Test method for shielding effects of clothing fabrics by shield box method

Based on the theory of shielding against electromagnetic radiation,a new device by shield box was designed to test electromagnetic shielding effects of polyamide 6(PA6) fabrics that had been treated by electroless plating with silver by varying the weighting percentage.The results indicated that the distance between the radiation source and person could be simulated by the distance between the radiation source and the shielding material.The fabric shielding effects increased with the increase of the weighting percentage,but when to a certain extent they tended to be stable,which meant that the test data obtained from the shield box can directly reflect the change of fabric performance.This shield box method is cost-effective and has good reproducibility.