CN109308955A - 一种光缆电缆用吸水膨胀型阻水带及其制备方法 - Google Patents
一种光缆电缆用吸水膨胀型阻水带及其制备方法 Download PDFInfo
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Abstract
一种光缆电缆用吸水膨胀型阻水带,包括基体层、吸水层与保护层,其中,基体层的内壁与光缆或电缆的外部相接触,吸水层的底面与基体层的外壁相连接,吸水层上位于吸水层、基体层交接处之外的部位都外包裹有保护层,保护层的底围覆盖于吸水层、基体层的交接处之上;所述吸水层包括高吸水膨胀材料,所述保护层为吸水后可溶解的薄膜,所述基体层、吸水层之间可设置粘结层,所述基体层优选为金属。本设计不仅吸水阻水性能较强、层数较少、结构简单,而且结构轻薄、吸水膨胀倍数高、吸水效率高、阻水性能好,不会对光缆或电缆的使用造成影响,还具有屏蔽信号、防止鼠咬的优点。
Description
技术领域
本发明涉及一种阻水材料,尤其涉及一种光缆电缆用吸水膨胀型阻水带及其制备方法,具体适用于增强吸水阻水性能,且层数较少、结构简单。
背景技术
光缆或电缆在长期使用过程中,潮气和水有时会进入光缆或电缆,可能给光纤损耗特性和静态疲劳性能带来较大的损害,水份一方面会对光纤产生氢损,造成光纤产生裂纹,另一方面,在低温时,还会因缆芯中存在的水冻结而使光纤断裂,以及水对光缆或电缆中金属体的腐蚀等,都会有损光缆或电缆寿命。因此,阻止水在光缆或电缆中存在很重要。
为解决上述问题,确保光缆、电缆的安全运行及延长使用寿命,现有技术通常采用阻水油膏来解决,但其加工繁琐、防水效果差、维护困难。此外,也有采用阻水带的技术方案,但现有阻水带的吸水阻水性能都较差,还会带来层数多、影响光缆或电缆正常使用的缺陷。
公开该背景技术部分的信息仅仅旨在增加对本专利申请的总体背景的理解,而不应当被视为承认或以任何形式暗示该信息构成已为本领域一般技术人员所公知的现有技术。
发明内容
本发明的目的是克服现有技术中存在的吸水阻水性能较差、层数较多、结构繁琐的缺陷与问题,提供一种吸水阻水性能较好、层数较少、结构简单的光缆电缆用吸水膨胀型阻水带及其制备方法。
为实现以上目的,本发明的技术解决方案是:一种光缆电缆用吸水膨胀型阻水带,包括用于裹在光缆或电缆外部的基体层,该基体层的内壁与光缆或电缆的外部相接触;
所述吸水膨胀型阻水带还包括吸水层与保护层,所述吸水层的底面与基体层的外壁相连接,吸水层上位于吸水层、基体层交接处之外的部位都外包裹有保护层,保护层的底围覆盖于吸水层、基体层的交接处之上;所述吸水层包括高吸水膨胀材料,所述保护层为吸水后可溶解的薄膜。
所述保护层的底围越过吸水层、基体层的交接处之后,朝基体层的方向延伸。
所述保护层为聚乙烯醇薄膜、聚酯薄膜、聚氨酯薄膜中的任意一种。
所述高吸水膨胀材料为高吸水材料蒙脱土、丙烯酰胺、聚丙烯酰胺、聚丙烯酸酯、云母粉、丙烯肽胺、聚乙烯醇、聚丙烯酸盐、纤维材料、淀粉接枝丙烯酸盐类中的任意一种或任意混合或任意一种的共聚物。
所述吸水层的底面经粘结层与基体层的外壁相连接,所述高吸水膨胀材料为粉末状,且高吸水膨胀材料经静电植绒的方式喷洒在粘结层上。
所述粘结层为粘结剂涂抹而成,所述粘结剂为粘接材料与有机溶剂的混合物,所述粘接材料为环氧类、聚氨酯类、聚乙烯醇缩丁醛、聚乙烯醇、聚乙烯比咯烷酮中的任意一种或任意混合,所述粘结剂的质量百分比浓度为5%―30%。
所述有机溶剂为乙醇。
所述基体层的制造材料为钛合金、铝合金、不锈钢、铜或铝。
一种上述光缆电缆用吸水膨胀型阻水带的制备方法,所述制备方法包括以下步骤:先将高吸水膨胀材料均匀的喷洒在基体层上以形成吸水层,再在保护层的内壁上喷具有粘结性能的雾状液体,然后将保护层通过热压的方式包裹在吸水层的外部,保护层上被喷有具有粘结性能的雾状液体的一面与吸水层相接触,热压的温度为室温―80℃,热压完毕后即可获得所述吸水膨胀型阻水带。
一种上述光缆电缆用吸水膨胀型阻水带的制备方法,所述制备方法包括以下步骤:先将粘接材料与有机溶剂混合以获得粘结剂,该粘结剂的质量百分比浓度为5%―30%,再将所得粘结剂均匀喷涂在基体层的外壁上以形成粘结层,然后将粉末状的高吸水膨胀材料通过静电植绒的方式均匀喷附在粘结层的顶面上以形成吸水层,再在保护层的内壁上喷具有粘结性能的雾状液体,然后将保护层通过热压的方式包裹在吸水层的外部,保护层上被喷有具有粘结性能的雾状液体的一面与吸水层相接触,热压的温度为室温―80℃,热压完毕后即可获得所述吸水膨胀型阻水带。
与现有技术相比,本发明的有益效果为:
1、本发明一种光缆电缆用吸水膨胀型阻水带及其制备方法中,由内至外,依次包括基体层、吸水层与保护层,其中,吸水层包括高吸水膨胀材料,保护层为吸水后可溶解的薄膜,保护层上位于吸水层、基体层交接处之外的部位都外包裹有保护层,保护层的底围覆盖于吸水层、基体层的交接处之上,应用时,当遇到外部水分时,保护层吸水后会迅速溶解,不仅不会阻挡水份浸入到吸水层,而且会提高吸水效率,而吸水层采取的吸水材料属于高吸水膨胀材料,其不仅能够迅速吸水,而且在吸水之后能够迅速膨胀,形成水凝胶状类的物质,该种物质不仅似一堵墙可以阻止水的流动以保护光缆电缆,起到阻水与吸水的双重效果,而且能够防止老鼠咬的作用,充分保护光缆电缆的缆芯。因此,本发明不仅吸水阻水性能较强,而且层数较少、结构简单。
2、本发明一种光缆电缆用吸水膨胀型阻水带及其制备方法中,保护层为吸水后可溶解的薄膜,优选为聚乙烯醇薄膜、聚酯薄膜、聚氨酯薄膜中的任意一种,它不仅能够对吸水层进行保护,尤其是避免在储存和运输过程中发生掉粉现象,而且能够吸水即可溶解,不影响吸水层的吸水、阻水性能,提高吸水、阻水效率。因此,本发明不仅安全性较高,而且吸水、阻水效果较好。
3、本发明一种光缆电缆用吸水膨胀型阻水带及其制备方法中,当组成吸水层的高吸水膨胀材料为粉末状结构时,可采取静电植绒的方式将高吸水膨胀材料喷洒在粘结层上,不仅能够提高吸水层的均匀度,而且能够提高喷涂的效率,利于与现有的阻水带生产线对接,实现阻水带的产业化生产,高吸水膨胀材料的粉末颗粒越细,植绒效果越好。因此,本发明的生产效率较高,利于工业化生产。
4、本发明一种光缆电缆用吸水膨胀型阻水带及其制备方法中,基体层优选为钛合金、铝合金、不锈钢、铜或铝时,除了起到对信号的屏蔽作用之外,还能将现有技术中阻水带与钢带、铝带结构所发挥的功能结合在一起,同时具备吸水、阻水、抗侧压、抗拉、防老鼠咬以及保护管套的功能,不会对光缆或电缆的正常使用造成影响,适合于现有各种光缆或电缆的使用。因此,本发明不仅功能较多,而且应用范围较广。
5、本发明一种光缆电缆用吸水膨胀型阻水带及其制备方法中,至多为保护层、吸水层、粘结层、基体层这四层结构,不仅层数较少,而且厚度较薄,其中,“粘结层+吸水层+保护层”一共的厚度只有0.05mm―1mm,而其吸水膨胀倍数却至少大于10倍。因此,本发明不仅结构轻薄,而且吸水膨胀倍数高、阻水效果好,不会对光缆电缆造成影响。
6、本发明一种光缆电缆用吸水膨胀型阻水带及其制备方法中,先选用高吸水膨胀材料作为吸水层材料,再通过膜材料技术将高吸水膨胀材料结合在宽幅金属带上,然后覆盖保护层,最后经简单切割制得成品,不仅大大简化了生产工艺,而且可精确实现与现有光缆钢铝带生产工艺的无缝对接。因此,本发明不仅生产工艺简单,而且生产效率较高,适合规模化生产。
附图说明
图1是本发明的结构示意图。
图2是图1的剖视图。
图中:基体层1、吸水层2、保护层3、粘结层4。
具体实施方式
以下结合附图说明和具体实施方式对本发明作进一步详细的说明。
参见图1与图2,一种光缆电缆用吸水膨胀型阻水带,包括用于裹在光缆或电缆外部的基体层1,该基体层1的内壁与光缆或电缆的外部相接触;
所述吸水膨胀型阻水带还包括吸水层2与保护层3,所述吸水层2的底面与基体层1的外壁相连接,吸水层2上位于吸水层2、基体层1交接处之外的部位都外包裹有保护层3,保护层3的底围覆盖于吸水层2、基体层1的交接处之上;所述吸水层2包括高吸水膨胀材料,所述保护层3为吸水后可溶解的薄膜。
所述保护层3的底围越过吸水层2、基体层1的交接处之后,朝基体层1的方向延伸。
所述保护层3为聚乙烯醇薄膜、聚酯薄膜、聚氨酯薄膜中的任意一种。
所述高吸水膨胀材料为高吸水材料蒙脱土、丙烯酰胺、聚丙烯酰胺、聚丙烯酸酯、云母粉、丙烯肽胺、聚乙烯醇、聚丙烯酸盐、纤维材料、淀粉接枝丙烯酸盐类中的任意一种或任意混合或任意一种的共聚物。
所述吸水层2的底面经粘结层4与基体层1的外壁相连接,所述高吸水膨胀材料为粉末状,且高吸水膨胀材料经静电植绒的方式喷洒在粘结层4上。
所述粘结层4为粘结剂涂抹而成,所述粘结剂为粘接材料与有机溶剂的混合物,所述粘接材料为环氧类、聚氨酯类、聚乙烯醇缩丁醛、聚乙烯醇、聚乙烯比咯烷酮中的任意一种或任意混合,所述粘结剂的质量百分比浓度为5%―30%。
所述有机溶剂为乙醇。
所述基体层1的制造材料为钛合金、铝合金、不锈钢、铜或铝。
一种上述光缆电缆用吸水膨胀型阻水带的制备方法,所述制备方法包括以下步骤:先将高吸水膨胀材料均匀的喷洒在基体层1上以形成吸水层2,再在保护层3的内壁上喷具有粘结性能的雾状液体,然后将保护层3通过热压的方式包裹在吸水层2的外部,保护层3上被喷有具有粘结性能的雾状液体的一面与吸水层2相接触,热压的温度为室温―80℃,热压完毕后即可获得所述吸水膨胀型阻水带。
一种上述光缆电缆用吸水膨胀型阻水带的制备方法,所述制备方法包括以下步骤:先将粘接材料与有机溶剂混合以获得粘结剂,该粘结剂的质量百分比浓度为5%―30%,再将所得粘结剂均匀喷涂在基体层1的外壁上以形成粘结层4,然后将粉末状的高吸水膨胀材料通过静电植绒的方式均匀喷附在粘结层4的顶面上以形成吸水层2,再在保护层3的内壁上喷具有粘结性能的雾状液体,然后将保护层3通过热压的方式包裹在吸水层2的外部,保护层3上被喷有具有粘结性能的雾状液体的一面与吸水层2相接触,热压的温度为室温―80℃,热压完毕后即可获得所述吸水膨胀型阻水带。
本发明的原理说明如下:
限定“保护层的底围越过吸水层、基体层的交接处之后,朝基体层的方向延伸”的原因在于:最优情况下保护层是不接触粘结层和金属基体的。但在实际操作中,由于保护层与吸水层依靠热压结合在一起,存在一个加压的作用,受压力的影响,以及吸水层均匀程度的影响,部分位置就会出现保护层的底围向下延伸的现象,从而与粘结层或基体层存在接触。
有机溶剂优选为乙醇的原因在于:本发明里是没有添加增塑剂等有害环境的助剂的,同时,乙醇还是一种对环境无污染且易挥发的有机溶剂,因而,若采用乙醇作为有机溶剂来配置粘结剂,在成品中就不用考虑有机溶剂除去的问题,粘结剂成分较简单,对环境无害。
粘结剂的质量百分比浓度限定为5%―30%的原因在于:低于5%会导致粘结剂浓度较低,粘结效果太差;高于30%粘结剂则浓度太高,粘结剂浓稠,流动性差,不易于涂覆。
实施例1:
参见图1与图2,一种光缆电缆用吸水膨胀型阻水带,包括基体层1、吸水层2与保护层3,其中,基体层1的内壁与光缆或电缆的外部相接触,吸水层2的底面与基体层1的外壁相连接,吸水层2上位于吸水层2、基体层1交接处之外的部位都外包裹有保护层3,保护层3的底围覆盖于吸水层2、基体层1的交接处之上;所述吸水层2包括高吸水膨胀材料,所述保护层3为吸水后可溶解的薄膜。所述保护层3为聚乙烯醇薄膜、聚酯薄膜、聚氨酯薄膜中的任意一种。所述高吸水膨胀材料为高吸水材料蒙脱土、丙烯酰胺、聚丙烯酰胺、聚丙烯酸酯、云母粉、丙烯肽胺、聚乙烯醇、聚丙烯酸盐、纤维材料、淀粉接枝丙烯酸盐类中的任意一种或任意混合或任意一种的共聚物。
一种上述光缆电缆用吸水膨胀型阻水带的制备方法,所述制备方法包括以下步骤:先将高吸水膨胀材料均匀的喷洒在基体层1上以形成吸水层2,再在保护层3的内壁上喷具有粘结性能的雾状液体,然后将保护层3通过热压的方式包裹在吸水层2的外部,保护层3上被喷有具有粘结性能的雾状液体的一面与吸水层2相接触,热压的温度为室温―80℃,热压完毕后即可获得所述吸水膨胀型阻水带。
实施例2:
基本内容同实施例1,不同之处在于:
所述吸水层2的底面经粘结层4与基体层1的外壁相连接,所述高吸水膨胀材料为粉末状,且高吸水膨胀材料经静电植绒的方式喷洒在粘结层4上。所述粘结层4为粘结剂涂抹而成,所述粘结剂为粘接材料与有机溶剂的混合物,所述粘接材料为环氧类、聚氨酯类、聚乙烯醇缩丁醛、聚乙烯醇、聚乙烯比咯烷酮中的任意一种或任意混合,所述粘结剂的质量百分比浓度为5%。优选有机溶剂为乙醇。
一种上述光缆电缆用吸水膨胀型阻水带的制备方法,所述制备方法包括以下步骤:先将粘接材料与有机溶剂混合以获得粘结剂,该粘结剂的质量百分比浓度为5%,再将所得粘结剂均匀喷涂在基体层1的外壁上以形成粘结层4,然后将粉末状的高吸水膨胀材料通过静电植绒的方式均匀喷附在粘结层4的顶面上以形成吸水层2,再在保护层3的内壁上喷具有粘结性能的雾状液体,然后将保护层3通过热压的方式包裹在吸水层2的外部,保护层3上被喷有具有粘结性能的雾状液体的一面与吸水层2相接触,热压的温度为室温―80℃,热压完毕后即可获得所述吸水膨胀型阻水带。
实施例3:
基本内容同实施例2,不同之处在于:
粘结剂的质量百分比浓度为18%。
实施例4:
基本内容同实施例2,不同之处在于:
粘结剂的质量百分比浓度为30%。
实施例5:
基本内容同实施例1,不同之处在于:
所述基体层1的制造材料为钛合金、铝合金、不锈钢、铜或铝。
Claims (10)
1.一种光缆电缆用吸水膨胀型阻水带,包括用于裹在光缆或电缆外部的基体层(1),该基体层(1)的内壁与光缆或电缆的外部相接触,其特征在于:
所述吸水膨胀型阻水带还包括吸水层(2)与保护层(3),所述吸水层(2)的底面与基体层(1)的外壁相连接,吸水层(2)上位于吸水层(2)、基体层(1)交接处之外的部位都外包裹有保护层(3),保护层(3)的底围覆盖于吸水层(2)、基体层(1)的交接处之上;所述吸水层(2)包括高吸水膨胀材料,所述保护层(3)为吸水后可溶解的薄膜。
2.根据权利要求1所述的一种光缆电缆用吸水膨胀型阻水带,其特征在于:所述保护层(3)的底围越过吸水层(2)、基体层(1)的交接处之后,朝基体层(1)的方向延伸。
3.根据权利要求1或2所述的一种光缆电缆用吸水膨胀型阻水带,其特征在于:所述保护层(3)为聚乙烯醇薄膜、聚酯薄膜、聚氨酯薄膜中的任意一种。
4.根据权利要求1或2所述的一种光缆电缆用吸水膨胀型阻水带,其特征在于:所述高吸水膨胀材料为高吸水材料蒙脱土、丙烯酰胺、聚丙烯酰胺、聚丙烯酸酯、云母粉、丙烯肽胺、聚乙烯醇、聚丙烯酸盐、纤维材料、淀粉接枝丙烯酸盐类中的任意一种或任意混合或任意一种的共聚物。
5.根据权利要求1或2所述的一种光缆电缆用吸水膨胀型阻水带,其特征在于:所述吸水层(2)的底面经粘结层(4)与基体层(1)的外壁相连接,所述高吸水膨胀材料为粉末状,且高吸水膨胀材料经静电植绒的方式喷洒在粘结层(4)上。
6.根据权利要求5所述的一种光缆电缆用吸水膨胀型阻水带,其特征在于:所述粘结层(4)为粘结剂涂抹而成,所述粘结剂为粘接材料与有机溶剂的混合物,所述粘接材料为环氧类、聚氨酯类、聚乙烯醇缩丁醛、聚乙烯醇、聚乙烯比咯烷酮中的任意一种或任意混合,所述粘结剂的质量百分比浓度为5%―30%。
7.根据权利要求6所述的一种光缆电缆用吸水膨胀型阻水带,其特征在于:所述有机溶剂为乙醇。
8.根据权利要求1或2所述的一种光缆电缆用吸水膨胀型阻水带,其特征在于:所述基体层(1)的制造材料为钛合金、铝合金、不锈钢、铜或铝。
9.一种权利要求1或2所述的光缆电缆用吸水膨胀型阻水带的制备方法,其特征在于所述制备方法包括以下步骤:
先将高吸水膨胀材料均匀的喷洒在基体层(1)上以形成吸水层(2),再在保护层(3)的内壁上喷具有粘结性能的雾状液体,然后将保护层(3)通过热压的方式包裹在吸水层(2)的外部,保护层(3)上被喷有具有粘结性能的雾状液体的一面与吸水层(2)相接触,热压的温度为室温―80℃,热压完毕后即可获得所述吸水膨胀型阻水带。
10.根据权利要求9所述的一种光缆电缆用吸水膨胀型阻水带的制备方法,其特征在于所述制备方法包括以下步骤:
先将粘接材料与有机溶剂混合以获得粘结剂,该粘结剂的质量百分比浓度为5%―30%,再将所得粘结剂均匀喷涂在基体层(1)的外壁上以形成粘结层(4),然后将粉末状的高吸水膨胀材料通过静电植绒的方式均匀喷附在粘结层(4)的顶面上以形成吸水层(2),再在保护层(3)的内壁上喷具有粘结性能的雾状液体,然后将保护层(3)通过热压的方式包裹在吸水层(2)的外部,保护层(3)上被喷有具有粘结性能的雾状液体的一面与吸水层(2)相接触,热压的温度为室温―80℃,热压完毕后即可获得所述吸水膨胀型阻水带。
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