CN109943074A - A kind of modified silicon rubber cable sheath material and preparation method thereof - Google Patents
A kind of modified silicon rubber cable sheath material and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a kind of modified silicon rubber cable sheath materials and preparation method thereof.The present invention is by silicon rubber, fluorubber, fluorine silicone rubber, dimethyl silicone polymer, polyvinylidene fluoride, after major ingredient is made in dibutyl tin dilaurate, it joined epoxidized soybean oil, modified graphene oxide, stearic acid, white carbon black, soft kaolin, aluminium hydroxide, nano silica, rare earth oxide is modified it, in the preparation process of modified graphene oxide, by the bridge linking effect of toluene di-isocyanate(TDI) will be bis- (3- aminopropyl) polyethylene glycol be grafted to the surface of graphene oxide, improve itself and white carbon black, soft kaolin, aluminium hydroxide, compatibility between nano silica and rare earth oxide, the compatibility of system is good, make each substance performance complement, significantly improve the high-low temperature resistant stability of cable sheath material, tensile strength, oil resistivity, resistance to ag(e)ing.
Description
Technical field
The present invention relates to cable sheath material technical field, in particular to a kind of modified silicon rubber cable sheath material and its
Preparation method.
Background technique
With rapid development of economy, the demand of cable sheath material is increasing, it is desirable that and it is higher and higher, with environmental protection
And the increasingly strict and novel sheath material of recycling regulation continues to bring out, traditional cable material is faced with huge choose
War.Silicon rubber refers to that main chain contains the specific rubber of silicon, oxygen atom, is mainly characterized by not only high temperature resistant but also low temperature resistant, can be -60
It is used for a long time at DEG C (or lower temperature) to+250 DEG C (or higher temperature), is cold-resistant best at present, high-temperature resistant rubber；
Electrical insulating property is excellent simultaneously, and very high to the stability of thermal oxide and ozone, chemical inertness is big.Silicon rubber becomes rubber in power industry
The most potential kind of glue, is widely used in the main sizing material of insulator, high-performance wire and cable and attachment.But silicon rubber
The mechanical performance of glue is poor, haves the defects that heat resistance and oil resistivity are less desirable with its cable made.
Summary of the invention
The purpose of the present invention is intended to provide a kind of modified silicon rubber cable sheath material and preparation method thereof, above-mentioned to solve
Technical problem.
To achieve the goals above, the technical solution of the present invention is as follows:
In a first aspect, a kind of modified silicon rubber cable sheath material provided by the invention, by it is following according to parts by weight
Raw material is made: 30~60 parts of silicon rubber, 10~25 parts of fluorubber, 5~15 parts of fluorine silicone rubber, 1~5 part of dimethyl silicone polymer,
5~15 parts of polyvinylidene fluoride, 0.1~1 part of dibutyl tin dilaurate, 1~5 part of epoxidized soybean oil, modified graphene oxide 4
~10 parts, 2~6 parts of stearic acid, 3~10 parts of white carbon black, 3~8 parts of soft kaolin, 5~10 parts of aluminium hydroxide, nanometer titanium dioxide
1~5 part of silicon, 0.5~3 part of rare earth oxide.
Preferably, the modified graphene oxide is to be made using following methods: by graphene oxide ultrasonic disperse in N,
The dispersion liquid that graphene oxide is obtained in dinethylformamide, under the protection of inert gas, to resulting graphene oxide
Dispersion liquid in toluene di-isocyanate(TDI) is added, react 16~28 hours, be added under the protection of inert gas double at -5~5 DEG C
(3- aminopropyl) polyethylene glycol, continue insulation reaction 6~10 hours, stood, be filtered, washed, be dried to obtain it is modified oxidized
Graphene.
It is further preferred that the weight ratio of the graphene oxide and the toluene di-isocyanate(TDI) is 0.05~0.2:1.
It is further preferred that the weight ratio of the graphene oxide and bis- (3- aminopropyl) polyethylene glycol is 0.01
~0.1:1.
Preferably, the average grain diameter of the aluminium hydroxide is 1~4 μm.
Preferably, the average grain diameter of the nano silica is 100~200nm.
Preferably, the rare earth oxide is cerium oxide.
Preferably, the modified silicon rubber cable sheath material is made: silicon rubber of following raw materials according to parts by weight
52 parts of glue, 21 parts of fluorubber, 13 parts of fluorine silicone rubber, 3.5 parts of dimethyl silicone polymer, 11 parts of polyvinylidene fluoride, tin dilaurate
0.2 part of dibutyl tin, 4 parts of epoxidized soybean oil, 8 parts of modified graphene oxide, 5 parts of stearic acid, 7 parts of white carbon black, soft kaolin 7
Part, 7 parts of aluminium hydroxide, 4 parts of nano silica, 2 parts of rare earth oxide.
Preferably, the modified silicon rubber cable sheath material is made: silicon rubber of following raw materials according to parts by weight
48.2 parts of glue, 20 parts of fluorubber, 12 parts of fluorine silicone rubber, 4 parts of dimethyl silicone polymer, 12 parts of polyvinylidene fluoride, tin dilaurate
0.2 part of dibutyl tin, 4 parts of epoxidized soybean oil, 7 parts of modified graphene oxide, 5 parts of stearic acid, 7 parts of white carbon black, soft kaolin 7
Part, 8 parts of aluminium hydroxide, 4 parts of nano silica, 1.8 parts of rare earth oxide.
Second aspect, a kind of preparation of modified silicon rubber cable sheath material as described in relation to the first aspect provided by the invention
Method includes the following steps:
(1) silicon rubber, fluorubber, fluorine silicone rubber are added in mixer, under the conditions of 70~90 DEG C, mixing 5~
15min adds dimethyl silicone polymer, polyvinylidene fluoride, dibutyl tin dilaurate into mixer, continues to keep the temperature mixing
5~15min obtains major ingredient；
(2) by epoxidized soybean oil, modified graphene oxide, stearic acid, white carbon black, soft kaolin, aluminium hydroxide, nanometer
Silica, rare earth oxide are added in step (1) resulting major ingredient, under the conditions of 70~90 DEG C, 10~30min of mixing；
(3) under the conditions of 100~120 DEG C, mixing 5~15min, Bao Tong 2~5 times；Then heat to 120~140 DEG C, it is close
Refine 3~10min, Bao Tong 3~8 times, then prolonged by flattener molded, obtain modified silica-gel cable sheath material.
Compared with prior art, the beneficial effects of the present invention are:
The present invention is by silicon rubber, fluorubber, fluorine silicone rubber, dimethyl silicone polymer, polyvinylidene fluoride, tin dilaurate two
After major ingredient is made in butyl tin, epoxidized soybean oil, modified graphene oxide, stearic acid, white carbon black, soft kaolin, hydrogen joined
Aluminium oxide, nano silica, rare earth oxide are modified it, in the preparation process of modified graphene oxide, pass through
The bridge linking effect of toluene di-isocyanate(TDI) will be bis- (3- aminopropyl), and polyethylene glycol is grafted to the surface of graphene oxide, improves
Its compatibility between white carbon black, soft kaolin, aluminium hydroxide, nano silica and rare earth oxide, system it is compatible
Property is good, makes each substance performance complement, significantly improve the high-low temperature resistant stability of cable sheath material, tensile strength, oil resistivity,
Resistance to ag(e)ing.
Specific embodiment
Specific embodiments of the present invention will be further explained below.It should be noted that for these implementations
The explanation of mode is used to help understand the present invention, but and does not constitute a limitation of the invention.In addition, invention described below
Technical characteristic involved in each embodiment can be combined with each other as long as they do not conflict with each other.
Embodiment 1
A kind of preparation method of modified silicon rubber cable sheath material provided in this embodiment, includes the following steps:
(1) dispersion liquid that graphene oxide ultrasonic disperse is obtained to graphene oxide in n,N-Dimethylformamide,
Under the protection of inert gas, toluene di-isocyanate(TDI) is added into the dispersion liquid of resulting graphene oxide, is reacted at -5~5 DEG C
20 hours, bis- (3- aminopropyl) polyethylene glycol are added under the protection of inert gas, continue insulation reaction 8 hours, stood,
It is filtered, washed, is dried to obtain modified graphene oxide, wherein the weight of the graphene oxide and the toluene di-isocyanate(TDI)
Amount is than being 0.1:1；The weight ratio of the graphene oxide and bis- (3- aminopropyl) polyethylene glycol is 0.05:1；
(2) raw material of following portions by weight: 52 parts of silicon rubber, 21 parts of fluorubber, 13 parts of fluorine silicone rubber, poly dimethyl is weighed
3.5 parts of siloxanes, 11 parts of polyvinylidene fluoride, 0.2 part of dibutyl tin dilaurate, 4 parts of epoxidized soybean oil, modified graphite oxide
8 parts of alkene, 5 parts of stearic acid, 7 parts of white carbon black, 7 parts of soft kaolin, 7 parts of aluminium hydroxide (average grain diameter is 2 μm), nanometer titanium dioxide
4 parts of silicon (average grain diameter 120nm), 2 parts of cerium oxide；Silicon rubber, fluorubber, fluorine silicone rubber are added in mixer, at 75 DEG C
Under the conditions of, mixing 12min adds dimethyl silicone polymer, polyvinylidene fluoride, dibutyl tin dilaurate into mixer,
Continue to keep the temperature mixing 10min, obtains major ingredient；By epoxidized soybean oil, modified graphene oxide, stearic acid, white carbon black, soft kaolinite
Soil, aluminium hydroxide, nano silica, cerium oxide are added in step (1) resulting major ingredient, under the conditions of 80 DEG C, mixing
20min；Under the conditions of 115 DEG C, mixing 10min, Bao Tong 4 times；135 DEG C, mixing 8min, Bao Tong 5 times are then heated to, then by prolonging
Press prolongs molded, obtains modified silica-gel cable sheath material.
The performance test results of the resulting cable sheath material of the present embodiment are as follows: tensile strength 33.4Mpa, extension at break
Rate is 410%, oxidation index 42, and energy long-term stable work, low-temperature impact brittle temperature reach -108 under 100 DEG C of environment
DEG C, ageing-resistant test (136 DEG C × 168h): elongation at break conservation rate is 95.3%, and tensile strength change rate is 98.5%, resistance to
Oiliness tests (20# machine oil, 100 DEG C × 80h): elongation at break conservation rate is 94.4%, and tensile strength change rate is 91.2%.
Embodiment 2
A kind of preparation method of modified silicon rubber cable sheath material provided in this embodiment, includes the following steps:
(1) dispersion liquid that graphene oxide ultrasonic disperse is obtained to graphene oxide in n,N-Dimethylformamide,
Under the protection of inert gas, toluene di-isocyanate(TDI) is added into the dispersion liquid of resulting graphene oxide, is reacted at -5~5 DEG C
20 hours, bis- (3- aminopropyl) polyethylene glycol are added under the protection of inert gas, continue insulation reaction 8 hours, stood,
It is filtered, washed, is dried to obtain modified graphene oxide, wherein the weight of the graphene oxide and the toluene di-isocyanate(TDI)
Amount is than being 0.1:1；The weight ratio of the graphene oxide and bis- (3- aminopropyl) polyethylene glycol is 0.05:1；
(2) raw material of following portions by weight: 48.2 parts of silicon rubber, 20 parts of fluorubber, 12 parts of fluorine silicone rubber, poly- diformazan is weighed
4 parts of radical siloxane, 12 parts of polyvinylidene fluoride, 0.2 part of dibutyl tin dilaurate, 4 parts of epoxidized soybean oil, modified graphite oxide
7 parts of alkene, 5 parts of stearic acid, 7 parts of white carbon black, 7 parts of soft kaolin, 8 parts of aluminium hydroxide (average grain diameter is 2 μm), nanometer titanium dioxide
4 parts of silicon (average grain diameter 150nm), 1.8 parts of cerium oxide；Silicon rubber, fluorubber, fluorine silicone rubber are added in mixer, 80
Under the conditions of DEG C, mixing 10min adds dimethyl silicone polymer, polyvinylidene fluoride, di lauric dibutyl into mixer
Tin continues to keep the temperature mixing 12min, obtains major ingredient；By epoxidized soybean oil, modified graphene oxide, stearic acid, white carbon black, soft
Kaolin, aluminium hydroxide, nano silica, cerium oxide are added in step (1) resulting major ingredient, close under the conditions of 80 DEG C
Refine 22min；Under the conditions of 110 DEG C, mixing 10min, Bao Tong 4 times；130 DEG C, mixing 3~10min, Bao Tong 6 times are then heated to,
Prolonged again by flattener molded, obtains modified silica-gel cable sheath material.
The performance test results of the resulting cable sheath material of the present embodiment are as follows: tensile strength 31.5Mpa, extension at break
Rate is 402%, oxidation index 41, and energy long-term stable work, low-temperature impact brittle temperature reach -105 under 100 DEG C of environment
DEG C, ageing-resistant test (136 DEG C × 168h): elongation at break conservation rate is 97.4%, and tensile strength change rate is 97.8%, resistance to
Oiliness tests (20# machine oil, 100 DEG C × 80h): elongation at break conservation rate is 95.3%, and tensile strength change rate is 92.5%.
Embodiment 3
A kind of preparation method of modified silicon rubber cable sheath material provided in this embodiment, includes the following steps:
(1) dispersion liquid that graphene oxide ultrasonic disperse is obtained to graphene oxide in n,N-Dimethylformamide,
Under the protection of inert gas, toluene di-isocyanate(TDI) is added into the dispersion liquid of resulting graphene oxide, is reacted at -5~5 DEG C
28 hours, bis- (3- aminopropyl) polyethylene glycol are added under the protection of inert gas, continue to keep the temperature anti-10 hours, stood,
It is filtered, washed, is dried to obtain modified graphene oxide, wherein the weight of the graphene oxide and the toluene di-isocyanate(TDI)
Amount is than being 0.2:1；The weight ratio of the graphene oxide and bis- (3- aminopropyl) polyethylene glycol is 0.1:1；
(2) raw material of following portions by weight: 30 parts of silicon rubber, 10 parts of fluorubber, 5 parts of fluorine silicone rubber, poly dimethyl is weighed
1 part of siloxanes, 5 parts of polyvinylidene fluoride, 0.2 part of dibutyl tin dilaurate, 1 part of epoxidized soybean oil, modified graphene oxide 4
Part, 2 parts of stearic acid, 3 parts of white carbon black, 3 parts of soft kaolin, 5 parts of aluminium hydroxide (average grain diameter is 2 μm), nano silica
1 part of (average grain diameter 200nm), 0.5 part of cerium oxide；Silicon rubber, fluorubber, fluorine silicone rubber are added in mixer, at 70 DEG C
Under the conditions of, mixing 15min adds dimethyl silicone polymer, polyvinylidene fluoride, dibutyl tin dilaurate into mixer,
Continue to keep the temperature mixing 15min, obtains major ingredient；By epoxidized soybean oil, modified graphene oxide, stearic acid, white carbon black, soft kaolinite
Soil, aluminium hydroxide, nano silica, cerium oxide are added in step (1) resulting major ingredient, under the conditions of 70 DEG C, mixing
30min；Under the conditions of 100 DEG C, mixing 15min, Bao Tong 5 times；Then heat to 120 DEG C, mixing 10min, Bao Tong 3 times, then by
Flattener prolongs molded, obtains modified silica-gel cable sheath material.
The performance test results of the resulting cable sheath material of the present embodiment are as follows: tensile strength 27.8Mpa, extension at break
Rate is 382%, oxidation index 33, and energy long-term stable work, low-temperature impact brittle temperature reach -85 under 100 DEG C of environment
DEG C, ageing-resistant test (136 DEG C × 168h): elongation at break conservation rate is 89.4%, and tensile strength change rate is 91.2%, resistance to
Oiliness tests (20# machine oil, 100 DEG C × 80h): elongation at break conservation rate is 84.3%, and tensile strength change rate is 87.2%.
Embodiment 4
A kind of preparation method of modified silicon rubber cable sheath material provided in this embodiment, includes the following steps:
(1) dispersion liquid that graphene oxide ultrasonic disperse is obtained to graphene oxide in n,N-Dimethylformamide,
Under the protection of inert gas, toluene di-isocyanate(TDI) is added into the dispersion liquid of resulting graphene oxide, is reacted at -5~5 DEG C
16 hours, bis- (3- aminopropyl) polyethylene glycol are added under the protection of inert gas, continue insulation reaction 6 hours, stood,
It is filtered, washed, is dried to obtain modified graphene oxide, wherein the weight of the graphene oxide and the toluene di-isocyanate(TDI)
Amount is than being 0.05:1；The weight ratio of the graphene oxide and bis- (3- aminopropyl) polyethylene glycol is 0.01:1；
(2) raw material of following portions by weight: 60 parts of silicon rubber, 25 parts of fluorubber, 15 parts of fluorine silicone rubber, poly dimethyl is weighed
5 parts of siloxanes, 15 parts of polyvinylidene fluoride, 0.5 part of dibutyl tin dilaurate, 5 parts of epoxidized soybean oil, modified graphene oxide
10 parts, 6 parts of stearic acid, 10 parts of white carbon black, 8 parts of soft kaolin, 10 parts of aluminium hydroxide (average grain diameter is 2 μm), nano-silica
5 parts of SiClx (average grain diameter 100nm), 3 parts of cerium oxide；Silicon rubber, fluorubber, fluorine silicone rubber are added in mixer, 90
Under the conditions of DEG C, mixing 5min adds dimethyl silicone polymer, polyvinylidene fluoride, dibutyl tin dilaurate into mixer,
Continue to keep the temperature mixing 5min, obtains major ingredient；By epoxidized soybean oil, modified graphene oxide, stearic acid, white carbon black, soft kaolinite
Soil, aluminium hydroxide, nano silica, cerium oxide are added in step (1) resulting major ingredient, under the conditions of 90 DEG C, mixing
10min；Under the conditions of 120 DEG C, mixing 5min, Bao Tong 2 times；140 DEG C, mixing 3min, Bao Tong 3 times are then heated to, then by prolonging
Press prolongs molded, obtains modified silica-gel cable sheath material.
The performance test results of the resulting cable sheath material of the present embodiment are as follows: tensile strength 28.4Mpa, extension at break
Rate is 364%, oxidation index 35, and energy long-term stable work, low-temperature impact brittle temperature reach -88 under 100 DEG C of environment
DEG C, ageing-resistant test (136 DEG C × 168h): elongation at break conservation rate is 92.5%, and tensile strength change rate is 87.4%, resistance to
Oiliness tests (20# machine oil, 100 DEG C × 80h): elongation at break conservation rate is 86.2%, and tensile strength change rate is 84.4%.
Embodiment 5
Beneficial effect in order to further illustrate the present invention is made, modified silicon using preparation method similar to Example 1
The difference of glue cable sheath material, the present embodiment and embodiment 1 is only that the parts by weight of raw material used by step (2) not
Together；Raw material used by the present embodiment, according to parts by weight, comprising: 45 parts of silicon rubber, 15 parts of fluorubber, 10 parts of fluorine silicone rubber,
3 parts of dimethyl silicone polymer, 10 parts of polyvinylidene fluoride, 0.2 part of dibutyl tin dilaurate, 3 parts of epoxidized soybean oil, modified oxygen
7 parts of graphite alkene, 4 parts of stearic acid, 6 parts of white carbon black, 5 parts of soft kaolin, aluminium hydroxide (average grain diameter is 2 μm) 6 part, nanometers
4 parts of silica, 1 part of cerium oxide.
The performance test results of the resulting cable sheath material of the present embodiment are as follows: tensile strength 31.2Mpa, extension at break
Rate is 389%, oxidation index 39, and energy long-term stable work, low-temperature impact brittle temperature reach -101 under 100 DEG C of environment
DEG C, ageing-resistant test (136 DEG C × 168h): elongation at break conservation rate is 91.8%, and tensile strength change rate is 92.5%, resistance to
Oiliness tests (20# machine oil, 100 DEG C × 80h): elongation at break conservation rate is 90.3%, and tensile strength change rate is 89.5%.
Embodiment 6
Beneficial effect in order to further illustrate the present invention is made, modified silicon using preparation method similar to Example 1
The difference of glue cable sheath material, the present embodiment and embodiment 1 is only that the parts by weight of raw material used by step (2) not
Together；Raw material used by the present embodiment, according to parts by weight, comprising: 48 parts of silicon rubber, 20 parts of fluorubber, 11 parts of fluorine silicone rubber,
4 parts of dimethyl silicone polymer, 8 parts of polyvinylidene fluoride, 0.4 part of dibutyl tin dilaurate, 3 parts of epoxidized soybean oil, modified oxygen
7 parts of graphite alkene, 3 parts of stearic acid, 7 parts of white carbon black, 6 parts of soft kaolin, aluminium hydroxide (average grain diameter is 2 μm) 6 part, nanometers
3 parts of silica (average grain diameter 120nm), 1.5 parts of cerium oxide.
The performance test results of the resulting cable sheath material of the present embodiment are as follows: tensile strength 30.4Mpa, extension at break
Rate is 384%, oxidation index 39, and energy long-term stable work, low-temperature impact brittle temperature reach -102 under 100 DEG C of environment
DEG C, ageing-resistant test (136 DEG C × 168h): elongation at break conservation rate is 95.3%, and tensile strength change rate is 92.1%, resistance to
Oiliness tests (20# machine oil, 100 DEG C × 80h): elongation at break conservation rate is 90.4%, and tensile strength change rate is 84.4%.
Embodiment 7
Beneficial effect in order to further illustrate the present invention is made, modified silicon using preparation method similar to Example 1
The difference of glue cable sheath material, the present embodiment and embodiment 1 is only that the parts by weight of raw material used by step (2) not
Together；Raw material used by the present embodiment, according to parts by weight, comprising: 52 parts of silicon rubber, 24 parts of fluorubber, 14 parts of fluorine silicone rubber,
3 parts of dimethyl silicone polymer, 12 parts of polyvinylidene fluoride, 0.3 part of dibutyl tin dilaurate, 4 parts of epoxidized soybean oil, modified oxygen
8 parts of graphite alkene, 5 parts of stearic acid, 7 parts of white carbon black, 5 parts of soft kaolin, aluminium hydroxide (average grain diameter is 2 μm) 8 part, nanometers
3 parts of silica (average grain diameter 120nm), 2.5 parts of cerium oxide.
The performance test results of the resulting cable sheath material of the present embodiment are as follows: tensile strength 31.4Mpa, extension at break
Rate is 375%, oxidation index 38, and energy long-term stable work, low-temperature impact brittle temperature reach -98 under 100 DEG C of environment
DEG C, ageing-resistant test (136 DEG C × 168h): elongation at break conservation rate is 93.1%, and tensile strength change rate is 89.1%, resistance to
Oiliness tests (20# machine oil, 100 DEG C × 80h): elongation at break conservation rate is 90.2%, and tensile strength change rate is 87.2%.
Embodiment 8
The preparation method for present embodiments providing a kind of cable sheath material, includes the following steps:
Weigh the raw material of following portions by weight: 52 parts of silicon rubber, 21 parts of fluorubber, 13 parts of fluorine silicone rubber, poly dimethyl silicon
3.5 parts of oxygen alkane, 11 parts of polyvinylidene fluoride, 0.2 part of dibutyl tin dilaurate, 4 parts of epoxidized soybean oil, 5 parts of stearic acid, hard charcoal
Black 7 parts, 7 parts of soft kaolin, 7 parts of aluminium hydroxide (average grain diameter is 2 μm), nano silica (average grain diameter 120nm) 4
Part, 2 parts of cerium oxide；Silicon rubber, fluorubber, fluorine silicone rubber are added in mixer, under the conditions of 75 DEG C, mixing 12min, Xiang Mi
Dimethyl silicone polymer, polyvinylidene fluoride, dibutyl tin dilaurate are added in mill, are continued to keep the temperature mixing 15min, be obtained
Major ingredient；Epoxidized soybean oil, stearic acid, white carbon black, soft kaolin, aluminium hydroxide, nano silica, cerium oxide are added to
In step (1) resulting major ingredient, under the conditions of 70 DEG C, mixing 30min；Under the conditions of 100 DEG C, mixing 15min, Bao Tong 5 times；So
After be warming up to 120 DEG C, mixing 10min, Bao Tong 3 times, then prolonged by flattener molded, obtain modified silica-gel cable sheath material.
The performance test results of the resulting cable sheath material of the present embodiment are as follows: tensile strength 28.5Mpa, extension at break
Rate is 302%, oxidation index 35, and energy long-term stable work, low-temperature impact brittle temperature reach -92 under 100 DEG C of environment
DEG C, ageing-resistant test (136 DEG C × 168h): elongation at break conservation rate is 90.2%, and tensile strength change rate is 93.2%, resistance to
Oiliness tests (20# machine oil, 100 DEG C × 80h): elongation at break conservation rate is 88.4%, and tensile strength change rate is 82.5%.
Above the embodiments of the present invention are described in detail, but the present invention is not limited to described embodiments.It is right
For those skilled in the art, in the case where not departing from the principle of the invention and spirit, these embodiments are carried out more
Kind change, modification, replacement and modification, still fall in protection scope of the present invention.
Claims (10)
1. a kind of modified silicon rubber cable sheath material, which is characterized in that be made of following raw materials according to parts by weight: silicon rubber
30~60 parts of glue, 10~25 parts of fluorubber, 5~15 parts of fluorine silicone rubber, 1~5 part of dimethyl silicone polymer, polyvinylidene fluoride 5
~15 parts, 0.1~1 part of dibutyl tin dilaurate, 1~5 part of epoxidized soybean oil, 4~10 parts of modified graphene oxide, stearic acid
2~6 parts, 3~10 parts of white carbon black, 3~8 parts of soft kaolin, 5~10 parts of aluminium hydroxide, 1~5 part of nano silica, rare earth
0.5~3 part of oxide.
2. modified silicon rubber cable sheath material according to claim 1, which is characterized in that the modified graphene oxide
To be made using following methods: graphene oxide ultrasonic disperse is obtained to point of graphene oxide in N,N-dimethylformamide
Toluene di-isocyanate(TDI) is added into the dispersion liquid of resulting graphene oxide under the protection of inert gas in dispersion liquid, -5~
5 DEG C are reacted 16~28 hours, and bis- (3- aminopropyl) polyethylene glycol are added under the protection of inert gas, continue insulation reaction 6
It~10 hours, stood, be filtered, washed, be dried to obtain modified graphene oxide.
3. modified silicon rubber cable sheath material according to claim 2, which is characterized in that the graphene oxide and institute
The weight ratio for stating toluene di-isocyanate(TDI) is 0.05~0.2:1.
4. modified silicon rubber cable sheath material according to claim 1, which is characterized in that the graphene oxide and institute
The weight ratio for stating bis- (3- aminopropyl) polyethylene glycol is 0.01~0.1:1.
5. modified silicon rubber cable sheath material according to claim 1, which is characterized in that the aluminium hydroxide is averaged
Partial size is 1~4 μm.
6. modified silicon rubber cable sheath material according to claim 1, which is characterized in that the nano silica
Average grain diameter is 100~200nm.
7. modified silicon rubber cable sheath material according to claim 1, which is characterized in that the rare earth oxide is oxygen
Change cerium.
8. modified silicon rubber cable sheath material according to claim 1, which is characterized in that by it is following according to parts by weight
Raw material be made.
9. modified silicon rubber cable sheath material according to claim 1, which is characterized in that by it is following according to parts by weight
Raw material be made.
10. a kind of preparation method of such as modified silicon rubber cable sheath material according to any one of claims 1 to 9, special
Sign is, includes the following steps:
(1) silicon rubber, fluorubber, fluorine silicone rubber are added in mixer, under the conditions of 70~90 DEG C, 5~15min of mixing, to
In mixer add dimethyl silicone polymer, polyvinylidene fluoride, dibutyl tin dilaurate, continue keep the temperature mixing 5~
15min obtains major ingredient；
(2) by epoxidized soybean oil, modified graphene oxide, stearic acid, white carbon black, soft kaolin, aluminium hydroxide, nano-silica
SiClx, rare earth oxide are added in step (1) resulting major ingredient, under the conditions of 70~90 DEG C, 10~30min of mixing；
(3) under the conditions of 100~120 DEG C, mixing 5~15min, Bao Tong 2~5 times；120~140 DEG C are then heated to, mixing 3
~10min, Bao Tong 3~8 times, then prolonged by flattener molded, obtain modified silica-gel cable sheath material.
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| CN114921008A (en) * | 2022-07-09 | 2022-08-19 | 山东奥格新材料创新中心有限公司 | Production method of reinforced carboxylic acrylonitrile butadiene latex |
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