ePTFE: Chinhu Chakanakisisa Chekushandisa Zvikumbiro Zvinoda Kuda
Munyika yezvinhu zvemhando yepamusoro, vashoma vanogona kuenzana nemusanganiswa wakasiyana wezvinhu zvinopihwa neExpanded Polytetrafluoroethylene (ePTFE). Yakabva paPTFE yakajairwa, chinhu ichi chinoshamisa chinoitwa nenzira yakasarudzika yekuwedzera, ichigadzira chimiro chine tumaburi tudiki tunovhura chikamu chitsva chekushanda. Chimiro ichi, chine mafundo akasimba akabatana ne fibrils dzakapfava, ndicho chakavanzika chekushanda kwacho kwakasiyana-siyana uye kuvimbika munzvimbo dzakaoma zvikuru.
Chinhu chikuru chinobatsira che ePTFE ndechekuti ine hunhu hwakasiyana. Chinhu ichi hachina mvura, zvichiita kuti chisapinda mvura zvakanyanya. Zvisinei, maburi ayo madiki akakura zvakakwana kuti utsi hwemvura hupfuure nepakati, zvichikonzera membrane inofema zvakasiyana. Hunhu uhwu "hunodzivirira mvura asi hunofema" hwakaita kuti ive yakakosha muzvipfeko zvekunze zvinoshanda zvakanaka uye maburi ekudzivirira emagetsi anodzivirira, zvichidzivirira kupinda kwehunyoro uku zvichibvumira kuenzana kwekumanikidzwa.
Kupfuura hunhu hwayo hwe membrane, ePTFE inobudirira mukushandiswa kwekuvhara maindasitiri. Sechinhu chinoisa gasket, inopa makemikari asingaenzaniswi, inokwanisa kutsungirira maasidhi nezvinonyungudutsa zvine simba zvakanyanya. Inochengetedza hunhu hwayo mukupisa kwakasiyana-siyana, kubva pakupisa kushoma kusvika pakupisa kwakakwirira kwe260℃ kusvika 500℃. Hunhu hwechinhu ichi hwakapfava uye hunoenderana nechimiro chayo hunoibvumira kugadzira chisimbiso chakasimba, chakasimba panzvimbo dzisina kurongeka kana dzakakuvara nesimba shoma rekudzvanya, zvichideredza zvakanyanya mwero wekudonhedza mvura uye kuwedzera hupenyu hwemuchina.
Uyezve, kuchena kwayo uye kusashanda kwayo zvakanaka kunoita kuti ePTFE ishande zvakanaka mumuviri, zvichikonzera hunyanzvi hunoponesa hupenyu mune zvehutano. Ndiyo inosarudzwa pakuisa tsinga dzeropa, sutures dzekuvhiya, uye machira anoiswa mumuviri, sezvo ichigara pamwe chete zvakachengeteka mumuviri wemunhu.
Kubva pakugadzirwa kwemakemikari kusvika kumidziyo yekurapa nekusefa, ePTFE inopa mwero wekushanda usingagoni kuitwa nezvinhu zvemazuva ano. Simba rayo, kugara kwenguva refu, uye hunhu hwayo hunoita kuti ive sarudzo chaiyo kune mainjiniya nevagadziri vari kutsvaga kugadzirisa matambudziko akaomarara.
Micflon yakatsaurirwa kugadzirwa, kutsvagisa nekusimudzira Ptfe Yakawedzerwa machira kwemakore anopfuura mashanu. Ndapota inzwa wakasununguka kubvunza!