DimethylthiotoluenediaMine (DMTDA) CAS 106264-79-3
DimethylthioToluene Diamie / DMTDA CAS No. 106264-79-3, yog diamines curative rau ob qho tib si TDI thiab MDI systems. Ua cov kua dej khov ntawm chav tsev kub ua rau muaj txiaj ntsig zoo, piv txwv li kev hloov pauv yooj yim, npaj siv yam tsis tau yaj hauv cov khib nyiab zoo li MOCA ua. DMTDA yog tus neeg saib xyuas zoo tshaj plaws siv los ua kom ruaj khov thiab hloov tau polyurethane / polyurea elastomers.
DMTDA tuaj yeem yog ob qho tib si kho tus neeg sawv cev thiab cov saw txuas rau diisocyanate ua ntej-polymers, tshwj xeeb tshaj yog rau polyurea system muab cov khoom zoo thiab cov khoom zoo. DMTDA yog ib tug universal curing neeg sawv cev los ua ke nrog lwm cov kua diamines, piv txwv li DETDA, kom sib txawv curing nqi thiab txhua yam khoom kom tau raws li cov kev cai sib txawv. Yog li ntawd, muaj ntau daim ntawv thov DMTDA ntawm polyurethane log, log tsheb, casters, rollers, elastomeric coatings thiab hais txog. Koj tuaj yeem nrhiav DMTDA-puag cov khoom tiav txhua qhov chaw, suav nrog kev tsim kho, mining, tsheb, hluav taws xob, textiles thiab chaw luam ntawv.
Tsis zoo li MOCA, 4,4'-Methylenebis (2-chloroaniline), DMTDA tsis xav tias muaj cov carcinogens. Nws yog eco-phooj ywg, tsis muaj tshuaj lom thiab muaj kev nyab xeeb rau cov neeg ua haujlwm ua haujlwm thaum lub sijhawm ua haujlwm. Cov txiaj ntsig nrog ua kua, DMTDA yuav tsis ua rau cov plua plav lom, pa taws lossis vapors thaum ua haujlwm. Yog li, cov neeg ua haujlwm yuav tsis raug kev phom sij thaum tuav nrog DMTDA. Thaum ntxov, EU polyurethane cov neeg tsim khoom siv MOCA ua tus neeg sawv cev tseem ceeb rau TDI-based polyurethane systems vim nws tus nqi qis, kev ua tau zoo ntawm tensile zog, durability, resiliency thiab puas. Txhawm rau tiv thaiv cov neeg ua haujlwm thiab ib puag ncig, ntau thiab ntau lub tebchaws txwv tsis pub siv MOCA, yog li, nws yuam cov neeg tsim khoom siv polyurethane los nrhiav MOCA hloov, DMTDA, kuj hu ua kua MOCA. DMTDA tshem tawm feem ntau ntawm cov teeb meem kev noj qab haus huv cuam tshuam nrog kev tuav MOCA thiab muab cov khoom zoo ntawm lub cev sib piv ntawm MOCA-based polyurethanes / polyureas elastomers.
Muaj lwm qhov tseem ceeb ntawm DMTDA piv nrog MOCA. Txij li DMTDA yog nyob rau hauv daim ntawv ua kua, nws tso cai rau kev khiav hauj lwm ntawm qhov kub thiab txias tshaj MOCA ua. Yog tsis muaj txheej txheem melting uas yog ib qho yuav tsum tau ntawm MOCA, koj tuaj yeem txuag tau nyiaj ntau lub zog thaum tsim khoom. Qhov muaj peev xwm ntawm solidification tsis tshwm sim hauv cov thawv sib xyaw lossis cov tshuab sib xyaw. Tsis tas li ntawd, nws tuaj yeem ua haujlwm ntawm qhov kub qis dua MOCA rau nws lub xeev ua kua. Qhov hnyav sib npaug ntawm DMTDA yog 107 piv nrog MOCA yog 133.5. Qhov no txhais tau tias 20% txo qhov hnyav ntawm prepolymer ntawm tib stoichiometr
DMTDA yog siv los ua PU curing agent. Nws tuaj yeem ua rau qeeb ntawm "NH2" pawg, yog li, txhawm rau txuas lub lauj kaub lub neej thaum casting.
DMTDA , ua kua nyob rau hauv chav tsev kub ua rau ib tug tseem ceeb ua kom zoo dua nyob rau hauv kev sib piv ntawm MOCA, melting down ntawm cov khib nyiab yog tsis tsim nyog. Tsis tas li ntawd, nws daim ntawv ua kua tso cai rau cov txheej txheem prepolymer ntawm qhov kub qis dua li ntawm MOCA thiab tsis muaj kev sib xyaw ua ke thaum sib xyaw. DMTDA muaj qhov hnyav sib npaug ntawm 107 piv rau 133.5 ntawm MOCA. Qhov no txhais tau hais tias kwv yees li 20% tsawg dua los ntawm qhov hnyav yog xav tau rau ib qho prepolymer muab ntawm tib stoichiometry.
Sib piv ntawm Lub Cev Khoom ntawm Prepolymer Kho nrog DMTDA & MOCA
Lub cev muaj zog ntawm prepolymer, ob qho tib si ether thiab ester hom, thaum kho nrog DMTDA curing agent, yog piv rau cov raws li MOCA. Raws li nyob rau hauv MOCA curing system, lub cev muaj zog yog rhiab rau cov ration (stoichiometry) ntawm curative rau prepolymer. DMTDA curative exhibition kam rau stoichiomety variations zoo ib yam li MOCA. Tsawg stoichiomety (80 ~ 90%) feem ntau yuav ua rau kom muaj zog compression teeb tsis kam, thaum siab stoichiomety (100-105%) nyiam ua kom lub zog tsim kua muag thiab lub neej yooj yim. Cov txiaj ntsig zoo tshaj plaws rau feem ntau daim ntawv thov tau txais ntawm li 95% stoichiometry. Thaum kho tej yam kev mob (kub thiab lub sij hawm) zoo ib yam li cov siv nrog MOCA, DMTDA curative yuav tsum tau ua tib zoo saib xyuas tom qab kho mob kom tau txais qhov siab tshaj plaws lub cev, tshwj xeeb tshaj yog rau compression set thiab dynamic zog.
DMTDA yog dav siv nyob rau hauv txheej txheej hauv architectural, automotive, marine thiab industrial txij nkawm teb. DMTDA-based polyurethanes txheej yog nrog kev ua haujlwm siab, xws li toughness thiab elasticity, siab zog, tsis muaj dej, huab cua tsis kam, puas kuj, khawb thiab corrosion kuj. DMTDA-based polyurethanes tuaj yeem siv los ntawm cov txheej txheem txheej txheej sib txawv rau cov substrates, xws li hlau, ntoo, pob zeb, masonry thiab yas.
DMTDA kuj tseem tuaj yeem siv los ua epoxy resin curing tus neeg saib xyuas / cov khoom siv rwb thaiv tsev thiab PU elastomers, xws li polyurethane thiab polyurea siv rau txhua yam los ntawm cov coatings siab ntev mus rau cov ntaub ntawv ua npuas ncauj, txawm tias lub log thiab cov log tsheb. Tsis tas li ntawd, DMTDA tuaj yeem siv rau hauv tsheb, tsev, mining, textile, luam ntawv rollers, trolley log, adhesives thiab hluav taws xob industries.
Ntim: 25kg, 200kg / hlau nruas. los yog IBC TANK.
Kev khaws cia thiab kev thauj mus los: Tsis txhob sib cuag nrog dej. Cia kom deb ntawm tshav ntuj.
Txee lub neej: 12 npauj
| Yam khoom | Index |
| Qhov tshwm sim | Lub teeb daj mus rau daj pob tshab kua |
| tsw | Amine zoo li |
| Cov ntsiab lus ntawm tag nrho Diamine | 99% min |
| Dimethylthiotoluenediamine | 95% min |
| Monomethylthiotoluenediamine | 4% max |
| Trimethylthiotoluenediamine | 1% max |
| TDA cov ntsiab lus | 0.1% max |
| Xim, Gardner xim nplai | 2-8 |
| Amine tus nqi (mgKOH / g) | 520-540 : kuv |
| Moisture (%) | 0.1% max |
| 1. | |
| 2. | |
| 3. | |
| 4. | |
| 5. | |
| 6. | TSI 80/20 |
| 7. | TDI-Base Polyisoyanurate (RC) |
| 8. | IS (1,5-Naphthalene Diisocyanate) CAS 3173-72-6 |
| 9. | RF (JQ-4) |
| 10. | RN |
| 11. | DETDA CAS 68479-98-1 |
| 12. | DMTDA CAS 106264-79-3 |
| 13. | MMEA CAS 19900-72-2 Nr |
| 14. | TODI CAS 91-97-4 |
| 15. | CAS Nr .: 122-51-0 |
| 16. | MOCA CAS 101-14-4 |
| 17. | PTSI CAS 4083-64-1 |
| 18. | lwm... |
