1. Natural roj hmab NR
Nws yog tsim los ntawm latex sau los ntawm cov ntoo roj hmab thiab belongs rau isoprene polymer. Nws muaj elasticity siab, hnav tsis kam, muaj zog tensile zog thiab muaj zog elongation. Tab sis nws txoj kev laus kuj tsis zoo, lub sij hawm ntev raug rau huab cua yog yooj yim rau hnub nyoog, thiab nws yog ib qho yooj yim los ua nplaum tom qab tshav kub, alkali tsis kam thiab muaj zog acid kuj.
2, styrene butadiene cov pos hniav SBR
Los ntawm lub npe, peb tuaj yeem paub tias nws yog copolymer ntawm butadiene thiab styrene. Piv nrog rau cov roj hmab ntuj, nws qhov kev ntxhib los mos yog ntau dua, thiab muaj tsawg dua txawv teb chaws lub cev sib xyaw rau hauv cov khoom, tab sis cov neeg kho tshuab lub zog tsis zoo. Feem ntau, nws tuaj yeem sib xyaw nrog cov khoom siv roj hmab ntuj los txhim kho kev ua haujlwm ntawm cov khoom.
3. Butyl roj hmab IIR
Cov khoom no yog ua los ntawm isobutene thiab isoprenes polymerization, cov khoom muaj ib tug me me ntawm unsaturated puag rau leej faj siv, vim methyl stereoscopic obstacle molecular zog yog tsawg, yog li nws muaj tsis zoo permeability, zoo dua tiv thaiv tshav ntuj thiab ozone, cawv, ketone, ester thiab lwm yam polar solvents kuj muaj zog, nws qhov kub thiab txias adaptation range kuj tseem loj, Nws tuaj yeem hloov kho rau qhov kub ntawm -54 ~ 110 degree . Txawm li cas los xij, nws tsis haum rau kev siv cov kuab tshuaj xws li roj av, colloidal kerosene thiab aromatic hydrogen.
4. Hydrogenated butadiene gel HNBR
Nws yog cov khoom tsim los ntawm kev tshem tawm ib feem ntawm ob txoj saw hauv cov khoom tom qab hydrogenation. Tom qab hydrogenation, txawm tias qhov kub thiab txias los yog huab cua tsis kam yog ntau dua li cov roj hmab butadiene. Nws cov roj ua haujlwm thiab cov khoom siv roj hmab butadiene zoo sib xws, haum rau qhov kub thiab txias ntawm -25 ~ 150 degree, thiab nws muaj kev tiv thaiv corrosion zoo, tensile tsis kam thiab kua muag tsis kam. Nws tsis haum rau siv nrog cawv, esters, lossis cov tshuaj tsw qab.
5. EPDM
Nws yog tsim los ntawm ethylene thiab propylene cov khoom siv copolymerization, cov khoom siv hluav taws xob tiv thaiv, kev laus ua haujlwm, ozone tsis kam thiab ruaj khov zoo heev, nws muaj kev tiv thaiv zoo rau cawv, ketone, ethylene glycol thiab phospholipids hnyav, nws tsim nyog rau qhov kub thiab txias ntawm { {0}} ~ 150 degree . Txawm li cas los xij, nws tsis haum rau kev siv hauv kev lag luam ua zaub mov, thiab nws tsis haum rau kev siv hauv cov dej sov hauv chav dej.
6. Butyl Eyeglass NBR
Cov khoom yog ua los ntawm acrylonitrile thiab butadiene copolymerization. Lub siab dua cov ntsiab lus ntawm acrylonitrile nyob rau hauv cov khoom, qhov ntau resistant nws yog hydrocarbon roj roj, uas yog ib tug petrochemical roj, tab sis nws tsis kub tsis kam yuav ua phem. Cov khoom siv tau zoo compressibility, abrasion kuj thiab elongation, tab sis nws tsis haum rau siv nyob rau hauv polar solvents.
7, chloroprene kua nplaum CR
Nws yog tsim los ntawm chloroprene monomer polymerization khoom, tom qab kho kho, nws elasticity thiab hnav tsis kam yog zoo dua, thiab tsis ntshai ntawm tshav ntuj ncaj qha, yog li nws muaj zog atmospheric aging kuj, tab sis kuj muaj hluav taws kub, tab sis thaum nws yog ib qho yooj yim rau crystallization. , hardening thiab lwm yam kev mob nyob rau hauv qhov kub thiab txias ib puag ncig.
8. Silicone roj hmab SI
Nws yog tsim los ntawm silica gel lub ntsiab saw txuas nrog silicon (-si-o-si). Cov khoom muaj qhov kub thiab txias tsis kam, oxidation tsis kam thiab rwb thaiv tsev, thiab muaj kev ua haujlwm zoo rau cov kuab tshuaj nruab nrab. Txawm li cas los xij, lub zog tensile ntawm cov khoom siv tsis zoo li cov khoom siv roj hmab zoo tib yam, thiab cov roj kuj tsis zoo.
Kev faib tawm ntawm cov khoom siv O-ring thiab qhov zoo thiab qhov tsis zoo yog thawj zaug qhia rau qhov no, koj tuaj yeem paub tias qhov zoo thiab qhov tsis zoo ntawm cov khoom sib txawv tsis zoo ib yam, thiab cov khoom sib txawv uas tsim los ntawm cov ntawv thov foob yog txawv, Kuv vam tias koj yuav tsum tau ceev faj thaum xaiv.
