Desmodur RE:Ithute ka tšebeliso le melemo ea isocyanate
Desmodur REke sehlahisoa sa sehlopha sa isocyanate, se khethiloeng ka ho khetheha CAS 2422-91-5. Li-Isocyanate ke metsoako ea bohlokoa tlhahisong ea lihlahisoa tse fapaneng tsa polyurethane, 'me Desmodur RE le eona e joalo. Sengoliloeng sena se ikemiselitse ho fana ka kutloisiso e tebileng ea Desmodur RE, ts'ebeliso ea eona le melemo eo e fanang ka eona lits'ebetsong tse fapaneng.
Desmodur REke aliphatic polyisocyanate e thehiloeng ho hexamethylene diisocyanate (HDI). Haholo-holo e sebelisoa e le karolo e thata ka ho fetisisa ea litlolo tse tsitsitseng tsa polyurethane le mekhoa ea ho khomarela. Khemistri e ikhethang ea Desmodur RE e etsa hore e be e loketseng bakeng sa lits'ebetso tse hlokang likhoele tse sebetsang hantle tse nang le boemo ba leholimo bo botle le ho hanyetsa lik'hemik'hale. Ho feta moo, ho tsamaellana ha eona le mefuta e fapaneng ea polyols le solvents ho eketsa ho feto-fetoha ha eona mekhoeng e fapaneng.
E 'ngoe ea melemo e ka sehloohong eaDesmodur REke bokhoni ba eona ba ho fana ka botsitso bo ikhethang le khanyetso ea UV ho litlolo. Sena se etsa hore e be e loketseng ka ho khetheha bakeng sa likopo tsa ka ntle, moo ho pepesehela maemo a thata a tikoloho ho ka senyang ts'ebetso ea liaparo tsa setso. Ebang e sebelisoa ho koahela likoloi, ho lokisa liindasteri kapa meaho ea meralo, Desmodur RE e bapala karolo ea bohlokoa ho ntlafatseng bophelo bo bolelele le ponahalo ea libaka tse koahetsoeng.
Ntle le karolo ea eona ea ho roala, Desmodur RE e boetse e sebelisoa ho hlahisa li-adhesives tsa boleng bo phahameng. Thepa ea eona ea ho phekola ka potlako le ho khomarela ka mokhoa o babatsehang ho mefuta e fapaneng ea li-substrates e etsa hore e be motsoako oa bohlokoa ho li-adhesives tsa meralo, li-adhesives tsa laminating le li-sealant formulations. Likhomaretsi tsa Desmodur RE li khona ho mamella khatello ea maikutlo le maemo a tikoloho, e leng se etsang hore e be khetho ea pele ea ho batla likopo tsa bonding liindastering tse fapaneng.
Holim'a moo,Desmodur REe fana ka li-formulators bokhoni ba ho fetola thepa ea polyurethane le likhomaretsi ho latela litlhoko tse itseng. Ka ho fetola likarolo tsa tlhahiso le ho kenyelletsa Desmodur RE, ho ka finyelloa mefuta e mengata ea litšoaneleho tsa ts'ebetso, ho kenyelletsa ho thatafala, ho feto-fetoha ha maemo le ho hanyetsa lik'hemik'hale. Boemo bona ba ho ikamahanya le maemo bo thusa bahlahisi ho fihlela litlhoko tse fapaneng tsa basebelisi ba ho qetela makaleng ho tloha ho tsa likoloi le tsa sefofane ho isa ho tsa kaho le meaho.
Ke habohlokoa ho hlokomela hore ha a ntse aDesmodur REe fana ka melemo e mengata mabapi le ts'ebetso le ho feto-fetoha ha maemo, ka lebaka la sebopeho se sebetsang sa isocyanate, ho ts'oaroa ka nepo le mehato ea ts'ireletso e tlameha ho hlokomeloa. Ho pepesehela li-isocyanate ho ka baka likotsi tsa bophelo bo botle, ka hona ho bohlokoa ho latela litataiso tse khothalelitsoeng tsa ts'ireletso le ho sebelisa lisebelisoa tse nepahetseng tsa ts'ireletso ha u sebetsana le Desmodur RE le lihlahisoa tse ling tse thehiloeng ho isocyanate.
Ka kakaretso,Desmodur REke motsoako oa bohlokoa ha ho etsoa liphahlo le likhomaretsi tsa polyurethane tse sebetsang hantle haholo. Ho tšoarella ha eona ho ikhethang, khanyetso ea UV le ho feto-fetoha ha maemo ho etsa hore e be motsoako oa bohlokoa haholo tlhahisong ea lirafshoa le likhomaretsi bakeng sa lits'ebetso tse fapaneng. Ka ho utloisisa litšebeliso le melemo eaDesmodur RE, bahlahisi le basebelisi ba ho qetela ba ka sebelisa bokhoni ba bona ba ho etsa lihlahisoa tse tšoarellang, tse tšoarellang nako e telele le tsa boleng bo phahameng ba polyurethane. Leha ho le joalo, ha u sebetsa ka lihlahisoa tsa isocyanate, ho bohlokoa ho etelletsa pele mehato ea polokeho ho netefatsa boiketlo ba basebetsi le tikoloho.
Nako ea poso: May-24-2024