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A platform for research: civil engineering, architecture and urbanism
Preparation method of porous carbon particle microwave absorbent with adjustable electromagnetic parameters
The invention belongs to the field of microwave absorbing materials, and particularly relates to a preparation method of a porous carbon particle microwave absorbent with adjustable electromagnetic parameters. The preparation method comprises the following steps: (1) ball-milling and uniformly mixing flour and carbon fibers according to a certain proportion; (2) fermenting saccharomycetes, forming pores and drying; (3) pyrolyzing the dried product in an inert atmosphere; and (4) crushing the pyrolysis product and screening out particles with developed gaps. The porous carbon particle microwave absorbent with the adjustable electromagnetic parameters is developed in pore structure and large in specific surface area, and the electromagnetic parameters can be adjusted by controlling the doping amount of the carbon fibers, so that the wave absorbing performance of the material is improved. The method is simple in preparation process, low in cost, environmentally friendly and suitable for industrial production.
本发明属于微波吸收材料领域，具体涉及一种电磁参数可调的多孔炭颗粒微波吸收剂的制备方法。该制备方法包括以下步骤：(1)面粉和碳纤维按照一定比例球磨混料均匀；(2)酵母菌发酵造孔并干燥；(3)干燥产物惰性气氛中热解；(4)热解产物破碎并筛选出空隙发达的颗粒。本发明电磁参数可调的多孔炭颗粒微波吸收剂孔结构发达、比表面积大，可以通过控制碳纤维的掺杂量调节电磁参数，从而提升材料的吸波性能。本发明制备工艺简单，成本低，且环境友好，适合工业化生产。
Preparation method of porous carbon particle microwave absorbent with adjustable electromagnetic parameters
The invention belongs to the field of microwave absorbing materials, and particularly relates to a preparation method of a porous carbon particle microwave absorbent with adjustable electromagnetic parameters. The preparation method comprises the following steps: (1) ball-milling and uniformly mixing flour and carbon fibers according to a certain proportion; (2) fermenting saccharomycetes, forming pores and drying; (3) pyrolyzing the dried product in an inert atmosphere; and (4) crushing the pyrolysis product and screening out particles with developed gaps. The porous carbon particle microwave absorbent with the adjustable electromagnetic parameters is developed in pore structure and large in specific surface area, and the electromagnetic parameters can be adjusted by controlling the doping amount of the carbon fibers, so that the wave absorbing performance of the material is improved. The method is simple in preparation process, low in cost, environmentally friendly and suitable for industrial production.
本发明属于微波吸收材料领域，具体涉及一种电磁参数可调的多孔炭颗粒微波吸收剂的制备方法。该制备方法包括以下步骤：(1)面粉和碳纤维按照一定比例球磨混料均匀；(2)酵母菌发酵造孔并干燥；(3)干燥产物惰性气氛中热解；(4)热解产物破碎并筛选出空隙发达的颗粒。本发明电磁参数可调的多孔炭颗粒微波吸收剂孔结构发达、比表面积大，可以通过控制碳纤维的掺杂量调节电磁参数，从而提升材料的吸波性能。本发明制备工艺简单，成本低，且环境友好，适合工业化生产。
Preparation method of porous carbon particle microwave absorbent with adjustable electromagnetic parameters
一种电磁参数可调的多孔炭颗粒微波吸收剂的制备方法
ZU YAPEI (author) / SHEN ZHANGTAO (author) / CHEN YUQIU (author) / GONG JUN (author) / SUN CHAO (author)
2022-03-25
Patent
Electronic Resource
Chinese
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