Sehokelo sa Polyurethane: Tataiso e Felletseng ea Mefuta, Mesebetsi le Litšebeliso
Sesebediswa sa ho lokisa dikhemikhale sa polyurethane ke ntho e potlakisang dikarabelo tsa dikhemikhale tlhahisong ya polyurethane. Bahlahisi ba itshetlehile ka disebediswa tsa ho lokisa dikhemikhale ho fokotsa dinako tsa karabelo, ho ntlafatsa botsitso, le thepa ya taolo jwalo ka ho thatafala le ho tenyetseha. Mmaraka wa disebediswa tsa ho lokisa dikhemikhale tsa polyurethane o ntse o hola, ka dipalopalo tse bontshang keketseho e tsitsitseng ya tlhoko le boleng ba lefatshe ka bophara. MOFAN e etella pele indasteri ka ho fana ka ditharollo tse ntjha le ho fana ka dihlahiswa tsa boleng bo hodimo ho bareki lefatsheng ka bophara.
Lintlha tsa Bohlokoa
- Li-catalyst tsa polyurethaneho potlakisa dikarabelo tsa dikhemikhale, ho ntlafatsa bokgoni ba tlhahiso le boleng ba sehlahiswa.
- Mefuta e fapaneng ea li-catalyst, tse kang li-catalyst tsa amine le tsa tšepe, li susumetsa litšobotsi tsa foam joalo ka ho teteana le matla.
- Ho khetha catalyst e nepahetseng ho bohlokoa bakeng sa ho fihlela litšobotsi tse lakatsehang tsa foam le ho fihlela maemo a tikoloho.
- Li-catalyst tse tsoetseng pele li ka ntlafatsa katleho ea ts'ebetso, e leng se lebisang ho bolokeng litšenyehelo le ts'ebetso e betere tlhahisong.
- Mekhoa ea ho baka lik'hemik'hale tse tsitsitseng e ntse e hlaha, e shebaneng le ho fokotsa tšusumetso ea tikoloho le ho latela melaoana.
Sekhahla sa Polyurethane ke Eng?
Tlhaloso ea Catalyst
Sesebediswa sa ho lokisa di-polyurethane ke ntho ya dikhemikhale e thusang ho potlakisa karabelo pakeng tsa isocyanate le polyol. Karabelo ena e bopa polyurethane, e leng thepa e sebediswang dihlahisweng tse ngata tse kang foam, dikobo le dikhomaretsi. Bongata ba disebediswa tsa ho lokisa di-polyurethane ke di-amine tse tharo. Di-amine tsena di etsa hore karolo ya diol e sebetse haholoanyane, e leng se thusang ho laola hore na polyurethane e bopeha jwang.
- Li-catalyst tsa polyurethane li ka aroloa ka lihlopha tsa motheo le tsa asiti tsa amine.
- Thuto e phahamengli-catalyst tsa amineeketsa nucleophilicity ea diol, e leng se etsang hore karabelo e potlake le ho sebetsa hantle haholoanyane.
Bahlahisi ba sebelisa li-catalyst tsa polyurethane ho tataisa ts'ebetso ea lik'hemik'hale. Sena se netefatsa hore sehlahisoa sa ho qetela se na le thepa e nepahetseng, joalo ka ho tenyetseha kapa ho thatafala.
Li-catalyst tsa polyurethane li bapala karolo ea bohlokoa ho netefatsa hore karabelo e etsahala kapele le ka thelelo. Ntle le tsona, ts'ebetso e ne e tla ba butle ebile e sa lebelloang haholo.
Karolo Tlhahisong ea Polyurethane
Karolo ea li-catalyst tsa polyurethane tlhahisong ke ea bohlokoa. Li fokotsa matla a ho kenya tšebetsong a hlokahalang bakeng sa karabelo lipakeng tsa isocyanate le polyols. Sena se bolela hore karabelo e etsahala kapele le mochesong o tlase. Li-catalyst li sebelisana le li-reactant, li etsa li-complex tse mahareng tse etsang hore ho be bonolo hore litlamo tsa urethane li thehoe.
- Li-catalyst tsa polyurethane li potlakisa karabelo, li boloka nako le matla.
- Li thusa ho theha sehlopha sa mokokotlo oa urethane, se lebisang ho li-polymer tse matla, tse hokahaneng.
- Li-catalyst li susumetsa katoloso ea ketane le ho hokahanya, e leng se amang litšobotsi tsa ho qetela tsa thepa.
Li-catalyst tsa tšepeHape li bapala karolo. Li hokahana le lihlopha tsa isocyanate le hydroxyl, li sebetsa e le li-asidi tsa Lewis. Ho hokahanya hona ho arola tlamo ea isocyanate, ho etsa hore e arabele haholoanyane le ho khothaletsa ho thehoa ha tlamo ea urethane ka potlako.
Sesebediswa sa polyurethane se bohlokwa bakeng sa tlhahiso ya foam. Karabelo ya isocyanate le metsi e hlahisa carbamic acid, e senyehang ho etsa amine le carbon dioxide. Carbon dioxide e thusa ho theha sebopeho sa foam. Dikarabelo tsa bobedi, tse kang dihokelo tsa biuret le allophanate, di eketsa ho hokahanya ho eketsehileng, e leng se etsang hore thepa e be matla.
Karolo ea li-catalyst tsa polyurethane ke ho netefatsa hore ts'ebetso e sebetsa hantle 'me sehlahisoa se fihlela maemo a boleng. Bahlahisi ba itšetleha ka li-catalyst tsena ho hlahisa thepa e sebetsang hantle lits'ebetsong tse fapaneng.
Mefuta ea Li-Catalyst tsa Polyurethane
Li-catalyst tsa polyurethane li bapala karolo ea bohlokoa tlhahisong ea thepa ea polyurethane. Bahlahisi ba khetha ho tsoa mefuteng e 'maloa ea li-catalyst tsa polyurethane ho fihlela sekhahla se itseng sa karabelo, meaho ea foam, le lipheo tsa tikoloho. Mekhahlelo e meholo e kenyelletsa li-catalyst tsa amine, li-catalyst tsa tšepe, le li-catalyst tse tala kapa tse hlahang. Mofuta o mong le o mong o fana ka melemo e ikhethang 'me o loketse lits'ebetso tse fapaneng.
Ka tlase ke tafole e akaretsang mefuta e tloaelehileng haholo ea li-catalyst tsa polyurethane le mehlala ea tsona:
| Mofuta oa Catalyst | Mehlala |
|---|---|
| Li-Catalyst tsa Amine | N,N-dimethylcyclohexylamine, bis(2-dimethylaminoethyl)ether, Triethylamine |
| Li-Catalyst tsa Alicyclic Amine | N-ethylmorpholine, N-methylmorpholine, N,N'-diethylpiperazine |
| Motsoako oa Joala | Triethanolamine, DMEA |
| Li-Amine tse nkhang hamonate | Pyridine, N,N'-lutidine |
| Li-catalyst tsa Organometallic | Dibutyltin dilaurate, loto ea tlhaho |
| Lintho tse ka Sehloohong tsa Tšepe | Tin, potasiamo, loto, mercury, zinki |
Li-Catalyst tsa Amine
Li-catalyst tsa amine ke sehlopha se sebelisoang haholo tlhahisong ea foam ea polyurethane. Li-catalyst tsena li thusa ho laola karabelo pakeng tsa li-isocyanate le li-polyol. Li-catalyst tsa amine li ka aroloa ka lihlopha tse 'maloa, tse kang li-amine tse phahameng, li-amine tsa alicyclic, le li-aromatic amine. Sehlopha se seng le se seng se susumetsa karabelo ka tsela e fapaneng.
- Li-amine tse phahameng, joalo ka N, N-dimethylcyclohexylamine le triethylamine, li tloaelehile tlhahisong ea foam e tenyetsehang le e thata.
- Li-amine tsa Alicyclic, tse kang N-ethylmorpholine, li fana ka botsitso bo ntlafetseng 'me hangata li sebelisoa lifomong tse khethehileng.
- Li-amine tse nkhang hamonate, ho kenyeletsoa le pyridine, li fana ka ts'ebetso e ikhethang bakeng sa lits'ebetso tse itseng.
Li-catalyst tsa amine li ananeloa ka lebaka la bokhoni ba tsona ba ho potlakisa karabelo ea polyurethane le ho laola sebopeho sa sele ea foam. Li thusa bahlahisi ho fihlela tekano e lakatsehang pakeng tsa lebelo la karabelo le boleng ba foam. Li-catalyst tsa amine tse tsoetseng pele tsa MOFAN li etselitsoe ho fihlela litlhoko tse ntseng li fetoha tsa indasteri, li fana ka bohloeki bo phahameng le ts'ebetso e tsitsitseng.
Li-Catalyst tsa Tšepe
Li-catalyst tsa tšepe, tse tsejoang hape e le li-catalyst tsa organometallic, ke sehlopha se seng sa bohlokoa tlhahisong ea polyurethane. Li-catalyst tsena hangata li na le litšepe tse kang tin, potassium, kapa zinc. Dibutyltin dilaurate ke mohlala o tsebahalang haholo. Li-catalyst tsa tšepe li sebetsa e le li-asidi tsa Lewis, ho bolelang hore li thusa ho kenya tšebetsong sehlopha sa isocyanate le ho khothaletsa ho thehoa ha tlamo ea urethane.
- Li-catalyst tse thehiloeng ho tin li sebelisoa haholo ka lebaka la ts'ebetso ea tsona e matla ea ho potlakisa le bokhoni ba ho laola linako tsa ho fola.
- Li-catalyst tsa potasiamo le zinki li fana ka mekhoa e meng bakeng sa lits'ebetso moo chefo e tlase kapa karabelo e itseng e hlokahalang.
TMR-30 Catalyst e kholo ea MOFAN e hlahella sehlopheng sena. E na le trimerization ea ketso e liehang, e lumellang taolo e betere holim'a ho phahama le ho fola ha foam. TMR-30 Catalyst e boetse e na le bohloeki bo phahameng le bokhoni bo ntlafalitsoeng, e leng se etsang hore e be e loketseng tlhahiso ea foam ea polyurethane le polyisocyanurate.
Li-Catalyst tse Tala le tse Hlahang
Indasteri ea polyurethane e ntse e leba litharollong tse tala le tse tšoarellang haholoanyane. Li-catalyst tse tala le tse ntseng li hlaha li etselitsoe ho fokotsa tšusumetso ea tikoloho le ho latela melao e thata. Mekhoa e 'maloa e bopa nts'etsopele ea li-catalyst tsena:
- Fetohela ho thepa e tala e thehiloeng linthong tsa tlhaho ho fokotsa ho itšetleha ka mafura a khale
- Tsepamisa maikutlo ho ntlafatseng ho sebelisoa hape le ho bola ha lihlahisoa tsa polyurethane
- Ho hatisoa ha bokgoni ba eneji mekgweng ya tlhahiso
- Ho amoheloa ha litsamaiso tse thehiloeng metsing ho fokotsa mesi e tsoang metsoakong e feto-fetohang ea lintho tse phelang (VOC) le ho ntlafatsa polokeho
- Likhatello tsa taolo mabapi le likarolo tse chefo le mesi e tsoang nakong ea tlhahiso
Metswako e tsoetseng pele ea li-catalyst ea MOFAN e sebetsana le litlhoko tsena tsa indasteri ka ho fokotsa mesi e tsoang ho VOC le ho latela melao e thata ea tikoloho. Li-catalyst tsena li ntlafatsa botsitso ba lihlahisoa tsa polyurethane, li etsa hore li lokele mehaho e bolokang matla le likarolo tse bobebe tsa likoloi. Li-catalyst tsa polyurethane tsa sejoale-joale li boetse li fana ka taolo e nepahetseng ea sekhahla sa karabelo, e thusang ho ntlafatsa thepa ea foam le ho atolosa ts'ebeliso ea tsona liindastering tse fapaneng.
Mesebetsi ea Catalyst
Ho Potlakisa Karabelo
Li-catalyst li bapala karolo ea bohlokoa ho etseng foam ea polyurethane. Li thusa ho potlakisa liketso tsa gelation le ho foka. Liketsahalo tsena li tlameha ho etsahala ka nako e nepahetseng hore foam e thehoe ka nepo. Li-catalyst tse fapaneng li na le litlamorao tse fapaneng liketsong tsena. Tse ling li sebetsa hantle bakeng sa gelation, ha tse ling li le betere bakeng sa ho foka. Sistimi e leka-lekaneng ea bohlokoa bakeng sa taolo e ntle. Karolelano ea gelation le catalyst e fokang e fetola matla le botenya ba foam. Mohlala:
- Sesebediswa se eketsehileng sa ho kopanya dikhemikhale se bolela ho hokela ka potlako le foam e matla.
- Sesebediswa se fokang haholo se bolela tlhahiso e potlakileng ya carbon dioxide le ho fokotseha ha letswai la foam.
Tšusumetso ho Thepa ea Foam
Mofuta oa catalyst o sebelisoang o ka fetola tsela eo foam e shebahalang le ho ikutloa ka eona. Li-catalyst tse nang le asiti ea tlhaho, tsa motheo tsa tlhaho, le tse thehiloeng ho tin ka 'ngoe li ama liketso tsa gelling le ho foka ka litsela tse fapaneng. Haeba karabelo ea ho foka e potlakile haholo, foam e ka 'na ea putlama. Haeba karabelo ea gelling e potlakile haholo, foam e kanna ea se ke ea phahama ka ho lekaneng. Li-catalyst tsa amine li bohlokoa bakeng sa karabelo ea ho foka. Li thusa ho laola boima ba foam le ho mamella. Tekanyo pakeng tsa liketso tsena e bohlokoa bakeng sa ts'ebetso ea ho qetela ea foam.
Bokgoni ba Ts'ebetso
Li-catalyst li boetse li ntlafatsa katleho ea ts'ebetso. Ho sebelisa li-catalyst tse tsoetseng pele ho ka eketsa katleho ka ho fihla ho 30% mochesong o motle. Foam e entsoeng ka li-catalyst tsena e ka bontša keketseho ea 15% ea matla a ho thapolla. Mekhoa e metle ea ho kopanya e etsa hore li-catalyst tse sebetsang hantle li sebetse hantle le ho feta. Sena se lebisa ho omeng ka potlako le tlhahiso e phahameng tlhahisong. Ho ntlafala ha ts'ebetso ho bolela ts'ebetso e betere le litšenyehelo tse tlase bakeng sa bahlahisi.
Likopo tsa Catalyst
Lifomo tse Tenyetsehang
Li-catalyst tsa polyurethane li bapala karolo ea bohlokoa tlhahisong ea li-foam tse tenyetsehang. Bahlahisi ba sebelisa li-catalyst tsena ho etsa foam ea polyurethane e bonolo, e thata hanyane, le e tiileng. Li-foam tse tenyetsehang li tloaelehile mesamong ea thepa ea ka tlung, kahare ho likoloi, le ho kenya foam ka spray. Melao-motheo ea ts'ebeliso ea li-catalyst tsa polyurethane e thusa ho laola bongata ba foam le ho mamella. Li-catalyst li boetse li nolofalletsa tlhahiso ea li-dashboard le litulo bakeng sa likoloi. MOFAN e fana ka litharollo tse etselitsoeng liindasteri tsena, ho netefatsa boleng bo tsitsitseng le phihlello ea lefats'e.
- E sebelisoa ho mesamo ea thepa ea ka tlung
- E bohlokoa bakeng sa likamore tsa kahare tsa likoloi
- Ho nolofatsa ho thibela ho kenngoa ha foam ka spray
- Tšehetsa tlhahiso ea dashboard
Lifoam tse tiileng
Foam e thata ea polyurethane e sebelisoa haholo kahong le ho kenya mochesong. Melao-motheo ea ts'ebeliso ea li-catalyst tsa polyurethane e khetholla matla a foam, lebelo la ho fola le polokeho. Mefuta e fapaneng ea li-catalyst e ama ts'ebetso le tšusumetso ea tikoloho. Tafole e ka tlase e bontša kamoo likhetho tsa li-catalyst li susumetsang litšobotsi tsa foam e thata:
| Mofuta oa Khathatso | Litlamorao tsa Bohlokoa Tshebetso le Polokeho |
|---|---|
| Li-Catalyst tsa Amine tsa Thuto e Phahameng | Potlakisa ho thehwa ha maqhama a urethane; ntlafatsa ho tsamaellana; fokotsa mosi o tswang ka hara disele; ntlafatsa foam. |
| Li-catalyst tsa Organometallic | Khothaletsa ho thehoa ha urethane; mekhoa e meng ea chefo e tlaase e fumaneha. |
| Kinetics ea Karabelo | Liparamente tsa nako li ama katleho ea ts'ebetso. |
| Tšusumetso ea Tikoloho | Li-catalyst tsa Bismuth li fana ka chefo e tlase le kamohelo e laoloang. |
MOFAN e fana ka dikhatalyst tsa boleng bo hodimo bakeng sa ditshebediso tse thata tsa foam, e tshehetsa diporojeke tsa kaho tse bolokang eneji lefatsheng ka bophara.
Liaparo le Likhomaretsi
Liaparo le likhomaretsi tsa polyurethane li itšetlehile ka li-catalyst ho laola lebelo la karabelo le ho ntlafatsa ho fola. Melao-motheo ea ts'ebeliso ea li-catalyst tsa polyurethane e netefatsa tlhahiso e tsitsitseng le ts'ebetso e ntle ka ho fetisisa. Li-catalyst li leka-lekanya liketso tsa gelling le blowing, e leng tsa bohlokoa bakeng sa liaparo le likhomaretsi tsa indasteri. Ho khetha catalyst e nepahetseng ho bohlokoa bakeng sa ho latela litekanyetso tsa taolo le ho fihlela thepa e lakatsehang joalo ka ho thatafala le ho hanyetsa mafome.
- Li-catalyst li laola lebelo la karabelo le pheko
- Ho leka-lekanya ho etsa gelling le ho letsa dikarabelo
- Tšusumetso ea ho thatafala le ho hanyetsa ho bola
- Bohlokoa bakeng sa ho ntlafatsa ho khomarela lits'ebetsong tsa indasteri
Ho sebetsana le di-catalyst ho hloka mehato ya tshireletso. Kamehla sheba maqephe a data a polokeho mme o sebedise disebediswa tsa tshireletso. Ho hlokahala moya o lekaneng dibakeng tsa mosebetsi.
Li-elastomer le Tšebeliso e Ikhethang
Li-elastomer tsa polyurethane li sebelisoa lits'ebetsong tse ikhethang tse kang mabili, litiiso le likarolo tsa indasteri. Li-catalyst li thusa ho fihlela thepa e itseng ea mechini le ho tšoarella. MOFAN e fana ka mefuta ea li-catalyst tsa polyurethane tse ikhethileng bakeng sa ts'ebeliso ena, ho fihlela litlhoko tse ikhethang tsa bareki. Phepelo ea lefats'e le netefatso ea boleng li tšehetsa tšebelisano-'moho ea nako e telele le liindasteri Europe, Amerika le Australia.
Keletso: Hlalosa litlhoko tsa ts'ebetso, leka mekhoa, 'me u ntlafatse ho kenya li-catalyst ho netefatsa hore lipente le lits'ebetso tsa ka tlung li fihlela litekanyetso tsa ho latela melao le ho tšoarella.
Ho Khetha Li-Catalyst tsa Polyurethane
Lintlha tsa Bohlokoa
Ho khetha catalyst e nepahetseng ea polyurethane ho bohlokoa bakeng sa ho fihlela liphetho tse ntle tlhahisong. Bahlahisi ba tlameha ho nahana ka lintlha tse 'maloa ha ba khetha catalyst bakeng sa lits'ebetso tse itseng:
- Boemo ba ho feto-fetoha le ho ntšoa ha mouoane: Lekola khatello ea mouoane, moeli oa monko, le boitšoaro ba ho falla ho matrix ea PU.
- Tekanyo ea karabelo: Ho foamisa le ho etsa jeli ho lokela ho tsitsa bakeng sa sebopeho se tsitsitseng sa foame.
- Ho lumellana: Netefatsa hore catalyst e sebetsa hantle le polyol, isocyanate, le lintho tse ling tse eketsang ho qoba ho se tsitse.
- Litlhoko tse ikhethileng bakeng sa ts'ebeliso: Tšebeliso e fapaneng e hloka litekanyetso tse ikhethang tsa monko le liprofaele tsa karabelo.
MOFAN e fana ka likeletso tsa litsebi le litharollo tse ikhethileng ho thusa bareki ho khetha mefuta e metle ka ho fetisisa ea li-catalyst tsa polyurethane bakeng sa litlhoko tsa bona. Ho buisana le litsebi ho netefatsa ntlafatso ea ts'ebetso bakeng sa ts'ebeliso ea qetellong le ho latela maemo a indasteri.
Tshebetso le Polokeho
Bohloeki ba catalyst bo bapala karolo ea bohlokoa tlhahisong ea polyurethane. Li-catalyst tse hloekileng haholo li lebisa ho thepa e tsitsitseng ea foam le ho fokotsa likarabelo tse sa batleheng. Li-catalyst tse liehang ho sebetsa li lumella taolo e betere ea nako ea karabelo, e leng se ntlafatsang boleng ba bokaholimo le phallo ea foam. Likarolo tsena li tšehetsa melemo ea ho sebelisa li-catalyst tsa polyurethane tlhahisong ea sejoale-joale.
Bahlahisi ba tlameha ho latela maemo a polokeho le mangolo a netefatso. Tafole e ka tlase e bonts'a mangolo a netefatso a tloaelehileng bakeng sa khetho ea catalyst ea PU:
| Mofuta oa Setifikeiti | Tlhaloso |
|---|---|
| ISO 9001 | Ho latela melao ea boleng ba sistimi bakeng sa tlhahiso |
| COA | Setifikeiti sa Tlhahlobo se fumaneha ha ho kopuoa |
| SDS/MSDS | Leqephe la Lintlha tsa Polokeho le fumaneha ha le kopuoa |
Polokeho ke ntho ea bohlokoa. Kamehla hlahloba maqephe a lintlha tsa polokeho 'me u latele mekhoa e khothaletsoang ea ho sebetsana le eona.
Mehopolo ea Tikoloho
Melao ea tikoloho e ama tšebeliso le ho lahla li-catalyst tsa polyurethane. Litšila tsa polyurethane li hanela ho bola ha lintho tse phelang, e leng se ka bakang tšilafalo ea mobu le metsi. Mekhoa ea tlhahiso le eona e ja matla a mangata 'me e kenya letsoho ho ntšeng ha likhase tse futhumatsang lefatše.
- Ho lahla ka nepo di-catalyst tsa polyurethane amine ho thibela tšilafalo.
- Litšila tse kotsi li lokela ho sebetsoa ho latela melao ea lehae.
- Hloekisa le ho lahla lijana tse se nang letho ka boikarabelo.
Tsoelo-pele ea morao tjena theknolojing ea li-catalyst e shebane le mekhoa ea bio-based, nanotechnology, le ntlafatso ea botsitso. Li-catalyst tsa MOFAN li thusa bahlahisi ho fihlela maemo a taolo a fetohang le ho fokotsa tšusumetso ea tikoloho.
Ho khetha sesebelisoa se nepahetseng sa ho baka mathata ho tšehetsa ts'ebetso ea sehlahisoa le boikarabello ba tikoloho.
Khetho ea sehokelo sa polyurethane e ama boleng ba sehlahisoa, katleho le tšusumetso ea tikoloho. Ho khetha mofuta o nepahetseng oa sehokelo sa PU ho ntlafatsa thepa ea foam le ho fokotsa litšila. Lihokelo tsa boleng bo holimo, tse kang tse tsoang MOFAN, li fana ka liphetho tse tsitsitseng le poloko ea litšenyehelo tsa nako e telele. Bahlahisi ba rua molemo tšehetsong ea litsebi le litharollo tse ikhethileng bakeng sa litlhoko tse ikhethileng.
Bakeng sa thuto e tsoetseng pele, hlahloba mehloli mabapi le mefuta ea li-catalyst tsa polyurethane le mekhoa ea botsitso. Tataiso e tšepahalang e netefatsa ts'ebetso e ntle le ho latela melao ts'ebelisong e 'ngoe le e 'ngoe.
LBH
QSesebediswa sa ho kopanya polyurethane ke eng?
Sesebediswa sa ho lokisa dikotwana tsa polyurethane se potlakisa karabelo pakeng tsa isocyanate le polyol. Tshebetso ena e etsa foam ya polyurethane, dikobo le dikhomaretsi. Bahlahisi ba sebedisa disebediswa tsa ho lokisa dikotwana tsa PU ho ntlafatsa bokgoni le ho laola boleng ba sehlahiswa.
QMefuta ea li-catalyst tsa PU e ama litšobotsi tsa foam joang?
Mefuta e fapaneng ea li-catalyst tsa polyurethane e susumetsa ho teteana ha foam, matla le lebelo la ho fola. Li-catalyst tsa amine li thusa ho etsa li-foam tse bonolo. Li-catalyst tsa tšepe li hlahisa li-foam tse matla le tse tiileng. Ho khetha catalyst ea PU e nepahetseng ho netefatsa ts'ebetso e lakatsehang.
QNa li-catalyst tsa polyurethane li bolokehile bakeng sa ts'ebeliso ea ka tlung?
Bongata ba di-catalyst tsa polyurethane tsa sejoale-joale, ho kenyeletsoa le dikgetho tsa MOFAN tse nang le mosi o fokolang, di fihlela maemo a polokeho bakeng sa tshebediso ya ka tlung. Kamehla hlahloba maqephe a data a polokeho mme o latele mekgwa e kgothalletswang ya ho sebetsana le ona.
QNa nka sebelisa sesebelisoa se tšoanang sa PU bakeng sa lihlahisoa tsohle tsa polyurethane?
Tjhe. Mofuta o mong le o mong wa di-catalyst tsa polyurethane o sebetsa hantle bakeng sa ditshebediso tse itseng. Di-foam tse tenyetsehang, di-foam tse thata, di-coatings le di-elastomer di hloka di-catalyst tse fapaneng. Buisana le ditsebi ho kgetha di-catalyst tsa PU tse nepahetseng bakeng sa ditlhoko tsa hao.
QNka khetha catalyst e ntle ka ho fetisisa ea polyurethane joang?
Nahana ka mofuta oa foam, lebelo la karabelo, mosi o tsoang, le ho lumellana le metsoako e meng. Li-catalyst tse hloekileng haholo, joalo ka tsa MOFAN, li fana ka liphetho tse tsitsitseng. Keletso ea litsebi e thusa ho ntlafatsa ts'ebetso le ho fihlela litlhoko tsa taolo.
Nako ea poso: Phupu-07-2026