Foam ea polyurethane ke thepa ea bohlokoa ka har'a liphanele tsa sandwich, e fanang ka ho thibela mocheso hantle, botsitso ba sebopeho le katleho ea mocheso. Liphanele tsa sandwich li sebelisoa hangata kahong ea mehaho, libaka tsa polokelo e batang le meaho ea indasteri, 'me li na le mekhahlelo e 'meli e tšesaane ea thepa e tšoarellang le foam ea polyurethane e bobebe. Foam e entsoe ka foam e thata ea polyurethane 'me e kenya letsoho haholo ts'ebetsong eohle ea phanele mabapi le ho thibela mocheso, tšireletso ea mollo le botšepehi ba sebopeho. Boleng ba foam ena bo itšetlehile haholo ka sesebelisoa sa polyurethane se sebelisoang tlhahisong ea sona.
Li-catalyst tsa polyurethane li bapala karolo ea bohlokoa karabelong ea lik'hemik'hale e fetolang li-polyol le li-isocyanate hore e be foam e tiileng. Li-catalyst tsena li potlakisa ts'ebetso ea ho fola le ho fola, li netefatsa sebopeho se ts'oanang sa sele, ho khomarela hantle le thepa e ntle ea 'mele. E 'ngoe ea li-catalyst tse joalo keMXC-15, tharollo ea potassium octoate (CAS 3164-85-0), e leng sesebelisoa se phahameng sa phetoho, se theko e tlaase sa isocyanurate. E loketse haholo bakeng sa liforomo tsa polyol tse nang le viscosity e phahameng 'me e ka khothaletsa karabelo ea isocyanate ka katleho.
Kopo ho Sandwich Panels
Karolo e ka hare ea foam ea polyurethane ka har'a liphanele tsa sandwich e tlameha ho fihlela litekanyetso tse itseng ho netefatsa hore phanele e sebetsa hantle. Mohlala, foam e tlameha ho ba bobebe empa e be matla ho lekana ho mamella matla a khatello le ho fana ka ho thibela mocheso. Ho feta moo, lits'ebetsong tse itseng, joalo ka polokelo e batang kapa sehatsetsing sa indasteri, ho hanyetsa mollo ho bohlokoa.MXC-15e arabela haholo 'me e thusa ho theha foam ea polyisocyanurate (PIR), e tsejoang ka ho hanyetsa mollo ha eona ho matlafalitsoeng, e leng se etsang hore e be e loketseng lits'ebetsong tse joalo.
Lifomo tsa PIR li na le karolo e phahameng ea litlamo tsa isocyanurate ho feta lifomo tsa polyurethane tse tloaelehileng, e leng se li fang khanyetso e ntle ea mollo. MXC-15 e khothalletsa ho thehoa ha litlamo tsena, e netefatsa hore fomo ea ho qetela e na le thepa e hlokahalang bakeng sa liphanele tsa sandwich. Sena se etsa hore litsamaiso tsa fomo tsa PIR tse tšehetsoang ke MXC-15 e be khetho e tsebahalang bakeng sa liphanele tse hlokang ho latela maemo a thata a mollo.
Tšusumetso Boleng ba Sehlahisoa
Khetho ea catalyst e na le tšusumetso e kholo boleng ba foam core ea sandwich panel. Li-catalyst tse kang MXC-15 li netefatsa karabelo e boreleli le e laoloang ea foam, e leng se fellang ka sebopeho sa foam se tsitsitseng haholoanyane. Sena se bohlokoa haholo tlhahisong ea liphanele tsa sandwich, kaha ho tšoana ha bongata ba foam le boholo ba sele li ama thepa ea ho thibela mocheso le matla a mechini a phanele ea sandwich. Foam ea polyurethane e entsoeng hantle e kopantsoeng le li-catalyst tse nepahetseng e ka fokotsa phetiso ea mocheso haholo, ea ntlafatsa bokhoni ba ho thibela mocheso le ho tšoarella ha nako e telele ha liphanele tsa sandwich.
Ho phaella moo, ho sebedisa di-catalyst tse sebetsang haholo tse kang MXC-15 ho ka hlahisa difoam tse thata tse nang le diphoso tse fokolang. Boemo ba ho phahama le ho hlahiswa ha di-gelation bo laolwang bo fokotsa monyetla wa ho ba le di-voids kapa dintlha tse fokolang ka hara foam, ho netefatsa botshepehi ba sebopeho sa phanele ya sandwich. Ho feta moo, MXC-15 e loketse di-formulations tsa polyol tse nang le viscosity e phahameng, e netefatsang ho tsamaellana le mefuta e fapaneng ya diformula, e leng se etsang hore e be kgetho e feto-fetohang bakeng sa bahlahisi ba batlang ho ntlafatsa ditshebetso tsa bona tsa tlhahiso ya phanele.
Ka bokhutšoanyane, li-catalyst tsa polyurethane tse kang MXC-15 li bapala karolo ea bohlokoa tlhahisong ea liphanele tsa sandwich, haholo-holo tlhahisong ea li-cores tsa foam tsa PIR. Tšusumetso ea tsona boleng ba foam, thepa ea mocheso le ho hanyetsa mollo e ke ke ea nyenyefatsoa. Ka ho khetha catalyst e nepahetseng, bahlahisi ba ka hlahisa liphanele tsa sandwich tse fihlelang maemo a holimo a ts'ebetso le polokeho, e leng se etsang hore e be khetho e pharaletseng bakeng sa mefuta e fapaneng ea lits'ebetso tsa kaho le tsa indasteri.
Nako ea poso: Pherekhong-06-2025