CN111793262A - 一种防火epe珍珠保温管棉和包装管及其制备方法 - Google Patents
一种防火epe珍珠保温管棉和包装管及其制备方法 Download PDFInfo
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- CN111793262A CN111793262A CN202010562353.6A CN202010562353A CN111793262A CN 111793262 A CN111793262 A CN 111793262A CN 202010562353 A CN202010562353 A CN 202010562353A CN 111793262 A CN111793262 A CN 111793262A
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- fireproof
- epe
- epe pearl
- heat
- cotton
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Abstract
本发明提供了一种防火EPE珍珠保温管棉和包装管及其制备方法，本发明的珍珠保温管棉包括以下重量百分比的组分：50％～80％的低密度聚乙烯、5％～35％的氢氧化铝、2％～4％的三氧化二锑、3％～5％的抑烟剂、3％～5％的表面改性溶液、0.5％～3％的抗静电剂和2.5％～6％的助剂，所述表面改性溶液为乙烯基三甲氧基硅烷溶液。本发明的防火EPE珍珠保温管棉具有很好的阻燃效果，具有极低的导热系数，同时具有保温和防火性能。本发明的防火EPE珍珠包装管为双层结构设计，内层是具有阻燃效果的防火EPE珍珠保温管棉，外层是具有高阻燃效果的EPE覆膜，在碰撞和火灾的情况下，可以安全地保护铝塑复合管材，同时防火EPE珍珠包装管导热系数低，可以减少流体在输送中热量的损失，达到很好的保温效果。
Description
技术领域
本发明涉及包装管材领域，具体涉及一种防火EPE珍珠保温管棉和包装管及其制备方法。
背景技术
铝塑复合管常用作冷热给水管道、室内外燃气管道系及太阳能空调管道。其在输送流体发挥着日益重大的作用，相对其它管材，因其质轻、耐用而且施工方便，在日益发展中已相当成熟，有完善的产品标准和应用规范，市场上得到充分的认可。但是铝塑复合管在输送流体过程中，尤其是热水输送过程中，热量会逐渐损失，尤其是复杂的建筑结构里面，铝塑管在受到碰撞、建筑发生火灾时容易受到损坏，普通铝塑管在燃烧时也会带来浓烟，对于施救和扑灭明火带来极大的困难。因此对于铝塑复合管系统，低导热系数且具备低烟阻燃防火的铝塑复合管包装管材就显得极其重要了。市场上有聚苯乙烯发泡和聚氨酯发泡制备的包装管材，但是在建筑内部使用时，如遇火灾燃烧会产生有毒气体和浓烟，严重危害着健康和生命安全。
发明内容
本发明的目的在于克服现有技术存在的不足之处而提供一种防火EPE珍珠保温管棉和包装管及其制备方法，用于铝塑复合管的包装管用来保温和防火。
为实现上述目的，本发明采取的技术方案为：一种防火EPE珍珠保温管棉，所述EPE珍珠保温管棉包括以下重量百分比的组分：50％～80％的低密度聚乙烯、5％～35％的氢氧化铝、2％～4％的三氧化二锑、3％～5％的抑烟剂、3％～5％的表面改性溶液、0.5％～3％的抗静电剂和2.5％～6％的助剂，所述表面改性溶液为乙烯基三甲氧基硅烷溶液。
上述的防火EPE珍珠保温管棉结合低密度聚乙烯、氢氧化铝、三氧化二锑、抑烟剂、表面改性溶液、抗静电剂和助剂使得防火EPE珍珠保温管棉具有很好的阻燃效果，具有极低的导热系数，同时具有保温和防火性能，而且低密度聚乙烯、氢氧化铝、三氧化二锑、抑烟剂、表面改性溶液、抗静电剂和助剂协同配合增强了防火EPE珍珠保温管棉的保温和防火性能，缺少任一组分都会导致保温和防火性能急剧下降，而且上述的防火EPE珍珠保温管棉中各组分的含量也对防火EPE珍珠保温管棉的保温和防火性能有重要的影响，发明人通过研究，找到了保温和防火性能最优的组分的重量范围，而且发明人还发现防火EPE珍珠保温管棉中低密度聚乙烯、氢氧化铝、三氧化二锑、抑烟剂、表面改性溶液、抗静电剂和助剂中的任一组分偏离上述的防火EPE珍珠保温管棉的组分的重量范围都会导致防火EPE珍珠保温管棉保温和防火性能显著降低。
优选地，所述乙烯基三甲氧基硅烷溶液的溶剂为乙醇，所述乙烯基三甲氧基硅烷溶液中乙烯基三甲氧基硅烷的质量分数为85％～90％。
发明人通过研究发现，乙烯基三甲氧基硅烷溶液能够使得防火EPE珍珠保温管棉的组分混合的更均匀，且乙烯基三甲氧基硅烷溶液中乙烯基三甲氧基硅烷的质量分数为85％～90％时，能够更好地提高防火EPE珍珠保温管棉保温和防火性能。
优选地，所述EPE珍珠保温管棉中所述低密度聚乙烯的重量百分比为50％～75％，所述氢氧化铝的重量百分比为10％～35％。
发明人通过研究发现，EPE珍珠保温管棉中低密度聚乙烯、氢氧化铝符合上述重量百分比范围时，防火EPE珍珠保温管棉保温和防火性能更佳。
优选地，所述助剂包括2％～4％的色母粒和0.5％～2％的润滑剂。
优选地，所述抑烟剂为三氧化钼，所述润滑剂为硬脂酸锌、聚乙烯蜡、硬脂酸丁酯中的至少一种。
发明人通过研究发现，三氧化钼作为抑烟剂能够更好的抑制由上述组分制备的防火EPE珍珠保温管棉在燃烧过程中产生烟气。
本发明还提供上述任一所述的防火EPE珍珠保温管棉的制备方法，所述方法包括以下步骤：
(1)将上述任一所述的防火EPE珍珠保温管棉的组分按重量配比混合后熔融混炼得到混炼物；
(2)将丁烷注入所述混炼物中混合塑化，挤出成型。
优选地，在单螺杆挤出机中熔融混炼，所述单螺杆挤出机的螺杆温度为160℃～195℃。
本发明还提供一种防火EPE珍珠包装管，所述防火EPE珍珠包装管包括内层和外层，所述内层为上述任一所述的防火EPE珍珠保温管棉，所述外层为EPE覆膜，所述EPE覆膜包括以下重量百分比的组分：35％～50％的线性低密度聚乙烯、35％～50％的氢氧化铝、2％～4％的三氧化二锑、3％～5％的抑烟剂、3％～5％的表面改性溶液、2％～4％的色母粒和1％～2％的光亮剂，所述表面改性溶液为乙烯基三甲氧基硅烷溶液，所述EPE覆膜的厚度为0.2mm～0.3mm。
上述的防火EPE珍珠包装管为双层结构设计，内层是具有阻燃效果的防火EPE珍珠保温管棉，外层是具有高阻燃效果的EPE覆膜。上述的防火EPE珍珠包装管，在碰撞和火灾的情况下，可以安全地保护铝塑复合管材，同时防火EPE珍珠包装管导热系数低，可以减少流体在输送中热量的损失，达到很好的保温效果。上述的防火EPE珍珠包装管质轻，安装灵活方便，能吸收克服碰撞带来的能量，遇火灾，燃烧时低烟且具备建筑防火效果。上述的防火EPE珍珠包装管性能达到EN13501-1建筑材料及制品燃烧性能分级中管状绝热材料燃烧性能分级的BL级要求，还达到防水防潮的作用。
优选地，所述乙烯基三甲氧基硅烷溶液的溶剂为乙醇，所述乙烯基三甲氧基硅烷溶液中乙烯基三甲氧基硅烷的质量分数为85％～90％，所述抑烟剂为三氧化二钼。
本发明还提供一种上述所述的防火EPE珍珠包装管的制备方法，所述方法包括以下步骤：
(1)将上述任一所述的防火EPE珍珠保温管棉的组分按重量配比在45～55℃混合得到混合物A，将所述混合物A在单螺杆挤出机熔融混炼得到混炼物B；
(2)将丁烷以高压方式注入并与混炼物B均匀混合塑化，挤出成型，经过冷却、牵引和缠绕收卷后得到防火EPE珍珠保温管棉内层；
(3)将上述任一所述的EPE覆膜按重量配比在45～55℃混合得到混合物C，将所述混合物C在单螺杆挤出机熔融混炼得到混炼物D；
(4)在所述步骤(2)得到的防火EPE珍珠保温管棉内层上通过单螺杆挤出机的覆膜模具将所述混炼物D在170℃～220℃成膜，得到所述防火EPE珍珠包装管。
本发明的有益效果在于：本发明提供了一种防火EPE珍珠保温管棉和包装管及其制备方法，本发明的防火EPE珍珠保温管棉具有很好的阻燃效果，具有极低的导热系数，同时具有保温和防火性能。本发明的防火EPE珍珠包装管为双层结构设计，内层是具有阻燃效果的防火EPE珍珠保温管棉，外层是具有高阻燃效果的EPE覆膜，在碰撞和火灾的情况下，可以安全地保护铝塑复合管材，同时防火EPE珍珠包装管导热系数低，可以减少流体在输送中热量的损失，达到很好的保温效果。本发明的防火EPE珍珠包装管质轻，安装灵活方便，能吸收克服碰撞带来的能量，遇火灾，燃烧时低烟且具备建筑防火效果。
附图说明
图1为本发明的防火EPE珍珠包装管的横截面示意图。
其中，1、防火EPE珍珠保温管棉内侧，2、EPE覆膜外层
具体实施方式
为更好的说明本发明的目的、技术方案和优点，下面将结合具体实施例对本发明作进一步说明。
一种防火EPE珍珠保温管棉，所述EPE珍珠保温管棉包括以下重量百分比的组分：50％～80％的低密度聚乙烯、5％～35％的氢氧化铝、2％～4％的三氧化二锑、3％～5％的抑烟剂、3％～5％的表面改性溶液、0.5％～3％的抗静电剂和2.5％～6％的助剂，所述表面改性溶液为乙烯基三甲氧基硅烷溶液，所述乙烯基三甲氧基硅烷溶液的溶剂为乙醇，所述乙烯基三甲氧基硅烷溶液中乙烯基三甲氧基硅烷的质量分数为85％～90％，所述助剂包括2％～4％的色母粒和0.5％～2％的润滑剂，所述抑烟剂为三氧化钼，所述润滑剂为硬脂酸锌、聚乙烯蜡、硬脂酸丁酯中的至少一种。
实施例1
作为本发明实施例的一种防火EPE珍珠保温管棉，所述EPE珍珠保温管棉包括以下重量百分比的组分：80％的低密度聚乙烯、5％的氢氧化铝、2％的三氧化二锑、3％的抑烟剂、4％的表面改性溶液、1.5％的抗静电剂、3％的色母粒和1.5％的润滑剂，所述表面改性溶液为乙烯基三甲氧基硅烷溶液，所述乙烯基三甲氧基硅烷溶液的溶剂为乙醇，所述乙烯基三甲氧基硅烷溶液中乙烯基三甲氧基硅烷的质量分数为87％，所述抑烟剂为三氧化钼，所述润滑剂为硬脂酸锌。
本实施例的防火EPE珍珠保温管棉的制备方法包括以下步骤：
(1)将上述任一所述的防火EPE珍珠保温管棉的组分按重量配比在45～55℃混合得到混合物A，将所述混合物A在单螺杆挤出机熔融混炼得到混炼物B；
(2)将丁烷以高压方式注入并与混炼物B均匀混合塑化，于160℃～195℃挤出成型，经过冷却、牵引和缠绕收卷后得到防火EPE珍珠保温管棉。
实施例2-实施例5的防火EPE珍珠保温管棉的配方如表1所示。
表1实施例2-实施例5的防火EPE珍珠保温管棉的组分及含量
实施例6
作为本发明实施例的一种防火EPE珍珠包装管，所述防火EPE珍珠包装管包括内层和外层，所述内层为实施例1所述的防火EPE珍珠保温管棉，所述外层为EPE覆膜，所述EPE覆膜包括以下重量百分比的组分：50％的线性低密度聚乙烯、35％的氢氧化铝、2％的三氧化二锑、3％的作为抑烟剂的三氧化钼、4％的表面改性溶液、4％的色母粒和2％的光亮剂，所述表面改性溶液为乙烯基三甲氧基硅烷溶液，所述乙烯基三甲氧基硅烷溶液的溶剂为乙醇，所述乙烯基三甲氧基硅烷溶液中乙烯基三甲氧基硅烷的质量分数为87％，所述EPE覆膜的厚度为0.25mm。
本实施例的防火EPE珍珠包装管的制备方法，所述方法包括以下步骤：
(1)将上述任一所述的防火EPE珍珠保温管棉的组分按重量配比在45～55℃混合得到混合物A，将所述混合物A在单螺杆挤出机于160℃～195℃熔融混炼得到混炼物B；
(2)将丁烷以高压方式注入珍珠棉生产线并与混炼物B均匀混合塑化，挤出成型，经过冷却、牵引和缠绕收卷后得到防火EPE珍珠保温管棉内层；
(3)将EPE覆膜按重量配比在45～55℃混合得到混合物C，将所述混合物C在单螺杆挤出机熔融混炼得到混炼物D；
(4)在所述步骤(2)得到的防火EPE珍珠保温管棉内层上通过单螺杆挤出机的覆膜模具将所述混炼物D在170℃～220℃成膜，得到所述防火EPE珍珠包装管。
实施例7
作为本发明实施例的一种防火EPE珍珠包装管，所述防火EPE珍珠包装管包括内层和外层，所述内层为实施例2所述的防火EPE珍珠保温管棉，所述外层为EPE覆膜，所述EPE覆膜包括以下重量百分比的组分：40％的线性低密度聚乙烯、45％的氢氧化铝、2％的三氧化二锑、3％的作为抑烟剂的三氧化钼、4％的表面改性溶液、4％的色母粒和2％的光亮剂，所述表面改性溶液为乙烯基三甲氧基硅烷溶液，所述乙烯基三甲氧基硅烷溶液的溶剂为乙醇，所述乙烯基三甲氧基硅烷溶液中乙烯基三甲氧基硅烷的质量分数为87％，所述EPE覆膜的厚度为0.25mm。
实施例8
作为本发明实施例的一种防火EPE珍珠包装管，所述防火EPE珍珠包装管包括内层和外层，所述内层为实施例3所述的防火EPE珍珠保温管棉，所述外层为EPE覆膜，所述EPE覆膜包括以下重量百分比的组分：35％的线性低密度聚乙烯、50％的氢氧化铝、2％的三氧化二锑、3％的作为抑烟剂的三氧化钼、4％的表面改性溶液、4％的色母粒和2％的光亮剂，所述表面改性溶液为乙烯基三甲氧基硅烷溶液，所述乙烯基三甲氧基硅烷溶液的溶剂为乙醇，所述乙烯基三甲氧基硅烷溶液中乙烯基三甲氧基硅烷的质量分数为87％，所述EPE覆膜的厚度为0.25mm。
实施例9
作为本发明实施例的一种防火EPE珍珠包装管，所述防火EPE珍珠包装管包括内层和外层，所述内层为实施例4所述的防火EPE珍珠保温管棉，所述外层为EPE覆膜，所述EPE覆膜包括以下重量百分比的组分：40％的线性低密度聚乙烯、45％的氢氧化铝、2％的三氧化二锑、3％的作为抑烟剂的三氧化钼、4％的表面改性溶液、4％的色母粒和2％的光亮剂，所述表面改性溶液为乙烯基三甲氧基硅烷溶液，所述乙烯基三甲氧基硅烷溶液的溶剂为乙醇，所述乙烯基三甲氧基硅烷溶液中乙烯基三甲氧基硅烷的质量分数为87％，所述EPE覆膜的厚度为0.25mm。
实施例10
作为本发明实施例的一种防火EPE珍珠包装管，所述防火EPE珍珠包装管包括内层和外层，所述内层为实施例5所述的防火EPE珍珠保温管棉，所述外层为EPE覆膜，所述EPE覆膜包括以下重量百分比的组分：35％的线性低密度聚乙烯、50％的氢氧化铝、2％的三氧化二锑、3％的作为抑烟剂的三氧化钼、4％的表面改性溶液、4％的色母粒和2％的光亮剂，所述表面改性溶液为乙烯基三甲氧基硅烷溶液，所述乙烯基三甲氧基硅烷溶液的溶剂为乙醇，所述乙烯基三甲氧基硅烷溶液中乙烯基三甲氧基硅烷的质量分数为87％，所述EPE覆膜的厚度为0.25mm。
对比例3
作为本发明对比例的一种防火EPE珍珠包装管，所述防火EPE珍珠包装管包括内层和外层，所述内层为对比例1所述的防火EPE珍珠保温管棉，所述外层为EPE覆膜，所述EPE覆膜包括以下重量百分比的组分：95％的线性低密度聚乙烯、4％的表面改性溶液、4％的色母粒和2％的光亮剂，所述表面改性溶液为乙烯基三甲氧基硅烷溶液，所述乙烯基三甲氧基硅烷溶液的溶剂为乙醇，所述乙烯基三甲氧基硅烷溶液中乙烯基三甲氧基硅烷的质量分数为87％，所述EPE覆膜的厚度为0.25mm。
对比例4
作为本发明对比例的一种防火EPE珍珠包装管，所述防火EPE珍珠包装管包括内层和外层，所述内层为对比例1所述的防火EPE珍珠保温管棉，所述外层为EPE覆膜，所述EPE覆膜包括以下重量百分比的组分：35％的线性低密度聚乙烯、50％的氢氧化铝、2％的三氧化二锑、3％的作为抑烟剂的三氧化钼、4％的表面改性溶液、4％的色母粒和2％的光亮剂，所述表面改性溶液为乙烯基三甲氧基硅烷溶液，所述乙烯基三甲氧基硅烷溶液的溶剂为乙醇，所述乙烯基三甲氧基硅烷溶液中乙烯基三甲氧基硅烷的质量分数为87％，所述EPE覆膜的厚度为0.25mm。
对比例5
作为本发明对比例的一种防火EPE珍珠包装管，所述防火EPE珍珠包装管包括内层和外层，所述内层为对比例2所述的防火EPE珍珠保温管棉，所述外层为EPE覆膜，所述EPE覆膜包括以下重量百分比的组分：35％的线性低密度聚乙烯、50％的氢氧化铝、2％的三氧化二锑、3％的作为抑烟剂的三氧化钼、4％的表面改性溶液、4％的色母粒和2％的光亮剂，所述表面改性溶液为乙烯基三甲氧基硅烷溶液，所述乙烯基三甲氧基硅烷溶液的溶剂为乙醇，所述乙烯基三甲氧基硅烷溶液中乙烯基三甲氧基硅烷的质量分数为87％，所述EPE覆膜的厚度为0.25mm。
对比例6
作为本发明对比例的一种防火EPE珍珠包装管，所述防火EPE珍珠包装管包括内层和外层，所述内层为实施例5所述的防火EPE珍珠保温管棉，所述外层为EPE覆膜，所述EPE覆膜包括以下重量百分比的组分：95％的线性低密度聚乙烯、4％的表面改性溶液、4％的色母粒和2％的光亮剂，所述表面改性溶液为乙烯基三甲氧基硅烷溶液，所述乙烯基三甲氧基硅烷溶液的溶剂为乙醇，所述乙烯基三甲氧基硅烷溶液中乙烯基三甲氧基硅烷的质量分数为87％，所述EPE覆膜的厚度为0.25mm。
对比例7
作为本发明对比例的一种防火EPE珍珠包装管，所述防火EPE珍珠包装管包括内层和外层，所述内层为实施例5所述的防火EPE珍珠保温管棉，所述外层为EPE覆膜，所述EPE覆膜包括以下重量百分比的组分：所述EPE覆膜包括以下重量百分比的组分：53％的线性低密度聚乙烯、35％的氢氧化铝、2％的三氧化二锑、4％的表面改性溶液、4％的色母粒和2％的光亮剂，所述表面改性溶液为乙烯基三甲氧基硅烷溶液，所述乙烯基三甲氧基硅烷溶液的溶剂为乙醇，所述乙烯基三甲氧基硅烷溶液中乙烯基三甲氧基硅烷的质量分数为87％，所述EPE覆膜的厚度为0.25mm。
效果例1
制备实施例6-10、对比例3-7的防火EPE珍珠包装管，并导热性能和防火性能进行检测，结果如表2所示。
原料：所需原料及来源：乙醇(市售)、乙烯基三甲氧基硅烷(佛山市圣亿塑料化工有限公司)、氢氧化铝(山东泰星新材料股份有限公司)、低密度聚乙烯951-000(茂名石化)、线性低密度聚乙烯7042N(兰州石化)、三氧化二锑(杭州龙卷风化工有限公司)、三氧化钼(抑烟剂，郑州市金水区荣威化工产品有限公司)、抗静电剂SAS-93(科莱恩)、润滑剂(硬脂酸锌市售)、光亮剂BF3(上海高分子研究所)。
设备：高速混料机HY-100(东莞环亚塑胶机械有限公司)、珍珠棉生产线FS-FPG105(龙口市富士包装机械有限公司)、单螺杆挤出机SJ65(余姚江北金鑫塑机有限公司)、SBI单体燃烧装置(莫帝斯燃烧技术(中国)有限公司)、导热系数测试仪ZRX-29370(北京中瑞祥科技有限公司)。
表2 EPE珍珠包装管的性能
BL：火焰增长率指数≤270W/s
火焰横向蔓延＜测试边距且600秒内的放热总量≤7.5MJ
火焰垂直蔓延≤150mm(60秒内)
DL：火焰增长率指数≤2100W/s
火焰横向蔓延＜测试边距且600秒内的放热总量≤100MJ
火焰垂直蔓延≤150mm(60秒内)
s1：比S2的要求更加严格，SMOGRA≤105m2/s2，且TSP600s≤250m2
s2：总产烟量和烟气增长比率是局限性的，SMOGRA≤580m2/s2，且TSP600s≤1600m2
s3：对烟气生成无限制，不是s1也不是s2
d0＝根据EN 13823测试，600秒内没有产生燃烧滴落物或颗粒
d1＝根据EN13823测试，600秒内持续10秒以上没有产生燃烧滴落物或颗粒
d2＝不属于d0和d1的分类，在EN ISO 11925-2点火测试中点燃了滤纸则分为d2级
通过比较实施例6-10与对比例4-5，说明防火EPE珍珠包装管内层的防火EPE珍珠保温管棉中氢氧化铝、三氧化二锑和作为抑烟剂的三氧化钼对于防火EPE珍珠包装管的防火和导热性能有重要影响，EPE珍珠保温管棉中氢氧化铝、三氧化二锑和作为抑烟剂的三氧化钼协同增强了EPE珍珠包装管的防火性能，降低了EPE珍珠包装管的导热系数，提高了保温性能。通过比较实施例6-10与对比例6-7，说明说明防火EPE珍珠包装管外层的EPE覆膜中氢氧化铝、三氧化二锑和作为抑烟剂的三氧化钼对于防火EPE珍珠包装管的防火和导热性能有重要影响，EPE覆膜中氢氧化铝、三氧化二锑和作为抑烟剂的三氧化钼协同增强了EPE珍珠包装管的防火性能，降低了EPE珍珠包装管的导热系数，提高了保温性能。
最后所应当说明的是，以上实施例仅用以说明本发明的技术方案而非对本发明保护范围的限制，尽管参照较佳实施例对本发明作了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的实质和范围。
Claims (10)
1.一种防火EPE珍珠保温管棉，其特征在于，所述EPE珍珠保温管棉包括以下重量百分比的组分：50％～80％的低密度聚乙烯、5％～35％的氢氧化铝、2％～4％的三氧化二锑、3％～5％的抑烟剂、3％～5％的表面改性溶液、0.5％～3％的抗静电剂和2.5％～6％的助剂，所述表面改性溶液为乙烯基三甲氧基硅烷溶液。
2.根据权利要求1所述的防火EPE珍珠保温管棉，其特征在于，所述乙烯基三甲氧基硅烷溶液的溶剂为乙醇，所述乙烯基三甲氧基硅烷溶液中乙烯基三甲氧基硅烷的质量分数为85％～90％。
3.根据权利要求1所述的防火EPE珍珠保温管棉，其特征在于，所述EPE珍珠保温管棉中所述低密度聚乙烯的重量百分比为50％～75％，所述氢氧化铝的重量百分比为10％～35％。
4.根据权利要求1所述的防火EPE珍珠保温管棉，其特征在于，所述助剂包括2％～4％的色母粒和0.5％～2％的润滑剂。
5.根据权利要求4所述的防火EPE珍珠保温管棉，其特征在于，所述抑烟剂为三氧化钼，所述润滑剂为硬脂酸锌、聚乙烯蜡、硬脂酸丁酯中的至少一种。
6.如权利要求1-5任一所述的防火EPE珍珠保温管棉的制备方法，其特征在于，所述方法包括以下步骤：
(1)将如权利要求1-5任一所述的防火EPE珍珠保温管棉的组分按重量配比混合后熔融混炼得到混炼物；
(2)将丁烷注入所述混炼物中混合塑化，挤出成型。
7.根据权利要求6所述的防火EPE珍珠保温管棉的制备方法，其特征在于，在单螺杆挤出机中熔融混炼，所述单螺杆挤出机的挤出螺杆温度为160℃～195℃。
8.一种防火EPE珍珠包装管，其特征在于，所述防火EPE珍珠包装管包括内层和外层，所述内层为如权利要求1-5任一所述的防火EPE珍珠保温管棉，所述外层为EPE覆膜，所述EPE覆膜包括以下重量百分比的组分：35％～50％的线性低密度聚乙烯、35％～50％的氢氧化铝、2％～4％的三氧化二锑、3％～5％的抑烟剂、3％～5％的表面改性溶液、2％～4％的色母粒和1％～2％的光亮剂，所述表面改性溶液为乙烯基三甲氧基硅烷溶液，所述EPE覆膜的厚度为0.2mm～0.3mm。
9.根据权利要求8所述的防火EPE珍珠包装管，其特征在于，所述乙烯基三甲氧基硅烷溶液的溶剂为乙醇，所述乙烯基三甲氧基硅烷溶液中乙烯基三甲氧基硅烷的质量分数为85％～90％，所述抑烟剂为三氧化二钼。
10.一种如权利要求8-9所述的防火EPE珍珠包装管的制备方法，其特征在于，所述方法包括以下步骤：
(1)将如权利要求1-5任一所述的防火EPE珍珠保温管棉的组分按重量配比在45～55℃混合得到混合物A，将所述混合物A在单螺杆挤出机熔融混炼得到混炼物B；
(2)将丁烷以高压方式注入并与混炼物B均匀混合塑化，挤出成型，经过冷却、牵引和缠绕收卷后得到防火EPE珍珠保温管棉内层；
(3)将如权利要求8-9任一所述的EPE覆膜按重量配比在45～55℃混合得到混合物C，将所述混合物C在单螺杆挤出机熔融混炼得到混炼物D；
(4)在所述步骤(2)得到的防火EPE珍珠保温管棉内层上通过单螺杆挤出机的覆膜模具将所述混炼物D在170℃～220℃成膜，得到所述防火EPE珍珠包装管。
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