CN103524847A - 一种硅烷交联聚乙烯电缆料及其制备方法 - Google Patents
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Abstract
本发明提供了一种硅烷交联聚乙烯电缆料，由下列重量份的组分原料制备而得：低密度聚乙烯80-90、高密度聚乙烯10-20、聚氯乙烯5-10、硅烷偶联剂KH5502-3、抗氧剂0.1-0.2、纳米二氧化钛0.1-0.5、二月桂酸二正辛基锡0.2-0.3、轻质碳酸钙15-20、滑石粉1-2、改性填料5-10、柏油0.2-0.5、次磷酸铝15-25，聚异丁烯1-2、聚四氟乙烯1-2。本发明配方生产出的电缆料经检测各项技术指标均达到国外同类技术水平。其加工性能和电缆表面质量良好。而且能够实现快速交联，提高生产效率，降低成本。
Description
技术领域
本发明涉及电缆料领域，具体涉及一种硅烷交联聚乙烯电缆料及其制备方法。
背景技术
电线电缆是工农业生产和现代生活中不可或缺的重要材料,我国是全世界最大的电线电缆生产国家,电线电缆行业在我国的国民经济中占有非常重要的地位,但是，目前，市场上的电缆料存在着不耐高温，不耐老化，老化试验后材料出现发黄变脆现象。电线老化而引发的火灾也越来越多，如何降低火灾的发生率及发生火灾的时的死亡率，低烟、无卤、阻燃、环保也成为电线电缆行业的发展方向。其中无卤低烟阻燃电缆料的需求量越来越大，目前无卤低烟阻燃电缆料的生产大多是在聚烯烃基材中加入大量的乙炔炭黑或乙炔炭黑来达到阻燃效果，然而，大量无机材料的加入，影响了电缆料的物理机械性能和加工。阻燃、低烟、环保、耐候性好、成本低的电缆料成为电缆料发展的方向。
发明内容
本发明提供了一种硅烷交联聚乙烯电缆料及其制备方法。由本发明的电缆料加工成的电缆线具有耐候性好、低烟、耐老化，阻燃性能好。
本发明采用的技术方案为：
一种硅烷交联聚乙烯电缆料,其特征在于,由下列重量份的组分原料制备而得：低密度聚乙烯80-90、高密度聚乙烯10-20、聚氯乙烯5-10、硅烷偶联剂KH5502-3、抗氧剂0.1-0.2、纳米二氧化钛0.1-0.5、二月桂酸二正辛基锡0.2-0.3、轻质碳酸钙15-20、滑石粉1-2、改性填料5-10、柏油0.2-0.5、次磷酸铝15-25，聚异丁烯1-2、聚四氟乙烯1-2。
所述的硅烷交联聚乙烯电缆料,其特征在于，由下列重量份的组分原料制备而得：低密度聚乙烯85、高密度聚乙烯15、聚氯乙烯8、硅烷偶联剂KH5502、抗氧剂0.1、纳米二氧化钛0.3、二月桂酸二正辛基锡0.2、轻质碳酸钙18、滑石粉1.5、改性填料8、柏油0.3、次磷酸铝18、聚异丁烯1、聚四氟乙烯1.5。
所述的硅烷交联聚乙烯电缆料,其特征在于，所述的改性填料是通过下列方法制备制备而得：
将硅藻土在500-550℃下煅烧3-4小时，取出后，加入3-4%的氢氧化钠溶液中研磨1-2小时，然后，加入12-15%的盐酸溶液，调节PH值为4-5，陈化10-15小时，再加氢氧化钠溶液调节研磨液pH为中性，过滤，烘干得到填料粉末，然后，向所得粉末中加入相当于粉末重量1-2%的樟脑精油、1-2%的纳米碳、2-3%次磷酸铝，共同研磨1-2小时后，再加入相当于粉末重量2-3%的3-氨丙基三甲氧基硅烷、4-5%聚乙二醇400、2-3%的吗啉，12000-15000转/分的高速分散均匀，即得。
硅烷交联聚乙烯电缆料成品的制备方法：
按配方比例称取各组分原料，将称取的组分原料，在高速混合机中搅拌均匀，再在145-200℃的温度区间下经密炼机密炼，双螺杆挤出，磨面热切造粒，旋风分离机送料，振动筛筛分然后包装，即成硅烷交联聚乙烯电缆料成品。
有益效果
本发明配方生产出的电缆料经检测各项技术指标均达到国外同类技术水平。其加工性能和电缆表面质量良好。而且能够实现快速交联，提高生产效率，降低成本。
具体实施方式
一种硅烷交联聚乙烯电缆料，由下列重量（kg）的组分原料制备而得：
低密度聚乙烯85、高密度聚乙烯15、聚氯乙烯8、硅烷偶联剂KH5502、抗氧剂0.1、纳米二氧化钛0.3、二月桂酸二正辛基锡0.2、轻质碳酸钙18、滑石粉1.5、改性填料8、柏油0.3、次磷酸铝18、聚异丁烯1、聚四氟乙烯1.5。
其中，改性填料是通过下列方法制备而得：
将硅藻土在540℃下煅烧3.5小时，取出后，加入3%的氢氧化钠溶液中研磨1.5小时，然后，加入13%的盐酸溶液，调节PH值为4-5，陈化12小时，再加氢氧化钠溶液调节研磨液pH为中性，过滤，烘干得到填料粉末，然后，向所得粉末中加入相当于粉末重量1%的樟脑精油、1%的纳米碳、2%次磷酸铝，共同研磨1.5小时后，再加入相当于粉末重量2%的3-氨丙基三甲氧基硅烷、4.5%聚乙二醇400、2%的吗啉，13000转/分的高速分散均匀，即得。
硅烷交联聚乙烯电缆料成品的制备方法：
按配方比例称取各组分原料，将称取的组分原料，在高速混合机中搅拌均匀，再在145-185℃的温度区间下经密炼机密炼，双螺杆挤出，磨面热切造粒，旋风分离机送料，振动筛筛分然后包装，即成硅烷交联聚乙烯电缆料成品。
本实施例制得的电缆料的性能测试结果如下表：
Claims (3)
1.一种硅烷交联聚乙烯电缆料,其特征在于, 由下列重量份的组分原料制备而得：低密度聚乙烯80-90、高密度聚乙烯10-20、聚氯乙烯5-10、硅烷偶联剂 KH550 2-3、抗氧剂0.1-0.2、纳米二氧化钛 0.1-0.5、二月桂酸二正辛基锡0.2-0.3、轻质碳酸钙15-20、滑石粉1-2、改性填料5-10、柏油0.2-0.5、次磷酸铝15-25， 聚异丁烯1-2、聚四氟乙烯1-2。
2.根据权利要求1所述的硅烷交联聚乙烯电缆料,其特征在于，由下列重量份的组分原料制备而得：低密度聚乙烯85、高密度聚乙烯15、聚氯乙烯8、硅烷偶联剂 KH550 2、抗氧剂0.1、纳米二氧化钛0.3、二月桂酸二正辛基锡0.2、轻质碳酸钙18、滑石粉1.5、改性填料8、柏油0.3、次磷酸铝18、聚异丁烯1、聚四氟乙烯1.5。
3.根据权利要求1或2所述的硅烷交联聚乙烯电缆料,其特征在于，所述的改性填料是通过下列方法制备制备而得：
将硅藻土在500-550℃下煅烧3-4小时，取出后，加入3-4%的氢氧化钠溶液中研磨1-2小时，然后，加入12-15%的盐酸溶液，调节PH值为4-5，陈化10-15小时，再加氢氧化钠溶液调节研磨液pH为中性，过滤，烘干得到填料粉末，然后，向所得粉末中加入相当于粉末重量1-2%的樟脑精油 、1-2%的纳米碳、2-3%次磷酸铝，共同研磨1-2小时后，再加入相当于粉末重量2-3%的3-氨丙基三甲氧基硅烷、4-5%聚乙二醇400、2-3%的吗啉，12000-15000转/分的高速分散均匀，即得。
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