When touching WSR, the water molecules enter in the rubber by diffusing, capillarity or adsorption.Water-absorbent resin in the rubber absorbs water and deforms, which causes the rubber to expand.

• 当与水接触时，水分子会通过扩散、毛细及表面吸附等物理作用进入遇水膨胀橡胶体内，进而与橡胶中的亲水性基团形成极强的亲和力。