Indastering ea lefats'e ea polyurethane,li-catalyst li bapala karolo ea bohlokoaho potlakisa dikarabelo, ho ntlafatsa thepa ya foam, le ho ntlafatsa bokgoni ba tlhahiso. Ha polyurethane e ntse e tswela pele ho atoloha ho pholletsa le diindasteri tse kang ho kenya mocheso, dikoloi, thepa ya ka tlung, dieta le kaho, tlhoko ya tshebetso e phahameng.li-catalyst tsa polyurethaneho eketsehile haholo. Ho utloisisamekhoa ea nts'etsopele le tsoelo-pele ea theknolojiLekala lena le bohlokoa bakeng sa bahlahisi ba batlang ho lula ba le teng 'marakeng o hlōlisanang.
1. Li-catalyst tsa Polyurethane:Lejoe la Motheo la Tlhahiso ea Foam
Polyurethane e thehoa ka karabelo ea li-polyol le li-isocyanate, e leng ts'ebetso e itšetlehileng haholo ka li-catalyst. Li-catalyst tsena—haholo-holo tse thehiloeng ho amine le tse thehiloeng ho tšepe—li laolaho fofonela (ho foka) le ho phekola ka gelling (ho folisa), ho netefatsa boleng bo tsitsitseng ba sehlahisoa, matla a mechini, le sebopeho se lakatsehang sa foam.
Ho na le mefuta e 'maloa ea li-catalyst tse sebelisoang lits'ebetsong tsa polyurethane:
- Li-amine tse phahameng:Khothalletsa liketso tsa ho letsa le/kapa tsa ho hlaba ha gelling.
- Li-catalyst tse thehiloeng tšepeng(jwalo ka metsoako ya tin, potassium, kapa bismuth): Potlakisa tshebetso ya ho fodisa le ho ntlafatsa dibopeho tsa ho qetela.
- Li-catalyst tse nang le mosi o fokolang le tse arabelang: E ntshetswa pele ho latela melao ya tikoloho.
2. Mekhoa ea Nts'etsopele ea Indasteri
a. Ho Latela Tikoloho le Mekhoa e Tlase ea ho Hlahisa Mosi
Ka ho tiisa melaoana ea tikoloho e kangREACH Europe, TSCA ho la US, le maano a lefats'e a ho fokotsa VOC, bahlahisi ba li-catalyst tsa polyurethane ba fetohela hometsoako ea li-catalyst tse nang le mosi o fokolang, tse se nang chefo, le tse arabelang.Li-catalyst tsa amine tse tloaelehileng tse thehiloeng ho tin kapa tse nang le monko o phahameng li nkeloa sebaka ke tse latelang:
- Li-catalyst tsa amine tse arabelangtse tlangwang ka dikhemikhale ka hara matrix ya polyurethane.
- Mekhoa e meng ea VOC e tlasetse fokotsang mesi e kotsi nakong ea tlhahiso le tšebeliso ea lihlahisoa.
- Li-catalyst tsa tšepe tse seng tsa tšepe e boima(mohlala, bismuth kapa zinki) ho nkela dibutyltin dilaurate (DBTDL) sebaka.
Letšoao la rona la lihlahisoa le sebetsana le mokhoa ona ka litharollo tse kangMXC-B20,MXC-R40,leMXC-T12,tse fanang ka karabelo e ntle haholo ha li ntse li fihlela maemo a machaba a tikoloho le polokeho.
b. Ho lumellana ha Moemeli oa HFO Blowing
Ka ho felisoa ha disebediswa tse nang le GWP e ngata, tse kang HFC-245fa, indasteri e se e amohetse haholoMekhoa e thehiloeng ho HFO(mohlala, HFO-1233zd). Litsamaiso tsena li hloka li-catalyst tse lokisitsoeng hantle ho boloka botsitso lipakeng tsa kinetics ea karabelo le ts'ebetso ea foam. Li-catalyst tsa rona tse lumellanang le HFO, joalo kaMXC-MB20leMXC-70, li entsoe ka ho khetheha ho fana ka liprofaele tse boreleli tsa ho phahama le ho folisa bokaholimo bo botle lits'ebetsong tsa HFO, tse sebelisoang hangata hofoam ea spray, boardstock e thata,leho thibela lisebelisoa tsa motlakase.
c. Dikopo tsa Tshebetso e Phahameng
Lisebelisoa tsa sejoale-joale tsa polyurethane li hloka ho feta ts'ebetso ea foam ea motheo. Litulo tsa likoloi, lieta tsa lieta, lifoam tsa letlalo tse kopaneng, le ho thibela ho hahuoa ha moaho ho bolokang matla kaofela li hloka li-catalyst tse fanang ka:
- Ho lieha ho etsa mosebetsi bakeng sa ho tlatsa hlobo hantle
- Liprofaele tse ntlafalitsoeng tsa ho folisa
- Matlotlo a ntlafalitsoeng a mechini
- Ho lumellana le litsamaiso tse nang le viscosity e phahameng
Lihlahisoa tse kangMXC-37leMXC-54sebeletsa limmaraka tsena ka ho netefatsa phallo e ntle ka ho fetisisa, nako e telele ea tranelate, le ho phekola ka katleho ka morao.
3. Tsoelo-pele ea Theknoloji ho Thehoeng ha Catalyst
Lintlafatso tsa morao tjena theknolojing ea catalyst li kenyelletsa:
- Li-catalyst tse sebetsang ka bongata:Kopanya ho ntsha foam, ho phekola, le ho hohela bokaholimo molek'huleng e le 'ngoe.
- Sistimi ea co-catalyst e kopanetsoeng:Metswako ea li-catalyst tsa amine le tšepe ho laola liprofaele tsa karabelo ka nepo.
- Metswako e tsitsitseng:Li-catalyst tse thehiloeng ho bio kapa mohloli o nchafatsoang li ntse li etsoa lipatlisiso bakeng sa litsamaiso tsa PU tse tala.
Jwalo ka moetsi wa di-catalyst tsa polyurethane, re tsetela hoR\&D ho ntshetsa pele ditharollo tse ikgethilengtse fihlelang litlhoko tse ntseng di fetoha tsa tshebetso, tikoloho le taolo.MXC-TMA,mohlala, e nolofalletsa ho fokotsa mocheso ho laoloang lits'ebetsong tsa foam ea polyisocyanurate (PIR) e sebelisoang liphanele tsa sandwich le ho thibela mocheso o phahameng.
4. Tebello ea 'Maraka oa Lefatše
'Maraka oa lefats'e oa li-catalyst oa polyurethane o lebelletsoe ho hola kaCAGR ea ho feta 5% ho fihlela ka 2030, e khannoang ke:
- Tlhoko e ntseng e eketseha ea thepa ea ho thibela mocheso e bolokang matlakahong le sehatsetsing
- Kholo ea likoloi tsa motlakase le ho bebofatsa boima ba likoloi
- Katoloso ea indasteri ea thepa ea ka tlung le ea materasemoruong o ntseng o hola
- Maano a mmuso a tshehetsang meaho e nang le mosi o fokolang le e tala
Asia-Pacific e ntse e tsoela pele ho ba 'maraka o moholo ka ho fetisisa le o holang ka potlako, o lateloa ke Leboea
Amerika le Yuropa. Bahlahisi ba ntse ba batla hahololi-catalyst tse sebetsang hantletse fanang ka tekano ea litšenyehelo, ho sebetsa hantle, ho latela tikoloho, le boleng ba foam.
5. Boitlamo ba Rona
Jwalo ka moetsi wa setsebi wa di-catalyst tsa polyurethane, re fana ka mefuta e mengata ya dihlahiswa tsa boleng bo hodimo ho kenyeletswa:
- Li-catalyst tse ntšang moholi(MXC-A1, MXC-5, MXC-37)
- Li-catalyst tsa ho jella le ho phekola(MXC-T12, MXC-BDMA, MXC-B20)
- Monko o tlase le li-amine tse arabelang(MXC-R40, MXC-70, MXC-BDMAEE)
- Li-catalyst tse khethehileng tsa trimerization(MXC-TMA)
- Mekhoa e meng e mosa tikolohongho DBTDL le dintho tse ding tse thibetsweng
Re ikemiselitse hoho tšehetsa balekane ba rona ka tataiso ea tekheniki, tšehetso ea tlhahiso, le boqapi bo tsoelang pele ho tsamaisana le litlhoko tse lulang li fetoha tsa indasteri ea polyurethane.
Qetello
Thents'etsopele ea li-catalyst tsa polyurethaneke sesebelisoa sa bohlokoa sa ho etsa boqapi indastering ea foam ea polyureth ane. Ho tloha ho insulation ho ea ho likoloi, ho tloha lits'ebetsong tse tenyetsehang ho ea ho tse thata tsa foam, li-catalyst li netefatsa ho nepahala, polokeho le ts'ebetso eo lits'ebetso tsa sejoale-joale li e hlokang. Ha likhatello tsa tikoloho le litebello tsa theknoloji li ntse li eketseha, bahlahisi ba tlameha ho khetha balekane leditharollo tse nang le bokgoni le tsebo e tebileng ya indasteri.
Re mema bahlahisi, baqapi le matlo a sistimi ho ikopanya le rona ho hlahloba hore na li-catalyst tsa rona tsa polyurethane li ka etsa joang.ntlafatsa tlhahiso ea hau, ho fihlela litlhoko tsa taolo, le ho fana ka liphetho tse sebetsang hantle.
Ikopanye le rona kajenoho ithuta haholoanyane ka pokello ea lihlahisoa tsa rona kapa ho kopa lisampole bakeng sa liteko.
Nako ea poso: Phupu-10-2025