CN108003443A - 一种盾构机用高压橡皮电缆绝缘半导电屏蔽料 - Google Patents
一种盾构机用高压橡皮电缆绝缘半导电屏蔽料 Download PDFInfo
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Abstract
本发明属于电缆技术领域,具体为一种盾构机用高压橡皮电缆绝缘半导电屏蔽料,由以下原料按照重量份数制备所得,EVM 100份、NBR 40~60份、氧化锌2~6份、氧化镁3~7份、MB 1~3份、RD 1~3份、导电炭黑20~40份、石墨烯10~15份、微晶蜡8~16份、DOS 10~20份、DCP 2~5份、TAIC 3~6份。本发明提供的一种盾构机用高压橡皮电缆绝缘半导电屏蔽料,体积电阻率低,20℃小于100Ω.m;90℃小于350Ω.m;加入石墨烯,炭黑用量较少,超光滑加工半导电界面,挤出性能好;热稳定性能更加优异,老化前后体积电阻率变化率不超过10%。加入NBR与EVM共混,提高的绝缘屏蔽的可剥离性能,与乙丙绝缘搭配使用时剥离力不小于10N,且不大于30N。
Description
技术领域
本发明属于电缆技术领域,具体为一种盾构机用高压橡皮电缆绝缘半导电屏蔽料。
背景技术
目前屏蔽料配方主要采用EVM和导电炭黑,该材料的缺点有:
a.体积电阻率高(20℃小于500Ω.m ),电缆的介质损耗角正切值偏大,实际上影响了电缆运行的载流量。降低半导电层电阻率有利于减少附加损耗,能有效改善热效应;
b.炭黑颗粒大,炭黑多厚,半导电层界面尖凸,表面粗糙,电树、水树局放特性下降。超光滑加工半导电界面;
C.剥离力偏大(难剥离,施工困难)或偏小(粘连力不够,影响电性能);
d.为能降低半导电材料的电阻率,加大导电炭黑的用量,但是超过一定量后,降低电阻率的效果并不好,反而会影响半导电料的机械强度和挤出工艺性能,表面容易毛糙。
发明内容
针对上述技术问题,本发明提供一种盾构机用高压橡皮电缆绝缘半导电屏蔽料,降低体积电阻率低,提高挤出性能好和热稳定性。
具体技术方案为:
一种盾构机用高压橡皮电缆绝缘半导电屏蔽料,由以下原料按照重量份数制备所得,EVM 100份、NBR 40~60份、氧化锌2~6份、氧化镁3~7份、MB 1~3份、RD 1~3份、导电炭黑20~40份、石墨烯10~15份、微晶蜡8~16份、DOS 10~20份、DCP 2~5份、TAIC 3~6份。
该盾构机用高压橡皮电缆绝缘半导电屏蔽料制备方法,包括以下过程:
(1)EVM与NBR加入密炼机,上顶栓压力0.55±0.1Mpa,表温120±5℃,混炼180±15s;
(2)加入氧化锌、氧化镁、MB、RD、微晶蜡、DOS,上顶栓压力0.55±0.1Mpa,表温105±5℃混炼90±10s;
(3)加入导电炭黑、石墨烯,上顶栓压力0.55±0.1Mpa,表温105±5℃,混炼240±15s;
(4)出胶、开炼机棍温65±5℃,包全辊,要求无破眼、有光泽,翻包机翻炼4~6次,开条;
(5)用20目、40目、60目滤网分别过滤,表温75±5℃,滤胶称重;
(6)密炼机加入硫化剂DCP、TAIC,上顶栓压力0.55±0.1Mpa,表温85±5℃,混炼60±10s;
(7)出胶、开炼机包全辊,要求无破眼,翻包机翻炼4~6次,要求有光泽;
(8)打卷到三棍机、上棍温度65±5℃、中棍温度75±5℃、下棍温度50±5℃,收片。
本发明提供的一种盾构机用高压橡皮电缆绝缘半导电屏蔽料,体积电阻率低,20℃小于100Ω.m;90℃小于350Ω.m;加入石墨烯,炭黑用量较少,超光滑加工半导电界面,挤出性能好;热稳定性能更加优异,老化前后体积电阻率变化率不超过10%。加入NBR与EVM共混,提高的绝缘屏蔽的可剥离性能,与乙丙绝缘搭配使用时剥离力不小于10N,且不大于30N。
具体实施方式
结合实施例说明本发明的具体实施方式。
实施例1
一种盾构机用高压橡皮电缆绝缘半导电屏蔽料,由以下原料按照重量份数制备所得,EVM 100份、NBR 43份、氧化锌5份、氧化镁6份、MB 3份、RD 2.5份、导电炭黑22份、石墨烯13份、微晶蜡9份、DOS 15份、DCP 4份、TAIC 3份。
该盾构机用高压橡皮电缆绝缘半导电屏蔽料制备方法,包括以下过程:
(1)EVM与NBR加入密炼机,上顶栓压力0.55±0.1Mpa,表温120±5℃,混炼180±15s;
(2)加入氧化锌、氧化镁、MB、RD、微晶蜡、DOS,上顶栓压力0.55±0.1Mpa,表温105±5℃混炼90±10s;
(3)加入导电炭黑、石墨烯,上顶栓压力0.55±0.1Mpa,表温105±5℃,混炼240±15s;
(4)出胶、开炼机棍温65±5℃,包全辊,要求无破眼、有光泽,翻包机翻炼4~6次,开条;
(5)用20目、40目、60目滤网分别过滤,表温75±5℃,滤胶称重;
(6)密炼机加入硫化剂DCP、TAIC,上顶栓压力0.55±0.1Mpa,表温85±5℃,混炼60±10s;
(7)出胶、开炼机包全辊,要求无破眼,翻包机翻炼4~6次,要求有光泽;
(8)打卷到三棍机、上棍温度65±5℃、中棍温度75±5℃、下棍温度50±5℃,收片。
实施例2
一种盾构机用高压橡皮电缆绝缘半导电屏蔽料,由以下原料按照重量份数制备所得,EVM 100份、NBR58份、氧化锌4份、氧化镁6份、MB 3份、RD 2份、导电炭黑22份、石墨烯12份、微晶蜡15份、DOS 17份、DCP 4份、TAIC 5份。
该盾构机用高压橡皮电缆绝缘半导电屏蔽料制备方法,包括以下过程:
(1)EVM与NBR加入密炼机,上顶栓压力0.55±0.1Mpa,表温120±5℃,混炼180±15s;
(2)加入氧化锌、氧化镁、MB、RD、微晶蜡、DOS,上顶栓压力0.55±0.1Mpa,表温105±5℃混炼90±10s;
(3)加入导电炭黑、石墨烯,上顶栓压力0.55±0.1Mpa,表温105±5℃,混炼240±15s;
(4)出胶、开炼机棍温65±5℃,包全辊,要求无破眼、有光泽,翻包机翻炼4~6次,开条;
(5)用20目、40目、60目滤网分别过滤,表温75±5℃,滤胶称重;
(6)密炼机加入硫化剂DCP、TAIC,上顶栓压力0.55±0.1Mpa,表温85±5℃,混炼60±10s;
(7)出胶、开炼机包全辊,要求无破眼,翻包机翻炼4~6次,要求有光泽;
(8)打卷到三棍机、上棍温度65±5℃、中棍温度75±5℃、下棍温度50±5℃,收片。
实施例3
一种盾构机用高压橡皮电缆绝缘半导电屏蔽料,由以下原料按照重量份数制备所得,EVM 100份、NBR 55份、氧化锌3份、氧化镁3份、MB 1份、RD 3份、导电炭黑35份、石墨烯13份、微晶蜡9份、DOS 16份、DCP 4份、TAIC 5份。
该盾构机用高压橡皮电缆绝缘半导电屏蔽料制备方法,包括以下过程:
(1)EVM与NBR加入密炼机,上顶栓压力0.55±0.1Mpa,表温120±5℃,混炼180±15s;
(2)加入氧化锌、氧化镁、MB、RD、微晶蜡、DOS,上顶栓压力0.55±0.1Mpa,表温105±5℃混炼90±10s;
(3)加入导电炭黑、石墨烯,上顶栓压力0.55±0.1Mpa,表温105±5℃,混炼240±15s;
(4)出胶、开炼机棍温65±5℃,包全辊,要求无破眼、有光泽,翻包机翻炼4~6次,开条;
(5)用20目、40目、60目滤网分别过滤,表温75±5℃,滤胶称重;
(6)密炼机加入硫化剂DCP、TAIC,上顶栓压力0.55±0.1Mpa,表温85±5℃,混炼60±10s;
(7)出胶、开炼机包全辊,要求无破眼,翻包机翻炼4~6次,要求有光泽;
(8)打卷到三棍机、上棍温度65±5℃、中棍温度75±5℃、下棍温度50±5℃,收片。
Claims (2)
1.一种盾构机用高压橡皮电缆绝缘半导电屏蔽料,其特征在于,由以下原料按照重量份数制备所得,EVM 100份、NBR 40~60份、氧化锌2~6份、氧化镁3~7份、MB 1~3份、RD 1~3份、导电炭黑20~40份、石墨烯10~15份、微晶蜡8~16份、DOS 10~20份、DCP 2~5份、TAIC 3~6份。
2.根据权利要求1所述的盾构机用高压橡皮电缆绝缘半导电屏蔽料,其特征在于,制备方法,包括以下过程:
(1)EVM与NBR加入密炼机,上顶栓压力0.55±0.1Mpa,表温120±5℃,混炼180±15s;
(2)加入氧化锌、氧化镁、MB、RD、微晶蜡、DOS,上顶栓压力0.55±0.1Mpa,表温105±5℃混炼90±10s;
(3)加入导电炭黑、石墨烯,上顶栓压力0.55±0.1Mpa,表温105±5℃,混炼240±15s;
(4)出胶、开炼机棍温65±5℃,包全辊,要求无破眼、有光泽,翻包机翻炼4~6次,开条;
(5)用20目、40目、60目滤网分别过滤,表温75±5℃,滤胶称重;
(6)密炼机加入硫化剂DCP、TAIC,上顶栓压力0.55±0.1Mpa,表温85±5℃,混炼60±10s;
(7)出胶、开炼机包全辊,要求无破眼,翻包机翻炼4~6次,要求有光泽;
(8)打卷到三棍机、上棍温度65±5℃、中棍温度75±5℃、下棍温度50±5℃,收片。
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CN106496752A (zh) * | 2015-09-08 | 2017-03-15 | 上海蓝昊电气江苏有限公司 | 低烟无卤耐油耐泥浆平台用热固性护套材料及加工工艺 |
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CN103122085A (zh) * | 2013-02-06 | 2013-05-29 | 上海驰程化工工贸有限公司 | 一种橡胶绝缘用可剥离半导电屏蔽橡皮及其制备方法 |
CN103724790A (zh) * | 2013-12-31 | 2014-04-16 | 金杯电工股份有限公司 | 适应四台共挤连硫机组用导体半导电屏蔽料 |
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CN110607023A (zh) * | 2019-10-30 | 2019-12-24 | 浙江远东电缆集团有限公司 | 电缆用绝缘屏蔽层橡皮材料及其制造方法 |
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