CN105254992A - One-step silane natural crosslinking POE/LLDPE soft cable material and preparing method thereof - Google Patents

One-step silane natural crosslinking POE/LLDPE soft cable material and preparing method thereof Download PDF

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Publication number
CN105254992A
CN105254992A CN201510764451.7A CN201510764451A CN105254992A CN 105254992 A CN105254992 A CN 105254992A CN 201510764451 A CN201510764451 A CN 201510764451A CN 105254992 A CN105254992 A CN 105254992A
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lldpe
poe
natural
soft cable
low density
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刘玉飞
何敏
段龙江
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GUIZHOU KAIKETE MATERIAL CO Ltd
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GUIZHOU KAIKETE MATERIAL CO Ltd
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    • CCHEMISTRY; METALLURGY
    • 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
    • C08L23/08Copolymers of ethene
    • C08L23/0807Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C08L23/0815Copolymers of ethene with aliphatic 1-olefins
    • 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
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00Applications
    • C08L2203/20Applications use in electrical or conductive gadgets
    • C08L2203/202Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
    • 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
    • C08L2205/02Polymer 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
    • C08L2312/00Crosslinking
    • C08L2312/08Crosslinking by silane

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  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses a one-step silane natural crosslinking POE/LLDPE soft cable material. The material is characterized by being prepared from, 20-80 parts of linear low density polyethylene, 20-80 parts of POE, 1-5 parts of catalyst dibutyl tin dialurate compound, 1-3 parts of antioxygen 300, 0.4-2 parts of silane crosslinking agent vinyl trimethoxy silane, 0.01-0.04 part of initiator dicumyl peroxide, and 1-4 parts of water supply agent.

Description

Soft CABLE MATERIALS of the natural-crosslinked POE/LLDPE of one-step method silanes and preparation method thereof
Technical field
The present invention relates to soft CABLE MATERIALS and preparation method thereof field, particularly the preparation of the silane one step crosslinked polyethylene of the dynamo-electric soft CABLE MATERIALS used.
Background technology
The soft wire cable insulating material that current electromechanics uses is mostly polyvinyl chloride material, and it in use exists the problem such as thermotolerance and ageing resistance difference, and can hardening, embrittlement after life-time service.In addition, polyvinyl chloride contains chlorine element and not environmentally, is badly in need of a kind of new material and replaces.Along with the development of Science and Technology.Occur being occurred by crosslinked POE and the blended material of multiple flexible polyolefins.
Chinese patent application 2008100232701.9 discloses a kind of material of boiling-free silicane cross-linking polyolefin, although it is high to reach use temperature of reaching the standard grade, and hardness is comparatively hard, can not meet the requirement of dynamo-electric cable.Chinese patent application 201210488851.6 discloses a kind of silane natural-crosslinked polyolefine flexible material, but natural-crosslinked complete processing is complicated, needs, through repeatedly Screw Extrusion, easily pre-cross-linking phenomena to occur.
Summary of the invention
The technical problem to be solved in the present invention is: provide that a kind of technological operation is simple, environmental protection, the preparation of the soft CABLE MATERIALS of one-step method silanes crosslinked POE/LLDPE of low cost and processing method, to solve the deficiencies in the prior art.
Technical scheme of the present invention is: the soft CABLE MATERIALS of a kind of POE/LLDPE, its component is: linear low density polyethylene is 20-80 part, POE is 20-80 part, catalyzer dibutyl tin laurate compounds is 1-5 part, antioxidant 300 is 1-3 part, silane crosslinker vinyltrimethoxy silane is 0.4-2 part, and initiator dicumyl peroxide is 0.01-0.04 part, is 1-4 part for aqua.
Being that stearic acid and zeolite powder are composite for aqua is respectively 1-2 part and 0.2-2 part.
The preparation technology of the soft CABLE MATERIALS of the natural-crosslinked POE/LLDPE of one-step method silanes, comprise the following steps: A) Kaolinite Preparation of Catalyst master batch: by linear low density polyethylene, Low Density Polyethylene, oxidation inhibitor, catalyzer passes through Single screw extrusion, obtain catalyzer master batch, B) by linear low density polyethylene, Low Density Polyethylene, catalyzer master batch, jointly be placed in closed mixer for aqua, under the condition of heating, after vacuumizing drying, by silane crosslinker, the gasification of DCP initiator penetrates in polyethylene, control rotating speed and the time of closed mixer, discharging, vacuum packaging, obtain one-step silane cross-linked polyethylene cable material.
The rotary speed of closed mixer is 200-500r/min.
The Heating temperature of material is 40-60 DEG C.
The mixing time of material in closed mixer is 0.1-0.5h.
Beneficial effect of the present invention: utilize physical mixed method production technique at low temperatures by silane crosslinker, DCP initiator physics penetrate in POE and LLDPE, overcome in advance crosslinked problem; Processing condition are not harsh, and step is simple, and easy to implement, products obtained therefrom can be cross-linked under field conditions (factors), can save the operation of poach, and for cable manufacturer has saved cost, cost performance is high.Just graft reaction does not occur by silane water vapour penetration to polyethylene at low temperatures, graft reaction occurs in the extrusion of cable, and environmental protection is simple.
Embodiment
Example 1:
A) Kaolinite Preparation of Catalyst master batch, by linear low density polyethylene 20 parts, Low Density Polyethylene 80 parts, 2 parts, oxidation inhibitor, catalyzer 1 part by Single screw extrusion drying, obtains catalyzer master batch;
B) linear low density polyethylene 50 parts, POE50 part, catalyzer master batch 5 parts etc. are placed in closed mixer jointly, under the condition of 60 DEG C of heating after vacuum-drying, silane crosslinker 0.4 part, DCP initiator 0.04 part, stearic acid 1 part, zeolite powder 0.2 part etc. are added, material in closed mixer with the rotating speed rocking-turn of 200r/min, discharging, vacuum packaging, obtains the soft CABLE MATERIALS of the natural-crosslinked POE/LLDPE of one-step method silanes.
Example 2:
A) Kaolinite Preparation of Catalyst master batch, by linear low density polyethylene 50 parts, POE50 part, 2 parts, oxidation inhibitor, catalyzer 1 part by Single screw extrusion drying, obtains catalyzer master batch;
B) POE75 part, linear low density polyethylene 20 parts, catalyzer master batch 5 parts etc. are placed in closed mixer jointly, under the condition of 65 DEG C of heating after vacuum-drying, silane crosslinker 1.2 parts, DCP initiator 0.02 part, stearic acid 1.5 parts, zeolite powder 1 part etc. are added, material in closed mixer with the rotating speed rocking-turn of 350r/min, discharging, vacuum packaging, obtains the soft CABLE MATERIALS of the natural-crosslinked POE/LLDPE of one-step method silanes.
Example 3:
A) Kaolinite Preparation of Catalyst master batch, by POE80 part, linear low density polyethylene 20 parts, 2 parts, oxidation inhibitor, catalyzer 1 part by Single screw extrusion drying, obtains catalyzer master batch;
B) linear low density polyethylene 80 parts, Low Density Polyethylene 20 parts, catalyzer master batch 5 parts etc. are placed in closed mixer jointly, under the condition of 70 DEG C of heating after vacuum-drying, silane crosslinker 2 parts, DCP initiator 0.01 part, stearic acid 2 parts, zeolite powder 2 parts etc. are added, material in closed mixer with the rotating speed rocking-turn of 500r/min, discharging, vacuum packaging, obtains the soft CABLE MATERIALS of the natural-crosslinked POE/LLDPE of one-step method silanes.
The test of the natural-crosslinked POE/LLDPE of one-step method silanes soft CABLE MATERIALS performance: the silane single stage method crosslinked polyethylene material of above-mentioned example 1 to 3 of the present invention is extruded in single screw extrusion machine, each district temperature is unanimously set as 175 DEG C, pulling speed is adjusted to 300r/min, and engine speed is 400-600r/min.Lead material to roll and obtain the sheet material that thickness is 0.8-2.5mm, natural-crosslinked 3-7 days.The performance test results is as shown in the table:

Claims (6)

1. the soft CABLE MATERIALS of the natural-crosslinked POE/LLDPE of one-step method silanes, it is characterized in that: its component is: linear low density polyethylene is 20-80 part, POE is 20-80 part, catalyzer dibutyl tin laurate compounds is 1-5 part, antioxidant 300 is 1-3 part, silane crosslinker vinyltrimethoxy silane is 0.4-2 part, and initiator dicumyl peroxide is 0.01-0.04 part, is 1-4 part for aqua.
2. the soft CABLE MATERIALS of the natural-crosslinked POE/LLDPE of one-step method silanes according to claim 1, is characterized in that: being that stearic acid and zeolite powder are composite for aqua is respectively 1-2 part and 0.2-2 part.
3. the preparation technology of the soft CABLE MATERIALS of the natural-crosslinked POE/LLDPE of one-step method silanes as claimed in claim 1, it is characterized in that: comprise the following steps: A) Kaolinite Preparation of Catalyst master batch: by linear low density polyethylene, Low Density Polyethylene, oxidation inhibitor, catalyzer passes through Single screw extrusion, obtain catalyzer master batch, B) by linear low density polyethylene, Low Density Polyethylene, catalyzer master batch, jointly be placed in closed mixer for aqua, under the condition of heating, after vacuumizing drying, by silane crosslinker, the gasification of DCP initiator penetrates in polyethylene, control rotating speed and the time of closed mixer, discharging, vacuum packaging, obtain one-step silane cross-linked polyethylene cable material.
4. the preparation technology of the soft CABLE MATERIALS of the natural-crosslinked POE/LLDPE of one-step method silanes according to claim 3, is characterized in that: the rotary speed of closed mixer is 200-500r/min.
5. the preparation technology of the soft CABLE MATERIALS of the natural-crosslinked POE/LLDPE of one-step method silanes according to claim 3, is characterized in that: the Heating temperature of material is 40-60 DEG C.
6. the preparation technology of the soft CABLE MATERIALS of the natural-crosslinked POE/LLDPE of one-step method silanes according to claim 3, is characterized in that: the mixing time of material in closed mixer is 0.1-0.5h.
CN201510764451.7A 2015-11-11 2015-11-11 One-step silane natural crosslinking POE/LLDPE soft cable material and preparing method thereof Pending CN105254992A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106397931A (en) * 2016-10-11 2017-02-15 佛山市飞时达新材料科技有限公司 Low-noise polyethylene cable material and preparation method thereof
CN110804134A (en) * 2019-11-18 2020-02-18 江苏东方电缆材料有限公司 Halogen-free flame-retardant silane self-crosslinking cable material and preparation method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102936369A (en) * 2012-11-26 2013-02-20 江苏德威新材料股份有限公司 Silane self-crosslinked polyolefin flexible insulation cable material and preparation method thereof
CN103073781A (en) * 2013-01-22 2013-05-01 辽宁科瑞德电缆有限公司 Cross-linking low-smoke halogen-free and flame-retardant POE and preparation method thereof
CN104130492A (en) * 2014-07-25 2014-11-05 贵州凯科特材料有限公司 One-step silicane cross-linked polyethylene cable material and preparation method thereof
CN104231412A (en) * 2014-09-16 2014-12-24 安徽美腾特种电缆材料有限公司 Cold-resistant type one-step process silane crosslinked polyolefin cable material and preparation method thereof
CN104262883A (en) * 2014-10-13 2015-01-07 无锡杰科塑业有限公司 Low-smoke halogen-free flame-retardant silane crosslinked cable material capable of being crosslinked at room temperature and preparation method of cable material
CN104497409A (en) * 2014-12-23 2015-04-08 贵州凯科特材料有限公司 One-step method silane natural crosslinked polyethylene cable material and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102936369A (en) * 2012-11-26 2013-02-20 江苏德威新材料股份有限公司 Silane self-crosslinked polyolefin flexible insulation cable material and preparation method thereof
CN103073781A (en) * 2013-01-22 2013-05-01 辽宁科瑞德电缆有限公司 Cross-linking low-smoke halogen-free and flame-retardant POE and preparation method thereof
CN104130492A (en) * 2014-07-25 2014-11-05 贵州凯科特材料有限公司 One-step silicane cross-linked polyethylene cable material and preparation method thereof
CN104231412A (en) * 2014-09-16 2014-12-24 安徽美腾特种电缆材料有限公司 Cold-resistant type one-step process silane crosslinked polyolefin cable material and preparation method thereof
CN104262883A (en) * 2014-10-13 2015-01-07 无锡杰科塑业有限公司 Low-smoke halogen-free flame-retardant silane crosslinked cable material capable of being crosslinked at room temperature and preparation method of cable material
CN104497409A (en) * 2014-12-23 2015-04-08 贵州凯科特材料有限公司 One-step method silane natural crosslinked polyethylene cable material and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106397931A (en) * 2016-10-11 2017-02-15 佛山市飞时达新材料科技有限公司 Low-noise polyethylene cable material and preparation method thereof
CN110804134A (en) * 2019-11-18 2020-02-18 江苏东方电缆材料有限公司 Halogen-free flame-retardant silane self-crosslinking cable material and preparation method thereof

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