst, which repairs several
Rate only has 75% or so, is unable to reach self-reparing capability very.
The content of the invention
For disadvantages described above, the object of the present invention is to provide a kind of cable material with Self-heating repair function and preparations
Method, the material need not rely on catalyst, when defect is generated in cable, can be repaired automatically, efficiently reduce economy
Loss, and extend the service life of cable.
First technical problem that the present invention solves is to provide a kind of system of the cable material with Self-heating repair function
Preparation Method.
The present invention has the preparation method of the cable material of Self-heating repair function, includes the following steps：
A, the synthesis of urea resin prepolymer：By the formalin of urea and mass fraction 37% by weight 1~2:1 mixing, is adjusted
It is 8.5~9.5 to save pH value of solution, is heated to 65~80 DEG C of 0.5~2h of reaction, obtains urea resin prepolymer；
B, the preparation of Single-layer microcapsules：Ammonium salt is dissolved in water, adds in surfactant, atoleine and curing agent resorcinol,
Disperse 10~20min under the mixing speed of 3000~10000 r/min, form stable oil-in-water emulsion, then by oil-in-water
Lotion is poured into urea resin prepolymer, and regulation system initial pH value is 3.5；Water-bath slowly heats up, and solution temperature reaches 60 DEG C
Afterwards, washing, dry, the urea-formaldehyde resin microcapsule singly coated, i.e. Single-layer microcapsules after 2~3 h of reaction；
C, the preparation of bilayered microcapsule：By nitrite, Single-layer microcapsules by weight 1~6:1 is added to the water, and adds curing
Agent resorcinol, pore-foaming agent normal heptane disperse 10~20min under the mixing speed of 3000~10000 r/min, are formed and stablized
Oil-in-water emulsion, then oil-in-water emulsion is poured into urea resin prepolymer, regulation system initial pH value is 3.5；Water-bath is delayed
Slow heating after solution temperature reaches 60 DEG C, reacts washing, drying after 2~3 h, obtains surface and have cuniculate bilayered microcapsule；
D, fill：Low-temperature thermoplastic polymer is filled in the surface voids of bilayered microcapsule, obtains filling microcapsules；
E, disperse：Filling microcapsules are scattered in matrix resin, obtain the cable material with Self-heating repair function.
The method of the present invention prepares the surface voids that ectonexine is respectively coated by ammonium salt, nitrite first with Lauxite
Double-layer structure microcapsules, then the thermoplastic polymer of absorption low melting point is filled in its surface void, it is dispersed in matrix resin
In obtain selfreparing CABLE MATERIALS.When generating defect in cable, microcapsules rupture releases ammonium salt, nitrite carries out Self-heating
Reaction so that low melting point thermoplastic polymer melt-flow realizes selfreparing so as to fill, bond micro-crack；Can effectively it subtract
Few economic loss, and extend the service life of cable.
A steps to step c be the bilayered microcapsule that surface voids are prepared the step of.Preparation-obtained bilayer is micro-
Capsule, internal layer is using ammonium salt as core, using Lauxite as wall, outer layer filling nitrate, and have cuniculate Lauxite with surface
For wall.
A steps are mainly the synthesis of urea resin prepolymer, it is necessary to strictly control reaction condition, it is preferred that in a steps,
It is 9 to adjust pH value of solution, is heated to 70 DEG C of reaction 1h.
B step is the preparation of Single-layer microcapsules, emulsifies to obtain oil-in-water lotion using high-speed stirred, is then dispersed in urea
Urea formaldehyde performed polymer cures, and ultimately forms Single-layer microcapsules.
Ammonium salt commonly used in the art be suitable for the present invention, it is preferred that the ammonium salt for ammonium sulfate, ammonium nitrate, ammonium chloride,
Ammonium carbonate or ammonium hydrogen carbonate.
Surfactant can make the interface state of its solution system that the substance of significant change occur on a small quantity for addition.With solid
Fixed hydrophilic lipophilic group can align on the surface of solution.The species of Surfactant of the present invention does not require, preferably
, the surfactant of Tweens surfactant or spans can be selected.
The rotating speed of stirring will play a crucial role to the generation of microballoon, it is preferred that using the stirring speed in 5000 r/min
The lower scattered 15min of degree.Stirring can carry out in conventional high-speed emulsifying machine.High-speed emulsifying machine refers to that material is newborn in homogeneous pot
During change, the rotating speed of homogeneous head reaches more than 2980r/min, coordinates mixing slowly for stirring frame, material is made fully to shear, and crushes,
It is uniformly mixed, gets a desired effect.
The proportioning of each raw material will also influence the preparation of microcapsules, it is preferred that in b step, ammonium salt, surfactant, liquid
The weight ratio of paraffin, resorcinol and urea resin prepolymer is 2~8:1~3:4~8:0.05~0.5:10；It is furthermore preferred that
Ammonium salt, surfactant, atoleine, the weight ratio of resorcinol and urea resin prepolymer are 5:2:5:0.2:10.
Step c still emulsifies to obtain oil-in-water lotion, Ran Houfen using high-speed stirred for bilayered microcapsule is prepared
It is dispersed in urea resin prepolymer curing, using normal heptane as pore-foaming agent, finally obtains surface and have cuniculate bilayered microcapsule.
Nitrite commonly used in the art is suitable for the present invention, it is preferred that the nitrite is sodium nitrite.
The proportioning of each raw material will also influence the preparation of microcapsules, it is preferred that in step c, Single-layer microcapsules, resorcinol,
Normal heptane, the weight ratio of urea resin prepolymer is 2~8:0.05~0.5:0.5~1:10；It is furthermore preferred that Single-layer microcapsules,
Resorcinol, normal heptane, the weight ratio of urea resin prepolymer is 5: 0.1:0.7:10.
The rotating speed of stirring will play a crucial role to the generation of bilayered microcapsule, it is preferred that using 5000 r/min's
Disperse 15min under mixing speed.Stirring can carry out in above-mentioned conventional high-speed emulsifying machine.
Step d fills low melting point thermoplastic polymer in the surface voids of bilayered microcapsule, and method may be employed existing
Any method having, it is preferred that with the following method：After thermoplastic polymer is melted, bilayered microcapsule, Ran Houqu are added in
Go out, cool down.Wherein, the low melting point thermoplastic polymer is that can heat fusing repeatedly, is molded under softening or flow regime, cold
But the polymer of mold shape, such as nylon, EVA, polycaprolactone, rosin etc. can be kept after.
Step e is blended for that will fill microcapsules with matrix resin, obtains the cable material with Self-heating repair function.Its
In, matrix resin is mainly basis material, in order to ensure the performance of the cable material with Self-heating repair function, to filling
The amount of microcapsules has certain requirement, it is preferred that in step e, the weight ratio for filling microcapsules and matrix resin is 0.5~5:
10；More preferably the weight ratio of filling microcapsules and matrix resin is 3:10.
Matrix resin commonly used in the art is suitable for the present invention.Preferably, described matrix resin is polyvinyl resin.
Existing method may be employed in filling microcapsules and the method for matrix resin blending.For example, using physical blending
Method makes addition fill microcapsules in synthesis matrix resin.It in order to facilitate the operation and controls, it is preferred to use physical blending
Using twin-screw extrusion, filling microcapsules and the common melting extrusion of matrix resin are obtained with Self-heating repair function for method
Cable material.
Second technical problem that the present invention solves is to provide a kind of cable material with Self-heating repair function.
The cable material with Self-heating repair function of the present invention, by the above-mentioned cable material with Self-heating repair function
The preparation method of material is prepared.When the insulating materials generates defect in cable, microcapsules rupture releases ammonium salt, nitrous acid
Salt carries out spontaneous thermal response so that low melting point thermoplastic polymer melt-flow so as to fill, bond micro-crack, review one's lessons by oneself by realization
It is multiple.
Compared with prior art, the present invention has the advantages that：
When there is material of the present invention the cable material of Self-heating repair function defect is generated in cable, microcapsules rupture releases
Ammonium salt, nitrite carry out spontaneous thermal response so that low melting point thermoplastic polymer melt-flow is so as to filling, bond fine fisssure
Line realizes selfreparing；Low melting point thermoplastic polymer is adsorbed in capsule surface layer, can rapidly by heating and melt-flow is repaiied
It is multiple.Its preparation method is simple, and breakdown voltage is high, without adding in catalyst, can Self-heating repair cable, extend the use of cable
Service life.
Specific embodiment
In the following, the present invention will be further described in detail by way of specific embodiments, but this should not be interpreted as to the present invention
Scope be only limitted to following example.Without departing from the idea of the above method of the present invention, according to ordinary skill
The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
The cable material with Self-heating repair function is prepared with the following method：
A, the synthesis of urea resin prepolymer：By the formalin of urea and mass fraction 37% by weight 1:1 mixing, is adjusted
PH value of solution is 8.5, is heated to 65 DEG C of reaction 0.5h, obtains urea resin prepolymer.
B, the preparation of Single-layer microcapsules：Ammonium salt is dissolved in water, adds in Tween 80, atoleine and curing agent resorcinol,
Disperse 20min under the mixing speed of 3000 r/min, form stable oil-in-water emulsion, then oil-in-water emulsion is poured into ureaformaldehyde
In resin prepolymer, regulation system initial pH value is 3.5；Water-bath slowly heats up, after solution temperature reaches 60 DEG C, after reacting 2 h
Washing, dry, the urea-formaldehyde resin microcapsule singly coated, i.e. Single-layer microcapsules；Wherein, ammonium salt, surfactant, liquid stone
The weight ratio of wax, resorcinol and urea resin prepolymer is 2:1:4:0.05:10, the ammonium salt is ammonium chloride.
C, the preparation of bilayered microcapsule：By sodium nitrite, Single-layer microcapsules by weight 1:1 is added to the water, and adds solid
Agent resorcinol, pore-foaming agent normal heptane disperse 10min under the mixing speed of 3000 r/min, form stable oil-in-water
Lotion, then oil-in-water emulsion is poured into urea resin prepolymer, regulation system initial pH value is 3.5；Water-bath slowly heats up, molten
After liquid temperature degree reaches 60 DEG C, washing, drying after 2 h are reacted, surface is obtained and has cuniculate bilayered microcapsule, wherein, individual layer is micro-
Capsule, resorcinol, normal heptane, the weight ratio of urea resin prepolymer is 2: 0.05:0.5:10.
D, fill：After EVA is melted, bilayered microcapsule is added in, is then taken out, cooled down, it is empty on the surface of bilayered microcapsule
EVA is filled in cave, obtains filling microcapsules.
E, disperse：Filling microcapsules are scattered in polyvinyl resin, fill the weight ratio of microcapsules and polyvinyl resin
For 0.5:10, obtain the cable material with Self-heating repair function.
Embodiment 2
The cable material with Self-heating repair function is prepared with the following method：
A, the synthesis of urea resin prepolymer：By the formalin of urea and mass fraction 37% by weight 2:1 mixing, is adjusted
PH value of solution is 9.5, is heated to 80 DEG C of reaction 2h, obtains urea resin prepolymer.
B, the preparation of Single-layer microcapsules：Ammonium salt is dissolved in water, adds in Tween 80, atoleine and curing agent resorcinol,
Disperse 10min under the mixing speed of 10000 r/min, form stable oil-in-water emulsion, then oil-in-water emulsion is poured into urea
In urea formaldehyde performed polymer, regulation system initial pH value is 3.5；Water-bath slowly heats up, and after solution temperature reaches 60 DEG C, reacts 3 h
It washs afterwards, is dry, the urea-formaldehyde resin microcapsule singly coated, i.e. Single-layer microcapsules；Wherein, ammonium salt, surfactant, liquid
The weight ratio of paraffin, resorcinol and urea resin prepolymer is 8: 3: 8: 0.5:10, the ammonium salt is ammonium sulfate.
C, the preparation of bilayered microcapsule：By sodium nitrite, Single-layer microcapsules by weight 6:1 is added to the water, and adds solid
Agent resorcinol, pore-foaming agent normal heptane disperse 10min under the mixing speed of 10000 r/min, form stable oil-in-water
Lotion, then oil-in-water emulsion is poured into urea resin prepolymer, regulation system initial pH value is 3.5；Water-bath slowly heats up, molten
After liquid temperature degree reaches 60 DEG C, washing, drying after 3 h are reacted, surface is obtained and has cuniculate bilayered microcapsule, wherein, individual layer is micro-
Capsule, resorcinol, normal heptane, the weight ratio of urea resin prepolymer is 8: 0.5: 1:10.
D, fill：After polycaprolactone is melted, bilayered microcapsule is added in, is then taken out, cooled down, in the table of bilayered microcapsule
Polycaprolactone is filled in face in hole, obtains filling microcapsules.
E, disperse：Filling microcapsules are scattered in polyvinyl resin, fill the weight ratio of microcapsules and polyvinyl resin
For 5:10, obtain the cable material with Self-heating repair function.
Embodiment 3
The cable material with Self-heating repair function is prepared with the following method：
A, the synthesis of urea resin prepolymer：By the formalin of urea and mass fraction 37% by weight 1.5:1 mixing, is adjusted
It is 9 to save pH value of solution, is heated to 75 DEG C of reaction 0.8h, obtains urea resin prepolymer.
B, the preparation of Single-layer microcapsules：Ammonium salt is dissolved in water, adds in Tween 80, atoleine and curing agent resorcinol,
Disperse 10min under the mixing speed of 6000 r/min, form stable oil-in-water emulsion, then oil-in-water emulsion is poured into ureaformaldehyde
In resin prepolymer, regulation system initial pH value is 3.5；Water-bath slowly heats up, and after solution temperature reaches 60 DEG C, is washed after reacting 2h
It washs, dry, the urea-formaldehyde resin microcapsule singly coated, i.e. Single-layer microcapsules；Wherein, ammonium salt, surfactant, liquid stone
The weight ratio of wax, resorcinol and urea resin prepolymer is 5:1:4:0.25:10, the ammonium salt is ammonium chloride.
C, the preparation of bilayered microcapsule：By sodium nitrite, Single-layer microcapsules by weight 4:1 is added to the water, and adds solid
Agent resorcinol, pore-foaming agent normal heptane disperse 10min under the mixing speed of 6000 r/min, form stable oil-in-water
Lotion, then oil-in-water emulsion is poured into urea resin prepolymer, regulation system initial pH value is 3.5；Water-bath slowly heats up, molten
After liquid temperature degree reaches 60 DEG C, washing, drying after 2 h are reacted, surface is obtained and has cuniculate bilayered microcapsule, wherein, individual layer is micro-
Capsule, resorcinol, normal heptane, the weight ratio of urea resin prepolymer is 4: 0.25:0.8:10.
D, fill：After rosin is melted, bilayered microcapsule is added in, is then taken out, cooled down, it is empty on the surface of bilayered microcapsule
Rosin is filled in cave, obtains filling microcapsules.
E, disperse：Filling microcapsules are scattered in polyvinyl resin, fill the weight ratio of microcapsules and polyvinyl resin
For 4:10, obtain the cable material with Self-heating repair function.
Embodiment 4
The cable material with Self-heating repair function is prepared with the following method：
A, the synthesis of urea resin prepolymer：By the formalin of urea and mass fraction 37% by weight 1:1 mixing, is adjusted
PH value of solution is 8.5, is heated to 70 DEG C of reaction 2h, obtains urea resin prepolymer.
B, the preparation of Single-layer microcapsules：Ammonium salt is dissolved in water, adds in Tween 80, atoleine and curing agent resorcinol,
Disperse 17min under the mixing speed of 7000 r/min, form stable oil-in-water emulsion, then oil-in-water emulsion is poured into ureaformaldehyde
In resin prepolymer, regulation system initial pH value is 3.5；Water-bath slowly heats up, after solution temperature reaches 60 DEG C, after reacting 3 h
Washing, dry, the urea-formaldehyde resin microcapsule singly coated, i.e. Single-layer microcapsules；Wherein, ammonium salt, surfactant, liquid stone
The weight ratio of wax, resorcinol and urea resin prepolymer is 7:1:7:0.4:10, the ammonium salt is ammonium chloride.
C, the preparation of bilayered microcapsule：By sodium nitrite, Single-layer microcapsules by weight 5:1 is added to the water, and adds solid
Agent resorcinol, pore-foaming agent normal heptane disperse 17min under the mixing speed of 7000 r/min, form stable oil-in-water
Lotion, then oil-in-water emulsion is poured into urea resin prepolymer, regulation system initial pH value is 3.5；Water-bath slowly heats up, molten
After liquid temperature degree reaches 60 DEG C, washing, drying after 3 h are reacted, surface is obtained and has cuniculate bilayered microcapsule, wherein, individual layer is micro-
Capsule, resorcinol, normal heptane, the weight ratio of urea resin prepolymer is 7: 0.4:0.7:10.
D, fill：After pitch is melted, bilayered microcapsule is added in, is then taken out, cooled down, it is empty on the surface of bilayered microcapsule
Filled bitumen in cave obtains filling microcapsules.
E, disperse：Filling microcapsules are scattered in polyvinyl resin, fill the weight ratio of microcapsules and polyvinyl resin
For 3:10, obtain the cable material with Self-heating repair function.
The cable material with Self-heating repair function that embodiment 1-4 is obtained is scratched by cutter, observes it certainly
Repair function：The edge of a knife of scuffing slowly releases ammonium salt, nitrite since microcapsules are forced to rupture, Self-heating, one day
Afterwards, edge of a knife autoadhesion realizes self-repair function.Wherein, embodiment 1 due to the hot melting temperature of thermoplastic material it is low, within half a day
Realize Incision adhesives reparation.
Claims (10)
1. a kind of preparation method of the cable material with Self-heating repair function, which is characterized in that include the following steps：
A, the synthesis of urea resin prepolymer：By the formalin of urea and mass fraction 37% by weight 1~2:1 mixing, is adjusted
It is 8.5~9.5 to save pH value of solution, is heated to 65~80 DEG C of 0.5~2h of reaction, obtains urea resin prepolymer；
B, the preparation of Single-layer microcapsules：Ammonium salt is dissolved in water, surfactant, atoleine and resorcinol are added in, 3000
Disperse 10~20min under the mixing speed of~10000 r/min, form stable oil-in-water emulsion, then oil-in-water emulsion is fallen
Enter in urea resin prepolymer, regulation system initial pH value is 3.5；Water-bath slowly heats up, after solution temperature reaches 60 DEG C, reaction
It is washed after 2~3 h, is dry, obtaining Single-layer microcapsules；
C, the preparation of bilayered microcapsule：By nitrite, Single-layer microcapsules by weight 1~6:1 is added to the water, and adds isophthalic
Diphenol, normal heptane disperse 10~20min under the mixing speed of 3000~10000 r/min, form stable oil-in-water breast
Liquid, then oil-in-water emulsion is poured into urea resin prepolymer, regulation system initial pH value is 3.5；Water-bath slowly heats up, solution
After temperature reaches 60 DEG C, washing, drying after 2~3 h are reacted, surface is obtained and has cuniculate bilayered microcapsule；
D, fill：Low melting point thermoplastic polymer is filled in the surface voids of bilayered microcapsule, obtains filling microcapsules；
E, disperse：Filling microcapsules are scattered in matrix resin, obtain the cable material with Self-heating repair function.
2. the preparation method of the cable material according to claim 1 with Self-heating repair function, it is characterised in that：a
In step, it is 9 to adjust pH value of solution, is heated to 70 DEG C of reaction 1h.
3. the preparation method of the cable material according to claim 1 with Self-heating repair function, it is characterised in that：b
In step, the ammonium salt is ammonium sulfate, ammonium nitrate, ammonium chloride, ammonium carbonate or ammonium hydrogen carbonate.
4. the preparation method of the cable material according to claim 1 with Self-heating repair function, it is characterised in that：b
In step and step c, 15min is disperseed under the mixing speed of 5000 r/min.
5. the preparation method of the cable material according to claim 1 with Self-heating repair function, it is characterised in that：b
In step, ammonium salt, surfactant, atoleine, the weight ratio of resorcinol and urea resin prepolymer are 2~8:1~3:4
~8:0.05~0.5:10.
6. the preparation method of the cable material according to claim 1 with Self-heating repair function, it is characterised in that：c
In step, Single-layer microcapsules, resorcinol, normal heptane, the weight ratio of urea resin prepolymer is 2~8:0.05~0.5:0.5
~1:10.
7. the preparation method of the cable material according to claim 1 with Self-heating repair function, it is characterised in that：d
In step, the method that low melting point thermoplastic polymer is filled in the surface voids of bilayered microcapsule is：By low melting point thermoplasticity
After polymer melting, bilayered microcapsule is added in, is then taken out, cooled down；The low melting point thermoplastic polymer is nylon, EVA, gathers
One kind in caprolactone, rosin.
8. the preparation method of the cable material according to claim 1 with Self-heating repair function, it is characterised in that：e
In step, the weight ratio for filling microcapsules and matrix resin is 0.5~5:10.
9. the preparation method of the cable material according to claim 1 with Self-heating repair function, it is characterised in that：e
In step, described matrix resin is polyvinyl resin.
10. a kind of cable material with Self-heating repair function, it is characterised in that：By claim 1~9 any one of them
The preparation method of cable material with Self-heating repair function is prepared.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711428552.2A CN108070134A (en) | 2017-12-26 | 2017-12-26 | A kind of cable material and preparation method with Self-heating repair function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711428552.2A CN108070134A (en) | 2017-12-26 | 2017-12-26 | A kind of cable material and preparation method with Self-heating repair function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108070134A true CN108070134A (en) | 2018-05-25 |
Family
ID=62155558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711428552.2A Pending CN108070134A (en) | 2017-12-26 | 2017-12-26 | A kind of cable material and preparation method with Self-heating repair function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108070134A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109134951A (en) * | 2018-08-28 | 2019-01-04 | 广东电网有限责任公司 | A kind of self-healing cable outer sheath material, preparation method and its method for coating |
| US10309692B2 (en) | 2015-11-11 | 2019-06-04 | International Business Machines Corporation | Self-heating thermal interface material |
| CN110662411A (en) * | 2019-09-12 | 2020-01-07 | 西北核技术研究院 | Electric power and electrical equipment with self-recovery insulating property and use method thereof |
| CN110752073A (en) * | 2019-11-01 | 2020-02-04 | 邝少毅 | Preparation method of cable insulation failure repair material |
| CN113185761A (en) * | 2021-05-28 | 2021-07-30 | 国网河南省电力公司西峡县供电公司 | Preparation method of cable insulating material with self-repairing function |
| US11140779B2 (en) | 2016-08-25 | 2021-10-05 | International Business Machines Corporation | Laminate materials with embedded heat-generating multi-compartment microcapsules |
| CN116626833A (en) * | 2023-07-21 | 2023-08-22 | 江苏中天科技股份有限公司 | Antifreezing fire-resistant rat-proof optical cable |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103467791A (en) * | 2013-09-26 | 2013-12-25 | 沈阳化工大学 | Double-wall sandwich structural microcapsule self-repairing rubber and preparation method thereof |
-
2017
- 2017-12-26 CN CN201711428552.2A patent/CN108070134A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103467791A (en) * | 2013-09-26 | 2013-12-25 | 沈阳化工大学 | Double-wall sandwich structural microcapsule self-repairing rubber and preparation method thereof |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10309692B2 (en) | 2015-11-11 | 2019-06-04 | International Business Machines Corporation | Self-heating thermal interface material |
| US11085672B2 (en) | 2015-11-11 | 2021-08-10 | International Business Machines Corporation | Self-heating thermal interface material |
| US11140779B2 (en) | 2016-08-25 | 2021-10-05 | International Business Machines Corporation | Laminate materials with embedded heat-generating multi-compartment microcapsules |
| CN109134951A (en) * | 2018-08-28 | 2019-01-04 | 广东电网有限责任公司 | A kind of self-healing cable outer sheath material, preparation method and its method for coating |
| CN110662411A (en) * | 2019-09-12 | 2020-01-07 | 西北核技术研究院 | Electric power and electrical equipment with self-recovery insulating property and use method thereof |
| CN110752073A (en) * | 2019-11-01 | 2020-02-04 | 邝少毅 | Preparation method of cable insulation failure repair material |
| CN110752073B (en) * | 2019-11-01 | 2021-01-12 | 深圳联颖通讯有限公司 | Preparation method of cable insulation failure repair material |
| CN113185761A (en) * | 2021-05-28 | 2021-07-30 | 国网河南省电力公司西峡县供电公司 | Preparation method of cable insulating material with self-repairing function |
| CN116626833A (en) * | 2023-07-21 | 2023-08-22 | 江苏中天科技股份有限公司 | Antifreezing fire-resistant rat-proof optical cable |
| CN116626833B (en) * | 2023-07-21 | 2023-11-03 | 江苏中天科技股份有限公司 | Antifreezing fire-resistant rat-proof optical cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108070134A (en) | A kind of cable material and preparation method with Self-heating repair function | |
| CN103113751B (en) | A kind of adhesion coating cation-modified emulsified bitumen and preparation method thereof | |
| CN108084459B (en) | Paraffin emulsion and preparation method thereof | |
| CN101643584A (en) | Modified emulsified asphalt with excellent temperature adaptability and preparation method thereof | |
| CN101619149B (en) | Method for preparing cation emulsified rubber asphalt | |
| KR101195856B1 (en) | Worm-mix recycling polymer modified additive material, method of producing thefeof and worm-mix recycling polymer modified asphalt concrete | |
| CN103554933B (en) | For the high-adhesion priming oil and preparation method thereof of cement stabilized macadam base | |
| EP1003818A1 (en) | Emulsified bituminous binder | |
| CN106032436B (en) | A kind of wax emulsion compo and its preparation method and application | |
| KR102222350B1 (en) | Base for asphalt agent and thereof manufacturing method and, asphalt agent for low and high temperature asphalt mixture and thereof manufacturing method and, asphalt mixture and thereof manufacturing method using the same | |
| CN106977960A (en) | A kind of cationic composite modified emulsification asphalt material and preparation method thereof | |
| CN112210344B (en) | Emulsified asphalt cold regeneration layer interface bonding material, preparation method and application thereof | |
| CN106626665A (en) | Nano insulating sealing strip and preparation method thereof | |
| CN108084881A (en) | A kind of wet ground uncured rubber asphalt waterproof coating and preparation method thereof | |
| CN106700576A (en) | Composite modified asphalt of rubber and SBS | |
| KR102043590B1 (en) | Cold asphalt mixture | |
| CN106318356A (en) | Water plugging emulsion and preparation method thereof | |
| CN103937276B (en) | Low temperature sensitization special type Wax special and preparation method thereof | |
| CN109135667A (en) | A kind of waterproof roll self-adhesive, preparation method and the waterproof roll comprising it | |
| CN104497602B (en) | Production process of constant temperature asphalt compound emulsion forming stable chemical network | |
| CN1096693C (en) | Method for making cable insulation coil | |
| CN108997766A (en) | A kind of hgh-performance emulsified pitch and preparation method thereof | |
| US2782169A (en) | Continuous process for producing bituminous emulsions | |
| CN109880120A (en) | A kind of compound emulsifying agent and its preparation method and application for preparing emulsified wax | |
| CN103788663B (en) | A kind of high-performance polymer spray film water-proofing material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180525 |
|
| RJ01 | Rejection of invention patent application after publication |