The invention discloses a device and method for detecting the water locking performance of a
nursing pad, and relates to the field of material performance tests.The detection method comprises the following steps that S1, a
nursing pad sample is fixed to a detection platform, a composite
dynamic pressure sequence containing sine fluctuation, stepped pressurization and random disturbance is applied, constant-temperature liquid is injected into the sample synchronously, and the water locking amount is calculated; s2, scanning the three-dimensional distribution of liquid in real time, capturing the expansion state of a core body, triggering sudden stop when the edge leaks, and calculating the water locking efficiency; s3, taking an absorption core material, soaking the absorption core material in normal
saline, performing centrifugal
dewatering, and calculating the
water retention capacity; and S4, constructing a three-level
evaluation system output performance report. Composite multi-point pressure is adopted to simulate
human body activity
mechanics characteristics, a multi-mode sensing technology is combined to track the liquid three-dimensional
permeation process in real time, the defects that a traditional method is single in pressure and insufficient in detection dimension are overcome, and dynamic
process analysis support which cannot be achieved through traditional static detection is provided for
product optimization.