| Tus neeg sawv cev kho rau Epoxy thiab polyurethane | ||||||
| Tus lej | MOFAN Qib | Lub Npe Tshuaj | Cov Qauv Qauv | Qhov Hnyav Molecular | Tus lej CAS | Daim Ntawv Thov |
| 1 | MOFAN DBU | 1,8-Diazabicyclo[5.4.0]undec-7-ene |  | 152.24 | 6674-22-2 | Ib tug neeg sawv cev rau epoxy resins thiab polyurethane. |
| 2 | MOFAN SA-1 | DBU/phenoxide ntsev |  | 246.35 | 57671-19-9 | Cov tshuaj catalyst thermosensitive siab ua haujlwm ntawm ca.40 ~ 50 ℃ |
| 3 | MOFAN SA-102 | DBU/2-ethylhexanoate ntsev |  | 296.4 | 33918-18-2 | Cov tshuaj catalyst thermosensitive siab ua haujlwm ntawm ca.50 ~ 60 ℃ - |
| 5 | MOFAN DB60 | DBU / Phthalic Acid Ntsev |
| 318.37 | 97884-98-5 | Cov tshuaj catalyst thermosensitive siab Ua haujlwm ntawm 90 ℃ lossis siab dua. |
MOFAN DBU
Kuv xav tau ib qho tshuaj catalyst muaj zog rau cov txheej txheem kho epoxy-anhydride. DBU ua haujlwm li cas?
DBU yog ib qho tshuaj catalyst muaj zog zoo heev uas ua rau cov tshuaj epoxy-anhydride ua haujlwm sai dua ntawm 80–120 ° C, txo lub sijhawm kho los ntawm 50% lossis ntau dua.
Kuv cov nplaum epoxy tsis muaj zog thaum kub heev. DBU puas tuaj yeem txhim kho nws?
Yog lawm, DBU txhawb kev sib txuas ua tiav ntau dua, ua rau qhov kub hloov pauv iav (Tg) nce ntxiv 10–20 ° C piv rau cov tertiary amines zoo li DMP-30.
Puas yog DBU tsim nyog rau cov qauv epoxy ib qho latent?
Tsis yog ua ib lub hauv paus ntshiab; nws reacts nrog epoxy ntawm chav sov. Siv cov DBU derivatives thaiv xws li MOFAN SA-1 lossis SA-102 rau ib-component systems.
Kuv cov polyurethane elastomer xav tau cov tshuaj trimerization muaj zog kom tiv taus cua sov tau zoo dua. DBU puas siv tau?
Yog, DBU zoo rau kev trimerization ntawm isocyanate; siv 0.1–0.5 phr kom ua rau muaj kev ruaj khov ntawm thermal.
Qhov ntau npaum li cas ntawm DBU uas pom zoo kom siv rau hauv lub kaw lus epoxy-amine uas muaj ob yam khoom sib xyaw ua ke ntawm qhov kub thiab txias hauv chav tsev?
0.5–2 phr (raws li epoxy resin); nws ua rau lub lauj kaub siv tau ntev dua, yog li siv kom zoo rau cov khoom me me.
Kuv cov txheej epoxy tsis khov tag thaum kub tsawg (5°C). DBU puas pab tau?
Yog, DBU tswj tau cov catalytic activity txawm tias nyob rau hauv qhov kub qis; nce mus rau 2-3 phr rau lub caij ntuj no formulations.
Puas yog DBU ua rau daj hauv cov epoxy castings meej?
Yog, nws tuaj yeem ua rau muaj kev hloov pauv xim; rau qhov pom tseeb ntawm qhov muag, siv cov tshuaj catalyst uas tsis yooj yim dua lossis cov qauv thaiv.
Kuv cov khoom siv carbon fiber composite prepreg xav tau kev kho sai ntawm 120 ° C. DBU puas haum?
Yog, tab sis vim nws yog kua thiab ua haujlwm tau zoo thaum sov li chav tsev, khaws cov prepreg kom khov. Xav txog SA-102 kom muaj sijhawm ntev dua.
Puas siv tau DBU ua ib yam khoom nqus CO₂ los yog siv ua polyurethane ua npuas ncauj ua ib yam khoom catalyst rau trimer?
Yog, DBU siv rau hauv kev ntes CO₂ thiab ua tus catalyst trimer rau PIR ua npuas ncauj (0.2–0.6 phr).
Lub txee lub neej ntawm MOFAN DBU hauv lub thawv qhib yog dab tsi?
12 lub hlis yog tias khaws cia qhuav thiab nyob rau hauv nitrogen; nws nqus CO₂ los ntawm huab cua tsim carbonate, txo cov haujlwm.
MOFAN SA-1
Kuv xav tau cov nplaum epoxy ib feem uas ruaj khov ntev hauv chav tsev tab sis khov sai ntawm 40–50°C. Puas yog SA-1 haum?
Yog, MOFAN SA-1 yog ntsev DBU uas raug thaiv uas tseem tsis ua haujlwm hauv qab 40 ° C thiab ua haujlwm sai sai ntawm 40–50 ° C, muab 6+ lub hlis ntawm lub neej txee hauv chav sov.
Kuv cov nplaum epoxy structural film yuav tsum tau kho ntawm 50°C rau 30 feeb. SA-1 ntau npaum li cas?
1–3 phr raws li epoxy resin; nws muab kev kho tag nrho hauv 30 feeb ntawm 50 ° C yam tsis tas yuav tsum tau siv qhov cub kub siab.
Puas siv tau SA-1 rau hauv cov polyurethane ib qho khoom siv kho dej noo?
Tsis pom zoo; nws yog tsim los rau epoxy. Rau PU, siv cov amine uas raug thaiv zoo li MOFAN SA-102.
Kuv cov khoom siv carbon fiber prepreg yuav tsum tau khaws cia rau hauv chav sov li ntau lub hlis. Puas yog SA-1 muab kev ncua sijhawm zoo?
Yog, SA-1 muab kev ncua sijhawm zoo heev hauv epoxy-anhydride lossis epoxy-dicyandiamide systems; khaws cov formulation kom qhuav.
Qhov kub ntawm SA-1 ua haujlwm yog dab tsi?
Kwv yees li ntawm 40–50°C. Hauv qab 40°C, cov tshuaj catalyst yeej tsis muaj zog.
Kuv cov khoom siv hluav taws xob uas siv rau hauv lub lauj kaub yuav tsum tau kho kom sov tsawg (50°C) kom tsis txhob ua rau cov khoom puas tsuaj. Puas yog SA-1 yog qhov kev xaiv zoo?
Yog, SA-1 kho tau ntawm 50°C yam tsis muaj exotherm spikes; siv 1.5–2.5 phr kom kho tau tag nrho hauv 1–2 teev.
Puas yog SA-1 ua rau xeb ntawm tooj liab lossis lwm yam hlau?
Tsis yog, cov ntsev phenoxide feem ntau tsis yog corrosive; txawm li cas los xij, sim seb koj puas kov tau hlau.
Kuv cov nplaum epoxy poob zog tom qab kev laus los ntawm cua sov. SA-1 puas tuaj yeem txhim kho kev tiv thaiv kev laus?
Qhov DBU uas raug thaiv muab kev kho kom zoo dua, txo kev ntxhov siab sab hauv thiab txhim kho kev laus ntawm cua sov.
Puas siv tau SA-1 nrog cov anhydride hardeners rau cov tshuaj epoxy molding uas kub heev?
Yog, SA-1 ua haujlwm zoo nrog anhydrides (piv txwv li, MHHPA, THPA) rau kev kho ntawm 80–100 ° C, muab Tg siab.
Cov qauv ib txwm muaj rau ib qho tshuaj epoxy nrog SA-1 yog dab tsi?
Cov tshuaj epoxy resin (100 phr), anhydride hardener (80–100 phr), SA-1 (1–3 phr), thiab cov tshuaj fillers raws li qhov xav tau. Khaws cia rau hauv qab 30°C.
MOFAN SA-102
Kuv xav tau cov nplaum epoxy ib feem uas kho tau ntawm 50–60°C rau kev sib txuas ntawm cov qauv tsheb. Vim li cas ho xaiv SA-102?
SA-102 muaj qhov kub ua haujlwm siab dua me ntsis (50–60°C) dua li SA-1, ua rau muaj kev ruaj khov zoo dua hauv chav tsev thaum tseem kho tau ntawm qhov kub nruab nrab.
Kuv cov polyurethane ib qho khoom siv uas kho tau dej noo xav tau cov tshuaj catalyst uas ua haujlwm ntawm 60°C. Puas yog SA-102 tsim nyog?
Yog, SA-102 siv tau rau hauv cov tshuab polyurethane ua ib qho catalyst thaiv, tshwj xeeb tshaj yog rau cov ntawv thov kho mob ntawm 60–80 ° C.
Qhov zoo ntawm SA-102 dua li SA-1 yog dab tsi?
SA-102 muab kev ruaj khov ntev dua ntawm qhov kub thiab txias hauv chav tsev (ntau tshaj 12 lub hlis) thiab lub sijhawm ua haujlwm ntse dua.
Kuv cov epoxy prepreg rau cov hniav cua turbine yuav tsum tau kho ntawm 60 ° C rau 2 teev. Kuv yuav tsum siv qib twg ntawm SA-102?
1–2 phr (ntawm epoxy) ua ke nrog cov khoom siv tawv (dicyandiamide lossis anhydride).
Puas yog SA-102 ua haujlwm nrog polyurethane casting systems kom ncua qhov tshuaj tiv thaiv kom txog thaum sov?
Yog, nws siv tau los ua ib qho khoom siv polyurethane uas kho tau kub; cov koob tshuaj ib txwm muaj 0.5–1.5 phr.
Kuv cov khoom siv hluav taws xob encapsulation xav tau ib lub kaw lus uas tsis muaj viscosity ntau, ib qho khoom. Puas siv tau SA-102?
Yog, SA-102 yaj tau hauv feem ntau cov epoxy resins thiab tsis ua rau viscosity nce ntxiv.
Lub sijhawm txee ntawm ib qho epoxy formulation uas muaj SA-102 ntawm 25 ° C yog dab tsi?
Feem ntau yog 6–12 lub hlis nyob rau hauv ib lub thawv kaw thiab qhuav; tsis txhob kom noo noo thiab qhov kub thiab txias heev.
Puas siv tau SA-102 los kho cov epoxy-phenolic resins rau cov txheej txheem kub siab?
Yog lawm, nws ua kom qhov kev sib txuas ntawm epoxy thiab phenolic resins nrawm dua ntawm 80–100 ° C.
Kuv cov nplaum tsis khov rau hauv cov ntu tuab vim yog lub cua sov. SA-102 pab tau li cas?
Nws qhov kev ua kom sov ua kom ntseeg tau tias nws kho tau txawm tias muaj ntau qhov loj thaum qhov kub ua kom sov tau mus txog.
SA-102 puas muaj tshuaj lom lossis txaus ntshai?
Nws tsis tshua muaj kev hloov pauv tab sis ua rau khaus tawv nqaij; kov nrog hnab looj tes. Nws tsis muaj cov hlau hnyav.
MOFAN DB60
Kuv tsim cov nplaum epoxy uas muaj ib feem xwb uas yuav tsum ruaj khov rau ntau lub hlis ntawm 40 ° C thiab tsuas yog kho tau siab tshaj 90 ° C. DB60 puas yog qhov kev xaiv zoo?
Yog lawm, MOFAN DB60 muaj qhov kub thiab txias ntawm 90 ° C lossis siab dua, muab kev ncua sijhawm zoo heev txawm tias nyob rau hauv huab cua kub.
Kuv cov hmoov txheej rau cov khoom hlau xav tau tus neeg sawv cev kho uas ua haujlwm ntawm 120 ° C. DB60 puas siv tau rau hauv cov hmoov epoxy hybrid?
Yog, DB60 ua haujlwm zoo hauv epoxy hmoov txheej; qib ib txwm muaj 1-3% ntawm tag nrho cov resin, kho ntawm 120-150 ° C.
Qhov zoo ntawm DB60 hla SA-102 hauv cov ntawv thov prepreg yog dab tsi?
DB60 tso cai rau kev khaws cia ntawm qhov kub thiab txias (txawm tias txog li 40 ° C) yam tsis muaj kev nce qib, zoo tagnrho rau kev tsim khoom loj prepreg.
Kuv cov khoom siv carbon fiber composite yuav tsum tau kho kom sov ntawm 130 ° C rau 30 feeb. Kuv yuav tsum siv DB60 ntau npaum li cas?
2–4 phr raws li epoxy; nws muab kev kho sai nrog qhov tso tawm tsawg kawg nkaus.
DB60 puas siv tau rau hauv cov polyurethane high-temperature curing systems?
Yog, ua ib qho catalyst thaiv rau kev sib txuas polyurethane uas ua kom sov, piv txwv li, hauv cov nplaum kub uas yaj.
DB60 puas ua rau muaj kev hloov pauv xim hauv cov xim epoxy tom qab kho qhov kub siab?
Tsawg heev; nws tsim cov xim daj ntseg daj, tsawg dua li ntau lwm cov catalysts latent.
Kuv cov tshuaj nplaum epoxy ib feem tsis nplaum zoo rau txhuas tom qab kho tau zoo lawm. DB60 puas tuaj yeem txhim kho qhov nplaum tau?
Tsis yog ncaj qha; tab sis vim nws tso cai rau kev kho kom huv si, kub siab yam tsis muaj kev tsis haum ua ntej, kev sib txuas tuaj yeem txhim kho.
Cov khoom siv sib xyaw ua ke nrog DB60 rau ib qho epoxy yog dab tsi?
Dicyandiamide (dicy) lossis anhydrides (MHHPA, nadic methyl anhydride) feem ntau siv.
Kuv cov khoom sib xyaw ua ke muaj qhov khoob vim yog gelling ua ntej lub sijhawm. DB60 puas yuav tshem tawm cov qhov khoob?
Yog lawm, nws qhov kub siab ua kom cov resin ntws tau zoo thiab cua tawm ua ntej pib kho.
Lub sijhawm txee ntawm DB60 hauv masterbatch yog dab tsi?
Tshaj 12 lub hlis thaum khaws cia rau hauv qab 30 ° C hauv lub thawv qhuav thiab kaw.