Kev Taw Qhia
Hauv kev lag luam niaj hnub no, cov khoom siv roj hmab tau dhau los ua qhov tseem ceeb vim lawv cov khoom tshwj xeeb xws li elasticity, hnav tsis kam, thiab tshuaj lom neeg tsis kam. Ntawm cov no, fluorine roj hmab (FKM) thiab perfluoroether roj hmab (FFKM) sawv tawm ua cov roj hmab ua tau zoo, paub txog lawv cov tshuaj lom neeg zoo tshaj plaws thiab kub tsis kam. Daim ntawv tshuaj xyuas no tshawb nrhiav txog qhov sib txawv, kev siv, tus nqi, cov qauv, thiab cov khoom ntawm FKM thiab FFKM, lub hom phiaj yog muab cov kev nkag siab zoo rau cov neeg koom nrog hauv cov lag luam cuam tshuam.
Qhov Txawv Yooj Yim Ntawm Fluorine Roj Hmab (FKM) Thiab Perfluoroether Roj Hmab (FFKM)
Cov Qauv Tshuaj
Qhov sib txawv tseem ceeb ntawm FKM thiab FFKM yog nyob rau hauv lawv cov qauv tshuaj lom neeg. FKM yog ib qho polymer uas muaj fluorinated ib nrab nrog cov carbon-carbon bonds (CC) hauv nws cov saw hlau tseem ceeb, thaum FFKM yog ib qho polymer uas muaj fluorinated tag nrho nrog cov qauv carbon-oxygen-carbon (COC), txuas nrog cov pa oxygen (O). Qhov sib txawv ntawm cov qauv no ua rau FFKM zoo dua rau cov tshuaj lom neeg thiab kub siab piv rau FKM.
Kev Tiv Thaiv Tshuaj
FFKM txoj saw hlau tseem ceeb, tsis muaj cov pa roj carbon-carbon bonds, muaj kev tiv taus zoo dua rau cov tshuaj lom neeg. Raws li tau piav qhia hauv daim duab nrog, lub zog sib txuas ntawm cov pa roj carbon-hydrogen bonds yog qhov qis tshaj plaws (kwv yees li 335 kJ / mol), uas tuaj yeem ua rau FKM tsis muaj txiaj ntsig zoo hauv cov tshuaj oxidants muaj zog thiab cov kuab tshuaj polar piv rau FFKM. FFKM tiv taus yuav luag txhua yam tshuaj lom neeg paub, suav nrog cov kua qaub muaj zog, cov hauv paus, cov kuab tshuaj organic, thiab cov tshuaj oxidants.
Kev Tiv Thaiv Kub Siab
FFKM kuj tseem zoo heev rau kev tiv taus kub siab. Txawm hais tias FKM qhov kub ua haujlwm tas mus li feem ntau yog li ntawm 200-250 ° C, FFKM tuaj yeem tiv taus kub txog li 260-300 ° C. Qhov kev ruaj khov kub siab no ua rau FFKM tshwj xeeb tshaj yog rau kev siv hauv qhov chaw kub heev.
Cov Ntawv Thov
Fluorine roj hmab (FKM)
FKM siv dav hauv ntau qhov chaw vim nws tiv taus tshuaj lom neeg zoo heev thiab tiv taus kub nruab nrab:
- Kev Lag Luam Tsheb: FKM siv rau hauv kev tsim cov foob, roj foob, O-rings, thiab ntau ntxiv, tshwj xeeb tshaj yog hauv cov cav thiab cov kab ke sib kis.
- Kev Lag Luam Tshuaj: FKM yog siv rau cov foob hauv cov kav dej, cov qhov dej, cov twj tso kua mis, thiab lwm yam khoom siv los tiv thaiv kev xau tshuaj lom neeg.
- Kev Lag Luam Hluav Taws Xob: Nws yog siv rau cov txheej rwb thaiv tsev hauv cov xov hlau thiab cov cables, tshwj xeeb tshaj yog nyob rau hauv qhov kub thiab txias thiab cov tshuaj lom neeg corrosive.
Roj Hmab Perfluoroether (FFKM)
FFKM siv rau hauv cov teb uas xav tau kev tiv taus tshuaj lom neeg thiab kub siab:
- Aerospace: FFKM yog siv rau cov foob hauv dav hlau thiab spacecraft kom nyiaj tau qhov kub thiab txias heev thiab cov chaw muaj tshuaj lom neeg.
- Kev Lag Luam Semiconductor: Nws yog siv rau cov ntsaws ruaj ruaj hauv cov khoom siv tsim khoom semiconductor kom tiv thaiv kev xau roj tshuaj.
- Kev Lag Luam Petrochemical: FFKM yog siv rau cov ntsaws ruaj ruaj hauv cov khoom siv kub thiab siab hauv cov chaw ua roj thiab cov chaw tsim tshuaj.
Nqe thiab Tus Nqi
Tus nqi tsim khoom siab dua ntawm FFKM ua rau tus nqi lag luam siab dua piv rau FKM. Qhov nyuaj ntawm cov khoom siv raw thiab cov txheej txheem tsim khoom ntawm FFKM ua rau nws tus nqi nce siab. Txawm li cas los xij, vim FFKM ua tau zoo heev hauv qhov chaw ib puag ncig hnyav, nws tus nqi siab dua yog qhov tsim nyog rau qee qhov kev siv.
Daim Ntawv thiab Kev Ua Haujlwm
Fluorine roj hmab (FKM)
FKM feem ntau yog muab los ua cov roj hmab khov, cov roj hmab sib xyaw, lossis cov khoom ua tiav lawm. Nws cov txheej txheem ua haujlwm suav nrog kev nias molding, extrusion, thiab kev txhaj tshuaj molding. FKM xav tau cov khoom siv tshwj xeeb thiab cov txheej txheem vim nws qhov kub ua haujlwm siab.
Roj Hmab Perfluoroether (FFKM)
FFKM kuj tseem muab los ua cov roj hmab khov kho, roj hmab sib xyaw, lossis cov khoom ua tiav lawm. Nws qhov kev tiv taus kub siab ua rau muaj qhov kub siab dua thiab cov khoom siv thiab cov txheej txheem nruj dua.
Kev Sib Piv Txog Kev Ua Tau Zoo
Kev Tiv Thaiv Tshuaj
FFKM txoj kev tiv taus tshuaj lom neeg zoo dua li FKM. FFKM tiv taus yuav luag txhua yam tshuaj lom neeg, suav nrog cov kua qaub muaj zog, cov hauv paus, cov kuab tshuaj organic, thiab cov tshuaj oxidants. Txawm hais tias FKM kuj muaj kev tiv taus tshuaj lom neeg zoo, nws tsis zoo rau qee cov tshuaj oxidants muaj zog thiab cov kuab tshuaj polar piv rau FFKM.
Kev Tiv Thaiv Kub Siab
FFKM qhov kev tiv taus kub siab zoo dua FKM. FKM qhov kub ua haujlwm tas mus li feem ntau yog 200-250 ° C, thaum FFKM tuaj yeem ncav cuag 260-300 ° C. Qhov kev ruaj khov kub siab no ua rau FFKM siv tau dav dua hauv cov chaw ib puag ncig hnyav.
Kev Ua Haujlwm Txog Tshuab
Ob leeg FKM thiab FFKM muaj cov khoom siv kho tshuab zoo heev, suav nrog kev ywj pheej siab, kev tiv taus hnav, thiab kev tiv taus kua muag. Txawm li cas los xij, FFKM cov khoom siv kho tshuab ruaj khov dua ntawm qhov kub siab, ua rau nws txhim khu kev qha dua hauv kev siv qhov kub siab.
Kev Lag Luam Yav Tom Ntej
Nrog rau kev nce qib ntawm thev naus laus zis kev lag luam, qhov kev thov rau cov khoom siv roj hmab ua tau zoo siab nce ntxiv. FKM thiab FFKM muaj kev cia siab dav dav hauv ntau qhov chaw vim lawv qhov kev ua tau zoo heev:
- Kev Lag Luam Tsheb: Kev tsim cov tsheb fais fab tshiab ua rau muaj kev thov ntau ntxiv rau cov foob uas tiv taus kub thiab tiv taus xeb, ua rau kev siv FKM thiab FFKM nthuav dav ntxiv.
- Kev Lag Luam Tshuaj: Kev sib txawv thiab kev nyuaj ntawm cov khoom siv tshuaj lom neeg ua rau muaj kev thov rau cov foob tiv taus tshuaj lom neeg, ua rau kev siv FKM thiab FFKM nthuav dav ntxiv.
- Kev Lag Luam Hluav Taws Xob: Qhov kev ua kom me me thiab kev ua tau zoo ntawm cov khoom siv hluav taws xob ua rau muaj kev xav tau cov ntaub ntawv rwb thaiv tsev uas tiv taus qhov kub siab thiab kev xeb tshuaj lom neeg, ua rau kev siv FKM thiab FFKM nthuav dav ntxiv.
Xaus lus
Cov roj hmab fluorine (FKM) thiab cov roj hmab perfluoroether (FFKM), ua cov roj hmab ua tau zoo, muaj kev cia siab dav hauv ntau qhov chaw vim lawv tiv taus tshuaj lom neeg zoo heev thiab tiv taus kub siab. Txawm hais tias FFKM kim heev, nws qhov kev ua tau zoo hauv qhov chaw ib puag ncig hnyav ua rau nws muaj qhov zoo dua hauv qee qhov kev siv. Nrog rau kev nce qib tas mus li ntawm kev siv tshuab kev lag luam, qhov kev thov rau cov khoom siv roj hmab ua tau zoo yuav nce ntxiv, thiab kev cia siab ua lag luam rau FKM thiab FFKM yog dav.
Lub sijhawm tshaj tawm: Lub Rau Hli-24-2025