Kukura kunoshamisa kwemuchina wekurapa, maindasitiri ezvehutano uye ezvehutano mukati memakore gumi nemashanu apfuura kunoramba kusingadzoreki kunyangwe zvinhu zvakaita sefluoropolymers zviri kusangana nekuwedzera kuri kunetsa kudiwa kwezvigadzirwa zvitsva nemaitirwo.
Kazhinji, mafluoropolymers ari kutsiva mamwe mapurasitiki mune zvekurapa nekuda kwekugona kwavo kuzadzisa zvinodiwa zvemuviri uye biocompatibility zvechizvarwa chinotevera mishonga nemidziyo.Fluoropolymers inosangana neyakasarudzika seti yemaitiro ekuita mumashandisirwo akadaro.Izvi zvinosanganisira biocompatibility, lubricity, sterilization, kemikari inertness, yakafara tembiricha yekushandiswa siyana, yakaderera inosunga kugadzira michina, yakakwira-kuchena ine yakaderera inotorwa, dielectric zvivakwa, uye USP Kirasi VI chitupa.
Mhuri yeanowanikwa fluoropolymers anosangana nezvido zviri pamusoro anosanganisira mamakisi ePTFE, FEP, PFA nePVDF resin kubva kune vakasiyana vanogadzira resin.PTFE(polymer) ine nhoroondo yakamisikidzwa yakasimwa yekutsiviwa kwetishu dzakapfava nekuda kwekugarisana kwayo uye kusasimba.Resin uye vagadziri vezvigadzirwa zvepasi vanoenderera mberi nekupindura kune zvitsva zvinodikanwa zvekuita nekugadzirisa kwakakodzera kukemikari yeresin uye kumisikidzwa kwepasi kwezvigadzirwa, zvichiteerana.
Iyo biocompatibility yechero polymer chinhu chikuru chinodiwa mune chero chishandiso chekurapa senge catheter, bio-containment midziyo, sirinji uye sutures.PTFE, FEP nePVDF zvakanyatsosimbiswa biocompatible zvinhu, uye kusviba kwavo uye makemikari kuramba zvinovaita zvinhu zvesarudzo zvezvigadzirwa zvakaita semulti lumen tubing uye zvimwe zvinoshandiswa mukuita zvishoma.Multi lumen fluoropolymer catheter tubing semuenzaniso inobvumira vavhiyi kuita maitiro akawanda vachishandisa catheter imwechete.
Fluoropolymers, kunyanya PTFE (polymer) uye PVDF anoshandiswa zvakanyanya mu microporous membranes.Membranes, ane mabhiriyoni emapores anotangira pakukura kubva pa 0.01 kusvika pa 10 microns anoita semasefa ezvimedu uye mabhakitiriya ari mumvura yakaoma.PTFE nePVDF ndezvimwe zvemapolymer mashoma anoshandiswa kusefa membranes.Nzvimbo dzepolymers membranes dzinogona kugadziridzwa kuti dziunze chaiyo yekusefa zvimiro uye inogona kuve hydrophobic (inodzoreredza mvura) uye oleophobic (mafuta, solvent, yakaderera pamusoro tension fluid repelling).PVDF membranes inogona zvakare kugadziridzwa pamusoro kuti ive hydrophilic (inoda mvura) yekubvisa mavhairasi particles mukugadzira mapuroteni ekurapa uye monoclonal antibodies.PVDF blotting membranes inonyanya kukodzera kune yakaderera kumashure immunoblotting (western blot analysis), pamwe nekuongorora amino acid uye kutevedza kweprotein.
Zvishandiso zvekushandisa, zvakaita semapombi, tubing, zvigadziriso zvinoshandiswa pamwe chete nemidziyo yekurapa zvinofanirwa kusangana nekuita kwakafanana uye kutsanangurwa paramita.Zvishandiso zvinosangana zvakananga nemvura zvinogadzirwa nefluoropolymers sePTFE nePVDF.Semuyenzaniso, mapombi ekuyera semapombi ediaphragm anodiwa pakuyerera chaiko uye kudzokororwa, dzimwe nguva kune zvinwiwa zvine makemikari.Ose matubhi ePTFE nePVDF anoshandiswa mukuvaka mapombi aya nechikonzero ichi.
PVDF, kunyangwe iine tembiricha yekushandiswa yakaderera pane PTFE(polymer), ine simba rakati tsvikiti uye rinoramba richipinda mumvura zhinji.Iyo ine dhizaini yakaderera (1.78 g/cc) pane mamwe mafluoropolymers (anenge 2.18 g/cc).Nekuda kwekudziya kwakadzika kunyungudika kupfuura mamwe mafluoropolymers, inogadziriswa nyore kuita zvigadzirwa senge pombi, machubhu, majekiseni akaumbwa zvikamu uye mafirimu.Iyo inopa yakanakisa dimensional uye UV kugadzikana uye nekudaro iri kutsvaga kushandiswa kutsva muaerospace, masensa, biotechnology uye marobhoti misika.
Nguva yekutumira: Aug-06-2018