Raws li lub tshuab fais fab tuag, cov technologies siv los ntawm lub ntiaj teb kev txuag cov khoom siv roj hmab tsim tau faib ua tsib lub hauv paus loj: nickel, cobalt, lithium, titanium, thiab tsawg lub ntiaj teb (neodymium) .Titanium, nickel thiab cobalt system yog cov hauv av Kev sib tw, kev sib tw tsis tshua zoo heev, lithium yog butadiene roj hmab tsuas yog siv rau kev tsim, feem cuam tshuam rau cov nickel butadiene yog peb lub teb chaws nyob rau xyoo 1960 qhov kev vam meej nickel zoo heev, feem pua ntawm 1965 hauv jinzhou, lanzhou , pib tsim kev lag luam, butadiene rubber kev lag luam ntawm cov tshiab kev lag luam hauv xyoo 1985, tshwj xeeb chav kawm ntawv qib siab ntawm lub teb chaws kev kawm thiab kev ua haujlwm, tom qab ib nrab xyoo ntawm ob peb tiam neeg ua haujlwm, Tuam Tshoj tus qauv siv tshuab nickel thiab nickel butadiene khoom zoo hauv lub ntiaj teb qib siab .
Cov yam ntxwv ntawm nickel catalytic system:
1. Nickel catalytic system yog qhov sib npaug zos ntau. Cov kab ntau npaum li cas, kev noj hom thiab laus hom catalysts tsis tsuas cuam tshuam rau cov kev ua ntawm catalytic system, tab sis kuj cuam tshuam rau qhov nyhav molecular ntawm lub polymer.
2, nickel catalyst system stability, polymerization kub, kom hloov mus rau ntau yam, cov tshuaj tiv thaiv kub saum 120 ℃, lub cev tseem tsis inactivation, muaj kub kuj tsis haum.
3. Cov nickel catalytic system muaj zoo directivity thiab tsawg dua cuam tshuam los ntawm tus nqi ntawm catalyst thiab cov concentration ntawm monomer.
4. Cov nickel catalyzed system ua rau ntau cov saw hloov ntawm butadiene thaum lub caij cov txheej txheem polymerization, uas ua rau txoj kev kaw.
Polymerization cov yam ntxwv ntawm lub ntiaj teb tsis muaj zog catalytic system:
1. Roj hydrocarbon cov tshuaj hob hos yog siv los ua qhov hnyav, uas zoo rau kev tiv thaiv ib puag ncig;
2. Tus nqi siab nyiaj siab dua monomer, txawm tias nce mus txog 100%;
3. Nws tsis yog yooj yim los tsim kev sib tawm tsam kev sib tw thiab tsim kom muaj cov gel.