CN105541353A - 一种多用途的热障涂料及制备方法 - Google Patents
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Abstract
本发明公开了一种多用途的热障涂料及制备方法,属于涂料领域,其组成(重量比)为:二氧化锆37.2-46.8份,氧化铈15.2-20.3,滑石粉2.2-14.3份,碳酸钙10.3-22.4份,氧化锌7.4-20.1份,氧化铝12.2-24.3份,本发明是以氧化锆基础,通过添加多种无机氧化物,经过高速剪切,开发出一种热导率低、热膨胀系数适中、制备方法简单、成本低的热障涂料。
Description
技术领域
本发明属于涂料领域,尤其涉及一种多用途的热障涂料及制备方法。
技术背景
热障涂层(ThermalBarrierCoatings,TBCs)是由陶瓷氧化物面层和起粘结作用的底涂层组成的防热系统。它利用陶瓷材料优异的耐高温、耐冲刷、抗腐蚀和低导热性能,提高金属部件的许用工作温度,增强热端部件的抗高温能力,延长热端部件的使用寿命,提高发动机的工作效率。
氧化锆陶瓷是一种重要的工程陶瓷材料,具有高化学稳定性、高热稳定性、高断裂韧性、高离子电导率、高热膨胀系数和低热导率等,在生物医学材料、高温发热材料、结构材料、固体电解质材料和热障涂层材料等领域有着广泛的应用。
本发明的目的是以氧化锆基础,通过添加多种无机氧化物,经过高速剪切,开发出一种热导率低、热膨胀系数适中、制备方法简单、成本低的热障涂料。
发明内容
一种多用途的热障涂料,其组成(重量比)为:二氧化锆37.2-46.8份,氧化铈15.2-20.3,滑石粉2.2-14.3份,碳酸钙10.3-22.4份,氧化锌7.4-20.1份,氧化铝12.2-24.3份。
一种多用途的热障涂料,其组成(重量比)为:二氧化锆38.3份,氧化铈为18.3,滑石粉11.2份,碳酸钙,11.7份,氧化锌9.4份,氧化铝11.1份。
一种多用途的热障涂料,其特征在于:二氧化锆的粒径为20-40nm。
一种多用途的热障涂料,其特征在于:氧化铈粉粒径为35-55nm。
一种多用途的热障涂料,其特征在于:碳酸钙粒径为100-140nm。
一种多用途的热障涂料,其特征在于:氧化锌粒径为80-100nm。
一种多用途的热障涂料,其特征在于:氧化铝粒径为25-45nm。
一种多用途的热障涂料的制备方法,制备过程为:
(1)将规定量的滑石粉、碳酸钙进行混合,并加入蒸馏水(重量比)30-50份,并进行高速剪切,转速为8000-10000r/min,时间为1-2h,得到浆液a;
(2)在浆液a中加入规定量的氧化锌、氧化铝,并加入蒸馏水(重量比)5-10份,并进行高速剪切,转速为4000-6000r/min,时间为0.5-1.5h,得到浆液b;
(3)在浆液b中加入规定量的氧化锆粉,氧化铈,并进行高速剪切,转速为5000r/min,时间为1.8h,得到多用途的热障涂料。
实施例
一种多用途的热障涂料,其组成(重量比)为:二氧化锆37.2-46.8份,氧化铈15.2-20.3,滑石粉2.2-14.3份,碳酸钙10.3-22.4份,氧化锌7.4-20.1份,氧化铝12.2-24.3份。
其中其组成优选(重量比)为:二氧化锆38.3份,氧化铈为18.3,滑石粉11.2份,碳酸钙,11.7份,氧化锌9.4份,氧化铝11.1份。
一种多用途的热障涂料,其特征在于:二氧化锆的粒径为20-40nm,优选粒径为30nm。
一种多用途的热障涂料,其特征在于:氧化铈粉粒径为35-55nm,优选粒径为45nm。
一种多用途的热障涂料,其特征在于:碳酸钙粒径为100-140nm,优选粒径为120nm。
一种多用途的热障涂料,其特征在于:氧化锌粒径为80-100nm,优选粒径为90nm。
一种多用途的热障涂料,其特征在于:氧化铝粒径为25-45nm,优选粒径为30nm。
一种多用途的热障涂料的制备方法,制备过程为:
(1)将规定量的滑石粉、碳酸钙进行混合,并加入蒸馏水(重量比)30-50份,并进行高速剪切,转速为8000-10000r/min,时间为1-2h,得到浆液a;
(2)在浆液a中加入规定量的氧化锌、氧化铝,并加入蒸馏水(重量比)5-10份,并进行高速剪切,转速为4000-6000r/min,时间为0.5-1.5h,得到浆液b;
(3)在浆液b中加入规定量的氧化锆粉,氧化铈,并进行高速剪切,转速为5000r/min,时间为1.8h,得到多用途的热障涂料。
其中过程(1)中蒸馏水(重量比)优选为45份,转速优选为9000r/min,时间优选为1.5h。
其中过程(2)中蒸馏水(重量比)优选为8份,转速优选为4500r/min,时间优选为1h。
本发明的目的是以氧化锆基础,通过添加多种无机氧化物,经过高速剪切,开发出一种热导率低、热膨胀系数适中、制备方法简单、成本低的热障涂料。
发明内容只要物质比例在本发明范围内,都是本发明保护的范围,同时实施例并不一定是本发明的最佳实施例。
Claims (8)
1.一种多用途的热障涂料,其组成(重量比)为:二氧化锆37.2-46.8份,氧化铈15.2-20.3份,滑石粉2.2-14.3份,碳酸钙10.3-22.4份,氧化锌7.4-20.1份,氧化铝12.2-24.3份。
2.根据权利要求1所述的一种多用途的热障涂料,其特征在于:组成(重量比)为:二氧化锆38.3份,氧化铈为18.3,滑石粉11.2份,碳酸钙,11.7份,氧化锌9.4份,氧化铝11.1份。
3.根据权利要求1或2所述的一种多用途的热障涂料,其特征在于:二氧化锆的粒径为20-40nm。
4.根据权利要求1或2所述的一种多用途的热障涂料,其特征在于:氧化铈粉粒径为35-55nm。
5.根据权利要求1或2所述的一种多用途的热障涂料,其特征在于:碳酸钙粒径为100-140nm。
6.根据权利要求1或2所述的一种多用途的热障涂料,其特征在于:氧化锌粒径为80-100nm。
7.根据权利要求1或2所述的一种多用途的热障涂料,其特征在于:氧化铝粒径为25-45nm。
8.根据权利要求1或2所述的一种多用途的热障涂料,其制备方法为:
(1)将规定量的滑石粉、碳酸钙进行混合,并加入蒸馏水(重量比)30-50份,并进行高速剪切,转速为8000-10000r/min,时间为1-2h,得到浆液a;
(2)在浆液a中加入规定量的氧化锌、氧化铝,并加入蒸馏水(重量比)5-10份,并进行高速剪切,转速为4000-6000r/min,时间为0.5-1.5h,得到浆液b;
(3)在浆液b中加入规定量的氧化锆粉,氧化铈,并进行高速剪切,转速为5000r/min,时间为1.8h,得到多用途的热障涂料。
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CN112707727A (zh) * | 2020-12-30 | 2021-04-27 | 广东华科新材料研究院有限公司 | 多用途的热障涂料及其制备方法 |
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CN101397214A (zh) * | 2008-11-05 | 2009-04-01 | 内蒙古科技大学 | 多元共稳定氧化锆热障涂层材料及制备方法 |
CN101805126A (zh) * | 2010-04-13 | 2010-08-18 | 中南大学 | 一种钢基体表面热障涂层及制备方法 |
CN101857737A (zh) * | 2010-07-08 | 2010-10-13 | 内蒙古兴泰建筑有限责任公司 | 一种防腐纳米水性建筑涂料及其制备方法 |
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CN112707727A (zh) * | 2020-12-30 | 2021-04-27 | 广东华科新材料研究院有限公司 | 多用途的热障涂料及其制备方法 |
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