Diversified reasons influencing adhesive strength between abrasive medium and PET base materials are analyzed in terms of adhesive mechanism and physical and chemical factors.The corresponding experiment project was worked out and the sample product was made.Through the comparison test of adhesive strength of samples

an optimal experiment project was confirmed.The experimental results show that

by corona treatment on the surface of PET base material

coating bottom pastern of about 1.5 μm composed of polyurethane

VAGH

organosilicon coupling agent

and SiO2

and then coating abrasive medium

the adhesive strength between abrasive medium and PET base material is obviously enhanced.