Itandukaniro hagati ya MDI na TDI

TDI na MDI zombi ni ubwoko bwibikoresho fatizo mu musaruro wa polyurethane, kandi birashobora gusimburana ku rugero runaka, ariko nta tandukaniro rito riri hagati ya TDI na MDI mubijyanye nimiterere, imikorere no gukoresha ibice.

1. Ibirimo isocyanate biri muri TDI biruta ibya MDI, kandi ingano ya furo kuri buri gice ni kinini.Izina ryuzuye rya TDI ni toluene diisocyanate, ifite amatsinda abiri ya isocyanate kumpeta imwe ya benzene, naho itsinda rya isocyanate ni 48.3%;izina ryuzuye rya MDI ni diphenylmethane diisocyanate, ifite impeta ebyiri za benzene naho itsinda rya isocyanate ni 33,6%;Mubisanzwe, hejuru yibirimo bya isocyanate, nini nini yubunini bwa furo, ugereranije rero na bibiri, ingano ya TDI yibice byinshi.

2. MDI ntabwo ifite uburozi buke, mugihe TDI ifite uburozi bukabije.MDI ifite umuvuduko muke wumuyaga, ntabwo byoroshye guhindagurika, nta mpumuro mbi itera, kandi ntabwo ari uburozi kubantu, kandi nta bisabwa byihariye byogutwara;TDI ifite umuvuduko mwinshi wumuyaga, iroroshye guhindagurika, kandi ifite impumuro ikomeye.Hano haribisabwa bikomeye.

3. Gusaza umuvuduko wa sisitemu ya MDI irihuta.Ugereranije na TDI, sisitemu ya MDI ifite umuvuduko ukiza wihuse, ingufi ngufi kandi ikora neza.Kurugero, TDI ishingiye kuri ifuro ikenera 12-24h yo gukiza kugirango igere kumikorere myiza, mugihe MDI sisitemu ikeneye 1h gusa kugirango igere kumikorere myiza.95% gukura.

4. MDI biroroshye guteza imbere ibicuruzwa bitandukanye byifuro hamwe nubucucike buri hejuru.Muguhindura igipimo cyibigize, irashobora kubyara ibicuruzwa bifite intera nini yo gukomera.

5. Hasi ya polimerize MDI ikoreshwa cyane cyane mukubyara ifuro rikomeye, rikoreshwa mukubaka ingufu,firigo firigo, n'ibindi. Ubwubatsi bwisi yose bugera kuri 35% byimikoreshereze ya MDI ya polymerisime, na firigo na firigo bigera kuri 20% byokoresha MDI ya polymerized;MDI yera cyane Ikoreshwa mukubyara pulp,inkweto inkweto, elastomers, nibindi, kandi bikoreshwa muruhu rwubukorikori, gukora inkweto, imodoka, nibindi.;mugihe epfo ya TDI ikoreshwa cyane cyane ifuro ryoroshye.Bigereranijwe ko hafi 80% ya TDI kwisi ikoreshwa mugukora ifuro ryoroshye, rikoreshwa mubikoresho, mu modoka no mubindi bice.