CN111674127A - 一种阻水带用无纺布及其制备工艺 - Google Patents

一种阻水带用无纺布及其制备工艺 Download PDF

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CN111674127A
CN111674127A CN202010500528.0A CN202010500528A CN111674127A CN 111674127 A CN111674127 A CN 111674127A CN 202010500528 A CN202010500528 A CN 202010500528A CN 111674127 A CN111674127 A CN 111674127A
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woven fabric
layer
water
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flame
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赵永良
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Jiangsu Dingliang Electric Technology Co ltd
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Abstract

本发明属于无纺布制备技术领域，尤其为一种阻水带用无纺布及其制备工艺，包括阻水带主体，所述阻水带主体的中部为无纺布芯层，所述无纺布芯层的顶面固定贴合连接有防水层，所述无纺布芯层的底面贴合连接有阻燃层，所述无纺布芯层的两侧固定连接有加固包边，所述加固包边分别包覆所述防水层的顶边侧和所述阻燃层的底边侧，所述加固包边上均布设置有铆压冲孔。本发明吸水颗粒采用氧化钙粉末或胆矾粉末，其中氧化钙遇水后变为氢氧化钙，其摩尔量不变，由此产生的形变系数小，胆矾能够吸水，并在吸水后反应生成蓝色的五水硫酸铜，工作人员可利用这一特性来检验防水层与无纺布芯层之间是否含有水分。

Description

一种阻水带用无纺布及其制备工艺
技术领域
本发明涉及无纺布制备技术领域，具体为一种阻水带用无纺布及其制备工艺。
背景技术
无纺布具有防潮、透气、柔韧、质轻、不助燃、容易分解、无毒无刺激性、色彩丰富、价格低廉、可循环再用等特点，如多采用聚丙烯粒料为原料，经高温熔融、喷丝、铺纲、热压卷取连续一步法生产而成，无纺布在建筑水利行业应用广泛，可用于土工布、沥青路基、公路, 铁路路基、土壤加固、排水、河坝、高尔夫球场、网球场用布、人工草坪、防土壤沉积及侵蚀、防淤泥、建筑防水材料、绝缘布、吸音材料、管道包布、其他建筑材料等等；由于无纺布的工艺流程短、生产速度快捷、产量高、成本低等特点而被广泛采用，机械设备和电缆中阻水带也采用无纺布作基布加吸水膨胀材料制成，电缆光缆是城市电力、通讯线路中必不可少的输送工具，但在敷设或维修过程中受到外办界机械压力，有时会引起水和湿气的进入，水和潮气侵入电缆光缆内部，会导致断线、绝缘性下降，为了保证光缆电缆安全运行及延长使用寿命，对阻水带制造方法国内外已作多种研究开发，目前国内阻水带加工方法，有夹层法，以无纺布为基带，然后将吸水剂与填充物均匀地散在布上，再用一层布盖住压辊成卷材，该制造方法对无纺布要求克重较大，必须包住填充物；也有涂敷法，利用胶粘剂使吸水聚合物附在无纺布，经加热后得到片状阻水带，浸渍法，将无纺布通过进入浸渍机，带上粘合剂，经烘干得产品。该几种制造方法中无纺布经热轧后，表面经融熔成纸状的光滑面，达到阻水效果主要是吸水膨胀材料，无纺布本身无法达到膨胀，这就带来整个阻水带厚度增加，克重加大，增加了电缆光缆的成本。
目前的阻水带用无纺布及其制备工艺存在下列问题：
1、目前的阻水带用无纺布在遇到水分后因为吸收而导致膨胀，并且不能直观地无纺布是否接触水汽进行观察。
2、目前的阻水带用无纺布的制备工艺均为固定式的，无法根据实际的需求灵活的变动。
发明内容
（一）解决的技术问题
针对现有技术的不足，本发明提供了一种阻水带用无纺布及其制备工艺，解决了目前的阻水带用无纺布在遇到水分后因为吸收而导致膨胀，并且不能直观地无纺布是否接触水汽进行观察，以及目前的阻水带用无纺布的制备工艺均为固定式的，无法根据实际的需求灵活的变动的问题。
（二）技术方案
为实现上述目的，本发明提供如下技术方案：一种阻水带用无纺布，包括阻水带主体，所述阻水带主体的中部为无纺布芯层，所述无纺布芯层的顶面固定贴合连接有防水层，所述无纺布芯层的底面贴合连接有阻燃层，所述无纺布芯层的两侧固定连接有加固包边，所述加固包边分别包覆所述防水层的顶边侧和所述阻燃层的底边侧，所述加固包边上均布设置有铆压冲孔，所述阻水带主体的正表面等距离或按照设定的幅度缝合连接有条纹限制线，所述防水层与所述无纺布芯层之间均布有吸水颗粒，所述无纺布芯层与所述阻燃层之间均布有阻燃颗粒。
作为本发明的一种优选技术方案，所述无纺布芯层为聚乙烯材料层，所述防水层为沥青类涂层或橡胶类薄膜、所述阻燃层为卤系阻燃剂。
作为本发明的一种优选技术方案，所述加固包边的中部褶皱构成M型结构。
作为本发明的一种优选技术方案，所述加固包边为铝合金材料或铝塑复合材料边。
一种阻水带用无纺布的制备工艺，包括下列步骤：
S1：将无纺布芯层的顶面喷洒含有吸水颗粒的粘接剂，然后将防水层覆盖于其顶面，将无纺布芯层的底面喷洒混合有阻燃颗粒的粘接剂，然后覆盖阻燃层于其底面，构成基本材料；
S2：将两侧粘接有防水层和阻燃层的无纺布芯层在加热状态下压合连接，其压力为每平方厘米一千克至两千克，粘接温度为摄氏度至摄氏度；
S3：将压合后的基本材料裁剪成设定宽度的长条带，将两根长条带首尾衔接，其中，无纺布芯层交接部位、覆盖防水层的交接部位，和阻燃层的交接部位交替错开；
S4：将加固包边包覆于无纺布芯层、覆盖防水层和阻燃层的边侧，并通过冲孔机或铆压机将三者固定，初步构成阻水带主体；
S5：按照设定的间距或幅度，对阻水带主体的中部缝纫条纹限制线。
（三）有益效果
与现有技术相比，本发明提供了一种阻水带用无纺布及其制备工艺，具备以下有益效果：
1、该阻水带用无纺布及其制备工艺，吸水颗粒采用氧化钙粉末或胆矾粉末，其中氧化钙遇水后变为氢氧化钙，其摩尔量不变，由此产生的形变系数小，胆矾能够吸水，并在吸水后反应生成蓝色的五水硫酸铜，工作人员可利用这一特性来检验防水层与无纺布芯层之间是否含有水分。
2、该阻水带用无纺布及其制备工艺，通过M形加固包边，能够按照设定的形状贴附在需要进行阻水的部位，此时就能够通过对加固包边进行焊接或螺接，以便将阻水带主体固定于需要阻水、隔离火源的机械设备或电缆线的边侧。
附图说明
图1为本发明主观结构示意图；
图2为本发明侧剖结构连接示意图；
图3为本发明主视工艺流程示意图。
图中：1、阻水带主体；2、无纺布芯层；3、防水层；4、阻燃层；5、加固包边；6、铆压冲孔；7、条纹限制线；8、吸水颗粒；9、阻燃颗粒。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例
请参阅图1-3，本发明提供以下技术方案：一种阻水带用无纺布，包括阻水带主体1，阻水带主体1的中部为无纺布芯层2，无纺布芯层2的顶面固定贴合连接有防水层3，无纺布芯层2的底面贴合连接有阻燃层4，无纺布芯层2的两侧固定连接有加固包边5，加固包边5分别包覆防水层3的顶边侧和阻燃层4的底边侧，加固包边5上均布设置有铆压冲孔6，阻水带主体1的正表面等距离或按照设定的幅度缝合连接有条纹限制线7，防水层3与无纺布芯层2之间均布有吸水颗粒8，无纺布芯层2与阻燃层4之间均布有阻燃颗粒9。
本实施例中，使用时，将阻水带主体1包覆住需要阻水的机械设备或电缆线，然后层层螺旋缠绕，令第二圈的加固包边5压合第一圈的加固包边5，直至将需要阻水的机械设备或电缆线，完全包覆，无纺布芯层2作为阻水带主体1的基本结构，起到支撑和连接作用，防水层3起到阻隔水汽的作用，通常将其朝外侧布置，以便阻隔水汽侵入被阻水带主体1包覆的机械设备或电缆线，阻燃层4起到阻止高温燃烧的目的，通常将其朝内布置，用于面对被包覆的机械设备或电缆线，当包覆的机械设备或电缆线因为高温点燃时，阻燃层4能够起到阻燃的作用；铆压冲孔6通过机械冲压或挤压形成，用于对加固包边5产生形变，将无纺布芯层2、防水层3和阻燃层4的边侧压合为一体，条纹限制线7用于增强无纺布芯层2、防水层3和阻燃层4的连接紧密度，并且在无纺布芯层2吸水膨胀时限制其膨胀尺寸，吸水颗粒8采用氧化钙粉末或胆矾粉末，其中氧化钙遇水后变为氢氧化钙，其摩尔量不变，由此产生的形变系数小，胆矾能够吸水，并在吸水后反应生成蓝色的五水硫酸铜，工作人员可利用这一特性来检验防水层3与无纺布芯层2之间是否含有水分。
具体的，无纺布芯层2为聚乙烯材料层，防水层3为沥青类涂层或橡胶类薄膜、阻燃层4为卤系阻燃剂。
本实施例中，聚乙烯的化学分子结构具有良好的稳定性，因此采用聚乙烯材料作为无纺布芯层2，能够大幅度地提升其使用寿命；沥青类涂层具有良好的粘接性和融合性，能够在阻水带主体1交接的部位进行自动地粘接融合，橡胶类薄膜具有良好的柔性和可塑性，能够通过自身的形变对交接部位进行密封；卤系阻燃剂包括溴系阻燃剂和氯系阻燃剂，主要原因是卤系阻燃剂的添加量相对来说比较少且阻燃效率特别高，主要为四溴双酚A、十溴联苯醚、四溴邻苯二甲酚酐、二溴新戊二醇等。
具体的，加固包边5的中部褶皱构成M型结构。
本实施例中，加固包边5的中部褶皱构成M型结构，如此就能够与无纺布芯层2、防水层3和阻燃层4相互交接的部位相持平或突出其边侧的表面，以便于进行铆接、压合时与阻水带主体1的边侧保持同一水平面。
具体的，加固包边5为铝合金材料或铝塑复合材料边。
本实施例中，铝合金材料或复合材料具有形状塑性特性，当阻水带主体1按照设定的形状贴附在需要进行阻水的部位时，加固包边5能够保持自身的形状不变，进而规范阻水带主体1的整体形状，使其一直贴合在此部位，此时就能够通过对加固包边5进行焊接或螺接，以便将阻水带主体1固定于需要阻水、隔离火源的机械设备或电缆线的边侧。
一种阻水带用无纺布的制备工艺，包括下列步骤：
S1：将无纺布芯层2的顶面喷洒含有吸水颗粒8的粘接剂，然后将防水层3覆盖于其顶面，将无纺布芯层2的底面喷洒混合有阻燃颗粒9的粘接剂，然后覆盖阻燃层4于其底面，构成基本材料；
S2：将两侧粘接有防水层3和阻燃层4的无纺布芯层2在加热状态下压合连接，其压力为每平方厘米一千克至两千克，粘接温度为110摄氏度至130摄氏度；
S3：将压合后的基本材料裁剪成设定宽度的长条带，将两根长条带首尾衔接，其中，无纺布芯层2交接部位、覆盖防水层3的交接部位，和阻燃层4的交接部位交替错开；
S4：将加固包边5包覆于无纺布芯层2、覆盖防水层3和阻燃层4的边侧，并通过冲孔机或铆压机将三者固定，初步构成阻水带主体1；
S5：按照设定的间距或幅度，对阻水带主体1的中部缝纫条纹限制线7。
本实施例中，吸水颗粒8和阻燃颗粒9为已经公开的广泛运用于工业生产和日常生活的已知技术。
本发明的工作原理及使用流程：使用时，将阻水带主体1包覆住需要阻水的机械设备或电缆线，然后层层螺旋缠绕，令第二圈的加固包边5压合第一圈的加固包边5，直至将需要阻水的机械设备或电缆线，完全包覆，无纺布芯层2作为阻水带主体1的基本结构，起到支撑和连接作用，防水层3起到阻隔水汽的作用，通常将其朝外侧布置，以便阻隔水汽侵入被阻水带主体1包覆的机械设备或电缆线，阻燃层4起到阻止高温燃烧的目的，通常将其朝内布置，用于面对被包覆的机械设备或电缆线，当包覆的机械设备或电缆线因为高温点燃时，阻燃层4能够起到阻燃的作用；铆压冲孔6通过机械冲压或挤压形成，用于对加固包边5产生形变，将无纺布芯层2、防水层3和阻燃层4的边侧压合为一体，条纹限制线7用于增强无纺布芯层2、防水层3和阻燃层4的连接紧密度，并且在无纺布芯层2吸水膨胀时限制其膨胀尺寸，吸水颗粒8采用氧化钙粉末或胆矾粉末，其中氧化钙遇水后变为氢氧化钙，其摩尔量不变，由此产生的形变系数小，胆矾能够吸水，并在吸水后反应生成蓝色的五水硫酸铜，工作人员可利用这一特性来检验防水层3与无纺布芯层2之间是否含有水分，阻燃颗粒9采用氢氧化铝、氢氧化镁颗粒。
最后应说明的是：以上所述仅为本发明的优选实施例而已，并不用于限制本发明，尽管参照前述实施例对本发明进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (5)

1.一种阻水带用无纺布，包括阻水带主体（1），其特征在于：所述阻水带主体（1）的中部为无纺布芯层（2），所述无纺布芯层（2）的顶面固定贴合连接有防水层（3），所述无纺布芯层（2）的底面贴合连接有阻燃层（4），所述无纺布芯层（2）的两侧固定连接有加固包边（5），所述加固包边（5）分别包覆所述防水层（3）的顶边侧和所述阻燃层（4）的底边侧，所述加固包边（5）上均布设置有铆压冲孔（6），所述阻水带主体（1）的正表面等距离或按照设定的幅度缝合连接有条纹限制线（7），所述防水层（3）与所述无纺布芯层（2）之间均布有吸水颗粒（8），所述无纺布芯层（2）与所述阻燃层（4）之间均布有阻燃颗粒（9），吸水颗粒（8）采用氧化钙粉末或胆矾粉末。
2.根据权利要求1所述的一种阻水带用无纺布，其特征在于：所述无纺布芯层（2）为聚乙烯材料层，所述防水层（3）为沥青类涂层或橡胶类薄膜、所述阻燃层（4）为卤系阻燃剂。
3.根据权利要求1所述的一种阻水带用无纺布，其特征在于：所述加固包边（5）的中部褶皱构成M型结构。
4.根据权利要求1所述的一种阻水带用无纺布，其特征在于：所述加固包边（5）为铝合金材料或铝塑复合材料边。
5.根据权利要求1-4任意一项所述的一种阻水带用无纺布的制备工艺，其特征在于：包括下列步骤：
S1：将无纺布芯层（2）的顶面喷洒含有吸水颗粒（8）的粘接剂，然后将防水层（3）覆盖于其顶面，将无纺布芯层（2）的底面喷洒混合有阻燃颗粒（9）的粘接剂，然后覆盖阻燃层（4）于其底面，构成基本材料；
S2：将两侧粘接有防水层（3）和阻燃层（4）的无纺布芯层（2）在加热状态下压合连接，其压力为每平方厘米一千克至两千克，粘接温度为110摄氏度至130摄氏度；
S3：将压合后的基本材料裁剪成设定宽度的长条带，将两根长条带首尾衔接，其中，无纺布芯层（2）交接部位、覆盖防水层（3）的交接部位，和阻燃层（4）的交接部位交替错开；
S4：将加固包边（5）包覆于无纺布芯层（2）、覆盖防水层（3）和阻燃层（4）的边侧，并通过冲孔机或铆压机将三者固定，初步构成阻水带主体（1）；
S5：按照设定的间距或幅度，对阻水带主体（1）的中部缝纫条纹限制线（7）。
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Application publication date: 20200918