CN109456598A - A kind of selfcurable insulative packaging material - Google Patents
A kind of selfcurable insulative packaging material Download PDFInfo
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- CN109456598A CN109456598A CN201810529907.5A CN201810529907A CN109456598A CN 109456598 A CN109456598 A CN 109456598A CN 201810529907 A CN201810529907 A CN 201810529907A CN 109456598 A CN109456598 A CN 109456598A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention belongs to insulating materials technical fields.The invention discloses a kind of selfcurable insulative packaging materials, are made by the raw material of following parts by weight: 30~60 parts of hydroxyl silicone resin, 10~20 parts of rubber elastomer, 30~60 parts of filler, 0~5 part of carbon black, 0~1 part of methoxy silane, 0~1 part of titanate esters.The present invention is able to solve insulating materials bad adaptability present in power construction and use process, and the Shortcomings in waterproof, moisture-proof, the fire-retardant performances such as ageing-resistant the problem of, selfcurable insulative packaging material in the present invention not only has good insulation performance, also there are the performances such as good waterproof, resistance to UV, heat-resisting, fire-retardant simultaneously, while it melts certainly, self-curing function admirable, can realize solidification in a short time and obtain excellent electrical breakdown withstand, impact resistance.
Description
Technical field
The present invention relates to insulating materials technical fields, more particularly, to a kind of selfcurable insulative packaging material.
Background technique
When needing to connect two high-tension cables, need to make transition joint to high-tension cable junction, wherein
It needs to be wound packaging material to exposed cable copper core and insulate, but in the prior art for handling high-tension cable junction
Insulation packaging material shape be difficult to change, it is difficult to targetedly constructed at the scene, for biggish engineering, applying man-hour requirement
The packaging material of a large amount of different shape sizes is carried, construction efficiency is low.
Simultaneously for the overhead bare conductor in power circuit, there is also too close, the electrical safety distances apart from building or tree face
Inadequate problem, these situations are also required to provide simple and effective insulation processing.In the prior art, grid power transmission route insulate
In material, tempered glass, porcelain, composite insulator are mainstream materials, but above-mentioned insulating materials is in antifouling, lightning protection, resist degradation
Performance is influenced unsatisfactory by material capability, type structure；In addition, the insulation of wire clamp exposed for 10kV aerial condutor is close
Envelope protection, the wire clamp huge number of aerial condutor, such as wedge clamp, parallel groove clamp, H-type wire clamp, but wire clamp is as connecting
The conductor connection electric armour clamp of electric current is easier influent gas than conducting wire, aqueous vapor is in wire clamp due to its special structure and position
Portion's knot is poly- to generate serious harm, will cause conducting wire and wire clamp oxidation, contact resistance increase, strength reduction, shortens the conducting wire service life
The problems such as.
Summary of the invention
To solve insulating materials bad adaptability present in above-mentioned power construction and use process, and anti-
On water, moisture-proof, the fire-retardant performances such as ageing-resistant the problem of Shortcomings, the present invention provides one kind to have good uv-resistance energy, resistance to
Hot property, flame retardant property, and intensity and resistance to breakdown capability can be obtained in time when shorter from performance is melted with outstanding
Selfcurable insulative packaging material.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of selfcurable insulative packaging material, is made by the raw material of following parts by weight:
30~60 parts of hydroxyl silicone resin, 10~20 parts of rubber elastomer, 30~60 parts of filler, 0~5 part of carbon black, methoxy silane
0~1 part, 0~1 part of titanate esters.
Using hydroxyl silicone resin and rubber elastomer as primary raw material in the present invention, both raw materials in air can be one
Fix time interior solidification, have the characteristics that before curing convenient for construction, can obtain again after hardening it is good insulate, waterproof and anti-impact
Hit performance.Filler is added as reinforcing agent, so that packaging material has certain intensity.The methoxy silane added in packaging material and
Titanate esters can improve the workability of packaging material, play the role of adjusting packaging material curing time and and improve each performance after solidification.
Preferably, selfcurable insulative packaging material is made by the raw material of following parts by weight: 30~60 parts of hydroxyl silicone resin, rubber
10~20 parts of elastomer, 30~60 parts of filler, 0.1~5 part of carbon black, 0.01~1 part of methoxy silane, titanate esters 0.01~1
Part.
Preferably, rubber elastomer is by butadiene rubber, butadiene-styrene rubber and silicon rubber by weight 4:(4~5): (1~
2).
Preferably, filler is by precipitated calcium carbonate, modified galapectite and white carbon black by weight 1:(1~1.5): (1.2~
1.4) mixing composition.
Preferably, the partial size of precipitated calcium carbonate is 100~150 microns, the partial size of white carbon black is 100~120 microns.
Preferably, the precipitated calcium carbonate in filler is first mixed with the silane coupling agent of its weight 1/20~1/10 before addition
Merge ball milling 20~30 minutes at 1000~1500rpm；White carbon black in filler before addition first with its weight 1/20~1/
10 silane coupling agent mixes and ball milling 20~30 minutes at 1000~1500rpm.
Filler is directly appended to can have binding performance in the organic material based on hydroxyl silicone resin and rubber elastomer
It is bad, it is difficult to the problems such as being uniformly distributed, therefore surface first is carried out to filler before addition and is modified, ball is carried out using silane coupling agent
The mechanical force surface of mill is modified, so that filler and organic material have better binding performance.
Preferably, modified galapectite is made by the raw material of following weight percent, galapectite 70~80wt%, N- methyl
2~3wt% of formamide, 4~6wt% of polyacrylamide, 2~10wt% of silane coupling agent, surplus are water.
Preferably, modified galapectite is made by following methods, by galapectite using dehydrated alcohol as medium 2000~
Galapectite, is then obtained by mixing by ball milling 30 under 2500rpm revolving speed~dry after forty minutes in potassium nitrate solution and nitric acid solution
Mixed solution in be ultrasonically treated 40~60 minutes and dry, then the galapectite of processing is calcined under 400~500 degrees Celsius
It is cooled to room temperature after 1.5~3 hours, then successively uses dehydrated alcohol and the cleaned galapectite of water；By silane coupling agent
It is added to the water, is subsequently added into through treated galapectite, then sequentially adds N-METHYLFORMAMIDE and polyacrylamide
Amine stirs evenly obtained mixed liquor, then by mixed liquor with revolving speed ball-milling treatment 1~1.5 hour of 1000~2000rpm, ball milling
It is successively cleaned and is dried with dehydrated alcohol and water after processing and modified galapectite is made.
Preferably, mixed solution presses body by 2.0~3.0mol/L potassium nitrate solution and 1.0~1.5mol/L nitric acid solution
Product is obtained by mixing than 1:1~1.5.
Preferably, the partial size of modified galapectite obtained is 70~130 microns.
Filler in the prior art is usually solid, hard inorganic particle, is added in rigid plastics, even add
Dosage is larger will not to cause problem, but in elastomer, inorganic filler additive amount crosses conference and causes elastomeric resilient
Degradation, while the binding performance between the direct added material of inorganic filler is not very good.It is added in filler in the present invention
Modified galapectite is to improve the above-mentioned problems of the prior art.Galapectite is a kind of phyllosilicate with abundant intermediary water
Mineral cause electrical imbalance after occupying silicon tetrahedron due to aluminium atom, so that surface and interlayer all have ion abundant, this
A bit as electrically uneven and caused by ion be it is more stable, in the present invention by by galapectite in nitric acid and potassium nitrate
The interlayer structure of galapectite is activated in mixed solution so that the alkali metal ion and alkaline-earth metal in its interlayer structure from
Sub- spark becomes to be more easier to be replaced, and calcination process later solidifies this activation effect, then again by the height with long-chain
Molecularly Imprinted Polymer and galapectite carry out mechanical force processing, so that the ion of the active end replacement interlayer of the polymer with long-chain,
So that the interlayer of galapectite is looked in high molecular polymer grafting, and to a certain extent supports the interlayer structure of galapectite greatly,
Expand galapectite interlamellar spacing, while add short chain organic matter by adjacent long chain macromolecule polymer bridges together, make
This be located at galapectite interlayer and that galapectite interlayer is supportted big high molecular polymer structure is more stable；By above-mentioned place
After reason, the interlamellar spacing of galapectite is become much larger, simultaneously because the effect of high molecular polymer is so that entire galapectite structure has
Certain elasticity, this improves the adverse effect of elastomeric resilient is influenced after previous inorganic filler addition, even if realizing nothing
The additive amount of machine filler increases also to the lesser effect of the influence of elastomeric resilient；Meanwhile in this way after organics modifications angstrom
Lip river stone have with hydroxyl silicone resin and the better binding performance of rubber elastomer, improve the mechanical property of packaging material.
Therefore, the invention has the following advantages: the selfcurable insulative packaging material in the present invention not only have it is good absolutely
Edge performance, while also there are the performances such as good waterproof, resistance to UV, heat-resisting, fire-retardant, while it melts certainly, self-curing function admirable, energy
Enough realize in a short time solidifies and obtains excellent electrical breakdown withstand, impact resistance.
Specific embodiment
Further description of the technical solution of the present invention With reference to embodiment.
Obviously, the described embodiments are merely a part of the embodiments of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, all other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
In the present invention, if not refering in particular to, all equipment and raw material is commercially available or the industry is common,
Method in following embodiments is unless otherwise instructed conventional method in that art.
Embodiment 1
A kind of selfcurable insulative packaging material, is made by the raw material of following parts by weight: 30 parts of hydroxyl silicone resin, 10 parts of rubber elastomer,
30 parts of filler.
Wherein, rubber elastomer is by butadiene rubber, butadiene-styrene rubber and silicon rubber by weight 4:4.5:1.5；Filler is by light
Matter calcium carbonate, modified galapectite and white carbon black are mixed by weight 1:1.2:1.3 and are formed；The partial size of precipitated calcium carbonate is 120 micro-
Rice, the partial size of white carbon black are 110 microns；Precipitated calcium carbonate before addition first mixed with the silane coupling agent of its weight 1/15 and
Ball milling 25 minutes under 1200rpm；White carbon black first mixes and at 1200rpm before addition with the silane coupling agent of its weight 1/15
Ball milling 25 minutes.
In addition, modified galapectite is made by the raw material of following weight percent, and galapectite 75wt%, N-METHYLFORMAMIDE
2wt%, polyacrylamide 4wt%, silane coupling agent 2wt%, water 17wt%；Modified galapectite is made by following methods, by galapectite
Using dehydrated alcohol as medium 2200rpm revolving speed under dried after ball milling 35 minutes, then by galapectite in 2.5mol/L potassium nitrate
It is ultrasonically treated 50 minutes and dries in solution and the 1.2mol/L nitric acid solution mixed solution that 1:1.2 is obtained by mixing by volume,
Then it is cooled to room temperature after the galapectite of processing being calcined 2 hours under 450 degrees Celsius, it is then successively clear with dehydrated alcohol and water
Galapectite of washing that treated；Silane coupling agent is added to the water, is subsequently added into through treated galapectite, then again according to
Secondary addition N-METHYLFORMAMIDE and polyacrylamide stir evenly obtained mixed liquor, then by mixed liquor with the revolving speed of 1500rpm
It ball-milling treatment 1.2 hours, is successively cleaned with dehydrated alcohol and water after ball-milling treatment and dries obtained modified galapectite；It is obtained to change
Property galapectite partial size be 100 microns.
Embodiment 2
A kind of selfcurable insulative packaging material, is made by the raw material of following parts by weight: 30 parts of hydroxyl silicone resin, 10 parts of rubber elastomer,
30 parts of filler, 0.1 part of carbon black, 0.01 part of methoxy silane, 0.01 part of titanate esters.
Wherein, rubber elastomer is by butadiene rubber, butadiene-styrene rubber and silicon rubber by weight 4:4:1；Filler is by lightweight carbon
Sour calcium, modified galapectite and white carbon black are mixed by weight 1:1:1.2 and are formed；The partial size of precipitated calcium carbonate is 100 microns, hard charcoal
Black partial size is 100 microns；Precipitated calcium carbonate first mixes and in 1000rpm before addition with the silane coupling agent of its weight 1/20
Lower ball milling 20 minutes；White carbon black is first mixed with the silane coupling agent of its weight 1/20 before addition and the ball milling 20 at 1000rpm
Minute.
In addition, modified galapectite is made by the raw material of following weight percent, and galapectite 70wt%, N-METHYLFORMAMIDE
2wt%, polyacrylamide 4wt%, silane coupling agent 2wt%, water 22wt%；Modified galapectite is made by following methods, by galapectite
Using dehydrated alcohol as medium 2000rpm revolving speed under dried after ball milling 30 minutes, then by galapectite in 2.0mol/L potassium nitrate
It is ultrasonically treated 40 minutes and dries in solution and the 1.0mol/L nitric acid solution mixed solution that 1:1 is obtained by mixing by volume, connect
The galapectite of processing is calcined 1.5 hours under 400 degrees Celsius after be cooled to room temperature, then successively with dehydrated alcohol and water it is clear
Galapectite of washing that treated；Silane coupling agent is added to the water, is subsequently added into through treated galapectite, then again according to
Secondary addition N-METHYLFORMAMIDE and polyacrylamide stir evenly obtained mixed liquor, then by mixed liquor with the revolving speed of 1000rpm
It ball-milling treatment 1 hour, is successively cleaned with dehydrated alcohol and water after ball-milling treatment and dries obtained modified galapectite；Modification obtained
The partial size of galapectite is 70 microns.
Embodiment 3
A kind of selfcurable insulative packaging material, is made by the raw material of following parts by weight: 40 parts of hydroxyl silicone resin, 12 parts of rubber elastomer,
40 parts of filler, 1 part of carbon black, 0.3 part of methoxy silane, 0.3 part of titanate esters.
Wherein, rubber elastomer is by butadiene rubber, butadiene-styrene rubber and silicon rubber by weight 4:4.5:1.5；Filler is by light
Matter calcium carbonate, modified galapectite and white carbon black are mixed by weight 1:1.1:1.25 and are formed；The partial size of precipitated calcium carbonate is 110 micro-
Rice, the partial size of white carbon black are 110 microns；Precipitated calcium carbonate before addition first mixed with the silane coupling agent of its weight 1/15 and
Ball milling 25 minutes under 1200rpm；White carbon black first mixes and at 1200rpm before addition with the silane coupling agent of its weight 1/15
Ball milling 25 minutes.
In addition, modified galapectite is made by the raw material of following weight percent, and galapectite 72wt%, N-METHYLFORMAMIDE
2.5wt%, polyacrylamide 4.5wt%, silane coupling agent 2wt%, water 19wt%；Modification galapectite is made by following methods, general angstrom
Lip river stone using dehydrated alcohol as medium 2100rpm revolving speed under dried after ball milling 35 minutes, then by galapectite in 2.3mol/L nitre
It is ultrasonically treated 45 minutes and dries in sour potassium solution and the 1.2mol/L nitric acid solution mixed solution that 1:1.2 is obtained by mixing by volume
It is dry, be cooled to room temperature after then calcine the galapectite of processing 2 hours under 400 degrees Celsius, then successively with dehydrated alcohol with
The cleaned galapectite of water；Silane coupling agent is added to the water, is subsequently added into through treated galapectite, then
It sequentially adds N-METHYLFORMAMIDE and polyacrylamide stirs evenly obtained mixed liquor, then by mixed liquor with 1200rpm's
It revolving speed ball-milling treatment 1.2 hours, is successively cleaned with dehydrated alcohol and water after ball-milling treatment and dries obtained modified galapectite；It is made
Modification galapectite partial size be 80 microns.
Embodiment 4
A kind of selfcurable insulative packaging material, is made by the raw material of following parts by weight: 50 parts of hydroxyl silicone resin, 17 parts of rubber elastomer,
50 parts of filler, 4 parts of carbon black, 0.7 part of methoxy silane, 0.8 part of titanate esters.
Wherein, rubber elastomer is by butadiene rubber, butadiene-styrene rubber and silicon rubber by weight 4:4.5:1.5；Filler is by light
Matter calcium carbonate, modified galapectite and white carbon black are mixed by weight 1:1.3:1.35 and are formed；The partial size of precipitated calcium carbonate is 140 micro-
Rice, the partial size of white carbon black are 110 microns；Precipitated calcium carbonate before addition first mixed with the silane coupling agent of its weight 1/15 and
Ball milling 25 minutes under 1300rpm；White carbon black first mixes and at 1300rpm before addition with the silane coupling agent of its weight 1/15
Ball milling 25 minutes.
In addition, modified galapectite is made by the raw material of following weight percent, and galapectite 76wt%, N-METHYLFORMAMIDE
2wt%, polyacrylamide 4wt%, silane coupling agent 2wt%, water 16wt%；Modified galapectite is made by following methods, by galapectite
Using dehydrated alcohol as medium 2400rpm revolving speed under dried after ball milling 35 minutes, then by galapectite in 2.8mol/L potassium nitrate
It is ultrasonically treated 55 minutes and dries in solution and the 1.4mol/L nitric acid solution mixed solution that 1:1.3 is obtained by mixing by volume,
Then it is cooled to room temperature after the galapectite of processing being calcined 2.5 hours under 500 degrees Celsius, then successively uses dehydrated alcohol and water
Cleaned galapectite；Silane coupling agent is added to the water, is subsequently added into through treated galapectite, then again
It sequentially adds N-METHYLFORMAMIDE and polyacrylamide stirs evenly obtained mixed liquor, then turn mixed liquor with 1700rpm
Fast ball-milling treatment 1.4 hours is successively cleaned with dehydrated alcohol and water after ball-milling treatment and dries obtained modified galapectite；It is obtained
The partial size of modified galapectite is 110 microns.
Embodiment 5
A kind of selfcurable insulative packaging material, is made by the raw material of following parts by weight: 60 parts of hydroxyl silicone resin, 20 parts of rubber elastomer,
60 parts of filler, 5 parts of carbon black, 1 part of methoxy silane, 1 part of titanate esters.
Wherein, rubber elastomer is by butadiene rubber, butadiene-styrene rubber and silicon rubber by weight 4:5:2；Filler is by lightweight carbon
Sour calcium, modified galapectite and white carbon black are mixed by weight 1:1.5:1.4 and are formed；The partial size of precipitated calcium carbonate is 150 microns, white
The partial size of carbon black is 120 microns；Precipitated calcium carbonate before addition first mixed with the silane coupling agent of its weight 1/10 and
Ball milling 30 minutes under 1500rpm；White carbon black is first mixed with the silane coupling agent of its weight 1/10 before addition and ball under 1500rpm
Mill 30 minutes.
In addition, modified galapectite is made by the raw material of following weight percent, and galapectite 80wt%, N-METHYLFORMAMIDE
3wt%, polyacrylamide 6wt%, silane coupling agent 4wt%, water 7wt%；Modified galapectite is made by following methods, and galapectite is existed
Ball milling is dried after forty minutes under using dehydrated alcohol as medium 2500rpm revolving speed, then that galapectite is molten in 3.0mol/L potassium nitrate
It is ultrasonically treated 60 minutes and dries in liquid and the 1.5mol/L nitric acid solution mixed solution that 1:1.5 is obtained by mixing by volume, connect
The galapectite of processing is calcined 3 hours under 500 degrees Celsius after be cooled to room temperature, then successively cleaned with dehydrated alcohol and water
Treated galapectite；Silane coupling agent is added to the water, is subsequently added into through treated galapectite, then again successively
N-METHYLFORMAMIDE is added and polyacrylamide stirs evenly obtained mixed liquor, then by mixed liquor with the revolving speed ball of 2000rpm
Mill processing 1.5 hours is successively cleaned with dehydrated alcohol and water after ball-milling treatment and dries obtained modified galapectite；Modification obtained
The partial size of galapectite is 130 microns.
Technical indicator:
1. curing time (20 degrees Celsius, 50% humidity): validity period after opening: 30 minutes, breakdown voltage reaches the 18kV time: 3 is small
When, it is fully cured the time: 7 days；
2. rear hardness is fully cured: 50(shore hardness A)；
3. breakdown voltage (1.8mm sheet material): 29.6kV；
4. dielectric dissipation factor: 0.26%；
5. dielectric constant: 3.29；
6. volume resistivity: 7.3 × 1014Ω·cm；
7. UV accelerated ageing performance: 2000 hours without significant change；
8. flame retardant property: V1；
9. cooling thermal impact (- 40 DEG C~85 DEG C): 200 circulations are without significant change；
10. ductility: 350%；
11. waterproof performance: cladding 525W(L) conducting wire insulate and do not puncture through 12kV4 hour immersion voltage testers；
12. the conducting wire of breakdown voltage (cladding 1.8mm 525W(L)): 25kV.
It should be understood that those skilled in the art, can be improved or be become according to the above description
It changes, and all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (10)
1. a kind of selfcurable insulative packaging material, it is characterised in that be made by the raw material of following parts by weight:
30~60 parts of hydroxyl silicone resin, 10~20 parts of rubber elastomer, 30~60 parts of filler, 0~5 part of carbon black, methoxy silane
0~1 part, 0~1 part of titanate esters.
2. a kind of selfcurable insulative packaging material according to claim 1, it is characterised in that be made by the raw material of following parts by weight:
30~60 parts of hydroxyl silicone resin, 10~20 parts of rubber elastomer, 30~60 parts of filler, 0.1~5 part of carbon black, methoxyl group silicon
0.01~1 part of alkane, 0.01~1 part of titanate esters.
3. a kind of selfcurable insulative packaging material according to claim 1, it is characterised in that:
The rubber elastomer is by butadiene rubber, butadiene-styrene rubber and silicon rubber by weight 4:(4~5): (1~2).
4. a kind of selfcurable insulative packaging material according to claim 1, it is characterised in that:
The filler is by precipitated calcium carbonate, modified galapectite and white carbon black by weight 1:(1~1.5): (1.2~1.4) are mixed
It is combined into.
5. a kind of selfcurable insulative packaging material according to claim 1, it is characterised in that:
The partial size of the precipitated calcium carbonate is 100~150 microns, and the partial size of the white carbon black is 100~120 microns.
6. a kind of selfcurable insulative packaging material according to claim 4 or 5, it is characterised in that:
Precipitated calcium carbonate in the filler first mixed with the silane coupling agent of its weight 1/20~1/10 before addition and
Ball milling 20~30 minutes under 1000~1500rpm；White carbon black in the filler before addition first with its weight 1/20~1/10
Silane coupling agent mixing and ball milling 20~30 minutes at 1000~1500rpm.
7. a kind of selfcurable insulative packaging material according to claim 4, it is characterised in that:
The modification galapectite is made by the raw material of following weight percent, 70~80wt% of galapectite, N-METHYLFORMAMIDE 2
~3wt%, 4~6wt% of polyacrylamide, 2~4wt% of silane coupling agent, surplus are water.
8. a kind of selfcurable insulative packaging material according to claim 7, it is characterised in that:
The modification galapectite is made by following methods, and galapectite is turned by 2000~2500rpm of medium of dehydrated alcohol
Fast ball milling 30 down~dry after forty minutes, the mixed solution for being then obtained by mixing galapectite in potassium nitrate solution and nitric acid solution
It is middle to be ultrasonically treated 40~60 minutes and dry, then the galapectite of processing is calcined 1.5~3 hours under 400~500 degrees Celsius
After be cooled to room temperature, then successively use dehydrated alcohol and the cleaned galapectite of water；Silane coupling agent is added to the water,
It is subsequently added into through treated galapectite, then sequentially adds N-METHYLFORMAMIDE and the polyacrylamide system of stirring evenly
Mixed liquor is obtained, then successively used mixed liquor after ball-milling treatment with revolving speed ball-milling treatment 1~1.5 hour of 1000~2000rpm
Dehydrated alcohol and water, which are cleaned and dried, is made modified galapectite.
9. a kind of selfcurable insulative packaging material according to claim 8, it is characterised in that:
The mixed solution is by 2.0~3.0mol/L potassium nitrate solution and 1.0~1.5mol/L nitric acid solution 1:1 by volume
~1.5 are obtained by mixing.
10. a kind of selfcurable insulative packaging material according to claim 8, it is characterised in that:
The partial size of the modified galapectite obtained is 70~130 microns.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110028897A (en) * | 2019-04-26 | 2019-07-19 | 广东阿尔派新材料股份有限公司 | A kind of lightweight selfcurable insulative material intelligently coated applied to overhead bare conductor |
| CN110498956A (en) * | 2019-09-07 | 2019-11-26 | 浙江康廷电子科技有限公司 | A kind of elastomer blended material with cable protection function |
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| CN110643322A (en) * | 2019-08-30 | 2020-01-03 | 宿迁市同创化工科技有限公司 | Preparation method of self-curing insulating packaging material glue |
| CN110498956A (en) * | 2019-09-07 | 2019-11-26 | 浙江康廷电子科技有限公司 | A kind of elastomer blended material with cable protection function |
| CN116041959A (en) * | 2022-12-13 | 2023-05-02 | 无锡海特新材料研究院有限公司 | High dielectric constant silicon rubber and preparation method thereof |
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