Cov yam ntxwv tseem ceeb ntawm fluorosilicon roj hmab
1, roj tsis kam, hnyav tsis kam, tshuaj tsis haum
Piv nrog methyl vinyl silicone roj hmab, fluorine silicone roj hmab muaj cov roj zoo heev, hnyav tsis kam thiab tshuaj lom neeg. Txawm tias piv nrog fluorine roj hmab, roj kuj thiab hnyav kuj zoo. Nyob rau hauv tib qhov nruab nrab, qhov kub thiab txias, lub sij hawm tom qab dipping pom zoo heev durability, nws yuav hais tau tias fluorosilicone roj hmab yog ib tug elastic lub cev resistant rau non-polar media ntawm -68 degree ~ 232 degree.
Qhov kev tiv thaiv ntawm fluorine silicone roj hmab rau methanol uas muaj roj av kuj kuj zoo, txawm nyob rau hauv cov roj av / methanol (85vol feem pua / 15vol feem pua) sib xyaw system, hardness, tensile zog, ntim hloov ntawm cov roj hmab vulcanized yog me me, tom qab 500h ntev impregnation xeem, lub cev muaj zog yuav luag tsis muaj kev hloov.
2. Thaum tshav kub kub tsis kam
Qhov kub-kub decomposition ntawm fluorine silicone roj hmab yog tib yam li cov roj hmab silicone, uas yog, sab saw oxidation, lub ntsiab saw tawg, sab saw thermal decomposition thiab ua rau muaj ntau yam kev sib txuam. Txij li cov khoom decomposition tseem tuaj yeem ua rau cov saw tseem ceeb tawg, qhov kub tsis kam yog feem ntau phem dua li cov roj hmab silicone, thiab oxidation aging tau pib ntawm qhov kub ntawm 200 ° C. Txawm li cas los xij, los ntawm kev ntxiv me me ntawm cov cua sov stabilizer xws li hlau, titanium, tsis tshua muaj lub ntiaj teb oxides, nws tuaj yeem txhim kho tau zoo, thiab nws muaj cov cua sov txaus txawm tias qhov kub ntawm 25 degrees.
Cov nyhuv ntawm qhov kub ntawm fluorosilicone roj hmab yog loj dua li ntawm silicone roj hmab, tab sis me dua li ntawm fluororubber. Lub neej kev pab cuam ntawm fluorine silicone roj hmab ntawm 150 degree × 2000h, 175 degree × 5000h, 200 degree × 4000h tau kawm txawv teb chaws, thiab qhov tshwm sim yog thib ob tsuas yog methyl vinyl silicone roj hmab.
3. Kev ua haujlwm txias
fluorine silicone roj hmab thiab zoo tib yam silicone roj hmab, tsis tshua muaj kub kev ua tau zoo. Vim hais tias fluorine silicone roj hmab yog ib tug linear polymer tsim los ntawm mos Si-O lub ntsiab saw, cov yam ntxwv tsis kub yog zoo dua fluorine roj hmab nrog CC lub ntsiab saw. Ntawm lawv, fluorine silicone roj hmab (LS-2370U) muaj cov yam ntxwv ntawm qhov kub thiab txias zoo dua, thiab qhov kub thiab txias yog qis li -89 degree C, thaum cov roj fluorine dav dav txog -30 degree C.
4, hluav taws xob kev ua tau zoo, hluav taws xob tsis kam
Cov khoom siv hluav taws xob ntawm cov roj hmab fluorosilicone zoo ib yam li cov roj hmab silicone zoo tib yam, tab sis qhov tshwj xeeb yog qhov kev hloov pauv hauv cov xwm txheej hnyav xws li kub, tsis kub, av noo, roj, cov kuab tshuaj, tshuaj lom neeg, thiab ozone tsawg heev.
Cov hluav taws xob tiv thaiv ntawm fluorosilicone roj hmab tsis zoo, tab sis cov hluav taws xob tiv thaiv kev laus yog zoo dua li ntawm methyl vinyl silicone roj hmab.
5. Lub cev thiab txhua yam khoom
Zoo li cov roj hmab silicone zoo tib yam, lub zog txhua yam (tshwj xeeb tshaj yog lub zog tearing) ntawm cov roj hmab vulcanized kuj tsawg. Yog li ntawd, kev txhim kho thiab ua kom lub zog ntawm fluorosilicone roj hmab kuj yog ib lub ntsiab lus tseem ceeb ntawm kev tshawb fawb.
6. Lwm yam nta
Cov huab cua tsis kam ntawm fluorosilicone roj hmab yog qhov zoo heev, thiab txawm tias tom qab 5 xyoos ntawm kev raug mob, nws tseem ua haujlwm zoo. Ozone yog ib qho ntawm feem ntau tsim gases thaum lub sij hawm laus ntawm elastomers, tab sis tsis muaj cracking los yog tawg tshwm sim nyob rau hauv fluorosilicone roj hmab tom qab dynamic los yog static tests.
Tsis tas li ntawd, fluorine silicone roj hmab mildew kuj, physiological inertia, anticoagulation kuj zoo heev.
Daim ntawv thov teb ntawm fluorosilicon roj hmab
Fluorosilicone roj hmab yog cov khoom siv elastomer nrog cov yam ntxwv ntawm ob qho tib si silicone roj hmab thiab fluororubber. Piv nrog methyl vinyl silicone roj hmab, qhov zoo tshaj plaws yog cov roj tsis kam thiab hnyav hnyav; Piv nrog cov roj hmab fluorine, txawm hais tias muaj qhov sib txawv me ntsis ntawm qhov tsis kam rau cov kuab tshuaj alkane, qhov ua rau cov kuab tshuaj tsw qab zoo dua li cov roj hmab fluorine, thiab nws cov kuab tshuaj zoo tsuas yog cov ketones nrog cov polarity loj thiab cov molecules me. Fluorosilicone roj hmab muaj cov cua kub zoo dua, tiv thaiv txias thiab compression deformation, thiab cov khoom siv lub cev tsis tshua muaj nyob ntawm qhov kub thiab txias, los ntawm qis mus rau qhov kub siab, nws qhia tau hais tias kev ua tau zoo heev. Qhov thib ob, txawm tias tsis muaj kev siv cov yas yas, cov khoom tsis muaj zog tuaj yeem ua tau. Yog li ntawd, fluorine silicone roj hmab yog ib qho kev ua tau zoo tshiab elastomer khoom siv dav siv.
Fluorosilicone roj hmab yog tsuas yog siv nyob rau hauv aerospace, tsheb thiab nkoj, hluav taws xob kev sib txuas lus, precision instruments, petrochemical thiab kev kho mob thiab kev noj qab haus huv teb, tab sis tam sim no kev lag luam xav tau loj tshaj plaws los yog foob pob ua ntxaij, satellite, tsheb, aircraft tsim kev lag luam.
Aviation zaj duab xis: diaphragm rau lub valve nyob rau hauv lub siab regulating pipeline ntawm cov roj tank, diaphragm rau lub valve ntawm lub roj tank qhov cua (nyob rau hauv lub -55 degree ~ 200 degree kerosene chav thiab 150 degree RP kerosene nrog fluorine silicone roj hmab txheej thiab polyester ntaub raws li lub cev nqaij daim tawv cov ntaub ntawv cov ntaub ntawv); Static thiab dynamic seals: gasket, khob, valve
Automotive khoom: roj theem taw qhia sensor hose, atomizer twj diaphragm, roj twj tso kua mis diaphragm, corrugated sheath, cav crankshaft rear foob, lub tog raj kheej gasket, roj twj tso kua mis foob, roj tank hau gasket, roj lim foob;
Lwm yam: tsis kam mus rau fluorine chlorine roj, fluorine bromine roj, tsis kam rau trichlorobenzene, tsis kam mus rau H2S tov, tsis kam ua kua nitrogen seals.
