| 摘要 |
Disclosed is a method for determining the swellability and the swelling kinetics of superabsorbent material ( 9 ) such as polymer gels, for example, which comprises introducing a defined volume of the dry superabsorbent material ( 9 ) into a measuring vessel ( 7 ), using a movable element ( 4 ) within said measuring vessel ( 7 ) to apply a restraining force ( 12 ) to said superabsorbent material ( 9 ) and capturing the expansion of said superabsorbent material ( 9 ) contactlessly within a chamber ( 14 ) in a continuous manner by capturing the change in height of a piston ( 4 ) which bounds said chamber ( 14 ), travels in a measuring vessel ( 7 ) and is marked with a height scale ( 6 ).
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