Ukukhula okuchukumisayo kwesixhobo sonyango, kushishino lwebhayoloji kunye nokhathalelo lwezempilo kule minyaka ili-15 idlulileyo kusaqhubeka ngokungagungqiyo nanjengoko izixhobo ezifana neefluoropolymers zihlangabezana nemfuno engumceli-mngeni ekhulayo yeemveliso kunye neenkqubo ezintsha.
Ngokubanzi, ii-fluoropolymers ngokuqhubekayo zithatha indawo yezinye iiplastiki kwizicelo zonyango ngenxa yokukwazi kwazo ukuhlangabezana neemfuno zomzimba kunye ne-biocompatibility yesizukulwana esilandelayo samachiza kunye nezixhobo.I-Fluoropolymers ihlangabezana nesethi ekhethekileyo yemilinganiselo yokusebenza kwizicelo ezinjalo.Ezi ziquka i-biocompatibility, i-lubricity, inzalo, i-inertness yekhemikhali, ububanzi bokusetyenziswa kobushushu obubanzi, ukubophelela okuphantsi kwezixhobo zokusebenza, ukucoceka okuphezulu kunye ne-extractables ephantsi, iipropati ze-dielectric, kunye ne-USP Class VI certification.
Intsapho yee-fluoropolymers ezikhoyo ezihlangabezana neemfuno ezingentla zibandakanya amabakala e-PTFE, i-FEP, i-PFA kunye ne-PVDF ye-resin evela kubavelisi abahlukeneyo be-resin.I-PTFE(ipolymer) inembali yofakelo olusekiweyo yokutshintshwa kwezicubu ezithambileyo ngenxa yokuhambelana kwayo nendalo kunye nokungangeni.I-resin kunye nabavelisi beemveliso ezisezantsi baqhubeka bephendula kwiimfuno ezintsha zokusebenza ngokwenza uhlengahlengiso olufanelekileyo kwikhemistri ye-resin kunye nokucwangciswa komphezulu weemveliso, ngokulandelanayo.
I-biocompatibility yayo nayiphi na i-polymer iyimfuneko ephambili kuyo nayiphi na into yonyango efana ne-catheters, izitya ze-bio-containment, iisirinji kunye ne-sutures.I-PTFE, i-FEP kunye ne-PVDF zizixhobo ezihambelana ne-biocompatible ezisekelwe kakuhle, kwaye ukuthambisa kwazo kunye nokuxhathisa imichiza kuzenza zibe yimathiriyeli yokuzikhethela kwiimveliso ezifana ne-lumen ye-lumen emininzi kunye nezinye ezisetyenziswa kwiinkqubo zokuhlasela kancinci.I-Multi lumen fluoropolymer catheter tubing umzekelo ivumela oogqirha botyando ukuba benze iinkqubo ezininzi besebenzisa i-catheter efanayo.
I-Fluoropolymers, ngakumbi i-PTFE(ipolymer) kunye ne-PVDF zisetyenziswa kakhulu kwiinwebu ezincinci.Iimembranes, eziqulethe iibhiliyoni zeepores ukusuka kwi-0.01 ukuya kwi-10 microns zisebenza njengezihluzo zamasuntswana kunye neebhaktheriya kumanzi abalulekileyo.I-PTFE kunye ne-PVDF ziphakathi kweepholima ezimbalwa ezisetyenziselwa ukucoca inwebu.Umphezulu weembrane zepolymers unokuguqulwa ukuze unikeze iimpawu ezithile zokuhluza kwaye unokuba yi-hydrophobic (i-repelling yamanzi) kunye ne-oleophobic (i-oyile, i-solvent, i-low surface tension fluid repelling).Iimbrane ze-PVDF zinokuphinda ziguqulwe zibe yi-hydrophilic (amanzi athanda amanzi) ukuze kususwe amasuntswana entsholongwane egazini xa kusenziwa iiproteni zonyango kunye ne- monoclonal antibodies.Iinwebu zokuvala ze-PVDF zifaneleke ngokukodwa ukuvala i-immunoblotting yangasemva (uhlalutyo lwe-blot yasentshona), kunye nohlalutyo lwe-amino acid kunye nokulandelelana kweprotheyini.
Izixhobo ze-accessory, ezifana neepompo, i-tubing, izixhobo ezisetyenziswa ngokubambisana nezixhobo zonyango kufuneka zihlangabezane nokusebenza okufanayo kunye neeparitha zenkcazo.Izixhobo ezidibana ngokuthe ngqo nolwelo zenziwe ngeefluoropolymers ezifana ne-PTFE kunye ne-PVDF.Umzekelo, iimpompo zokulinganisa iimitha ezifana neepompo ze-diaphragm ziyafuneka ukuhamba okuchanekileyo kunye nokuphindaphindayo, ngamanye amaxesha kulwelo olunobuchwephesha bekhemikhali.Zombini iityhubhu ze-PTFE kunye ne-PVDF zisetyenziswa ekwakhiweni kwezi mpompo ngenxa yesi sizathu.
I-PVDF, nangona inomlinganiselo osezantsi wokusebenzisa ubushushu kune-PTFE(ipolymer), inamandla okuzibamba aphezulu nokomelela okugqwesileyo kokumelana nolwelo oluninzi.Inoxinano olusezantsi (1.78 g/cc) kunezinye iifluoropolymers (malunga ne-2.18 g/cc).Ngenxa yobushushu obuphantsi bokunyibilika kunezinye ii-fluoropolymers, kulula ukusetyenzwa ngayo kwiimveliso ezinjengemibhobho, iityhubhu, iinxalenye ezibunjiweyo zenaliti kunye neefilimu.Ibonelela ngokugqwesileyo komgangatho kunye nozinzo lwe-UV kwaye ke ngoko ifumana usetyenziso olutsha kwi-aerospace, izinzwa, i-biotechnology kunye neemarike zerobhothi.
Ixesha lokuposa: Aug-06-2018