Hydrogenated nitrile roj hmab (HNBR los yog HSN) yog cov khoom ntawm hydrogenation thiab saturation ntawm carbon-carbon ob daim ntawv cog lus nyob rau hauv lub molecular saw ntawm nitrile roj hmab, yog li nws kuj hu ua heev saturated nitrile roj hmab.

Fluoroelastomer yog ib qho hluavtaws polymer elastomer uas muaj fluorine atoms ntawm cov pa roj carbon atoms ntawm cov saw tseem ceeb lossis sab saw. Kev taw qhia ntawm fluorine atoms muab roj hmab zoo heev thaum tshav kub kub, oxidation tsis kam, roj kuj, corrosion kuj thiab atmospheric aging kuj, thiab yog dav siv nyob rau hauv aerospace, aviation, automotive, roj av thiab cov khoom siv hauv tsev.

Ethylene propylene roj hmab yog cov roj hmab hluavtaws nrog ethylene thiab propylene ua lub ntsiab monomer, raws li qhov sib txawv ntawm cov monomer nyob rau hauv cov saw molecular, muaj binary ethylene propylene roj hmab (EPM) thiab tertiary ethylene propylene roj hmab (EPDM), Nws yog dav siv nyob rau hauv cov khoom siv tsheb, cov khoom siv hluav taws xob, thiab cov khoom siv hluav taws xob. automotive seals, lubricant additives thiab lwm yam khoom.

Zinc oxide yog ib yam khoom tsis muaj zog nrog cov tshuaj formula ZnO, ib qho oxide ntawm zinc. Nws yog insoluble hauv dej thiab soluble hauv acids thiab muaj zog hauv paus. Zinc oxide yog ib qho tshuaj ntxiv thiab siv dav hauv cov roj hmab hluavtaws.