In order to evaluate the influence of sheet electron beam irradiation (SEBI) with low potential on water absorption in nylon6, the mass of water absorption in nylon6 has been measured. The SEBI decreases the saturated mass of water absorption in nylon6 and also decreases the initial absorption rate of water, as well as the mass of absorbed water in nylon6 for each treatment time. Based on the results of ESR and XPS, the SEBI forms dangling bonds and then decreases the electrical polarization of nylon6 molecules, resulting in decreasing the mass of absorbed water in nylon6.
