PTFE is also called the teflon or teflon (PTFE) surface modification

Surface activity and as a result of the PTFE is extremely low viscous limit its and other composite materials compound, therefore must carry on the certain surface modification of PTFE material, to improve its surface activity. Commonly used with surface activation technology, can use of high-energy rays radiation make its surface defluorization, under the certain condition of equipment and grafting fluoride and other materials; With some inert gas low temperature plasma treatment, PTFE material in carbon - fluoride or fracture of carbon - carbon bonds, to generate a large amount of free radicals in order to add PTFE surface free energy, improve the wettability and adhesion; The PTFE immersed in molten potassium acetate, under appropriate temperature processing formation has certain activity, the activation layer; PTFE in a certain proportion of sodium hydroxide, two allyl melamine mixture heat treatment can improve the surface activity; PTFE after a certain intensity and time of corona treatment, can be formed to connect the activation layer. Chemical modification, the PTFE after a certain chemical reagent treatment can improve its surface activity, these chemicals can be the ammonia solution of metallic sodium, sodium naphthalene tetrahydrofuran solution, alkali metal amalgam, five carbonyl iron solution, etc. Surface deposition modification, PTFE impregnated in some metal hydroxide colloid solution, make the colloid particle deposition on the surface of PTFE. So as to increase its wettability, and to improve its surface activity, and easy to composite with other materials. The main methods of surface modification for PTFE membrane, PTFE membrane after proper treatment, usually can make its good bonding with other materials compound, which is widely used in chemical corrosion in the village, sealing products and lubrication device design and manufacturing, the dominant idea is introducing polar group, increase the interface bonding strength.