CN106281092A - 一种地下管道用聚乙烯防腐胶带 - Google Patents
一种地下管道用聚乙烯防腐胶带 Download PDFInfo
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Abstract
本发明公开了一种地下管道用聚乙烯防腐胶带，其胶粘剂层由以下组分制成：丁基橡胶30‑45份、丁腈橡胶10‑15份、聚氨酯丙烯酸酯15‑25份、环氧树脂25‑35份、1,6‑己二醇二丙烯酸酯10‑15份、FRP废弃物5‑10份、硬脂酸季戊四醇酯5‑10份、邻苯二甲酸二丁酯5‑10份、炭黑10‑15份、石墨烯5‑10份、膨胀珍珠岩1‑5份、羟乙基纤维素1‑5份、二硫化四甲基秋兰姆0.5‑1份、聚丙烯酰胺0.5‑3份、抗氧化剂1‑3份。本发明防腐胶带制备方法简单，易于实施，具有良好的拉伸强度和断裂伸长率，剥离强度和耐热老化率高，防腐性能优良，适合于地下管道使用。
Description
技术领域
本发明涉及一种防腐胶带，具体涉及一种地下管道用聚乙烯防腐胶带。
背景技术
近年来，随着我国石油化工业的迅速发展及城市公用设施建设速度的提高，我国地下金属管道的建设也在飞速的发展。由于地下管道大部分都是金属材质，在土壤和细菌等因素作用下很容易受到腐蚀。地下管道腐蚀给人类和社会环境会带来巨大的经济损失和社会安全，因此新管道的建设和已有管道的维护，给防腐工程提出了重要的任务。
目前，地下管道的防腐主要通过防腐胶带来实现，聚乙烯防腐胶带是常用的一种地下管道用防腐胶带。聚乙烯防腐胶带的防腐体系为：底漆+防腐带+保护带，具体施工工艺大体包括以下步骤：基材表面的处理、涂刷底漆、缠胶带。聚乙烯胶带具有良好的抗冲击能力和耐静压力，但其抗土壤应力不好，导致粘结力下降、起泡，影响防腐性能。
发明内容
针对现有技术存在的不足，本发明提供了一种地下管道用聚乙烯防腐胶带，该胶带具有良好的力学性能和防腐性能，适合地下管道使用。
本发明还提供了该聚乙烯防腐胶带的制备方法，该方法制备简单、易于实施，所得产品具有良好的性能，具有工业化应用前景。
本发明具体技术方案如下：
一种地下管道用聚乙烯防腐胶带，该防腐胶带由聚乙烯基膜和涂布在聚乙烯基膜上的胶粘剂层组成；所述胶粘剂层由以下重量份的组分制成：丁基橡胶30-45份、丁腈橡胶10-15份、聚氨酯丙烯酸酯15-25份、环氧树脂25-35份、1,6-己二醇二丙烯酸酯10-15份、FRP废弃物（80-120目）5-10份、硬脂酸季戊四醇酯5-10份、邻苯二甲酸二丁酯5-10份、炭黑10-15份、石墨烯5-10份、膨胀珍珠岩1-5份、羟乙基纤维素1-5份、二硫化四甲基秋兰姆0.5-1份、聚丙烯酰胺0.5-3份、抗氧化剂1-3份。
优选的，所述胶粘剂层由以下重量份的组分制成：丁基橡胶35份、丁腈橡胶12份、聚氨酯丙烯酸酯18份、环氧树脂32份、1,6-己二醇二丙烯酸酯13份、FRP废弃物（80-120目）9份、硬脂酸季戊四醇酯8份、邻苯二甲酸二丁酯6份、炭黑12份、石墨烯7份、膨胀珍珠岩3份、羟乙基纤维素2份、二硫化四甲基秋兰姆0.6份、聚丙烯酰胺1.5份、抗氧化剂2份。
进一步的，本发明聚乙烯基膜优选由以下重量百分比的组分制成：相对分子质量6万-10万的高密度聚乙烯50-70%，氯磺化聚乙烯15-30%，相对分子质量20-30万的高密度聚乙烯5-15%，分子量150-250KDa的壳聚糖5-10%、己二酸二辛酯1-5%。本发明聚乙烯基膜由多种组分混合制成，通过各组分的搭配，所得基膜具有更好的拉伸强度和断裂伸长率。
优选的，上述聚乙烯基膜由以下重量百分比的组分制成：相对分子质量6万-10万的的高密度聚乙烯62%，氯磺化聚乙烯18%，相对分子质量20-30万的高密度聚乙烯10%，分子量150-250KDa的壳聚糖8%、己二酸二辛酯2%。
进一步的，聚乙烯基膜的厚度为0.3-0.4mm。
进一步的，所述氯磺化聚乙烯的牌号可以为CSM3550或CSM3570；所述环氧树脂的牌号可以为E-55或E-44。
进一步的，所述聚丙烯酸酯的官能度为1-3，在25℃下的粘度为2000-8000mPa·S。
进一步的，所述聚丙烯酰胺的重均分子量为200万-500万。
进一步的，所述FRP废弃物为玻璃纤维增强塑料（GFRP）的废品或边角料，其粒径为80-120目。
进一步的，所述抗氧化剂为抗氧剂1010或抗氧剂DLTP。
本发明还提供了该地下管道用聚乙烯防腐胶带的制备方法，包括以下步骤：
（1）取聚乙烯基膜各组分，混合均匀，然后加入挤出机中，在150-180℃下挤出，得聚乙烯基膜；
（2）取胶粘剂层各组分，在140-180℃下捏合，得胶泥；
（3）将上述胶泥加入挤出机中，熔融挤出，得胶粘剂；
（4）将胶粘剂加热熔融，涂布到聚乙烯基膜上，得地下管道用聚乙烯防腐胶带。
上述步骤（2）中，各组分在140-180℃捏合1-2h。
上述步骤（4）中，胶粘剂在聚乙烯基膜上的涂布量为300～500g/m3。
本发明防腐胶带由聚乙烯基膜和复合在其上的胶粘剂层组成，制备方法简单，易于实施。该防腐胶带具有良好的拉伸强度和断裂伸长率，剥离强度和耐热老化率高，防腐性能优良，适合于地下管道使用。
具体实施方式
下面通过具体的实施例对本发明进行进一步说明，但是，应当理解为，这些实施例仅仅是用于更详细具体地说明之用，而不应理解为用于以任何形式限制本发明。
下述实施例中，所用的各原料均能从市场上购买得到。例如，牌号为CSM3550或CSM3570的氯磺化聚乙烯可以购自上海修远化工有限公司；牌号为E-55或E-44的环氧树脂可以购自北京德鑫恒达商贸有限公司；聚丙烯酸酯可以购自北京华益化工有限公司；聚氨酯丙烯酸酯官能度为1-3，25℃的粘度为2000-8000mPa·S，可以购自上海佑季化工材料有限公司，型号可以是UT20064、UnicrylR-7495、UnicrylR-7493或UnicrylR-7107中的一种或多种；聚丙烯酰胺可以购自巩义市龙达水处理材料有限公司；高密度聚乙烯可以购自余姚市华佳化工有限公司、东 莞 市 龙 创 塑 胶 有 限 公 司、苏州昌仁工程塑胶有限公司等。
实施例1
本发明地下管道用聚乙烯防腐胶带，由聚乙烯基膜和涂布在聚乙烯基膜上的胶粘剂层组成；所述聚乙烯基膜为相对密度为0.941~0.965的高密度聚乙烯片材，厚度为0.4mm；所述胶粘剂层由以下重量份的组分制成：丁基橡胶35份、丁腈橡胶12份、聚氨酯丙烯酸酯18份、环氧树脂E-55 32份、1,6-己二醇二丙烯酸酯13份、FRP废弃物（80-120目）9份、硬脂酸季戊四醇酯8份、邻苯二甲酸二丁酯6份、炭黑12份、石墨烯7份、膨胀珍珠岩3份、羟乙基纤维素2份、二硫化四甲基秋兰姆0.6份、聚丙烯酰胺1.5份、抗氧化剂1010 2份。其中，聚氨酯丙烯酸酯的官能度为1-3,25℃的粘度为4000-6000mPa·S, 聚丙烯酰胺的重均分子量为200万-300万。
制备方法包括以下步骤：
（1）取玻璃纤维增强塑料（GFRP）生产过程的边角料或者报废的玻璃纤维增强塑料制品，将其磨碎至80-120目，得FRP废弃物粉末；
（2）按配比称取丁基橡胶、丁腈橡胶、聚氨酯丙烯酸酯、环氧树脂E-55、1,6-己二醇二丙烯酸酯、FRP废弃物粉末（80-120目）、硬脂酸季戊四醇酯、邻苯二甲酸二丁酯、炭黑、石墨烯、膨胀珍珠岩、羟乙基纤维素、二硫化四甲基秋兰姆、聚丙烯酰胺、抗氧化剂1010，加入捏合机中，在140-180℃下捏合1-2h，得胶泥；
（3）将上述胶泥加入挤出机中，熔融挤出，得胶粘剂；
（4）将胶粘剂加热至熔融状态，通过自动涂布机涂布到聚乙烯基膜上，涂布量为400g/m3；
（5）将涂胶粘剂后的聚乙烯基膜切成条带状、卷盘，即得地下管道用聚乙烯防腐胶带。
实施例2
本发明地下管道用聚乙烯防腐胶带，由聚乙烯基膜和涂布在聚乙烯基膜上的胶粘剂层组成；所述聚乙烯基膜为相对密度为0.941~0.965的高密度聚乙烯片材，厚度为0.4mm；所述胶粘剂层由以下重量份的组分制成：丁基橡胶30份、丁腈橡胶15份、聚氨酯丙烯酸酯15份、环氧树脂E-55 35份、1,6-己二醇二丙烯酸酯10份、FRP废弃物（80-120目）10份、硬脂酸季戊四醇酯5份、邻苯二甲酸二丁酯10份、炭黑10份、石墨烯10份、膨胀珍珠岩1份、羟乙基纤维素5份、二硫化四甲基秋兰姆0.5份、聚丙烯酰胺3份、抗氧化剂1010 1份。其中，聚氨酯丙烯酸酯的官能度为1-3,25℃的粘度为6000-8000mPa·S, 聚丙烯酰胺的重均分子量为300万-400万。
制备方法同实施例1。
实施例3
本发明地下管道用聚乙烯防腐胶带，由聚乙烯基膜和涂布在聚乙烯基膜上的胶粘剂层组成；所述聚乙烯基膜为相对密度为0.941~0.965的高密度聚乙烯片材，厚度为0.4mm；所述胶粘剂层由以下重量份的组分制成：丁基橡胶45份、丁腈橡胶10份、聚氨酯丙烯酸酯25份、环氧树脂E-55 25份、1,6-己二醇二丙烯酸酯15份、FRP废弃物（80-120目）5份、硬脂酸季戊四醇酯10份、邻苯二甲酸二丁酯5份、炭黑15份、石墨烯5份、膨胀珍珠岩5份、羟乙基纤维素1份、二硫化四甲基秋兰姆1份、聚丙烯酰胺0.5份、抗氧化剂DLTP 3份。其中，聚氨酯丙烯酸酯的官能度为1-3，25℃的粘度为2000-4000mPa·S，聚丙烯酰胺的重均分子量为400万-500万。
制备方法同实施例1。
实施例4
本发明地下管道用聚乙烯防腐胶带，由聚乙烯基膜和涂布在聚乙烯基膜上的胶粘剂层组成；所述聚乙烯基膜厚度为0.4mm，由以下重量百分比的组分制成：相对分子质量6万-10万的的高密度聚乙烯62%，氯磺化聚乙烯CSM3550 18%，相对分子质量20-30万的高密度聚乙烯10%，分子量150-250KDa的壳聚糖8%、己二酸二辛酯2%；所述胶粘剂层由以下重量份的组分制成：丁基橡胶35份、丁腈橡胶12份、聚氨酯丙烯酸酯18份、环氧树脂E-55 32份、1,6-己二醇二丙烯酸酯13份、FRP废弃物（80-120目）9份、硬脂酸季戊四醇酯8份、邻苯二甲酸二丁酯6份、炭黑12份、石墨烯7份、膨胀珍珠岩3份、羟乙基纤维素2份、二硫化四甲基秋兰姆0.6份、聚丙烯酰胺1.5份、抗氧化剂1010 2份。其中，聚氨酯丙烯酸酯的官能度为1-3,25℃的粘度为4000-6000mPa·S, 聚丙烯酰胺的重均分子量为200万-300万。
制备方法包括以下步骤：
（1）按配比称取相对分子质量6万-10万的的高密度聚乙烯、氯磺化聚乙烯CSM3550、相对分子质量20-30万的高密度聚乙烯、分子量150-250KDa的壳聚糖、己二酸二辛酯，充分混合均匀，然后加入挤出机中，在150-180℃下挤出，得聚乙烯基膜；
（2）取玻璃纤维增强塑料（GFRP）生产过程的边角料或者报废的玻璃纤维增强塑料制品，将其磨碎至80-120目，得FRP废弃物粉末；
（3）按配比称取丁基橡胶、丁腈橡胶、聚氨酯丙烯酸酯、环氧树脂E-55、1,6-己二醇二丙烯酸酯、FRP废弃物粉末（80-120目）、硬脂酸季戊四醇酯、邻苯二甲酸二丁酯、炭黑、石墨烯、膨胀珍珠岩、羟乙基纤维素、二硫化四甲基秋兰姆、聚丙烯酰胺、抗氧化剂1010，加入捏合机中，在140-180℃下捏合1-2h，得胶泥；
（4）将上述胶泥加入挤出机中，熔融挤出，得胶粘剂；
（5）将胶粘剂加热至熔融状态，通过自动涂布机涂布到聚乙烯基膜上，涂布量为400g/m3；
（6）将涂胶粘剂后的聚乙烯基膜切成条带状、卷盘，即得地下管道用聚乙烯防腐胶带。
实施例5
本发明地下管道用聚乙烯防腐胶带，由聚乙烯基膜和涂布在聚乙烯基膜上的胶粘剂层组成；所述聚乙烯基膜厚度为0.4mm，由以下重量百分比的组分制成：相对分子质量6万-10万的的高密度聚乙烯70%，氯磺化聚乙烯CSM3570 15%，相对分子质量20-30万的高密度聚乙烯5%，分子量150-250KDa的壳聚糖9%、己二酸二辛酯1%；所述胶粘剂层由以下重量份的组分制成：丁基橡胶30份、丁腈橡胶15份、聚氨酯丙烯酸酯15份、环氧树脂E-44 35份、1,6-己二醇二丙烯酸酯10份、FRP废弃物（80-120目）10份、硬脂酸季戊四醇酯5份、邻苯二甲酸二丁酯10份、炭黑10份、石墨烯10份、膨胀珍珠岩1份、羟乙基纤维素5份、二硫化四甲基秋兰姆0.5份、聚丙烯酰胺3份、抗氧化剂1010 1份。其中，聚氨酯丙烯酸酯的官能度为1-3，25℃的粘度为6000-8000mPa·S, 聚丙烯酰胺的重均分子量为300万-400万。
制备方法同实施例4。
实施例6
本发明地下管道用聚乙烯防腐胶带，由聚乙烯基膜和涂布在聚乙烯基膜上的胶粘剂层组成；所述聚乙烯基膜厚度为0.4mm，由以下重量百分比的组分制成：相对分子质量6万-10万的的高密度聚乙烯50%，氯磺化聚乙烯CSM3550 30%，相对分子质量20-30万的高密度聚乙烯10%，分子量150-250KDa的壳聚糖5%、己二酸二辛酯5%；所述胶粘剂层由以下重量份的组分制成：丁基橡胶45份、丁腈橡胶10份、聚氨酯丙烯酸酯25份、环氧树脂E-55 25份、1,6-己二醇二丙烯酸酯15份、FRP废弃物（80-120目）5份、硬脂酸季戊四醇酯10份、邻苯二甲酸二丁酯5份、炭黑15份、石墨烯5份、膨胀珍珠岩5份、羟乙基纤维素1份、二硫化四甲基秋兰姆1份、聚丙烯酰胺0.5份、抗氧化剂DLTP 3份。其中，聚氨酯丙烯酸酯的官能度为1-3,25℃的粘度为2000-4000mPa·S, 聚丙烯酰胺的重均分子量为400万-500万。
制备方法同实施例4。
对比例
按照实施例4的配方和方法制备地下管道用聚乙烯防腐胶带，不同的是：胶粘剂层中不含聚氨酯丙烯酸酯、石墨烯、聚丙烯酰胺，即胶粘剂层重量份组分为：丁基橡胶35份、丁腈橡胶12份、环氧树脂E-55 32份、1,6-己二醇二丙烯酸酯13份、FRP废弃物（80-120目）9份、硬脂酸季戊四醇酯8份、邻苯二甲酸二丁酯6份、炭黑12份、膨胀珍珠岩3份、羟乙基纤维素2份、二硫化四甲基秋兰姆0.6份、抗氧化剂1010 2份。
为了验证本发明防腐胶带的性能，进行以下测试：
1、耐酸、碱、盐腐蚀测试
选取平整无锈的低碳钢条(规格：200mm×25mm×6mm)，分别包覆实施例及对比例的防腐胶带，包覆防腐胶带后的低碳钢条分别浸泡于10%HCl、10%NaOH、10%NaCl溶液中，并保持温度60℃，10d后观察其表面变化。结果见下表1。
表1
2、力学性能测试
分别检测实施例以及对比例所述的防腐胶带的拉伸强度MPa（GB/T1040）、断裂伸长率（GB/T1040）、剥离强度N/cm（GB/T2792）、耐热老化保持率%（GB/T7141），结果见下表2。
表2
Claims (10)
1.一种地下管道用聚乙烯防腐胶带，其特征是：由聚乙烯基膜和涂布在聚乙烯基膜上的胶粘剂层组成；所述胶粘剂层由以下重量份的组分制成：丁基橡胶30-45份、丁腈橡胶10-15份、聚氨酯丙烯酸酯15-25份、环氧树脂25-35份、1,6-己二醇二丙烯酸酯10-15份、FRP废弃物5-10份、硬脂酸季戊四醇酯5-10份、邻苯二甲酸二丁酯5-10份、炭黑10-15份、石墨烯5-10份、膨胀珍珠岩1-5份、羟乙基纤维素1-5份、二硫化四甲基秋兰姆0.5-1份、聚丙烯酰胺0.5-3份、抗氧化剂1-3份。
2.根据权利要求1所述的地下管道用聚乙烯防腐胶带，其特征是：所述胶粘剂层由以下重量份的组分制成：丁基橡胶35份、丁腈橡胶12份、聚氨酯丙烯酸酯18份、环氧树脂32份、1,6-己二醇二丙烯酸酯13份、FRP废弃物9份、硬脂酸季戊四醇酯8份、邻苯二甲酸二丁酯6份、炭黑12份、石墨烯7份、膨胀珍珠岩3份、羟乙基纤维素2份、二硫化四甲基秋兰姆0.6份、聚丙烯酰胺1.5份、抗氧化剂2份。
3.根据权利要求1或2所述的地下管道用聚乙烯防腐胶带，其特征是：所述聚乙烯基膜由以下重量百分比的组分制成：相对分子质量6万-10万的高密度聚乙烯50-70%，氯磺化聚乙烯15-30%，相对分子质量20-30万的高密度聚乙烯5-15%，分子量150-250KDa的壳聚糖5-10%、己二酸二辛酯1-5%。
4.根据权利要求3所述的地下管道用聚乙烯防腐胶带，其特征是：所述聚乙烯基膜由以下重量百分比的组分制成：相对分子质量6万-10万的的高密度聚乙烯62%，氯磺化聚乙烯18%，相对分子质量20-30万的高密度聚乙烯10%，分子量150-250KDa的壳聚糖8%、己二酸二辛酯2%。
5.根据权利要求1、3或4所述的地下管道用聚乙烯防腐胶带，其特征是：聚乙烯基膜的厚度为0.3-0.4mm。
6.根据权利要求3或4所述的地下管道用聚乙烯防腐胶带，其特征是：所述氯磺化聚乙烯的牌号为CSM3550或CSM3570。
7.根据权利要求1所述的地下管道用聚乙烯防腐胶带，其特征是：所述环氧树脂的牌号为E-55或E-44；所述聚氨酯丙烯酸酯在25℃的粘度为2000-8000mPa·S；所述聚丙烯酰胺的重均分子量200-500万。
8.根据权利要求1所述的地下管道用聚乙烯防腐胶带，其特征是：所述FRP废弃物为玻璃纤维增强塑料废品或边角料，其粒径为80-120目。
9.根据权利要求1所述的地下管道用聚乙烯防腐胶带，其特征是：所述抗氧化剂为抗氧剂1010或抗氧剂DLTP。
10.根据权利要求1所述的地下管道用聚乙烯防腐胶带，其特征是：胶粘剂在聚乙烯基膜上的涂布量为300～500g/m3。
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107033801A (zh) * | 2017-04-18 | 2017-08-11 | 海盐海诚胶粘材料有限公司 | 一种阻燃热敏变色胶带 |
| CN108102595A (zh) * | 2018-01-19 | 2018-06-01 | 铁科腾跃科技有限公司 | 一种纤维复合材料增强的修补胶及其制备方法 |
| CN109096626A (zh) * | 2018-07-26 | 2018-12-28 | 合肥远科服装设计有限公司 | 一种发泡橡胶鞋底专用胶料及其制备方法 |
| CN113736377A (zh) * | 2021-09-16 | 2021-12-03 | 济宁迅大管道防腐材料有限公司 | 埋地钢质管道聚乙烯防腐带 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107033801A (zh) * | 2017-04-18 | 2017-08-11 | 海盐海诚胶粘材料有限公司 | 一种阻燃热敏变色胶带 |
| CN108102595A (zh) * | 2018-01-19 | 2018-06-01 | 铁科腾跃科技有限公司 | 一种纤维复合材料增强的修补胶及其制备方法 |
| CN109096626A (zh) * | 2018-07-26 | 2018-12-28 | 合肥远科服装设计有限公司 | 一种发泡橡胶鞋底专用胶料及其制备方法 |
| CN113736377A (zh) * | 2021-09-16 | 2021-12-03 | 济宁迅大管道防腐材料有限公司 | 埋地钢质管道聚乙烯防腐带 |
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