Ma silicones, omwe amadziwikanso kuti ma polysiloxanes, ndi ma polima omwe amaphatikizapo inert iliyonse, yopangidwa ndi mayunitsi obwerezabwereza a siloxane, omwe ndi unyolo wa maatomu a silicon ndi maatomu okosijeni, omwe nthawi zambiri amaphatikizidwa ndi kaboni ndi/kapena haidrojeni.Nthawi zambiri zimakhala zosagwira kutentha komanso ngati mphira, ndipo zimagwiritsidwa ntchito ngati zosindikizira, zomatira, zothira mafuta, mankhwala, ziwiya zophikira, komanso kutchinjiriza kwamafuta ndi magetsi.Mitundu ina yodziwika bwino ndi monga mafuta a silicone, mafuta a silicone, mphira wa silicone, utomoni wa silikoni, ndi silicone caulk.Ma silicones ali amitundu itatu: 1. silicones yowongoka;2. cyclic silicones;3. silicones crosslinked.
Paipi yaukhondo imakhudzanso machitidwe a mankhwala opangira mankhwala.Zikhale zonyamula matanki, zodzipatula zama cell, ma CIP jumper kapena zina mwazinthu khumi ndi ziwiri, misonkhano yapaipi yaukhondo ili paliponse.Ayenera kukhala owumitsa nthunzi kapena autoclave popanda kuwonongeka.Pali zida ziwiri zokha zomwe zimakwaniritsa zofunikira zamankhwala kupatula kutsatira malangizo a FDA: silikoni yolimba yolimba komanso PTFE (polima).Ndi iti yomwe ili yabwino kugwiritsa ntchito?Zimatengera kugwiritsa ntchito komanso zotsatira zomwe tikuyesera kukwaniritsa:
Katundu Wokhazikika wa Silicone
Wopepuka wolemera kwambiri Ma Silicones Oyera salola kuti mpweya kapena madzi amadzimadzi adutse Odziwika chifukwa cha kukhalitsa kwake komanso kuthekera kwake kolimbana ndi kusintha kwamankhwalaKutha kugwiritsidwa ntchito m'malo osabala komanso kupirira kutentha kwambiri ndi kutentha kwambiri (kuphatikiza kugwiritsa ntchito cryogenic) m'chilengedwe adadziwika kuti silicones.Chifukwa chakuti amagwiritsidwa ntchito kwambiri, amafalikira, amawonongeka mosavuta, monga momwe amapangidwira ndi dongo zosiyanasiyana.
PTFE Hose Properties
● Yolemera pang'ono (poyerekeza ndi silikoni) ● Yolimba kuposa silikoni (ingakhale yofunikira kapena yosafunidwa malinga ndi momwe ikugwiritsidwira ntchito) ● Pirolysis ya PTFE imazindikirika pa 200 °C (392 °F), ndipo imaphatikizapo mipweya yambiri ya fluorocarbon ndi sublimate.
Chifukwa chake, ndi chisankho chiti chabwino cha payipi?Ngakhale kuti ntchito yogwiritsira ntchito imakhala yofunika pamene kusiyana kwa mtengo pakati pa awiriwa sikofunikira kwenikweni.Ma hoses a PTFE mwina amakonda ngati mutalowa m'mapulogalamu apamwamba kuposa 100 PSI.Koma ngati mukufuna china chake chopepuka komanso chosinthika ngati chojambulira chachifupi cha cell, silikoni imagwira ntchito bwino.
PS: Lumikizanani nafe PTFE anamaliza mankhwala free chitsanzo
Nthawi yotumiza: Nov-03-2017