Eminyakeni yamuva, ukusetshenziswa kwe-plastitics ekhethekile yezobunjiniyela kunwetshwe kancane kancane kusuka emasimini ezempi nasezi-aerospace kuya ezinkundleni ezengeziwe zezempi, njengezimoto, ezenzakalelayo zemishini, kanye nezimpahla zabathengi abaphezulu. Phakathi kwazo, i-polyphonene sulfide (PPS) ne-polyeethetone (Peek) yizinhlobo ezimbili zobunjiniyela obukhethekile bokuthuthuka okusheshayo kanye nobubanzi besicelo esibanzi.
I-Peek iphakeme kune-PPS ngokuya ngamandla, ubulukhuni, kanye nokushisa okuphezulu kokusebenza. Ngokuya ngokumelana okushisa okuphezulu, ukumelana kwezinga lokushisa kwe-peek kungama-50 ° C ukuphakama kunele pps. Ngakolunye uhlangothi, inzuzo esobala esobala yokusebenzisa kanye nokusebenza okungcono kokusebenza kwe-PPS kwenza kusetshenziswe kabanzi.
I-PPS inezinzuzo zokusebenza ezilandelayo:
(1) I-Intincic Flame Retardant
Different from PC and PA, PPS pure resin and its glass fiber/mineral powder filled composites can easily achieve V-0 @ 0.8mm or even thinner thickness V-0 flame retardant without adding any flame retardant level. Although PC and PA have cheaper prices and better mechanical strength (especially impact strength) than PPS, the cost of PC and PA composites with halogen-free flame retardant formulations (V-0@0.8mm level) is higher than that of PPS. It will rise sharply, and in many cases even higher than PPS materials with the same mechanical strength.
(2) I-Ultra-liquility ephezulu
In the Isicelo Field of Notebook Cover, le nzuzo isobala ukwedlula lokho kwe-PC. Inani eliphakeme lezengezo ngeke lithinte kabi kakhulu ukulimala kwezinto ezibonakalayo futhi libangele ubunzima, kepha futhi libangela nezinkinga ezinjengemicu emibi entantayo, i-warpage embi. Okwe-semi-crystalline pps, u-fluodity wayo ophakeme kakhulu uvumela ukugcwaliswa kwe-fiber yengilazi ukuze kudlule ama-50%. Ngasikhathi sinye, enqubweni yokushisa ephezulu kuncibilika ukuxuba nokukhishwa, i-viscosision engezansi ye-PPS ngokuqhathaniswa ne-PC ingena ngaphansi kwe-athikili yokugcina ebabazekayo, okuyinto okunye kukhulisa modulus.
(3) Ukutholwa kwamanzi okuphansi kwe-Ultra
Le nzuzo ikakhulukazi ye-PA. Ngokuya nge-fluity, i-PA egcwele kakhulu futhi ama-PP aqhathaniswa; kanye nezakhiwo zemishini, izinhlanganisela ze-PA ezinenani elifanayo lokugcwalisa zibucayi kakhulu. Umphumela uba yilapho isilinganiso esifanele semikhiqizo ye-PPS ngenxa yokuqunjelwa kokutholwa kwamanzi kuphansi kakhulu kunaleyo yemikhiqizo ye-PA ngaphansi kwezimo ezifanayo.
(4) ukuthungwa kwensimbi okuhlukile kanye nobulukhuni obuphakeme bendawo
Ngokuhlanganiswa kwezikhunta ezikhethekile kanye nokushisa okubunjiwe okunengqondo, izingxenye zokukholisa umjovo we-PPS zizophinda zikhiphe umsindo ofana nokushaya ngensimbi ngaphansi kwe-milror, futhi ingaphezulu lizobe libushelelezi njengesibuko, nge-luster yensimbi.
I-Peek inezindawo ezilandelwayo ezilandelayo:
(1) Ukumelana nokushisa okuphezulu kakhulu.
Ingasetshenziselwa isikhathi eside ku-250 ° C, izinga lokushisa lingafinyelela ama-300 ° C ngaso leso sikhathi, futhi alibolile ngesikhathi esifushane ngo-400 ° C.
(2) Izakhiwo ezinhle kakhulu zemishini kanye nokuqina kobukhulu.
I-Peek ingagcina amandla aphezulu ngokushisa okuphezulu. Amandla okugoba ngo-200 ° C asengafinyelela kuma-24 MPA, kanye namandla okugoba namandla acindezelayo ngo-250 ° C angafinyelela ku-12-13 MPA. Ilungele ikakhulukazi ukukhiqiza imikhiqizo eqhubekayo yokushisa okuphezulu. izingxenye zokusebenza. I-Peek inokuqina okuphezulu, ukuqina okuhle kobukhulu kanye nokwehluleka okuphansi kokunwetshwa komugqa, okusondele kakhulu kwi-aluminium yensimbi. Ngaphezu kwalokho, i-Peek ibuye ibe nokumelana okuhle kwe-creep, ingamelana nengcindezi enkulu ngesikhathi senkonzo, futhi ngeke ibangele ukunwetshwa okukhulu ngenxa yokwandiswa kwesikhathi.
(3) Ukumelana okuhle kwamakhemikhali.
I-Peek imelana namakhemikhali amaningi kahle, ngisho nasemazingeni okushisa aphezulu, ngokumelana nokugqwala okufana ne-nickel yensimbi. Ngaphansi kwezimo ezijwayelekile, okuwukuphela kwento engancibilikisa i-peek igxile ku-sulfuric acid.
(4) Ukumelana okuhle kwe-hydrolysis.
Ukumelana nomonakalo wamakhemikhali ngamanzi noma umfutho wamanzi omkhulu. Ngaphansi kwesimo sokushisa okuphezulu kanye nengcindezi ephezulu, izingxenye ze-Peek zingasebenza ngokuqhubekayo emvelweni wamanzi futhi zigcina izakhiwo ezinhle zemishini. Njengokucwiliswa okuqhubekayo emanzini kwa-100 ° C.Ezinsuku ezingama-200, amandla ahlala engashintshiwe.
(5) Ukusebenza okuhle kwe-Flame retardant.
Ingafinyelela isilinganiso se-Ul 94 V-0, iyazifikisa, futhi ikhipha intuthu encane kanye namagesi anobuthi ngaphansi kwezimo zamalangabi.
(6) ukusebenza kahle kukagesi.
I-Peek igcina izakhiwo zikagesi ngaphezulu kwemvamisa ebanzi kanye nobubanzi bokushisa.
(7) Ukumelana nemisebe enamandla.
I-Peek inesakhiwo esizinzile kakhulu samakhemikhali, nezingxenye ze-Peek zingasebenza kahle ngaphansi kwemithamo ephezulu yemisebe e-ionizitive.
(8) Ubunzima obuhle.
Ukuqiniseka Kokukhathala ekuguquleni ukucindezela kungcono kakhulu kuwo wonke amapulasitiki futhi kuqhathaniswa nama-alloys.
(9) ukungqubuzana okuhle kakhulu nokugqokwa.
Ukumelana nokugqoka okuphezulu kanye ne-coefficient ephansi yokuxabana kugcinwa ku-250 ° C.
(10) ukusebenza okuhle kokusebenza.
Ukukhishwa okulula nokubumba kokuhlanganiswa, nokusebenza kahle okuphezulu.
Isikhathi Sokuthumela: 01-09-22