CN114456473A - 拉远光缆高阻燃低烟无卤外护套电缆料及其制备工艺 - Google Patents
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Abstract
本发明公开了一种拉远光缆高阻燃低烟无卤外护套电缆料及其制备工艺,所述拉远光缆高阻燃低烟无卤外护套电缆料由以下重量份的组分组成:EVA树脂20份、MLLDPE树脂3~5份、POE树脂5~10份、聚乙烯接枝料5~8份、氢氧化铝40~50份、二乙基次磷酸铝1~3份、氰尿酸三聚氰胺盐4~10份、蒙脱土阻燃剂0.5~2份、硅酮润滑剂0.5~1.2份、抗氧剂0.1~1份;所述EVA树脂的VA含量至少为26%,所述抗氧剂为二苯胺、二氢喹啉、二烷基二硫代磷酸锌、硫代磷酸铜盐中的至少一种。本发明在机械阻燃性能未下降的情况下,具有高阻燃性能,介电常数在42%以上,可有通过欧洲CPR燃烧标准。
Description
技术领域
本发明涉及电缆材料领域,尤其涉及一种高阻燃低烟无卤外护套电缆料。
背景技术
当前,国家支持民营企业经济发展的利好政策不断出台,全球新一轮科技革命大幕已经拉开,全球能源互联网加快发展,通信基建需求日益增长,随着5G通信全球建设步伐加快,5G时代即将到来,国内的运营商发展会逐步向国际市场接近,因此在基站建设方面,基站拉远光缆及室内无线覆盖拉远光缆产品会随着铁塔公司及华为公司的发展而需求量激增。而在国内行业中,基站拉远用光电一体缆产品,尤其是针对基站上塔应用的产品,是整个基站拉远光缆产品发展的重点区域。
发明内容
本发明目的在于提供一种拉远光缆高阻燃低烟无卤外护套电缆料,该拉远光缆高阻燃低烟无卤外护套电缆料可满足-40℃至105℃光缆使用环境需求,在机械阻燃性能未下降的情况下,具有高阻燃性能,普通低烟无卤电缆料氧指数一般在30%以上,而本产品介电常数在42%以上,可有通过欧洲CPR燃烧标准。
为达到上述目的,本发明采用的第一技术方案是:一种拉远光缆高阻燃低烟无卤外护套电缆料,所述拉远光缆高阻燃低烟无卤外护套电缆料由以下重量份的组分组成:
EVA树脂 20份,
MLLDPE树脂 3~5份,
POE树脂 5~10份,
聚乙烯接枝料 5~8份,
氢氧化铝 40~50份,
二乙基次磷酸铝 1~3份,
氰尿酸三聚氰胺盐 4~10份,
蒙脱土阻燃剂 0.5~2份,
硅酮润滑剂 0.5~1.2份,
抗氧剂 0.1~1份。
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EVA树脂的VA含量至少为26%。
2. 上述方案中,所述抗氧剂为二苯胺、二氢喹啉、二烷基二硫代磷酸锌、硫代磷酸铜盐中的至少一种。
为达到上述目的,本发明采用的第二技术方案是:一种用于上述的拉远光缆高阻燃低烟无卤外护套电缆料的制备工艺,包括以下步骤:
步骤一、将EVA树脂20份、MLLDPE树脂3~5份、POE树脂5~10份加入密炼机内,放入二乙基次磷酸铝1~3份、氰尿酸三聚氰胺盐4~10份、蒙脱土0.5~2份搅拌使树脂充分搅拌均匀;
步骤二、充分均匀后再加入聚乙烯接枝料5~8份、氢氧化铝40~50份、硅酮润滑剂0.5~1.2份、抗氧剂0.1~1份形成混合物料;
步骤三、将混合物料加入双螺杆挤塑机进一步混合挤塑成熟,送入单螺杆造粒机,采用模面热切工艺造粒制得塑料粒子成品。
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:
本发明拉远光缆高阻燃低烟无卤外护套电缆料及其制备工艺,其可满足-40℃至105℃光缆使用环境需求,在机械阻燃性能未下降的情况下,具有高阻燃性能,普通低烟无卤电缆料氧指数一般在30%以上,而本产品介电常数在42%以上,可有通过欧洲CPR燃烧标准。
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1~4:一种拉远光缆高阻燃低烟无卤外护套电缆料,所述拉远光缆高阻燃低烟无卤外护套电缆料由以下重量份的组分组成,如表1所示:
表1
上述EVA树脂的VA含量至少为26%。
实施例1的抗氧剂为二苯胺,实施例2的抗氧剂为二烷基二硫代磷酸锌,实施例3的抗氧剂为硫代磷酸铜盐,实施例4的抗氧剂为二氢喹啉。
一种用于上述的拉远光缆高阻燃低烟无卤外护套电缆料的制备工艺,包括以下步骤:
步骤一、将EVA树脂20份、MLLDPE树脂3~5份、POE树脂5~10份加入密炼机内,放入二乙基次磷酸铝1~3份、氰尿酸三聚氰胺盐4~10份、蒙脱土0.5~2份搅拌使树脂充分搅拌均匀;
步骤二、充分均匀后再加入聚乙烯接枝料5~8份、氢氧化铝40~50份、硅酮润滑剂0.5~1.2份、抗氧剂0.1~1份形成混合物料;
步骤三、将混合物料加入双螺杆挤塑机进一步混合挤塑成熟,送入单螺杆造粒机,采用模面热切工艺造粒制得塑料粒子成品。
拉远光缆高阻燃低烟无卤外护套电缆料挤制电缆时,用低烟无卤螺杆挤出即可获得良好的表面,推荐挤出机各区温度设定参考如下:
上述实施例1~4的拉远光缆高阻燃低烟无卤外护套电缆料,性能如表2所示:
表2
如表2的评价结果所示,本实施例拉远光缆高阻燃低烟无卤外护套电缆料可满足-40℃至105℃光缆使用环境需求,在机械阻燃性能未下降的情况下,具有高阻燃性能,普通低烟无卤电缆料氧指数一般在30%以上,而本产品介电常
数在42%以上,可有通过欧洲CPR燃烧标准。
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)
1.一种拉远光缆高阻燃低烟无卤外护套电缆料,其特征在于:所述拉远光缆高阻燃低烟无卤外护套电缆料由以下重量份的组分组成:
EVA树脂 20份,
MLLDPE树脂 3~5份,
POE树脂 5~10份,
聚乙烯接枝料 5~8份,
氢氧化铝 40~50份,
二乙基次磷酸铝 1~3份,
氰尿酸三聚氰胺盐 4~10份,
蒙脱土 0.5~2份,
硅酮润滑剂 0.5~1.2份,
抗氧剂 0.1~1份。
2.根据权利要求1所述的拉远光缆高阻燃低烟无卤外护套电缆料,其特征在于:所述EVA树脂的VA含量至少为26%。
3.根据权利要求1所述的拉远光缆高阻燃低烟无卤外护套电缆料,其特征在于:所述抗氧剂为二苯胺、二氢喹啉、二烷基二硫代磷酸锌、硫代磷酸铜盐中的至少一种。
4.一种用于根据权利要求1所述的拉远光缆高阻燃低烟无卤外护套电缆料的制备工艺,其特征在于:包括以下步骤:
步骤一、将EVA树脂20份、MLLDPE树脂3~5份、POE树脂5~10份加入密炼机内,放入二乙基次磷酸铝1~3份、氰尿酸三聚氰胺盐4~10份、蒙脱土0.5~2份搅拌使树脂充分搅拌均匀;
步骤二、充分均匀后再加入聚乙烯接枝料5~8份、氢氧化铝40~50份、硅酮润滑剂0.5~1.2份、抗氧剂0.1~1份形成混合物料;
步骤三、将混合物料加入双螺杆挤塑机进一步混合挤塑成熟,送入单螺杆造粒机,采用模面热切工艺造粒制得塑料粒子成品。
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CN103881229A (zh) * | 2014-03-19 | 2014-06-25 | 广东聚石化学股份有限公司 | 一种高阻燃无卤聚烯烃电缆料及其制备方法 |
CN106279956A (zh) * | 2016-08-18 | 2017-01-04 | 江苏上上电缆集团有限公司 | 一种膨胀型低烟无卤高阻燃隔氧层电缆料及其制备方法 |
CN106750850A (zh) * | 2016-11-24 | 2017-05-31 | 宝胜科技创新股份有限公司 | 一种高氧指数热塑性无卤低烟聚烯烃电缆料及其制备方法 |
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CN103881229A (zh) * | 2014-03-19 | 2014-06-25 | 广东聚石化学股份有限公司 | 一种高阻燃无卤聚烯烃电缆料及其制备方法 |
CN106279956A (zh) * | 2016-08-18 | 2017-01-04 | 江苏上上电缆集团有限公司 | 一种膨胀型低烟无卤高阻燃隔氧层电缆料及其制备方法 |
CN106750850A (zh) * | 2016-11-24 | 2017-05-31 | 宝胜科技创新股份有限公司 | 一种高氧指数热塑性无卤低烟聚烯烃电缆料及其制备方法 |
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