CN103965537A - 自交联复合聚乙烯电缆料的生产方法 - Google Patents

自交联复合聚乙烯电缆料的生产方法 Download PDF

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CN103965537A
CN103965537A CN201410188438.7A CN201410188438A CN103965537A CN 103965537 A CN103965537 A CN 103965537A CN 201410188438 A CN201410188438 A CN 201410188438A CN 103965537 A CN103965537 A CN 103965537A
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polyethylene
density polyethylene
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张维政
张豪
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Yangzhou Feng Ze Special Cable Material Co Ltd
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Yangzhou Feng Ze Special Cable 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
    • C08L23/06Polyethene
    • 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
    • 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
    • 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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  • Chemical & Material Sciences (AREA)
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  • Health & Medical Sciences (AREA)
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  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Organic Insulating Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

自交联复合聚乙烯电缆料的生产方法,涉及电缆料的生产技术领域。本发明将低密度聚乙烯、线型低密度聚乙烯和高密度聚乙烯的再生料、聚乙烯蜡、热稳定剂、耐寒剂、硅烷油、抗氧剂、接枝料和助剂混合混炼后造粒、烘干。本发明选用再生聚乙烯等边角料为基料,制成的产品拉伸强度可达≥15MPa,断裂伸长率≥500%,在负荷0.2MPa、15min、200℃的热延伸试验下,负荷下伸长率不大于100%,冷却后永久变行不大于5%,20℃时体积电阻率≥1×1014Ω·M,介电强度不小于25mv/m。形成的粒料可用生产10KV以下级电缆的绝缘层、护套层,可降低材料成本,提高市场竞争力。

Description

自交联复合聚乙烯电缆料的生产方法
技术领域
本发明涉及电缆生产技术领域,特别是电缆料的生产技术领域。
背景技术
随着社会的进步和人们生活水平的不断提高,对电力的需求量日益增加,这促进了电力电缆行业的发展。
可交联聚乙烯电缆料代替聚氯乙烯电缆料,解决了聚氯乙烯由于燃烧所造成的有毒气体排出的工业污染和耐老化性差的问题。同时聚乙烯交联后,也克服了自身一些如耐热温度低、收缩性大、容易发生应力开裂等弱点。硅烷交联具有成本低,性能优异等优点,是目前聚乙烯交联所采用的主要交联方式。聚乙烯再生料的应用在节约资源降低能耗方面将产生积极的社会效果,但再生聚乙烯中含有一些杂质,对硅烷交联产生不利的影响,很难使硅烷交联后的再生聚乙烯达到理想的品质。
发明内容
本发明目的是提出一种可自交联复合聚乙烯电缆料,替代现有的可交联聚乙烯电缆料,以克服以上现有技术缺陷。
本发明将低密度聚乙烯(LDPE)的再生料、线型低密度聚乙烯(LLDPE)的再生料、高密度聚乙烯(HDPE)的再生料、聚乙烯蜡、热稳定剂、耐寒剂、硅烷油、抗氧剂、接枝料和助剂混合混炼后造粒、烘干。
本发明选用再生聚乙烯等边角料为基料,制成的产品拉伸强度可达≥15MPa,断裂伸长率≥500%,在负荷0.2MPa、15min、200℃的热延伸试验下,负荷下伸长率不大于100%,冷却后永久变行不大于5%,20℃时体积电阻率≥1×1014 Ω·M,介电强度不小于25mv/m。形成的粒料可用生产10KV以下级电缆的绝缘层、护套层,可降低材料成本,提高市场竞争力。
本发明所述低密度聚乙烯(LDPE)的再生料、线型低密度聚乙烯(LLDPE)的再生料、高密度聚乙烯(HDPE)的再生料、聚乙烯蜡、热稳定剂、耐寒剂、硅烷油、抗氧剂、接枝料和助剂分别占总投料质量的70% 、15% 、5% 、2% 、0.5% 、1% 、5%、0.2% 、0.3%和1%。
虽然再生聚乙烯的分子链已造成破坏,但再生聚乙烯的最大好处是它已将各种要素已进行过综合,按照不同特性的聚乙烯的特性再进行比例搭配加上各种助剂进行调和将起到原生料难以达到的效果。
再生聚乙烯塑化温度通常清情况会比原生聚乙烯塑化温度低,温度设定过高会破坏或降低各种分子结构,降低耐老化原性。因此,本发明混炼的温度条件是160℃~190℃。
具体实施方式
一、配料:
分别称取低密度聚乙烯(LDPE)边角粒料70kg、线型低密度聚乙烯(LLDPE)边角粒料15kg、高密度聚乙烯(HDPE)边角粒料5kg、聚乙烯蜡2kg、热稳定剂0.5kg、耐寒剂1kg、硅烷油5kg、抗氧剂0.2kg、接枝料0.3kg和增亮剂等助剂1kg。
二、生产步骤:
将以上各料混合,然后在25--30℃条件下混炼均匀,然后通过160--190℃造粒机造粒,再烘干、称重包装。
1、拉伸强度:≥15MPa;
2、断裂伸长率:≥500%;
3、热延伸试验(负荷0.2MPa,15min,200℃):
(1)负荷下伸长率不大于100%;
(2)冷却后永久变行不大于5%。
4、空气烘箱垫老化试验后(135℃,168h):
(1)拉伸强度变化率:±20%;
(2)断裂伸长率变化率:±20%。
5、冲击脆化温度(-76℃)破裂数/试样数 不大于15/30。
6、20℃时体积电阻率:≥1×1014 Ω·M。
7、介电强度:不小于25mv/m。

Claims (3)

1.自交联复合聚乙烯电缆料的生产方法,其特征在于将低密度聚乙烯的再生料、线型低密度聚乙烯的再生料、高密度聚乙烯的再生料、聚乙烯蜡、热稳定剂、耐寒剂、硅烷油、抗氧剂、接枝料和助剂混合混炼后造粒、烘干。
2.根据权利要求1所述生产方法,其特征在于所述低密度聚乙烯的再生料、线型低密度聚乙烯的再生料、高密度聚乙烯的再生料、聚乙烯蜡、热稳定剂、耐寒剂、硅烷油、抗氧剂、接枝料和助剂分别占总投料质量的70% 、15% 、5% 、2% 、0.5% 、1% 、5%、0.2% 、0.3%和1%。
3.根据权利要求1所述生产方法,其特征在于所述混炼的温度条件是160℃~190℃。
CN201410188438.7A 2014-05-07 2014-05-07 自交联复合聚乙烯电缆料的生产方法 Pending CN103965537A (zh)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104829911A (zh) * 2015-04-21 2015-08-12 蚌埠天光传感器有限公司 一种高耐寒硅烷交联聚乙烯电缆料及其制作方法
CN104829907A (zh) * 2015-04-21 2015-08-12 蚌埠天光传感器有限公司 一种耐油硅烷交联聚乙烯电缆料及其制作方法
CN104829912A (zh) * 2015-04-21 2015-08-12 蚌埠天光传感器有限公司 一种低气味阻燃型硅烷交联聚乙烯电缆料及其制作方法
CN104829910A (zh) * 2015-04-21 2015-08-12 蚌埠天光传感器有限公司 一种具有吸声隔音功能的硅烷交联聚乙烯电缆料及其制作方法
CN104829909A (zh) * 2015-04-21 2015-08-12 蚌埠天光传感器有限公司 一种耐高温强度高的硅烷交联聚乙烯电缆料及其制作方法
CN104829908A (zh) * 2015-04-21 2015-08-12 蚌埠天光传感器有限公司 一种低烟耐弯曲硅烷交联聚乙烯电缆料及其制作方法
CN104829904A (zh) * 2015-04-21 2015-08-12 蚌埠天光传感器有限公司 一种环保硅烷交联聚乙烯电缆料及其制作方法
CN104829906A (zh) * 2015-04-21 2015-08-12 蚌埠天光传感器有限公司 一种抗老化耐高温的硅烷交联聚乙烯电缆料及其制作方法
CN104829905A (zh) * 2015-04-21 2015-08-12 蚌埠天光传感器有限公司 一种耐腐蚀硅烷交联聚乙烯电缆料及其制作方法
CN104844893A (zh) * 2015-04-21 2015-08-19 蚌埠天光传感器有限公司 一种耐磨硅烷交联聚乙烯电缆料及其制作方法
EP4057299A1 (en) 2021-03-09 2022-09-14 Prysmian S.p.A. Cable having a coating layer made of a recycled polymer material

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CN101942136A (zh) * 2010-09-15 2011-01-12 镇国广 节能环保耐环境开裂聚乙烯电缆料

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CN101942136A (zh) * 2010-09-15 2011-01-12 镇国广 节能环保耐环境开裂聚乙烯电缆料

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104829911A (zh) * 2015-04-21 2015-08-12 蚌埠天光传感器有限公司 一种高耐寒硅烷交联聚乙烯电缆料及其制作方法
CN104829907A (zh) * 2015-04-21 2015-08-12 蚌埠天光传感器有限公司 一种耐油硅烷交联聚乙烯电缆料及其制作方法
CN104829912A (zh) * 2015-04-21 2015-08-12 蚌埠天光传感器有限公司 一种低气味阻燃型硅烷交联聚乙烯电缆料及其制作方法
CN104829910A (zh) * 2015-04-21 2015-08-12 蚌埠天光传感器有限公司 一种具有吸声隔音功能的硅烷交联聚乙烯电缆料及其制作方法
CN104829909A (zh) * 2015-04-21 2015-08-12 蚌埠天光传感器有限公司 一种耐高温强度高的硅烷交联聚乙烯电缆料及其制作方法
CN104829908A (zh) * 2015-04-21 2015-08-12 蚌埠天光传感器有限公司 一种低烟耐弯曲硅烷交联聚乙烯电缆料及其制作方法
CN104829904A (zh) * 2015-04-21 2015-08-12 蚌埠天光传感器有限公司 一种环保硅烷交联聚乙烯电缆料及其制作方法
CN104829906A (zh) * 2015-04-21 2015-08-12 蚌埠天光传感器有限公司 一种抗老化耐高温的硅烷交联聚乙烯电缆料及其制作方法
CN104829905A (zh) * 2015-04-21 2015-08-12 蚌埠天光传感器有限公司 一种耐腐蚀硅烷交联聚乙烯电缆料及其制作方法
CN104844893A (zh) * 2015-04-21 2015-08-19 蚌埠天光传感器有限公司 一种耐磨硅烷交联聚乙烯电缆料及其制作方法
EP4057299A1 (en) 2021-03-09 2022-09-14 Prysmian S.p.A. Cable having a coating layer made of a recycled polymer material

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Application publication date: 20140806