Conductivity and EMI shielding efficiency of polypyrrole and metal compounds coated on (non) woven fabrics

摘要

We synthesized polypyrrole (PPy) and metal (AgPd) compounds coated on woven polyethylene terapbthalate (PET) and nonwoven polyester (PE) fabrics. PPy coated on PET or PE fabrics was chemically polymerized by using naphthalene sulfonic acid (NSA) as a dopant and electrochemically synthesized by using anthraquinon-2-sulfonic acid (AQSA) as a dopant. Temperature dependences of dc conductivity (#sigma#_(dc)(T)) of PPy-NSA/fabric and PPy-AQSA/fabric complexes are compared. The electromagnetic interference (EMI) shielding efficiency (SE) of PPy/fabric complexes is in the range of 20 approx 80 dB depending on the thickness and conductivity.