CN110358307A - A kind of preparation method of heat resist modification silicone rubber for cable sheath material - Google Patents
A kind of preparation method of heat resist modification silicone rubber for cable sheath material Download PDFInfo
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- CN110358307A CN110358307A CN201910679661.4A CN201910679661A CN110358307A CN 110358307 A CN110358307 A CN 110358307A CN 201910679661 A CN201910679661 A CN 201910679661A CN 110358307 A CN110358307 A CN 110358307A
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- inorganic filler
- silicone rubber
- quantum dot
- cable sheath
- sheath material
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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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
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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
- C08L2201/08—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
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
Abstract
The invention discloses a kind of preparation methods of heat resist modification silicone rubber for cable sheath material.The present invention is modified to carbon quantum dot by silane coupling agent, modified carbon quantum dot is recycled to be modified silicon rubber, active carbon-carbon double bond is introduced on the surface of inorganic filler, then it is emulsified using modified inorganic filler and epoxy resin, so that inorganic filler after epoxy resin coating modification, achieve the purpose that epoxy-silane coupling agent grafting and coating inorganic filler, it is good with modified silicon rubber compatibility in mixing process, it is easy to spread out in modified silicon rubber, gives full play to the functions such as its reinforcement, fire-retardant, anti-old and stabilization；Up to 18MPa or more, elongation at break can be used for a long time the tensile strength of modified silicon rubber cable sheath material prepared by the present invention up to 480% or more under -50~180 DEG C of high/low temperature.
Description
Technical field
The present invention relates to polymer-function material technical field, in particular to a kind of heat resist modification silicone rubber for cable sheath
The preparation method of material.
Background technique
Cable cover(ing) is the pith for protecting cables from external world, generallys use polymer-function material and is made.
Cable cover(ing) allow for protecting cable internal and external conductor and insulating layer from environment, weather, acid, hydrolysis influence,
Currently, the material of main part of cable sheath material is mainly by haloflex, chlorosulfonated polyethylene, polyurethane, polyethylene, various days
Right or rubber of synthesis etc..The main chain of methyl vinyl silicone rubber is made of Si-O key, it has excellent heat resistance, extensively
Applied to high temperature place.With the development of science and technology, the performances such as the heat resistance of silicon rubber and anti-flammability are proposed higher
It is required that.
In the actual production process, silicone rubber for cable sheath material can cooperate high amount of inorganic filler (such as inorganic reinforcer, nothing
Machine fire retardant etc.) it uses, thus change curability, physical mechanical property and the hot property etc. of sizing material, for example, passing through three oxidations
Two iron inhibit the oxidation cross-linked of silicon rubber side chain, to improve the thermal stability of silicon rubber, such as pass through addition calcium carbonate, swollen
Moisten the fillers such as soil, kaolinite to improve the physical mechanical property of silicon rubber.But inorganic filler is added in silicon rubber base-material,
Binding force between the two is weak, causes boundary defect instead, and the performance of cable sheath material is caused to decline.
Summary of the invention
The purpose of the present invention is intended to provide a kind of preparation method of heat resist modification silicone rubber for cable sheath material, to solve
Above-mentioned technical problem.
To achieve the goals above, the technical solution of the present invention is as follows:
A kind of preparation method of heat resist modification silicone rubber for cable sheath material, includes the following steps:
(1) it disperses carbon quantum dot in the first organic solvent, obtains carbon quantum dot dispersion liquid, by carbon quantum dot dispersion liquid
After being warming up to 60~80 DEG C, it is added the first silane coupling agent, insulated and stirred reacts 60~150min, washed, filtering, dry
To modified carbon quantum dot；
(2) methyl vinyl silicone rubber being heated to 120~150 DEG C, modified carbon quantum dot is added, constant temperature stirs 1~3h,
Obtain modified silicon rubber；
(3) following raw materials according to parts by weight: 100 parts of modified silicon rubber, composite modified inorganic filler 10~35 are weighed
Part, 1~3 part of antioxidant, 2~6 parts of vulcanizing agent, 1~5 part of vulcanization accelerator, 1~4 part of softening agent, by modified silicon rubber, again
Close modified inorganic filler, antioxidant, vulcanizing agent, vulcanization accelerator, softening agent are put into high speed mixer, be stirred 5~
It after 30min, is sent into double roller open mill, 120~160 DEG C of temperature of control is kneaded, and twin-screw extrusion is then fed into
In machine, 120~160 DEG C of temperature control, extruding pelletization to obtain the final product.
Preferably, in the step (1), first organic solvent is selected from dehydrated alcohol, anhydrous propanone, benzene, toluene, two
One of toluene, hexamethylene are a variety of.
Preferably, in the step (1), first silane coupling agent is selected from vinyltriethoxysilane, γ-methyl
One of acryloyloxypropyltrimethoxysilane, methyl dimethoxysilane, polyethylene glycol trimethoxy silicon propyl ether
Or it is a variety of.
Preferably, in the step (1), the quality of first silane coupling agent is the 5 of the quality of the carbon quantum dot
~15%.
Preferably, in the step (2), the quality of the modified carbon quantum dot is the matter of the methyl vinyl silicone rubber
The 5~15% of amount.
Preferably, in the step (3), the composite modified inorganic filler is to be made using following methods:
It disperses inorganic filler in the second organic solvent, is configured to suspension, suspension is warming up to 60~80 DEG C, is added
Enter the second silane coupling agent, at 60~80 DEG C stir 1~4h, be added epoxy resin, continue at 60~80 DEG C stirring 1~
3h is filtered, washed, is dried to obtain composite modified inorganic filler, and the inorganic filler is selected from silica, white carbon black, carbonic acid
One of calcium, magnesium hydroxide, bentonite, kaolin are a variety of.
It is further preferred that second silane coupling agent is selected from vinyltriethoxysilane, γ-methacryloxypropyl
One of base propyl trimethoxy silicane, methyl dimethoxysilane, polyethylene glycol trimethoxy silicon propyl ether are a variety of.
It is further preferred that second silane coupling agent and the mass ratio of the inorganic filler are 0.05~0.2: 1.
It is further preferred that the epoxy resin and the mass ratio of the inorganic filler are 0.05~0.2: 1.
It is further preferred that second organic solvent is selected from dehydrated alcohol, anhydrous propanone, benzene,toluene,xylene, ring
One of hexane is a variety of.
Compared with prior art, the beneficial effects of the present invention are:
The present invention is modified to carbon quantum dot by silane coupling agent, and modified carbon quantum dot is recycled to change silicon rubber
Property, active carbon-carbon double bond is introduced on the surface of inorganic filler, is then emulsified using modified inorganic filler and epoxy resin, is made
Inorganic filler after epoxy resin coating modification, achieve the purpose that epoxy-silane coupling agent grafting and coating inorganic filler,
It is good with modified silicon rubber compatibility in mixing process, it is easy to spread out in modified silicon rubber, give full play to its reinforcement, resistance
The functions such as combustion, anti-old and stabilization；The tensile strength of modified silicon rubber cable sheath material prepared by the present invention is up to 18MPa
More than, elongation at break can be used for a long time up to 480% or more under -50~180 DEG C of high/low temperature.
Detailed description of the invention
Fig. 1 is the preparation technology flow chart of heat resist modification silicone rubber for cable sheath material provided by the invention.
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing.It should be noted that for
The explanation of these embodiments is used to help understand the present invention, but and does not constitute a limitation of the invention.In addition, disclosed below
The each embodiment of the present invention involved in technical characteristic can be combined with each other as long as they do not conflict with each other.
Referring to Fig. 1, a kind of preparation method of heat resist modification silicone rubber for cable sheath material provided by the invention, including such as
Lower step:
(1) it disperses carbon quantum dot in the first organic solvent, obtains carbon quantum dot dispersion liquid, by carbon quantum dot dispersion liquid
After being warming up to 60~80 DEG C, it is added the first silane coupling agent, insulated and stirred reacts 60~150min, washed, filtering, dry
To modified carbon quantum dot；
(2) methyl vinyl silicone rubber being heated to 120~150 DEG C, modified carbon quantum dot is added, constant temperature stirs 1~3h,
Obtain modified silicon rubber；
(3) following raw materials according to parts by weight: 100 parts of modified silicon rubber, composite modified inorganic filler 10~35 are weighed
Part, 1~3 part of antioxidant, 2~6 parts of vulcanizing agent, 1~5 part of vulcanization accelerator, 1~4 part of softening agent, by modified silicon rubber, again
Close modified inorganic filler, antioxidant, vulcanizing agent, vulcanization accelerator, softening agent are put into high speed mixer, be stirred 5~
It after 30min, is sent into double roller open mill, 120~160 DEG C of temperature of control is kneaded, and twin-screw extrusion is then fed into
In machine, 120~160 DEG C of temperature control, extruding pelletization to obtain the final product.
In the present embodiment, in the step (1), first organic solvent be selected from dehydrated alcohol, anhydrous propanone,
One of benzene,toluene,xylene, hexamethylene are a variety of.
In the present embodiment, in the step (1), first organic solvent and the mass ratio of the carbon quantum dot are
1~5: 1.
In the present embodiment, in the step (1), first silane coupling agent is selected from vinyl triethoxyl silicon
Alkane, γ-methacryloxypropyl trimethoxy silane, methyl dimethoxysilane, polyethylene glycol trimethoxy silicon propyl
One of ether is a variety of.
Further, first silane coupling agent is γ-methacryloxypropyl trimethoxy silane.
In the present embodiment, in the step (1), the quality of first silane coupling agent is the carbon quantum dot
The 5~15% of quality.
In the present embodiment, in the step (2), the quality of the modified carbon quantum dot is the methyl ethylene silicon
The 5~15% of the quality of rubber.
In the present embodiment, in the step (3), the composite modified inorganic filler is to be made using following methods:
It disperses inorganic filler in the second organic solvent, is configured to suspension, suspension is warming up to 60~80 DEG C, is added
Enter the second silane coupling agent, at 60~80 DEG C stir 1~4h, be added epoxy resin, continue at 60~80 DEG C stirring 1~
3h is filtered, washed, is dried to obtain composite modified inorganic filler, and the inorganic filler is selected from silica, white carbon black, carbonic acid
One of calcium, magnesium hydroxide, bentonite, kaolin are a variety of.
Further, second silane coupling agent is selected from vinyltriethoxysilane, γ-methacryloxy third
One of base trimethoxy silane, methyl dimethoxysilane, polyethylene glycol trimethoxy silicon propyl ether are a variety of.
Further, second silane coupling agent is γ-methacryloxypropyl trimethoxy silane.
Further, second silane coupling agent and the mass ratio of the inorganic filler are 0.05~0.2: 1.
Further, the epoxy resin and the mass ratio of the inorganic filler are 0.05~0.2: 1.
Further, the inorganic filler by mass ratio be 1~6: 2~5: 3~6 silica, tourmaline anion,
Composition.
Further, the average grain diameter of the inorganic filler is 20~100nm.
Further, second organic solvent and the weight ratio of the inorganic filler are 1~5: 1.
Further, second organic solvent is selected from dehydrated alcohol, anhydrous propanone, benzene,toluene,xylene, hexamethylene
One of or it is a variety of.
In the present embodiment, in the step (3), the antioxidant is antioxidant 1010.
In the present embodiment, in the step (3), the softening agent is in polyethylene wax, paraffin, chlorinated paraffin
It is one or more.
Further, the softening agent is polyethylene wax
In the present embodiment, in the step (3), the vulcanizing agent is cumyl peroxide.
In the present embodiment, in the step (3), the vulcanization accelerator is Triallyl isocyanurate.
Specific embodiments of the present invention are described further below.
Composite modified inorganic filler in following embodiment is all made of following methods and is made:
Weigh the raw material according to following portions by weight meter: 20 parts of silica, 45 parts of calcium carbonate, 30 parts of magnesium hydroxide, nothing
200 parts of water-ethanol, 9.5 parts of γ-methacryloxypropyl trimethoxy silane, 9.5 parts of epoxy resin；By white carbon black, carbon
Sour calcium, magnesium hydroxide are scattered in dehydrated alcohol by ultrasonic wave, are configured to suspension, and suspension is warming up to 75 DEG C, is added
γ-methacryloxypropyl trimethoxy silane stirs 3h at 75 DEG C, and epoxy resin is being added, is continuing at 75 DEG C
2h is stirred, is filtered, washed, is dried to obtain composite modified inorganic filler；The average grain diameter of silica is 20~100nm；Carbon
The average grain diameter of sour calcium is 20~100nm；The average grain diameter of magnesium hydroxide is 20~100nm.
Embodiment 1
A kind of preparation method of heat resist modification silicone rubber for cable sheath material provided in this embodiment, including walk as follows
It is rapid:
(1) it disperses carbon quantum dot in dehydrated alcohol, obtains carbon quantum dot dispersion liquid, carbon quantum dot dispersion liquid is heated up
To after 70 DEG C, γ-methacryloxypropyl trimethoxy silane is added, insulated and stirred reacts 120min, washed, mistake
It filters, be dried to obtain modified carbon quantum dot, wherein carbon quantum dot, dehydrated alcohol, γ-methacryloxypropyl trimethoxy
The mass ratio of silane is 1: 2: 0.1；
(2) methyl vinyl silicone rubber is heated to 130 DEG C, modified carbon quantum dot is added, constant temperature stirs 2h, is modified
Silicon rubber, wherein the quality of modified carbon quantum dot is the 12% of the quality of methyl vinyl silicone rubber；
(3) weigh following raw materials according to parts by weight: 100 parts of modified silicon rubber, 27.2 parts of composite modified inorganic filler,
2.4 parts of antioxidant 1010,4.3 parts of cumyl peroxide, 3.1 parts of Triallyl isocyanurate, 3.4 parts of polyethylene wax,
By modified silicon rubber, composite modified inorganic filler, antioxidant 1010, cumyl peroxide, Triallyl isocyanurate,
Polyethylene wax is put into high speed mixer, after mixing 10min with the revolving speed high-speed stirred of 800r/min, is sent into the open modeling of double roller
In mill, 150 DEG C of temperature of control is kneaded, and is then fed into double screw extruder, 150 DEG C of temperature control, extruding pelletization to obtain the final product.
After tested, the performance test results of the present embodiment products obtained therefrom are as follows: tensile strength 18.1MPa, extension at break
Rate is 487%, and can be used for a long time under -50~180 DEG C of high/low temperature.
Embodiment 2
A kind of preparation method of heat resist modification silicone rubber for cable sheath material provided in this embodiment, including walk as follows
It is rapid:
(1) it disperses carbon quantum dot in dehydrated alcohol, obtains carbon quantum dot dispersion liquid, carbon quantum dot dispersion liquid is heated up
To after 70 DEG C, γ-methacryloxypropyl trimethoxy silane is added, insulated and stirred reacts 120min, washed, mistake
It filters, be dried to obtain modified carbon quantum dot, wherein carbon quantum dot, dehydrated alcohol, γ-methacryloxypropyl trimethoxy
The mass ratio of silane is 1: 2: 0.08；
(2) methyl vinyl silicone rubber is heated to 130 DEG C, modified carbon quantum dot is added, constant temperature stirs 2h, is modified
Silicon rubber, wherein the quality of modified carbon quantum dot is the 10% of the quality of methyl vinyl silicone rubber；
(3) weigh following raw materials according to parts by weight: 100 parts of modified silicon rubber, 27.2 parts of composite modified inorganic filler,
2.4 parts of antioxidant 1010,4.3 parts of cumyl peroxide, 3.1 parts of Triallyl isocyanurate, 3.4 parts of polyethylene wax,
By modified silicon rubber, composite modified inorganic filler, antioxidant 1010, cumyl peroxide, Triallyl isocyanurate,
Polyethylene wax is put into high speed mixer, after mixing 10min with the revolving speed high-speed stirred of 800r/min, is sent into the open modeling of double roller
In mill, 150 DEG C of temperature of control is kneaded, and is then fed into double screw extruder, 150 DEG C of temperature control, extruding pelletization to obtain the final product.
Embodiment 3
A kind of preparation method of heat resist modification silicone rubber for cable sheath material provided in this embodiment, including walk as follows
It is rapid:
(1) it disperses carbon quantum dot in dehydrated alcohol, obtains carbon quantum dot dispersion liquid, carbon quantum dot dispersion liquid is heated up
To after 70 DEG C, γ-methacryloxypropyl trimethoxy silane is added, insulated and stirred reacts 120min, washed, mistake
It filters, be dried to obtain modified carbon quantum dot, wherein carbon quantum dot, dehydrated alcohol, γ-methacryloxypropyl trimethoxy
The mass ratio of silane is 1: 2: 0.05；
(2) methyl vinyl silicone rubber is heated to 130 DEG C, modified carbon quantum dot is added, constant temperature stirs 2h, is modified
Silicon rubber, wherein the quality of modified carbon quantum dot is the 15% of the quality of methyl vinyl silicone rubber；
(3) weigh following raw materials according to parts by weight: 100 parts of modified silicon rubber, 27.2 parts of composite modified inorganic filler,
2.4 parts of antioxidant 1010,4.3 parts of cumyl peroxide, 3.1 parts of Triallyl isocyanurate, 3.4 parts of polyethylene wax,
By modified silicon rubber, composite modified inorganic filler, antioxidant 1010, cumyl peroxide, Triallyl isocyanurate,
Polyethylene wax is put into high speed mixer, after mixing 10min with the revolving speed high-speed stirred of 800r/min, is sent into the open modeling of double roller
In mill, 150 DEG C of temperature of control is kneaded, and is then fed into double screw extruder, 150 DEG C of temperature control, extruding pelletization to obtain the final product.
Embodiment 4
A kind of preparation method of heat resist modification silicone rubber for cable sheath material provided in this embodiment, including walk as follows
It is rapid:
(1) it disperses carbon quantum dot in dehydrated alcohol, obtains carbon quantum dot dispersion liquid, carbon quantum dot dispersion liquid is heated up
To after 80 DEG C, γ-methacryloxypropyl trimethoxy silane is added, insulated and stirred reacts 150min, washed, mistake
It filters, be dried to obtain modified carbon quantum dot, wherein carbon quantum dot, dehydrated alcohol, γ-methacryloxypropyl trimethoxy
The mass ratio of silane is 1: 2: 0.15；
(2) methyl vinyl silicone rubber is heated to 130 DEG C, modified carbon quantum dot is added, constant temperature stirs 1h, is modified
Silicon rubber, wherein the quality of modified carbon quantum dot is the 5% of the quality of methyl vinyl silicone rubber；
(3) weigh following raw materials according to parts by weight: 100 parts of modified silicon rubber, 27.2 parts of composite modified inorganic filler,
2.4 parts of antioxidant 1010,4.3 parts of cumyl peroxide, 3.1 parts of Triallyl isocyanurate, 3.4 parts of polyethylene wax,
By modified silicon rubber, composite modified inorganic filler, antioxidant 1010, cumyl peroxide, Triallyl isocyanurate,
Polyethylene wax is put into high speed mixer, after mixing 10min with the revolving speed high-speed stirred of 800r/min, is sent into the open modeling of double roller
In mill, 150 DEG C of temperature of control is kneaded, and is then fed into double screw extruder, 150 DEG C of temperature control, extruding pelletization to obtain the final product.
Embodiment 5
Modified silicon rubber is made according to (1) the step of embodiment 1 and step (2), then weigh it is following in parts by weight
The raw material of meter: 100 parts of modified silicon rubber, 26.3 parts of composite modified inorganic filler, 2.6 parts of antioxidant 1010, peroxidating two are different
4 parts of propyl benzene, 2.9 parts of Triallyl isocyanurate, 3.1 parts of polyethylene wax, by modified silicon rubber, composite modified inorganic filler,
Antioxidant 1010, cumyl peroxide, Triallyl isocyanurate, polyethylene wax are put into high speed mixer, with
After the revolving speed high-speed stirred mixing 15min of 800r/min, it is sent into double roller open mill, 140 DEG C of temperature of control is mixed
Refining, is then fed into double screw extruder, 140 DEG C of temperature control, extruding pelletization to obtain the final product.
Embodiment 6
Modified silicon rubber is made according to (1) the step of embodiment 1 and step (2), then weigh it is following in parts by weight
The raw material of meter: 100 parts of modified silicon rubber, 25.8 parts of composite modified inorganic filler, 2.8 parts of antioxidant 1010, peroxidating two are different
3.8 parts of propyl benzene, 2.9 parts of Triallyl isocyanurate, 3.5 parts of polyethylene wax by modified silicon rubber, composite modified inorganic are filled out
Material, antioxidant 1010, cumyl peroxide, Triallyl isocyanurate, polyethylene wax are put into high speed mixer, with
After the revolving speed high-speed stirred mixing 10min of 800r/min, it is sent into double roller open mill, 150 DEG C of temperature of control is mixed
Refining, is then fed into double screw extruder, 150 DEG C of temperature control, extruding pelletization to obtain the final product.
Embodiment 7
Modified silicon rubber cable sheath material, the present embodiment and implementation are made using preparation method similar to Example 1
The difference of example 1 is only that: the dosage of composite modified inorganic filler used by the present embodiment step (3) is 10 parts.
Embodiment 8
Modified silicon rubber cable sheath material, the present embodiment and implementation are made using preparation method similar to Example 1
The difference of example 1 is only that: the dosage of composite modified inorganic filler used by the present embodiment step (3) is 20 parts.
Embodiment 9
Modified silicon rubber cable sheath material, the present embodiment and implementation are made using preparation method similar to Example 1
The difference of example 1 is only that: the dosage of composite modified inorganic filler used by the present embodiment step (3) is 25 parts.
Embodiment 10
Modified silicon rubber cable sheath material, the present embodiment and implementation are made using preparation method similar to Example 1
The difference of example 1 is only that: the dosage of composite modified inorganic filler used by the present embodiment step (3) is 30 parts.
Embodiment 11
Modified silicon rubber cable sheath material, the present embodiment and implementation are made using preparation method similar to Example 1
The difference of example 1 is only that: the dosage of composite modified inorganic filler used by the present embodiment step (3) is 35 parts.
Comparative example 1
Weigh following raw materials according to parts by weight: 100 parts of methyl vinyl silicone rubber, composite modified inorganic filler 27.2
Part, 2.4 parts of antioxidant 1010,4.3 parts of cumyl peroxide, 3.1 parts of Triallyl isocyanurate, polyethylene wax 3.4
Part, methyl vinyl silicone rubber, composite modified inorganic filler, antioxidant 1010, cumyl peroxide, triallyl is different
Cyanurate, polyethylene wax are put into high speed mixer, after mixing 10min with the revolving speed high-speed stirred of 800r/min, are sent into double
In roller open mill, 150 DEG C of temperature of control is kneaded, and is then fed into double screw extruder, 150 DEG C of temperature control, is squeezed out
It is granulated to obtain the final product.
Comparative example 2
(1) it disperses carbon quantum dot in dehydrated alcohol, obtains carbon quantum dot dispersion liquid, carbon quantum dot dispersion liquid is heated up
To after 70 DEG C, γ-methacryloxypropyl trimethoxy silane is added, insulated and stirred reacts 120min, washed, mistake
It filters, be dried to obtain modified carbon quantum dot, wherein carbon quantum dot, dehydrated alcohol, γ-methacryloxypropyl trimethoxy
The mass ratio of silane is 1: 2: 0.1；
(2) methyl vinyl silicone rubber is heated to 130 DEG C, modified carbon quantum dot is added, constant temperature stirs 2h, is modified
Silicon rubber, wherein the quality of modified carbon quantum dot is the 12% of the quality of methyl vinyl silicone rubber；
(3) following raw materials according to parts by weight: 100 parts of modified silicon rubber, 6 parts of silica, calcium carbonate 13.5 are weighed
Part, 9 parts of magnesium hydroxide, 5 parts of epoxy resin, 2.4 parts of antioxidant 1010,4.3 parts of cumyl peroxide, triallyl are different
3.1 parts of cyanurate, 3.4 parts of polyethylene wax by modified silicon rubber, silica, calcium carbonate, magnesium hydroxide, epoxy resin, resist
Oxidant 1010, cumyl peroxide, Triallyl isocyanurate, polyethylene wax are put into high speed mixer, with 800r/
After the revolving speed high-speed stirred mixing 10min of min, it is sent into double roller open mill, 150 DEG C of temperature of control is kneaded, so
It is sent into double screw extruder afterwards, 150 DEG C of temperature control, extruding pelletization to obtain the final product.
Performance test:
Beneficial effect in order to further illustrate the present invention is strong to the stretching of above-described embodiment and comparative example resulting product
Degree, tension failure rate are tested, and test result is as shown in table following table:
In conjunction with attached drawing, the embodiments of the present invention are described in detail above, but the present invention is not limited to described implementations
Mode.For a person skilled in the art, in the case where not departing from the principle of the invention and spirit, to these embodiments
A variety of change, modification, replacement and modification are carried out, are still fallen in protection scope of the present invention.
Claims (10)
1. a kind of preparation method of heat resist modification silicone rubber for cable sheath material, which comprises the steps of:
(1) it disperses carbon quantum dot in the first organic solvent, obtains carbon quantum dot dispersion liquid, carbon quantum dot dispersion liquid is heated up
To after 60~80 DEG C, it is added the first silane coupling agent, insulated and stirred reacts 60~150min, washed, filter, be dried to obtain and change
Property carbon quantum dot；
(2) methyl vinyl silicone rubber is heated to 120~150 DEG C, modified carbon quantum dot is added, constant temperature stirs 1~3h, obtains
Modified silicon rubber；
(3) weigh following raw materials according to parts by weight: 100 parts of modified silicon rubber, resists 10~35 parts of composite modified inorganic filler
1~3 part of oxidant, 2~6 parts of vulcanizing agent, 1~5 part of vulcanization accelerator, 1~4 part of softening agent, by modified silicon rubber, composite modified
Inorganic filler, antioxidant, vulcanizing agent, vulcanization accelerator, softening agent are put into high speed mixer, are stirred 5~30min
Afterwards, it is sent into double roller open mill, 120~160 DEG C of temperature of control is kneaded, it is then fed into double screw extruder,
120~160 DEG C of temperature control, extruding pelletization to obtain the final product.
2. the preparation method of heat resist modification silicone rubber for cable sheath material according to claim 1, which is characterized in that institute
It states the first organic solvent and is selected from one of dehydrated alcohol, anhydrous propanone, benzene,toluene,xylene, thiacyclohexane or a variety of.
3. the preparation method of heat resist modification silicone rubber for cable sheath material according to claim 1, which is characterized in that institute
It states in step (1), first silane coupling agent is selected from vinyltriethoxysilane, γ-methacryloxypropyl three
One of methoxy silane, methyl dimethoxysilane, polyethylene glycol trimethoxy silicon propyl ether are a variety of.
4. the preparation method of heat resist modification silicone rubber for cable sheath material according to claim 1, which is characterized in that institute
It states in step (1), the quality of first silane coupling agent is the 5~15% of the quality of the carbon quantum dot.
5. the preparation method of heat resist modification silicone rubber for cable sheath material according to claim 1, which is characterized in that institute
It states in step (2), the quality of the modified carbon quantum dot is the 5~15% of the quality of the methyl vinyl silicone rubber.
6. the preparation method of heat resist modification silicone rubber for cable sheath material according to claim 1, which is characterized in that institute
It states in step (3), the composite modified inorganic filler is to be made using following methods:
It disperses inorganic filler in the second organic solvent, is configured to suspension, suspension is warming up to 60~80 DEG C, be added the
Disilane coupling agent stirs 1~4h at 60~80 DEG C, and epoxy resin is being added, and continues to stir 1~3h at 60~80 DEG C,
Be filtered, washed, be dried to obtain composite modified inorganic filler, the inorganic filler be selected from silica, white carbon black, calcium carbonate,
One of magnesium hydroxide, bentonite, kaolin are a variety of.
7. the preparation method of heat resist modification silicone rubber for cable sheath material according to claim 6, which is characterized in that institute
It states the second silane coupling agent and is selected from vinyltriethoxysilane, γ-methacryloxypropyl trimethoxy silane, methyl
One of dimethoxysilane, polyethylene glycol trimethoxy silicon propyl ether are a variety of.
8. the preparation method of heat resist modification silicone rubber for cable sheath material according to claim 6, which is characterized in that institute
The mass ratio for stating the second silane coupling agent and the inorganic filler is 0.05~0.2: 1.
9. the preparation method of heat resist modification silicone rubber for cable sheath material according to claim 6, which is characterized in that institute
The mass ratio for stating epoxy resin and the inorganic filler is 0.05~0.2: 1.
10. the preparation method of heat resist modification silicone rubber for cable sheath material according to claim 6, which is characterized in that
Second organic solvent is selected from one of dehydrated alcohol, anhydrous propanone, benzene,toluene,xylene, hexamethylene or a variety of.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116622326A (en) * | 2023-06-29 | 2023-08-22 | 东莞市艺辉胶粘剂有限公司 | Modified polyurethane adhesive and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116622326A (en) * | 2023-06-29 | 2023-08-22 | 东莞市艺辉胶粘剂有限公司 | Modified polyurethane adhesive and preparation method thereof |
| CN116622326B (en) * | 2023-06-29 | 2023-11-14 | 东莞市艺辉胶粘剂有限公司 | Modified polyurethane adhesive and preparation method thereof |
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