1. Nitrile roj hmab (NBR) yog ib qho tsis tu ncua copolymer synthesized los ntawm emulsion polymerization ntawm butadiene thiab acrylonitrile monomers. Nws cov kev laus tsis kam, kub tsis kam thiab hnav tsis kam yog zoo dua li cov roj hmab ntuj. Nitrile roj hmab feem ntau yog siv los tsim cov khoom siv roj hmab uas ua haujlwm hauv roj av hydraulic roj, lubricating roj, kerosene thiab roj av.
2. Silicone roj hmab (Si los yog VMQ) yog linear polymer nrog silicon-oxygen bond unit (-si-o-si) raws li cov saw tseem ceeb thiab ib pawg organic raws li pawg sab
Thaum tshav kub kub-resistant kev ua tau zoo Silicone muaj zoo kub-kub stability
Muaj zog aging kuj
Cov nplaim hluav taws zoo ua haujlwm zoo
Zoo roj kuj thiab tshuaj lom neeg nruab nrab kuj
3. Fluorine roj hmab (FKM los yog Vtion), tseem hu ua fluorine elastomer, yog ib tug siab molecular polymer uas muaj fluorine atoms ntawm lub ntsiab saw thiab sab saw carbon atoms.
Fluorine roj hmab muaj cov cua kub zoo heev, ozone kuj thiab ntau yam roj hydraulic
4. Ethylene propylene diene monomer (EPDM) yog terpolymer ntawm ethylene, propylene thiab ib qho me me ntawm non-conjugated diene olefins.
EPDM muaj ozone kuj zoo heev thiab zoo corrosion kuj. Lub ntuj xim ntawm EPDM yog beige thiab muaj elasticity zoo heev.
5. Polytetrafluoroethylene (PTFE)
Nws yog ib qho polymer compound ua los ntawm polymerizing tetrafluoroethylene. Nws muaj cov tshuaj lom neeg ruaj khov zoo heev, tiv thaiv corrosion, sealing, siab lubricity thiab tsis-stickiness, hluav taws xob rwb thaiv tsev, zoo tiv thaiv kev laus, thiab kub tsis kam.
