Kukula kochititsa chidwi kwa zida zamankhwala, mafakitale azachipatala komanso azachipatala m'zaka 15 zapitazi kukupitilirabe ngakhale zida monga fluoropolymers zikukwaniritsa kufunikira kwazinthu zatsopano ndi njira zatsopano.
Nthawi zambiri, ma fluoropolymers akulowa m'malo mwa mapulasitiki ena pang'onopang'ono pantchito zachipatala chifukwa chotha kukwaniritsa zofunikira zakuthupi komanso zogwirizana ndi mankhwala ndi zida zam'badwo wotsatira.Ma Fluoropolymers amakumana ndi njira zapadera zogwirira ntchito pamapulogalamu otere.Izi zikuphatikizapo biocompatibility, lubricity, sterilization, inertness mankhwala, kutentha kwakukulu komwe kumagwiritsidwa ntchito, kutsika pang'ono pokonza zipangizo, kuyeretsa kwambiri ndi zochotsera zochepa, katundu wa dielectric, ndi USP Class VI certification.
Banja la ma fluoropolymers omwe alipo omwe amakwaniritsa zofunikira pamwambapa akuphatikiza magiredi a PTFE, FEP, PFA ndi PVDF utomoni kuchokera kwa opanga utomoni osiyanasiyana.PTFE(polima) ili ndi mbiri yokhazikitsidwa bwino yoyika minofu yofewa m'malo chifukwa cha kuyanjana kwake ndi kusakhazikika.Opanga ma resin ndi otsika akupitilizabe kuyankha pazofunikira zatsopano popanga zosintha zoyenera ku chemistry ya utomoni ndi masinthidwe amtundu wa zinthuzo, motsatana.
Kugwirizana kwa ma polima aliwonse ndikofunikira pazida zilizonse zachipatala monga ma catheter, zombo zokhala ndi bio, ma syringe ndi ma sutures.PTFE, FEP ndi PVDF ndi zida zokhazikitsidwa bwino zogwirizanirana, ndipo kukhuta kwake komanso kukana kwamankhwala kumawapangitsa kukhala chinthu chosankha pazinthu monga machubu ambiri a lumen ndi zina zomwe zimagwiritsidwa ntchito posokoneza pang'ono.Machubu ambiri a lumen fluoropolymer catheter mwachitsanzo amalola madokotala kuchita maopaleshoni angapo pogwiritsa ntchito catheter yomweyo.
Fluoropolymers, makamaka PTFE(polima) ndi PVDF amagwiritsidwa ntchito kwambiri mu nembanemba microporous.Ma membranes, okhala ndi mabiliyoni a ma pores kuyambira kukula kwa 0.01 mpaka 10 microns amakhala ngati zosefera za tinthu tating'onoting'ono ndi mabakiteriya amadzimadzi ovuta.PTFE ndi PVDF ndi ena mwa ma polima ochepa omwe amagwiritsidwa ntchito popanga ma nembanemba.Maonekedwe a nembanemba ya ma polima amatha kusinthidwa kuti apereke zinthu zina zosefera ndipo amatha kukhala a hydrophobic (kuthamangitsa madzi) ndi oleophobic (mafuta, zosungunulira, kutsika kwamphamvu kwamadzimadzi).PVDF nembanemba amathanso kusinthidwa pamwamba kukhala hydrophilic (okonda madzi) kuti achotse tinthu ta tizilombo toyambitsa matenda popanga mapuloteni achire ndi ma antibodies monoclonal.PVDF blotting nembanemba ndizoyenera makamaka pakuchepetsa chitetezo cham'mbuyo (kuwunika kwa kumadzulo kwa blot), komanso kusanthula kwa amino acid ndi kutsata mapuloteni.
Zida zowonjezera, monga mapampu, machubu, zotengera zomwe zimagwiritsidwa ntchito limodzi ndi zida zamankhwala ziyenera kukumana ndi magwiridwe antchito ofanana ndi mawonekedwe.Zida zomwe zimagwirizana mwachindunji ndi madzi amapangidwa ndi fluoropolymers monga PTFE ndi PVDF.Mwachitsanzo, mapampu oyezera mita monga mapampu a diaphragm amafunikira kuti aziyenda bwino komanso mobwerezabwereza, nthawi zina pamadzi amadzi amphamvu.Machubu a PTFE ndi PVDF amagwiritsidwa ntchito popanga mapampuwa pazifukwa izi.
PVDF, ngakhale kukhala ndi kutentha otsika ntchito malire kuposa PTFE(polima), ali ndi mkulu kumakanika mphamvu ndi kwambiri permeation kukana madzi ambiri.Ili ndi kachulukidwe kakang'ono (1.78 g/cc) kuposa ma fluoropolymers ena (pafupifupi 2.18 g/cc).Chifukwa cha kutentha kochepa kosungunuka kuposa ma fluoropolymers ena, amatha kusinthidwa mosavuta kukhala zinthu monga mapaipi, machubu, jekeseni ndi mafilimu.Imapereka kukhazikika kowoneka bwino komanso kwa UV motero ikupeza ntchito zatsopano muzamlengalenga, masensa, biotechnology ndi misika yama robotiki.
Nthawi yotumiza: Aug-06-2018