The experimental observations show that there exist a particular solids contents (40% or so) at which the phenomena changes from freezing point to glass transition, namely bagasse black liquor converts from water-solvent to polymer-solvent systems.
此时 ,黑液由凝固点 (冰点 )温度过渡到玻璃化转变点温度 ,相应地 ,黑液的物化性能如粘度等变化很大。