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Magnesium oxysulfate cement-based foam wave-absorbing plate and preparation method thereof
The invention relates to a magnesium oxysulfate cement-based foam wave-absorbing plate and a preparation method thereof, and belongs to the technical field of wave-absorbing material preparation. The wave-absorbing plate comprises the following raw material components by mass: 10-20 parts of magnesium sulfate heptahydrate, 10-15 parts of water, 15-25 parts of a wave-absorbing material matrix, 40-50 parts of light calcined magnesia powder, 5-15 parts of a foaming agent, 5-10 parts of a foam stabilizer, 0.1-1 part of a modifier and 0.1-1 part of a water reducing agent. During preparation, after the raw material components of the wave-absorbing plate are prepared, the mixing sequence of the components is adjusted, finally, slurry is prepared, and after maintenance, the magnesium oxysulfate cement-based foam wave-absorbing plate is prepared. According to the magnesium oxysulfate cement-based foam wave-absorbing plate, a small amount of modifier and other auxiliary additives are added, the internal structure is improved, and a uniform and porous magnesium oxysulfate cement material is prepared by utilizing a chemical foaming technique, so that the wave-absorbing effect is improved, and the wave-absorbing plate has an electromagnetic wave absorbing function while heat preservation and heat insulation are ensured; and the wave-absorbing material shows a good wave-absorbing effect at a high frequency of 26.5-40GHz, and has a relatively good reflection frequency.
本发明的一种硫氧镁水泥基泡沫吸波板及其制备方法，属于吸波材料制备技术领域，吸波板包括原料组分及质量份数为：10～20份七水硫酸镁，10‑15份水，15～25份吸波材料基体；40～50份轻烧氧化镁粉，5‑15份发泡剂，5‑10份稳泡剂，0.1～1份改性剂，0.1～1份减水剂。制备时，按吸波板原料组分备料后，调整各组分混合顺序，最终制得浆液，养护后，制得硫氧镁水泥基泡沫吸波板。该硫氧镁水泥基泡沫吸波板，通过加入少量改性剂和其他辅助类添加剂，改善内部结构，利用化学发泡手法，制备出均匀多孔的硫氧镁水泥材料，从而提高吸波效果，保证吸波板在保温隔热的同时，兼具电磁波吸收功能，在高频26.5‑40GHz均表现出良好的吸波效果，具有较好的反射频率。
Magnesium oxysulfate cement-based foam wave-absorbing plate and preparation method thereof
The invention relates to a magnesium oxysulfate cement-based foam wave-absorbing plate and a preparation method thereof, and belongs to the technical field of wave-absorbing material preparation. The wave-absorbing plate comprises the following raw material components by mass: 10-20 parts of magnesium sulfate heptahydrate, 10-15 parts of water, 15-25 parts of a wave-absorbing material matrix, 40-50 parts of light calcined magnesia powder, 5-15 parts of a foaming agent, 5-10 parts of a foam stabilizer, 0.1-1 part of a modifier and 0.1-1 part of a water reducing agent. During preparation, after the raw material components of the wave-absorbing plate are prepared, the mixing sequence of the components is adjusted, finally, slurry is prepared, and after maintenance, the magnesium oxysulfate cement-based foam wave-absorbing plate is prepared. According to the magnesium oxysulfate cement-based foam wave-absorbing plate, a small amount of modifier and other auxiliary additives are added, the internal structure is improved, and a uniform and porous magnesium oxysulfate cement material is prepared by utilizing a chemical foaming technique, so that the wave-absorbing effect is improved, and the wave-absorbing plate has an electromagnetic wave absorbing function while heat preservation and heat insulation are ensured; and the wave-absorbing material shows a good wave-absorbing effect at a high frequency of 26.5-40GHz, and has a relatively good reflection frequency.
本发明的一种硫氧镁水泥基泡沫吸波板及其制备方法，属于吸波材料制备技术领域，吸波板包括原料组分及质量份数为：10～20份七水硫酸镁，10‑15份水，15～25份吸波材料基体；40～50份轻烧氧化镁粉，5‑15份发泡剂，5‑10份稳泡剂，0.1～1份改性剂，0.1～1份减水剂。制备时，按吸波板原料组分备料后，调整各组分混合顺序，最终制得浆液，养护后，制得硫氧镁水泥基泡沫吸波板。该硫氧镁水泥基泡沫吸波板，通过加入少量改性剂和其他辅助类添加剂，改善内部结构，利用化学发泡手法，制备出均匀多孔的硫氧镁水泥材料，从而提高吸波效果，保证吸波板在保温隔热的同时，兼具电磁波吸收功能，在高频26.5‑40GHz均表现出良好的吸波效果，具有较好的反射频率。
Magnesium oxysulfate cement-based foam wave-absorbing plate and preparation method thereof
一种硫氧镁水泥基泡沫吸波板及其制备方法
LIU JUN (author) / CUI BAODONG (author) / YANG QILE (author) / LI YAO (author) / DENG YONGGANG (author) / YANG YUANQUAN (author)
2022-01-04
Patent
Electronic Resource
Chinese
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