中高温的太阳能热利用是今后太阳能利用的发展趋势,而作为关键技术的高性能中高温太阳能选择性吸收涂层是当前研究的重点.采用NaOH作为沉淀剂合成了FeCuMnOx氧化物功能粉体,重点考察了不同原料的配比和烧结温度对粉体性能的影响,并得到较好的制备工艺.以耐高温有机硅树脂、改性聚酰亚胺树脂及自制的氧化铝溶胶作为粘结剂,FeCuMnOx作为太阳能选择性吸收功能粉体,制备出3种不同的太阳能吸收涂层,比较分析了其吸收性能和发射性能.研究表明:以氧化铝溶胶为粘结剂时,得到的涂层各方面性能较好,在太阳能中高温热利用方面具有较好的应用前景.
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