Polima wa fluorinated kwathunthu yemwe ndi semi-crystalline, semi-opaque ndi woyera.Ili ndi kukana kwamphamvu kwamankhwala komwe sikukhudzidwa ndi pafupifupi mankhwala onse komanso ili ndi index yokwera kwambiri ya okosijeni (kutanthauza kuti si yamoto).Ili ndi coefficient yotsika kwambiri ya kukangana ndipo imakhala yokhazikika ku kutentha kwakukulu.Ndi yofewa, yopunduka mosavuta, imakonda kukwawa komanso yotsika mphamvu ndi kukana kwa radiation.Ndizokwera mtengo kwambiri ndipo sizingasungunuke (ngakhale kuti zimasungunuka pa 327C, kusungunuka kwa viscosity ya masukulu abwino kumakhala kosatha) ndipo kumapangidwa ndi njira zopangira ufa.
Ntchito zamafakitale zimaphatikizapo mayendedwe, zisindikizo, mphete za O, kutentha kwa magetsi kwa kutentha kwapamwamba, zokutira zopanda ndodo ndi zomangira zotengera ndi zina zotero. Zomwe zimakhala zachilendo zimapangitsa kuti zikhale zamtengo wapatali kwa ma laboratory osiyanasiyana.
Choyera chowoneka bwinoPTFE gawoali ndi mapeto apansi ndi kulolerana wamba.Polypropylene (PP) ndi pulasitiki yolimba, yopepuka yokhala ndi malo olimba, osalala omwe ndi oyenera kugwiritsidwa ntchito pomwe mabakiteriya achulukana.Zomwe zimakhala zamphamvu kwambiri, zolimba, komanso zosagwirizana ndi kutentha kwambiri kuposa polyethylene, polypropylene imakhalanso ndi mphamvu yokana mankhwala ndi zosungunulira.
Pulasitiki imatanthawuza gulu la zinthu zopangira kapena zopangira semi-synthetic zomwe zapangidwa kuti zikwaniritse zinthu zinazake.Makhalidwe odziwika kwambiri a mapulasitiki ndi kulemera kwake kochepa, machinability, kukana kwa dzimbiri, komanso zinthu zabwino zotenthetsera ndi magetsi.Magiredi ena apulasitiki amaperekanso kuwala kowoneka bwino kofanana ndi galasi, malo osasunthika kapena odzipaka okha, komanso kukana kwapadera.Kutengera ndi katundu wawo, magiredi ena apulasitiki atha kugwiritsidwa ntchito m'malo mwazitsulo, magalasi, ndi ceramic.Mosiyana ndi zitsulo, pulasitiki imatha kukumana ndi kukwapula, komwe kumakhala kusinthika chifukwa cha kukhudzana kwa nthawi yayitali ndi katundu wokhazikika.
Kulimba kwamphamvu, komwe kumagwiritsidwa ntchito kusonyeza mphamvu zonse za chinthucho, ndiko kupsinjika komwe kumatha kupirira chisanasweka.Kulimbana ndi dzimbiri kumatanthawuza kuthekera kwa zinthuzo popewa kuwonongeka komwe kumachitika chifukwa cha mpweya, chinyezi, kapena zina.Kukana kuvala kumasonyeza kuthekera kopewa kuwonongeka kwa pamwamba komwe kumachitika chifukwa chokhudzana ndi malo ena.Kulimba kumatanthawuza kuthekera kwa zinthu kutengera mphamvu isanasweka, pomwe kuuma (komwe kumayesedwa ngati kuuma kwa indentation) kumatanthawuza kukana kwake kupindika kosatha pamwamba.Impact resistance ndi muyeso wa kuthekera kwa chinthu kutengera kugwedezeka kwa mphamvu chisanasweka.
- PTFE imatsutsana ndi mankhwala ambiri, nthawi zambiri imapirira kutentha kwambiri, ndipo imakhala ndi phokoso lochepa, lopanda ndodo- PTFE nthawi zambiri imapirira kutentha kwapamwamba kusiyana ndi ma fluoropolymers ena, monga FEP ndi ETFE- Ground finish- Colour is opaque white- Standard tolerance
Nthawi yotumiza: Feb-24-2019