PTFE I-Powder Plasma Hydrophilic Treatment
PTFE I-Powder Plasma Hydrophilic Treatment
PTFE powder isetshenziswa kabanzi njengesengezo emigqeni ehlukahlukene esekwe ku-solvent-based kanye ne-powder coatings, njengezingubo zepulasitiki, opende bezinkuni, amakhoyili amakhoyili, ama-UV ephulukisa amapende, nopende, ukuthuthukisa ukusebenza kwawo kokukhishwa kwesikhunta, ukumelana nokuklwebheka kwendawo, ukuthambisa, ukumelana namakhemikhali, ukumelana nesimo sezulu, nokuvimbela amanzi. PTFE ama-micro-powder angasetshenziswa njengesithambiso esiqinile esikhundleni samafutha oketshezi. Angaphinde asetshenziselwe ukuthuthukisa ukugeleza kukayinki kanye ne-ejenti ephikisana nokugqokwa, ngenani elijwayelekile lokungezwa lika-1-3wt%. Angasetshenziswa futhi kuma-non-stick wezingubo zokupheka, ngenani elijwayelekile lokwengezwa elingekho ngaphezu kuka-5wt%. Ukusabalalisa kwe-solvent ye-organic nakho kungasetshenziswa njenge-ejenti yokukhulula. Angasetshenziswa futhi njengama-anti-drip agents asebenza ngempumelelo kumapulasitiki ahlukahlukene, njenge-ABS, i-polycarbonate (PC), i-polyurethane (PU), ne-polystyrene (PS).
PTFE iyi-polymer ecwebe kakhulu eyenziwe ngama-monomers e-tetrafluoroethylene, ene-insulation kagesi enhle kakhulu, i-low surface tension kanye ne-friction coefficient, engashi, ukumelana nokuguga komkhathi, ukuguquguquka okuphezulu nokuphansi kwezinga lokushisa, kanye nezakhiwo eziphezulu zemishini.
Kodwa-ke, ngenxa yesakhiwo sayo esivumelana kakhulu nesingezona i-polar, ukuntuleka kwamaqembu asebenzayo, nokucwebezela okuphezulu, PTFE iyimpahla engeyona i-polar eqinile ene-hydrophobicity eqinile, ukungabi namandla kwamakhemikhali, amandla aphansi angaphezulu, kanye nokumanzisa okungekuhle nokunamathela kwezinye izinto, ezikhawulela kakhulu ukusetshenziswa kwayo. Ngakho-ke, ukwandisa ukusetshenziswa kwe PTFE, indawo yayo kufanele iphathwe ukuze kwandiswe amandla ayo angaphezulu futhi ithuthukise i-hydrophilicity yayo.
Ukwelashwa kwe-Plasma kungenye yezindlela zobuchwepheshe ezithuthuka ngokushesha PTFE ukuguqulwa komhlaba eminyakeni yamuva. Umgomo wokuguqulwa kwe-plasma ukusebenzisa ibhomu ye-ion noma umjovo ebusweni be-polymer ukukhiqiza amabhondi aphukile noma ukwethula amaqembu asebenzayo, ngaleyo ndlela kusebenze indawo engaphezulu ukuze kuthuthukiswe ukunamathela kwendawo yezinto ezibonakalayo. Amagesi avamile asetshenziswa afaka umoya-mpilo, i-hydrogen, i-nitrogen, i-carbon tetrafluoride, ne-argon. Ukuqhuma kwamabhomu kwe-plasma yegesi engasebenzi kungashintsha ukwakheka kwendawo ye-copolymer.
I-Plasma iqukethe izinhlayiya ezisebenzayo njengama-electron, ama-ion, nama-radicals mahhala. Ukuguqulwa kobuso be-plasma kuhlanganisa ukuguqulwa ngokomzimba namakhemikhali. Ukuguqulwa komzimba ukuqhuma kwama-electron nama-ion endaweni ye-polymer, ephula izibopho zamakhemikhali zeketango le-polymer, kubangele ukusabela kokuwohloka, futhi kwakha imikhiqizo eyonakalisayo efakwa endaweni ye-polymer. Ukuguqulwa kwamakhemikhali kuhilela ukwethula amaqembu asebenzayo ngokusebenzisa ama-radicals amahhala asabela nge-polymer surface, ukushintsha ukwakheka kwamakhemikhali okungaphezulu. Kokubili ukuguqulwa komzimba namakhemikhali kuzodala izinguquko ezindaweni ezingaphezulu. Ngesikhathi sokwelashwa kwe-plasma, ukwethulwa kwamaqembu asebenzayo kanye nokusabela kokuwohloka akukwazi ukuhlukaniswa kodwa kwenzeka kanyekanye, futhi ukusabela kokuwohloka akunakugwenywa. Isihluthulelo sokuguqulwa okusebenzayo kwendawo ukunciphisa ukusabela kokwehliswa nokukhulisa indima yesingeniso seqembu elisebenzayo.
The PTFE ukuguqulwa kwempushana kusebenzisa umshini wokuhlanza iplasma oyimpuphu. I-Plasma isebenza ku-powder ukuze iguqule ngamabomu izakhiwo zayo ezingokwenyama namakhemikhali, kuyilapho igcina izakhiwo zokuqala zempushana, ukuyinika izindawo ezintsha ezingaphezulu, ishintsha izindawo zayo ezingaphezulu ukusuka ku-hydrophobic kuya ku-hydrophilic noma okuphambene nalokho, ngaleyo ndlela ithuthukise ukumanzisa kwezinhlayiya ze-powder. ukuthuthukisa ukunamathela kwezinhlayiya zempushana phakathi nendawo.
PTFE I-Powder Plasma Hydrophilic Treatment