CN107556598A - Silane natural-crosslinked aerial insulating material of polyethylene of two step method and preparation method thereof - Google Patents
Silane natural-crosslinked aerial insulating material of polyethylene of two step method and preparation method thereof Download PDFInfo
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- CN107556598A CN107556598A CN201710822816.6A CN201710822816A CN107556598A CN 107556598 A CN107556598 A CN 107556598A CN 201710822816 A CN201710822816 A CN 201710822816A CN 107556598 A CN107556598 A CN 107556598A
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Abstract
The invention discloses silane natural-crosslinked aerial insulating material of polyethylene of two step method and preparation method thereof.The silane natural-crosslinked aerial insulating material of polyethylene of one of which two step method, raw material are formed by following parts by weight：85~95 parts of LLDPE, 50~60 parts of high density polyethylene (HDPE), 2~6 parts of polypropylene, 10~15 parts of aluminium hydroxide, 1~3 part of silane crosslinker, 0.5~2 part of organic additive, 1~2 part of rheological agent, 1~3 part of composite antioxidant, 0.3~1 part of catalyst, 1~3 part of copper resistant agent, 0.2~0.5 part of processing aid.Insulation Material produced by the invention effectively reduces the crosslinked with silicane time, reduces energy consumption for cable factory, reduces cost and effectively improve the purpose of production efficiency.
Description
Technical field
The invention belongs to cable material field, more particularly to a kind of silane natural-crosslinked aerial insulating material of polyethylene of two step method
And preparation method thereof.
Background technology
Crosslinked polyethylene has specific insulation height, dielectric loss is small, heat aging property is good, stress crack resistance performance
Good, easy processing, it is inexpensive the features such as, be a kind of very excellent insulating materials.Crosslinked polyethylene mainly has peroxide friendship at present
Three kinds of connection, crosslinking with radiation and crosslinked with silicane modes.Wherein organosilane crosslinked polyethylene is by being grafted or being copolymerized in polyethylene backbone
It is upper to introduce crosslinkable alkoxy silane and be made.It is small to insert number in warm water after extrusion molding for organosilane crosslinked polyethylene cable
When can complete solidification crosslinking.Because crosslinked with silicane does not need special cross-linking apparatus, technology controlling and process and fairly simple, Er Qie electricity
Gas excellent performance, therefore there is unrivaled advantage in mesolow electric wire field.Particularly two step method crosslinked with silicane gathers
Ethene Insulation Material, technique is simple, small investment, steady quality, is even more welcome by cable manufacturer.
Cable factory is when using organosilane crosslinked polyethylene insulation material production cable, generally use plsitive mold and crowded tubular type
Mould produces, because the advantages that tubular molding tool is more simple to operate than plsitive mold, production efficiency is high is as the production of vast cable
The first choice of producer, particularly when producing irregular cable, tubular molding tool is even more irreplaceable.But use tubular molding tool
When producing silanes cross-linked polyethylene insulated cable, stretching is bigger, and faster stretching accelerates the crystallization between polyethylene molecule, condition
And after Silane Grafted, the side chain on polyethylene molecular chain increases, intermolecular precrosslink increase, organosilane cross-linked poly-ethylene cable material
Melt flow rate (MFR) diminish, it is intermolecular to be mutually shifted difficulty, cause polyethylene macromolecular chain stretching when by the state of curling
It is changed into extended configuration.And simultaneously after organosilane cross-linked poly-ethylene cable stranding, it is to be crosslinked in boiling or nature, in polyethylene
Fusing point below, under the elastic recovery active force of crosslinked polyethylene, the relaxation shrinkage of crosslinked polyethylene is very big, is particularly producing
During the cable of small dimension, the relaxation shrinkage of crosslinked polyethylene is even more obvious, cause organosilane cross-linked poly-ethylene cable coupling part and
The conductor of end section produces so-called insulation shrinkage phenomenon, that is to say, that the heat of cross-linked polyethylene insulated cable to exposing outside
It is qualified that yield rate is not easy.It is exhausted being produced with organosilane cross-linked poly-ethylene cable Insulation Material in order to reach relatively low thermal contraction index
During edge cable, it is often necessary to strict restrained stretching than, using measures such as higher coolant water temperatures, low production efficiency, percent defective is high,
Power consumption is big.
The content of the invention
The invention provides silane natural-crosslinked aerial insulating material of polyethylene of a kind of two step method and preparation method thereof, to solve
Above-mentioned technical problem.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of silane natural-crosslinked aerial insulating material of polyethylene of two step method, is made up of by weight following raw material：It is linear low
85~95 parts of density polyethylene, 60~70 parts of high density polyethylene (HDPE), 2~6 parts of polypropylene, 1~3 part of silane crosslinker, there is machine aided
0.5~2 part of agent, 1~2 part of rheological agent, 1~3 part of composite antioxidant, 0.3~1 part of catalyst, 1~3 part of copper resistant agent, processing aid
0.2~0.5 part.
Preferably, the silane natural-crosslinked aerial insulating material of polyethylene of a kind of two step method, is made up of by weight following raw material：
85 parts of LLDPE, 50 parts of high density polyethylene (HDPE), 2 parts of polypropylene, 10 parts of aluminium hydroxide, 1 part of silane crosslinker, have
0.5 part of machine aided agent, 1 part of rheological agent, 1 part of composite antioxidant, 0.3 part of catalyst, 1 part of copper resistant agent, 0.2 part of processing aid.
Preferably, the silane natural-crosslinked aerial insulating material of polyethylene of a kind of two step method, is made up of by weight following raw material：
90 parts of LLDPE, 55 parts of high density polyethylene (HDPE), 4 parts of polypropylene, 13 parts of aluminium hydroxide, 2 parts of silane crosslinker, have
1 part of machine aided agent, 1.5 parts of rheological agent, 2 parts of composite antioxidant, 0.7 part of catalyst, 2 parts of copper resistant agent, 0.35 part of processing aid.
Preferably, the silane natural-crosslinked aerial insulating material of polyethylene of a kind of two step method, is made up of by weight following raw material：
95 parts of LLDPE, 60 parts of high density polyethylene (HDPE), 6 parts of polypropylene, 15 parts of aluminium hydroxide, 3 parts of silane crosslinker, have
2 parts of machine aided agent, 2 parts of rheological agent, 3 parts of composite antioxidant, 1 part of catalyst, 3 parts of copper resistant agent, 0.5 part of processing aid.
A kind of preparation method of the silane natural-crosslinked aerial insulating material of polyethylene of two step method, it is characterised in that including following
Step：
(1) each component in above-mentioned raw materials is taken by weight, and is uniformly mixed；
(2) raw material of gained in step (1) is handled by kneader kneading；
(3) the raw material input double screw extruder of gained in step (2) is subjected to extruding pelletization；
(4) by the granulation of gained in step (3) is water cooled, air-dried, screening magnetic separation, metering, packaging, produce two required steps
The silane natural-crosslinked aerial insulating material of polyethylene of method.
Beneficial effects of the present invention：
The present invention provides a kind of silane natural-crosslinked aerial insulating material of polyethylene of two step method and preparation method thereof, the two step method
Silane natural-crosslinked aerial insulating material of polyethylene effectively reduces the crosslinked with silicane time, reduces energy consumption for cable factory, reduces cost simultaneously
Effectively improve the purpose of production efficiency.
Embodiment
Embodiments of the invention are described in detail below, but what the present invention can be defined by the claims and cover
Multitude of different ways is implemented.
Embodiment 1
A kind of silane natural-crosslinked aerial insulating material of polyethylene of two step method, is made up of by weight following raw material：
85 parts of LLDPE, 50 parts of high density polyethylene (HDPE), 2 parts of polypropylene, 10 parts of aluminium hydroxide, crosslinked with silicane
1 part of agent, 0.5 part of organic additive, 1 part of rheological agent, 1 part of composite antioxidant, 0.3 part of catalyst, 1 part of copper resistant agent, processing aid 0.2
Part.
The preparation method of the silane natural-crosslinked aerial insulating material of polyethylene of two step method, comprises the following steps：
(1) each component in above-mentioned raw materials is taken by weight, and is uniformly mixed；
(2) raw material of gained in step (1) is handled by kneader kneading；
(3) the raw material input double screw extruder of gained in step (2) is subjected to extruding pelletization；
(4) by the granulation of gained in step (3) is water cooled, air-dried, screening magnetic separation, metering, packaging, produce two required steps
The silane natural-crosslinked aerial insulating material of polyethylene of method.
Following embodiment differs only in embodiment 1：
Embodiment 2
A kind of silane natural-crosslinked aerial insulating material of polyethylene of two step method, is made up of by weight following raw material：
90 parts of LLDPE, 55 parts of high density polyethylene (HDPE), 4 parts of polypropylene, 13 parts of aluminium hydroxide, crosslinked with silicane
2 parts of agent, 1 part of organic additive, 1.5 parts of rheological agent, 2 parts of composite antioxidant, 0.7 part of catalyst, 2 parts of copper resistant agent, processing aid
0.35 part.
Embodiment 3
A kind of silane natural-crosslinked aerial insulating material of polyethylene of two step method, is made up of by weight following raw material：
95 parts of LLDPE, 70 parts of high density polyethylene (HDPE), 6 parts of polypropylene, 3 parts of silane crosslinker, there is machine aided
2 parts of agent, 2 parts of rheological agent, 3 parts of composite antioxidant, 1 part of catalyst, 3 parts of copper resistant agent, 0.5 part of processing aid.
The embodiments of the present invention described above are not intended to limit the scope of the present invention, any in the present invention
Spirit and principle within the modifications, equivalent substitutions and improvements made etc., should be included in the claim protection model of the present invention
Within enclosing.
Claims (5)
1. a kind of silane natural-crosslinked aerial insulating material of polyethylene of two step method, it is characterised in that by following raw material group by weight
Into：85~95 parts of LLDPE, 50~60 parts of high density polyethylene (HDPE), 2~6 parts of polypropylene, aluminium hydroxide 10~15
Part, 1~3 part of silane crosslinker, 0.5~2 part of organic additive, 1~2 part of rheological agent, 1~3 part of composite antioxidant, catalyst 0.3
~1 part, 1~3 part of copper resistant agent, 0.2~0.5 part of processing aid.
2. the silane natural-crosslinked aerial insulating material of polyethylene of two step method according to claim 1, it is characterised in that by following
Raw material forms by weight：85 parts of LLDPE, 50 parts of high density polyethylene (HDPE), 2 parts of polypropylene, aluminium hydroxide 10
Part, 1 part of silane crosslinker, 0.5 part of organic additive, 1 part of rheological agent, 1 part of composite antioxidant, 0.3 part of catalyst, 1 part of copper resistant agent,
0.2 part of processing aid.
3. the silane natural-crosslinked aerial insulating material of polyethylene of two step method according to claim 1, it is characterised in that by following
Raw material forms by weight：90 parts of LLDPE, 55 parts of high density polyethylene (HDPE), 4 parts of polypropylene, aluminium hydroxide 13
Part, 2 parts of silane crosslinker, 1 part of organic additive, 1.5 parts of rheological agent, 2 parts of composite antioxidant, 0.7 part of catalyst, 2 parts of copper resistant agent,
0.35 part of processing aid.
4. the silane natural-crosslinked aerial insulating material of polyethylene of two step method according to claim 1, it is characterised in that by following
Raw material forms by weight：95 parts of LLDPE, 60 parts of high density polyethylene (HDPE), 6 parts of polypropylene, aluminium hydroxide 15
Part, 3 parts of silane crosslinker, 2 parts of organic additive, 2 parts of rheological agent, 3 parts of composite antioxidant, 1 part of catalyst, 3 parts of copper resistant agent, processing
0.5 part of auxiliary agent.
5. the preparation side of the silane natural-crosslinked aerial insulating material of polyethylene of two step method as described in claim 1-4 any one
Method, it is characterised in that comprise the following steps：
(1) each component in above-mentioned raw materials is taken by weight, and is uniformly mixed；
(2) raw material of gained in step (1) is handled by kneader kneading；
(3) the raw material input double screw extruder of gained in step (2) is subjected to extruding pelletization；
(4) by the granulation of gained in step (3) is water cooled, air-dried, screening magnetic separation, metering, packaging, produce required two step method silicon
The natural-crosslinked aerial insulating material of polyethylene of alkane.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710822816.6A CN107556598A (en) | 2017-09-13 | 2017-09-13 | Silane natural-crosslinked aerial insulating material of polyethylene of two step method and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710822816.6A CN107556598A (en) | 2017-09-13 | 2017-09-13 | Silane natural-crosslinked aerial insulating material of polyethylene of two step method and preparation method thereof |
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| CN107556598A true CN107556598A (en) | 2018-01-09 |
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| CN201710822816.6A Withdrawn CN107556598A (en) | 2017-09-13 | 2017-09-13 | Silane natural-crosslinked aerial insulating material of polyethylene of two step method and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108794873A (en) * | 2018-05-16 | 2018-11-13 | 安徽华美高分子材料科技有限公司 | A kind of polyethylene insulation track CABLE MATERIALS and preparation method thereof |
| WO2020088333A1 (en) * | 2018-10-30 | 2020-05-07 | 江苏德威新材料股份有限公司 | Silane-crosslinked polyethylene insulation material used for heating cable, preparation method therefor and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443211A (en) * | 2010-11-03 | 2012-05-09 | 如皋市中如化工有限公司 | Organosilane crosslinked polyethylene cable material and preparation process thereof |
| CN105968499A (en) * | 2016-06-12 | 2016-09-28 | 安徽滁州德威新材料有限公司 | High-speed extrusion two-step silane crosslinked polyethylene insulation material for small-size electric wire and preparation method of insulation material |
-
2017
- 2017-09-13 CN CN201710822816.6A patent/CN107556598A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443211A (en) * | 2010-11-03 | 2012-05-09 | 如皋市中如化工有限公司 | Organosilane crosslinked polyethylene cable material and preparation process thereof |
| CN105968499A (en) * | 2016-06-12 | 2016-09-28 | 安徽滁州德威新材料有限公司 | High-speed extrusion two-step silane crosslinked polyethylene insulation material for small-size electric wire and preparation method of insulation material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108794873A (en) * | 2018-05-16 | 2018-11-13 | 安徽华美高分子材料科技有限公司 | A kind of polyethylene insulation track CABLE MATERIALS and preparation method thereof |
| WO2020088333A1 (en) * | 2018-10-30 | 2020-05-07 | 江苏德威新材料股份有限公司 | Silane-crosslinked polyethylene insulation material used for heating cable, preparation method therefor and application thereof |
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Application publication date: 20180109 |
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