CN105001528A - 一种大功率用低烟无卤电缆料及其制备方法 - Google Patents

一种大功率用低烟无卤电缆料及其制备方法 Download PDF

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CN105001528A
CN105001528A CN201510473641.3A CN201510473641A CN105001528A CN 105001528 A CN105001528 A CN 105001528A CN 201510473641 A CN201510473641 A CN 201510473641A CN 105001528 A CN105001528 A CN 105001528A
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张劲松
蒋林
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Anhui Telecom Equipment Trading Industry Co Ltd
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Abstract

本发明公开了一种大功率用低烟无卤电缆料，由下列重量份的原料制成：氯化石蜡2-4、碳酸钙6-8、线性低密度聚乙烯粉3-4、三聚氰胺氰脲酸盐2-4、硫磺2-3、促进剂M？1-2、硫代二丙酸十八酯3-5、硼酸2-3、癸二酸二异辛酯2-4、二甲基二巯基乙酸异辛酯锡1-3、三烯丙基异三聚氰酸酯2-4、低分子PE腊4-5、三元乙丙橡胶40-60、偏苯三酸酯2-5、填充剂8-12；本发明的电缆料具有优秀的机械性、耐热性和耐候性，添加的三烯丙基异三聚氰酸酯可显著缩短硫化时间，节省生产成本。

Description

一种大功率用低烟无卤电缆料及其制备方法
技术领域
    本发明涉及一种电缆料的技术领域，特别涉及一种大功率用低烟无卤电缆料及其制备方法。
背景技术
随着我国经济的发展以及通讯行业的飞速发展，大功率设备的使用量越来越多，这就对电缆的使用性能提出了更高的要求。电缆的耐受功率和内导体最高温度和环境温度之差成线性关系，而内导体的最高工作温度受制于电缆绝缘材料，电缆绝缘材料的长期工作温度就是内导体的最高允许工作温度，但目前市场上大部分的电缆料都不具有优秀的耐高温性能，无法满足现在大功率设备的需求。因此本发明人通过设计新的电缆料配方以及工艺，创造出适合于大功率使用的新型电缆料。
发明内容
本发明弥补了现有技术的不足，提供一种大功率用低烟无卤电缆料及其制备方法。
本发明的技术方案如下：
本发明电缆料由下列重量份的原料制成：氯化石蜡2-4、碳酸钙6-8、线性低密度聚乙烯粉3-4、三聚氰胺氰脲酸盐2-4、硫磺2-3、促进剂M 1-2、硫代二丙酸十八酯3-5、硼酸2-3、癸二酸二异辛酯2-4、二甲基二巯基乙酸异辛酯锡1-3、三烯丙基异三聚氰酸酯2-4、低分子PE腊4-5、三元乙丙橡胶40-60、偏苯三酸酯2-5、填充剂8-12；
所述填充剂由下列重量份的原料制成：四氟乙烯-六氟丙烯共聚物8-12、纳米陶瓷粉体2-4、铁尾矿渣粉2-3、凹凸棒土5-7、水滑石3-4、海藻酸钠2-4、三氧化二锑2-3、稻壳灰3-5、独居石4-5、聚苯基硫醚4-5、玻璃纤维3-5、粉煤灰6-8；其制备方法是将粉煤灰置于PH值为13.2-13.6的氢氧化钠水溶液中浸泡活化6-10小时，过滤后干燥，并与铁尾矿渣粉、水滑石、独居石混合，置于球磨机中进行机械磨细至50-80μm，再与四氟乙烯-六氟丙烯共聚物、纳米陶瓷粉体、海藻酸钠、三氧化二锑、稻壳灰、聚苯基硫醚、玻璃纤维混合置于高速搅拌机中以400-600转/分处理5-10分钟，备用，将凹凸棒土在600-800℃高温下煅烧4-5小时，待冷却后加少量水搅拌成浆液，再将浆液雾化喷涂在前面所得混合物表面，进行包覆处理，最后将包覆颗粒置于硫化床中造粒40-60分钟，出料即可。
所述电缆料的制备的具体步骤如下：
（1）将氯化石蜡、低分子PE腊、三元乙丙橡胶、碳酸钙、线性低密度聚乙烯粉、硫代二丙酸十八酯、癸二酸二异辛酯混合后投入高速混合机中以700-750转/分进行高速混合，并通过外部加热令混合物体系升温至90-120℃，以软化混合体系并增加其流动性；
（2）将步骤1所得混合体系与硼酸、二甲基二巯基乙酸异辛酯锡、三烯丙基异三聚氰酸酯、三聚氰胺氰脲酸盐、偏苯三酸酯、促进剂M混合并置于密炼机中在100-130℃下连续密炼8-12分钟；
（3）将步骤2所得密炼产物投入到开炼机中，再加入硫磺、填充剂以及剩余物料，在150-180℃下开炼至物料完全塑化均匀后出料；
（4）待步骤3所得物料冷却后切粒、筛选、包装后入库即可。
本发明的有益效果：
本发明的中心思想是发明一种适用于大功率的电缆料，同时具有优异的耐腐蚀耐老化等性能。
本发明的电缆料具有优秀的机械性、耐热性和耐候性，添加的三烯丙基异三聚氰酸酯可显著缩短硫化时间，节省生产成本。
填充剂的添加能大大增强电缆料的耐高温能力，添加的四氟乙烯-六氟丙烯共聚物体积电阻率很高，不受水和潮气的影响，耐热性强，聚苯基硫醚的添加增强了电缆料的耐磨、抗蠕变性能，通过填充剂的改良令电缆料在-70℃到240℃的温度范围中能连续使用。
具体实施方案
下面结合以下具体实施方式对本发明作进一步的详细描述：
称取下列重量份（kg）的原料制成：氯化石蜡3、碳酸钙7、线性低密度聚乙烯粉3、三聚氰胺氰脲酸盐3、硫磺2、促进剂M 1、硫代二丙酸十八酯4、硼酸2、癸二酸二异辛酯3、二甲基二巯基乙酸异辛酯锡2、三烯丙基异三聚氰酸酯3、低分子PE腊5、三元乙丙橡胶50、偏苯三酸酯4、填充剂10；
所述填充剂由下列重量份（kg）的原料制成：四氟乙烯-六氟丙烯共聚物10、纳米陶瓷粉体3、铁尾矿渣粉2、凹凸棒土6、水滑石3、海藻酸钠3、三氧化二锑2、稻壳灰4、独居石4、聚苯基硫醚4、玻璃纤维4、粉煤灰7；其制备方法是将粉煤灰置于PH值为13.4的氢氧化钠水溶液中浸泡活化8小时，过滤后干燥，并与铁尾矿渣粉、水滑石、独居石混合，置于球磨机中进行机械磨细至70μm，再与四氟乙烯-六氟丙烯共聚物、纳米陶瓷粉体、海藻酸钠、三氧化二锑、稻壳灰、聚苯基硫醚、玻璃纤维混合置于高速搅拌机中以500转/分处理8分钟，备用，将凹凸棒土在700℃高温下煅烧4小时，待冷却后加少量水搅拌成浆液，再将浆液雾化喷涂在前面所得混合物表面，进行包覆处理，最后将包覆颗粒置于硫化床中造粒50分钟，出料即可。
所述电缆料的制备的具体步骤如下：
（1）将氯化石蜡、低分子PE腊、三元乙丙橡胶、碳酸钙、线性低密度聚乙烯粉、硫代二丙酸十八酯、癸二酸二异辛酯混合后投入高速混合机中以720转/分进行高速混合，并通过外部加热令混合物体系升温至105℃，以软化混合体系并增加其流动性；
（2）将步骤1所得混合体系与硼酸、二甲基二巯基乙酸异辛酯锡、三烯丙基异三聚氰酸酯、三聚氰胺氰脲酸盐、偏苯三酸酯、促进剂M混合并置于密炼机中在115℃下连续密炼10分钟；
（3）将步骤2所得密炼产物投入到开炼机中，再加入硫磺、填充剂以及剩余物料，在165℃下开炼至物料完全塑化均匀后出料；
（4）待步骤3所得物料冷却后切粒、筛选、包装后入库即可。
经测试本发明的电缆料拉伸强度为16.2MPa，断裂伸长率为377%，氧指数为35%，在220℃×168h热空气老化后拉伸强度变化率小于7.5%，断裂伸长变化率小于6.2%，在20mol/L盐酸溶液中于24℃浸泡168h后断裂伸长率为324%，在20mol/L氢氧化钠溶液中于24℃浸泡168h后断裂伸长率为336%。

Claims (2)

1.一种大功率用低烟无卤电缆料，其特征在于，由下列重量份的原料制成：氯化石蜡2-4、碳酸钙6-8、线性低密度聚乙烯粉3-4、三聚氰胺氰脲酸盐2-4、硫磺2-3、促进剂M 1-2、硫代二丙酸十八酯3-5、硼酸2-3、癸二酸二异辛酯2-4、二甲基二巯基乙酸异辛酯锡1-3、三烯丙基异三聚氰酸酯2-4、低分子PE腊4-5、三元乙丙橡胶40-60、偏苯三酸酯2-5、填充剂8-12；
所述填充剂由下列重量份的原料制成：四氟乙烯-六氟丙烯共聚物8-12、纳米陶瓷粉体2-4、铁尾矿渣粉2-3、凹凸棒土5-7、水滑石3-4、海藻酸钠2-4、三氧化二锑2-3、稻壳灰3-5、独居石4-5、聚苯基硫醚4-5、玻璃纤维3-5、粉煤灰6-8；其制备方法是将粉煤灰置于PH值为13.2-13.6的氢氧化钠水溶液中浸泡活化6-10小时，过滤后干燥，并与铁尾矿渣粉、水滑石、独居石混合，置于球磨机中进行机械磨细至50-80μm，再与四氟乙烯-六氟丙烯共聚物、纳米陶瓷粉体、海藻酸钠、三氧化二锑、稻壳灰、聚苯基硫醚、玻璃纤维混合置于高速搅拌机中以400-600转/分处理5-10分钟，备用，将凹凸棒土在600-800℃高温下煅烧4-5小时，待冷却后加少量水搅拌成浆液，再将浆液雾化喷涂在前面所得混合物表面，进行包覆处理，最后将包覆颗粒置于硫化床中造粒40-60分钟，出料即可。
2.根据权利要求书1所述的大功率用低烟无卤电缆料，其特征在于，制备方法的具体步骤如下：
（1）将氯化石蜡、低分子PE腊、三元乙丙橡胶、碳酸钙、线性低密度聚乙烯粉、硫代二丙酸十八酯、癸二酸二异辛酯混合后投入高速混合机中以700-750转/分进行高速混合，并通过外部加热令混合物体系升温至90-120℃，以软化混合体系并增加其流动性；
（2）将步骤1所得混合体系与硼酸、二甲基二巯基乙酸异辛酯锡、三烯丙基异三聚氰酸酯、三聚氰胺氰脲酸盐、偏苯三酸酯、促进剂M混合并置于密炼机中在100-130℃下连续密炼8-12分钟；
（3）将步骤2所得密炼产物投入到开炼机中，再加入硫磺、填充剂以及剩余物料，在150-180℃下开炼至物料完全塑化均匀后出料；
（4）待步骤3所得物料冷却后切粒、筛选、包装后入库即可。
CN201510473641.3A 2015-08-05 2015-08-05 一种大功率用低烟无卤电缆料及其制备方法 Pending CN105001528A (zh)

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CN104559203A (zh) * 2015-01-23 2015-04-29 淮南文峰航天电缆有限公司 一种大功率用高稳定性电缆料及其制备方法

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Application publication date: 20151028