I-PPO
Ukusebenza kwe-PPO
I-Polyphenylether iyi-poly2, i-6-dimethyl-1, i-4-phenylether, eyaziwa nangokuthi i-polyphenyloxy, i-Polyphenyleneoxiole (PPO), i-polyphenylether eguquliwe iguqulwa yi-polystyrene noma amanye ama-polymers (MPPO).
I-PPO iwuhlobo lwepulasitiki lobunjiniyela olusebenza kahle kakhulu olubanzi, ubulukhuni obuphakeme kune-PA, i-POM, i-PC, amandla aphezulu emishini, ukuqina okuhle, ukumelana nokushisa okuhle (izinga lokushisa elishisayo le-deformation engu-126 ℃), ukuzinza okuphezulu kobukhulu (izinga lokushwabana lika-0.6%) , izinga lokumunca amanzi eliphansi (ngaphansi kuka-0.1%). Ububi ukuthi i-UV ayizinzile, intengo iphezulu futhi inani lincane. I-PPO ayinabo ubuthi, ayinabo ubuthi, isobala, iminyene uma kuqhathaniswa, inamandla amakhulu kakhulu emishini, ukumelana nokunciphisa ingcindezi, ukumelana nokunwabuzelayo, ukumelana nokushisa, ukumelana namanzi, ukumelana nomhwamuko wamanzi.
Ezingeni elibanzi lokushisa, ukuhlukahluka kwemvamisa yokusebenza kahle kagesi, akukho hydrolysis, ukwakha izinga lokushwabana lincane, livutha ngokuzishisa, ukumelana ne-asidi ye-inorganic, i-alkali, ukumelana ne-hydrocarbon enuka kamnandi, i-halogenated hydrocarbon, uwoyela nokunye ukusebenza kabi, ukuvuvukala okulula noma ukuqhekeka kwengcindezi, i-drawback eyinhloko ukungabibikho kokuncibilika kahle, ukucubungula nokwenza ubunzima, iningi lesicelo esisebenzayo se-MPPO (inhlanganisela ye-PPO noma ingxubevange).
Izici zenqubo ye-PPO
I-PPO ine-viscosity ephezulu yokuncibilika, i-liquidity empofu kanye nezimo eziphezulu zokucubungula. Ngaphambi kokucutshungulwa, kuyadingeka ukomisa amahora angama-1-2 ekushiseni kwe-100-120 ℃, izinga lokushisa lokwakha lingu-270-320 ℃, ukulawulwa kwezinga lokushisa kwesikhunta kufanelekile ku-75-95 ℃, nokwenza ukucubungula ngaphansi kwesimo “sophezulu. izinga lokushisa, umfutho ophezulu kanye nesivinini esikhulu”. Enqubweni yokukhiqiza yalo bhiya wepulasitiki, iphethini ye-jet flow (iphethini yenyoka) kulula ukukhiqizwa phambi komlomo, futhi umzila wokugeleza we-nozzle ungcono.
Ubukhulu obuncane busuka ku-0.060 kuye ku-0.125 amayintshi ezingxenyeni ezibunjiwe ezijwayelekile kanye namayintshi angu-0.125 kuya ku-0.250 ezingxenyeni zegwebu lesakhiwo. Ukuvutha kuhluka kusuka ku-UL94 HB kuya ku-VO.
Ibanga lohlelo lokusebenza olujwayelekile
I-PPO ne-MPPO asetshenziswa kakhulu ezintweni zikagesi, ezimotweni, ezintweni zasendlini, emishinini yasehhovisi kanye nemishini yezimboni, njll., kusetshenziswa ukumelana nokushisa kwe-MPPO, ukumelana nomthelela, ukuzinza kwe-dimensional, ukumelana nemihuzuko, ukumelana nokuqubuka;
PC
Ukusebenza kwe-PC
I-PC iwuhlobo lwamapulasitiki obunjiniyela angenasimo, angenaphunga, angenabuthi, abonakala esobala kakhulu angenambala noma aphuzi kancane, anezici ezinhle kakhulu zomzimba nemishini, ikakhulukazi ukumelana nomthelela, amandla aqine kakhulu, amandla okugoba, amandla okucindezela; Ukuqina okuhle, ukushisa okuhle nokumelana nesimo sezulu, imibala elula, ukumuncwa kwamanzi aphansi.
Izinga lokushisa elishisayo le-PC liyi-135-143 ℃, i-creep incane futhi usayizi uzinzile. Inokushisa okuhle nokumelana nokushisa okuphansi, izici ezizinzile zemishini, ukuzinza kwe-dimensional, izakhiwo zikagesi kanye ne-flame retardant ebangeni elibanzi lokushisa. Ingasetshenziswa isikhathi eside ku -60 ~ 120 ℃.
Iqinile ekukhanyeni, kodwa ayimelani nokukhanya kwe-UV, ukumelana nesimo sezulu esihle; Ukumelana nowoyela, ukumelana ne-asidi, ukumelana ne-alkali, i-oxidation acid kanye ne-amine, i-ketone, encibilika kuma-hydrocarbon ane-chlorinated nezincibilikisi ezinephunga elimnandi, inqanda izici zebhaktheriya, izici zokunqanda ilangabi nokumelana nokungcola, isikhathi eside emanzini kulula ukubangela i-hydrolysis nokuqhekeka, ukonakala ngenxa yamandla abuthakathaka wokukhathala, kulula ukukhiqiza ukuqhekeka kwengcindezi, ukumelana ne-solvent empofu, uketshezi olubi, ukumelana nokugqoka okungekuhle. PC umjovo ukubumba, extrusion, ukubumba, igalelo ukubumba, ukuphrinta, ukubopha, enamathela kanye machining, indlela yokucubungula ebaluleke kakhulu ukubumba umjovo.
Izici zenqubo ye-PC
Izinto ze-PC zizwela kakhulu ekushiseni, i-viscosity yayo encibilikayo ngokukhuphuka kwezinga lokushisa futhi iyancipha kakhulu, ukugeleza okusheshayo, ayizwani nengcindezi, ukuze kuthuthukiswe i-liquidity yayo, ukuthatha indlela yokushisa. Izinto ze-PC ngaphambi kokucutshungulwa ukuze zome ngokugcwele (amahora angu-120 ℃, 3 ~ 4), umswakama kufanele ulawulwe ngaphakathi kwe-0.02%, ukulandelela ukucubungula kwamanzi ekushiseni okuphezulu kuzokwenza imikhiqizo ikhiqize umbala oxubile, isiliva namagwebu, i-PC ekamelweni lokushisa inomthamo omkhulu. ukuphoqa i-high elastic deformation. Ukuqina komthelela okuphezulu, ngakho-ke kungaba ukucindezela okubandayo, ukudweba okubandayo, ukucindezela i-cold roll kanye nenye inqubo yokubumba ebandayo. Izinto ze-PC kufanele zibunjwe ngaphansi kwezimo zokushisa okuphezulu kwempahla, izinga lokushisa eliphezulu lesikhunta kanye nokucindezela okukhulu kanye nesivinini esiphansi. Ukuze uthole i-sprue encane, umjovo wejubane eliphansi kufanele usetshenziswe. Kwezinye izinhlobo ze-sprue, umjovo wejubane eliphezulu kufanele usetshenziswe.
Ukulawula izinga lokushisa kwesikhunta ku-80-110 ℃ kungcono, ukwakha izinga lokushisa ku-280-320 ℃ kufanelekile.
Ibanga lohlelo lokusebenza olujwayelekile
Izindawo ezintathu ezisetshenziswa yi-PC imboni yokuhlanganisa ingilazi, imboni yezimoto kanye ne-elekthronikhi, imboni kagesi, ilandelwa izingxenye zemishini yezimboni, i-optical disc, izembatho zomphakathi, ikhompuyutha nezinye izinto zokusebenza zasehhovisi, ukunakekelwa kwezempilo nezempilo, ifilimu, indawo yokuzilibazisa kanye nemishini yokuvikela.
I-PBT
Ukusebenza kwe-PBT
I-PBT ingenye yezinto eziqine kakhulu zobunjiniyela be-thermoplastic, iyi-semi-crystalline material, inokusimama okuhle kakhulu kwamakhemikhali, amandla emishini, izici zokuhlukanisa ugesi kanye nokuzinza kwe-thermal. Lezi zinto zinozinzo oluhle ezinhlobonhlobo zezimo zemvelo, futhi izici zokumunca umswakama we-PBT zibuthakathaka kakhulu.
Indawo encibilikayo (225%℃) kanye nezinga lokushisa lokushintsha kwezinga lokushisa liphansi kunento ye-PET. Izinga lokushisa lokuthambisa iVeka licishe libe ngu-170 ℃. Izinga lokushisa lokushintsha kwengilazi liphakathi kuka-22℃ no-43℃.
Ngenxa yezinga eliphezulu le-crystallization ye-PBT, i-viscosity yayo iphansi kakhulu, futhi isikhathi somjikelezo wokucubungula izingxenye zepulasitiki ngokuvamile siphansi.
Izici zenqubo ye-PBT
Ukomisa: Le mpahla i-hydrolyzes kalula emazingeni okushisa aphezulu, ngakho-ke kubalulekile ukuyomisa ngaphambi kokucubungula. Isimo sokumisa esinconywayo emoyeni singu-120C, amahora angu-6-8, noma angu-150℃, amahora angu-2-4. Umswakama kufanele ube ngaphansi kuka-0.03%. Uma usebenzisa isomisi se-hygroscopic, isimo sokumisa esinconywayo singu-150 ° C amahora angu-2.5. Izinga lokushisa lokucubungula lingu-225 ~ 275 ℃, futhi izinga lokushisa elinconywayo lingu-250 ℃. Ukuze izinga lokushisa lesikhunta elingathuthukisiwe lingama-40 ~ 60 ℃.
Umgodi wokupholisa wesikhunta kufanele uklanywe kahle ukunciphisa ukugoba kwezingxenye zepulasitiki. Ukushisa kufanele kulahleke ngokushesha nangokulinganayo. Kunconywa ukuthi ububanzi bomgodi wokupholisa isikhunta bube ngu-12mm. Ingcindezi yomjovo iphakathi (kufika ku-1500bar esiphezulu), futhi izinga lomjovo kufanele lisheshe ngangokunokwenzeka (ngoba i-PBT iqina ngokushesha).
Umgijimi nesango: Umgijimi oyindilinga uyanconywa ukwandisa ukudluliswa kwengcindezi.
Ibanga lohlelo lokusebenza olujwayelekile
Imishini yasendlini (ama-blades okucubungula ukudla, izakhi zokuhlanza, amafeni kagesi, indawo yokomisa izinwele, izitsha zekhofi, njll.), izingxenye zikagesi (amaswishi, izindlu zikagesi, amabhokisi e-fuse, okhiye bekhibhodi yekhompyutha, njll.), imboni yezimoto (ama-radiator grates, amaphaneli omzimba, izembozo zamasondo, izingxenye zeminyango namafasitela, njll.
Isikhathi sokuthumela: 18-11-22