CN104610635A - Silane crosslinked-polyethylene aerial insulation material adopting one-step method and preparation technology of silane crosslinked-polyethylene aerial insulation material - Google Patents
Silane crosslinked-polyethylene aerial insulation material adopting one-step method and preparation technology of silane crosslinked-polyethylene aerial insulation material Download PDFInfo
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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
- 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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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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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- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C08L2203/20—Applications use in electrical or conductive gadgets
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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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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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C08L2207/00—Properties characterising the ingredient of the composition
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- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2312/00—Crosslinking
- C08L2312/08—Crosslinking by silane
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Abstract
The invention discloses a silane crosslinked-polyethylene aerial insulation material adopting a one-step method and a preparation technology of the silane crosslinked-polyethylene aerial insulation material, and relates to the technical field of cable material production. The silane crosslinked-polyethylene aerial insulation material is prepared from raw materials in parts by mass as follows: 70-80 parts of high density polyethylene, 40-45 parts of linear low density polyethylene, 20-25 parts of low density polyethylene, 15-28 parts of nano ceramic powder, 12-15 parts of soft kaolin, 10-13 parts of polyethylene glycol, 8-10 parts of polyvinyl chloride, 5-8 parts of polyvinyl alcohol, 5-8 parts of a silane coupling agent, 3-5 parts of polyethylene wax, 3-5 parts of black master batch, 2-3 parts of an ultraviolet light absorber, 2-3 parts of a flame retardant, 1-2 parts of an antioxidant, 0.5-1 part of copper powder and 0.1-0.5 parts of dicumyl peroxide. The prepared insulation material is black, has good electrical insulation property and mechanical property as well as excellent anti-aging and ultraviolet resistant capacity, allows the highest operating temperature to be 90 DEG C for a long time and is suitable for crosslinked aerial wires and cables of 10 KV and below.
Description
Technical field:
The present invention relates to CABLE MATERIALS production technical field, be specifically related to a kind of one-step silane cross-linked 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 one-step silane cross-linked polyethylene overhead insulating material is subject to the welcome of cable manufacturer especially.In order to broadened application scope and increasing the service life, the electrical insulation capability of one-step silane cross-linked polyethylene overhead insulating material, mechanical property, especially ageing resistance still needs further raising, is applied to electric wire field better to make it.
Summary of the invention:
Technical problem to be solved by this invention is the one-step silane cross-linked 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 one-step silane cross-linked polyethylene overhead insulating material, be made up of the raw material of following mass fraction:
High density polyethylene(HDPE) 70-80 part, linear low density polyethylene 40-45 part, Low Density Polyethylene 20-25 part, nano-ceramic powder 15-18 part, soft kaolin 12-15 part, polyoxyethylene glycol 10-13 part, polyvinyl chloride 8-10 part, polyvinyl alcohol 5-8 part, silane coupling agent 5-8 part, polyethylene wax 3-5 part, black master batch 3-5 part, UV light absorber 2-3 part, fire retardant 2-3 part, oxidation inhibitor 1-2 part, copper powder 0.5-1 part, dicumyl peroxide 0.1-0.5 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 UV light absorber is ultraviolet absorbent UV-531.
Described fire retardant is selected from the one in aluminium hydroxide, magnesium hydroxide, zinc borate and ammonium polyphosphate.
Described oxidation inhibitor is made up of antioxidant 1010 and irgasfos 168, and both mass ratioes are 1:1.
A preparation technology for one-step silane cross-linked polyethylene overhead insulating material, comprises the following steps:
(1) first join in sand mill by soft kaolin, polyoxyethylene glycol and polyethylene wax, add black master batch, copper powder and polyvinyl alcohol again after sand milling 15-20min, sand milling is less than 10um to fineness, obtains mixed powder I;
(2) mixed powder I is joined in high-speed mixer, then add nano-ceramic powder, UV light absorber, fire retardant and polyvinyl chloride, under 500r/min, mix 10-15min, obtain mixed powder II;
(3) high density polyethylene(HDPE), linear low density polyethylene, Low Density Polyethylene, silane coupling agent, oxidation inhibitor, dicumyl peroxide and mixed powder II suck each raw material cabin by vacuum system after weightlessness weighs, first add high density polyethylene(HDPE) in production line ingress, linear low density polyethylene, Low Density Polyethylene, oxidation inhibitor and mixed powder II, then by liquid material pump, silane coupling agent and dicumyl peroxide are injected at production line second section machine barrel, fully mix under normal temperature, Vacuum discharge subsequently, Aluminum-plastic composite bag is finally adopted to carry out vacuum packaging.
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 hybrid reaction single stage method, 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) first join in sand mill by 12kg soft kaolin, 10kg polyoxyethylene glycol and 3kg polyethylene wax, add 3kg black master batch, 0.5kg copper powder and 5kg polyvinyl alcohol after sand milling 15min again, sand milling is less than 10um to fineness, obtains mixed powder I;
(2) mixed powder I is joined in high-speed mixer, then add 15kg nano-ceramic powder, 2kg ultraviolet absorbent UV-531,2kg zinc borate and 8kg polyvinyl chloride, under 500r/min, mix 10min, obtain mixed powder II;
(3) by 70kg high density polyethylene(HDPE), 40kg linear low density polyethylene, 20kg Low Density Polyethylene, 5kg vinyltrimethoxy silane, 0.5kg antioxidant 1010, 0.5kg irgasfos 168, 0.1kg dicumyl peroxide and mixed powder II suck each raw material cabin by vacuum system after weightlessness weighs, first add high density polyethylene(HDPE) in production line ingress, linear low density polyethylene, Low Density Polyethylene, oxidation inhibitor and mixed powder II, then by liquid material pump, vinyltrimethoxy silane and dicumyl peroxide are injected at production line second section machine barrel, fully mix under normal temperature, Vacuum discharge subsequently, Aluminum-plastic composite bag is finally adopted to carry out vacuum packaging.
Embodiment 2
(1) first join in sand mill by 14kg soft kaolin, 12kg polyoxyethylene glycol and 4kg polyethylene wax, add 4kg black master batch, 1kg copper powder and 7kg polyvinyl alcohol after sand milling 15min again, sand milling is less than 10um to fineness, obtains mixed powder I;
(2) mixed powder I is joined in high-speed mixer, then add 16kg nano-ceramic powder, 2.5kg ultraviolet absorbent UV-531,2.5kg zinc borate and 9kg polyvinyl chloride, under 500r/min, mix 10min, obtain mixed powder II;
(3) by 75kg high density polyethylene(HDPE), 42kg linear low density polyethylene, 22kg Low Density Polyethylene, 7kg vinyltrimethoxy silane, 1kg antioxidant 1010, 1kg irgasfos 168, 0.3kg dicumyl peroxide and mixed powder II suck each raw material cabin by vacuum system after weightlessness weighs, first add high density polyethylene(HDPE) in production line ingress, linear low density polyethylene, Low Density Polyethylene, oxidation inhibitor and mixed powder II, then by liquid material pump, vinyltrimethoxy silane and dicumyl peroxide are injected at production line second section machine barrel, fully mix under normal temperature, Vacuum discharge subsequently, Aluminum-plastic composite bag is finally adopted to carry out vacuum packaging.
Embodiment 3
(1) first join in sand mill by 15kg soft kaolin, 13kg polyoxyethylene glycol and 5kg polyethylene wax, add 5kg black master batch, 1kg copper powder and 8kg polyvinyl alcohol after sand milling 20min again, sand milling is less than 10um to fineness, obtains mixed powder I;
(2) mixed powder I is joined in high-speed mixer, then add 18kg nano-ceramic powder, 3kg ultraviolet absorbent UV-531,3kg zinc borate and 10kg polyvinyl chloride, under 500r/min, mix 15min, obtain mixed powder II;
(3) by 80kg high density polyethylene(HDPE), 45kg linear low density polyethylene, 25kg Low Density Polyethylene, 8kg vinyltrimethoxy silane, 1kg antioxidant 1010, 1kg irgasfos 168, 0.5kg dicumyl peroxide and mixed powder II suck each raw material cabin by vacuum system after weightlessness weighs, first add high density polyethylene(HDPE) in production line ingress, linear low density polyethylene, Low Density Polyethylene, oxidation inhibitor and mixed powder II, then by liquid material pump, vinyltrimethoxy silane and dicumyl peroxide are injected at production line second section machine barrel, fully mix under normal temperature, Vacuum discharge subsequently, Aluminum-plastic composite bag is finally adopted to carry out vacuum packaging.
Carry out mechanical and physical performance and electric property detection to one-step silane cross-linked polyethylene overhead insulating material prepared by embodiment 1-3, result is as shown in table 1.
The mechanical and physical performance of table 1 one-step silane cross-linked polyethylene overhead insulating material and electric property
As can be seen from Table 1, the one-step silane cross-linked 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 (7)
1. an one-step silane cross-linked polyethylene overhead insulating material, is characterized in that, is made up of the raw material of following mass fraction:
High density polyethylene(HDPE) 70-80 part, linear low density polyethylene 40-45 part, Low Density Polyethylene 20-25 part, nano-ceramic powder 15-18 part, soft kaolin 12-15 part, polyoxyethylene glycol 10-13 part, polyvinyl chloride 8-10 part, polyvinyl alcohol 5-8 part, silane coupling agent 5-8 part, polyethylene wax 3-5 part, black master batch 3-5 part, UV light absorber 2-3 part, fire retardant 2-3 part, oxidation inhibitor 1-2 part, copper powder 0.5-1 part, dicumyl peroxide 0.1-0.5 part.
2. one-step silane cross-linked 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. one-step silane cross-linked 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. one-step silane cross-linked polyethylene overhead insulating material according to claim 1, is characterized in that: described UV light absorber is ultraviolet absorbent UV-531.
5. one-step silane cross-linked 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.
6. one-step silane cross-linked polyethylene overhead insulating material according to claim 1, is characterized in that: described oxidation inhibitor is made up of antioxidant 1010 and irgasfos 168, both mass ratioes are 1:1.
7. a preparation technology for one-step silane cross-linked polyethylene overhead insulating material, is characterized in that, comprises the following steps:
(1) first join in sand mill by soft kaolin, polyoxyethylene glycol and polyethylene wax, add black master batch, copper powder and polyvinyl alcohol again after sand milling 15-20min, sand milling is less than 10um to fineness, obtains mixed powder I;
(2) mixed powder I is joined in high-speed mixer, then add nano-ceramic powder, UV light absorber, fire retardant and polyvinyl chloride, under 500r/min, mix 10-15min, obtain mixed powder II;
(3) high density polyethylene(HDPE), linear low density polyethylene, Low Density Polyethylene, silane coupling agent, oxidation inhibitor, dicumyl peroxide and mixed powder II suck each raw material cabin by vacuum system after weightlessness weighs, first add high density polyethylene(HDPE) in production line ingress, linear low density polyethylene, Low Density Polyethylene, oxidation inhibitor and mixed powder II, then by liquid material pump, silane coupling agent and dicumyl peroxide are injected at production line second section machine barrel, fully mix under normal temperature, Vacuum discharge subsequently, Aluminum-plastic composite bag is finally adopted to carry out vacuum packaging.
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| CN201510021382.0A CN104610635A (en) | 2015-01-15 | 2015-01-15 | Silane crosslinked-polyethylene aerial insulation material adopting one-step method and preparation technology of silane crosslinked-polyethylene aerial insulation material |
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| CN201510021382.0A CN104610635A (en) | 2015-01-15 | 2015-01-15 | Silane crosslinked-polyethylene aerial insulation material adopting one-step method and preparation technology of silane crosslinked-polyethylene aerial insulation material |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106279933A (en) * | 2016-09-26 | 2017-01-04 | 高团结 | A kind of 125 DEG C of LSOH anti-flaming cross-linked polyolefin Insulation Material preparation methoies |
| CN106432870A (en) * | 2016-09-26 | 2017-02-22 | 高团结 | Preparation method of thermoplastic halogen-free low-smoke flame-retardant polyolefin insulation cable material |
| CN106432871A (en) * | 2016-09-26 | 2017-02-22 | 高团结 | Preparation method of halogen-free low-smoke flame retardant crosslinked polyolefin insulation material for photovoltaic cable |
| CN106847546A (en) * | 2017-04-05 | 2017-06-13 | 苏州海凌达电子科技有限公司 | A kind of preparation method of porous vanadic anhydride super capacitor material |
| CN107383561A (en) * | 2017-09-04 | 2017-11-24 | 清远市恒晟塑料制粒有限公司 | A kind of plastics granulating process |
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| CN103923373A (en) * | 2014-04-30 | 2014-07-16 | 威远凤凰高新材料有限责任公司 | Ultraviolet irradiation-resistant organosilane crosslinked polyethylene gray overhead insulating material and preparation process thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106279933A (en) * | 2016-09-26 | 2017-01-04 | 高团结 | A kind of 125 DEG C of LSOH anti-flaming cross-linked polyolefin Insulation Material preparation methoies |
| CN106432870A (en) * | 2016-09-26 | 2017-02-22 | 高团结 | Preparation method of thermoplastic halogen-free low-smoke flame-retardant polyolefin insulation cable material |
| CN106432871A (en) * | 2016-09-26 | 2017-02-22 | 高团结 | Preparation method of halogen-free low-smoke flame retardant crosslinked polyolefin insulation material for photovoltaic cable |
| CN106847546A (en) * | 2017-04-05 | 2017-06-13 | 苏州海凌达电子科技有限公司 | A kind of preparation method of porous vanadic anhydride super capacitor material |
| CN107383561A (en) * | 2017-09-04 | 2017-11-24 | 清远市恒晟塑料制粒有限公司 | A kind of plastics granulating process |
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Application publication date: 20150513 |