Kodi PVDF material ndi chiyani?
Polyvinylidene Fluoride (PVDF) ndi chinthu chogwira ntchito kwambiri chomwe chimagwiritsidwa ntchito kwambiri m'mafakitale opanga mankhwala ndi kupanga, ndipo chimakondedwa chifukwa cha kukana kwake kwamankhwala, mphamvu zamagetsi komanso mphamvu zamakina. M'nkhaniyi, tisanthula mwatsatanetsatane zomwe PVDF ndi, katundu wake, ntchito ndi ndondomeko kupanga kukuthandizani kumvetsa ubwino wa nkhaniyi.
Choyamba, zoyambira za PVDF
PVDF ndi semi-crystalline thermoplastic fluoropolymer, makamaka polima kuchokera ku vinylidene fluoride (VDF) monomer. Chifukwa cha kuchuluka kwa electronegativity ya atomu ya fluorine komanso mphamvu ya mgwirizano wa CF, PVDF ikuwonetsa zinthu zotsatirazi:

Chemical resistance: PVDF imalimbana kwambiri ndi ma acid ambiri, alkalis, salt ndi zosungunulira, zomwe zimapangitsa kuti ikhale yokhazikika komanso yosagwira dzimbiri m'makampani opanga mankhwala pakapita nthawi.

Mphamvu zamakina: PVDF ili ndi mphamvu zolimba kwambiri komanso kukana kukhudzidwa, zomwe zimapangitsa kuti izikhalabe zolimba m'malo ovuta.

Katundu wamagetsi: Chifukwa cha kuchepa kwa dielectric kosasintha komanso kutsekereza kwambiri, PVDF imagwiritsidwa ntchito kwambiri m'magawo amagetsi ndi zamagetsi, makamaka ngati chotchingira chosanjikiza mawaya ndi zingwe.

Kukhazikika kwa kutentha: PVDF ili ndi kukhazikika kwabwino kwa kutentha ndipo ingagwiritsidwe ntchito pa kutentha kosiyanasiyana, ndipo nthawi zambiri imatha kusunga mawonekedwe ake pa kutentha kwa -40 ° C mpaka 150 ° C.

Chachiwiri, kupanga kwa PVDF
Kupanga kwa PVDF kumachitika makamaka kudzera mu polymerisation yaulere, nthawi zambiri ndi njira yothetsera ma polymerisation kapena kuyimitsidwa kwa polymerization. Mu njira polymerization, VDF monomers ndi polymerised mu PVDF polima pansi zinthu zinachitikira. Pambuyo pake, kudzera m'njira zingapo pambuyo pa chithandizo, kuphatikizapo kuyeretsedwa, kutulutsa ndi granulation, mapangidwe omaliza a mankhwala a PVDF okhala ndi zinthu zenizeni zakuthupi.
Chachitatu, madera ogwiritsira ntchito PVDF
PVDF yakhala ikugwiritsidwa ntchito kwambiri m'mafakitale ambiri chifukwa chakuchita bwino kwambiri:

Makampani a Chemical: PVDF imagwiritsidwa ntchito kwambiri popanga zotengera zosiyanasiyana zamakhemikolo, mapaipi ndi mavavu, makamaka panthawi yophatikiza mankhwala owononga.

Makampani omanga: PVDF imagwiritsidwa ntchito popanga zokutira zowoneka bwino kwambiri, monga zokutira za fluorocarbon, zomwe zimagwiritsidwa ntchito kuteteza makoma akunja a nyumba, ndipo zimatha kusunga kukongola kwa nyumbazo kwa nthawi yayitali chifukwa cha UV komanso zolimbana ndi ukalamba.

Makampani opanga zamagetsi ndi zamagetsi: PVDF imagwiritsidwa ntchito kwambiri popanga zingwe, zolumikizira ndi ma diaphragms a batri ya lithiamu chifukwa chamagetsi ake abwino kwambiri komanso kukana kutentha.

Makampani opangira madzi: Zida za PVDF zimagwiritsidwa ntchito pochiza madzi, makamaka muzitsulo za ultrafiltration ndi nanofiltration, zomwe zimayamikiridwa chifukwa cha kukana kwawo kwa mankhwala komanso kusefa kwakukulu.

Chachinayi, chiyembekezo chamsika ndi zovuta za PVDF
Chifukwa cha kuwonjezereka kwa mafakitale komanso kuwonjezeka kwa kufunikira kwa zipangizo zamakono, msika wa PVDF ukukula mofulumira.Kukwera mtengo kwapangidwe ndi zovuta za kupanga PVDF kumapangitsa kuti mtengo wake ukhale wokwera mtengo kwambiri. Kugwiritsa ntchito PVDF kumakumananso ndi zovuta zina chifukwa cha zovuta zachilengedwe zokhudzana ndi fluoride. Chifukwa chake, kukhathamiritsa ntchito yopanga ndikuchepetsa kukhudzidwa kwachilengedwe kwa PVDF kudzakhala kofunikira pachitukuko chamtsogolo.
Chidule
Kodi PVDF material ndi chiyani? Kupyolera mu kusanthula pamwambapa, titha kuona kuti PVDF ndi chinthu chapamwamba cha fluoropolymer chomwe chili ndi mwayi wochuluka wogwiritsa ntchito. Kukaniza kwake kwamankhwala abwino kwambiri, mphamvu zamakina, mphamvu zamagetsi ndi kukhazikika kwamafuta zimapangitsa kuti zikhale ndi gawo lofunikira m'magawo ambiri. Ndi kusintha kwa zofunikira zoteteza chilengedwe, kupanga ndi kugwiritsa ntchito PVDF kudzakumananso ndi zovuta ndi mwayi watsopano. Kumvetsetsa ndi kudziŵa bwino za katundu ndi ntchito za PVDF kungapereke chithandizo chofunikira pakupanga zatsopano ndi chitukuko cha mafakitale okhudzana nawo.