Ntawm lub ntuj ci ntsa iab uas muaj cov khoom siv tshuaj lom neeg, m-phenyldimethylamine, nrog nws cov yam ntxwv tshwj xeeb thiab zoo heev, tau dhau los ua ib qho tseem ceeb hauv ntau lub lag luam, ua tus thawj coj hauv kev hloov pauv kev lag luam thiab kev tsim kho tshiab tom qab lwm qhov.
M-phenyldimethylamine yog ib yam kua tsis muaj xim nyob rau hauv chav tsev kub, nrog rau qhov hnyav molecular ntawm 136.194, qhov ceev ntawm 1.1 ± 0.1 g / cm³, lub ntsiab lus boiling ntawm 247.0 ± 0.0 ° C (760 mmHg), thiab lub ntsiab lus melting ntawm 14 ° C. Hauv nws cov qauv molecular, cov aliphatic primary amine pawg thiab lub nplhaib benzene tau sib xyaw ua ke, ua rau nws muaj ntau yam khoom zoo kawg nkaus.
Lub "super Engine" hauv thaj chaw ntawm epoxy curing
Ua ib yam khoom siv kho epoxy resin, m-phenyldimethylamine yog ib tug thawj coj hauv kev lag luam. Vim nws muaj cov pab pawg aliphatic primary amine, nws tuaj yeem ua rau cov tshuaj kho sai sai ntawm qhov kub thiab txias, ua rau lub voj voog tsim khoom luv dua thiab txhim kho kev tsim khoom zoo dua. Cov khoom kho tsis tsuas yog tiv taus cua sov zoo heev thiab tuaj yeem ruaj khov hauv qhov chaw kub siab, uas zoo dua li cov aliphatic polyamines feem ntau; Nws kuj tseem muaj kev tiv thaiv tshuaj zoo heev. Txawm hais tias nws yog cov kuab tshuaj organic xws li toluene lossis cov tshuaj corrosive xws li 10% wt sulfuric acid, nws nyuaj rau ua rau nws puas tsuaj. Qhov no tau ua rau nws ci ntsa iab hauv cov teb ntawm cov nplaum roj teeb thiab cov nplaum tom qab. Nrog rau qhov zoo ntawm viscosity qis, yooj yim ntws thiab nkag mus zoo heev, nws ua kom ntseeg tau tias cov nplaum tuaj yeem kaw tau zoo, tiv taus kev yaig ntawm cov roj acid thiab kua qaub, thiab tiv taus kev cuam tshuam los ntawm lub zog sab nraud, yog li tiv thaiv kev ua haujlwm zoo thiab ruaj khov ntawm cov roj teeb. Lub caij no, thaum siv cov tshuaj pleev xim tiv thaiv xeb rau kev kho choj, cov kav dej, cov thawv nkoj, hauv pem teb, thiab lwm yam, m-phenylenediamine, ua ke nrog epoxy resin, tuaj yeem ua kom muaj kev sib txuas zoo txawm tias nyob rau hauv qhov chaw noo noo, tiv taus cov xwm txheej hnyav thiab ntev lub neej kev pabcuam ntawm cov chaw.
"Kev Txhawb Nqa Kev Tsim Kho Tshiab" rau ntau yam lag luam
Hauv kev tsim cov polyurethane resins thiab coatings, m-phenyldimethylamine ua haujlwm ua cov khoom siv tseem ceeb thiab koom nrog kev tsim cov qauv molecular ua tau zoo. Nws tuaj yeem txhim kho qhov yooj ywm, hnav tsis kam thiab cuam tshuam tsis kam ntawm cov ntaub ntawv polyurethane, ua rau cov txheej txheem nrog kev tiv thaiv huab cua zoo dua thiab ci ntsa iab. Nws yog siv dav hauv kev kho kom zoo nkauj thiab kev tiv thaiv hauv rooj tog, tsheb, kev tsim kho thiab lwm yam teb. Hauv kev lag luam ntawm cov roj hmab additives, nws qhov ntxiv tuaj yeem ua kom zoo dua cov txheej txheem vulcanization ntawm roj hmab, txhim kho lub zog, elasticity thiab kev laus tsis kam ntawm cov khoom roj hmab, thiab txhim kho qhov zoo ntawm cov khoom roj hmab los ntawm cov log tsheb mus rau cov roj hmab foob. Tsis tas li ntawd, m-phenyldimethylamine kuj yog ib qho tseem ceeb monomer rau kev tsim cov khoom nylon ua tau zoo xws li polyadipylm-phenyldimethylamine (MXD6). MXD6, nrog nws cov qauv tshwj xeeb uas muaj m-phenyldimethylamine, muaj cov yam ntxwv thaiv siab (oxygen permeability tsuas yog 1/10 ntawm PA6), lub zog siab thiab kev tawv (tensile lub zog txog li 280MPa, flexural modulus txog li 24GPa), tiv taus cua sov zoo (kub hloov pauv cua sov txog li 73.8 ℃, 1.8MPa), thiab nqus dej tsawg. Nws tau ua pov thawj tias muaj peev xwm siv tau zoo hauv cov teb tshiab xws li cov khoom siv sib dua rau cov neeg hlau, cov khoom siv rau cov tsheb fais fab tshiab, thiab cov khoom ntim khoom noj khoom haus zoo, thiab tau dhau los ua lub zog tseem ceeb uas tsav kev txhim kho kev lag luam. Tsis yog li ntawd xwb, hauv ntau yam lag luam xws li cov yas photosensitive, tshuaj tua kab, cov neeg sawv cev ua tiav fiber, cov tshuaj tiv thaiv xeb, cov neeg sawv cev chelating, cov roj nplua nyeem, thiab kev ua ntawv, m-phenyldimethylamine, nrog nws cov yam ntxwv tshwj xeeb, muab lub zog tsav tsheb tas mus li rau kev tsim khoom tshiab thiab kev ua haujlwm zoo.
Txij thaum pib tsim khoom mus txog rau thaum kawg, m-phenyldimethylamine ua raws li kev tswj xyuas zoo. Cov txheej txheem tsim khoom siv cov thev naus laus zis siab heev, pib los ntawm kev sib xyaw ntawm m-xylene thiab p-xylene, thiab tom qab ntawd dhau los ntawm kev sib xyaw oxidation nrog huab cua thiab ammonia los tsim m-xylene thiab p-phenyldimethylnitrile. Tom qab ntawd, nws dhau los ntawm ntau cov kauj ruam meej xws li ntxuav dej, ziab, thiab catalytic hydrogenation, thaum kawg tau txais cov khoom ntshiab siab. Txhua pawg khoom raug kuaj xyuas nruj kom ntseeg tau tias muaj kev ntshiab ntawm ≥ 99.0%, nrog txhua qhov ntsuas ruaj khov thiab txhim khu kev qha, muab rau cov neeg siv khoom nrog kev xaiv zoo siab. Cov khoom tau ntim rau hauv 200-kilogram yas nruas rau kev thauj mus los yooj yim thiab khaws cia. Nws yuav tsum khaws cia rau hauv qhov chaw txias thiab cua zoo, ua raws li cov cai khaws cia thiab kev thauj mus los rau cov khoom kub hnyiab thiab lom kom ntseeg tau tias qhov zoo ntawm cov khoom tsis cuam tshuam.
M-phenyldimethylamine, nrog nws cov kev ua tau zoo tshaj plaws ua lub hauv paus thiab ntau yam kev siv ua tis, tab tom pab ntau yam kev lag luam tawg los ntawm cov teeb meem kev siv tshuab thiab pib txoj kev taug kev tshiab ntawm kev zoo dua thiab kev txhim kho tshiab dua. Koom tes nrog m-phenyldimethylamine thiab puag ncig yav tom ntej ntawm kev lag luam tshuaj lom neeg ua ke!
Lub sijhawm tshaj tawm: Lub Rau Hli-30-2025
