CN107858002A - A kind of shrinkage cable liquid silicon rubber composition and preparation method thereof - Google Patents
A kind of shrinkage cable liquid silicon rubber composition and preparation method thereof Download PDFInfo
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- 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
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Abstract
The invention discloses a kind of shrinkage cable liquid silicon rubber composition and preparation method thereof, the composition includes the component of following mass parts：The mass parts of vinyldimethicone 100, the mass parts of high-vinyl silicone oil 0.5 5, the mass parts of crosslinking agent 0.1 10, the mass parts of antiager 0.01 10, the mass parts of fume colloidal silica 20 50,0.001 0.5 mass parts of the mass parts of phenyl silicone oil 0.1 2, amino BTA or derivatives thereof of high phenyl content, the mass parts of platinum catalyst 0.001 0.5, the mass parts of inhibitor 0.001 0.5；Its preparation method includes the steps such as prepared by base rubber, AB glue is prepared, AB glue mixing.Shrinkage cable liquid silicon rubber composition of the present invention and preparation method thereof has the characteristics of ablation resistance is excellent, anti creepage trace performance is good and physical property is outstanding.
Description
Technical field
The present invention relates to liquid silicon rubber composition technical field, particularly a kind of shrinkage cable is combined with liquid silastic
Thing and preparation method thereof.
Background technology
Cold events technology has been invented by last century early seventies, Minnesota Mining and Manufacturing Company, while the technology applied to inactive
With naked light occasion（Mine, chemical industry）Cross-linked power cable annex, opened cold events cable accessory application new era；Electric power
Cable accessory refers to that the centre of various cables in cable run is continued and terminal fitting, and it forms conveying power network together with cable
Network；Cold-contraction cable accessory is the rubber components for having inside in erecting bed supporter（Including swagelok, pot head
With branch set etc.）It is enclosed on treated cable, extracts supporter out, it is shunk the close electricity for being coated on and being formed on cable
Cable joint and terminal.For shrink cable termination because its material property is excellent, do not get angry, elasticity is good, it is excellent that mounting process is convenient and swift etc.
Point has obtained the extensive use of industry.But cold shrinking power cable adjunct also proposes specific requirement to material：1st, it is long-term use of to need
Want material that there is good weatherability；2nd, it is elastical retraction situation to require material the characteristics of shrinkage to have good " elastic memory "
Well, that is, just have and relatively low determine to stretch deformation rate.3）Acid rain resistant corrosivity etc. requires that material has good anti creepage trace
Performance.4）The characteristics of expansion, needs material to have excellent physical property
Because silicon rubber has an excellent performance, such as remarkable ageing-resistant performance and weatherability, quick hydrophobicity migration and
Hydrophobicity is recovered, and outstanding insulating properties are kept within the scope of very wide temperature, and preferable tracking-resistant plays trace and arc resistance energy
Deng, and be hardly damaged because of light, impact resistance and in transport, installation process, through being got in cold shrinking power cable adjunct
To be more widely applied.Because organic silicon compounded rubber stock is using mould pressing process complexity, percent defective height, low production efficiency, dimensional accuracy
With presentation quality it is poor the problems such as.On the contrary, liquid silastic has a good mobility, processing characteristics is excellent.But state at present
Production liquid silastic still has two problems：1）Electrical property is not excellent enough, in terms of anti creepage trace performance and electric simulation strength
Still need to improve.2）Mechanical performance, which can not fully meet demand, especially tear strength and stretch deformation rate surely, requires higher.It is simultaneously full
The requirement of sufficient physical and mechanical properties.
In recent years many achievements were had been achieved for for application study of the silicon rubber on electric power.Correlation technique patent have with
Under it is several：
1）Chinese invention patent CN201510452188.8 reports the liquid fluorosilicone rubber for being used as chilling shrink type cable accessory, this
Class product has the characteristics of acid and alkali-resistance, electrical insulation capability is excellent because of the introducing of fluorosioloxane rubber.
2）Chinese invention patent CN201210429836.4 discloses a kind of cold-contraction type HV cable accessories liquid silicon
Rubber composition and preparation method thereof.This patent utilization nano-titanium oxide/oxidation Iron-complex-filling improves the performance of silica gel, makes liquid
Body silicon rubber is provided with excellent anti creepage trace performance and arc ablation resistance performance.
3）Chinese invention patent CN200810026977.5 discloses a kind of preparation side of cold-contraction type power silicone rubber sleeve
Method and application thereof.The introducing of this patent utilization fluorine silicon organic poly-molecular polymer was obtained with excellent anti-electric-mark, corrosion resistant
The silastic material of corrosion.
4）Chinese invention patent CN201610752063.1 reports a kind of cold shrinking power cable adjunct electrically insulating silicone rubber material
Material.This patent utilization nanometer grade silica and Nano titanium dioxide are obtained with the good silastic material that bounces back.
5）Chinese invention patent CN201610545369.X utilizes fluorine silicon raw rubber and mica powder and glass fibre etc.
Introduce the cold shrinking power cable adjunct liquid silastic for obtaining corrosion resistance.
6）Chinese invention patent CN201410302780.5 adds hard (china) clay and clay acquisition insulating properties are preferably cold
Contracting cable accessory liquid silastic.
But high-tension cable had both had excellent anti creepage trace performance and excellent physical using upper performance requirement at present
Can, above liquid silicon rubber composition is unsatisfactory for requiring.
The content of the invention
The main purpose of the present invention is the provision of a kind of shrinkage cable liquid silicon rubber composition and its preparation side
Method, there is the characteristics of ablation resistance is excellent, anti creepage trace performance is good and physical property is outstanding.
The present invention can be achieved through the following technical solutions：
The invention discloses a kind of shrinkage cable liquid silicon rubber composition, include the component of following mass parts：Vinyl gathers
The mass parts of dimethyl siloxane 100, high-vinyl silicone oil 0.5-5 mass parts, crosslinking agent 0.1-10 mass parts, antiager
0.01-10 mass parts, fume colloidal silica 20-50 mass parts, the phenyl silicone oil 0.1-2 mass parts of high phenyl content, aminobenzene
And triazole or derivatives thereof 0.001-0.5 mass parts, platinum catalyst 0.001-0.5 mass parts, inhibitor 0.001-0.5 matter
Measure part.
Further, the vinyldimethicone is the polydimethylsiloxanes containing vinyl units in molecule
The mixture of alkane or the different dimethyl silicone polymer of viscosity.
Further, between viscosity 10000-150000mpas of the dimethyl silicone polymer at 25 DEG C, vinyl
Content is between 0.1-0.3%.
Further, the crosslinking agent of stating is at least organopolysiloxane containing two Si -- H bonds or different hydrogen content silicon
The mixture of alkane, hydrogen content 0.3%-0.8%, the crosslinking agent are 0.5-5 mass parts.
Further, the antiager is the composition being made up of cerium oxide, titanium dioxide and ferroso-ferric oxide, its
Middle cerium oxide accounts for 50 ~ 80wt%, and titanium oxide and ferroso-ferric oxide account for 20 ~ 50wt% altogether, and the antiager is 0.5-5 mass
Part.
Further, the fume colloidal silica is the white carbon crossed by hydrophobic treatment, and its BET specific surface area is 200-
400m2/g, the inorganic agent of hydrophobic treatment is organosilazanes and/or organosilan and hydroxy silicon oil.The fume colloidal silica
For 20-30 mass parts.
Further, the phenyl silicone oil of the high phenyl content be viscosity be 50-200cs, index of refraction 1.48-1.50
Phenyl silicone oil, the phenyl silicone oil of the high phenyl content is 0.5-2 mass parts.
Further, the amino BTA includes 1- amino BTA, 4 amino BTAs, 5-
Amino benzotriazole and its derivative, the amino BTA are 0.02-0.1 mass parts.
Further, the inhibitor is alkynol class inhibitor, the alkynol class inhibitor include 1- ethynylcyclohexanols,
The compound such as 2- methyl -3- butynols and/or 3- methyl-dodecyne alcohol；The content of platinum is 300-700 in the Au catalyst
ppm。
A kind of preparation method of shrinkage cable liquid silicon rubber composition, comprises the following steps：
（1）It is prepared by base rubber：The mass parts of vinyldimethicone 100, with fume colloidal silica 20-50 mass parts, 5-15
It is uniform that mass parts silazane, 0.1-3 mass parts hydroxy silicon oils are put into first low-temperature mixed in banbury, and then heat up 150 DEG C of mixing 3
Hour, cooling down obtains base rubber；
（2）AB glue is prepared：By step（1）The mass parts of gained base rubber 100, high ethene silica gel, 5-30 matter plus 1-5 mass parts
Amount part vinyl polysiloxane, antiager 0.01-10 mass parts, platinum catalyst 0.001-0.5 mass parts are put into planet
Stirrer for mixing is uniform, obtains A glue；Then by step（1）The mass parts of gained base rubber 100, plus 5-30 mass parts vinyl
Polysiloxanes, 0.1-10 mass parts crosslinking agent, 0.001-0.5 mass parts amino BTAs or derivatives thereof, 0.1-2 mass
The phenyl silicone oil of the high phenyl content of part, 0.001-0.5 mass parts inhibitor are put into planetary mixer and are well mixed, and obtain B glue；
(3) AB glue mixes：By step（2）The AB glue of gained is according to mass ratio 1：1 is well mixed, solidifies 5- at 100-170 DEG C
30min can obtain described liquid silicon rubber composition.
Shrinkage cable of the present invention liquid silicon rubber composition has following beneficial technique effect：
Anti creepage trace performance be dummycable annex insulating materials under the conditions of rainwater, the ablation situation of high voltage electric arc, instead
The performance of heat-resisting, the fire-retardant and hydrophobic aspect of insulating materials is reflected.The present invention is improved from the following aspect：
1st, the present invention improves the resistance to of silica gel by introducing the heat-resistant aging agent being made up of cerium oxide, titanium dioxide and ferroso-ferric oxide
Hot property, the heat aging property of material is improved, so as to effectively improve ablation resistance, lift anti creepage trace performance；
2nd, present invention introduces low molecule amount, the phenyl silicone oil of high phenyl content, the hydrophobicity performance and hydrophobic of silastic surface are improved
Migration, the aggregation and infiltration of pollution liquid are prevented, so as to improve the anti creepage trace performance of sizing material.
3rd, being introduced present invention introduces triazole compounds such as amino BTAs improves the ablation resistance of silicon rubber
Energy.So as to lift material anti creepage trace performance.
4th, for the present invention on the basis of above method, the ratio for adjusting high-vinyl silicon oil dosage and H/Vi obtains height
The silastic material of physical property.
Embodiment
In order that those skilled in the art will better understand the technical solution of the present invention, with reference to embodiment and to this
Invention product is described in further detail.
The invention discloses a kind of shrinkage cable liquid silicon rubber composition, include the component of following mass parts：Ethene
The mass parts of base dimethyl silicone polymer 100, high-vinyl silicone oil 0.5-5 mass parts, crosslinking agent 0.1-10 mass parts are ageing-resistant to help
Agent 0.01-10 mass parts, fume colloidal silica 20-50 mass parts, the phenyl silicone oil 0.1-2 mass parts of high phenyl content, amino
BTA or derivatives thereof 0.001-0.5 mass parts, platinum catalyst 0.001-0.5 mass parts, inhibitor 0.001-0.5
Mass parts.
Further, the vinyldimethicone is the polydimethylsiloxanes containing vinyl units in molecule
The mixture of alkane or the different dimethyl silicone polymer of viscosity.
Further, between viscosity 10000-150000mpas of the dimethyl silicone polymer at 25 DEG C, vinyl
Content is between 0.1-0.3%.
Further, the crosslinking agent of stating is at least organopolysiloxane containing two Si -- H bonds or different hydrogen content silicon
The mixture of alkane, hydrogen content 0.3%-0.8%, the crosslinking agent are 0.5-5 mass parts.
Further, the antiager is the composition being made up of cerium oxide, titanium dioxide and ferroso-ferric oxide, its
Middle cerium oxide accounts for 50 ~ 80wt%, and titanium oxide and ferroso-ferric oxide account for 20 ~ 50wt% altogether, and the antiager is 0.5-5 mass
Part.
Further, the fume colloidal silica is the white carbon crossed by hydrophobic treatment, and its BET specific surface area is 200-
400m2/ g, the inorganic agent of hydrophobic treatment is organosilazanes and/or organosilan and hydroxy silicon oil.The fume colloidal silica
For 20-30 mass parts.
Further, the phenyl silicone oil of the high phenyl content be viscosity be 50-200cs, index of refraction 1.48-1.50
Phenyl silicone oil, the phenyl silicone oil of the high phenyl content is 0.5-2 mass parts.
Further, the amino BTA includes 1- amino BTA, 4 amino BTAs, 5-
Amino benzotriazole and its derivative, the amino BTA are 0.02-0.1 mass parts.
Further, the inhibitor is alkynol class inhibitor, the alkynol class inhibitor include 1- ethynylcyclohexanols,
The compound such as 2- methyl -3- butynols and/or 3- methyl-dodecyne alcohol；The content of platinum is 300-700 in the Au catalyst
ppm。
A kind of preparation method of shrinkage cable liquid silicon rubber composition, comprises the following steps：
（1）It is prepared by base rubber：The mass parts of vinyldimethicone 100, with fume colloidal silica 20-50 mass parts, 5-15
It is uniform that mass parts silazane, 0.1-3 mass parts hydroxy silicon oils are put into first low-temperature mixed in banbury, and then heat up 150 DEG C of mixing 3
Hour, cooling down obtains base rubber；
（2）AB glue is prepared：By step（1）The mass parts of gained base rubber 100, high ethene silica gel, 5-30 matter plus 1-5 mass parts
Amount part vinyl polysiloxane, antiager 0.01-10 mass parts, platinum catalyst 0.001-0.5 mass parts are put into planet
Stirrer for mixing is uniform, obtains A glue；Then by step（1）The mass parts of gained base rubber 100, plus 5-30 mass parts vinyl
Polysiloxanes, 0.1-10 mass parts crosslinking agent, 0.001-0.5 mass parts amino BTAs or derivatives thereof, 0.1-2 mass
The phenyl silicone oil of the high phenyl content of part, 0.001-0.5 mass parts inhibitor are put into planetary mixer and are well mixed, and obtain B glue；
(3) AB glue mixes：By step（2）The AB glue of gained is according to mass ratio 1：1 is well mixed, solidifies 5- at 100-170 DEG C
30min can obtain described liquid silicon rubber composition.
Embodiment 1
The invention discloses a kind of shrinkage cable liquid silicon rubber composition, include the component of following mass parts：Vinyl gathers
The mass parts of dimethyl siloxane 100, the mass parts of high-vinyl silicone oil 5, the mass parts of crosslinking agent 5, the mass parts of antiager 0.01,
The mass parts of fume colloidal silica 50, the mass parts of phenyl silicone oil 1.1, amino BTA or derivatives thereof of high phenyl content
0.001 mass parts, the mass parts of platinum catalyst 0.5, the mass parts of inhibitor 0.25.
In the present embodiment, the vinyldimethicone is the poly dimethyl containing vinyl units in molecule
The mixture of siloxanes or the different dimethyl silicone polymer of viscosity.Viscosity of the dimethyl silicone polymer at 25 DEG C
Between 10000-150000mpas, contents of ethylene is between 0.1-0.3%.The crosslinking agent of stating is at least to contain two Si-H
The mixture of the organopolysiloxane of key or different hydrogen content silane, hydrogen content 0.3%-0.8%.The antiager is served as reasons
The composition of cerium oxide, titanium dioxide and ferroso-ferric oxide composition, wherein cerium oxide account for 50 ~ 80wt%, titanium oxide and four oxidations three
Iron accounts for 20 ~ 50wt% altogether, and the antiager is 0.5-5 mass parts.The fume colloidal silica is crossed by hydrophobic treatment
White carbon, its BET specific surface area are 200-400m2/ g, the inorganic agent of hydrophobic treatment for organosilazanes and/or organosilan and
Hydroxy silicon oil.The phenyl silicone oil of the high phenyl content is the phenyl silicon that viscosity is 50-200cs, index of refraction is 1.48-1.50
Oil.The amino BTA includes 1- amino BTA, 4 amino BTAs, 5- amino BTAs
And its derivative.The inhibitor is alkynol class inhibitor, and the alkynol class inhibitor includes 1- ethynylcyclohexanols, 2- first
The compound such as base -3- butynols and/or 3- methyl-dodecyne alcohol；The content of platinum is 300-700 in the Au catalyst
ppm。
A kind of shrinkage cable liquid silicon rubber composition of the present embodiment is according to above-mentioned quality proportioning, by with lower section
Prepared by method：
（1）It is prepared by base rubber：The mass parts of vinyldimethicone 100, with fume colloidal silica, silazane, hydroxy silicon oil
It is uniform to be put into first low-temperature mixed in banbury, then heats up 150 DEG C and mixes 3 hours, cooling down obtains base rubber；
（2）AB glue is prepared：By step（1）Gained base rubber, the high ethene silica gel added, vinyl polysiloxane, ageing-resistant help
Agent, platinum catalyst are put into planetary mixer and are well mixed, and obtain A glue；Then by step（1）Gained base rubber, adds vinyl
Polysiloxanes, crosslinking agent, amino BTA or derivatives thereof, the phenyl silicone oil of high phenyl content, inhibitor are put into planet
Stirrer for mixing is uniform, obtains B glue；
(3) AB glue mixes：By step（2）The AB glue of gained is according to mass ratio 1：1 is well mixed, solidifies 5- at 100-170 DEG C
30min can obtain described liquid silicon rubber composition, and then 200 DEG C × 4h toasts two sections, obtains sample 1.
Its correlated performance is shown in Table one, and the anti creepage trace performance of silicon rubber meets 1A4.5, stretches deformation rate 3% surely.Tear is strong
Spend 40 kN/m, tensile strength 8.5MPa, elongation 780%.
Embodiment 2
The invention discloses a kind of shrinkage cable liquid silicon rubber composition, include the component of following mass parts：Vinyl gathers
The mass parts of dimethyl siloxane 100, the mass parts of high-vinyl silicone oil 2.5, the mass parts of crosslinking agent 0.1, the mass of antiager 10
Part, the mass parts of fume colloidal silica 35, the mass parts of phenyl silicone oil 0.1 of high phenyl content, amino BTA or its derivative
The mass parts of thing 0.5, the mass parts of platinum catalyst 0.025, the mass parts of inhibitor 0.001.
In the present embodiment, the vinyldimethicone is the poly dimethyl containing vinyl units in molecule
The mixture of siloxanes or the different dimethyl silicone polymer of viscosity.Viscosity of the dimethyl silicone polymer at 25 DEG C
Between 10000-150000mpas, contents of ethylene is between 0.1-0.3%.The crosslinking agent of stating is at least to contain two Si-H
The mixture of the organopolysiloxane of key or different hydrogen content silane, hydrogen content 0.3%-0.8%.The antiager is served as reasons
The composition of cerium oxide, titanium dioxide and ferroso-ferric oxide composition, wherein cerium oxide account for 50 ~ 80wt%, titanium oxide and four oxidations three
Iron accounts for 20 ~ 50wt% altogether.The fume colloidal silica is the white carbon crossed by hydrophobic treatment, and its BET specific surface area is 200-
400m2/ g, the inorganic agent of hydrophobic treatment is organosilazanes and/or organosilan and hydroxy silicon oil.The high phenyl content
Phenyl silicone oil is the phenyl silicone oil that viscosity is 50-200cs, index of refraction is 1.48-1.50, the phenyl silicone oil of the high phenyl content
For 0.5-2 mass parts.The amino BTA includes 1- amino BTA, 4 amino BTAs, 5- amino
Benzotriazole and its derivative, the amino BTA are 0.02-0.1 mass parts.The inhibitor presses down for alkynol class
Preparation, the alkynol class inhibitor include 1- ethynylcyclohexanols, 2- methyl -3- butynols and/or 3- methyl-dodecyne alcohol etc.
Compound；The content of platinum is 300-700 ppm in the Au catalyst.
A kind of shrinkage cable liquid silicon rubber composition of the present embodiment is according to above-mentioned quality proportioning, by with lower section
Prepared by method：
（1）It is prepared by base rubber：The mass parts of vinyldimethicone 100, with fume colloidal silica, silazane, hydroxy silicon oil
It is uniform to be put into first low-temperature mixed in banbury, then heats up 150 DEG C and mixes 3 hours, cooling down obtains base rubber；
（2）AB glue is prepared：By step（1）Gained base rubber, the high ethene silica gel added, vinyl polysiloxane, ageing-resistant help
Agent, platinum catalyst are put into planetary mixer and are well mixed, and obtain A glue；Then by step（1）Gained base rubber, adds vinyl
Polysiloxanes, crosslinking agent, amino BTA or derivatives thereof, the phenyl silicone oil of high phenyl content, inhibitor are put into planet
Stirrer for mixing is uniform, obtains B glue；
(3) AB glue mixes：By step（2）The AB glue of gained is according to mass ratio 1：1 is well mixed, solidifies 5- at 100-170 DEG C
30min can obtain described liquid silicon rubber composition, and then 200 DEG C × 4h toasts two sections, obtains sample 2.
Its correlated performance is shown in Table one, and the anti creepage trace performance of silicon rubber meets 1A4.5, stretches deformation rate 2% surely.Tear is strong
Spend 42 kN/m, tensile strength 9MPa, elongation 800%.
Embodiment 3
The invention discloses a kind of shrinkage cable liquid silicon rubber composition, include the component of following mass parts：Vinyl gathers
The mass parts of dimethyl siloxane 100, the mass parts of high-vinyl silicone oil 0.5, the mass parts of crosslinking agent 10, the mass parts of antiager 5,
The mass parts of fume colloidal silica 20, the mass parts of phenyl silicone oil 2, amino BTA or derivatives thereof 0.25 of high phenyl content
Mass parts, the mass parts of platinum catalyst 0.001, the mass parts of inhibitor 0.5.
In the present embodiment, the vinyldimethicone is the poly dimethyl containing vinyl units in molecule
The mixture of siloxanes or the different dimethyl silicone polymer of viscosity.Viscosity of the dimethyl silicone polymer at 25 DEG C
Between 10000-150000mpas, contents of ethylene is between 0.1-0.3%.The crosslinking agent of stating is at least to contain two Si-H
The mixture of the organopolysiloxane of key or different hydrogen content silane, hydrogen content 0.3%-0.8%.The antiager is served as reasons
The composition of cerium oxide, titanium dioxide and ferroso-ferric oxide composition, wherein cerium oxide account for 50 ~ 80wt%, titanium oxide and four oxidations three
Iron accounts for 20 ~ 50wt% altogether.The fume colloidal silica is the white carbon crossed by hydrophobic treatment, and its BET specific surface area is 200-
400m2/ g, the inorganic agent of hydrophobic treatment is organosilazanes and/or organosilan and hydroxy silicon oil.The high phenyl content
Phenyl silicone oil is the phenyl silicone oil that viscosity is 50-200cs, index of refraction is 1.48-1.50.The amino BTA includes
1- amino BTA, 4 amino BTAs, 5- amino benzotriazole and its derivatives, the inhibitor are alkynol
Class inhibitor, the alkynol class inhibitor include 1- ethynylcyclohexanols, 2- methyl -3- butynols and/or 3- methyl-dodecyne
The compounds such as alcohol；The content of platinum is 300-700 ppm in the Au catalyst.
A kind of shrinkage cable liquid silicon rubber composition of the present embodiment is according to above-mentioned quality proportioning, by with lower section
Prepared by method：
（1）It is prepared by base rubber：The mass parts of vinyldimethicone 100, with fume colloidal silica, silazane, hydroxy silicon oil
It is uniform to be put into first low-temperature mixed in banbury, then heats up 150 DEG C and mixes 3 hours, cooling down obtains base rubber；
（2）AB glue is prepared：By step（1）Gained base rubber, the high ethene silica gel added, vinyl polysiloxane, ageing-resistant help
Agent, platinum catalyst are put into planetary mixer and are well mixed, and obtain A glue；Then by step（1）Gained base rubber, adds vinyl
Polysiloxanes, crosslinking agent, amino BTA or derivatives thereof, the phenyl silicone oil of high phenyl content, inhibitor are put into planet
Stirrer for mixing is uniform, obtains B glue；
(3) AB glue mixes：By step（2）The AB glue of gained is according to mass ratio 1：1 is well mixed, solidifies 5- at 100-170 DEG C
30min can obtain described liquid silicon rubber composition, and then 200 DEG C × 4h toasts two sections, obtains sample 3.Its correlation
One can be shown in Table, the anti creepage trace performance of silicon rubber meets 1A4.5, stretches deformation rate 2% surely.The kN/m of tearing strength 42, stretching are strong
Spend 9.2MPa, elongation 810%.
Embodiment 4
The invention discloses a kind of shrinkage cable liquid silicon rubber composition, include the component of following mass parts：Vinyl gathers
The mass parts of dimethyl siloxane 100, the mass parts of high-vinyl silicone oil 5, crosslinking agent are 2.75 mass parts, antiager 0.5
Mass parts, fume colloidal silica are 30 mass parts, and the phenyl silicone oil of high phenyl content is 1.25 mass parts, the nitrogen of amino benzo three
Azoles is 0.1 mass parts, the mass parts of platinum catalyst 0.25, the mass parts of inhibitor 0.001.
In the present embodiment, the vinyldimethicone is the poly dimethyl containing vinyl units in molecule
The mixture of siloxanes or the different dimethyl silicone polymer of viscosity.Viscosity of the dimethyl silicone polymer at 25 DEG C
Between 10000-150000mpas, contents of ethylene is between 0.1-0.3%.The crosslinking agent of stating is at least to contain two Si-H
The mixture of the organopolysiloxane of key or different hydrogen content silane, hydrogen content 0.3%-0.8%.The antiager is served as reasons
The composition of cerium oxide, titanium dioxide and ferroso-ferric oxide composition, wherein cerium oxide account for 50 ~ 80wt%, titanium oxide and four oxidations three
Iron accounts for 20 ~ 50wt% altogether.The fume colloidal silica is the white carbon crossed by hydrophobic treatment, and its BET specific surface area is 200-
400m2/ g, the inorganic agent of hydrophobic treatment is organosilazanes and/or organosilan and hydroxy silicon oil.The high phenyl content
Phenyl silicone oil is the phenyl silicone oil that viscosity is 50-200cs, index of refraction is 1.48-1.50.The amino BTA includes
1- amino BTA, 4 amino BTAs, 5- amino benzotriazole and its derivatives.The inhibitor is alkynol
Class inhibitor, the alkynol class inhibitor include 1- ethynylcyclohexanols, 2- methyl -3- butynols and/or 3- methyl-dodecyne
The compounds such as alcohol；The content of platinum is 300-700 ppm in the Au catalyst.
A kind of shrinkage cable liquid silicon rubber composition of the present embodiment is according to above-mentioned quality proportioning, by with lower section
Prepared by method：
（1）It is prepared by base rubber：The mass parts of vinyldimethicone 100, with fume colloidal silica, silazane, hydroxy silicon oil
It is uniform to be put into first low-temperature mixed in banbury, then heats up 150 DEG C and mixes 3 hours, cooling down obtains base rubber；
（2）AB glue is prepared：By step（1）Gained base rubber, the high ethene silica gel added, vinyl polysiloxane, ageing-resistant help
Agent, platinum catalyst are put into planetary mixer and are well mixed, and obtain A glue；Then by step（1）Gained base rubber, adds vinyl
Polysiloxanes, crosslinking agent, amino BTA or derivatives thereof, the phenyl silicone oil of high phenyl content, inhibitor are put into planet
Stirrer for mixing is uniform, obtains B glue；
(3) AB glue mixes：By step（2）The AB glue of gained is according to mass ratio 1：1 is well mixed, solidifies 5- at 100-170 DEG C
30min can obtain described liquid silicon rubber composition, and then 200 DEG C × 4h toasts two sections, obtains sample 4.Its correlation
One can be shown in Table, the anti creepage trace performance of silicon rubber meets 1A4.5, stretches deformation rate 2% surely.The kN/m of tearing strength 43, stretching are strong
Spend 9.5MPa, elongation 820%.
Embodiment 5
The invention discloses a kind of shrinkage cable liquid silicon rubber composition, include the component of following mass parts：Vinyl gathers
The mass parts of dimethyl siloxane 100, the mass parts of high-vinyl silicone oil 2.75, crosslinking agent are 0.5 mass parts, antiager 5
Mass parts, fume colloidal silica are 25 mass parts, and the phenyl silicone oil of high phenyl content is 0.5 mass parts, amino BTA
For 0.1 mass parts, the mass parts of platinum catalyst 0.5, the mass parts of inhibitor 0.25.
In the present embodiment, the vinyldimethicone is the poly dimethyl containing vinyl units in molecule
The mixture of siloxanes or the different dimethyl silicone polymer of viscosity.Viscosity of the dimethyl silicone polymer at 25 DEG C
Between 10000-150000mpas, contents of ethylene is between 0.1-0.3%.The crosslinking agent of stating is at least to contain two Si-H
The mixture of the organopolysiloxane of key or different hydrogen content silane, hydrogen content 0.3%-0.8%.The antiager is served as reasons
The composition of cerium oxide, titanium dioxide and ferroso-ferric oxide composition, wherein cerium oxide account for 50 ~ 80wt%, titanium oxide and four oxidations three
Iron accounts for 20 ~ 50wt% altogether.The fume colloidal silica is the white carbon crossed by hydrophobic treatment, and its BET specific surface area is 200-
400m2/ g, the inorganic agent of hydrophobic treatment is organosilazanes and/or organosilan and hydroxy silicon oil.The high phenyl content
Phenyl silicone oil is the phenyl silicone oil that viscosity is 50-200cs, index of refraction is 1.48-1.50.The amino BTA includes
1- amino BTA, 4 amino BTAs, 5- amino benzotriazole and its derivatives.The inhibitor is alkynol
Class inhibitor, the alkynol class inhibitor include 1- ethynylcyclohexanols, 2- methyl -3- butynols and/or 3- methyl-dodecyne
The compounds such as alcohol；The content of platinum is 300-700 ppm in the Au catalyst.
A kind of shrinkage cable liquid silicon rubber composition of the present embodiment is according to above-mentioned quality proportioning, by with lower section
Prepared by method：
（1）It is prepared by base rubber：The mass parts of vinyldimethicone 100, with fume colloidal silica, silazane, hydroxy silicon oil
It is uniform to be put into first low-temperature mixed in banbury, then heats up 150 DEG C and mixes 3 hours, cooling down obtains base rubber；
（2）AB glue is prepared：By step（1）Gained base rubber, the high ethene silica gel added, vinyl polysiloxane, ageing-resistant help
Agent, platinum catalyst are put into planetary mixer and are well mixed, and obtain A glue；Then by step（1）Gained base rubber, adds vinyl
Polysiloxanes, crosslinking agent, amino BTA or derivatives thereof, the phenyl silicone oil of high phenyl content, inhibitor are put into planet
Stirrer for mixing is uniform, obtains B glue；
(3) AB glue mixes：By step（2）The AB glue of gained is according to mass ratio 1：1 is well mixed, solidifies 5- at 100-170 DEG C
30min can obtain described liquid silicon rubber composition, and then 200 DEG C × 4h toasts two sections, obtains sample 5.Its correlation
One can be shown in Table, the proof tracking of silicon rubber can meet anti creepage trace demand, stretch deformation rate 2% surely.Tearing strength 43
KN/m, the MPa of tensile strength 10, elongation 850%.
Embodiment 6
The invention discloses a kind of shrinkage cable liquid silicon rubber composition, include the component of following mass parts：Vinyl gathers
The mass parts of dimethyl siloxane 100, the mass parts of high-vinyl silicone oil 0.5, crosslinking agent are 5 mass parts, antiager 2.5
Mass parts, fume colloidal silica are 20 mass parts, and the phenyl silicone oil of high phenyl content is 2 mass parts, amino BTA is
0.12 mass parts, the mass parts of platinum catalyst 0.001, the mass parts of inhibitor 0.5.
In the present embodiment, the vinyldimethicone is the poly dimethyl containing vinyl units in molecule
The mixture of siloxanes or the different dimethyl silicone polymer of viscosity.Viscosity of the dimethyl silicone polymer at 25 DEG C
Between 10000-150000mpas, contents of ethylene is between 0.1-0.3%.The crosslinking agent of stating is at least to contain two Si-H
The mixture of the organopolysiloxane of key or different hydrogen content silane, hydrogen content 0.3%-0.8%.The antiager is served as reasons
The composition of cerium oxide, titanium dioxide and ferroso-ferric oxide composition, wherein cerium oxide account for 50 ~ 80wt%, titanium oxide and four oxidations three
Iron accounts for 20 ~ 50wt% altogether.The fume colloidal silica is the white carbon crossed by hydrophobic treatment, and its BET specific surface area is 200-
400m2/ g, the inorganic agent of hydrophobic treatment is organosilazanes and/or organosilan and hydroxy silicon oil.The high phenyl content
Phenyl silicone oil is the phenyl silicone oil that viscosity is 50-200cs, index of refraction is 1.48-1.50.The amino BTA includes
1- amino BTA, 4 amino BTAs, 5- amino benzotriazole and its derivatives.The inhibitor is alkynol
Class inhibitor, the alkynol class inhibitor include 1- ethynylcyclohexanols, 2- methyl -3- butynols and/or 3- methyl-dodecyne
The compounds such as alcohol；The content of platinum is 300-700 ppm in the Au catalyst.
A kind of shrinkage cable liquid silicon rubber composition of the present embodiment is according to above-mentioned quality proportioning, by with lower section
Prepared by method：
（1）It is prepared by base rubber：The mass parts of vinyldimethicone 100, with fume colloidal silica, silazane, hydroxy silicon oil
It is uniform to be put into first low-temperature mixed in banbury, then heats up 150 DEG C and mixes 3 hours, cooling down obtains base rubber；
（2）AB glue is prepared：By step（1）Gained base rubber, the high ethene silica gel added, vinyl polysiloxane, ageing-resistant help
Agent, platinum catalyst are put into planetary mixer and are well mixed, and obtain A glue；Then by step（1）Gained base rubber, adds vinyl
Polysiloxanes, crosslinking agent, amino BTA or derivatives thereof, the phenyl silicone oil of high phenyl content, inhibitor are put into planet
Stirrer for mixing is uniform, obtains B glue；
(3) AB glue mixes：By step（2）The AB glue of gained is according to mass ratio 1：1 is well mixed, solidifies 5- at 100-170 DEG C
30min can obtain described liquid silicon rubber composition, and then 200 DEG C × 4h toasts two sections, obtains sample 6.Its correlation
One can be shown in Table, the anti creepage trace performance of silicon rubber meets 1A4.5, stretches deformation rate 2% surely.The kN/m of tearing strength 42, stretching are strong
9 MPa are spent, elongation 800%. carries out performance test, the specific test result such as institute of table 1 to the product obtained by Application Example simultaneously
Show：
Table 1：Embodiment performance parameter table
Explanation：1）Surely the test condition for stretching deformation rate is elongation 200%, 120 DEG C × 15 hours；2）Anti creepage trace performance root
Tested according to national standard GB/T 6553-2014 methods.
The foregoing is only a preferred embodiment of the present invention, not makees any formal limitation to the present invention；It is all
The those of ordinary skill of the industry can be shown in by specification and described above and swimmingly implement the present invention；It is but all familiar
Professional and technical personnel without departing from the scope of the present invention, makes using disclosed above technology contents
A little variation, modification and evolution equivalent variations, be the present invention equivalent embodiment；Meanwhile all realities according to the present invention
Variation, modification and evolution of any equivalent variations that matter technology is made to above example etc., still fall within the technology of the present invention
Within the protection domain of scheme.
Claims (10)
1. a kind of shrinkage cable liquid silicon rubber composition, it is characterised in that include the component of following mass parts：
The mass parts of vinyldimethicone 100, high-vinyl silicone oil 0.5-5 mass parts, crosslinking agent 0.1-10 mass parts,
Antiager 0.01-10 mass parts, fume colloidal silica 20-50 mass parts, the phenyl silicone oil 0.1-2 mass of high phenyl content
Part, amino BTA or derivatives thereof 0.001-0.5 mass parts, platinum catalyst 0.001-0.5 mass parts, inhibitor
0.001-0.5 mass parts.
2. shrinkage cable liquid silicon rubber composition according to claim 1, it is characterised in that：The vinyl poly- two
Methylsiloxane is the dimethyl silicone polymer containing vinyl units or the different dimethyl silicone polymer of viscosity in molecule
Mixture.
3. shrinkage cable liquid silicon rubber composition according to claim 1 or 2, it is characterised in that：The poly- diformazan
Between viscosity 10000-150000mpas of the radical siloxane at 25 DEG C, contents of ethylene is between 0.1-0.3%.
4. shrinkage cable liquid silicon rubber composition according to claim 3, it is characterised in that：The crosslinking agent of stating is
At least mixture of the organopolysiloxane containing two Si -- H bonds or different hydrogen content silane, hydrogen content 0.3%-0.8%, institute
It is 0.5-5 mass parts to state crosslinking agent.
5. shrinkage cable liquid silicon rubber composition according to claim 4, it is characterised in that：The antiager
For the composition being made up of cerium oxide, titanium dioxide and ferroso-ferric oxide, wherein cerium oxide accounts for 50~80wt%, titanium oxide and four
Fe 3 O accounts for 20~50wt% altogether, and the antiager is 0.5-5 mass parts.
6. shrinkage cable liquid silicon rubber composition according to claim 5, it is characterised in that：The vapor phase method hard charcoal
Black is the white carbon crossed by hydrophobic treatment, and its BET specific surface area is 200-400m2/ g, the inorganic agent of hydrophobic treatment is organic
Silazane and/or organosilan and hydroxy silicon oil；The fume colloidal silica is 20-30 mass parts.
7. shrinkage cable liquid silicon rubber composition according to claim 6, it is characterised in that：The high phenyl content
Phenyl silicone oil be viscosity is 50-200cs, index of refraction is 1.48-1.50 phenyl silicone oil, the phenyl silicon of the high phenyl content
Oil is 0.5-2 mass parts.
8. shrinkage cable liquid silicon rubber composition according to claim 7, it is characterised in that：The amino benzo three
Nitrogen azoles includes 1- amino BTA, 4 amino BTAs, 5- amino benzotriazole and its derivatives, the ammonia
Base BTA is 0.02-0.1 mass parts.
9. shrinkage cable liquid silicon rubber composition according to claim 8, it is characterised in that：The inhibitor is alkynes
Alcohols inhibitor, the alkynol class inhibitor include 1- ethynylcyclohexanols, 2- methyl -3- butynols and/or 3- methyl-ten two
The compounds such as alkynol；The content of platinum is 300-700 ppm in the Au catalyst.
A kind of 10. preparation method of the claim 1~9 shrinkage cable liquid silicon rubber composition, it is characterised in that bag
Include following steps：
（1）It is prepared by base rubber：The mass parts of vinyldimethicone 100, with fume colloidal silica 20-50 mass parts, 5-15
It is uniform that mass parts silazane, 0.1-3 mass parts hydroxy silicon oils are put into first low-temperature mixed in banbury, and then heat up 150 DEG C of mixing 3
Hour, cooling down obtains base rubber；
（2）AB glue is prepared：By step（1）The mass parts of gained base rubber 100, high ethene silicone oil, 5-30 matter plus 1-5 mass parts
Amount part vinyl polysiloxane, antiager 0.01-10 mass parts, platinum catalyst 0.001-0.5 mass parts are put into planet
Stirrer for mixing is uniform, obtains A glue；Then by step（1）The mass parts of gained base rubber 100, plus 5-30 mass parts vinyl
Polysiloxanes, 0.1-10 mass parts crosslinking agent, 0.001-0.5 mass parts amino BTAs or derivatives thereof, 0.1-2 mass
The phenyl silicone oil of the high phenyl content of part, 0.001-0.5 mass parts inhibitor are put into planetary mixer and are well mixed, and obtain B glue；
(3) AB glue mixes：By step（2）The AB glue of gained is according to mass ratio 1：1 is well mixed, solidifies 5- at 100-170 DEG C
30min can obtain described liquid silicon rubber composition.
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| CN110343390A (en) * | 2019-06-13 | 2019-10-18 | 东莞市南炬高分子材料有限公司 | A kind of electric power cold shrink sleeve silica gel material and preparation method thereof |
| CN111334047A (en) * | 2018-12-19 | 2020-06-26 | 中蓝晨光化工研究设计院有限公司 | Direct-current leakage tracking resistant electric insulation silicone rubber and preparation method thereof |
| CN111349342A (en) * | 2020-03-31 | 2020-06-30 | 广东聚合科技有限公司 | Silicone rubber for cold-shrinkage power cable accessories and preparation method thereof |
| CN113637328A (en) * | 2021-07-21 | 2021-11-12 | 浙江新安化工集团股份有限公司 | Flame-retardant insulating silicone rubber and preparation method thereof |
| CN113999531A (en) * | 2021-11-19 | 2022-02-01 | 广州市瑞合新材料科技有限公司 | Mold glue and preparation method thereof |
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| CN111349342A (en) * | 2020-03-31 | 2020-06-30 | 广东聚合科技有限公司 | Silicone rubber for cold-shrinkage power cable accessories and preparation method thereof |
| CN113637328A (en) * | 2021-07-21 | 2021-11-12 | 浙江新安化工集团股份有限公司 | Flame-retardant insulating silicone rubber and preparation method thereof |
| CN113637328B (en) * | 2021-07-21 | 2022-03-25 | 浙江新安化工集团股份有限公司 | Flame-retardant insulating silicone rubber and preparation method thereof |
| CN114854206A (en) * | 2021-11-08 | 2022-08-05 | 中国电力科学研究院有限公司 | Silicone rubber material for high-voltage cable accessories and preparation method thereof |
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