Marulelo a Spray Polyurethane Foam (SPF) a fumane botumo bo ntseng bo eketseha lilemong tsa morao tjena, haholo-holo har'a beng ba meaho ea khoebo ba batlang litharollo tsa marulelo tse bolokang matla, tse tšoarellang nako e telele le tse theko e tlaase. Empa hantle-ntle marulelo a SPF ke eng, a sebetsa joang, 'me na a bolokehile bakeng sa batho le tikoloho? A re hlahlobeng likarabo ho tsoa ponong ea setsebi sa moetsi oa li-catalyst tsa polyurethane.
Marulelo a SPF ke Eng?
Marulelo a foam ea polyurethane e fafalitsoeng ke sistimi ea marulelo e se nang sekoli, e khomaretsoeng ka botlalo e hlahisoang ka ho kopanya likarolo tse peli tsa metsi—isocyanate (A)lepolyol (B)—tlasa maemo a laoloang amocheso o phahameng le khatelloLikarolo tsena li tsamaisoa ka liphaephe tse futhumetseng tse nang le khatello e phahameng 'me li kopanngoa ka sethunya sa spray hoo e ka bang ka115–130°FHa di kopana, dikhemikhale di arabela ka potlako mme di atoloha ho bafoam e thata, e koetsoeng ea liselee khomarelang substrate mme e fola hore e be lera la marulelo le tšoarellang, le bobebe, le sa keneleng metsi.
Mofuta ona oa marulelo o sebelisoa haholo mehahong ea khoebo, ea indasteri le ea mekhatlo. Tlhaho ea oona e se nang mokhelo e thibela ho lutla ha metsi, ha thepa ea oona ea ho thibela ho ruruha e ntlafatsa ts'ebeliso e ntle ea matla ka ho fokotsa litšenyehelo tsa HVAC.
Foam ea Sele e Bulehileng khahlanong le Foam ea Sele e Koetsoeng Marulelong
- SPF ea sele e koetsoengke khetho e tloaelehileng haholo bakeng salits'ebetso tsa maruleloka lebaka la matla a eona a ho hatella a phahameng, ho hanyetsa metsi, le thepa ea ho thibela mocheso.
- SPF ea sele e bulehileng, leha e le bobebe ebile e tenyetseha haholoanyane, hangata e sebelisoa bakeng saho thibela kahareleho thibela molumo,eseng bakeng sa marulelo.
Marulelo a SPF a Sebelisoa Joang?
Mekhoa ea marulelo a SPF kee sebelisitsoe sebakeng seoke litsebi tse koetlisitsoeng tse sebelisang lisebelisoa tse khethehileng tsa ho fafatsa. Likarolo tsa lik'hemik'hale tsa A le B li bolokoa ka har'a lijana tse arohaneng 'me li pompeloa ka liphaephe tse nang le khatello e phahameng ho ea sethunyeng sa ho fafatsa.khatello, mochesoledikarolelano tsa ho kopanyali bohlokoa bakeng sa ts'ebeliso e atlehileng le ts'ebetso ea foam.
Motheong oa karabelo ena keli-catalyst tsa polyurethane,tse laolang lebelo la karabelo, tse leka-lekaneng lits'ebetso tsa foam le gelling, le tse susumetsang litšobotsi tsa ho qetela tsa foam. Li-catalyst tsa rona, tse kangMXC-5leMXC-8,li etselitsoe litsamaiso tsa SPF ho netefatsa hore li sebetsa hantle 'meleng le boleng ba foam.
Na Foam ea Polyurethane e Sireletsehile?
Ena ke potso e tloaelehileng har'a beng ba meaho, borakonteraka le babuelli ba botsitso.
Karabo e khutšoanyane ke:SPF ka boeona ha e na chefo,empapolokeho ea eona e itšetlehile ka mokhoa oa ho e etsa—haholo-holo dikhemikhale tse tlatsetsang tlhahisong.
Nakong le nakoana ka mor'a kopo,metsoako e feto-fetohang ea lintho tse phelang (VOCs)e ka lokolloa ho tsoa linthong tse ling tse tlatsetsang tse kanglintho tse ntšang moealelintho tse thibelang malakabeTse ling tsa li-VOC tsena li ka 'na tsa ba lemonyetla o phahameng oa ho futhumala ha lefatše (GWP)kapa ho baka ho teneha ha motho a pepesehetse ka ho toba. Ke ka lebaka lenamehato e nepahetseng ea polokeho,ho kenyeletsoa le PPE le moea o kenang, lia hlokahala nakong ea ho kenngoa.
Ho Mingxu New Materials, re tsepamisa maikutlo holi-catalyst tsa polyurethane tse nang le VOC e tlase,joalo kaMXC-5leMXC-8,thuso efefokotsa ho ruruha ho sa laoleheng, ho baka allergy,letšusumetso ea tikolohoLi-catalyst tsena li boloka ts'ebetso e phahameng ha li ntse li tšehetsa lipheo tsa botsitso mefuteng ea foam ea sejoale-joale.
Bohlokoa ba ho Khetha Li-Catalyst tse Nepahetseng
Li-catalyst li bapala karolo ea bohlokoa ho netefatseng horebokgoni, ho tšoarella, le ts'ebetso ea tikolohoea litsamaiso tsa marulelo a SPF. Sistimi ea catalyst e leka-lekaneng hantle e netefatsa:
- Ho laola karabelo bakeng sa katoloso le ho khomarela foam hantle
- Nako e ntlafalitsoeng ea phekolo bakeng sa katleho ea sebaka sa mosebetsi
- Mesi e fokolang e hlahisoang ke moea e tla fihlela melao e thata ea bophelo bo botle le tikoloho
Mohala oa rona oa lihlahisoa oali-catalyst tsa polyurethane tse thehiloeng ho amine le tšepee entsoe ka ho khetheha bakeng sa litsamaiso tsa SPF 'me e lumellana le tsona ka bobelisetsolemekhoa e latelang ea moloko o latelang ea GWP e tlase,ho kenyeletsoa le litsamaiso tse thehiloeng ho HFO.
Qetello
Marulelo a foam a polyurethane a fafatsang a fana kaTharollo e sebetsang ka ho fetisisa, e nang le mekhoa e mengatabakeng sa marulelo a khoebo a sejoale-joale. Leha ho na le ho tšoenyeha ka polokeho ho utloahalang, mekhoa ea kajeno—ka khetho e nepahetseng eali-catalyst tse nang le mosi o fokolangleli-additives tse tsitsitseng—etsa marulelo a SPF joalo kae bolokang matla, 'me e ela hloko tikolohokhetho.
Nako ea poso: Phuptjane-17-2025