The short cut composite fiber in gypsum slurry was dispersed by ball milling and mechanical stirring.The influence of the composite fibers content on dispersion of gypsum fiber and gypsum slurry was investigated

and its micro-mechanism was described.The results show that under the same ball milling conditions

the dispersion effect of fiber in gypsum slurry is obviously changed with the increase of fiber content.As the fiber content in the range of 0

1

.25%

it is found that with the fiber content less than 0.5%

the fiber dispersion presents desirable with absence of agglomeration and tangles

while more than 0.5%

the fiber dispersion in the gypsum becomes worse with occurrence of agglomeration and tangles of fiber bundles.