CN109836659A - A kind of one-step silane cross-linked polyethylene cable material - Google Patents
A kind of one-step silane cross-linked polyethylene cable material Download PDFInfo
- Publication number
- CN109836659A CN109836659A CN201711225514.7A CN201711225514A CN109836659A CN 109836659 A CN109836659 A CN 109836659A CN 201711225514 A CN201711225514 A CN 201711225514A CN 109836659 A CN109836659 A CN 109836659A
- Authority
- CN
- China
- Prior art keywords
- parts
- crosslinking agent
- linked polyethylene
- cable material
- catalyst
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 21
- 239000004718 silane crosslinked polyethylene Substances 0.000 title claims abstract description 11
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 14
- 239000003112 inhibitor Substances 0.000 claims abstract description 12
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 12
- 239000003054 catalyst Substances 0.000 claims abstract description 11
- 238000002425 crystallisation Methods 0.000 claims abstract description 8
- 230000008025 crystallization Effects 0.000 claims abstract description 8
- WMFHUUKYIUOHRA-UHFFFAOYSA-N (3-phenoxyphenyl)methanamine;hydrochloride Chemical compound Cl.NCC1=CC=CC(OC=2C=CC=CC=2)=C1 WMFHUUKYIUOHRA-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229920001903 high density polyethylene Polymers 0.000 claims description 10
- 239000004700 high-density polyethylene Substances 0.000 claims description 10
- 229920001684 low density polyethylene Polymers 0.000 claims description 10
- 239000004702 low-density polyethylene Substances 0.000 claims description 10
- -1 polypropylene Polymers 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 239000004743 Polypropylene Substances 0.000 claims description 5
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 229910000077 silane Inorganic materials 0.000 claims description 5
- CMGXCZJLZPWTGL-UHFFFAOYSA-N 1-n,4-n-ditert-butylbenzene-1,4-diamine Chemical compound CC(C)(C)NC1=CC=C(NC(C)(C)C)C=C1 CMGXCZJLZPWTGL-UHFFFAOYSA-N 0.000 claims description 4
- 235000019441 ethanol Nutrition 0.000 claims description 4
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 4
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 238000004132 cross linking Methods 0.000 abstract description 3
- 238000001035 drying Methods 0.000 abstract description 2
- 229920002521 macromolecule Polymers 0.000 abstract description 2
- 239000004703 cross-linked polyethylene Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical class CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 150000001282 organosilanes Chemical class 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- YMIFCOGYMQTQBP-UHFFFAOYSA-L calcium;dichloride;hydrate Chemical class O.[Cl-].[Cl-].[Ca+2] YMIFCOGYMQTQBP-UHFFFAOYSA-L 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000012438 extruded product Nutrition 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses a kind of one-step silane cross-linked polyethylene cable materials, are composed of according to parts by weight 90~100 parts of base resins, 4~5 parts of crosslinking agents, 5~7 parts of catalyst and 3~5 parts of polymerization inhibitors.The present invention uses crystallization of calcium chloride hydrate by adding in crosslinking agent, on the one hand promotes cross-linking reaction, on the other hand, the drying of grafting process is kept using the water absorbing properties of hydrate using the crystallization water in hydrate, avoids that precrosslink occurs and generates gel piece.Meanwhile alleviating the long-chain coupling reaction in base resin by using polymerization inhibitor, it avoids generating macromolecular substances, to guarantee the mobile performance of material.
Description
Technical field
The present invention relates to a kind of one-step silane cross-linked polyethylene cable materials, belong to power cable insulation material technology neck
Domain.
Background technique
Currently, often there is asking for material fluidity reduction when preparing organosilane cross-linked poly-ethylene cable material using one-step method
Topic.Studies have shown that the reason of causing the above problem to occur is: on the one hand, the polyethylene macromolecular generated in graft reaction is certainly
By a part in base, because chain extension, branching or gel occur for coupling reaction；On the other hand, due to containing in polyethylene raw material
Moisture hydrolyzes silane, and one-step method grafting and moulding process carry out simultaneously, be also easy to produce precrosslink, make the flowing of material
Property further decrease, formed gel piece, influence production efficiency, and be unfavorable for subsequent forming production.
Summary of the invention
The purpose of the present invention is to provide a kind of one-step silane cross-linked polyethylene cable materials, prepare silicon to solve one-step method
The problem of material fluidity generated when glue cross-linked poly-ethylene cable material reduces.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of one-step silane cross-linked polyethylene cable material, which is characterized in that by base resin, crosslinking agent, catalyst and
Polymerization inhibitor is composed according to following parts by weight:
90~100 parts of base resin, 4~5 parts of crosslinking agent, 5~7 parts of catalyst, 3~5 parts of polymerization inhibitor；
The composition of the base resin are as follows: 40~70 parts of low density polyethylene (LDPE), 10~30 parts of high density polyethylene (HDPE), polypropylene
5~10 parts；
The composition of the crosslinking agent are as follows: 1~2 part of vinyltrimethoxysilane, 3~5 parts of ethyl alcohol；
The composition of the catalyst are as follows: 3~5 parts of dibutyl tin dilaurate ester, 1~3 part of crystallization of calcium chloride hydrate；
The composition of the polymerization inhibitor are as follows: 2~5 parts of di-t-butyl p-phenylenediamine, 1~2 part of silane.
Further, the base resin selects powder.
Further, the crosslinking agent is liquid.
It is carried out by using the different raw material of three kinds of low density polyethylene (LDPE), high density polyethylene (HDPE) and polypropylene molecular chain structures
It is blended, is conducive to improve the comprehensive performances such as Flow of Goods and Materials, fusion-grafting, hydrolytie polycondensation, cross-linking efficiency.
Crystallization of calcium chloride hydrate is used by adding in crosslinking agent, is on the one hand promoted using the crystallization water in hydrate
On the other hand cross-linking reaction keeps the drying of grafting process using the water absorbing properties of hydrate, avoid that precrosslink occurs and generates
Gel piece.
Alleviate the long-chain coupling reaction in base resin by using polymerization inhibitor, avoids generating macromolecular substances, to protect
The mobile performance of exhibit material.
The beneficial effects of the present invention are:
When preparing organosilane cross-linked poly-ethylene cable material using above-mentioned formula progress one-step method, extruder continuous production 15 days,
Apparent gel piece is had no in product.When molding granulation, properties of product and appearance meet the requirements.
Specific embodiment
Embodiment 1
A kind of one-step silane cross-linked polyethylene cable material, by 90 parts of base resins, 5 parts of crosslinking agents, 6 parts of catalyst and 5
Part polymerization inhibitor is composed according to parts by weight:
Wherein, the base resin includes 60 parts of low density polyethylene (LDPE)s, 25 parts of high density polyethylene (HDPE)s and 5 parts of polypropylene.
The crosslinking agent includes 1 part of vinyltrimethoxysilane and 4 parts of ethyl alcohol.
The catalyst includes 5 parts of dibutyl tin dilaurate esters and 1 part of crystallization of calcium chloride hydrate.
The polymerization inhibitor includes 4 parts of di-t-butyl p-phenylenediamine and 1 part of silane.
After above-mentioned material precise in mixing investment extruder, extruded product is completed to be crosslinked through pyrohydrolysis.
Embodiment 2
A kind of one-step silane cross-linked polyethylene cable material, by 100 parts of base resins, 5 parts of crosslinking agents, 5 parts of catalyst and 3
Part polymerization inhibitor is composed according to parts by weight:
The base resin includes 70 parts of low density polyethylene (LDPE)s, 20 parts of high density polyethylene (HDPE)s and 10 parts of polypropylene.
The crosslinking agent includes 2 parts of vinyltrimethoxysilanes and 3 parts of ethyl alcohol.
The catalyst includes 3 parts of dibutyl tin dilaurate esters and 2 parts of crystallization of calcium chloride hydrates.
The polymerization inhibitor includes 2 parts of di-t-butyl p-phenylenediamine and 1 part of silane.
Claims (3)
1. a kind of one-step silane cross-linked polyethylene cable material, which is characterized in that by base resin, crosslinking agent, catalyst and resistance
Poly- agent is composed according to following parts by weight:
90~100 parts of the base resin, 4~5 parts of crosslinking agent, 5~7 parts of catalyst, 3~5 parts of polymerization inhibitor；
The composition of the base resin are as follows: 40~70 parts of low density polyethylene (LDPE), 10~30 parts of high density polyethylene (HDPE), polypropylene 5~
10 parts；
The composition of the crosslinking agent are as follows: 1~2 part of vinyltrimethoxysilane, 3~5 parts of ethyl alcohol；
The composition of the catalyst are as follows: 3~5 parts of dibutyl tin dilaurate ester, 1~3 part of crystallization of calcium chloride hydrate；
The composition of the polymerization inhibitor are as follows: 2~5 parts of di-t-butyl p-phenylenediamine, 1~2 part of silane.
2. a kind of one-step silane cross-linked polyethylene cable material according to claim 1, which is characterized in that the basic tree
Rouge selects powder.
3. a kind of one-step silane cross-linked polyethylene cable material according to claim 1, which is characterized in that the crosslinking agent
For liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711225514.7A CN109836659A (en) | 2017-11-29 | 2017-11-29 | A kind of one-step silane cross-linked polyethylene cable material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711225514.7A CN109836659A (en) | 2017-11-29 | 2017-11-29 | A kind of one-step silane cross-linked polyethylene cable material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109836659A true CN109836659A (en) | 2019-06-04 |
Family
ID=66882083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711225514.7A Pending CN109836659A (en) | 2017-11-29 | 2017-11-29 | A kind of one-step silane cross-linked polyethylene cable material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109836659A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112646264A (en) * | 2020-12-22 | 2021-04-13 | 上海新上化高分子材料有限公司 | One-step silane crosslinked polyethylene insulating material capable of being exposed in air for long time and preparation method thereof |
| CN115895075A (en) * | 2021-08-20 | 2023-04-04 | 中国石油化工股份有限公司 | Rotational molding high-density polyethylene composition and preparation method and application thereof |
-
2017
- 2017-11-29 CN CN201711225514.7A patent/CN109836659A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112646264A (en) * | 2020-12-22 | 2021-04-13 | 上海新上化高分子材料有限公司 | One-step silane crosslinked polyethylene insulating material capable of being exposed in air for long time and preparation method thereof |
| CN115895075A (en) * | 2021-08-20 | 2023-04-04 | 中国石油化工股份有限公司 | Rotational molding high-density polyethylene composition and preparation method and application thereof |
| CN115895075B (en) * | 2021-08-20 | 2024-05-17 | 中国石油化工股份有限公司 | Rotational molding high-density polyethylene composition, and preparation method and application thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190604 |