CN114456461A - 满足成束a等级燃烧的阻燃聚乙烯电缆料 - Google Patents
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Abstract
本发明公开了一种满足成束A等级燃烧的阻燃聚乙烯电缆料，其特征在于：所述满足成束A等级燃烧的阻燃聚乙烯电缆料由以下重量份的组分组成：乙稀醋酸乙烯酯5~15份、高流动性高密度聚乙烯15~30份、高伸长率低密度聚乙烯20~50份、无机阻燃剂20~40份、硅酮1~3份、硬脂酸1~3份、环保型溴锑阻燃剂2~5份；所述乙稀醋酸乙烯酯的VA含量至少为18%，所述无机阻燃剂为氢氧化铝、氢氧化镁和包覆红磷中的至少一种。本发明在保证产品力学性能大大优于常规电缆护套料的情况下，同时能够满足耐110℃的高温压力，且可以满足成束A等级的燃烧。
Description
技术领域
本发明涉及电缆材料领域，尤其涉及一种阻燃聚乙烯电缆料。
背景技术
电线电缆行业作为电力行业的配套行业，在国民经济中占有极其重要的作用和地位。其中，建筑用布电线作为室内用绝缘线，对其环保和阻燃要求越来越高。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。其中无卤低烟阻燃聚乙烯电缆料的需求量越来越大，
现有以聚烯烃树脂为基料的电缆护套料，基础性能较差，密度较高。同时为了满足加工性能，所用基体树脂硬度较低，不能满足较高温度的高温压力。
发明内容
本发明目的在于提供一种满足成束A等级燃烧的阻燃聚乙烯电缆料，该满足成束A等级燃烧的阻燃聚乙烯电缆料在保证产品力学性能大大优于常规电缆护套料的情况下，同时能够满足耐110℃的高温压力，且可以满足成束A等级的燃烧。
为达到上述目的，本发明采用的第一技术方案是：一种满足成束A等级燃烧的阻燃聚乙烯电缆料，所述满足成束A等级燃烧的阻燃聚乙烯电缆料由以下重量份的组分组成：
乙稀醋酸乙烯酯 5~15份，
高流动性高密度聚乙烯 15~30份，
高伸长率低密度聚乙烯 20~50份，
无机阻燃剂 20~40份，
硅酮 1~3份，
硬脂酸 1~3份，
环保型溴锑阻燃剂 2~5份；
所述高流动性高密度聚乙烯的密度：0.948-0.955g/cm3，熔体流动速率：负载2.16kg，190℃条件下6~8g/10min；
所述高伸长率低密度聚乙烯的密度：0.915-0.925 g/cm3，断裂伸长率：800%~1200%。
上述技术方案中进一步改进的技术方案如下：
1. 上述方案中，所述乙稀醋酸乙烯酯的VA含量至少为18%。
2. 上述方案中，所述无机阻燃剂为氢氧化铝、氢氧化镁和包覆红磷中的至少一种。
3. 上述方案中，所述环保型溴锑阻燃剂为十溴二苯乙烷或溴化聚苯乙烯和三氧化二锑的混合物。
由于上述技术方案的运用，本发明与现有技术相比具有下列优点：
本发明满足成束A等级燃烧的阻燃聚乙烯电缆料，其在保证产品力学性能大大优于常规电缆护套料的情况下，同时能够满足耐110℃的高温压力，且可以满足成束A等级的燃烧。
具体实施方式
在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制；术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性；此外，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
下面结合实施例对本发明作进一步描述：
实施例1~4：一种满足成束A等级燃烧的阻燃聚乙烯电缆料，所述满足成束A等级燃烧的阻燃聚乙烯电缆料，由以下重量份的组分组成，如表1所示：
表1
所述高流动性高密度聚乙烯的密度：0.948-0.955g/cm3，熔体流动速率：负载2.16kg，190℃条件下6~8g/10min；
所述高伸长率低密度聚乙烯的密度：0.915-0.925 g/cm3，断裂伸长率：800%~1200%；
实施例1的乙稀醋酸乙烯酯的VA含量为20%，无机阻燃剂为氢氧化铝，所述环保型溴锑阻燃剂为十溴二苯乙烷和三氧化二锑按照重量份的2：1形成混合物。
实施例2的乙稀醋酸乙烯酯的VA含量为18%，无机阻燃剂为氢氧化镁，所述环保型溴锑阻燃剂为十溴二苯乙烷和三氧化二锑按照重量份的2：1形成混合物。
实施例3的乙稀醋酸乙烯酯的VA含量至少为20%，无机阻燃剂为氢氧化镁，所述环保型溴锑阻燃剂为溴化聚苯乙烯和三氧化二锑按照重量份的3：1形成混合物。
实施例4的乙稀醋酸乙烯酯的VA含量至少为18%，无机阻燃剂为氢氧化铝，所述环保型溴锑阻燃剂为溴化聚苯乙烯和三氧化二锑按照重量份的3：1形成混合物。
满足成束A等级燃烧的阻燃聚乙烯电缆料加工工艺：本产品采用双螺杆混合塑化，然后经单螺杆挤出造粒，风冷输送包装成品的生产流程。
上述实施例1~4的满足成束A等级燃烧的阻燃聚乙烯电缆料，性能如表2所示：
表2
如表2的评价结果所示，本实施例满足成束A等级燃烧的阻燃聚乙烯电缆料，其在保证产品力学性能大大优于常规电缆护套料的情况下，同时能够满足
耐110℃的高温压力，且可以满足成束A等级的燃烧。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。
Claims (4)
1.一种满足成束A等级燃烧的阻燃聚乙烯电缆料，其特征在于：所述满足成束A等级燃烧的阻燃聚乙烯电缆料由以下重量份的组分组成：
乙稀醋酸乙烯酯 5~15份，
高流动性高密度聚乙烯 15~30份，
高伸长率低密度聚乙烯 20~50份，
无机阻燃剂 20~40份，
硅酮 1~3份，
硬脂酸 1~3份，
环保型溴锑阻燃剂 2~5份；
所述高流动性高密度聚乙烯的密度：0.948-0.955g/cm3，熔体流动速率：负载2.16kg，190℃条件下6~8g/10min；
所述高伸长率低密度聚乙烯的密度：0.915-0.925 g/cm3，断裂伸长率：800%~1200%。
2.根据权利要求1所述的满足成束A等级燃烧的阻燃聚乙烯电缆料，其特征在于：所述乙稀醋酸乙烯酯的VA含量至少为18%。
3.根据权利要求1所述的满足成束A等级燃烧的阻燃聚乙烯电缆料，其特征在于：所述无机阻燃剂为氢氧化铝、氢氧化镁和包覆红磷中的至少一种。
4.根据权利要求1所述的满足成束A等级燃烧的阻燃聚乙烯电缆料，其特征在于：所述环保型溴锑阻燃剂为十溴二苯乙烷或溴化聚苯乙烯和三氧化二锑的混合物。
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