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Lintho tsa lik'hemik'hale tsa lihlahisoa

2022-03-09

Polycarbonate (PC) ke sehlopha sa polyester sa carbonic acid, carbonic acid ka boeona ha e tsitsa, empa lihlahisoa tsa eona (tse kang phosgene, urea, carbonate, carbonate) li na le botsitso bo itseng.

Ho ea ka sebopeho se fapaneng sa joala, polycarbonate e ka aroloa ka mekhahlelo e 'meli ea aliphatic le monko o monate.

Aliphatic polycarbonate. Tse kang polyethylene-carbonate, polytrimethylene carbonate le li-copolymers tsa eona, sebaka se tlaase sa ho qhibiliha le mocheso oa phetoho ea khalase, matla a fokolang, a ke keng a sebelisoa e le thepa ea mohaho; empa ts'ebeliso ea lisebelisoa tsa eona tsa biocompatibility le tse ka senyehang, li ka sebelisoa ho bajari ba ho lokolloa butle ba lithethefatsi, li-sutures tsa ho buoa, lisebelisoa tsa ts'ehetso ea masapo le lits'ebetso tse ling.

Polycarbonate e hanyetsana le li-acid tse fokolang, metheo e fokolang, le oli e sa nke lehlakore.

Polycarbonate ha e hanyetsane le khanya ea ultraviolet le alkalis e matla.

PC ke linear carbonate polyester e nang le lihlopha tsa carbonic acid ka har'a molek'hule le lihlopha tse ling tse ka bang monko o monate, aliphatic kapa ka bobeli. Bisphenol A mofuta oa PC ke sehlahisoa sa bohlokoa ka ho fetisisa sa indasteri.

PC ke polymer ea amorphous ea khalase e batlang e se na 'mala e nang le thepa e ntle ea optical. Resin e phahameng ea limolek'hule ea PC e na le boima bo phahameng, cantilever beam notched matla a matla a 600 ~ 900J / m, mocheso o sa tlatsoang oa mocheso o ka bang 130 ° C, fiber ea khalase e matlafalitsoeng e ka etsa hore boleng bona bo eketsehe ka 10 ° C. PC bending modulus e ka fihla ho feta 2400MPa, resin e ka sebetsoa ka lihlahisoa tse kholo tse thata. Sekhahla sa moroalo se tlase haholo ka tlase ho 100 ° C. PC ha e hanyetsane hantle le hydrolysis mme e ke ke ea sebelisoa bakeng sa lihlahisoa tse lulang li le tlas'a khatello e phahameng ea mouoane.

Mefokolo ea mantlha ea ts'ebetso ea PC ke khaello ea eona ea botsitso ba hydrolytic, kutloelo-bohloko ea ho phunya, ho hanyetsa lik'hemik'hale tsa tlhaho, ho se tsitse hantle, le ho ba mosehla ho tloha ho pepesehela khanya ea UV nako e telele. Joalo ka li-resin tse ling, PC e kotsing ea ho khoholeha ka lebaka la li-solvents tse ling.

Lisebelisoa tsa PC li thibela mollo. E hanana le oxidation.

Post ea peleLintho tsa 'mele tsa sehlahisoa

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