CN110256766A - A kind of preparation method of insulating heat-conductive cable cover(ing) - Google Patents
A kind of preparation method of insulating heat-conductive cable cover(ing) Download PDFInfo
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
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- 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
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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Abstract
The invention belongs to cable machinery technical fields, and in particular to a kind of preparation method of insulating heat-conductive cable cover(ing), including following preparation step: (1) prepare base-material；(2) compounded mix is prepared；(3) modified quicklime is prepared；(4) modified carbon nano-tube is prepared；(5) base-material, modified quicklime, modified carbon nano-tube, compounded mix, dehydrated alcohol and silane coupling agent are taken according to mass ratio 80:6:1:1:300:0.01, compounded mix is dispersed in dehydrated alcohol, modified compounded mix is obtained with silane coupling agent graft modification, modified compounded mix, modified quicklime, modified carbon nano-tube and base-material are uniformly mixed and are placed in 60 DEG C of thermostat water baths until alcohol solvent evaporating completely, obtained mixture is sent into double screw extruder and is kneaded, granulation obtains insulating heat-conductive cable cover(ing).The cable cover(ing) prepared by means of the present invention has stronger mechanical property, the cable under a variety of environment is suitble to use while improving resistivity and thermal conductivity.
Description
Technical field
The invention belongs to cable machinery technical fields, and in particular to a kind of preparation method of insulating heat-conductive cable cover(ing).
Background technique
Cable is usually the cable of similar rope as several or made of several groups of wire strandings, between every group of conducting wire mutually absolutely
Edge, and be often twisted into around a center, the coat layer of power cable is wrapped in wire external layer, plays the role of protection to conducting wire, this
Construction is so that cable has interior energization, the feature of external insulation.Difference can be divided into power transmission cable, control to cable depending on the application
Cable, computer cable, signal cable, cable for ship, mine cable and shielded cable etc. are often located due to widely used
In pullling the adverse circumstances such as abrasion, exposure in sunshine, raindrop erosion, this just proposes high requirement to cable cover(ing), general electricity
Cable sheath needs to have higher insulation heat-conducting property and stronger physical property.
Improving the most common method of cable cover(ing) polymer bond property at present is the addition metallic, carbon system into polymer
Particle or inorganic conductive particle etc..Metallic and carbon system particle thermal coefficient with higher, are added to cable cover(ing) on a small quantity
Its thermal conductivity can be significantly improved in matrix, but can make the decreasing insulating of cable cover(ing) matrix.Such as notification number is
A kind of flame-proof control cable disclosed in the Chinese invention patent of CN206558256U, cable cover(ing) include interior net cover, outer net cover, lead
Thermometal covers and extrudes layer, and heat-conducting metal sheath is located at the periphery of outer net cover, and heat-conducting metal sheath includes multiple along core length
The hemizonid of direction spacing arrangement, the cable improve heating conduction by adding protective metal shell, but its insulation performance can be by
To influence；If adding heat conductive insulating particle such as boron nitride, silica, silicon carbide, aluminium oxide etc. into cable cover(ing) polymer, both
The thermal conductivity of organic silicon rubber can be improved, while insulation performance will not be significantly affected again, but such particle generally requires
30%-150% is added, a high proportion of additive amount can damage the mechanical property of cable cover(ing), reduce the service life of cable.For example,
The heat-resisting thermally conductive PE cable material of one kind disclosed in the Chinese invention patent application of Publication No. CN106832507A, pass through to
Filler added with silicon nitride, gas-phase silica what modified carbon nano-tube composition in the base-material of polyethylene and silicon rubber composition mentions
The thermal conductivity of cable material is risen, the additive amount of filler has reached the 59%-107% of base-material, causes its mechanical property impaired serious；Again
Such as the corrosion-resistant thermally conductive cable material of one kind disclosed in the Chinese invention patent application of Publication No. CN106084496A, by adding
Add modified carbon nano-tube, modified aluminium nitride and organic montmorillonite to promote the thermal conductivity of cable material, equally because of filer content
It is excessively high and lead to cable mechanical properties decrease.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of preparation sides of insulating heat-conductive cable cover(ing)
Method, the cable cover(ing) prepared have stronger mechanical property while improving resistivity and thermal conductivity.
To achieve the above object, the present invention adopts the following technical scheme:
The present invention provides a kind of preparation methods of insulating heat-conductive cable cover(ing), including following preparation step:
(1) prepare base-material: base-material is made of polypropylene, vinyl silicone oil, containing hydrogen silicone oil, platinum catalyst and alkynyl cyclohexanol, first
20-30min is mixed in containing hydrogen silicone oil, platinum catalyst and alkynyl cyclohexanol, each ingredient is uniformly mixed, ethylene is then added
10-15min is mixed in base silicone oil and polypropylene, and vacuum defoamation 15min obtains base-material；
(2) it prepares compounded mix: taking 2 parts of redox graphene ultrasonic disperse in 100 parts of ethyl alcohol by weight, be added
5 parts of zinc nitrate hexahydrates and 2 parts of hexas, ultrasonic disperse 25min are evenly mixed in it in graphene dispersing solution；
Dispersion liquid is placed in reaction kettle, 100 DEG C of hydro-thermal reaction 4h, is used dehydrated alcohol centrifuge washing 3 times after being cooled to room temperature, after dry
12h is placed in 150 DEG C of baking ovens, makes zinc hydroxide is heated to be decomposed into zinc oxide and H2O obtains going back for area load zinc oxide
Former graphene oxide compounded mix；
(3) it prepares modified quicklime: fatty alcohol and ethyl alcohol is mixed evenly, quick lime is then added and water is mixed,
Drying and crushing after centrifugal dehydration is added casein and is uniformly mixed, and regulation system pH value to 7.5-8.5 continues to stir, and amber is added
Acid anhydrides, regulation system pH value to 8.2-9, spray drying obtain modified quicklime；
(4) it prepares modified carbon nano-tube: taking functionalized multi-wall carbonnanotubes, vinyltriethoxysilane and toluene is added, surpass
Sound is uniformly dispersed, and is warming up to 110 DEG C, and insulated and stirred 4-6h is washed after filtering with dehydrated alcohol, is warming up to 60-70 DEG C, vacuum is dry
It is dry to obtain modified carbon nano-tube；
(5) base-material of step (1) preparation, the modified raw stone of step (3) preparation are taken according to mass ratio 80:6:1:1:300:0.01
Compounded mix, dehydrated alcohol and silane coupling agent prepared by ash, the modified carbon nano-tube of step (4) preparation, step (2), will answer
It closes filler to be dispersed in dehydrated alcohol, obtains modified compounded mix with silane coupling agent graft modification, by modified compounded mix, change
Property quick lime, modified carbon nano-tube and base-material be uniformly mixed and be placed in 60 DEG C of thermostat water baths until alcohol solvent steams completely
Obtained mixture is sent into double screw extruder and is kneaded by hair, and granulation obtains insulating heat-conductive cable cover(ing).
Preferably, the matter of step (1) polypropylene, vinyl silicone oil, containing hydrogen silicone oil, platinum catalyst and alkynyl cyclohexanol
Amount is than being 100-200:80-100:6-8:0.3-0.5:0.03-0.05.
Preferably, the mass ratio of step (1) vinyl silicone oil, containing hydrogen silicone oil, platinum catalyst and alkynyl cyclohexanol is
150:90:7:0.4:0.04。
Preferably, redox graphene described in step (2) be graphene oxide is first prepared using Hummers method, then
It restores to obtain by hydrazine hydrate, ammonium hydroxide.
Preferably, step (2) the compounded mix partial size is 400-500 mesh.
Preferably, the mass ratio of step (3) fatty alcohol, ethyl alcohol, quick lime, water, casein and succinic anhydride is 2-
5:6-10:30-50:150-250:6-10:1-3。
Preferably, the mass ratio of step (3) fatty alcohol, ethyl alcohol, quick lime, water, casein and succinic anhydride is 3:
8:40:200:8:2。
Preferably, step (4) functionalized multi-wall carbonnanotubes, vinyltriethoxysilane and toluene by weight are than 3:
8:5.
Preferably, the processing temperature of each section of the double screw extruder of step (5) are as follows: 135-145 DEG C of first segment, second segment
150-155 DEG C, 160-165 DEG C of third section, the 4th section 165-175 DEG C, the 5th section 195-205 DEG C, die head temperature 185-190
℃。
Preferably, the processing temperature of each section of the double screw extruder of step (5) are as follows: 140 DEG C of first segment, second segment 150
DEG C, 160 DEG C of third section, the 4th section 165 DEG C, the 5th section 200 DEG C, die head temperature is 188 DEG C.
The invention has the following beneficial effects:
(1) since cable cover(ing) base-material is saturation system, the electronics of no free movement, molecular motion is difficult, and heat transfer is by brilliant
Lattice vibration, phonon is the Main Load person of thermal energy in heat transfer process.The preparation side of insulating heat-conductive cable cover(ing) of the invention
The redox graphene compounded mix of area load zinc oxide is added in method, so that contact with each other between base-material particle, part
Thermally conductive chain and thermal conductive network are formed in base-material, and heat is transmitted by phonon along the smallest direction of thermal resistance and path at this time, thermally conductive
Particle constitutes main heat transfer net；The quality of compounded mix and base-material of the invention is only than avoiding filler mistake for 1:80
Reunion more and that part occurs in base-material makes the path of phonon transmission be obstructed the case where receiving limitation so as to cause heat transfer hair
It is raw, greatly improve the heat-conductive characteristic of cable cover(ing).
(2) reduction-oxidation of area load zinc oxide is added in the preparation method of insulating heat-conductive cable cover(ing) of the invention
Graphene compounded mix, due to the presence of insulating particle zinc oxide, it is suppressed that the transmission of electronics, so that the volume resistivity of base-material
Decline degree very little has better insulating properties compared to metal ion filler is directly added.
(3) reduction-oxidation of area load zinc oxide is added in the preparation method of insulating heat-conductive cable cover(ing) of the invention
Graphene compounded mix, the addition of compounded mix can play the role of physics enhancing, and the biggish specific surface area of graphene increases
And the combination effect at base-material interface, the redox graphene piece after silane coupling agent surface treatment are participated in when base-material polymerize
Polymerization reaction accesses in polymer molecular chain, can play the role of transmitting stress, under the effect of external force, base-material and filler
Compound to need more energy that material internal can just occurred damaged, therefore the physical property of cable cover(ing) can on
It rises.
(4) modified lime stone, fatty alcohol, raw stone are added in the preparation method of insulating heat-conductive cable cover(ing) of the invention
Ash, ethyl alcohol occur under certain condition, and fatty alcohol alkyl chain is connected to the calcium hydroxide surface layer that reaction generates, shape by chemical bond
At the hydrophobic film with strong hydrophobicity, the stability and ageing-resistant ability of cable cover(ing) are improved, while between unclassified stores
Good dispersion, diversity are good, and when base-material generates gap, powder is fallen into gap, so that waterproof action further enhances；Into one
Step, which is added, handles casein by succinic anhydride, can be effectively improved emulsifiability, enhance dispersion performance.
(5) modified carbon nano-tube, carbon nanotube tool are added in the preparation method of insulating heat-conductive cable cover(ing) of the invention
There are good mechanical performance and heating conduction, is dispersed in base-material through the modified carbon nanotube of vinyltriethoxysilane
In, and be condensed with carbon-carbon double bond in base-material, so that carbon nanotube is combined closely in base-material, and compound with redox graphene
Filler cooperates, and forms thermal conducting path to further increase the heating conduction and mechanical performance of cable cover(ing).
Specific embodiment
Present invention will be further explained below with reference to specific examples.These embodiments are merely to illustrate the present invention and do not have to
In limiting the scope of the invention.
Embodiment 1
Present embodiments provide a kind of preparation method of insulating heat-conductive cable cover(ing), including following preparation step:
(1) prepare base-material: base-material is made of polypropylene, vinyl silicone oil, containing hydrogen silicone oil, platinum catalyst and alkynyl cyclohexanol, first
20min is mixed in containing hydrogen silicone oil, platinum catalyst and alkynyl cyclohexanol, each ingredient is uniformly mixed, vinyl is then added
10min is mixed in silicone oil and polypropylene, and vacuum defoamation 15min obtains base-material；
(2) it prepares compounded mix: taking 2 parts of redox graphene ultrasonic disperse in 100 parts of ethyl alcohol by weight, be added
5 parts of zinc nitrate hexahydrates and 2 parts of hexas, ultrasonic disperse 25min are evenly mixed in it in graphene dispersing solution；
Dispersion liquid is placed in reaction kettle, 100 DEG C of hydro-thermal reaction 4h, is used dehydrated alcohol centrifuge washing 3 times after being cooled to room temperature, after dry
12h is placed in 150 DEG C of baking ovens, makes zinc hydroxide is heated to be decomposed into zinc oxide and H2O obtains going back for area load zinc oxide
Former graphene oxide compounded mix；
(3) it prepares modified quicklime: fatty alcohol and ethyl alcohol is mixed evenly, quick lime is then added and water is mixed,
Drying and crushing after centrifugal dehydration is added casein and is uniformly mixed, and regulation system pH value to 7.5 continues to stir, and succinic acid is added
Acid anhydride, regulation system pH value to 8.2, spray drying obtain modified quicklime；
(4) it prepares modified carbon nano-tube: taking functionalized multi-wall carbonnanotubes, vinyltriethoxysilane and toluene is added, surpass
Sound is uniformly dispersed, and is warming up to 110 DEG C, and insulated and stirred 4h is washed after filtering with dehydrated alcohol, is warming up to 60 DEG C, is dried in vacuo
To modified carbon nano-tube；
(5) base-material of step (1) preparation, the modified raw stone of step (3) preparation are taken according to mass ratio 80:6:1:1:300:0.01
Compounded mix, dehydrated alcohol and silane coupling agent prepared by ash, the modified carbon nano-tube of step (4) preparation, step (2), will answer
It closes filler to be dispersed in dehydrated alcohol, obtains modified compounded mix with silane coupling agent graft modification, by modified compounded mix, change
Property quick lime, modified carbon nano-tube and base-material be uniformly mixed and be placed in 60 DEG C of thermostat water baths until alcohol solvent steams completely
Obtained mixture is sent into double screw extruder and is kneaded by hair, and granulation obtains insulating heat-conductive cable cover(ing).
The present embodiment step (1) polypropylene, vinyl silicone oil, containing hydrogen silicone oil, platinum catalyst and alkynyl cyclohexanol
Mass ratio is 100:80:6:0.3:0.03.
Redox graphene described in the present embodiment step (2) be graphene oxide is first prepared using Hummers method, then
It restores to obtain by hydrazine hydrate, ammonium hydroxide.
The present embodiment step (2) compounded mix partial size is 400 mesh.
The present embodiment step (3) fatty alcohol, ethyl alcohol, quick lime, water, casein and succinic anhydride mass ratio be 2:
6:30:150:6:1。
The present embodiment step (4) functionalized multi-wall carbonnanotubes, vinyltriethoxysilane and toluene by weight ratio
3:8:5.
The processing temperature that each section of the double screw extruder of the present embodiment step (5) are as follows: 135 DEG C of first segment, second segment 150
DEG C, 160 DEG C of third section, the 4th section 165 DEG C, the 5th section 195 DEG C, die head temperature is 185 DEG C.
Embodiment 2
Present embodiments provide a kind of preparation method of insulating heat-conductive cable cover(ing), including following preparation step:
(1) prepare base-material: base-material is made of polypropylene, vinyl silicone oil, containing hydrogen silicone oil, platinum catalyst and alkynyl cyclohexanol, first
25min is mixed in containing hydrogen silicone oil, platinum catalyst and alkynyl cyclohexanol, each ingredient is uniformly mixed, vinyl is then added
12min is mixed in silicone oil and polypropylene, and vacuum defoamation 15min obtains base-material；
(2) it prepares compounded mix: taking 2 parts of redox graphene ultrasonic disperse in 100 parts of ethyl alcohol by weight, be added
5 parts of zinc nitrate hexahydrates and 2 parts of hexas, ultrasonic disperse 25min are evenly mixed in it in graphene dispersing solution；
Dispersion liquid is placed in reaction kettle, 100 DEG C of hydro-thermal reaction 4h, is used dehydrated alcohol centrifuge washing 3 times after being cooled to room temperature, after dry
12h is placed in 150 DEG C of baking ovens, makes zinc hydroxide is heated to be decomposed into zinc oxide and H2O obtains going back for area load zinc oxide
Former graphene oxide compounded mix；
(3) it prepares modified quicklime: fatty alcohol and ethyl alcohol is mixed evenly, quick lime is then added and water is mixed,
Drying and crushing after centrifugal dehydration is added casein and is uniformly mixed, and regulation system pH value to 8 continues to stir, and succinic anhydride is added,
For regulation system pH value to 8.5, spray drying obtains modified quicklime；
(4) it prepares modified carbon nano-tube: taking functionalized multi-wall carbonnanotubes, vinyltriethoxysilane and toluene is added, surpass
Sound is uniformly dispersed, and is warming up to 110 DEG C, and insulated and stirred 5h is washed after filtering with dehydrated alcohol, is warming up to 65 DEG C, is dried in vacuo
To modified carbon nano-tube；
(5) base-material of step (1) preparation, the modified raw stone of step (3) preparation are taken according to mass ratio 80:6:1:1:300:0.01
Compounded mix, dehydrated alcohol and silane coupling agent prepared by ash, the modified carbon nano-tube of step (4) preparation, step (2), will answer
It closes filler to be dispersed in dehydrated alcohol, obtains modified compounded mix with silane coupling agent graft modification, by modified compounded mix, change
Property quick lime, modified carbon nano-tube and base-material be uniformly mixed and be placed in 60 DEG C of thermostat water baths until alcohol solvent steams completely
Obtained mixture is sent into double screw extruder and is kneaded by hair, and granulation obtains insulating heat-conductive cable cover(ing).
The present embodiment step (1) polypropylene, vinyl silicone oil, containing hydrogen silicone oil, platinum catalyst and alkynyl cyclohexanol
Mass ratio is 150:90:7:0.4:0.04.
Redox graphene described in the present embodiment step (2) be graphene oxide is first prepared using Hummers method, then
It restores to obtain by hydrazine hydrate, ammonium hydroxide.
The present embodiment step (2) compounded mix partial size is 450 mesh.
The present embodiment step (3) fatty alcohol, ethyl alcohol, quick lime, water, casein and succinic anhydride mass ratio be 3:
8:40:200:8:2。
The present embodiment step (4) functionalized multi-wall carbonnanotubes, vinyltriethoxysilane and toluene by weight ratio
3:8:5.
The processing temperature that each section of the double screw extruder of the present embodiment step (5) are as follows: 140 DEG C of first segment, second segment 152
DEG C, 162 DEG C of third section, the 4th section 170 DEG C, the 5th section 200 DEG C, die head temperature is 188 DEG C.
Embodiment 3
Present embodiments provide a kind of preparation method of insulating heat-conductive cable cover(ing), including following preparation step:
(1) prepare base-material: base-material is made of polypropylene, vinyl silicone oil, containing hydrogen silicone oil, platinum catalyst and alkynyl cyclohexanol, first
30min is mixed in containing hydrogen silicone oil, platinum catalyst and alkynyl cyclohexanol, each ingredient is uniformly mixed, vinyl is then added
15min is mixed in silicone oil and polypropylene, and vacuum defoamation 15min obtains base-material；
(2) it prepares compounded mix: taking 2 parts of redox graphene ultrasonic disperse in 100 parts of ethyl alcohol by weight, be added
5 parts of zinc nitrate hexahydrates and 2 parts of hexas, ultrasonic disperse 25min are evenly mixed in it in graphene dispersing solution；
Dispersion liquid is placed in reaction kettle, 100 DEG C of hydro-thermal reaction 4h, is used dehydrated alcohol centrifuge washing 3 times after being cooled to room temperature, after dry
12h is placed in 150 DEG C of baking ovens, makes zinc hydroxide is heated to be decomposed into zinc oxide and H2O obtains going back for area load zinc oxide
Former graphene oxide compounded mix；
(3) it prepares modified quicklime: fatty alcohol and ethyl alcohol is mixed evenly, quick lime is then added and water is mixed,
Drying and crushing after centrifugal dehydration is added casein and is uniformly mixed, and regulation system pH value to 8.5 continues to stir, and succinic acid is added
Acid anhydride, regulation system pH value to 9, spray drying obtain modified quicklime；
(4) it prepares modified carbon nano-tube: taking functionalized multi-wall carbonnanotubes, vinyltriethoxysilane and toluene is added, surpass
Sound is uniformly dispersed, and is warming up to 110 DEG C, and insulated and stirred 6h is washed after filtering with dehydrated alcohol, is warming up to 70 DEG C, is dried in vacuo
To modified carbon nano-tube；
(5) base-material of step (1) preparation, the modified raw stone of step (3) preparation are taken according to mass ratio 80:6:1:1:300:0.01
Compounded mix, dehydrated alcohol and silane coupling agent prepared by ash, the modified carbon nano-tube of step (4) preparation, step (2), will answer
It closes filler to be dispersed in dehydrated alcohol, obtains modified compounded mix with silane coupling agent graft modification, by modified compounded mix, change
Property quick lime, modified carbon nano-tube and base-material be uniformly mixed and be placed in 60 DEG C of thermostat water baths until alcohol solvent steams completely
Obtained mixture is sent into double screw extruder and is kneaded by hair, and granulation obtains insulating heat-conductive cable cover(ing).
The present embodiment step (1) polypropylene, vinyl silicone oil, containing hydrogen silicone oil, platinum catalyst and alkynyl cyclohexanol
Mass ratio is 200:8:0.5:0.05.
Redox graphene described in the present embodiment step (2) be graphene oxide is first prepared using Hummers method, then
It restores to obtain by hydrazine hydrate, ammonium hydroxide.
The present embodiment step (2) compounded mix partial size is 500 mesh.
The present embodiment step (3) fatty alcohol, ethyl alcohol, quick lime, water, casein and succinic anhydride mass ratio be 5:
10:50:250:10:3。
The present embodiment step (4) functionalized multi-wall carbonnanotubes, vinyltriethoxysilane and toluene by weight ratio
3:8:5.
The processing temperature that each section of the double screw extruder of the present embodiment step (5) are as follows: 145 DEG C of first segment, second segment 155
DEG C, 165 DEG C of third section, the 4th section 175 DEG C, the 5th section 205 DEG C, die head temperature is 190 DEG C.
Comparative example 1 and comparative example 2 are set, and comparative example 1 uses notification number public for the Chinese invention patent of CN206558256U
A kind of flame-proof control cable opened, comparative example 2 use disclosed in the Chinese invention patent application of Publication No. CN106832507A
The cable cover(ing) of embodiment 1-3, comparative example 1 and comparative example 2 are carried out performance survey by a kind of heat-resisting thermally conductive PE cable material
Examination, as a result as shown in table 1 below.
Table 1
It can be seen that embodiment 1-3 from the test data of upper table and prepare the volume resistivity of cable cover(ing) and be apparently higher than comparative example 1
With comparative example 2, illustrate that embodiment 1-3 prepares cable cover(ing) with better insulation performance；Embodiment 1-3 prepares cable cover(ing)
Thermal conductivity is apparently higher than comparative example 1 and comparative example 2, illustrates that embodiment 1-3 prepares cable cover(ing) with better heating conduction；It is real
It applies that a 1-3 prepares the tensile strength of cable cover(ing) and shore hardness is apparently higher than comparative example 1 and comparative example 2, illustrates embodiment 1-3
Cable cover(ing) is prepared with physically better performance.In conclusion the cable cover(ing) that method of the invention is prepared is compared to existing
Technology has better insulating properties, thermal conductivity and physical property.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring substantive content of the invention.
Claims (10)
1. a kind of preparation method of insulating heat-conductive cable cover(ing), which is characterized in that including following preparation step:
(1) prepare base-material: base-material is made of polypropylene, vinyl silicone oil, containing hydrogen silicone oil, platinum catalyst and alkynyl cyclohexanol, first
20-30min is mixed in containing hydrogen silicone oil, platinum catalyst and alkynyl cyclohexanol, each ingredient is uniformly mixed, ethylene is then added
10-15min is mixed in base silicone oil and polypropylene, and vacuum defoamation 15min obtains base-material；
(2) it prepares compounded mix: taking 2 parts of redox graphene ultrasonic disperse in 100 parts of ethyl alcohol by weight, be added
5 parts of zinc nitrate hexahydrates and 2 parts of hexas, ultrasonic disperse 25min are evenly mixed in it in graphene dispersing solution；
Dispersion liquid is placed in reaction kettle, 100 DEG C of hydro-thermal reaction 4h, is used dehydrated alcohol centrifuge washing 3 times after being cooled to room temperature, after dry
12h is placed in 150 DEG C of baking ovens, makes zinc hydroxide is heated to be decomposed into zinc oxide and H2O obtains going back for area load zinc oxide
Former graphene oxide compounded mix；
(3) it prepares modified quicklime: fatty alcohol and ethyl alcohol is mixed evenly, quick lime is then added and water is mixed,
Drying and crushing after centrifugal dehydration is added casein and is uniformly mixed, and regulation system pH value to 7.5-8.5 continues to stir, and amber is added
Acid anhydrides, regulation system pH value to 8.2-9, spray drying obtain modified quicklime；
(4) it prepares modified carbon nano-tube: taking functionalized multi-wall carbonnanotubes, vinyltriethoxysilane and toluene is added, surpass
Sound is uniformly dispersed, and is warming up to 110 DEG C, and insulated and stirred 4-6h is washed after filtering with dehydrated alcohol, is warming up to 60-70 DEG C, vacuum is dry
It is dry to obtain modified carbon nano-tube；
(5) base-material of step (1) preparation, the modified raw stone of step (3) preparation are taken according to mass ratio 80:6:1:1:300:0.01
Compounded mix, dehydrated alcohol and silane coupling agent prepared by ash, the modified carbon nano-tube of step (4) preparation, step (2), will answer
It closes filler to be dispersed in dehydrated alcohol, obtains modified compounded mix with silane coupling agent graft modification, by modified compounded mix, change
Property quick lime, modified carbon nano-tube and base-material be uniformly mixed and be placed in 60 DEG C of thermostat water baths until alcohol solvent steams completely
Obtained mixture is sent into double screw extruder and is kneaded by hair, and granulation obtains insulating heat-conductive cable cover(ing).
2. a kind of preparation method of insulating heat-conductive cable cover(ing) according to claim 1, it is characterised in that: step (1) is described
Polypropylene, vinyl silicone oil, containing hydrogen silicone oil, platinum catalyst and alkynyl cyclohexanol mass ratio be 100-200:80-100:6-8:
0.3-0.5:0.03-0.05。
3. a kind of preparation method of insulating heat-conductive cable cover(ing) according to claim 1, it is characterised in that: step (1) is described
Polypropylene, vinyl silicone oil, containing hydrogen silicone oil, platinum catalyst and alkynyl cyclohexanol mass ratio be 150:90:7:0.4:0.04.
4. a kind of preparation method of insulating heat-conductive cable cover(ing) according to claim 1, it is characterised in that: step (2) is described
Redox graphene be graphene oxide first to be prepared using Hummers method, then restore to obtain by hydrazine hydrate, ammonium hydroxide.
5. a kind of preparation method of insulating heat-conductive cable cover(ing) according to claim 1, it is characterised in that: step (2) is described
Compounded mix partial size is 400-500 mesh.
6. a kind of preparation method of insulating heat-conductive cable cover(ing) according to claim 1, it is characterised in that: step (3) is described
Fatty alcohol, ethyl alcohol, quick lime, water, casein and succinic anhydride mass ratio be 2-5:6-10:30-50:150-250:6-10:
1-3。
7. a kind of preparation method of insulating heat-conductive cable cover(ing) according to claim 1, it is characterised in that: step (3) is described
Fatty alcohol, ethyl alcohol, quick lime, water, casein and succinic anhydride mass ratio be 3:8:40:200:8:2.
8. a kind of preparation method of insulating heat-conductive cable cover(ing) according to claim 1, it is characterised in that: step (4) is described
Functionalized multi-wall carbonnanotubes, vinyltriethoxysilane and toluene by weight ratio 3:8:5.
9. a kind of preparation method of insulating heat-conductive cable cover(ing) according to claim 1, which is characterized in that step (5) is described
The processing temperature that each section of double screw extruder are as follows: 135-145 DEG C of first segment, 150-155 DEG C of second segment, 160-165 DEG C of third section,
4th section 165-175 DEG C, the 5th section 195-205 DEG C, die head temperature is 185-190 DEG C.
10. a kind of preparation method of insulating heat-conductive cable cover(ing) according to claim 1, which is characterized in that step (5) is described
The processing temperature that each section of double screw extruder are as follows: 140 DEG C of first segment, 150 DEG C of second segment, 160 DEG C of third section, the 4th section 165
DEG C, the 5th section 200 DEG C, die head temperature is 188 DEG C.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111900273A (en) * | 2020-07-16 | 2020-11-06 | 惠州市吉昀精密部件有限公司 | Heat-dissipation waterproof composite lithium ion battery shell material and preparation method thereof |
| CN114898929A (en) * | 2022-06-06 | 2022-08-12 | 浙江汉信光电股份有限公司 | Photoelectric composite cable |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111900273A (en) * | 2020-07-16 | 2020-11-06 | 惠州市吉昀精密部件有限公司 | Heat-dissipation waterproof composite lithium ion battery shell material and preparation method thereof |
| CN114898929A (en) * | 2022-06-06 | 2022-08-12 | 浙江汉信光电股份有限公司 | Photoelectric composite cable |
| CN114898929B (en) * | 2022-06-06 | 2024-03-22 | 浙江汉信光电股份有限公司 | Photoelectric composite cable |
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