CN111808547A - 一种防腐绝缘胶带及其制备方法 - Google Patents
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Abstract
本发明涉及一种防腐绝缘胶带,包括以下重量份的组分:聚异丁烯橡胶20‑30份、丁基橡胶20‑40份、增粘树脂15‑35份、邻苯二甲酸二丁酯15‑20份、石墨微粉3~5份、硅橡胶10‑20份、纳米氧化锌1‑3份、氨基硅油3‑5份、抗氧剂0.1~0.3份。本发明胶带粘结力和致密性好,具有很好的拉伸强度、抗化学腐蚀、霉菌腐蚀和抗氧化性,防火阻燃,同时具有密闭性能及抗水渗透性。
Description
技术领域
本发明属于胶带制造领域,具体涉及一种防腐绝缘胶带及其制备方法。
背景技术
众所周知,我国目前对能源的需求量随着经济的发展快速增长,天然气、石油的输送管道已经大量长距离铺设,沿途环境条件复杂多变,对管道的要求和防护要求相当高,这就为我们常规的输送管道的防腐工程提出了很高的标准。目前国内管道防腐多采用环氧沥青,沥青的施工和防护均难以达到工程质量的要求,且均匀性、密封性差。本领域技术人员,急需开发出新的阻燃防腐绝缘胶带,降低成本,以满足更高的使用需求。
发明内容
本发明的目的是针对现有的问题,提供了一种防腐绝缘胶带及其制备方法。
本发明采用的技术方案是:一种防腐绝缘胶带,其特征在于,制备方法包括以下步骤:
(1)按照质量配比称取聚异丁烯橡胶20-30份、丁基橡胶20-40份放入密炼机中,温度控制在110 ~ 125℃,密炼20-30分钟,得到橡塑混合物;
(2)按照质量配比称取增粘树脂15-35份、邻苯二甲酸二丁酯15-20份、石墨微粉3~ 5份放入搅拌机中,在 40-45℃的温度下进行搅拌15-30min,搅拌均匀,得到石墨微粉混胶物;
(3)按照质量配比称取硅橡胶10-20份、纳米氧化锌1-3份、氨基硅油3-5份、抗氧剂 0.1~ 0.3份混合均匀,加入密炼机中,升温至90 ~ 110℃,再加入石墨微粉混胶物和橡塑混合物,密炼70 ~ 90min后,降温至70 ~ 80℃,反应20 ~ 30min,将混合物在挤出机中挤出,得到胶层材料;
(4)将步骤(3)中制备的胶层材料在熔化状态下,通过自动涂布机涂布在聚乙烯基膜上,涂胶量为6~ 9g/m³,制得阻燃防腐胶带。
所述胶层材料包括以下重量份的组分:聚异丁烯橡胶20-30份、丁基橡胶20-40份、增粘树脂15-35份、邻苯二甲酸二丁酯15-20份、石墨微粉3~ 5份、硅橡胶10-20份、纳米氧化锌1-3份、氨基硅油3-5份、抗氧剂 0.1 ~ 0.3份。
所述增粘树脂为萜烯树脂。
所述抗氧剂为抗氧剂246与二丁基二硫代氨基甲酸锌的复合抗氧剂。
本发明的有益效果是:本发明的配方科学合理,聚乙烯基膜与胶黏剂层匹配度高,剥离强度高,防腐性能优越,耐高温性能更佳,防火阻燃,同时具有密闭性能及抗水渗透性。
具体实施方式
为了更好地理解本发明的实质,下面通过具体实施例对本发明的技术方案进行进一步的阐述。
实施例1
一种防腐绝缘胶带,制备方法包括以下步骤:
(1)按照质量配比称取聚异丁烯橡胶20份、丁基橡胶20份放入密炼机中,温度控制在110℃,密炼20分钟,得到橡塑混合物;
(2)按照质量配比称取增粘树脂15份、邻苯二甲酸二丁酯15份、石墨微粉3份放入搅拌机中,在 40℃的温度下进行搅拌15min,搅拌均匀,得到石墨微粉混胶物;
(3)按照质量配比称取硅橡胶10份、纳米氧化锌1份、氨基硅油3份、抗氧剂 0.1份混合均匀,加入密炼机中,升温至90℃,再加入石墨微粉混胶物和橡塑混合物,密炼70 min后,降温至70℃,反应20min,将混合物在挤出机中挤出,得到胶层材料;
(4)将步骤(3)中制备的胶层材料在熔化状态下,通过自动涂布机涂布在聚乙烯基膜上,涂胶量为6g/m³,制得阻燃防腐胶带。
一种防腐绝缘胶带,所述胶层材料包括以下重量份的组分:聚异丁烯橡胶20份、丁基橡胶20份、增粘树脂15份、邻苯二甲酸二丁酯15份、石墨微粉3份、硅橡胶10份、纳米氧化锌1份、氨基硅油3份、抗氧剂 0.1份。
实施例2
一种防腐绝缘胶带,制备方法包括以下步骤:
(1)按照质量配比称取聚异丁烯橡胶30份、丁基橡胶40份放入密炼机中,温度控制在125℃,密炼30分钟,得到橡塑混合物;
(2)按照质量配比称取增粘树脂35份、邻苯二甲酸二丁酯20份、石墨微粉5份放入搅拌机中,在 45℃的温度下进行搅拌30min,搅拌均匀,得到石墨微粉混胶物;
(3)按照质量配比称取硅橡胶20份、纳米氧化锌3份、氨基硅油5份、抗氧剂 0.3份混合均匀,加入密炼机中,升温至110℃,再加入石墨微粉混胶物和橡塑混合物,密炼90min后,降温至80℃,反应30min,将混合物在挤出机中挤出,得到胶层材料;
(4)将步骤(3)中制备的胶层材料在熔化状态下,通过自动涂布机涂布在聚乙烯基膜上,涂胶量为9g/m³,制得阻燃防腐胶带。
一种防腐绝缘胶带,所述胶层材料包括以下重量份的组分:聚异丁烯橡胶30份、丁基橡胶40份、增粘树脂35份、邻苯二甲酸二丁酯20份、石墨微粉5份、硅橡胶20份、纳米氧化锌3份、氨基硅油5份、抗氧剂 0.3份。
实施例3
一种防腐绝缘胶带,制备方法包括以下步骤:
(1)按照质量配比称取聚异丁烯橡胶22份、丁基橡胶25份放入密炼机中,温度控制在115℃,密炼23分钟,得到橡塑混合物;
(2)按照质量配比称取增粘树脂16份、邻苯二甲酸二丁酯18份、石墨微粉3份放入搅拌机中,在 40℃的温度下进行搅拌19min,搅拌均匀,得到石墨微粉混胶物;
(3)按照质量配比称取硅橡胶12份、纳米氧化锌1份、氨基硅油3份、抗氧剂 0.1份混合均匀,加入密炼机中,升温至95℃,再加入石墨微粉混胶物和橡塑混合物,密炼75min后,降温至75℃,反应25min,将混合物在挤出机中挤出,得到胶层材料;
(4)将步骤(3)中制备的胶层材料在熔化状态下,通过自动涂布机涂布在聚乙烯基膜上,涂胶量为7g/m³,制得阻燃防腐胶带。
一种防腐绝缘胶带,所述胶层材料包括以下重量份的组分:聚异丁烯橡胶22份、丁基橡胶23份、增粘树脂17份、邻苯二甲酸二丁酯18份、石墨微粉3份、硅橡胶12份、纳米氧化锌1份、氨基硅油3份、抗氧剂 0.1份。
实施例4
一种防腐绝缘胶带,制备方法包括以下步骤:
(1)按照质量配比称取聚异丁烯橡胶26份、丁基橡胶30份放入密炼机中,温度控制在118℃,密炼27分钟,得到橡塑混合物;
(2)按照质量配比称取增粘树脂19份、邻苯二甲酸二丁酯16份、石墨微粉4份放入搅拌机中,在 43℃的温度下进行搅拌24min,搅拌均匀,得到石墨微粉混胶物;
(3)按照质量配比称取硅橡胶16份、纳米氧化锌1份、氨基硅油5份、抗氧剂 0.3份混合均匀,加入密炼机中,升温至102℃,再加入石墨微粉混胶物和橡塑混合物,密炼81min后,降温至78℃,反应26min,将混合物在挤出机中挤出,得到胶层材料;
(4)将步骤(3)中制备的胶层材料在熔化状态下,通过自动涂布机涂布在聚乙烯基膜上,涂胶量为7g/m³,制得阻燃防腐胶带。
2、如权利要求1所述的一种防腐绝缘胶带,所述胶层材料包括以下重量份的组分:聚异丁烯橡胶26份、丁基橡胶30份、增粘树脂19份、邻苯二甲酸二丁酯16份、石墨微粉4份、硅橡胶16份、纳米氧化锌1份、氨基硅油5份、抗氧剂 0.3份。
实施例5
一种防腐绝缘胶带,制备方法包括以下步骤:
(1)按照质量配比称取聚异丁烯橡胶27份、丁基橡胶35份放入密炼机中,温度控制在120℃,密炼26分钟,得到橡塑混合物;
(2)按照质量配比称取增粘树脂24份、邻苯二甲酸二丁酯17份、石墨微粉4份放入搅拌机中,在 43℃的温度下进行搅拌22min,搅拌均匀,得到石墨微粉混胶物;
(3)按照质量配比称取硅橡胶17份、纳米氧化锌2份、氨基硅油3份、抗氧剂 0.2份混合均匀,加入密炼机中,升温至102℃,再加入石墨微粉混胶物和橡塑混合物,密炼82min后,降温至77℃,反应25min,将混合物在挤出机中挤出,得到胶层材料;
(4)将步骤(3)中制备的胶层材料在熔化状态下,通过自动涂布机涂布在聚乙烯基膜上,涂胶量为7g/m³,制得阻燃防腐胶带。
一种防腐绝缘胶带,所述胶层材料包括以下重量份的组分:聚异丁烯橡胶27份、丁基橡胶35份、增粘树脂24份、邻苯二甲酸二丁酯17份、石墨微粉4份、硅橡胶17份、纳米氧化锌2份、氨基硅油3份、抗氧剂 0.2份。
性能测试
对实施例1-5防腐胶带做性能测试,如基材的拉伸强度、基材的断裂伸长率、对管道的剥离强度、耐热老化性能、吸水率等性能,表1性能测试表:
检测项目 | 检测标准 | 实施例1 | 实施例2 | 实施例3 | 实施例4 | 实施例5 |
拉伸强度MPa | GB/T1040 | 64.2 | 64.5 | 64.3 | 64.8 | 64.1 |
断裂伸长率% | GB/T1040 | 9.3 | 9.4 | 9.1 | 9.0 | 9.5 |
剥离强度N/cm | GB/T2792 | 38 | 42 | 41 | 40 | 39 |
耐热老化保持率% | GB/T7141 | 90 | 93 | 92 | 94 | 92 |
吸水率% | ----- | 0.04 | 0.03 | 0.04 | 0.05 | 0.02 |
实施例1-5中的胶带的拉伸强度64MPa,断裂伸长率在9%;剥离强度可达42N/cm,大于标准30N/cm;本发明的胶带粘结性能优越,耐热老化性能较好,能够很好的满足防腐要求。
Claims (4)
1.一种防腐绝缘胶带,其特征在于,制备方法包括以下步骤:
(1)按照质量配比称取聚异丁烯橡胶20-30份、丁基橡胶20-40份放入密炼机中,温度控制在110 ~ 125℃,密炼20-30分钟,得到橡塑混合物;
(2)按照质量配比称取增粘树脂15-35份、邻苯二甲酸二丁酯15-20份、石墨微粉3~ 5份放入搅拌机中,在 40-45℃的温度下进行搅拌15-30min,搅拌均匀,得到石墨微粉混胶物;
(3)按照质量配比称取硅橡胶10-20份、纳米氧化锌1-3份、氨基硅油3-5份、抗氧剂 0.1~ 0.3份混合均匀,加入密炼机中,升温至90 ~ 110℃,再加入石墨微粉混胶物和橡塑混合物,密炼70 ~ 90min后,降温至70 ~ 80℃,反应20 ~ 30min,将混合物在挤出机中挤出,得到胶层材料;
(4)将步骤(3)中制备的胶层材料在熔化状态下,通过自动涂布机涂布在聚乙烯基膜上,涂胶量为6~ 9g/m³,制得阻燃防腐胶带。
2.如权利要求1所述的一种防腐绝缘胶带,其特征在于,所述胶层材料包括以下重量份的组分:聚异丁烯橡胶20-30份、丁基橡胶20-40份、增粘树脂15-35份、邻苯二甲酸二丁酯15-20份、石墨微粉3~ 5份、硅橡胶10-20份、纳米氧化锌1-3份、氨基硅油3-5份、抗氧剂 0.1~ 0.3份。
3.如权利要求1所述的一种防腐绝缘胶带,其特征在于,所述增粘树脂为萜烯树脂。
4.如权利要求1所述的一种防腐绝缘胶带,其特征在于,所述抗氧剂为抗氧剂246与二丁基二硫代氨基甲酸锌的复合抗氧剂。
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CN106281086A (zh) * | 2016-08-19 | 2017-01-04 | 济宁迅大管道防腐材料有限公司 | 一种耐高温聚乙烯防腐胶带及其制备方法 |
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