CN104610633A - Two-step silane crosslinked polyethylene aerial insulation material and preparation technology thereof - Google Patents

Two-step silane crosslinked polyethylene aerial insulation material and preparation technology thereof Download PDF

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CN104610633A
CN104610633A CN201510020977.4A CN201510020977A CN104610633A CN 104610633 A CN104610633 A CN 104610633A CN 201510020977 A CN201510020977 A CN 201510020977A CN 104610633 A CN104610633 A CN 104610633A
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density polyethylene
polyethylene
crosslinked polyethylene
insulating material
low density
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何军
冯本青
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Anhui Kezheng New Materials Co Ltd
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/04Homopolymers or copolymers of ethene
    • C08L23/06Polyethene
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30Insulators 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
    • H01B3/44Insulators 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
    • H01B3/441Insulators 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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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/011Nanostructured additives
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08L2203/00Applications
    • C08L2203/20Applications use in electrical or conductive gadgets
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025Polymer 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
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00Properties characterising the ingredient of the composition
    • C08L2207/06Properties of polyethylene
    • C08L2207/062HDPE
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00Properties characterising the ingredient of the composition
    • C08L2207/06Properties of polyethylene
    • C08L2207/066LDPE (radical process)
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2312/00Crosslinking
    • C08L2312/08Crosslinking by silane

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Abstract

The invention discloses a two-step silane crosslinked polyethylene aerial insulation material and a preparation technology thereof, and relates to the technical field of cable material production. The two-step silane crosslinked polyethylene aerial insulation material comprises a component A and a component B, wherein the component A is prepared through metering, drying, plasticizing, mixing, extruding, granulating, underwater cutting and drying, the component B is prepared through metering and mixing, and the components are subjected to vacuum packaging by aluminum plastics finally. Three different types of polyethylene are adopted as main raw materials, nanometre ceramic powder is added simultaneously for modification, other assistants with various functions are added, and the target insulation material is prepared with a two-step method; the insulation material is black and has good electrical insulation property, good mechanical property and excellent anti-aging and ultraviolet-resistant capacity, the long-term allowed maximum working temperature is 90 DEG C, and the insulation material is applicable to crosslinked aerial wires and cables of 10 KV and below.

Description

Two-step approach organosilane crosslinked polyethylene overhead insulating material and preparation technology thereof
Technical field:
The present invention relates to CABLE MATERIALS production technical field, be specifically related to a kind of two-step approach organosilane crosslinked polyethylene overhead insulating material and preparation technology thereof.
Background technology:
The Working Life of overhead conductor cable and people is undivided, and almost overhead conductor cable can be used in each place.Along with the development of economy, overhead conductor cable consumption is in continuous multiplication, wherein because having, volume specific resistance is high, dielectric loss is little, heat aging property is good, good, the easy processing of stress crack resistance performance and the feature such as inexpensive for crosslinked polyethylene overhead insulating material, and its consumption in electric wire is also doubled thereupon.
Current crosslinked polyethylene mainly contains peroxide crosslinking, radiation crosslinking and crosslinked with silicane three kinds of modes, and wherein organosilane crosslinked polyethylene on polyethylene backbone, is introduced crosslinkable organoalkoxysilane by grafting or copolymerization and obtained.Because crosslinked with silicane does not need special cross-linking apparatus, technology controlling and process is fairly simple again, and excellent electric properties, therefore has unrivaled advantage in mesolow electric wire field.Silanes crosslinked cable material can be divided into single stage method and two-step approach according to or without graft crosslinking reaction, and wherein two-step approach organosilane crosslinked polyethylene overhead insulating material has complex manufacturing, feature that cost is high, is therefore in use severely limited.
Summary of the invention:
Technical problem to be solved by this invention is the two-step approach organosilane crosslinked polyethylene overhead insulating material and the preparation technology thereof that provide a kind of excellent performance and applied range.
Technical problem to be solved by this invention adopts following technical scheme to realize:
A kind of two-step approach organosilane crosslinked polyethylene overhead insulating material, comprises A material and B material, and described A material is made up of the raw material of following mass fraction:
High density polyethylene(HDPE) 60-65 part, linear low density polyethylene 40-45 part, Low Density Polyethylene 15-20 part, nano-ceramic powder 10-12 part, polyoxyethylene glycol 10-12 part, glass fibre 8-10 part, polyvinyl chloride 8-10 part, silane coupling agent 5-8 part, antimonous oxide 5-8 part, polynite 4-6 part, oxidation inhibitor 3-5 part, UV light absorber 3-5 part, anti-retraction agent 2-5 part, fire retardant 2-3 part, polyethylene wax 1-2 part, N-substituted maleimide amine 0.1-0.5 part.
Described B material is made up of the raw material of following mass fraction:
High density polyethylene(HDPE) 55-60 part, linear low density polyethylene 35-40 part, Low Density Polyethylene 15-20 part, black masterbatch 12-15 part, diatomite 5-8 part, polyvinyl alcohol 3-5 part, dimethyl silicone oil 3-5 part.
The particle diameter of described nano-ceramic powder is 80-100 nanometer.
Described silane coupling agent is selected from the one in methyltrimethoxy silane, vinyltrimethoxy silane, vinyltriethoxysilane, vinyl three (2-methoxy ethoxy) silane, vinyl silane triisopropoxide, octyltri-ethoxysilane, β-(3,4-epoxycyclohexyl) ethyl trimethoxy silane, γ-glycidyl ether oxygen propyl methyldiethoxysilane.
Described oxidation inhibitor is made up of antioxidant 1010 and irgasfos 168, and both mass ratioes are 1:1.
Described UV light absorber is ultraviolet absorbent UV-531.
Described anti-retraction agent is selected from a kind of polyolefin elastomer of high workability, and melt flow rate (MFR) is greater than 10g/10min.
Described fire retardant is selected from the one in aluminium hydroxide, magnesium hydroxide, zinc borate and ammonium polyphosphate.
A preparation technology for two-step approach organosilane crosslinked polyethylene overhead insulating material, comprises the following steps:
(1) polynite in first being expected by A and polyoxyethylene glycol join in sand mill, add polyethylene wax and fire retardant again after sand milling 15-20min, continue sand milling and are less than 10um to fineness, obtain mixed powder I;
(2) mixed powder I is joined in high-speed mixer, then nano-ceramic powder, glass fibre, antimonous oxide, UV light absorber, anti-retraction agent and N-substituted maleimide amine is added, under 500r/min, mix 10-15min, obtain mixed powder II;
(3) high density polyethylene(HDPE), linear low density polyethylene and Low Density Polyethylene in first being expected by A suck raw material cabin by vacuum system after weightlessness weighs, send into dryer again and carry out drying, then added in forcing machine, oxidation inhibitor is added after being warming up to 160 DEG C, add silane coupling agent, polyvinyl chloride and mixed powder II subsequently, by screw rod Homogeneous phase mixing, mixed melt is extruded through forcing machine;
(4) the A material after extruding enters tablets press and carries out granulation, and in granulating working procedure, cutting adopts imderwater cutting, carries out water-cooled, the Vacuum discharge after drying of the material after water-cooled simultaneously, and finally adopt Aluminum-plastic composite bag to carry out vacuum packaging, the A that must insulate expects;
(5) black masterbatch, diatomite, polyvinyl alcohol and dimethyl silicone oil in being expected by B join in high-speed mixer, and under 500r/min, mix 10-15min, then join in sand mill, sand milling is less than 10um to fineness, obtains mixed powder III;
(6) high density polyethylene(HDPE), linear low density polyethylene, Low Density Polyethylene and mixed powder III in being expected by B suck each raw material cabin by vacuum system after weightlessness weighs, mix under normal temperature in proportion, Vacuum discharge is passed through after having mixed, finally adopt Aluminum-plastic composite bag to carry out vacuum packaging, the B that must insulate expects.
Drying temperature in described step (3) is 70-80 DEG C, and time of drying is 1-2h.
Forcing machine body temperature in described step (3) is 150-200 DEG C, and head temperature is 200-220 DEG C.
The invention has the beneficial effects as follows: the present invention with three kinds of dissimilar polyethylene for main raw material, add nano-ceramic powder simultaneously and carry out modification, and add other various functional agent, target Insulation Material is obtained by two-step approach, this Insulation Material is black, and have good electrical insulation capability, mechanical property, excellent anti-aging and ultraviolet-resistant capacity, long-term permission maximum operating temperature is 90 DEG C, is applicable to 10KV and following crosslinked overhead conductor cable.
Embodiment:
The technique means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment, setting forth the present invention further.
Embodiment 1
(1) the 4kg polynite in first being expected by A and 10kg polyoxyethylene glycol join in sand mill, add 1kg polyethylene wax and 2kg zinc borate after sand milling 15min again, continue sand milling and are less than 10um to fineness, obtain mixed powder I;
(2) mixed powder I is joined in high-speed mixer, then 10kg nano-ceramic powder, 8kg glass fibre, 5kg antimonous oxide, 3kg ultraviolet absorbent UV-531, the agent of 2kg anti-retraction and 0.2kgN-substituted maleimide amine is added, under 500r/min, mix 10min, obtain mixed powder II;
(3) the 60kg high density polyethylene(HDPE) in first A being expected, 40kg linear low density polyethylene and 15kg Low Density Polyethylene suck raw material cabin by vacuum system after weightlessness weighs, send into dryer again and carry out drying, drying temperature is 70 DEG C, time of drying is 1h, then added in forcing machine, 2kg antioxidant 1010 and 2kg irgasfos 168 is added after being warming up to 160 DEG C, add 5kg vinyltrimethoxy silane subsequently, 8kg polyvinyl chloride and mixed powder II, by screw rod Homogeneous phase mixing, mixed melt is extruded through forcing machine, body temperature is 150-200 DEG C, head temperature is 200-220 DEG C,
(4) the A material after extruding enters tablets press and carries out granulation, and in granulating working procedure, cutting adopts imderwater cutting, carries out water-cooled, the Vacuum discharge after drying of the material after water-cooled simultaneously, and finally adopt Aluminum-plastic composite bag to carry out vacuum packaging, the A that must insulate expects;
(5) 12kg black masterbatch, 5kg diatomite, 3kg polyvinyl alcohol and 3kg dimethyl silicone oil in being expected by B join in high-speed mixer, 10min is mixed under 500r/min, then join in sand mill, sand milling is less than 10um to fineness, obtains mixed powder III;
(6) 55kg high density polyethylene(HDPE), 35kg linear low density polyethylene, 15kg Low Density Polyethylene and mixed powder III in being expected by B suck each raw material cabin by vacuum system after weightlessness weighs, mix under normal temperature in proportion, Vacuum discharge is passed through after having mixed, finally adopt Aluminum-plastic composite bag to carry out vacuum packaging, the B that must insulate expects.
Embodiment 2
(1) the 5kg polynite in first being expected by A and 11kg polyoxyethylene glycol join in sand mill, add 2kg polyethylene wax and 2kg zinc borate after sand milling 15min again, continue sand milling and are less than 10um to fineness, obtain mixed powder I;
(2) mixed powder I is joined in high-speed mixer, then 11kg nano-ceramic powder, 9kg glass fibre, 6kg antimonous oxide, 4kg ultraviolet absorbent UV-531, the agent of 3kg anti-retraction and 0.4kgN-substituted maleimide amine is added, under 500r/min, mix 10min, obtain mixed powder II;
(3) the 62kg high density polyethylene(HDPE) in first A being expected, 43kg linear low density polyethylene and 18kg Low Density Polyethylene suck raw material cabin by vacuum system after weightlessness weighs, send into dryer again and carry out drying, drying temperature is 70 DEG C, time of drying is 1h, then added in forcing machine, 2kg antioxidant 1010 and 2kg irgasfos 168 is added after being warming up to 160 DEG C, add 6kg vinyltrimethoxy silane subsequently, 9kg polyvinyl chloride and mixed powder II, by screw rod Homogeneous phase mixing, mixed melt is extruded through forcing machine, body temperature is 150-200 DEG C, head temperature is 200-220 DEG C,
(4) the A material after extruding enters tablets press and carries out granulation, and in granulating working procedure, cutting adopts imderwater cutting, carries out water-cooled, the Vacuum discharge after drying of the material after water-cooled simultaneously, and finally adopt Aluminum-plastic composite bag to carry out vacuum packaging, the A that must insulate expects;
(5) 13kg black masterbatch, 6kg diatomite, 4kg polyvinyl alcohol and 4kg dimethyl silicone oil in being expected by B join in high-speed mixer, 15min is mixed under 500r/min, then join in sand mill, sand milling is less than 10um to fineness, obtains mixed powder III;
(6) 58kg high density polyethylene(HDPE), 38kg linear low density polyethylene, 17kg Low Density Polyethylene and mixed powder III in being expected by B suck each raw material cabin by vacuum system after weightlessness weighs, mix under normal temperature in proportion, Vacuum discharge is passed through after having mixed, finally adopt Aluminum-plastic composite bag to carry out vacuum packaging, the B that must insulate expects.
Embodiment 3
(1) the 6kg polynite in first being expected by A and 12kg polyoxyethylene glycol join in sand mill, add 2kg polyethylene wax and 3kg zinc borate after sand milling 15min again, continue sand milling and are less than 10um to fineness, obtain mixed powder I;
(2) mixed powder I is joined in high-speed mixer, then 12kg nano-ceramic powder, 10kg glass fibre, 8kg antimonous oxide, 5kg ultraviolet absorbent UV-531, the agent of 5kg anti-retraction and 0.5kgN-substituted maleimide amine is added, under 500r/min, mix 15min, obtain mixed powder II;
(3) the 65kg high density polyethylene(HDPE) in first A being expected, 45kg linear low density polyethylene and 20kg Low Density Polyethylene suck raw material cabin by vacuum system after weightlessness weighs, send into dryer again and carry out drying, drying temperature is 70 DEG C, time of drying is 1h, then added in forcing machine, 2kg antioxidant 1010 and 2kg irgasfos 168 is added after being warming up to 160 DEG C, add 8kg vinyltrimethoxy silane subsequently, 10kg polyvinyl chloride and mixed powder II, by screw rod Homogeneous phase mixing, mixed melt is extruded through forcing machine, body temperature is 150-200 DEG C, head temperature is 200-220 DEG C,
(4) the A material after extruding enters tablets press and carries out granulation, and in granulating working procedure, cutting adopts imderwater cutting, carries out water-cooled, the Vacuum discharge after drying of the material after water-cooled simultaneously, and finally adopt Aluminum-plastic composite bag to carry out vacuum packaging, the A that must insulate expects;
(5) 15kg black masterbatch, 8kg diatomite, 5kg polyvinyl alcohol and 5kg dimethyl silicone oil in being expected by B join in high-speed mixer, 15min is mixed under 500r/min, then join in sand mill, sand milling is less than 10um to fineness, obtains mixed powder III;
(6) 60kg high density polyethylene(HDPE), 40kg linear low density polyethylene, 20kg Low Density Polyethylene and mixed powder III in being expected by B suck each raw material cabin by vacuum system after weightlessness weighs, mix under normal temperature in proportion, Vacuum discharge is passed through after having mixed, finally adopt Aluminum-plastic composite bag to carry out vacuum packaging, the B that must insulate expects.
Carry out mechanical and physical performance and electric property detection to two-step approach organosilane crosslinked polyethylene overhead insulating material prepared by embodiment 1-3, result is as shown in table 1.
The mechanical and physical performance of table 1 two-step approach organosilane crosslinked polyethylene overhead insulating material and electric property
As can be seen from Table 1, the two-step approach organosilane crosslinked polyethylene overhead insulating material that prepared by embodiment of the present invention 1-3 has good electrical insulation capability, mechanical property, excellent anti-aging and ultraviolet-resistant capacity.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.

Claims (10)

1. a two-step approach organosilane crosslinked polyethylene overhead insulating material, comprises A material and B material, it is characterized in that, described A material is made up of the raw material of following mass fraction:
High density polyethylene(HDPE) 60-65 part, linear low density polyethylene 40-45 part, Low Density Polyethylene 15-20 part, nano-ceramic powder 10-12 part, polyoxyethylene glycol 10-12 part, glass fibre 8-10 part, polyvinyl chloride 8-10 part, silane coupling agent 5-8 part, antimonous oxide 5-8 part, polynite 4-6 part, oxidation inhibitor 3-5 part, UV light absorber 3-5 part, anti-retraction agent 2-5 part, fire retardant 2-3 part, polyethylene wax 1-2 part, N-substituted maleimide amine 0.1-0.5 part.
Described B material is made up of the raw material of following mass fraction:
High density polyethylene(HDPE) 55-60 part, linear low density polyethylene 35-40 part, Low Density Polyethylene 15-20 part, black masterbatch 12-15 part, diatomite 5-8 part, polyvinyl alcohol 3-5 part, dimethyl silicone oil 3-5 part.
2. two-step approach organosilane crosslinked polyethylene overhead insulating material according to claim 1, is characterized in that: the particle diameter of described nano-ceramic powder is 80-100 nanometer.
3. two-step approach organosilane crosslinked polyethylene overhead insulating material according to claim 1, it is characterized in that: described silane coupling agent is selected from the one in methyltrimethoxy silane, vinyltrimethoxy silane, vinyltriethoxysilane, vinyl three (2-methoxy ethoxy) silane, vinyl silane triisopropoxide, octyltri-ethoxysilane, β-(3,4-epoxycyclohexyl) ethyl trimethoxy silane, γ-glycidyl ether oxygen propyl methyldiethoxysilane.
4. two-step approach organosilane crosslinked polyethylene overhead insulating material according to claim 1, is characterized in that: described oxidation inhibitor is made up of antioxidant 1010 and irgasfos 168, and both mass ratioes are 1:1.
5. two-step approach organosilane crosslinked polyethylene overhead insulating material according to claim 1, is characterized in that: described UV light absorber is ultraviolet absorbent UV-531.
6. two-step approach organosilane crosslinked polyethylene overhead insulating material according to claim 1, is characterized in that: described anti-retraction agent is selected from a kind of polyolefin elastomer of high workability, and melt flow rate (MFR) is greater than 10g/10min.
7. two-step approach organosilane crosslinked polyethylene overhead insulating material according to claim 1, is characterized in that: described fire retardant is selected from the one in aluminium hydroxide, magnesium hydroxide, zinc borate and ammonium polyphosphate.
8. a preparation technology for two-step approach organosilane crosslinked polyethylene overhead insulating material, is characterized in that, comprises the following steps:
(1) polynite in first being expected by A and polyoxyethylene glycol join in sand mill, add polyethylene wax and fire retardant again after sand milling 15-20min, continue sand milling and are less than 10um to fineness, obtain mixed powder I;
(2) mixed powder I is joined in high-speed mixer, then nano-ceramic powder, glass fibre, antimonous oxide, UV light absorber, anti-retraction agent and N-substituted maleimide amine is added, under 500r/min, mix 10-15min, obtain mixed powder II;
(3) high density polyethylene(HDPE), linear low density polyethylene and Low Density Polyethylene in first being expected by A suck raw material cabin by vacuum system after weightlessness weighs, send into dryer again and carry out drying, then added in forcing machine, oxidation inhibitor is added after being warming up to 160 DEG C, add silane coupling agent, polyvinyl chloride and mixed powder II subsequently, by screw rod Homogeneous phase mixing, mixed melt is extruded through forcing machine;
(4) the A material after extruding enters tablets press and carries out granulation, and in granulating working procedure, cutting adopts imderwater cutting, carries out water-cooled, the Vacuum discharge after drying of the material after water-cooled simultaneously, and finally adopt Aluminum-plastic composite bag to carry out vacuum packaging, the A that must insulate expects;
(5) black masterbatch, diatomite, polyvinyl alcohol and dimethyl silicone oil in being expected by B join in high-speed mixer, and under 500r/min, mix 10-15min, then join in sand mill, sand milling is less than 10um to fineness, obtains mixed powder III;
(6) high density polyethylene(HDPE), linear low density polyethylene, Low Density Polyethylene and mixed powder III in being expected by B suck each raw material cabin by vacuum system after weightlessness weighs, mix under normal temperature in proportion, Vacuum discharge is passed through after having mixed, finally adopt Aluminum-plastic composite bag to carry out vacuum packaging, the B that must insulate expects.
9. the preparation technology of two-step approach organosilane crosslinked polyethylene overhead insulating material according to claim 8, it is characterized in that: the drying temperature in described step (3) is 70-80 DEG C, time of drying is 1-2h.
10. the preparation technology of two-step approach organosilane crosslinked polyethylene overhead insulating material according to claim 8, it is characterized in that: the forcing machine body temperature in described step (3) is 150-200 DEG C, head temperature is 200-220 DEG C.
CN201510020977.4A 2015-01-15 2015-01-15 Two-step silane crosslinked polyethylene aerial insulation material and preparation technology thereof Pending CN104610633A (en)

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CN104893060A (en) * 2015-05-25 2015-09-09 力拓电力合金电缆股份有限公司 Impact-resistant construction low-smoke halogen-free flame-retardant cable material and preparation method thereof
CN104910477A (en) * 2015-05-25 2015-09-16 力拓电力合金电缆股份有限公司 High strength low smoke halogen-free flame retardant cable material for buildings and preparation method thereof
CN104910482A (en) * 2015-05-25 2015-09-16 力拓电力合金电缆股份有限公司 Nano-clay low smoke halogen-free flame retardant cable material for buildings and preparation method thereof
CN104945748A (en) * 2015-05-25 2015-09-30 力拓电力合金电缆股份有限公司 High-toughness low-smoke halogen-free flame-retardant cable material for construction and preparation method thereof
CN104945749A (en) * 2015-05-25 2015-09-30 力拓电力合金电缆股份有限公司 Architectural high-insulativity low-smoke halogen-free flame-retardant cable material and preparation method thereof
CN105670088A (en) * 2016-04-14 2016-06-15 季红军 Preparation method of halogen-free high-fire-retardancy cable material
CN106188802A (en) * 2016-07-08 2016-12-07 浙江太湖远大新材料股份有限公司 Two step method prepares 10kV and the method for following silver gray electric wire organosilane crosslinked polyethylene insulation material
CN106188801A (en) * 2016-07-08 2016-12-07 浙江太湖远大新材料股份有限公司 Two step method prepares the method for silver gray aerial insulated cable Insulation Material
CN108676228A (en) * 2018-05-16 2018-10-19 安徽华美高分子材料科技有限公司 A kind of tension polyethylene track CABLE MATERIALS and preparation method thereof

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CN104893060A (en) * 2015-05-25 2015-09-09 力拓电力合金电缆股份有限公司 Impact-resistant construction low-smoke halogen-free flame-retardant cable material and preparation method thereof
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CN104910482A (en) * 2015-05-25 2015-09-16 力拓电力合金电缆股份有限公司 Nano-clay low smoke halogen-free flame retardant cable material for buildings and preparation method thereof
CN104945748A (en) * 2015-05-25 2015-09-30 力拓电力合金电缆股份有限公司 High-toughness low-smoke halogen-free flame-retardant cable material for construction and preparation method thereof
CN104945749A (en) * 2015-05-25 2015-09-30 力拓电力合金电缆股份有限公司 Architectural high-insulativity low-smoke halogen-free flame-retardant cable material and preparation method thereof
CN105670088A (en) * 2016-04-14 2016-06-15 季红军 Preparation method of halogen-free high-fire-retardancy cable material
CN106188802A (en) * 2016-07-08 2016-12-07 浙江太湖远大新材料股份有限公司 Two step method prepares 10kV and the method for following silver gray electric wire organosilane crosslinked polyethylene insulation material
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