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A platform for research: civil engineering, architecture and urbanism
High-thermal-shock-resistance wear-resistant coating and preparation method thereof
The invention discloses a high-thermal-shock-resistance wear-resistant coating which is prepared by mixing a main material and an auxiliary material in a mass ratio of (92-96): (8-4). The main material comprises the following components in percentage by mass: 25-40% of zirconium dioxide; 35-45% of a binding agent; 10-15% of aluminum silicate powder; 10-15% of aluminum oxide; 2-4% of aluminum powder; and 1-3% of sodium tripolyphosphate. The auxiliary material comprises the following components in percentage by mass: 98-99% of nano powder; and 2-1% of graphene. The nano powder is composed of nano zirconium oxide and nano aluminum oxide according to a mass ratio of 1: 1. According to the high-thermal-shock-resistance wear-resistant coating of the invention, the graphene modified nano powder is adopted; the nano powder is re-dispersed under the action of strong shearing force and are attached onto the surfaces of other large particles, and therefore, micro-cracks can be generated in the product and a network structure can be formed; due to the existence of the micro-cracks, crack propagation energy can be absorbed, such that the product provides significant effects for product catastrophic damage resistance, and therefore, the thermal shock stability of the product can be enhanced.
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。
High-thermal-shock-resistance wear-resistant coating and preparation method thereof
The invention discloses a high-thermal-shock-resistance wear-resistant coating which is prepared by mixing a main material and an auxiliary material in a mass ratio of (92-96): (8-4). The main material comprises the following components in percentage by mass: 25-40% of zirconium dioxide; 35-45% of a binding agent; 10-15% of aluminum silicate powder; 10-15% of aluminum oxide; 2-4% of aluminum powder; and 1-3% of sodium tripolyphosphate. The auxiliary material comprises the following components in percentage by mass: 98-99% of nano powder; and 2-1% of graphene. The nano powder is composed of nano zirconium oxide and nano aluminum oxide according to a mass ratio of 1: 1. According to the high-thermal-shock-resistance wear-resistant coating of the invention, the graphene modified nano powder is adopted; the nano powder is re-dispersed under the action of strong shearing force and are attached onto the surfaces of other large particles, and therefore, micro-cracks can be generated in the product and a network structure can be formed; due to the existence of the micro-cracks, crack propagation energy can be absorbed, such that the product provides significant effects for product catastrophic damage resistance, and therefore, the thermal shock stability of the product can be enhanced.
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。
High-thermal-shock-resistance wear-resistant coating and preparation method thereof
一种高热震耐磨涂料及其制备方法
LIN GUOQIANG (author)
2020-10-13
Patent
Electronic Resource
Chinese
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