CN105602193B - One kind can self-healing composite insulating material and preparation method thereof - Google Patents
One kind can self-healing composite insulating material and preparation method thereof Download PDFInfo
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- CN105602193B CN105602193B CN201510640632.9A CN201510640632A CN105602193B CN 105602193 B CN105602193 B CN 105602193B CN 201510640632 A CN201510640632 A CN 201510640632A CN 105602193 B CN105602193 B CN 105602193B
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Abstract
The present invention relates to one kind can self-healing composite insulating material and preparation method thereof, belong to power industry insulating materials manufacture technology field, the composite insulating material is as made from the self-healing material component based on hydrogen bond and insulating materials by way of solution blending.The preparation process of the composite is divided into two steps：The first step, the self-healing material component based on hydrogen bond is prepared by raw material of aliphatic acid polymer mixture, aliphatic polyamine and urea；Second step, hydrogen bond self-healing material component and insulating materials are dissolved into blending in the solution, homogeneous mixture system is formed, the solvent in mixed solution is removed in a manner of heating and vacuumizing, obtains composite insulating material.Composite insulating material produced by the present invention has certain self-healing ability, improves the service life of its reliability and material during use.
Description
Technical field
The invention belongs to power industry insulating materials manufacture technology field, and more particularly to one kind can self-healing composite insulating material
And preparation method thereof.
Background technology
With the development trend that power equipment minimizes, solid insulating material embodies certain excellent in some application scenarios
Gesture, such as dry-type transformer, power cable etc..During the use of solid insulating material, insulation ag(e)ing and insulating properties
Reduction the main reason for one of, be electric branch in solid insulating material generation and evolution.It is and electric in insulating materials
The further development of branch aging rice seed, it is breakdown to will eventually lead to insulating barrier so that power equipment be damaged and
Failure.And the power equipment of some such as cables, great inconvenience will be brought to maintenance after underground is there occurs failure, largely
Manpower financial capacity will be wasted, while can also cause the interruption maintenance of certain scale, cause huge economic loss.Thus, base
Be capable of the phenomenon of self-healing wound in organism, from bionical angle, propose a kind of solid-state can self-healing insulating materials be urgently
The problem of research.
The self-healing material of reversible of bonding in compound by introducing ionic crosslinking combination, multiple hydrogen bonding, active urea bond
Deng chemical bond or intermolecular force.When hallrcuts defect occurs, by the reversible key of material internal in itself, by the friendship of fracture
Networking network reconnects at the corresponding active group of reversible key, so as to realize the spontaneous healing of material.And based on hydrogen bond from
More material is one of which by introducing multiple hydrogen bonding and material has the material of reversible self-healing property.In summary, Gu
Insulation ageing problem serious threat present in state insulating materials the insulation safety of power equipment in middle power system, and shows
Ability of some solid insulating materials without self healing after defect occurs.Therefore, developing one kind has certain self-healing
The insulating composite material of ability, for improving the insulating reliability in power system, the maintenance spending for faulty equipment is saved,
Reduce because of insulation damage layer and the consumption of materials of write-off equipment, improving the economy of insulating materials application has great significance.
And root is according to research reports, the existing achievement in research applied in terms of conductive material of the self-healing material based on hydrogen bond, on insulation material
The self-healing research of material is still vacancy.
The content of the invention
The purpose of the present invention is that the life-span caused by voltage ageing phenomenon contracts in use to solve existing insulating materials
Subtract, it is necessary to the problem of repeatedly changing, propose one kind can self-healing composite insulating material and preparation method thereof, make obtained compound inslation
Material has certain self-healing ability, improves the service life of its reliability and material during use.
It is proposed by the present invention can self-healing composite insulating material be to be led to by the self-healing material component based on hydrogen bond and insulating materials
Cross made from the mode of solution blending；Self-healing material component based on hydrogen bond is more by aliphatic acid polymer mixture, aliphatic
Made from three kinds of raw materials of amine and urea, wherein the mass ratio of aliphatic acid polymer mixture and aliphatic polyamine is 1.1-4.8:1, fat
Fat acid polymer mixture is 12.6-24.6 with the intermediate of aliphatic polyamine reaction generation and the mass ratio of urea:1, insulation material
Material and the mass ratio of the self-healing material component based on hydrogen bond are 0.25-9:1 (so that insulating materials accounts for composite insulating material gross mass
20-90%).
The present invention proposition can self-healing composite insulating material preparation method through the following steps that realize：
(1) can self-healing composite insulating material first step preparation process：
It is 1.1-4.8 that (1-1), which weighs mass ratio,:1 aliphatic acid polymer mixture and aliphatic polyamine, using oil bath pan
12-36 hours are heated with 150-200 DEG C of temperature, nitrogen is passed to during reaction and is protected, while be subject to lasting machinery and stir
Mix, obtain midbody product；
The midbody product that (1-2) obtains step (1-1) is with urea with 12.6-24.6:After 1 mass ratio mixing, use
Oil bath pan heats 6-10 hours with 100-140 DEG C of temperature, passes to nitrogen during reaction and is protected, while is subject to lasting machine
Tool stirs, and obtains the self-healing material component based on hydrogen bond；
(2) can self-healing composite insulating material second step preparation process：
The self-healing material component based on hydrogen bond that (2-1) prepares step (1) is added in air dry oven with 60-80 DEG C
Hot 20-40min, makes it fully liquefy, and obtains the self-healing material component based on hydrogen bond with preferable mobility；
(2-2) by the self-healing material component based on hydrogen bond after abundant liquefaction be dissolved in solvent (solvent with based on hydrogen bond from
More material component mass ratio is 1-2:1) self-healing material solution is formed, and by after the container closure equipped with solution, is added with 60-80 DEG C
Hot 10-30min；
Insulating materials is added to the self-healing material solution obtained in step (2-2) and mixed and with 60-80 DEG C by (2-3)
1-3min is preheated, mechanical agitation 3-5min, obtains mixture solution；Epoxy resin and step (1-2) obtain based on hydrogen bond
The mass ratio of self-healing material component is 0.25-9:1 (so that epoxy resin accounts for the 20-90% of composite insulating material gross mass)；
The mixture solution that step (2-3) obtains is placed in vacuum drying chamber at 50-70 DEG C and vacuumized by (2-4),
20-40min is stood under vacuum environment causes the solvent in the mixture solution to be completely exhausted out；
The mixture for removing solvent is heated 12-24h by (2-5) at 60-100 DEG C makes its solidification, and obtaining finished product can self-healing
Composite insulating material.
The present invention uses the side of solution blending using self-healing material component and the mixed system of insulating materials based on hydrogen bond
Method, in vacuum environment heating remove solvent so that its curing molding obtain can self-healing insulating composite material.The present invention's
Can self-healing insulating composite material after mechanical damage is carried out, can recover original anti-after self-healing through mechanical test its tensile strength
The 70% of Zhang Qiangdu, it can return to and be differed with original specific insulation no more than 3% through electrical testing its specific insulation.
The present invention's can energy of the self-healing insulating composite material system with healing caused electric branch during voltage ageing
Power, self-healing can be able to by the small branch of processing procedure electric branch after Materials electric branch, and it is certainly
More the tree voltage that rises after declines no more than playing the 10% of tree voltage for the first time, and the insulating materials that can effectively heal delays in use
Electric branch caused by slow voltage ageing, so as to hinder the process that the aging of insulating barrier punctures, extends the service life of insulating materials, subtracts
The frequency that few insulating materials is changed, the permanent reliability used of insulating barrier is improved, for reducing because of the damage layer that insulate
And the consumption of materials of write-off equipment, the maintenance spending for faulty equipment is saved, the economy for improving insulating materials application has
Important meaning.
Embodiment
One kind proposed by the present invention can self-healing composite insulating material and preparation method thereof to combine example in detail as follows：
One kind proposed by the present invention can self-healing composite insulating material, it is characterised in that the composite insulating material be by based on
The self-healing material component and insulating materials of hydrogen bond are made from by way of solution blending；The self-healing material component based on hydrogen bond
Be as made from three kinds of aliphatic acid polymer mixture, aliphatic polyamine and urea raw materials, wherein aliphatic acid polymer mixture with
The mass ratio of aliphatic polyamine is 1.1-4.8:1, the intermediate that aliphatic acid polymer mixture generates with aliphatic polyamine reaction
Mass ratio with urea is 12.6-24.6:1, insulating materials and the mass ratio of the self-healing material component based on hydrogen bond are 0.25-9:1
(so that insulating materials accounts for the 20-90% of composite insulating material gross mass).
Fatty acid mono, fatty acid dimer, the matter of aliphatic acid tripolymer in selected aliphatic acid polymer mixture
It is (0.5-18%) to measure fraction:(50-98%):(1.5-32%).
Selected aliphatic polyamine is to have at least two in ethylenediamine, propane diamine, diethyl triamine, trientine
It is any in the aliphatic hydrocarbon of amino.
Selected solvent be the halogenated hydrocarbons such as dichloromethane, chloroform any of.
Selected insulating materials be bisphenol A type epoxy resin, bisphenol f type epoxy resin, bisphenol-s epoxy resin and
Any of novolac type epoxy resin.
The present invention it is above-mentioned can self-healing composite insulating material preparation method through the following steps that realize：
(1) can self-healing composite insulating material first step preparation process：
It is 1.1-4.8 that (1-1), which weighs mass ratio,:1 aliphatic acid polymer mixture and aliphatic polyamine, using oil bath pan
12-36 hours are heated with 150-200 DEG C of temperature, nitrogen is passed to during reaction and is protected, while be subject to lasting machinery and stir
Mix, obtain midbody product；
The midbody product that (1-2) obtains step (1-1) is with urea with 12.6-24.6:After 1 mass ratio mixing, use
Oil bath pan heats 6-10 hours with 100-140 DEG C of temperature, passes to nitrogen during reaction and is protected, while is subject to lasting machine
Tool stirs, and obtains the self-healing material component based on hydrogen bond；
(2) can self-healing composite insulating material second step preparation process：
The self-healing material component based on hydrogen bond that (2-1) prepares step (1) is added in air dry oven with 60-80 DEG C
Hot 20-40min, makes it fully liquefy, and obtains the self-healing material component based on hydrogen bond with preferable mobility；
(2-2) by the self-healing material component based on hydrogen bond after abundant liquefaction be dissolved in solvent (solvent with based on hydrogen bond from
More material component mass ratio is 1-2:1) self-healing material solution is formed, and by after the container closure equipped with solution, is added with 60-80 DEG C
Hot 10-30min；
Insulating materials is added to the self-healing material solution obtained in step (2-2) and mixed and with 60-80 DEG C by (2-3)
1-3min is preheated, mechanical agitation 3-5min, obtains mixture solution；Epoxy resin and step (1-2) obtain based on hydrogen bond
The mass ratio of self-healing material component is 0.25-9:1 (so that epoxy resin accounts for the 20-90% of composite insulating material gross mass)；
The mixture solution that step (2-3) obtains is placed in vacuum drying chamber at 50-70 DEG C and vacuumized by (2-4),
20-40min is stood under vacuum environment causes the solvent in the mixture solution to be completely exhausted out；
The mixture for removing solvent is heated 12-24h by (2-5) at 60-100 DEG C makes its solidification, and obtaining finished product can self-healing
Composite insulating material.
Technical solution of the present invention is not limited to act embodiment set forth below.
Specific embodiment one：
The present embodiment prepare can self-healing composite insulating material, be by self-healing material component and insulation material based on hydrogen bond
Expect bisphenol A type epoxy resin made from by way of solution blending.Self-healing material component based on hydrogen bond is more by aliphatic acid
(fatty acid mono, fatty acid dimer, the mass fraction of aliphatic acid tripolymer are 5% to aggressiveness mixture:82%:13%), two
Made from three kinds of raw materials of ethyl triamine and urea, wherein aliphatic acid polymer mixture and the mass ratio of diethyl triamine are 2.4:1,
Aliphatic acid polymer mixture is 14.6 with the intermediate of diethyl triamine reaction generation and the mass ratio of urea:1, bisphenol-A type ring
Oxygen tree fat and the mass ratio of the self-healing material component based on hydrogen bond are 1.6:1.
Can self-healing composite insulating material preparation method, itself through the following steps that realize：
(1) can self-healing composite insulating material first step preparation process：
(1-1) weighs 72g aliphatic acid polymer mixtures and 30g diethyl triamines (aliphatic acid polymer mixture and two
Ethyl triamine mass ratio is 2.4:1), use oil bath pan to be heated 36 hours with 200 DEG C of temperature, nitrogen progress is passed to during reaction
Protection, while it is subject to lasting mechanical agitation, obtain midbody product；
(midbody product is 14.6 with urea mass ratio to the midbody product that (1-2) obtains step (1-1) with 7g ureas:1)
After mixing, use oil bath pan to be heated 10 hours with 140 DEG C of temperature, nitrogen is passed to during reaction and is protected, while is held
Continuous mechanical agitation, obtain the self-healing material component based on hydrogen bond；
(2) can self-healing composite insulating material second step preparation process：
The self-healing material component based on hydrogen bond that (2-1) prepares step (1) is in air dry oven with 80 DEG C of heating
40min, it is fully liquefied, obtain the self-healing material component based on hydrogen bond with preferable mobility；
(2-2) by the self-healing material component based on hydrogen bond after abundant liquefaction be dissolved in 218g chloroforms (chloroform with
Self-healing material constituent mass ratio based on hydrogen bond is 2:1) self-healing material solution is formed, and by after the container closure equipped with solution,
With 80 DEG C of heating 30min；
The solution that 174g bisphenol A type epoxy resins are added in (2-2) is mixed and with 80 DEG C of preheating by (2-3)
3min, mechanical agitation 5min, obtains mixture solution；Bisphenol A type epoxy resin and step (1-2) obtain based on hydrogen bond from
More the mass ratio of material component is 1.6:1 (so that bisphenol A type epoxy resin accounts for the 60% of composite insulating material gross mass)；
The mixture solution of step (2-3) is placed in vacuum drying chamber at 70 DEG C and vacuumized by (2-4), in vacuum environment
Lower standing 40min causes the solvent in the mixture solution to be completely exhausted out；
The mixture for removing solvent heat 12h and makes its solidification by (2-5) at 100 DEG C, obtain finished product can self-healing it is compound exhausted
Edge material.
Specific embodiment two：
The present embodiment prepare can self-healing composite insulating material, be by self-healing material component and insulation material based on hydrogen bond
Expect bisphenol f type epoxy resin made from by way of solution blending.Self-healing material component based on hydrogen bond is more by aliphatic acid
(fatty acid mono, fatty acid dimer, the mass fraction of aliphatic acid tripolymer are 0.5% to aggressiveness mixture:98%:1.5%),
Made from three kinds of raw materials of trientine and urea, wherein the mass ratio of aliphatic acid polymer mixture and trientine is 3.2:
1, aliphatic acid polymer mixture is 12.6 with the intermediate of trientine reaction generation and the mass ratio of urea:1, bisphenol-f type
Epoxy resin and the mass ratio of the self-healing material component based on hydrogen bond are 9:1.
Can self-healing composite insulating material preparation method, itself through the following steps that realize：
(1) can self-healing composite insulating material first step preparation process：
(1-1) weighs 80g aliphatic acid polymer mixtures and 25g trientines (aliphatic acid polymer mixture and three
Tetramine mass ratio is 3.2:1), use oil bath pan to be heated 30 hours with 190 DEG C of temperature, nitrogen progress is passed to during reaction
Protection, while it is subject to lasting mechanical agitation, obtain midbody product；
(midbody product is 12.6 with urea mass ratio to the midbody product that (1-2) obtains step (1-1) with 8.3g ureas:
1) after mixing, use oil bath pan to be heated 8.5 hours with 135 DEG C of temperature, nitrogen is passed to during reaction and is protected, is subject to simultaneously
Lasting mechanical agitation, obtain the self-healing material component based on hydrogen bond；
(2) can self-healing composite insulating material second step preparation process：
The self-healing material component based on hydrogen bond that (2-1) prepares step (1) is in air dry oven with 80 DEG C of heating
30min, it is fully liquefied, obtain the self-healing material component based on hydrogen bond with preferable mobility；
(2-2) by the self-healing material component based on hydrogen bond after abundant liquefaction be dissolved in 204g chloroforms (chloroform with
Self-healing material constituent mass ratio based on hydrogen bond is 1.8:1) self-healing material solution is formed, and by the container closure equipped with solution
Afterwards, with 80 DEG C of heating 25min；
The solution that 1020g bisphenol f type epoxy resins are added in (2-2) is mixed and with 80 DEG C of preheating by (2-3)
2min, mechanical agitation 4min, obtains mixture solution；Bisphenol f type epoxy resin and step (1-2) obtain based on hydrogen bond from
More the mass ratio of material component is 9:1 (so that bisphenol f type epoxy resin accounts for the 90% of composite insulating material gross mass)；
The mixture solution of step (2-3) is placed in vacuum drying chamber at 65 DEG C and vacuumized by (2-4), in vacuum environment
Lower standing 30min causes the solvent in the mixture solution to be completely exhausted out；
The mixture for removing solvent is heated 18h by (2-5) at 90 DEG C makes its solidification, and obtaining finished product can self-healing compound inslation
Material.
Specific embodiment three：
The present embodiment prepare can self-healing composite insulating material, be by self-healing material component and insulation material based on hydrogen bond
Expect bisphenol-s epoxy resin made from by way of solution blending.Self-healing material component based on hydrogen bond is more by aliphatic acid
(fatty acid mono, fatty acid dimer, the mass fraction of aliphatic acid tripolymer are 12% to aggressiveness mixture:68%:20%), second
Made from three kinds of raw materials of diamines and urea, wherein the mass ratio of aliphatic acid polymer mixture and ethylenediamine is 4.8:1, aliphatic acid is more
Aggressiveness mixture is 21.5 with the intermediate of reacting ethylenediamine generation and the mass ratio of urea:1, bisphenol-s epoxy resin is with being based on
The mass ratio of the self-healing material component of hydrogen bond is 0.8:1.
Can self-healing composite insulating material preparation method, itself through the following steps that realize：
(1) can self-healing composite insulating material first step preparation process：
(1-1) weighs 86g aliphatic acid polymer mixtures and 18g ethylenediamines (aliphatic acid polymer mixture and ethylenediamine
Mass ratio is 4.8:1), use oil bath pan to be heated 20 hours with 160 DEG C of temperature, nitrogen is passed to during reaction and is protected, together
When be subject to lasting mechanical agitation, obtain midbody product；
(midbody product is 21.5 with urea mass ratio to the midbody product that (1-2) obtains step (1-1) with 4.8g ureas:
1) after mixing, use oil bath pan to be heated 7 hours with 120 DEG C of temperature, nitrogen is passed to during reaction and is protected, while is held
Continuous mechanical agitation, obtain the self-healing material component based on hydrogen bond；
(2) can self-healing composite insulating material second step preparation process：
The self-healing material component based on hydrogen bond that (2-1) prepares step (1) is in air dry oven with 70 DEG C of heating
25min, it is fully liquefied, obtain the self-healing material component based on hydrogen bond with preferable mobility；
(2-2) by the self-healing material component based on hydrogen bond after abundant liquefaction be dissolved in 131g dichloromethane (dichloromethane with
Self-healing material constituent mass ratio based on hydrogen bond is 1.2:1) self-healing material solution is formed, and by the container closure equipped with solution
Afterwards, with 70 DEG C of heating 20min；
The solution that 87g bisphenol-s epoxy resins are added in (2-2) is mixed and preheats 2min with 70 DEG C by (2-3),
Mechanical agitation 3min, obtains mixture solution；The self-healing material based on hydrogen bond that bisphenol-s epoxy resin obtains with step (1-2)
The mass ratio for expecting component is 0.8:1 (so that bisphenol-s epoxy resin accounts for the 44% of composite insulating material gross mass)；
The mixture solution of step (2-3) is placed in vacuum drying chamber at 55 DEG C and vacuumized by (2-4), in vacuum environment
Lower standing 25min causes the solvent in the mixture solution to be completely exhausted out；
The mixture for removing solvent is heated 20h by (2-5) at 75 DEG C makes its solidification, and obtaining finished product can self-healing compound inslation
Material.
Specific embodiment four：
The present embodiment prepare can self-healing composite insulating material, be by self-healing material component and insulation material based on hydrogen bond
Stockline phenol aldehyde type epoxy resin is made from by way of solution blending.Self-healing material component based on hydrogen bond is by aliphatic acid
(fatty acid mono, fatty acid dimer, the mass fraction of aliphatic acid tripolymer are 18% to polymer mixture:50%:32%),
Made from three kinds of raw materials of propane diamine and urea, wherein the mass ratio of aliphatic acid polymer mixture and propane diamine is 1.1:1, aliphatic acid
Polymer mixture is 24.6 with the intermediate of propane diamine reaction generation and the mass ratio of urea:1, novolac type epoxy resin with
The mass ratio of self-healing material component based on hydrogen bond is 0.25:1.
Can self-healing composite insulating material preparation method, itself through the following steps that realize：
(1) can self-healing composite insulating material first step preparation process：
(1-1) weighs 55g aliphatic acid polymer mixtures and 50g propane diamine (aliphatic acid polymer mixture and propane diamine
Mass ratio is 1.1:1), use oil bath pan to be heated 12 hours with 150 DEG C of temperature, nitrogen is passed to during reaction and is protected, together
When be subject to lasting mechanical agitation, obtain midbody product；
(midbody product is 24.6 with urea mass ratio to the midbody product that (1-2) obtains step (1-1) with 4.3g ureas:
1) after mixing, use oil bath pan to be heated 6 hours with 100 DEG C of temperature, nitrogen is passed to during reaction and is protected, while is held
Continuous mechanical agitation, obtain the self-healing material component based on hydrogen bond；
(2) can self-healing composite insulating material second step preparation process：
The self-healing material component based on hydrogen bond that (2-1) prepares step (1) is in air dry oven with 60 DEG C of heating
20min, it is fully liquefied, obtain the self-healing material component based on hydrogen bond with preferable mobility；
(2-2) by the self-healing material component based on hydrogen bond after abundant liquefaction be dissolved in 109g dichloromethane (dichloromethane with
Self-healing material constituent mass ratio based on hydrogen bond is 1:1) self-healing material solution is formed, and by after the container closure equipped with solution,
With 60 DEG C of heating 10min；
The solution that 27g novolac type epoxy resin is added in (2-2) is mixed and with 60 DEG C of preheating by (2-3)
1min, mechanical agitation 3min, obtains mixture solution；Novolac type epoxy resin and step (1-2) obtain based on hydrogen bond
Self-healing material component mass ratio be 0.25:1 (so that novolac type epoxy resin accounts for composite insulating material gross mass
20%)；
The mixture solution of step (2-3) is placed in vacuum drying chamber at 50 DEG C and vacuumized by (2-4), in vacuum environment
Lower standing 20min causes the solvent in the mixture solution to be completely exhausted out；
The mixture for removing solvent is heated 24h by (2-5) at 60 DEG C makes its solidification, and obtaining finished product can self-healing compound inslation
Material.
Claims (5)
1. one kind can self-healing composite insulating material, it is characterised in that the composite insulating material is by the self-healing material based on hydrogen bond
Component and insulating materials are made from by way of solution blending；The self-healing material component based on hydrogen bond is by aliphatic acid poly
Made from three kinds of body mixture, aliphatic polyamine and urea raw materials, the wherein matter of aliphatic acid polymer mixture and aliphatic polyamine
It is 1.1-4.8 to measure ratio:1, the intermediate of aliphatic acid polymer mixture and aliphatic polyamine reaction generation and the mass ratio of urea are
12.6-24.6:1, insulating materials and the mass ratio of the self-healing material component based on hydrogen bond are 0.25-9:1, described insulating materials
Among bisphenol A type epoxy resin, bisphenol f type epoxy resin, bisphenol-s epoxy resin and novolac type epoxy resin
It is any.
2. as claimed in claim 1 can self-healing composite insulating material, it is characterised in that selected aliphatic acid polymer mixing
Fatty acid mono, fatty acid dimer, the mass fraction of aliphatic acid tripolymer are (0.5-18%) in thing:(50-98%):
(1.5-32%).
3. as claimed in claim 1 can self-healing composite insulating material, it is characterised in that selected aliphatic polyamine is second two
Any of aliphatic hydrocarbon with least two amino in amine, propane diamine, diethyl triamine, trientine.
4. as claimed in claim 1 can self-healing composite insulating material, it is characterised in that selected solvent be dichloromethane,
Any of chloroform halogenated hydrocarbons.
5. it is a kind of as claimed in claim 1 can self-healing composite insulating material preparation method, it is characterised in that the preparation method
Through the following steps that realize：
(1) can self-healing composite insulating material first step preparation process：
It is 1.1-4.8 that (1-1), which weighs mass ratio,:1 aliphatic acid polymer mixture and aliphatic polyamine, use oil bath pan with
150-200 DEG C of temperature heating 12-36 hours, pass to nitrogen during reaction and protected, while be subject to lasting mechanical agitation,
Obtain midbody product；
The midbody product that (1-2) obtains step (1-1) is with urea with 12.6-24.6:After 1 mass ratio mixing, using oil bath
Pot heats 6-10 hours with 100-140 DEG C of temperature, passes to nitrogen during reaction and is protected, while is subject to lasting machinery and stirs
Mix, obtain the self-healing material component based on hydrogen bond；
(2) can self-healing composite insulating material second step preparation process：
The self-healing material component based on hydrogen bond that (2-1) prepares step (1) is in air dry oven with 60-80 DEG C of heating
20-40min, it is fully liquefied, obtain the self-healing material component based on hydrogen bond with preferable mobility；
The self-healing material component based on hydrogen bond after abundant liquefaction is dissolved in solvent and forms self-healing material solution by (2-2), solvent with
Self-healing material constituent mass ratio based on hydrogen bond is 1-2:1, and by after the container closure equipped with solution, 10- is heated with 60-80 DEG C
30min；
Insulating materials epoxy resin is added to the self-healing material solution obtained in step (2-2) and mixed and with 60- by (2-3)
80 DEG C of preheating 1-3min, mechanical agitation 3-5min, obtain mixture solution；Epoxy resin and step (1-2) obtain based on hydrogen
The mass ratio of the self-healing material component of key is 0.25-9:1 so that epoxy resin accounts for the 20-90% of composite insulating material gross mass；
The mixture solution that step (2-3) obtains is placed in vacuum drying chamber at 50-70 DEG C and vacuumized by (2-4), in vacuum
20-40min is stood under environment causes the solvent in the mixture solution to be completely exhausted out；
The mixture for removing solvent is heated 12-24h and makes its solidification by (2-5) at 60-100 DEG C, obtain finished product can self-healing it is compound
Insulating materials.
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| CN102365311A (en) * | 2009-04-02 | 2012-02-29 | 阿克马法国公司 | Use, as a shock absorber, of a material formed from branched molecules containing associative groups |
| CN103168079A (en) * | 2010-10-21 | 2013-06-19 | 阿肯马法国公司 | Composition including a mixture of a thermoplastic condensation polymer and a supramolecular polymer, and manufacturing method |
| CN104919626A (en) * | 2012-11-09 | 2015-09-16 | 里兰斯坦福初级大学理事会 | Seal-healing composites and applications thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102365311A (en) * | 2009-04-02 | 2012-02-29 | 阿克马法国公司 | Use, as a shock absorber, of a material formed from branched molecules containing associative groups |
| CN103168079A (en) * | 2010-10-21 | 2013-06-19 | 阿肯马法国公司 | Composition including a mixture of a thermoplastic condensation polymer and a supramolecular polymer, and manufacturing method |
| CN104919626A (en) * | 2012-11-09 | 2015-09-16 | 里兰斯坦福初级大学理事会 | Seal-healing composites and applications thereof |
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