表面负载金属纳米粒子的氮化物陶瓷导热填料的制备与表征
Preparation and Characterization of Nitride Ceramic Thermal Conductive Fillers Decorated with Metal Nanoparticles
陈燕杰 1董华蕊 1马清怡 2赵雪伶 3陈立飞3
作者信息
- 1. 上海第二工业大学 能源与材料学院,上海 201209
- 2. 上海第二工业大学 资源与环境工程学院,上海 201209
- 3. 上海第二工业大学 能源与材料学院,上海 201209;上海第二工业大学 上海先进热功能材料工程技术研究中心,上海 201209
- 折叠
摘要
采用直接混合加热法制备氮化物陶瓷复合导热填料,这是一种可以批量生产,并且不使用溶剂、对环境友好的制备方法.通过扫描电镜、X射线衍射仪、TCI导热仪研究不同金属纳米粒子(镍、钴和银)在氮化物(氮化铝、氮化硼)上的负载情况以及负载量,并考察了复合陶瓷导热填料对聚乙烯醇基复合导热膜导热性能的影响.结果表明,金属纳米粒子成功负载到氮化物上而不改变氮化物的晶体结构.且负载金属粒子的尺寸随乙酸盐含量的增加而增大.另外,负载金属粒子的陶瓷导热填料能有效提高聚乙烯醇基复合导热膜导热能力,Ag/AlN-0.05导热膜的导热率能达到0.752 W/(m·K).
Abstract
Nitride thermal conductive composite fillers were prepared by the mix and heat method.It's an environmentally friendly preparation method that can be mass-produced and does not use solvents.The loading of different metal nanoparticles(nickel,cobalt and silver)onto nitrides(aluminum nitride,boron nitride)and the amount of loading were investigated by scanning electron microscopy,X-ray diffractometer and TCI thermal conductivity meter,and the effect of composite ceramic thermally conductive filler on the thermal conductivity of polyvinyl alcohol-based composite thermal conductive film was examined.The results show that the metal nanoparticles were successfully loaded onto the nitrides without changing the crystal structure of the nitrides.And the size of the loaded metal particles increase with the increase of acetate content.In addition,the ceramic thermally conductive filler loaded with metal particles can effectively improve the thermal conductivity of polyvinyl alcohol-based composite thermally conductive film,and the thermal conductivity of Ag/AlN-0.05 thermally conductive film can reach 0.752 W/(m·K).
关键词
氮化铝/氮化硼/乙酸盐/金属粒子/导热填料Key words
aluminum nitride/boron nitride/acetate/metal particles/thermal conductive fillers引用本文复制引用
出版年
2024
NETL
NSTL
万方数据