Polyethylene (PE), Polypropylene (PP), ndi Polyvinyl Chloride (PVC) ndi mwala wapangodya m'mafakitale osawerengeka, kuchokera pamapaketi osinthika ndi zotengera zolimba kupita ku zida zamankhwala ndi zida zamagalimoto. Komabe, kugwiritsidwa ntchito kwawo kofala kumatsagana ndi vuto lalikulu lokonzekera: kusamata bwino pamwamba. Zida monga PE ndi PP sizikhala-zopanda polar ndipo zimakhala ndi mphamvu zochepa, zomwe zimapangitsa kuti zisagwirizane ndi inki, zokutira, ndi zomatira. Makhalidwewa amatsogolera ku zolakwika zomwe zimafala monga kuphwanya kwa inki, kuphulika, ndi zomangira zofooka, zomwe zimasokoneza khalidwe la malonda, kulimba, ndi kukhulupirika kwa mtundu. Chithandizo cha Corona discharge chadziwika ngati njira yothandiza kwambiri,-yokhazikika pamakampani pazovuta zomwe zafalazi, zosintha ma polima kuti zitheke kugwira ntchito kwake.
Njira Zaukadaulo Zochizira Corona
Chithandizo cha Corona chimagwira ntchito popanga-kutentha kwa madzi a m'magazi otsika ndi kuthamanga kwa mumlengalenga kudzera-pamagetsi otulutsa mphamvu kwambiri. Izi zimapangitsa kuti mpweya wozungulira ukhale wozungulira, ndikupanga ma elekitironi amphamvu, ma ion, osalowerera ndale, ndi ma photon omwe amawombera pamwamba pa pulasitiki. Chotsatira chachikulu ndikuyambitsa magulu a polar (monga carbonyl, hydroxyl, ndi carboxyl magulu) pa unyolo wa polima. Kusintha kwamankhwala kumeneku kumawonjezera kwambiri mphamvu yapamtunda ndi kunyowa kwa pulasitiki yomwe ilibe inert. Malo ochizidwawo amakhala otakasuka, kupereka malo ogwira ntchito a inki, zomatira, ndi zokutira kuti apange zomangira zolimba zamakina ndi mankhwala, potero zimakulitsa magwiridwe antchito amamatira.
Zofunika-Zosintha Mwachindunji ndi Zopindulitsa
Ngakhale mfundo yayikulu imagwira ntchito mokulira, kusinthika kwa ma corona processing kuyenera kuganizira zapadera za polima iliyonse.
Polyethylene (PE) & Polypropylene (PP): Ma polyolefin awa ali ndi hydrophobic kwambiri ndipo amayimira magawo omwe amagwiritsidwa ntchito kwambiri pochiza corona. Chithandizochi n'chofunika kwambiri kuti tipeze kusindikiza kwaulere, kopanda pake{1}}pakuyika mafilimu ndi kutsimikizira zosindikizira zolimba, zodalirika mu -zikwama zosanjikizana ndi matumba-okweza. M'mabotolo-opangidwa ngati mabotolo a HDPE kapena machubu a PP, mankhwala a corona asanalembe zilembo kapena kusindikiza pa skrini ndikofunikira kuti apeze zithunzi zapamwamba-zomata, zamadzi{7}}zosamva kugwidwa ndi kukhudzidwa ndi chilengedwe.
Polyvinyl Chloride (PVC): Ngakhale PVC ili ndi polarity yochulukirapo kuposa ma polyolefin, chithandizo cha corona chimagwiritsidwabe ntchito mobwerezabwereza kuti chiwongolere magwiridwe ake. Imawonetsetsa kumamatira kwapamwamba kwa utoto, zokutira, ndi makanema omatira omwe amagwiritsidwa ntchito m'magawo monga zomangamanga (mwachitsanzo, mawindo a zenera) ndi zikwangwani, kumapangitsa kulimba komanso kumaliza.
Kupitilira izi, ukadaulo ndiwofunikanso kwambiri pantchito yopanga nsalu popangira ulusi wopangidwa monga poliyesitala ndi nayiloni-zida zomwe zimafanana ndi zovuta za hydrophobic ndi PP-kuwongolera kutengera utoto komanso kumamatira.
Key Industrial Applications
Kutha kusintha malo apulasitiki modalirika kwapangitsa chithandizo cha corona kukhala chofunikira kwambiri-mafakitale angapo amtengo wapatali:
1. Kupaka: Ili ndiye gawo lalikulu kwambiri lofunsira. Amagwiritsidwa ntchito kwambiri m'zakudya, zamankhwala, ndi m'mapaketi amankhwala kuti asunge chizindikiro cha chizindikiro, kupewa kuphulika kwa inki, ndikupanga malo osabala, osindikizidwa bwino. Imawonjezera kumamatira kwa zokutira zotchinga, zomwe ndizofunikira kuti zinthu zisungidwe.
2. Zolemba Zamalonda ndi Kukongoletsa: Kwa katundu wogula monga zinthu zowasamalira, zotsukira m'nyumba, ndi zakumwa, chithandizo cha corona chimatheketsa kusindikiza,{0}}kwapamwamba kwambiri{0}}kusindikiza ndi kulemba zilembo pamabokosi a PE, PP, ndi PVC, kukhudza mwachindunji kukopa kwa shelufu ndi kawonekedwe ka mtundu.
3. Kutembenuza Kwapadera: Kukonzekera kwa machubu apulasitiki a zodzoladzola ndi mankhwala kumadalira ochepa ogulitsa apadera. Apa, ochiritsa ma corona ndi zida zofunika kukongoletsa machubuwa moyenera, zomwe zimafunikira mgwirizano wapakati pakati pa ogulitsa makina ndi ma processor kuti akwaniritse njira zopangira.
Zida ndi Kukhazikitsa
Chithandizo cha corona cha mafakitale chimaperekedwa ndi zida zokhazikika kutengera ma filamentary dielectric barrier discharge system (DBD). Msika wapadziko lonse wa ogulitsa malonda, kuphatikiza makampani ngati Enercon (USA), Ahlbrandt (Germany), Softal (Germany), ndi Vetaphone (Denmark), amapereka othandizira awa. Makinawa akhoza kukonzedwa kuti azigwiritsidwa ntchito m'mbali imodzi-, zomwe ndizofala m'mafilimu, kapena kuti azikonza motsatizana-mbali ziwiri ngati pangafunike. Kusankhidwa kwa zida kumatengera gawo lapansi, m'lifupi mwa ukonde, liwiro la kupanga, komanso mulingo womwe mukufuna.
Mapeto ndi Future Outlook
Chithandizo cha Corona pamwamba chimakhalabe chokhwima, chodula-chogwira ntchito, komanso chofunika kwambiri posintha zipangizo za PE, PP, ndi PVC kuti zigwirizane ndi zofunikira zopanga zamakono. Posintha malo apulasitiki opanda mpweya kukhala nsanja zolandirira zokongoletsa ndi zomangira, zimawonetsetsa kuti zinthu zikuyenda bwino, zabwino zake, komanso kudalirika popaka, kusindikiza, ndikusintha magwiridwe antchito. Pomwe makampaniwa akupitiliza kupanga zatsopano zophatikizika ndi ma polima ndi zida zokhazikika, gawo lofunikira la chithandizo cha corona pothandizira kugwiritsa ntchito kwawo likuyembekezeka kupitilirabe ndikusintha. Zomwe zikuchitika m'tsogolomu zitha kuyang'ana kwambiri pakuwongolera mphamvu kwamphamvu, kuphatikizika ndi kuyang'anira bwino kwabwino, ndikusintha masinthidwe azinthu zama polima-zotengera kapena zowola zomwe zimalowa pamsika.