An experiment about 4 kinds of absorbent polymers

they were conducted to study water absorbency and retention

relationship between water absorbency and particle size

and refrigeration effect on water absorbency and retention.The results showed that all these absorbent polymers had powerful water absorbency

but the water absorbing ability depended on the kind of absorbent polymers.Functional absorbent polymer(L) with maximum water absorption rate had a clear water absorbent peak in distilled water

while Hanbaobei(B) and nutrition(N) absorbent polymer with no obvious peak required more time to reach to the saturation point and water absorption rate of plant absorbent polymer(D) was greater than the one of B and N absorbent polymer during the initial stage

and became lower after that.The water absorbency was distilled waterwell watersoil solution

and no obvious difference in the later two

while L had the largest water absorbent rate

then B and N

D was the lowest

when they were in the same solution.At the same water absorption

the 4 kinds existed significant and insignificant differences periods

while the greater the water absorbency is

the longer time is required for complete dehydration

if they absorb water adequately.Besides

water absorbency was not only influenced by solution but also particle size.Moreover

refrigeration treatments had little effect on both water absorbency and retention.