CN103524843B - 一种控制信号电缆用护套料及其制备方法 - Google Patents

一种控制信号电缆用护套料及其制备方法 Download PDF

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CN103524843B
CN103524843B CN201310459974.1A CN201310459974A CN103524843B CN 103524843 B CN103524843 B CN 103524843B CN 201310459974 A CN201310459974 A CN 201310459974A CN 103524843 B CN103524843 B CN 103524843B
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何成龙
何源
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Chuzhou Modern Industry Investment And Development Co ltd
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Abstract

本发明公开了一种控制信号电缆用护套料及其制备方法，其由以下重量份的原料制成：低密度聚乙烯65-75、SG-3型聚氯乙烯20-30、丁苯橡胶15-25、HIPS？5-10、纳米碳酸钙10-15、纳米高岭土8-12、超细云母粉5-10、环烷油3-6、硫磺？2-3、促进剂M？1-2、氧化锌1-2、硬脂酸3-4、酚醛树脂4-8、防老剂1010？2-3、过氧化苯甲酸叔丁酯0.5-1、氧化聚乙烯蜡3-5、松香季戊四醇酯4-6、促进剂TMTD？1-2、邻苯二甲酸二异丁酯5-10、尼龙酸二辛酯8-12、复合填料3-6。本发明护套料耐高低温性好，拉伸强度高，还具有优良的耐磨性、耐酸碱性、耐油性、耐臭氧老化性、抗紫外线辐射性等性能，很大程度上延长了护套的使用寿命，拓宽了其应用范围。

Description

一种控制信号电缆用护套料及其制备方法
技术领域
本发明涉及一种电缆护套料及其制备方法，具体涉及一种控制信号电缆用护套料及其制备方法。
背景技术
电缆护套在防护内部元件受损以维持其正常运行方面起到至关重要的作用，因此护套材料必须能够抵抗日晒雨淋、紫外线辐射、臭氧老化、化学药品浸蚀以及承受高温、严寒等苛刻环境条件，同时在意外灾害下仍能保证正常工作。目前国内控制信号电缆护套通常采用聚氯乙烯或聚乙烯作为护套材料，然而上述材料在耐热性、耐寒性、耐气候老化等方面并不理想，从而大大影响了护套的使用寿命。
发明内容
本发明的目的在于针对现有技术的不足，提供一种耐候性好、拉伸强度高、韧性好、耐高低温性好的控制信号电缆用护套料及其制备方法，延长护套的使用寿命。
本发明采用的技术方案如下：
一种控制信号电缆用护套料，由以下重量份的原料制成：低密度聚乙烯65-75、SG-3型聚氯乙烯20-30、丁苯橡胶15-25、HIPS5-10、纳米碳酸钙10-15、纳米高岭土8-12、超细云母粉5-10、环烷油3-6、硫磺2-3、促进剂M1-2、氧化锌1-2、硬脂酸3-4、酚醛树脂4-8、防老剂10102-3、过氧化苯甲酸叔丁酯0.5-1、氧化聚乙烯蜡3-5、松香季戊四醇酯4-6、促进剂TMTD1-2、邻苯二甲酸二异丁酯5-10、尼龙酸二辛酯8-12、复合填料3-6；
所述复合填料的制备方法如下：a、按重量比4-6:3-5:2-3称取膨润土、重晶石、独居石，再加入膨润土重量2-3%的煤粉、1-2%的活性炭，混合均匀后540-560℃煅烧3-5h，冷却至常温后粉碎粒径至15μm以下，然后加水打浆制成浓度为40-50%的浆液，加入浓度为10-15%的盐酸溶液调节浆液PH至4.5-5.5，70-80℃水浴加热2-3h，再用浓度为10-15%的氢氧化钠溶液调节PH至中性，然后加入浆液重量2-3%的壬基酚聚氧乙烯醚、3-4%的十二烷基硫酸钠、2-3%的N,N-二(羟基乙基)椰油酰胺、1-2%的粉煤灰、2-3%的聚乙二醇和3-5%的硅酸钠，高速研磨浆料粒径至10μm以下，喷雾干燥成粉末；b、向上述制得的粉末中加入2-3%的玉石粉、1-2%的锆英粉、3-4%的聚丙烯酸钠、1-2%的壳聚糖和0.5-1%的四异丙基二(二辛基亚磷酸酰氧基)钛酸酯，高速剪切分散10-15min即可。
一种控制信号电缆用护套料的制备方法，包括以下步骤：将低密度聚乙烯、SG-3型聚氯乙烯、纳米碳酸钙、邻苯二甲酸二异丁酯、纳米高岭土、环烷油、松香季戊四醇酯加入高速捏合机中，80-90℃温度下捏合4-7min，再加入丁苯橡胶、HIPS、超细云母粉、酚醛树脂、氧化聚乙烯蜡、尼龙酸二辛酯、复合填料，继续捏合3-5min；然后降温至65-75℃，加入其余原料，捏合2-3min，出料；然后将混合料投入双螺杆挤出机进行挤出造粒，双螺杆挤出机的工作温度为150-165℃，最后经风冷、筛选磁选、计量、包装，即得所需的护套料。
本发明的有益效果：
本发明护套料耐高低温性好，使用温度可达到-45～105℃；拉伸强度大于20MPa，断裂伸长率大于350%，保证护套受外力作用而不变形、不破裂；还具有优良的耐磨性、耐酸碱性、耐油性、耐臭氧老化性、抗紫外线辐射性等性能，很大程度上延长了护套的使用寿命，拓宽了其应用范围。
具体实施方式
一种控制信号电缆用护套料，由以下重量（kg）的原料制成：低密度聚乙烯70、SG-3型聚氯乙烯20、丁苯橡胶20、HIPS7、纳米碳酸钙10、纳米高岭土10、超细云母粉8、环烷油5、硫磺2、促进剂M2、氧化锌2、硬脂酸3、酚醛树脂6、防老剂10102、过氧化苯甲酸叔丁酯0.8、氧化聚乙烯蜡4、松香季戊四醇酯5、促进剂TMTD1、邻苯二甲酸二异丁酯8、尼龙酸二辛酯10、复合填料5；
所述复合填料的制备方法如下：a、按重量比4:4:3称取膨润土、重晶石、独居石，再加入膨润土重量2%的煤粉、1.5%的活性炭，混合均匀后550℃煅烧4h，冷却至常温后粉碎粒径至15μm以下，然后加水打浆制成浓度为45%的浆液，加入浓度为12%的盐酸溶液调节浆液PH至5.0，75℃水浴加热2h，再用浓度为15%的氢氧化钠溶液调节PH至中性，然后加入浆液重量2%的壬基酚聚氧乙烯醚、3%的十二烷基硫酸钠、2%的N,N-二(羟基乙基)椰油酰胺、1.5%的粉煤灰、2%的聚乙二醇和4%的硅酸钠，高速研磨浆料粒径至10μm以下，喷雾干燥成粉末；b、向上述制得的粉末中加入2%的玉石粉、1.5%的锆英粉、3%的聚丙烯酸钠、1.5%的壳聚糖和0.6%的四异丙基二(二辛基亚磷酸酰氧基)钛酸酯，高速剪切分散12min即可。
一种控制信号电缆用护套料的制备方法，包括以下步骤：将低密度聚乙烯、SG-3型聚氯乙烯、纳米碳酸钙、邻苯二甲酸二异丁酯、纳米高岭土、环烷油、松香季戊四醇酯加入高速捏合机中，80-90℃温度下捏合5min，再加入丁苯橡胶、HIPS、超细云母粉、酚醛树脂、氧化聚乙烯蜡、尼龙酸二辛酯、复合填料，继续捏合3min；然后降温至65-75℃，加入其余原料，捏合2min，出料；然后将混合料投入双螺杆挤出机进行挤出造粒，双螺杆挤出机的工作温度为150-165℃，最后经风冷、筛选磁选、计量、包装，即得所需的护套料。
制得的护套料的性能测试结果如下：

Claims (2)

1.一种控制信号电缆用护套料，其特征在于，由以下重量份的原料制成：低密度聚乙烯65-75、SG-3型聚氯乙烯20-30、丁苯橡胶15-25、HIPS5-10、纳米碳酸钙10-15、纳米高岭土8-12、超细云母粉5-10、环烷油3-6、硫磺2-3、促进剂M1-2、氧化锌1-2、硬脂酸3-4、酚醛树脂4-8、防老剂10102-3、过氧化苯甲酸叔丁酯0.5-1、氧化聚乙烯蜡3-5、松香季戊四醇酯4-6、促进剂TMTD1-2、邻苯二甲酸二异丁酯5-10、尼龙酸二辛酯8-12、复合填料3-6；
所述复合填料的制备方法如下：
a、按重量比4-6:3-5:2-3称取膨润土、重晶石、独居石，再加入膨润土重量2-3%的煤粉、1-2%的活性炭，混合均匀后540-560℃煅烧3-5h，冷却至常温后粉碎粒径至15μm以下，然后加水打浆制成浓度为40-50%的浆液，加入浓度为10-15%的盐酸溶液调节浆液pH至4.5-5.5，70-80℃水浴加热2-3h，再用浓度为10-15%的氢氧化钠溶液调节pH至中性，然后加入浆液重量2-3%的壬基酚聚氧乙烯醚、3-4%的十二烷基硫酸钠、2-3%的N,N-二(羟基乙基)椰油酰胺、1-2%的粉煤灰、2-3%的聚乙二醇和3-5%的硅酸钠，高速研磨浆料粒径至10μm以下，喷雾干燥成粉末；
b、向上述制得的粉末中加入2-3%的玉石粉、1-2%的锆英粉、3-4%的聚丙烯酸钠、1-2%的壳聚糖和0.5-1%的四异丙基二(二辛基亚磷酸酰氧基)钛酸酯，高速剪切分散10-15min即可。
2.如权利要求1所述的控制信号电缆用护套料的制备方法，其特征在于包括以下步骤：将低密度聚乙烯、SG-3型聚氯乙烯、纳米碳酸钙、邻苯二甲酸二异丁酯、纳米高岭土、环烷油、松香季戊四醇酯加入高速捏合机中，80-90℃温度下捏合4-7min，再加入丁苯橡胶、HIPS、超细云母粉、酚醛树脂、氧化聚乙烯蜡、尼龙酸二辛酯、复合填料，继续捏合3-5min；然后降温至65-75℃，加入其余原料，捏合2-3min，出料；然后将混合料投入双螺杆挤出机进行挤出造粒，双螺杆挤出机的工作温度为150-165℃，最后经风冷、筛选磁选、计量、包装，即得所需的护套料。
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