CN111763091A - 一种高热震耐磨涂料及其制备方法 - Google Patents
一种高热震耐磨涂料及其制备方法 Download PDFInfo
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- 238000000576 coating method Methods 0.000 title claims abstract description 33
- 239000011248 coating agent Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims description 9
- 239000000463 material Substances 0.000 claims abstract description 56
- 230000035939 shock Effects 0.000 claims abstract description 26
- 238000002156 mixing Methods 0.000 claims abstract description 21
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 13
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000011858 nanopowder Substances 0.000 claims abstract description 11
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 9
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000011230 binding agent Substances 0.000 claims abstract description 8
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 8
- 235000019832 sodium triphosphate Nutrition 0.000 claims abstract description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000000498 ball milling Methods 0.000 claims description 20
- 239000002994 raw material Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 7
- RGPUVZXXZFNFBF-UHFFFAOYSA-K diphosphonooxyalumanyl dihydrogen phosphate Chemical group [Al+3].OP(O)([O-])=O.OP(O)([O-])=O.OP(O)([O-])=O RGPUVZXXZFNFBF-UHFFFAOYSA-K 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 4
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 239000011362 coarse particle Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010008 shearing Methods 0.000 abstract description 2
- 239000007767 bonding agent Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
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- 229910052593 corundum Inorganic materials 0.000 description 2
- 239000010431 corundum Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
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- 238000010248 power generation Methods 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
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- 238000007906 compression Methods 0.000 description 1
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Abstract
本发明公开了一种高热震耐磨涂料，由主料和辅料按质量比为92～96：8～4混合而成；主料按质量百分比计包括以下组分：二氧化锆25～40%、结合剂35～45%、硅酸铝粉10～15%、三氧化二铝10～15%、铝粉2～4%、三聚磷酸钠1～3%；辅料按质量百分比计包括以下组分：纳米粉料98～99%、石墨烯2～1%；纳米粉料由纳米氧化锆、纳米三氧化二铝按质量比为1：1组成。本发明采用石墨烯改性的纳米粉料，纳米粉料在强大的剪切力作用下重新分散，附着在其它粗大颗粒表面，从而在制品内产生微细裂纹并形成网状结构，由于这些微细裂纹的存在，吸收了裂纹扩展的能量，从而使得本产品对抵抗制品灾难性破坏有着显著的作用，从而增强了本品的热震稳定性。
Description
技术领域
本发明涉及耐磨涂料相关技术领域，特别涉及一种高热震耐磨涂料及其制备方法。
背景技术
循环流化床锅炉技术是目前公认的清洁煤燃烧技术，由于循环流化床发电锅炉施工体系复杂，施工量大，***管道内煤粉流速高，流量大，因此对耐火材料要求性能优异。但是目前在循环流化床锅炉中通常使用的耐火材料采用高铝熟料或白刚玉原料，水泥含量高，其耐磨性、抗浸蚀性、耐冲刷性及热震稳定性都不能满足循环流化床锅炉技术的要求，使用周期短，需要经常修补或更换，影响循环流化床锅炉的正常运转，消耗大量人力和财力。
本发明人先前申请的中国专利200810243011.7公开了一种高温耐磨涂料，该涂料耐压强度在高温烘烤后比高铝耐磨烧注料或白刚玉耐磨烧注料具有明显的提高，但是由于循环流化床在工作和非工作时间的温度不均，因此对涂料的热震稳定性要求较高，上述涂料在受到环境温度急剧变化仍存在导致涂料产生裂纹，剥落甚至崩溃的问题，现有技术无法满足环境温度急剧变化的热震稳定性要求，有待改进。
发明内容
本发明的目的在于克服上述技术的不足，提供一种高热震耐磨涂料及其制备方法，其热震稳定性能好，使用寿命更长，更适用于火力发电厂循环流化床锅炉使用。
为实现上述发明目的，本发明采用的技术方案为：一种高热震耐磨涂料，其特征在于，由主料和辅料按质量比为92～96：8～4混合而成；
所述主料按质量百分比计包括以下组分：二氧化锆25～40%、结合剂35～45%、硅酸铝粉10～15%、三氧化二铝10～15%、铝粉2～4%、三聚磷酸钠1～3%；
所述辅料按质量百分比计包括以下组分：纳米粉料98～99%、石墨烯2～1%；
所述纳米粉料由纳米氧化锆、纳米三氧化二铝按质量比为1：1组成。
进一步地，所述结合剂为磷酸二氢铝。
进一步地，所述硅酸铝粉的粒径为1250目。
进一步地，所述铝粉的粒径＜75μm。
一种如权利要求1所述的高热震耐磨涂料的制备方法，其特征在于，包括以下步骤：
S1、将主料中的各原料按质量配比计量，混合后放入球磨机进行干法球磨，得到主料并用塑料桶桶装；
S2、将辅料中的各原料按质量配比计量，混合后放入球磨机里进行湿法球磨，烘干后得到辅料并袋装；
S3、施工前，将主料和辅料混合，并加水充分搅拌，得到涂料。
进一步地，S2中所述的湿法球磨的球磨介质为软化水。
本发明的有益效果为：本发明采用上述技术方案后，以耐高温达2000℃以上的二氧化锆为主要原料，使高热震耐磨涂料具有很高的耐压强度，硬度较大，致密度高，具有优异的耐磨性，抗侵蚀性，耐冲刷性，热震稳定性及高粘结性；采用石墨烯改性的纳米粉料，纳米粉料在强大的剪切力作用下重新分散，附着在其它粗大颗粒表面，从而在制品内产生微细裂纹并形成网状结构，由于这些微细裂纹的存在，吸收了裂纹扩展的能量，从而使得本产品对抵抗制品灾难性破坏（热剥落或断裂）有着显著的作用，从而增强了本品的热震稳定性。
具体实施方式
下面将对本发明实施例中的技术方案进行清楚、完整地描述。
实施例1
一种高热震耐磨涂料，由主料和辅料按质量比为92：8混合而成；主料按质量百分比计包括以下组分：二氧化锆25%、结合剂45%、硅酸铝粉10%、三氧化二铝15%、铝粉2%、三聚磷酸钠3%；辅料按质量百分比计包括以下组分：纳米粉料98%、石墨烯2%；其中，纳米粉料由纳米氧化锆、纳米三氧化二铝按质量比为1：1组成。
结合剂为磷酸二氢铝；硅酸铝粉的粒径为1250目；铝粉的粒径＜75μm。
上述高热震耐磨涂料的制备方法，包括以下步骤：
S1、将主料中的各原料按质量配比计量，混合后放入球磨机进行干法球磨，得到主料并用塑料桶桶装；
S2、将辅料中的各原料按质量配比计量，混合后放入球磨机里进行湿法球磨，烘干后得到辅料并袋装；
S3、施工前，将主料和辅料混合，并加水充分搅拌，得到涂料。
其中，S2中的湿法球磨的球磨介质为软化水。
实施例2
一种高热震耐磨涂料，由主料和辅料按质量比为95：5混合而成；主料按质量百分比计包括以下组分：二氧化锆30%、结合剂40%、硅酸铝粉15%、三氧化二铝10%、铝粉3%、三聚磷酸钠2%；辅料按质量百分比计包括以下组分：纳米粉料98.5%、石墨烯1.5%；其中，纳米粉料由纳米氧化锆、纳米三氧化二铝按质量比为1：1组成。
结合剂为磷酸二氢铝；硅酸铝粉的粒径为1250目；铝粉的粒径＜75μm。
上述高热震耐磨涂料的制备方法，包括以下步骤：
S1、将主料中的各原料按质量配比计量，混合后放入球磨机进行干法球磨，得到主料并用塑料桶桶装；
S2、将辅料中的各原料按质量配比计量，混合后放入球磨机里进行湿法球磨，烘干后得到辅料并袋装；
S3、施工前，将主料和辅料混合，并加水充分搅拌，得到涂料。
其中，S2中的湿法球磨的球磨介质为软化水。
实施例3
一种高热震耐磨涂料，由主料和辅料按质量比为96：4混合而成；主料按质量百分比计包括以下组分：二氧化锆40%、结合剂35%、硅酸铝粉10%、三氧化二铝10%、铝粉4%、三聚磷酸钠1%；辅料按质量百分比计包括以下组分：纳米粉料99%、石墨烯1%；其中，纳米粉料由纳米氧化锆、纳米三氧化二铝按质量比为1：1组成。
结合剂为磷酸二氢铝；硅酸铝粉的粒径为1250目；铝粉的粒径＜75μm。
上述高热震耐磨涂料的制备方法，包括以下步骤：
S1、将主料中的各原料按质量配比计量，混合后放入球磨机进行干法球磨，得到主料并用塑料桶桶装；
S2、将辅料中的各原料按质量配比计量，混合后放入球磨机里进行湿法球磨，烘干后得到辅料并袋装；
S3、施工前，将主料和辅料混合，并加水充分搅拌，得到涂料。
其中，S2中的湿法球磨的球磨介质为软化水。
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。
Claims (6)
1.一种高热震耐磨涂料，其特征在于，由主料和辅料按质量比为92～96：8～4混合而成；
所述主料按质量百分比计包括以下组分：二氧化锆25～40%、结合剂35～45%、硅酸铝粉10～15%、三氧化二铝10～15%、铝粉2～4%、三聚磷酸钠1～3%；
所述辅料按质量百分比计包括以下组分：纳米粉料98～99%、石墨烯2～1%；
所述纳米粉料由纳米氧化锆、纳米三氧化二铝按质量比为1：1组成。
2.根据权利要求1所述的一种高热震耐磨涂料，其特征在于，所述结合剂为磷酸二氢铝。
3.根据权利要求1所述的一种高热震耐磨涂料，其特征在于，所述硅酸铝粉的粒径为1250目。
4.根据权利要求1所述的一种高热震耐磨涂料，其特征在于，所述铝粉的粒径＜75μm。
5.一种如权利要求1所述的高热震耐磨涂料的制备方法，其特征在于，包括以下步骤：
S1、将主料中的各原料按质量配比计量，混合后放入球磨机进行干法球磨，得到主料并用塑料桶桶装；
S2、将辅料中的各原料按质量配比计量，混合后放入球磨机里进行湿法球磨，烘干后得到辅料并袋装；
S3、施工前，将主料和辅料混合，并加水充分搅拌，得到涂料。
6.根据权利要求5所述的高热震耐磨涂料的制备方法，其特征在于，S2中所述的湿法球磨的球磨介质为软化水。
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