Pyromellitic dianhydride(PMDA) musanganiswa unoshanda wakawanda unobata basa rakakosha mukuvandudza kupisa-resistant polyimide resins, mafirimu, uye machira.Hunhu hwayo hwakasiyana hunoita kuti ive isingakosheke mbishi zvinhu mumhando dzakasiyana-siyana dzekushanda kwepamusoro-soro, kubva kune anochinjika akadhindwa edunhu mabhodhi kusvika kune enameled waya insulation.Ngatitarisei zvakanyanya kugona kwePMDA uye maitiro ayo paindasitiri.
PMDA ndiyo yakakosha yepakati mukugadzirwa kwemafirimu epolyimide, ayo anozivikanwa nekudzikama kwekupisa uye kusimba kwemagetsi.Aya mafirimu anoshandiswa zvakanyanya mumabhodhi edunhu akadhindwa uye anogona kutumira masaini emagetsi zvisina musono achishingirira tembiricha yakakwira.Mukuwedzera, PMDA-based polyimide films zvikamu zve self-adhesive matepi, nzira inokosha yekusangana kwezvikamu zvemagetsi.
Pamusoro pezvo, PMDA inobatsira mukugadzirwa kwepolyimide-based composite, kuvandudza yavo yekupisa uye yemagetsi zvivakwa.Aya macomposites ari mukuda kukuru kwekugona kwawo kushingirira mamiriro ekushanda, achiaita akanakira aerospace, mota uye zvemagetsi application.PMDA-based polyimide composites ine yakanakisa kupisa kupisa uye kugadzikana kwedimensional, zvichiita kuti ive sarudzo yekutanga munzvimbo umo zvinhu zvechinyakare zvisina kukwana.
Mumunda we enameled wire insulation, PMDA inoita basa rakakosha mukuona hupenyu hurefu uye kuvimbika kwemagetsi masisitimu.Nekubatanidza PMDA mumidziyo yekudzivirira, vagadziri vanogona kugadzira waya dzinokwanisa kumira kutonhora kwakanyanya uye nharaunda dzakaomarara.Izvi zvinonyanya kukosha kune maindasitiri akadai sekugadzira magetsi, uko kudiwa kwepamusoro-kuita insulation mhinduro kwakakosha.
Pamusoro pezvo, PMDA inofambisa kugadzirwa kwemhando yepamusoro-yekupfeka ine yakanakisa kupisa kupisa uye kusagadzikana kwemakemikari.Aya machira ane akasiyana-siyana ekushandisa, kubva pakuchengetedza midziyo yemaindasitiri munzvimbo dzinopisa zvakanyanya kusvika pakupa kupera kwakasimba kwemagetsi evatengi.PMDA-based coatings inokwanisa kuchengetedza kutendeseka kwavo pasi pekumanikidzwa, ichiita kuti ive midziyo yakakosha kune akasiyana maindasitiri.
Sezvo maindasitiri achiramba achisundidzira miganhu yekushanda uye kuvimbika, kudiwa kwePMDA kunotarisirwa kukwira.Inoita basa risingaenzaniswi mukugadzira zvinhu zvepamberi zvinoshanda mumamiriro akanyanya.Kuita kwakasiyana-siyana kwePMDA mukusimudzira zvinopisa uye zvemuchina zvezvigadzirwa zvepolyimide zvinoratidzira kukosha kwayo mukufambisa hunyanzvi mumaindasitiri mazhinji.
Muchidimbu, pyromellitic dianhydride (PMDA) ibwe repakona rekugadzirwa kwezvinhu zvepamusoro-soro zvine hunyanzvi hwekupisa kupisa uye kutendeseka kwemuchina.Mhedzisiro yaro iri kunzwikwa mumaindasitiri kubva kune zvemagetsi kusvika kune aerospace, uko kudiwa kwemhinduro dzakavimbika uye dzakasimba kusingagone kutaurirana.Sezvo kutsvagisa nekusimudzira kuri kuenderera mberi, PMDA inotarisirwa kuenderera mberi ichikurudzira hunyanzvi uye kugadzirisa ramangwana rekushanda kwepamusoro-soro.
Nguva yekutumira: Jun-25-2024