Molao-motheo oa tlhahiso ea thepa ea ho thibela foam ea spray
Spray Foam Insulation (SPF) ke thepa e tsoetseng pele ea ho thibela mocheso e entsoeng ka ho laola ka nepo karabelo ea lik'hemik'hale ea likarolo tse peli tsa bohlokoa tsa mokelikeli, polyol resin le isocyanate. Ha likarolo tsena tse peli li kopantsoe sesebelisoa se khethehileng sa ho fafatsa, karabelo e potlakileng ea polymerization e etsahala tlas'a ts'ebetso ea catalyst, 'me khase ea carbon dioxide e lokolloa ka nako e le' ngoe, e leng se etsang hore motsoako o atolohe ka makhetlo a 30-60 ka metsotsoana e seng mekae, qetellong ho thehoe foam ea polyurethane e nang le litšobotsi tse ntle tsa ho thibela mocheso.
Motheo oa ts'ebetso ena ea lik'hemik'hale ke karabelo ea polymerization ea isocyanate (-NCO) le polyol (-OH), le karabelo ea foam ea isocyanate le metsi ho hlahisa carbon dioxide. Tekanyo ea liketso tsena tse peli tse qothisanang lehlokoa e khetholla ka ho toba ts'ebetso ea ho qetela ea foam, 'me mona ke moo li-catalyst tsa polyurethane li bapalang karolo ea bohlokoa.
Tshebetso e ntle haholo eaMXC-BDMAsesebelisoa sa ho baka
MXC-BDMA ea rona (N,N-dimethylbenzylamine, CAS 103-83-3) ke sesebelisoa sa amine se sebetsang hantle haholo se ntlafalitsoeng bakeng sa foam e thata ea polyurethane, se bonts'a melemo e mengata ea tekheniki tlhahisong ea lisebelisoa tsa ho thibela foam ea spray:
1. Taolo e nepahetseng ea karabelo
- E fana ka tekano e phethahetseng ea liketso tsa foam/gelling
- E netefatsa hore mothapo o tsitsitseng oa ho phahama le nako ea ho fola
- E ikamahanya le maemo a fapaneng a mocheso le mongobo
2. Boleng bo botle ba foam
- E bopa sebopeho se lekanang le se setle sa sele e koetsoeng (karolelano ea sele e koetsoeng >90%)
- E ntlafatsa phallo ea foam kapele 'me e netefatsa hore e tlatsoa ka botlalo
- E eketsa matla a ho kopanya pakeng tsa foam le li-substrate tse fapaneng
3. Melemo ea ts'ebetso
-E loketse litsamaiso tsa ho etsa dikahare tse tiileng haholo
- E lumellana le mefuta e fapaneng ea lintho tse fokang (HFC, HFO, metsi, jj.)
- E fokotsa monko o tloaelehileng oa amine 'me e ntlafatsa tikoloho ea kaho
Sehokeloleano la khetho ea sistimi
Tlhahisong ea foam ea spray, khetho ea li-catalyst e hloka ho nahana ka lintlha tse latelang tsa bohlokoa:
1. Maemo a tlelaemete: tšusumetso ea mocheso le mongobo karabelong
2. Litšobotsi tsa substrate: litlhoko tsa ho kopanya bakeng sa substrate tse fapaneng tse kang tšepe, lehong, konkreite, jj.
3. Ts'ebetso ea kaho: liphapang lipakeng tsa ho fafatsa ka letsoho le tlhahiso e tsoelang pele ea mechini
4. Matšoao a tshebetso: ditlhoko tse ikgethang tse kang ho tsamaisa mocheso, ho kwala ha mathoko, le tekanyo ya mollo
MXC-BDMA e ka sebelisoa hammoho le li-catalyst tsa tšepe ea tlhaho (joalo ka stannous octoate) ho ntlafatsa haholoanyane kinetics ea karabelo ka litlamorao tsa synergistic. Litharollo tsa tekheniki tseo re li khothaletsang li kenyelletsa:
- Ho thibela lebota la kantle la moaho: MXC-BDMA ke sistimi e ka sehloohong ea catalyst ho netefatsa hore e fola kapele
- Ho thibela ho boloka serame: sistimi ea catalyst e kopaneng ho ntlafatsa sekhahla sa lisele tse koetsoeng le botsitso ba litekanyo
- Ho thibela liphaephe tsa indasteri: mokhoa o khethehileng oa ho ikamahanya le kaho e rarahaneng ea bokaholimo bo kobehileng
Tšehetso ea botekgeniki ea litsebi le lits'ebeletso
Re fana ka tšehetso e felletseng ea tekheniki bakeng sa bahlahisi ba foam ea spray le lik'hamphani tsa kaho:
- Ntlafatso ea foromo: ntlafatsa sistimi ea catalyst ho latela liparamente tsa hau tsa lisebelisoa le litlhoko tsa sehlahisoa
- Tataiso ea ts'ebetso: fana ka litlhahiso tsa bohlokoa tsa liparamente tse kang mocheso le khatello
- Taolo ea boleng: thusa ho theha sistimi e felletseng ea tlhahlobo ea ts'ebetso
- Tšehetso sebakeng seo: tataiso ea basebetsi ba tekheniki ho laela tlhahiso le ho rarolla mathata
Fumana tlhahisoleseding ea sehlahisoa
Bakeng sa tlhahisoleseding e qaqileng ea tekheniki mabapi le catalyst ea MXC-BDMA kapa ho etsa kopo ea tlhahlobo ea sampole, ka kopo ikopanye le sehlopha sa rona sa tekheniki ka mekhoa e latelang:
Email: info@mingxuchem.com
Webosaete: www.mingxuchem.com
Khetha tharollo ea setsebi ea catalyst ho etsa hore lihlahisoa tsa hau tsa foam ea spray li hlahelle mabapi le ts'ebetso ea ho thibela mocheso, katleho ea kaho le botsitso ba boleng!
Nako ea poso: Mots'eanong-09-2025