Li-catalyst tsa polyurethane li bapala karolo ea bohlokoa tlhahisong ea thepa ea polyurethane, e sebelisoang haholo liindastering tse fapaneng ka lebaka la ho tenyetseha ha tsona le ts'ebetso ea tsona. Li-catalyst tsena li potlakisa karabelo ea lik'hemik'hale lipakeng tsa li-polyol le li-isocyanate ho etsa li-foam tsa polyurethane, li-coatings, li-elastomer, li-glue le li-sealant. Khetho ea li-catalyst ha e ame feela sekhahla sa karabelo empa hape le thepa ea ho qetela ea sehlahisoa sa polyurethane, e leng se etsang hore e be karolo ea bohlokoa ho etseng li-foam tsa boleng bo holimo.
Mefuta ea Li-Catalyst tsa Polyurethane
Li-catalyst tsa polyurethane li ka aroloa ka lihlopha tse peli tse kholo:li-catalyst tse thehiloeng ho amineleli-catalyst tse thehiloeng tšepeng.
- Li-Catalyst tsa Amine
Li-catalyst tsa amine li sebelisoa haholo tlhahisong ea foam ea polyurethane. Li khothalletsa liketso tsa ho foka le tsa gelling. Tse ling tsa li-catalyst tse tloaelehileng tsa amine li kenyelletsa:- Li-amine tse phahameng: Tsena di kgothaletsa karabelo ya ho foka, e leng se etsang sebopeho sa sele sa foam. Mehlala e kenyelletsa MXC-37 (CAS 1704-62-7), e sebediswang ho foam e bonolo e thehilweng ho ester le foam tse nyenyane tsa sele.
- Li-catalyst tse butsoang: Li-catalyst tsena li thusa ho laola karabelo ea foam, haholo-holo ha metsi a sebelisoa e le sesebelisoa sa ho foka hammoho, joalo ka ha ho bonoa ho MXC-R40.
- Li-catalyst tsa ho lokisa: Li-catalyst tse khethehileng tsa amine tse kang MXC-TMA li khothalletsa ho hlophisoa ha polyisocyanurates, e leng sa bohlokoa tlhahisong ea foam e thata e nang le khanyetso e matla ea mollo.
- Li-Catalyst tsa Tšepe
Hangata di-catalyst tse thehilweng tshepeng di sebediswa ho ntlafatsa karabelo ya gelling, e leng se lebisang ho thepa e betere ya mechini ho foam. Di-catalyst tse tlwaelehileng tsa tshepe di kenyeletsa:- Li-catalyst tse thehiloeng ho tin: MXC-T12, e tsejoang hape e le dibutyltin dilaurate (CAS 1185-81-5), e sebelisoa haholo ka lebaka la bokhoni ba eona ba ho ntlafatsa nako e se nang lithapo le thepa ea mechini ho foam e tenyetsehang le e tiileng.
- Mekhoa e meng e seng ea tšepe: Ha ho arajoa matšoenyeho a tikoloho, li-catalyst tsa tšepe tse seng tsa tin tse kang MXC-B20, tse nkang sebaka sa mercury le li-catalyst tse thehiloeng ho loto, li se li tumme. Catalyst ena e loketse haholo ts'ebeliso ea foam e tenyetsehang le e nyenyane, e fanang ka viscosity e liehang le ho fola hantle ntle le mesi e kotsi.
Mesebetsi ea Bohlokoa ea Li-Catalyst tsa Polyurethane
Li-catalyst tsa polyurethane li tsamaisa haholo-holo liketso tse peli nakong ea ho thehoa ha foam:karabelo e fokanglekarabelo ea gelling.
- Karabelo e Fokang: Ena ke ho thehoa ha dipululana tsa khase ka hara motswako o arabelang, ho theha sebopeho sa sele se bulehileng kapa se kwetsweng sa foam. Dikhatalyst tse potlakisang karabelo ya ho foka di netefatsa katoloso e nepahetseng le ho thehwa ha sele.
- Karabelo ea Gelling: Ena ke karabelo pakeng tsa polyols le isocyanate, tse etsang mokokotlo oa polymer oa polyurethane. Li-catalyst tsa tšepe tse kang MXC-41 le MXC-15 li sebetsa hantle haholo ho ntšetseng pele karabelo ena, e leng se lebisang meahong e thata le e tšoarellang ea foam.
Litšebeliso tsa Li-Catalyst tsa Polyurethane
Sebopeho le mofuta o itseng wa sehokelo sa polyurethane se sebediswang di ka fapana ho latela thepa e lakatsehang ya sehlahiswa sa ho qetela sa foam. Tse ding tsa ditshebediso tse tlwaelehileng ke tsena:
- Lifomo tse Tenyetsehang
Lifomo tse tenyetsehang tsa polyurethane li sebelisoa ka har'a thepa ea ka tlung, materaseng le ka hare ho likoloi. Li-catalyst tse kang MXC-37 le MXC-R40 li etselitsoe ho leka-lekanya liketso tsa ho foka le ho lahla, ho netefatsa hore fomo e na le mamello e nepahetseng, bonolo le ho tšoarella. - Lifoam tse tiileng
Lifomo tse thata tsa polyurethane li sebelisoa e le ho thibela mocheso kahong le lisebelisoa. Li-catalyst tse kang MXC-15 le MXC-41 li loketse ho etsa lifomo tse nang le boleng bo phahameng ba sebopeho le thepa e ntle ea ho thibela mocheso, tse sebelisoang hangata ho li-spray foam le liphanele. - Lifomo tse Ikhethang
Li-catalyst tse itseng tsa polyurethane, joalo ka MXC-TMA, li sebelisoa tlhahisong ea li-foam tsa polyisocyanurate (PIR). Li-foam tsa PIR li na le khanyetso e phahameng ea mollo le botsitso ba mocheso, e leng se etsang hore li lokele lits'ebetso tsa ho thibela mocheso tse sebetsang hantle. - Likarolo tsa Likoloi
Indasteri ea likoloi e sebelisa lifomo tsa polyurethane ka har'a li-dashboard, mesamo ea litulo le liphanele tsa kahare. Li-catalyst tse kang MXC-T9, tse nang le tšusumetso e matla le litšobotsi tse tlase tsa monko o mobe, li loketse lits'ebetso tsena.
Mehopolo ea Tikoloho le Taolo
Ha matšoenyeho a tikoloho a ntse a hola, ho na le tlhoko e ntseng e eketseha eamosi o fokolang, monko o tlasedi-catalyst tsa polyurethane. Di-catalyst tse se nang mosi tse kang MXC-37 le MXC-B20 di ntse di tuma haholo ka lebaka la bokgoni ba tsona ba ho fokotsa mosi o tswang ka hara motswako wa organic compound (VOC) ha di ntse di boloka tshebetso e phahameng. Ho feta moo, di-catalyst tse seng tsa tin di ntse di fumana matla ha mekgatlo ya taolo e beha melao e thata mabapi le tshebediso ya ditshepe tse boima tlhahisong ya foam.
Qetello
Li-catalyst tsa polyurethane ke bahale ba sa rorisoang ka morao ho ts'ebetso le boleng ba foam ea polyurethane le lihlahisoa tse ling. Bokhoni ba tsona ba ho laola le ho ntlafatsa ts'ebetso ea karabelo bo bohlokoa ho netefatsa hore bahlahisi ba fihlela litlhoko tsa indasteri bakeng sa lihlahisoa tse sebetsang hantle, tse tšoarellang, le tse sireletsang tikoloho. Ka tsoelo-pele e tsoelang pele theknolojing ea catalyst, indasteri ea polyurethane e ikemiselitse ho tsoela pele ka boqapi le botsitso lilemong tse tlang.
Nako ea poso: Pherekhong-15-2025