CN105001562A - 一种大功率用高阻燃电缆料及其制备方法 - Google Patents

一种大功率用高阻燃电缆料及其制备方法 Download PDF

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CN105001562A
CN105001562A CN201510473603.8A CN201510473603A CN105001562A CN 105001562 A CN105001562 A CN 105001562A CN 201510473603 A CN201510473603 A CN 201510473603A CN 105001562 A CN105001562 A CN 105001562A
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米标
余文辉
姜诚
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Abstract

本发明公开了一种大功率用高阻燃电缆料，由下列重量份的原料制成：碳酸钙3-5、乙烯-辛烯共聚物6-8、粉末丁腈橡胶25-35、乙烯-辛烯共聚物树脂20-30、氟橡胶30-40、聚乙二醇4-5、乙烯-丙烯酸乙酯共聚物3-5、高岭土2-4、N，N’-双[3-(3，5-二叔丁基-4-羟基苯基)丙酰]？肼2-3、过氧化二苯甲酰3-4、2-甲基丙烯酸甲酯1-3、聚全氟乙丙烯2-3、氧化锌1-2、过氧苯甲酸叔丁脂2-4、填充剂8-12；本发明的电缆料具有很好的加工性能，添加的聚全氟乙丙烯令产品具有优良的电气特性以及优良的阻燃性和耐高低温性。

Description

一种大功率用高阻燃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高阻燃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，提供一种大功率用高阻燃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：碳酸钙3-5、乙烯-辛烯共聚物6-8、粉末丁腈橡胶25-35、乙烯-辛烯共聚物树脂20-30、氟橡胶30-40、聚乙二醇4-5、乙烯-丙烯酸乙酯共聚物3-5、高岭土2-4、N，N’-双[3-(3，5-二叔丁基-4-羟基苯基)丙酰] 肼2-3、过氧化二苯甲酰3-4、2-甲基丙烯酸甲酯1-3、聚全氟乙丙烯2-3、氧化锌1-2、过氧苯甲酸叔丁脂2-4、填充剂8-12；
所述填充剂由下列重量份的原料制成：四丁基硫酸氢铵3-5、三油酸甘油酯6-10、壬基酚聚氧乙烯醚4-6、EVA聚合物8-12、异戊胶粉5-8、黄原胶2-3、甲基丙烯酸羟乙酯6-8、红磷2-3、二氧化硅微粉3-5、四甲基氢氧化铵8-10、氧化锆1-3、莫桑石1-2；其制备方法是将EVA聚合物和异戊胶粉投入高速混合机中，400-600转/分混合8-12分钟，所得物料备用；再将莫桑石置于1200-1400℃下煅烧3-5小时，冷却后粉碎成粉末，再与前面所得混合物料、四丁基硫酸氢铵、三油酸甘油酯、壬基酚聚氧乙烯醚、甲基丙烯酸羟乙酯、黄原胶、四甲基氢氧化铵混合后搅拌成浆，将所得浆液与红磷、二氧化硅微粉、氧化锆混合后置于硫化床中造粒20-40分钟即可。
所述电缆料的制备的具体步骤如下：
（1）将乙烯-辛烯共聚物、聚乙二醇、乙烯-丙烯酸乙酯共聚物、N，N’-双[3-(3，5-二叔丁基-4-羟基苯基)丙酰] 肼、过氧化二苯甲酰、2-甲基丙烯酸甲酯、聚全氟乙丙烯、过氧苯甲酸叔丁脂混合后通过三辊研磨机研磨，备用；
（2）将步骤1所得物料与碳酸钙、粉末丁腈橡胶、氟橡胶、高岭土、氧化锌、填充剂以及剩余物料加入到高速混合机中以650-850转/分混合5-8分钟；
（3）将步骤2所得物料投入双螺杆挤出机进行挤出造粒，挤出机的温度控制为加料段130-140℃，熔融段160-170℃，均化段210-220℃，机头170-180℃，模口180-190℃，螺杆转速为15-30转/分；
（4）将步骤3所得产品经筛选磁选后计量包装即可。
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很好的加工性能，添加的聚全氟乙丙烯令产品具有优良的电气特性以及优良的阻燃性和耐高低温性。
填充剂中采用多种耐高温材料，并通过EVA聚合物与异戊胶粉的混合增加了成品的耐磨耐油等性能。
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：碳酸钙4、乙烯-辛烯共聚物7、粉末丁腈橡胶30、乙烯-辛烯共聚物树脂25、氟橡胶35、聚乙二醇4、乙烯-丙烯酸乙酯共聚物4、高岭土3、N，N’-双[3-(3，5-二叔丁基-4-羟基苯基)丙酰] 肼2、过氧化二苯甲酰3、2-甲基丙烯酸甲酯2、聚全氟乙丙烯2、氧化锌2、过氧苯甲酸叔丁脂3、填充剂10；
所述填充剂由下列重量份（kg）的原料制成：四丁基硫酸氢铵4、三油酸甘油酯8、壬基酚聚氧乙烯醚5、EVA聚合物10、异戊胶粉7、黄原胶2、甲基丙烯酸羟乙酯7、红磷2、二氧化硅微粉4、四甲基氢氧化铵9、氧化锆2、莫桑石2；其制备方法是将EVA聚合物和异戊胶粉投入高速混合机中，500转/分混合10分钟，所得物料备用；再将莫桑石置于1300℃下煅烧4小时，冷却后粉碎成粉末，再与前面所得混合物料、四丁基硫酸氢铵、三油酸甘油酯、壬基酚聚氧乙烯醚、甲基丙烯酸羟乙酯、黄原胶、四甲基氢氧化铵混合后搅拌成浆，将所得浆液与红磷、二氧化硅微粉、氧化锆混合后置于硫化床中造粒30分钟即可。
所述电缆料的制备的具体步骤如下：
（1）将乙烯-辛烯共聚物、聚乙二醇、乙烯-丙烯酸乙酯共聚物、N，N’-双[3-(3，5-二叔丁基-4-羟基苯基)丙酰] 肼、过氧化二苯甲酰、2-甲基丙烯酸甲酯、聚全氟乙丙烯、过氧苯甲酸叔丁脂混合后通过三辊研磨机研磨，备用；
（2）将步骤1所得物料与碳酸钙、粉末丁腈橡胶、氟橡胶、高岭土、氧化锌、填充剂以及剩余物料加入到高速混合机中以750转/分混合6分钟；
（3）将步骤2所得物料投入双螺杆挤出机进行挤出造粒，挤出机的温度控制为加料段135℃，熔融段165℃，均化段215℃，机头175℃，模口185℃，螺杆转速为20转/分；
（4）将步骤3所得产品经筛选磁选后计量包装即可。
经测试本发明的电缆料拉伸强度为15.8MPa，断裂伸长率为367%，氧指数为30%，在220℃×168h热空气老化后拉伸强度变化率小于10.2%，断裂伸长变化率小于8.7%，在20mol/L盐酸溶液中于24℃浸泡168h后断裂伸长率为326%，在20mol/L氢氧化钠溶液中于24℃浸泡168h后断裂伸长率为342%。

Claims (2)

1.一种大功率用高阻燃电缆料，其特征在于，由下列重量份的原料制成：碳酸钙3-5、乙烯-辛烯共聚物6-8、粉末丁腈橡胶25-35、乙烯-辛烯共聚物树脂20-30、氟橡胶30-40、聚乙二醇4-5、乙烯-丙烯酸乙酯共聚物3-5、高岭土2-4、N，N’-双[3-(3，5-二叔丁基-4-羟基苯基)丙酰] 肼2-3、过氧化二苯甲酰3-4、2-甲基丙烯酸甲酯1-3、聚全氟乙丙烯2-3、氧化锌1-2、过氧苯甲酸叔丁脂2-4、填充剂8-12；
所述填充剂由下列重量份的原料制成：四丁基硫酸氢铵3-5、三油酸甘油酯6-10、壬基酚聚氧乙烯醚4-6、EVA聚合物8-12、异戊胶粉5-8、黄原胶2-3、甲基丙烯酸羟乙酯6-8、红磷2-3、二氧化硅微粉3-5、四甲基氢氧化铵8-10、氧化锆1-3、莫桑石1-2；其制备方法是将EVA聚合物和异戊胶粉投入高速混合机中，400-600转/分混合8-12分钟，所得物料备用；再将莫桑石置于1200-1400℃下煅烧3-5小时，冷却后粉碎成粉末，再与前面所得混合物料、四丁基硫酸氢铵、三油酸甘油酯、壬基酚聚氧乙烯醚、甲基丙烯酸羟乙酯、黄原胶、四甲基氢氧化铵混合后搅拌成浆，将所得浆液与红磷、二氧化硅微粉、氧化锆混合后置于硫化床中造粒20-40分钟即可。
2.根据权利要求书1所述的大功率用高阻燃电缆料，其特征在于，制备方法的具体步骤如下：
（1）将乙烯-辛烯共聚物、聚乙二醇、乙烯-丙烯酸乙酯共聚物、N，N’-双[3-(3，5-二叔丁基-4-羟基苯基)丙酰] 肼、过氧化二苯甲酰、2-甲基丙烯酸甲酯、聚全氟乙丙烯、过氧苯甲酸叔丁脂混合后通过三辊研磨机研磨，备用；
（2）将步骤1所得物料与碳酸钙、粉末丁腈橡胶、氟橡胶、高岭土、氧化锌、填充剂以及剩余物料加入到高速混合机中以650-850转/分混合5-8分钟；
（3）将步骤2所得物料投入双螺杆挤出机进行挤出造粒，挤出机的温度控制为加料段130-140℃，熔融段160-170℃，均化段210-220℃，机头170-180℃，模口180-190℃，螺杆转速为15-30转/分；
（4）将步骤3所得产品经筛选磁选后计量包装即可。
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CN105820542A (zh) * 2016-04-21 2016-08-03 苏州市双虎科技有限公司 一种耐高温电缆用半导电屏蔽材料
CN106750640A (zh) * 2016-11-10 2017-05-31 佛山慧创正元新材料科技有限公司 一种高耐磨的丁腈橡胶复合电缆料及其制备方法

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