PTFE Chithandizo cha Powder Plasma Hydrophilic
PTFE Chithandizo cha Powder Plasma Hydrophilic
PTFE ufa chimagwiritsidwa ntchito ngati chowonjezera mu zokutira zosiyanasiyana zosungunulira ndi zokutira ufa, monga zokutira pulasitiki, utoto matabwa, zokutira koyilo, UV kuchiritsa zokutira, ndi utoto, kupititsa patsogolo nkhungu kumasulidwa kwawo ntchito, pamwamba zikande kukana, lubricity, mankhwala kukana, kukana nyengo, ndi kuletsa madzi. PTFE ufa waung'ono utha kugwiritsidwa ntchito ngati mafuta olimba m'malo mwa mafuta opangira madzi. Atha kugwiritsidwanso ntchito kupititsa patsogolo kayendedwe ka inki komanso ngati anti-wear agent, ndi kuchuluka kowonjezera kwa 1-3wt%. Atha kugwiritsidwanso ntchito ngati zokutira zosamata pazophikira, zomwe zimawonjezera zosaposa 5wt%. Kubala kwa zosungunulira za organic kungagwiritsidwenso ntchito ngati chotulutsa. Atha kugwiritsidwanso ntchito ngati othandizira kwambiri odana ndi kugwa mu mapulasitiki osiyanasiyana, monga ABS, polycarbonate (PC), polyurethane (PU), ndi polystyrene (PS).
PTFE ndi polymer ya crystalline kwambiri yopangidwa kuchokera ku monomers ya tetrafluoroethylene, yokhala ndi magetsi abwino kwambiri, kutsekemera kwapansi pamtunda ndi friction coefficient, kusatentha, kukana kukalamba kwa mlengalenga, kusinthasintha kwapamwamba ndi kutsika kwa kutentha, ndi makina apamwamba kwambiri.
Komabe, chifukwa cha mawonekedwe ake ofananirako komanso osakhala a polar, kusowa kwamagulu ochitapo kanthu, komanso crystallinity yayikulu, PTFE ndi zinthu zopanda polar ndi hydrophobicity amphamvu, inertness mankhwala, otsika pamwamba mphamvu, ndi osauka wettability ndi kumamatira ku zipangizo zina, amene kwambiri malire ntchito yake. Choncho, kuwonjezera ntchito ya PTFE, pamwamba pake iyenera kuthandizidwa kuti iwonjezere mphamvu zake pamwamba ndikuwongolera hydrophilicity yake.
Chithandizo cha plasma ndi imodzi mwamaukadaulo omwe akukula mwachangu PTFE kusinthidwa pamwamba m'zaka zaposachedwa. Mfundo yakusintha kwa plasma ndikugwiritsa ntchito bombardment ya ion kapena jekeseni pamwamba pa polima kuti apange zomangira zosweka kapena kuyambitsa magulu ogwirira ntchito, motero ndikuyambitsa pamwamba kuti zinthuzo zizimatira. Mipweya yodziwika bwino yomwe imagwiritsidwa ntchito ndi monga oxygen, haidrojeni, nayitrogeni, carbon tetrafluoride, ndi argon. Kuphulika kwa plasma ya gasi ya inert kungasinthe mawonekedwe apamwamba a copolymer.
Plasma imakhala ndi tinthu tating'onoting'ono monga ma electron, ma ion, ndi ma free radicals. Kusintha kwamadzi a plasma kumaphatikizapo kusintha kwakuthupi ndi kwamankhwala. Kusintha kwathupi ndikuphulitsidwa kwa ma electron ndi ma ion pamtunda wa polima, komwe kumaphwanya zomangira zamakemikolo a unyolo wa polima, kumayambitsa kuwonongeka, ndikupanga zinthu zowonongeka zomwe zimayikidwa pamwamba pa polima. Kusintha kwa Chemical kumaphatikizapo kuyambitsa magulu ogwira ntchito kudzera mu ma radicals aulere omwe amachitira ndi polima pamwamba, kusintha kapangidwe kake kapamwamba. Kusintha kwa thupi ndi mankhwala kumayambitsa kusintha kwa zinthu zapamtunda. Panthawi ya chithandizo cha plasma, kukhazikitsidwa kwa magulu ogwira ntchito ndi machitidwe owonongeka sikungalekanitsidwe koma kumachitika nthawi imodzi, ndipo zowonongeka ndizosapeŵeka. Chinsinsi cha kusinthika kwapamwamba kwapamwamba ndikuchepetsa zomwe zingachitike ndikukulitsa gawo loyambitsa gulu logwira ntchito.
The PTFE kusinthidwa kwa ufa kumagwiritsa ntchito makina oyeretsa a plasma. Plasma imagwira ntchito pa ufa kuti isinthe mwadala zinthu zake zakuthupi ndi zamankhwala, ndikusunga mawonekedwe ake oyambirira a ufa, kuupatsa malo atsopano apamwamba, kusintha mawonekedwe ake apamwamba kuchokera ku hydrophobic kupita ku hydrophilic kapena mosemphanitsa, motero kumapangitsa kuti tinthu tating'onoting'ono tomwe tiwonongeke komanso kuti tiwonongeke. kukulitsa kumamatira kwa tinthu tating'onoting'ono m'kati.
PTFE Chithandizo cha Powder Plasma Hydrophilic