Commercial fluoropolymers yakavakirwa paTFE, VDF, uye kusvika padiki CTFE.Mienzaniso yemakonommeri inosanganisira PMVE, PEVE, PPVE, HFP, CTFE, uye PFBE.Mhedzisiro yakajairika yekutsiva fluorine yehydrogen mupolymer inosanganisira kuwedzera kemikari uye kunyunguduka kuramba, kuwedzeredzwa kwemagetsi zvinhu senge yakaderera dielectric kugara, yakaderera coefficient of friction, yakakwirira kunyungudika, yakawedzera photostability uye kugadzikana kwekupisa, kuvandudzwa kwemoto kuramba, uye kupera simba kwemagetsi. properties.Iwo ekupedzisira zvivakwa anowanikwa kana polymer yakazara fluorinated.
Kugadzira Techniques
Kunze kwemafluoropolymers maviri, PVF uye PTFE, mamwe marenzi anotsanangurwa muchitsauko chino anogona kugadziriswa neyakajairwa melt-processing techniques senge jekiseni, kutamisa uye kuvhuvhuta kuumbwa, extrusion uye kutenderera kuumbwa.Zvishandiso zvekugadzira zvefluoropolymers zvinofanirwa kugadzirwa kubva kune corrosion-resistant alloys nekuda kweiyo corrosive compound inogona kugadzirwa kana fluoropolymers ichipisa pamusoro penzvimbo dzadzo dzakanyungudika.Yakakwira yakanyunguduka viscosity yeaya resin ingangoda hupfu hwakawanda uye yakakwirira yekumanikidza rating michina.
PTFE inogadziriswa uchishandisa simbi poda-processing matekiniki umo preform inoumbwa uye "yakasvibiswa."Compression molding inogonawo kushandiswa kugadzira zvikamu zvePTFE.PTFE dispersions inoshandiswa nemaitiro akafanana kune mamwe machira.Namira extrusion umo PTFE inosanganiswa nehydrocarbon, isati yaumba preform, inoshandiswa kuramba ichigadzira PTFE kuita machubhu, matepi, uye kuvharisa waya.Iyo hydrocarbon inonyungudika chikamu chisati chapiswa.
PVF inoparadzirwa mu polar latent solvent yakadai se dimethyl acetamide uye inonyunguduka-yakanyungudutswa se plastisol, inoteverwa nekubviswa kwe solvent nekuoma.
Applications
Zvimiro zvefluoropolymers zvakatungamira kune maapplication zvinosanganisira kupikisa kwemakemikari, kugadzikana kwekupisa, cryogenic zvimiro, yakaderera coefficient of friction, yakaderera pamusoro pesimba, yakaderera dielectric kugara, yakakwirira vhoriyamu uye pamusoro resistivity, uye murazvo kuramba.Fluoropolymers inoshandiswa se liner (process surface) nekuda kwekudzivisa kwavo kurwiswa kwemakemikari.Ivo vanopa yakasimba, yakaderera kuchengetedza, uye ehupfumi dzimwe nzira kune ekunze simbi kuti ishandiswe pakupisa kwakanyanya pasina kuunza tsvina.Zvivakwa zvemagetsi zvinoita kuti fluoropolymers ive yakakosha mumagetsi nemagetsi maapplication semainsulators, semuenzaniso, FEP mukufambiswa kwemashoko.
Mumidziyo yemotokari uye yehofisi, michina yefluoropolymers inobatsira mumabhengi akadzikama uye zvisimbiso zvinoramba kurwiswa nemahydrocarbon uye mamwe madhiri.Mukugadzirisa chikafu, Chikafu neDrug Administration yakatenderwa magiredhi efluoropolymer zvinhu zvekugadzira zvemidziyo nekuda kwekupokana kwavo neoiri nemidziyo yekuchenesa, uye yavo yekudzivirira-tsvimbo uye yakaderera friction.Mumidziyo yemba, mafluoropolymers anoiswa seasina chibatiso coating for cookware uye mudziyo wemidziyo.Zvinyorwa zvekurapa zvakadai sezvigamba zvekuvhiyiwa uye majekiseni emwoyo anovimba nekugadzikana kwenguva refu kwefluoropolymers pamwe chete nekuderera kwepasi simba uye makemikari kuramba.
Kune nhandare dzendege, nhandare, uye zvimwe zvimiro, girazi fiber jira rakaputirwa nePTFE rinogadzirwa kuti rive denga remba uye zvivharo.PTFE inopa yakanakisa kuramba kwemamiriro ekunze, kusanganisira kuratidzwa nemwaranzi yeUV muchiedza chezuva, kuramba kwemurazvo wekuchengetedza, uye kuderera kwesimba rekudzivirira kwevhu, uye kuchenesa nyore.
Nguva yekutumira: May-30-2018