Lilemong tsa morao tjena, indasteri ea foam ea polyurethane e entse phetoho e kholo ho ea litharollong tse tsitsitseng le tse mosa tikolohong. Har'a tsona, li-agent tse butsoelang tsa hydrofluorolefin (HFO) li hlahella e le boqapi bo boholo, haholo-holo li-spray foam tse koetsoeng. Li-agent tse butsoelang tsa HFO li amoheloa haholo e le mokhoa o mong o mosa tikolohong ho feta li-agent tse tloaelehileng tsa foam tsa hydrofluorocarbon (HFC) lits'ebetsong tsa foam ea polyurethane spray.
Ho Utloisisa Li-HFO Foam Agents
HFO, e khutsufalitsoeng bakeng sa hydrofluorolefin, ke motsoako o entsoeng ka liathomo tsa haedrojene, fluorine le khabone tse tšoanang le HFCS empa li na le sebopeho se ikhethang se fokotsang tšusumetso ea tikoloho. Ho fapana le HFC, HFO ha e na bokhoni ba ho felisoa ha ozone (ODP) le bokhoni bo tlase ba ho futhumala ha lefatše (GWP). HFO e na le tšusumetso e nyane haholo ho futhumaleng ha lefatše ka lebaka la bophelo ba eona bo bokhutšoanyane ba sepakapaka, kahoo e etsa hore e be khetho ea foam ea spray e mosa haholo tikolohong. Ka ho kenyelletsa metsoako ea foam ea HFO tlhahisong ea foam ea spray, bahlahisi le basebelisi ba ho qetela ba ka tšehetsa tikoloho e phetseng hantle le ho latela melao ea lefats'e e reretsoeng ho fokotsa mesi e kotsi.
Melemo ea Bohlokoa ea HFO ho Spray Foams
Ntle le GWP ea bona e tlase le ODP ea lefela, li-HFO li fana ka mefuta e meng ea thepa e molemo:
- Ho Tsamaisa Motlakase ka Tlase:Thepa ena e etsa hore lifomo tsa spray tse thehiloeng ho HFO li lokele libaka tsa ho thibela mocheso tse haufi le lisebelisoa tsa motlakase le terata.
- Ho se Chese:Lifomo tsa HFO ha li chese ka tlhaho, e leng se ntlafatsang polokeho ea meaho e sebelisang sethibela-mollo sena.
- Ha e na Chefo le ho Fokotseha ho Tlase:Lisebelisoa tsa ho fofonela tsa HFO ha li na metsoako ea lintho tse phelang e feto-fetohang (VOCs), e thusang ho ntlafatsa boleng ba moea ka tlung le ho fokotsa likotsi tsa bophelo bo botle tse amanang le ho ntšoa ha khase ka lik'hemik'hale.
- Ho Latela Tikoloho:Li-HFO li latela melaoana e thata ea tikoloho e ntseng e eketseha, e leng se etsang hore e be khetho e khethiloeng mekhoeng ea kaho e tsitsitseng.
Li-Catalyst tsa Polyurethaneho Li-spray Foam tse Thehiloeng ho HFO
Li-catalyst tsa polyurethaneLi bapala karolo ea bohlokoa ho ntlafatseng ts'ebetso le katleho ea lifoam tsa spray tse thehiloeng ho HFO. Li thusa ho laola sekhahla sa karabelo lipakeng tsa isocyanate le polyols, li netefatsa hore foam e fola ka nepo 'me e fihlella bongata bo lakatsehang le thepa ea ho thibela mocheso. Li-catalyst tse sebelisoang le HFO hangata li khethoa ka lebaka la ho lumellana ha tsona le li-agent tse fokang tse nang le mosi o fokolang, e leng se fellang ka ho hokahana ho sebetsang hantle, ho fola ka potlako le botsitso ba sebopeho ba nako e telele.
Qetello
Jwalo ka mofani wa di-catalyst tsa polyurethane, re lemoha bohlokwa ba ho tshehetsa ntshetsopele e sireletsang tikoloho. Ho sebedisa di-agent tsa foam tsa HFO ho di-spray foam ha ho tsamaisane feela le dipheo tsa botsitso ba lefatshe empa hape ho ntlafatsa dibopeho tsa tshebetso tseo di-foam tsa setso tsa HFC di ke keng tsa di fana. Ka ho fetohela ho di-spray foam tse thehilweng ho HFO le ditsamaiso tse ntlafaditsweng tsa di-catalyst, diindasteri di ka fokotsa haholo kgatello ya tsona tikolohong ha di ntse di fihlela maemo a hodimo a ho kwahela le ho tshwarella.
Nako ea poso: Pulungoana-11-2024