4,4'-Oxydiphthalic anhydride (ODPA) ndi mankhwala osinthika apakati omwe ali ndi ntchito zosiyanasiyana popanga zinthu zosiyanasiyana. ODPA cas 1823-59-2 ndi ufa woyera wa crystalline umene umapangidwa ndi zomwe zimachitika pakati pa phthalic anhydride ndi phenols.
4,4'-Oxydiphthalic anhydride cas 1823-59-2 ndi yofunika kwambiri pakupanga ma polima apamwamba kwambiri monga polyimides, polyesters, ndi epoxy resins. Ma polima awa ali ndi zida zabwino kwambiri zamakina, zotenthetsera, komanso zamankhwala, zomwe zimawapangitsa kukhala othandiza pazinthu zosiyanasiyana monga zamlengalenga, zamagetsi, ndi mafakitale amagalimoto.
Ma polyimide ndi ma polima osamva kutentha kwambiri omwe amagwiritsidwa ntchito pamakina omwe amafunikira makina abwino kwambiri. Zitsanzo zina za ntchitozi ndi monga ma bearing, magiya, ndi zisindikizo. 4,4'-Oxydiphthalic anhydride cas 1823-59-2 ndi yofunika kwambiri yapakatikati yomwe imagwiritsidwa ntchito popanga ma polyimides monga PMDA-ODA, BPDA-ODA, ndi BPDA-PDA.
Epoxy resins amagwiritsidwa ntchito ngati zomatira, zokutira, ndi zophatikiza m'mafakitale osiyanasiyana.ODPA ca 1823-59-2amagwiritsidwa ntchito popanga ma epoxy resins monga bisphenol A-type epoxy resins ndi novolac-type epoxy resins. Ma resinswa amakhala omatira bwino, olimba kwambiri, komanso amakana mankhwala omwe amawapangitsa kukhala oyenera kugwiritsidwa ntchito pomanga, m'madzi, komanso m'mafakitale amagetsi.
Polyesters ndi mtundu wina wa polima womwe umatha kupangidwa pogwiritsa ntchito ODPA ngati wapakatikati. Ma polimawa ali ndi mphamvu zambiri, kulimba, komanso kusinthasintha, kuwapangitsa kukhala othandiza pazinthu zosiyanasiyana monga ulusi wansalu, zida zoyikapo, ndi zokutira.
ODPA imagwiritsidwanso ntchito popanga mapulasitiki monga ortho-phthalate esters. Ma plasticizer awa amawonjezeredwa ku ma polima kuti awonjezere kusinthasintha kwawo komanso kulimba. Mapulasitiki opangidwa ndi ODPA ali ndi ntchito yabwino kwambiri yotsika kutentha ndipo amagwiritsidwa ntchito m'mapulogalamu omwe kusinthasintha ndi chinthu chofunikira kwambiri.
Kuphatikiza pa kugwiritsidwa ntchito kwake popanga ma polima ndi mapulasitiki,4,4'-Oxydiphthalic anhydride cas 1823-59-2amagwiritsidwa ntchito ngati choletsa moto popanga zinthu zamagetsi ndi zamagetsi. Itha kugwiritsidwanso ntchito ngati cholumikizira cholumikizira popanga zomatira, zokutira, ndi zinthu zina.
Pomaliza,4,4'-Oxydiphthalic anhydride cas 1823-59-2ndi zosunthika mankhwala wapakatikati kuti ntchito zambiri zofunika m'mafakitale osiyanasiyana. Kugwiritsiridwa ntchito kwake popanga ma polima amphamvu kwambiri, opangira mapulasitiki, zoletsa moto, ndi zinthu zina zathandizira kupita patsogolo kwa madera ambiri a umisiri. Chifukwa cha mawonekedwe ake apadera komanso ntchito zosiyanasiyana, ODPA ndi mankhwala ofunikira apakatikati omwe akuyenera kupitiliza kugwira ntchito yofunika kwambiri pakukula kwa mafakitale osiyanasiyana.
Nthawi yotumiza: Mar-06-2024