CN114242318A - 隔热复合电缆 - Google Patents
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Abstract
本发明公开了一种隔热复合电缆,包括若干导体和光单元,所述导体和光单元绞合在一起,所述导体外侧设有绝缘护套,所述光单元外侧设有光单元护套;光单元护套包括以下重量份的材料:乙烯‑醋酸乙烯酯共聚物72份、线性低密度聚乙烯16份、三元乙丙橡胶12份、乙烯基三乙氧基硅烷1份、硫代二丙酸双十二烷酯1.5份、硅酮母粒1.6份、氧化铅粉末3.5份、乙氧基化三羟甲基丙烷三丙烯酸酯4份、N,N,N',N'‑四[4‑(二丁氨基)苯基]‑1,4‑苯二胺六氟锑酸盐1.2份、二苯胍0.8份、十二烷基硫酸钠1份、分散剂0.6份。本发明隔热复合电缆能够隔绝外界高温,延长光单元的使用寿命。
Description
技术领域
本发明涉及一种复合电缆,尤其涉及一种隔热复合电缆。
背景技术
光纤复合低压电缆OPLC (Optical Fiber Composite Low-voltage Cable,OPLC)是一种将光单元复合在低压电力电缆内,既能进行电力信息的传输,又能进行光通信传输的复合缆,适用于低压配电网工程。OPLC作为智能电网建设中的重要线缆产品之一,其融合了电力和通信的功能,降低网络建设的成本,是目前性价比最高的“多网融合”产品之一。现有国标规定OPLC导体正常运行时最高温度不超过90摄氏度,但在短路时,导体短时(最长持续5s)温度可达到250度。位于导体一侧的光单元在高温条件下必然受损,影响信号传输。因此,如何提供一种在高温条件下,短时间内隔绝热量的光单元护套成为本领域技术人员努力的方向。
发明内容
本发明目的在于提供一种隔热复合电缆,该隔热复合电缆中的光单元护套能够隔绝外界高温,保护光单元内部的通讯材料,避免光单元的损坏,有效保证了信号的传输稳定性。
为达到上述目的,本发明采用的技术方案是:一种隔热复合电缆,包括若干导体和光单元,所述导体和光单元绞合在一起,所述导体和光单元外侧设有包带,所述包带中嵌有一根撕裂绳,所述包带外侧设有外护套,所述导体外侧设有绝缘护套,所述光单元外侧设有光单元护套;
所述光单元护套包括以下重量份的材料:乙烯-醋酸乙烯酯共聚物72份、线性低密度聚乙烯16份、三元乙丙橡胶12份、乙烯基三乙氧基硅烷1份、硫代二丙酸双十二烷酯1.5份、硅酮母粒1.6份、氧化铅粉末3.5份、乙氧基化三羟甲基丙烷三丙烯酸酯4份、N,N,N',N'-四[4-(二丁氨基)苯基]-1,4-苯二胺六氟锑酸盐1.2份、二苯胍0.8份、十二烷基硫酸钠1份、分散剂0.6份。
上述技术方案中进一步改进的技术方案如下:
1. 上述方案中,所述乙烯-醋酸乙烯酯共聚物的醋酸乙烯占乙烯-醋酸乙烯酯共聚物总重量的40%。
2. 上述方案中,所述三元乙丙橡胶是乙烯、丙烯和非共轭二烯烃的三元共聚物,其中乙烯、丙烯比为80:20。
由于上述技术方案的运用,本发明与现有技术相比具有下列优点:
1. 本发明隔热复合电缆,在乙烯-醋酸乙烯酯共聚物、线性低密度聚乙烯、三元乙丙橡胶、乙烯基三乙氧基硅烷、硫代二丙酸双十二烷酯、硅酮母粒、氧化铅粉末和乙氧基化三羟甲基丙烷三丙烯酸酯中进一步添加了N,N,N',N'-四[4-(二丁氨基)苯基]-1,4-苯二胺六氟锑酸盐,使护套的导热系数≤0.05W/(m.K),使该护套具有隔热性能,可以保护内部的光单元不受外界温度影响,延长光单元的使用寿命。
2. 本发明隔热复合电缆,其在配方进一步添加了十二烷基硫酸钠和二苯胍,改善护套的热收缩性,降低护套的热收缩率,使热收缩率≤1%,使护套在收到导体产生的热量时不会发生较大的形变,也起到了对内部光单元的保护作用。
具体实施方式
下面结合实施例对本发明作进一步描述:
实施例:一种隔热复合电缆,包括若干导体和光单元,所述导体和光单元绞合在一起,所述导体和光单元外侧设有包带,所述包带中嵌有一根撕裂绳,所述包带外侧设有外护套,所述导体外侧设有绝缘护套2,所述光单元外侧设有光单元护套;
上述实施例光单元护套由以下组分组成:乙烯-醋酸乙烯酯共聚物72份、线性低密度聚乙烯16份、三元乙丙橡胶12份、乙烯基三乙氧基硅烷1份、硫代二丙酸双十二烷酯1.5份、硅酮母粒1.6份、氧化铅粉末3.5份、乙氧基化三羟甲基丙烷三丙烯酸酯4份、N,N,N',N'-四[4-(二丁氨基)苯基]-1,4-苯二胺六氟锑酸盐1.2份、二苯胍0.8份、十二烷基硫酸钠1份、分散剂0.6份。
上述乙烯-醋酸乙烯酯共聚物的醋酸乙烯占乙烯-醋酸乙烯酯共聚物总重量的40%。
上述三元乙丙橡胶是乙烯、丙烯和非共轭二烯烃的三元共聚物,其中乙烯、丙烯比为80:20。
该隔热复合电缆通过以下步骤制得:
S1. 将乙烯-醋酸乙烯酯共聚物、线性低密度聚乙烯和三元乙丙橡胶加入到密炼机中,在60-80℃混炼5-10min,得到物料A;
S2. 将乙烯基三乙氧基硅烷、硫代二丙酸双十二烷酯,硅酮母粒、氧化铅粉末、乙氧基化三羟甲基丙烷三丙烯酸酯、N,N,N',N'-四[4-(二丁氨基)苯基]-1,4-苯二胺六氟锑酸盐、二苯胍、十二烷基硫酸钠、分散剂加入到密炼机,在70~90℃混炼1~5min,得到物料B;
S3. 将物料A、B进行混炼后卸料到开炼机;
S4. 将物料A、B于开炼机上打三角包3~4次,开炼机辊温控制在60℃,最后在压延机上出片,得到光单元护套料。
对比例1~2:一种护套,包括以下重量份的材料:
表1
制备方法为常用方法。
各实施例和对比例制备的薄膜性能检测数据如下:
表2
如表2所示,对比例1与实施例相比缺少组分N,N,N',N'-四[4-(二丁氨基)苯基]-1,4-苯二胺六氟锑酸盐,对比例1制得的护套的导热系数远大于实施例制得的光单元护套的导热系数,即对比例制得的护套的隔热性能差;
对比例2与实施例相比缺少组分十二烷基硫酸钠和二苯胍,对比例2制得的护套的热收缩率大于实施例制得的光单元护套的热收缩率,即对比例制得的护套热收缩性能差。
本发明各实施例中制备的光单元护套无论是热收缩率和导热系数均优于对比例的光单元护套,本发明制得的光单元护套用于光单元保护上,能够隔绝外界高温,保护光单元内部的通讯材料,避免光单元的损坏。
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 (3)
1.一种隔热复合电缆,其特征在于:包括若干导体和光单元,所述导体和光单元绞合在一起,所述导体和光单元外侧设有包带,所述包带中嵌有一根撕裂绳,所述包带外侧设有外护套,所述导体外侧设有绝缘护套,所述光单元外侧设有光单元护套;
所述光单元护套包括以下重量份的材料:乙烯-醋酸乙烯酯共聚物72份、线性低密度聚乙烯16份、三元乙丙橡胶12份、乙烯基三乙氧基硅烷1份、硫代二丙酸双十二烷酯1.5份、硅酮母粒1.6份、氧化铅粉末3.5份、乙氧基化三羟甲基丙烷三丙烯酸酯4份、N,N,N',N'-四[4-(二丁氨基)苯基]-1,4-苯二胺六氟锑酸盐1.2份、二苯胍0.8份、十二烷基硫酸钠1份、分散剂0.6份。
2.根据权利要求1所述的隔热复合电缆,其特征在于:所述乙烯-醋酸乙烯酯共聚物的醋酸乙烯占乙烯-醋酸乙烯酯共聚物总重量的40%。
3.根据权利要求1所述的隔热复合电缆,其特征在于:所述三元乙丙橡胶是乙烯、丙烯和非共轭二烯烃的三元共聚物,其中乙烯、丙烯比为80:20。
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KR102579967B1 (ko) * | 2015-06-16 | 2023-09-20 | 훈츠만 어드밴스트 머티리얼스 라이센싱 (스위처랜드) 게엠베하 | 에폭시 수지 조성물 |
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JP2017050189A (ja) * | 2015-09-02 | 2017-03-09 | 日立金属株式会社 | ノンハロゲン難燃性樹脂組成物を用いた絶縁電線及びケーブル |
CN106566060A (zh) * | 2016-09-29 | 2017-04-19 | 中广核三角洲(苏州)新材料研发有限公司 | 耐老化耐油核电用阻燃护套材料 |
CN106700561A (zh) * | 2016-11-21 | 2017-05-24 | 中广核三角洲(苏州)新材料研发有限公司 | 柔软耐磨耐油辐照交联机车电缆用无卤阻燃护套料 |
CN107845447B (zh) * | 2017-09-20 | 2021-01-01 | 江苏亨通电力电缆有限公司 | 低衰减扩容光电复合低压电缆 |
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- 2019-06-20 CN CN202111473616.7A patent/CN114276609B/zh active Active
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