CN117050568A - 一种汽轮机蒸汽通流侧表面的疏水涂料 - Google Patents
一种汽轮机蒸汽通流侧表面的疏水涂料 Download PDFInfo
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Abstract
一种汽轮机蒸汽通流侧表面的疏水涂料，包括如下重量份数的组分，乙烯基树脂35~75份、乙烯基苯12~25份、氧化铁红1~6份、铝粉1~5份、碳纳米管0.1~4份、锌粉0.2~3份、磷酸锌2~7份、滑石粉1~4份、纳米二氧化硅粉末0.2~3份、乙醇1.5~6.5份、丁醇0.2~2.2份、异丙醇0.2~3份，本发明提供的疏水涂料满足对防腐蚀涂层限制污染物的要求，使用效果稳定，具有较好的疏水性，防腐蚀效果优异，不影响电厂蒸汽水质。
Description
技术领域
本发明属于涂料技术领域，具体涉及一种汽轮机蒸汽通流侧表面的疏水涂料。
背景技术
涂料是指涂覆于物体表面并在一定条件下形成薄膜、对被涂覆物体起保护及装饰作用的材料。
国内的现有很多涂料虽然都具有较好的防腐蚀效果，但其通常都含有或多、或少的包括氟、硫、其它卤素、硫化物、氟化物、氯化物和/或亚硝酸盐等在内的有害物。含有这些有害物的抗腐蚀涂料在用于一般物体保护时基本不会有什么特别的影响，但当其用于高精密透平设备-例如汽轮机组的流体通路设备保护时，涂料中的有害物释放、融入透平设备的做功流体-蒸汽中，直接降低做功流体的品质，并在汽轮机组转子和/或静子部件等沉积、聚集，从而对高精密的做功设备会直接造成应力腐蚀；也就是说，国内的现有抗腐蚀涂料因含有限制元素(包括但不限于氟、硫和/或其它卤素等)及有害物(包括但不限于氯化物、氟化物、硫化物和/或亚硝酸盐等)等，其难以满足RCC-M(即《压水堆核岛机械设备设计和建造规则》)中对汽轮机在＜300℃温度下运行的水液/蒸汽通路压力设备内表面防腐蚀涂层规定的技术要求。同时，为保证透平装备的服役安全性，通流侧涂层应缓慢、粉状脱落，涂层应尽可能薄。为满足上述限制元素和涂层厚度的要求，相关涂料原材料选用受到极大限制，所得到的最终料防护性能也受到较大影响，采用上述涂层保护的汽轮机蒸汽通流侧表面在安装期间也会出现锈蚀，影响设备的安全运行。
综上所述，现有抗腐蚀涂料虽然满足限制元素要求，但是以牺牲涂层为代价，涂层性能难以满足高精密透平设备-例如汽轮机组的流体通路设备全流程防护要求，长期以来，对高精密透平设备的发展造成技术制约。基于此，有待研发一种能够完全满足高精密透平设备防护要求的抗腐蚀涂料。
发明内容
本发明提供一种汽轮机蒸汽通流侧表面的疏水涂料，目的是克服现有抗腐蚀涂层性能难以满足汽轮机组的流体通路设备全流程防护要求的缺陷，研发一种能够完全满足高精密透平设备防护要求的抗腐蚀涂料。
本发明的技术方案是这样实现的：
一种汽轮机蒸汽通流侧表面的疏水涂料，按重量份数计，包括乙烯基树脂35～75份、乙烯基苯12～25份、氧化铁红1～6份、铝粉1～5份、碳纳米管0.1～4份、锌粉0.2～3份、磷酸锌2～7份、滑石粉1～4份、纳米二氧化硅粉末0.2～3份、乙醇1.5～6.5份、丁醇0.2～2.2份、异丙醇0.2～3份。
其中，上述疏水涂料优选按重量份数计的乙烯基树脂49.4份、乙烯基苯23.2份、氧化铁红2.3份、铝粉3.2份，碳纳米管1.6份、锌粉2.2份、磷酸锌5份、滑石粉3份、纳米二氧化硅粉末2.6份、乙醇5.5份、丁醇1.1份、异丙醇0.9份。
其中，碳纳米管的内径为3-6nm，外径为8-15nm，长度为2-10μm；纳米二氧化硅粉末的直径为5-40nm。
本发明提供的疏水涂料用于汽轮机蒸汽通流侧表面。
相对于现有技术，本发明具有以下优势：本发明提供的疏水涂料，有效满足RCC-M对防腐蚀涂层中的氯化物、氟、其它卤素和硫等提出的限制要求，使用效果稳定。纳米材料与多种原料相互配合，改善了各原料的相容性，提高了涂层表面的疏水性能，使得各原料性能协同促进，涂层干燥后，强度高，疏水性能和耐蚀性好，汽轮机设备长期运行中，涂层缓慢粉化脱落，不影响电厂蒸汽水质。
本发明通过实施例1-3提供的疏水材料结合空白样作出实验结果对比，具体性能参数见表1。
表1
具体实施方式
需要说明的是，在不冲突的情况下，本发明中的实施例及实施例中的特征可以相互组合。
下面结合实施例来详细说明本发明。
实施例1
一种汽轮机蒸汽通流侧表面的疏水涂料，包括如下重量份数的组分，乙烯基树脂58.8份、乙烯基苯17.2份、氧化铁红3.2份、铝粉2.1份，碳纳米管3.5份、锌粉1.4份、磷酸锌4.4份、滑石粉2.6份、纳米二氧化硅粉末1.8份、乙醇3.2份、丁醇1.5份、异丙醇0.3份。
其中，碳纳米管的内径为3-6nm，外径为8-15nm，长度为2-10μm；纳米二氧化硅粉末的直径为5-40nm。
实施例2
一种汽轮机蒸汽通流侧表面的疏水涂料，包括如下重量份数的组分，乙烯基树脂65.5份、乙烯基苯12.8份、氧化铁红1.4份、铝粉1.5份，碳纳米管0.6份、锌粉0.3份、磷酸锌6.8份、滑石粉3.2份、纳米二氧化硅粉末2.9份、乙醇1.8份、丁醇2.1份、异丙醇1.1份。
其中，碳纳米管的内径为3-6nm，外径为8-15nm，长度为2-10μm；纳米二氧化硅粉末的直径为5-40nm。
实施例3
一种汽轮机蒸汽通流侧表面的疏水涂料，包括如下重量分数的组分，乙烯基树脂71.8份、乙烯基苯13.2份、氧化铁红5.3份、铝粉1.1份，碳纳米管0.4份、锌粉2.2份、磷酸锌2.1份、滑石粉1.2份、纳米二氧化硅粉末0.3份、乙醇1.6份、丁醇0.3份、异丙醇0.5份。
其中，碳纳米管的内径为3-6nm，外径为8-15nm，长度为2-10μm；纳米二氧化硅粉末的直径为5-40nm。
以上所述仅为本发明较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
Claims (5)
1.一种汽轮机蒸汽通流侧表面的疏水涂料，其特征在于：所述疏水涂料按重量份数计，包括乙烯基树脂35~75份、乙烯基苯12~25份、氧化铁红1~6份、铝粉1~5份、碳纳米管0.1~4份、锌粉0.2~3份、磷酸锌2~7份、滑石粉1~4份、纳米二氧化硅粉末0.2~3份、乙醇1.5~6.5份、丁醇0.2~2.2份、异丙醇0.2~3份。
2.根据权利要求1所述的汽轮机蒸汽通流侧表面的疏水涂料，其特征在于：所述疏水涂料按重量份数计乙烯基树脂49.4份、乙烯基苯23.2份、氧化铁红2.3份、铝粉3.2份，碳纳米管1.6份、锌粉2.2份、磷酸锌5份、滑石粉3份、纳米二氧化硅粉末2.6份、乙醇5.5份、丁醇1.1份、异丙醇0.9份。
3.根据权利要求1或2所述的汽轮机蒸汽通流侧表面的疏水涂料，其特征在于：所述碳纳米管的内径为3-6nm，外径为8-15nm，长度为2-10µm。
4.根据权利要求1或2所述的汽轮机蒸汽通流侧表面的疏水涂料，其特征在于：所述纳米二氧化硅粉末的直径为5-40nm。
5.根据权利要求1或2所述的汽轮机蒸汽通流侧表面的疏水涂料，其特征在于：所述疏水涂料用于汽轮机蒸汽通流侧表面。
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| CN102492351A (zh) * | 2011-12-19 | 2012-06-13 | 北方涂料工业研究设计院 | 导电超疏水涂料及其生产方法 |
| CN108047894A (zh) * | 2017-12-04 | 2018-05-18 | 东方电气集团东方汽轮机有限公司 | 一种抗腐蚀涂料及其用途 |
| CN114790363A (zh) * | 2022-04-01 | 2022-07-26 | 哈尔滨工程大学 | 基于碳纳米管和二氧化硅复合的超疏水涂层及其制备方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492351A (zh) * | 2011-12-19 | 2012-06-13 | 北方涂料工业研究设计院 | 导电超疏水涂料及其生产方法 |
| CN108047894A (zh) * | 2017-12-04 | 2018-05-18 | 东方电气集团东方汽轮机有限公司 | 一种抗腐蚀涂料及其用途 |
| CN114790363A (zh) * | 2022-04-01 | 2022-07-26 | 哈尔滨工程大学 | 基于碳纳米管和二氧化硅复合的超疏水涂层及其制备方法 |
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