CN109627538A - 全介质自承式架空光缆用抗蠕变耐电痕护套料 - Google Patents

全介质自承式架空光缆用抗蠕变耐电痕护套料 Download PDF

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CN109627538A
CN109627538A CN201710928853.5A CN201710928853A CN109627538A CN 109627538 A CN109627538 A CN 109627538A CN 201710928853 A CN201710928853 A CN 201710928853A CN 109627538 A CN109627538 A CN 109627538A
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邹惠忠
丁子龙
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Abstract

本发明公开一种全介质自承式架空光缆用抗蠕变耐电痕护套料,所述抗蠕变耐电痕护套料由以下重量份的组分组成:高密度聚乙烯树脂50‑65份,低密度聚乙烯树脂10~20份,氧化锌3~5份,氢氧化镁14~20份,云母粉1~2份,纳米有机蒙脱土2~6份,海泡石4~6份,有机硅0.8~1.2份,DCP0.1~0.4份,炭黑母料5~8份,润滑剂1~3份,PPA母料0.5~1.2份,抗氧剂0.3~0.5份;所述炭黑母料为以低密度聚乙烯树脂LLDPE7042为基材料的炭黑含量为45%的母料5~8份。本发明抗蠕变耐电痕护套料能够解决感应电压大于12kV以上强电场中光缆表面的电蚀现象,以及大跨度工作条件下护层材料的抗蠕变性。

Description

全介质自承式架空光缆用抗蠕变耐电痕护套料
技术领域
本发明涉及一种抗蠕变耐电痕护套料,具体涉及一种高电场下的光缆用低形变耐电痕护套料。
背景技术
目前国内主要生产的光缆用护套料为普通的高密度聚乙烯护套料和中密度聚乙烯护套料,对光缆具有一定的保护作用。但在一些特殊环境中及特殊施工架设的光缆上,如全介质自承式架空光缆它则无法达到要求。全介质自承式光缆(简称ADSS光缆),是一种全部由介质材料组成、自身包含必要的支撑系统、可直接悬挂于电力杆塔上的非金属光缆,主要用于架空高压输电系统的通信路线,也可用于雷电多发地带、大跨度等架空敷设环境下的通信线路。这种户外高电场,大跨度条件下工作的光缆对光缆护套的耐电蚀性和抗蠕变性能有提出更为苛刻要求,而且对材料的耐气候性,机械性能,耐环境开裂性能,耐紫外线性能方面要求较为严苛。国内目前市场上用的光缆护套料无法满足其上述的耐电痕和抗蠕变等的高性能要求。因此,本发明是主要研制一种能克服上述技术问题的新复合材料。
发明内容:
本发明提供一种全介质自承式架空光缆用抗蠕变耐电痕护套料,此抗蠕变耐电痕护套料能够解决感应电压大于12kV以上强电场中光缆表面的电蚀现象,以及大跨度工作条件下护层材料的抗蠕变性。
为达到上述目的,本发明采用的技术方案是:一种全介质自承式架空光缆用抗蠕变耐电痕护套料,其特征在于:所述抗蠕变耐电痕护套料由以下重量份的组分组成:
高密度聚乙烯树脂 50-65份,
低密度聚乙烯树脂 10~20份,
氧化锌 3~5份,
氢氧化镁 14~20份,
云母粉 1~2份,
纳米有机蒙脱土 2~6份,
海泡石 4~6份,
有机硅 0.8~1.2份,
DCP 0.1~0.4份,
炭黑母料 5~8份,
润滑剂 1~3份,
PPA母料 0.5~1.2份,
抗氧剂 0.3~0.5份。
上述技术方案中的有关内容解释如下:
1. 上述方案中,所述高密度聚乙烯树脂和低密度聚乙烯树脂选自密度为0.950~0.968g/cm3的高密度聚乙烯和密度为0.915~0.936 g/cm3的低密度聚乙烯中的一种或几种混合物。
2. 上述方案中,所述炭黑母料为炭黑含量为45%的黑色母料。
3. 上述方案中,所述润滑剂为聚乙烯蜡。
4. 上述方案中,所述抗氧剂为1010和168及DLTP一种或几种混合物。
由于上述技术方案运用,本发明与现有技术相比具有下列优点:
本发明全介质自承式架空光缆用抗蠕变耐电痕护套料,其采用高密度聚乙烯树脂和低密度聚乙烯树脂为主要基材添加氧化锌、氢氧化镁、云母粉,使其具有良好的物理机械性能和电气绝缘性能,且提高材料的抗电痕性能,材料能够通过GB/T6553的1A4.5级的耐电痕试验;通过添加纳米有机蒙脱土2~6份、海泡石4~6份、有机硅0.8~1.2份、DCP(过氧化二异丙苯)的0.1~0.4份,改进材料抗蠕变性能,降低材料的耐热形变;再次,其并通添加以低密度聚乙烯树脂LLDPE7042为基材料的炭黑含量为45%的母料5~8份及润滑剂,使用材料具优异的耐候性能、耐环境应力开裂性能、耐磨、耐紫外线性能和优异的加工性能。采用此材料做成的全介质自承式架空光缆的能够适用于高压电场(220KV及以上)及恶劣环境下,大跨度施工的ADSS抗电痕光缆的使用要求,降低高压和雷电的表面蚀伤,延长光缆的使用寿命,降低高压布线光缆成本,促进ADSS光缆的应用得到更大的发展。
下面结合实施例对本发明作进一步描述:
实施例1~4:一种全介质自承式架空光缆用抗蠕变耐电痕护套料,所述抗蠕变耐电痕护套料由以下重量份的组分组成,如表1所示:
表1
原料名称 实施例1 实施例2 实施例3 实施例4
高密度聚乙烯树脂50-65份 60份 55份 65份 58份
低密度聚乙烯树脂10~20份 12份 15份 18份 20份
氧化锌3~5份 4份 3份 4份 5份
氢氧化镁14~20份 15份 20份 15份 18份
云母粉1~2份 1份 1.5份 1.8份 1.2份
纳米有机蒙脱土2~6份 6份 4份 5份 3份
海泡石4~6份 6份 4份 6份 5份
有机硅0.8~1.2份 1份 0.9份 1.1份 1份
DCP 0.1~0.4份 0.3份 0.2份 0.3份 0.2份
抗氧剂0.3~0.5份 0.4份 0.3份 0.5份 0.4份
润滑剂1~3份 1.2份 2份 2.5份 1.8份
PPA母料0.5~1.2份 0.9份 1.2份 0.6份 1份
炭黑母料5~8份 6份 7份 5份 6.5份
实施例1~4中的高密度聚乙烯树脂为泰国产HDPE7000F和齐鲁石化产HDPE6098,低密度聚乙烯树脂为兰州石化产DFDA7042和上海赛科LL0220AA及ExxonMobil MPE的混合物;
实施例海泡石为含水富镁硅酸盐黏土;
实施例1~4中的抗氧剂为1010(四[β-(3,5-二叔丁基-4-羟基苯基)丙酸]季戊四醇酯、168(三[2.4-二叔丁基苯基]亚磷酸酯) 、DLTP(硫代二丙酸双月桂酯) 的混合物;
实施例1~4中的炭黑母料为以低密度聚乙烯树脂LLDPE7042为基材料的炭黑含量为45%的母料5~8份;
本发明全介质自承式架空光缆用抗蠕变耐电痕护套料的制备过程分为两个环节:
第一环节:
步骤一、将低密度聚乙烯树脂10~20份和第一批高密度聚乙烯基料20~30份、纳米有机蒙脱土2~6份、海泡石4~6份、有机硅0.8~1.2份、DCP0.1~0.4份、氧化锌3~5份、氢氧化镁14~20份、云母粉1~2份、聚乙烯蜡1~3份、抗氧剂0.3~0.5份按一定比例投入混料机,低速混合4~6分钟下料;
步骤二、采用双螺杆挤出造粒,螺杆温度为165℃到220℃,螺杆转速280rpm;
步骤三、模面切料,水环冷却,过筛获得粒子;
第二环节:
步骤一、将第一环节生产所得的粒子,第二批高密度聚乙烯基料20~35份、炭黑母料5~8份、PPA母料0.5~1.2份按比例投入混料机,低速混合2分钟下料;
步骤二、采用双螺杆挤出造粒,螺杆温度为165℃到220℃, 螺杆转速320rpm;
步骤三、模面切粒,冷却,过筛,得到护套料。
将本发明实施例1~4所获得的抗蠕变耐电痕护套料进行测试,结果与普通耐电痕护套料相比所得数据如表2所示:
表2
综上,本发明的全介质自承式架空光缆用抗蠕变耐电痕护套料,其采用高密度聚乙烯树脂和低密度聚乙烯树脂为主要基材添加氧化锌、氢氧化镁、云母粉,使其具有良好的物理机械性能和电气绝缘性能,且提高材料的抗电痕性能,材料能够通过GB/T6553的1A4.5级的耐电痕试验;通过添加纳米有机蒙脱土2~6份、海泡石4~6份、有机硅0.8~1.2份、DCP(过氧化二异丙苯)的0.1~0.4份,改进材料抗蠕变性能,降低材料的耐热形变;再次,其并通添加以低密度聚乙烯树脂LLDPE7042为基材料的炭黑含量为45%的母料5~8份及润滑剂,使用材料具优异的耐候性能、耐环境应力开裂性能、耐磨、耐紫外线性能和优异的加工性能。采用此材料做成的全介质自承式架空光缆的能够适用于高压电场(220KV及以上)及恶劣环境下,大跨度施工的ADSS抗电痕光缆的使用要求,降低高压和雷电的表面蚀伤,延长光缆的使用寿命,降低高压布线光缆成本,促进ADSS光缆的应用得到更大的发展。
上述实施例只为说明本发明的技术构思及特点,其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施,并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰,都应涵盖在本发明的保护范围之内。

Claims (5)

1.一种全介质自承式架空光缆用抗蠕变耐电痕护套料,其特征在于:所述抗蠕变耐电痕护套料由以下重量份的组分组成:
高密度聚乙烯树脂 50-65份,
低密度聚乙烯树脂 10~20份,
氧化锌 3~5份,
氢氧化镁 14~20份,
云母粉 1~2份,
纳米有机蒙脱土 2~6份,
海泡石 4~6份,
有机硅 0.8~1.2份,
DCP 0.1~0.4份,
炭黑母料 5~8份,
润滑剂 1~3份,
PPA母料 0.5~1.2份,
抗氧剂 0.3~0.5份;
所述炭黑母料为以低密度聚乙烯树脂LLDPE7042为基材料的炭黑含量为45%的母料5~8份。
2. 根据权利要求1所述的抗蠕变耐电痕护套料,其特征在于:所述高密度聚乙烯树脂和低密度聚乙烯树脂选自密度为0.950~0.968g/cm3的高密度聚乙烯和密度为0.915~0.936g/cm3的低密度聚乙烯中的一种或几种混合物。
3.根据权利要求1所述的抗蠕变耐电痕护套料,其特征在于:所述炭黑母料为炭黑含量为45%的黑色母料。
4.根据权利要求1所述的抗蠕变耐电痕护套料,其特征在于:所述润滑剂为聚乙烯蜡。
5.根据权利要求1所述的抗蠕变耐电痕护套料,其特征在于:所述抗氧剂为1010和168及DLTP一种或几种混合物。
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WO2020247327A1 (en) * 2019-06-03 2020-12-10 Dow Global Technologies Llc Coated conductor
CN111019211A (zh) * 2019-11-26 2020-04-17 徐州聚西廷新型材料科技有限公司 一种改性高密度聚乙烯复合材料及其制备方法
CN112724491A (zh) * 2020-12-29 2021-04-30 无锡鸿仪新材料科技有限公司 一种抗电痕聚乙烯护套料及制备方法
CN116948299A (zh) * 2023-09-19 2023-10-27 河北尚华新材料股份有限公司 光电线缆用非交联型耐电痕聚烯烃护套料及其制备方法
CN116948299B (zh) * 2023-09-19 2023-12-08 河北尚华新材料股份有限公司 光电线缆用非交联型耐电痕聚烯烃护套料及其制备方法

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Application publication date: 20190416