After being gelled, the magnesium aluminum hydroxides have a particle size of nanometer and carry permanent positive charges, which have an alluring potential for papermaking industry.

• 氢氧化镁铝属层状双混合金属氢氧化物,胶溶后具有纳米尺度,带有较高的永久性正电荷,具有诱人的开发前景。