Abstract
The surface modification of low density polyethylene (LDPE) sheet was carried out by coronadischarge treatment under various humidities. The adhesive strength was measured by a peel testfor the laminated film composed of LDPE with polyethylene-terephthalate(PET). The adhesivestrength be came strong with the increase of humidity and reached the maximum. However,it was found that too much humidity would make the adhesive strengthweak, and therefore thereis the most appropriate humidity. The adhesive strength reached over 1000N/m when both ofLDPE and PET were treated under high humidity
