(1) Cov roj hmab fluorine: Nws muaj qhov kub thiab txias tsis kam, tuaj yeem siv hauv qhov chaw ib puag ncig -30 + -5050 ℃, tiv taus kom muaj zog oxidants, roj, kua qaub thiab alkalis. Feem ntau siv rau hauv qhov kub thiab txias, lub tshuab nqus tsev siab thiab qhov chaw siab siab, haum rau cov roj ib puag ncig. Vim nws cov khoom zoo heev, fluorine roj hmab tau siv dav hauv roj av, tshuaj lom neeg, aviation, aerospace thiab lwm yam.
(2) Cov roj hmab Silicone: Nws muaj qhov ua tau zoo thiab qhov kub tsis kam tiv thaiv, ua kom zoo rau qhov kub thiab txias ntawm -70 ℃ -+60 ℃, thiab muaj qhov zoo ntawm kev ua haujlwm rau ozone thiab huab cua. Nws yog qhov tsim nyog rau kev sib khi hauv thermomechanics. lub hnab kaw qhov ncauj. Vim tias nws tsis muaj tshuaj lom, nws tuaj yeem siv ua cov rwb thaiv tsev thaum tshav kub kub, rwb thaiv tsev cov khoom lag luam thiab cov khoom siv roj hmab kho mob.
3. Nitrile roj hmab: Nws muaj cov roj zoo thiab cov kuab tshuaj tsw qab, tab sis nws tsis tiv taus cov xov xwm xws li ketones, esters thiab chlorinated warp. Yog li, cov khoom siv roj-resistant kev lag luam tsuas yog siv cov roj hmab nitrile.
4. Chloroprene roj hmab: Nws muaj cov roj ua tau zoo, hnyav tiv thaiv, tshuaj lom neeg tshuaj lom neeg thiab lwm yam khoom, tab sis nws tsis tiv taus cov roj muaj ntxhiab. Nws yog tus cwj pwm los ntawm kev tsis kam tiv taus huab cua kev laus thiab huab cua kev laus. Hauv kev tsim khoom, neoprene feem ntau yog siv los ua qhov rooj thiab qhov rai sealing txoj hlua khi thiab cov ntawv sib nqus thiab cov khoom nqus nqus khoom nqus;
5. EPDM: Nws muaj qhov kub zoo tsis kam, huab cua kev laus tiv thaiv thiab ozone kev laus ua haujlwm. Feem ntau, nws yog qhov feem ntau siv dav hauv qhov rooj thiab qhov rai ntim khi thiab qhov chaw kho tsheb.
