Ea bone, ts'ebeliso eapolyimide:
Ka lebaka la litšoaneleho tsa polyimide e boletsoeng ka holimo ts'ebetsong le k'hemistri ea maiketsetso, ho thata ho fumana mefuta e mengata ea lisebelisoa tse kang polyimide har'a li-polymers tse ngata, 'me e bontša ts'ebetso e tsotehang haholo likarolong tsohle..
1. Filimi: Ke e 'ngoe ea lihlahisoa tsa pele tsa polyimide, e sebelisetsoang ho koala li-motor le lisebelisoa tsa ho phuthela bakeng sa likhoele.Lihlahisoa tse ka sehloohong ke DuPont Kapton, Ube Industries' Upilex series le Zhongyuan Apical.Lifilimi tsa Transparent polyimide li sebetsa e le li-solar cell substrates tse tenyetsehang.
2. Ho roala: ho sebelisoa e le varnish e sireletsang bakeng sa terata ea motlakase, kapa e sebelisoa e le seaparo se phahameng sa mocheso.
3. Lisebelisoa tse tsoetseng pele tse kopantsoeng: tse sebelisoang sebakeng sa sefofane, lifofane le likarolo tsa rocket.Ke e 'ngoe ea lisebelisoa tsa sebopeho tse hanyetsanang le mocheso o phahameng ka ho fetisisa.Ka mohlala, lenaneo la US supersonic airliner le entsoe ka lebelo la 2.4M, mocheso oa holim'a metsi oa 177 ° C nakong ea sefofane, le bophelo bo hlokahalang ba tšebeletso ea 60,000h.Ho latela litlaleho, 50% ea thepa ea meralo e ikemiselitse ho sebelisa thermoplastic polyimide joalo ka resin ea matrix.Lisebelisuoa tse kopantsoeng tsa carbon fiber, palo ea sefofane ka seng e ka ba 30t.
4. Fiber: Modulus ea elasticity ke ea bobeli ho feta carbon fiber.E sebelisoa e le thepa ea sefe bakeng sa mecha ea litaba ea mocheso o phahameng le lintho tse nang le mahlaseli a kotsi, hammoho le masela a thibelang likulo le a sa cheng.
5. Polasetiki ea foam: e sebelisoa e le lisebelisoa tse thibelang mocheso o phahameng.
6. Lipolasetiki tsa boenjiniere: Ho na le mefuta ea thermosetting le thermoplastic.Mefuta ea thermoplastic e ka bōptjoa kapa ea etsoa ka ente kapa ea fetisoa.Haholo-holo e sebelisoa bakeng sa ho itlotsa, ho tiisa, ho kenya letsoho le lisebelisoa tsa sebopeho.Lisebelisoa tsa Guangcheng polyimide li se li qalile ho sebelisoa likarolong tsa mochini tse kang li-compressor rotary vanes, mehele ea piston le litiiso tse khethehileng tsa pompo.
7. Sekhomaretsi: se sebelisoa e le sekhomaretsi sa sebopeho sa mocheso o phahameng.Sekhomaretsi sa Guangcheng polyimide se hlahisitsoe e le motsoako o phahameng oa insulation bakeng sa likarolo tsa elektroniki.
8. Lera la ho arohana: le sebelisetsoa ho arola lipara tse sa tšoaneng tsa khase, tse kang hydrogen / nitrogen, nitrogen / oxygen, carbon dioxide / nitrogen kapa methane, joalo-joalo, ho tlosa mongobo o tsoang moeeng oa khase ea phepelo ea hydrocarbon le joala.E ka boela ea sebelisoa e le lera la pervaporation le lera la ultrafiltration.Ka lebaka la ho hanyetsa mocheso le khanyetso ea organic solvent ea polyimide, ke ea bohlokoa bo khethehileng karohanong ea likhase tsa tlhaho le metsi.
9. Photoresist: Ho na le mehano e mpe le e ntle, 'me qeto e ka fihla boemong ba submicron.E ka sebelisoa filiming ea filthara ea mebala hammoho le li-pigments kapa dae, tse ka nolofatsang ts'ebetso ea ts'ebetso haholo.
10. Kopo ka lisebelisoa tsa microelectronic: e le lesela la dielectric bakeng sa ho kenngoa ha interlayer, e le lesela la buffer ho fokotsa khatello ea kelello le ho ntlafatsa chai.Joaloka lera le sireletsang, e ka fokotsa tšusumetso ea tikoloho ho sesebelisoa, hape e ka sireletsa li-a-particles, ho fokotsa kapa ho felisa phoso e bonolo (bonolo) ba sesebelisoa.
11. Moemeli oa ho tsamaisana bakeng sa pontšo ea kristale ea metsi:Polyimidee bapala karolo ea bohlokoa haholo molemong oa lisebelisoa tsa alignment tsa TN-LCD, SHN-LCD, TFT-CD le ponts'o ea kristale ea mokelikeli oa nakong e tlang.
12. Lisebelisoa tsa Electro-optic: tse sebelisoang e le lisebelisoa tsa maqhubu a motlakase kapa tse sebetsang, lisebelisoa tsa optical switch, joalo-joalo Fluorine e nang le polyimide e na le pepenene ho leqhubu la maqhubu a puisano, 'me ho sebelisa polyimide e le matrix a chromophore ho ka ntlafatsa ts'ebetso ea thepa.botsitso.
Ho akaretsa, ha ho thata ho bona hore na ke hobaneng ha polyimide e ka ikhetha ho tsoa ho lipolymer tse ngata tse nkhang hamonate tsa heterocyclic tse hlahileng lilemong tsa bo-1960 le bo-1970, 'me qetellong ea fetoha sehlopha sa bohlokoa sa lisebelisoa tsa polymer.
5. Maikutlo:
E le thepa e tšepisang ea polymer,polyimidee 'nile ea hlokomeloa ka ho feletseng,' me ts'ebeliso ea eona ho thepa e sireletsang le lisebelisoa tsa mohaho e ntse e eketseha kamehla.Mabapi le lisebelisoa tse sebetsang, e ntse e hlaha, 'me bokhoni ba eona bo ntse bo hlahlojoa.Leha ho le joalo, ka mor'a lilemo tse 40 tsa tsoelo-pele, ha e e-s'o fetohe mofuta o moholoanyane.Lebaka le ka sehloohong ke hore litšenyehelo li ntse li le holimo haholo ha li bapisoa le li-polymer tse ling.Ka hona, e 'ngoe ea litsela tse ka sehloohong tsa lipatlisiso tsa polyimide nakong e tlang e ntse e lokela ho ba ho fumana litsela tsa ho fokotsa litšenyehelo ho motsoako oa monoma le mekhoa ea polymerization.
1. Synthesis of monomers: Li-monomers tsa polyimide ke dianhydride (tetraacid) le diamine.Mokhoa oa ho kopanya oa diamine o batla o hōlile, 'me li-diamine tse ngata le tsona li fumaneha khoebong.Dianhydride ke monoma e batlang e khethehile, e sebelisoang haholo ha ho etsoa polyimide ntle le ho phekola epoxy resin.Pyromellitic dianhydride le trimellitic anhydride e ka fumanoa ka mohato o le mong oa khase le oxidation ea mokelikeli oa durene le trimethylene e ntšitsoeng oli e nkhang hamonate e boima, sehlahisoa sa petroleum refining.Li-dianhydride tse ling tsa bohlokoa, tse kang benzophenone dianhydride, biphenyl dianhydride, diphenyl ether dianhydride, hexafluorodianhydride, joalo-joalo, li entsoe ka mekhoa e sa tšoaneng, empa litšenyehelo li theko e boima haholo.li-yuan tse likete tse leshome.E thehiloe ke Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 4-chlorophthalic anhydride e hloekileng le 3-chlorophthalic anhydride e ka fumanoa ho tloha ho o-xylene chlorination, oxidation le karohano ea isomerization.Ho sebelisa metsoako ena e 'meli e le lisebelisoa tse tala ho ka kopanya Series dianhydrides, e nang le monyetla o moholo oa ho fokotsa litšenyehelo, ke tsela ea bohlokoa ea maiketsetso.
2. Mokhoa oa polymerization: Mokhoa o sebelisoang hona joale oa mehato e 'meli le mohato o le mong oa polycondensation kaofela o sebelisa li-solvents tse belang haholo.Theko ea li-solvents tsa aprotic polar e batla e phahame, 'me ho thata ho e tlosa.Qetellong, phekolo e phahameng ea mocheso e hlokahalang.Mokhoa oa PMR o sebelisa setlolo sa joala se theko e tlaase.Thermoplastic polyimide e ka boela ea etsoa polymerized le granulated ka ho toba ka extruder ka dianhydride le diamine, ha ho solvent e hlokahalang, 'me katleho e ka ntlafatsoa haholo.Ke eona tsela e sebetsang ka ho fetesisa ea moruo ea ho fumana polyimide ka ho etsa polymerizing chlorophthalic anhydride ka kotloloho ka diamine, bisphenol, sodium sulfide kapa elemental sulfure ntle le ho feta ka dianhydride.
3. Ho sebetsa: Tšebeliso ea polyimide e pharaletse haholo, 'me ho na le litlhoko tse fapaneng tsa ho sebetsa, tse kang ho lumellana ho phahameng ha ho etsoa ha filimi, ho phunya, ho behoa ha mouoane, sub-micron photolithography, Etching e tebileng e otlolohileng ea lebota, sebaka se seholo, se seholo- ho bopa ha molumo, ho kenngoa ha ion, ho sebetsa ka mokhoa o nepahetseng ka laser, theknoloji ea nano-scale hybrid, joalo-joalo li butse lefatše le pharaletseng bakeng sa tšebeliso ea polyimide.
Ka ntlafatso e tsoelang pele ea theknoloji ea ts'ebetso ea theknoloji ea ho kopanya le phokotso e kholo ea litšenyehelo, hammoho le thepa ea eona e phahameng ea mochini le thepa ea ho kenya motlakase, thermoplastic polyimide e tla bapala karolo e hlahelletseng lefapheng la thepa nakong e tlang.'Me thermoplastic polyimide e na le tšepo e kholo ka lebaka la ts'ebetso ea eona e ntle.
6. Qetello:
Lintlha tse 'maloa tsa bohlokoa bakeng sa tsoelo-pele e liehang eapolyimide:
1. Ho lokisetsa lihlahisoa tse tala bakeng sa tlhahiso ea polyimide: ho hloeka ha pyromellitic dianhydride ha hoa lekana.
2. Lintho tse tala tsa pyromellitic dianhydride, ke hore, tlhahiso ea durene e lekanyelitsoe.Tlhahiso ea machaba: lithane tse 60,000 / selemo, tlhahiso ea malapeng: lithane tse 5,000 / selemo.
3. Theko ea tlhahiso ea pyromellitic dianhydride e phahame haholo.Lefatšeng, hoo e ka bang lithane tse 1.2-1.4 tsa durene li hlahisa 1 tonne ea pyromellitic dianhydride, ha baetsi ba molemo ka ho fetisisa naheng ea heso ba hlahisa lithane tse ka bang 2.0-2.25 tsa durene.lithane, feela Changshu Federal Chemical Co., Ltd. e fihlileng ho lithane tse 1.6/ton.
4. Tekanyo ea tlhahiso ea polyimide e nyane haholo hore e ka etsa indasteri, 'me likarolo tse ka thōko tsa polyimide li ngata ebile li rarahane.
5. Likhoebo tse ngata tsa lehae li na le tlhokomeliso ea tlhokahalo ea setso, e fokotsang sebaka sa kopo ho mefuta e itseng.Ba tloaetse ho sebelisa lihlahisoa tsa kantle ho naha pele kapa ba bona lihlahisoa tsa kantle ho naha pele ba li batla China.Litlhoko tsa khoebo ka 'ngoe li tsoa litlhoko tsa bareki ba tlase ba khoebo, maikutlo a tlhahisoleseling le tlhaiso-leseling;likanale tsa mohloli ha li boreleli, ho na le lihokelo tse ngata tse mahareng, 'me bongata ba tlhaiso-leseling e nepahetseng ha bo sebetse hantle.
Nako ea poso: Feb-13-2023