It us possible to raise the modulus of normal low modulus sodium silicate by adding some quantity of amorphous silicon dioxide (white carbon black), however the author's investigation showed that the quality of the hi-modulus sodium silicate obtained such
It us possible to raise the modulus of normal low modulus sodium silicate by adding some quantity of amorphous silicon dioxide (white carbon black), however the author's investigation showed that the quality of the hi-modulus sodium silicate obtained such
一般低模数的水玻璃可以通过在其中加入一定量的无定形二氧化硅来提高模数，但研究表明，用这种方法调得的高模数水玻璃质量并不十分理想，在使用上存在很大问题。