Method for obtaining modified polyesters, preferably the polycarbonate with antibacterial properties, used for spatial printing

摘要

method for obtaining modified polyesters, especially polycarbonate, antimicrobial properties, used in printing, spatial is characterized by the fact that at ambient temperature (room temperature), beneficial use, is 5% - 20%, nanosrebra size particles from suspension 50 nm to 300 nm in sugarcane alcohol (cukrolu)and gwieu017adzisty poliol construction szeu015bcioramiennej and average molecular weight range from 3000 to 20000, and beneficial for 30 minutes or until a homogeneous mixture, after which the following factor sieciuju0105cy as polymeric diisocyanate difenylometanu (p mdi) and apply the transition oh / nco and the catalyst is then mixed with hard,beneficial during 10 minutes or until the disappearance of the egzotermii reaction, the best homogenization system, and subsequently the mixture is exposed to reduced pressure, preferably from 0.5 mm hg to 40 mm hg, preferably by 120 minutes, resulting in an domieszk polyurethane insulated by nanosrebrem, which breaks up to the size of particles from 0.05 mm to 0.5 mm, preferably 0.2 mm,and mixed with polyester, preferably for 20 minutes to 60 minutes, after which the resulting mixture blenduje and shall be moulded in the form of strings, advantageously in temperature from 190u00b0c to 260u00b0c, depending on the polyester.