I-Pyromellitic dianhydride: Ukukhulula amandla okumelana nobushushu

Yazisa:

Kwintsimi yezinto eziphambili,pyromellitic dianhydride(PMDA) iye yahluma njengesithako esiphambili ekwenzeni i-polyimide resins ekwazi ukumelana nobushushu, iifilimu kunye neengubo.Ngokuzinza kwayo okugqwesileyo kwe-thermal kunye nokuguquguquka, i-PMDA ibe lolona khetho lokuqala kwizicelo ezininzi ezisebenza kakhulu.Kule bhlog, siphonononga amandla amakhulu e-PMDAs kunye nendima yazo ekuguquleni amashishini ahlukeneyo.

Ukuxhathisa Ubushushu:

I-PMDA inokumelana nobushushu obugqwesileyo kwaye iyimathiriyeli ekrwada efanelekileyo yokuveliswa kweefilimu ze-polyimide.Ezi bhanyabhanya zisetyenziswa ngokubanzi kwiibhodi zesekethe eziguquguqukayo eziprintiweyo, iteyipu yokudibanisa ngokuzenzekelayo kunye ne-magnetic wire insulation.Ngokubandakanya i-PMDA, ezi zixhobo zinokumelana namaqondo okushisa aphezulu ngaphandle kokuncama ukunyaniseka kwesakhiwo.Kwizicelo apho ukufakwa kwe-thermal kubaluleke kakhulu, iifilimu ze-PMDA-based polyimide zibonelela ngokusebenza okungenakulinganiswa.

I-Powerpack Composites:

I-PMDA ikwadlala indima ebalulekileyo ekwenzeni imidibaniso esekwe kwipolyimide.Ezi zixhobo zidibanisa ukuxhathisa ukushisa okuphezulu kwe-polyimide kunye namandla kunye neempawu ezikhaphukhaphu zezinye izinto.Ngenxa yoko, amashishini afana ne-aerospace, i-automotive kunye ne-electronics iyazuza kuphuhliso lwamacandelo asebenza kakhulu.Ingaba ukuvelisa iinxalenye zeenqwelomoya okanye ukuphucula ukuqina kwezixhobo zombane, ii-composites ezisekelwe kwi-PMDA zibonelela ngesisombululo esiyimpumelelo.

Isiqina:

Ukongeza kwindima yayo kwi-polyimide resins, i-PMDA ingasetyenziselwa njenge-arhente yokunyanga i-epoxy resins kwi-powders yokubumba.Isicelo sivumela ukudalwa kwezinto ezikhethekileyo ezifana nezangqa zokutywina, i-thrust washers, i-spacers kunye ne-insulators.Ngokongeza i-PMDA njenge-ejenti yokunyanga, i-epoxy resin inokuphucula iimpawu ze-thermal kunye ne-mechanical, ngaloo ndlela iphucula ukusebenza kwayo yonke kunye nokwandisa uluhlu lwesicelo sayo.

Imephu yeNdlela yoTshintsho:

Iipropathi ezigqwesileyo ze-PMDA ziyenza ibe sisithako esiyimfuneko ekusukeleni ukusungula izinto ezintsha.Imizi-mveliso ixhomekeke kubuchule bayo obukhethekileyo bokumelana namaqondo obushushu aphezulu ukuqinisekisa ukhuseleko nokuthembeka kweemveliso zabo.Ngokutyhala imida yokumelana ne-thermal, ii-PMDA zivula amathuba amatsha okuqhubela phambili kwi-electronics, i-aerospace, kunye neminye imimandla apho ukuchaneka nokuthembeka kubaluleke kakhulu.

ukuququmbela:

I-Pyromellitic dianhydride (PMDA) yinguqu yokwenyani yomdlalo kwibala lezinto eziphambili.Ukumelana nokushisa kwayo okugqwesileyo kunye nokuguquguquka kwayo kwenza kube yinto eyimfuneko ekuveliseni i-polyimide resins, iifilimu kunye ne-composites.Njengoko amashishini azabalazela ukwenza izinto ezintsha kunye nokuthembeka, i-PMDA ibonelela ngesiseko esiyimfuneko ukutyhala imida yokumelana ne-thermal.Nge-PMDA kwi-helm, sinokulindela ukubona inkqubela phambili kwizicelo eziphezulu zokusebenza, ukuqinisekisa umgangatho ophezulu kunye nokhuseleko kwiminyaka ezayo.