Tsuas yog TDI, MDI, H12MDI, Kuj tseem muaj lwm cov isocyanates.
IPDI (Isophorone Diisocyanate)
IPDI yog ib qho ntawm feem ntau siv cycloaliphatic isocyanates nyob rau hauv siab -kev ua tau zoo polyurethane systems.
Piv nrog rau cov tshuaj tsw qab isocyanates, IPDI muaj qhov cuam tshuam qis dua thiab tso cai rau kev tswj kom zoo dua thaum lub sijhawm polyurethane synthesis. Nws ob pawg isocyanate nthuav tawm cov kev ua ub no sib txawv, ua IPDI zoo heev rau kev npaj polyurethane prepolymers thiab cov qauv tshwj xeeb.
Polyurethane cov khoom tsim nrog IPDI muab cov huab cua zoo heev, UV stability, tshuaj tiv thaiv, thiab ntev - lub sij hawm zoo li khaws cia.
IPDI feem ntau yog siv rau hauv cov dej polyurethane coatings, automotive finishes, industrial coatings, adhesives, sealants, electronics, and premium elastomer applications where long-term durability.
HDI (Hexamethylene Diisocyanate)
HDI yog ib qho aliphatic diisocyanate uas ua ke nrog huab cua tsis zoo nrog cov xim zoo nkauj.
Nws yog dav siv nyob rau hauv siab -kev ua tau zoo polyurethane txheej, tiv thaiv tiav, nplaum, sealants, thiab tshwj xeeb polyurethane systems uas yuav tsum tau zoo heev sab nraum zoov durability.
HDI nws tus kheej feem ntau hloov mus rau hauv HDI trimers thiab lwm yam derivatives, uas yog dav siv los ua cov tshuaj tua kab mob rau ob-cov txheej txheem polyurethane txheej. Cov khoom no muab zoo heev gloss tuav, tshuaj tiv thaiv, thiab mechanical kev ua tau zoo rau automotive, aerospace, marine, thiab industrial coatings.
Vim nws cov huab cua tsis zoo, HDI tseem yog ib qho ntawm isocyanates nyiam rau sab nrauv polyurethane daim ntaub ntawv.
Yuav Ua Li Cas Xaiv Txoj Cai Isocyanate
Xaiv qhov tsim nyog isocyanate nyob ntawm daim ntawv thov zaum kawg, cov kev xav tau ntawm kev ua haujlwm, ib puag ncig, thiab kev xav txog tus nqi.
TDI tau xaiv dav rau kev hloov pauv polyurethane ua npuas ncauj thiab dav dav -lub hom phiaj elastomers qhov kev ua tau zoo thiab tus nqi tseem ceeb.
MDI yog qhov kev xaiv zoo tshaj plaws rau cov thermoplastic polyurethane, nruj npuas rwb thaiv tsev, cam khwb cia elastomers, thiab ntau cov khoom lag luam polyurethane vim nws qhov sib npaug zoo ntawm kev ua haujlwm thiab kev ua haujlwm.
Thaum ntev -lub sij hawm UV stability thiab huab cua kuj yuav tsum tau, H12MDI, IPDI, thiab HDI yog feem ntau haum tshaj li aromatic isocyanates. Txawm hais tias cov ntaub ntawv no kim dua, lawv muab cov khoom siv sab nraum zoov zoo dua thiab khaws xim.
Xaiv txoj cai Polyurethane Raw Materials
Xaiv qhov tseeb isocyanate tsuas yog ib feem ntawm kev tsim lub siab -kev ua tau zoo polyurethane. Polyols, chain extenders, catalysts, processing conditions, and curing method all influences the final properties of polyurethane products.
Raws li ib tug kws tshaj lij polyurethane chaw tsim tshuaj paus, peb muab polyurethane prepolymers, polyether polyols, cam khwb cia polyurethane elastomers, thiab customized polyurethane systems rau ntau yam kev lag luam daim ntaub ntawv. Peb pab pawg kws tshaj lij tuaj yeem pom zoo cov khoom siv raw khoom sib xyaw ua ke raws li koj cov khoom xav tau, pab cov neeg siv khoom ua tiav kev ua tiav thiab kev ua haujlwm zoo ib yam.