Fluoroelastomers , inozivikanwawo seFKM, imhando yerabha yekugadzira ine kuchembera kwemamiriro ekunze uye ozone kuramba zvivakwa. Aya akasiyana maitiro anovaita kuti vanyatsokodzera zvikumbiro mukufamba kwemuchadenga, uko kuratidzwa kune yakaoma mamiriro ezvakatipoteredza kusingadzivisike.
Chinhu chekutanga chekufunga nezve mamiriro ekunze ekuchembera kuramba kwefluoroelastomers. Zvishandiso izvi zvinozivikanwa nekugona kwavo kutsungirira kuratidzwa kwenguva refu kune tembiricha yakanyanyisa, mwaranzi yeUV, uye zvimwe zvinhu zvemamiriro ekunze. Kusiyana nechinyakare elastomers, fluoroelastomers anoratidza kushomeka kuderera uye anochengeta zvimiro zvavo zvemuviri kunyangwe mushure mekuratidzwa kwenguva refu kune yakaoma mamiriro ekunze. Izvi zvinoita kuti zvive zvakanaka kuti zvishandiswe mukufamba kwemuchadenga, uko ndege nezvitundumuseremusere zviri pasi pekuchinjika kwakanyanya kwekushisa uye kugara uchisangana nechiedza chezuva.
Chimwe chinhu chakakosha chefluoroelastomers kuramba kwavo ozone. Ozone, chimiro cheokisijeni chinoshanda zvakanyanya chinowanikwa mumhepo yePasi, inogona kukonzera kukanganisa kukuru kwezvinhu zvakawanda. Nekudaro, fluoroelastomers yakaratidza kupikisa kunoshamisa kuparara kweozone. Uku kusimba kunovimbisa hupenyu hurefu uye kuvimbika kwezvikamu zvakagadzirwa kubva kufluoroelastomers mune aerospace navigation system, uko kuratidzwa kune-ozone-inopfuma nharaunda kwakajairika.
Nekuchembera kwavo kwakasarudzika kwemamiriro ekunze uye neozone kuramba, mafluoroelastomers ave akakosha muindasitiri yekufamba nendege. Ivo vanowana maapplication muakasiyana akakosha zvikamu, zvinosanganisira zvisimbiso, gaskets, O-mhete, uye zvimwe zvekuisa chisimbiso. Kugona kwefluoroelastomers kuchengetedza kuita kwavo uye kutendeseka mumamiriro ezvinhu akaoma kwakakosha pakuona kuchengetedzwa uye kushanda zvakanaka kweaerospace navigation system.
Muchikamu chino, tichaongorora zvakadzama mamiriro ekunze ekuchembera kuramba uye ozone kuramba zvimiro zve fluoroelastomers. Pamusoro pezvo, isu tichaongorora mashandisirwo akasiyana eizvi zvinoshamisa zvinhu mukufamba kwemuchadenga. Nekunzwisisa yakasarudzika hunhu hwefluoroelastomers, vagadziri uye mainjiniya vanogona kuita sarudzo dzine ruzivo maererano nekusarudzwa kwezvinhu zveaerospace navigation system, pakupedzisira vachiwedzera mashandiro avo uye kuvimbika.
Mamiriro ekunze Kuchembera Kuramba muFluoroelastomers
Fluoroelastomers imhando yerabha yekugadzira inoratidza kuramba kuchembera kwemamiriro ekunze. Ichi chakasarudzika chivakwa chinoita kuti vanyatso kukodzera kune akasiyana maapplication mumaindasitiri akadai semotokari, aerospace, uye makemikari kugadzirisa. Kuchembera kwemamiriro ekunze kunoreva kuparara kwezvinhu nekuda kwekusangana nemamiriro ekunze akaomarara, anosanganisira chiedza chezuva, kupisa, ozone, uye makemikari. Panyaya yefluoroelastomers, chimiro chavo chemolecular uye kuumbwa kwavo kunobatsira mukupokana kwavo kune izvi zvinhu.
Chimwe chezvinhu zvakakosha zvinoita kuti mafluoroelastomers akwanise kumira kuchembera kwemamiriro ekunze ndeyekukwira kwefluorine. Iyi yakakwira fluorine yemukati haingowedzere kuramba kwayo kupisa uye makemikari asiwo inopa yakanakisa kupikisa ultraviolet (UV) mwaranzi kubva kuchiedza chezuva. Mwaranzi yeUV inogona kukonzera kuderedzwa uye kuputika kwemapolymers nekufamba kwenguva, zvichikonzera kudzikiswa kwekuita uye hupenyu hwehupenyu. Nekudaro, mafluoroelastomers 'anopokana nekupokana nemwaranzi yeUV inovimbisa hupenyu hwavo hurefu kunyangwe painenge ichiratidzwa kune yakaoma kwazvo mamiriro ekunze.
Pamusoro peiyo yakakwira fluorine zvemukati, fluoroelastomers zvakare ine yakasarudzika kabhoni-fluorine musana. Uyu musana unobatsira mukupokana kwavo kwemakemikari, zvichiita kuti dzisanyanya kuderedzwa nemaasidhi, mabhesi, zvinonyungudutsa, uye mafuta. Uku kupikisa kurwiswa kwemakemikari kunowedzera kugona kwavo kutsungirira kuchembera kwemamiriro ekunze, sezvo kuratidzwa kune zvakasiyana-siyana zvinosvibisa zvakatipoteredza uye zvinosvibisa zvinogona kukurumidzira kuparara kwezvinhu.
Uyezve, mafluoroelastomers anoratidza kugadzikana kwakanyanya kwemafuta, zvichivabvumira kuchengetedza zvivakwa zvavo zvemuchina pane yakafara tembiricha. Vanogona kumira kupisa kwakanyanya pasina kurasikirwa nekusimba kwavo kana kuita brittle. Uku kugadzikana kwekupisa kwakakosha mumashandisirwo ayo mafluoroelastomers anoratidzirwa kune tembiricha yakanyanya kana kushanduka kwetembiricha, senge injini seals, gaskets, uye O-mhete.
Kuve nechokwadi chekushanda kwakakwana kwefluoroelastomers mumamiriro ekunze ekukwegura, kuumbwa kwakakodzera uye kusanganiswa kwakakosha. Vagadziri vanonyatso sarudza uye kusanganisa zvinhu zvakasiyana kuti vagadzire fluoroelastomers ane chaiwo zvimiro uye maitiro ekuita. Iyo yekusanganisa maitiro inosanganisira kusanganisa iyo fluoroelastomer nezvimwe zvakasiyana-siyana zvekuwedzera, senge kurapa maajenti, accelerators, uye mafirita, kusimudzira ma mechanic zvimiro, processability, uye kuramba kuchembera kwemamiriro ekunze.
Ozone Resistance muFluoroelastomers
Ozone kuramba mune fluoroelastomers chinhu chakakosha kufunga nezve pakusarudza zvinhu zveakasiyana maindasitiri ekushandisa. Fluoroelastomers, inozivikanwawo seFKM kana FPM, zvinhu zverabha zvekugadzira zvinoratidzira kupikisa kwakasarudzika kushatisa ozone. Ozone, chimiro cheokisijeni chinoshanda zvakanyanya, chinogona kukonzera kukuvadzwa kukuru kwezvinhu, zvichikonzera kuderedzwa kwekuita uye hupenyu. Nekudaro, mafluoroelastomers akagadzirwa chaizvo kuti amirire hutsinye hwekuratidzwa kweozone.
Iyo yakasarudzika molecular chimiro chefluoroelastomers inoita basa rakakosha mukupokana kwavo ozone. Zvinhu izvi zvinoumbwa nemusana wakagadzirwa nekabhoni uye maatomu efluorine. Kuvapo kwemaatomu efluorine kunopa yakanakisa chipingamupinyi chinopesana nekupinda kweozone, kudzivirira izvo zvinhu kubva mukuora. Pamusoro pezvo, mafluoroelastomers ane kupikisa kwakanyanya kune zvimwe zvakatipoteredza zvakaita sekupisa, makemikari, uye tembiricha yakanyanyisa, zvichiita kuti zvive zvakasiyana-siyana mukushandisa kwakasiyana-siyana kunoda.
Imwe yemabhenefiti akakosha efluoroelastomers maererano nekupokana kweozone kugona kwavo kuchengetedza michina yavo kunyangwe mushure mekuratidzwa kwenguva refu kune ozone. Kusiyana nemamwe ma elastomers, fluoroelastomers haaomese zvakanyanya kana kutsemuka kana akafumurwa kune ozone, kuve nechokwadi chekuvimbika uye kushanda kwechinhu. Izvi zvakanyanya kukosha mumaindasitiri uko midziyo uye zvikamu zvinoratidzwa kune-ozone-yakapfuma nharaunda, senge mota, aerospace, uye oiri uye gasi maindasitiri.
Uyezve, iyo yakasarudzika ozone kuramba kwefluoroelastomers inobatsira kuhupenyu hwavo hwesevhisi. Nekumira nekukuvadza kweozone, zvinhu izvi zvinogona kuchengetedza maitiro azvo kwenguva yakareba, zvichideredza kudiwa kwekugara kuchitsiviwa. Izvi hazvingochengetedze mari chete asiwo zvinoderedza nguva yekudzikira uye inovimbisa kuenderera mberi kwekushanda kweakakosha masisitimu.
Kuti ive nechokwadi chekupokana kwe ozone, zvakakosha kuti usarudze iyo chaiyo fluoroelastomer compound kune yega yega application. Zvinhu zvakadai setembiricha, kuratidzwa kwekemikari, uye kushushikana kwemagetsi zvinofanirwa kutariswa pakusarudza chinhu chakakodzera. Pamusoro pezvo, dhizaini chaiyo uye maitirwo einjiniya, anosanganisira chisimbiso chakakwana uye chisimbiso system optimization, inoita basa rakakosha mukukwidziridza kuita uye hupenyu hwezvinhu zvefluoroelastomer.
Zvishandiso zveFluoroelastomers muAerospace Navigation
MaFluoroelastomers akabuda sechinhu chakakosha muindasitiri yekufamba nendege, achishandura nzira iyo ndege dzinofamba mumatenga. Izvi zvepamberi zvinhu zvinopa kupikisa kwakasarudzika kune tembiricha yakanyanyisa, makemikari, uye mafuta, zvichiita kuti zvive zvakanakira kuwanda kwekushandisa mundima iyi inoda.
Imwe yemashandisirwo ekutanga efluoroelastomers mukufamba kwemuchadenga ndeyekugadzira zvisimbiso uye gaskets. Izvi zvikamu zvinotora basa rakakosha mukuona kutendeseka kweakasiyana masisitimu, senge mitsara yemafuta, hydraulic masisitimu, uye makamuri einjini. Fluoroelastomers, nekupikisa kwavo kwakasarudzika kumafuta nemakemikari, inopa chipingamupinyi chakavimbika kubva pakudonha nekuora, inosimudzira kuchengetedzeka kwese uye kuita kwendege.
Kumwe kushandiswa kwakakosha kwefluoroelastomers kuri mumagetsi ekubatanidza uye wiring system. Aerospace navigation inotsamira zvakanyanya pane yakaoma magetsi masisitimu ekutaurirana, kufamba, uye chiridzwa. Fluoroelastomers, neayo akanakisa emagetsi ekudzivirira zvivakwa, inodzivirira mapfupi maseketi uye inovimbisa kutapurirana kwakavimbika kwemasaini, kunyangwe pasi pemamiriro akaomarara. Izvi hazvisi kungowedzera kushanda kwemaitiro ekufambisa asiwo kuderedza njodzi yekukundikana kwemagetsi.
Uyezve, fluoroelastomers inowana kushandiswa kwakanyanya mukugadzirwa kweO-mhete uye zvisimbiso zve hydraulic systems. Aya masisitimu akakosha pakudzora kufamba kwezvinhu zvakasiyana siyana zvendege, senge giya rekumhara, maflaps, uye nzvimbo dzekudzora. Iyo yakasarudzika yemakemikari kuramba yefluoroelastomers inovimbisa chisimbiso chakasimba uye chakasimba, kudzivirira chero kubuda kwemvura yehydraulic. Izvi zvinobatsira pakuvimbika kwese uye kuchengetedzwa kwendege panguva yekufamba.
Pamusoro pezvivakwa zvavo zvinoshanda, fluoroelastomers inopawo zvakakosha zvakakosha maererano nekuderedza uremu. Aerospace navigation inosimbisa kukosha kwezvinhu zvireruke zvekusimudzira kushanda kwemafuta uye kuderedza kuburitswa. Fluoroelastomers, ine simba-kusvika-uremu reshiyo, inopa mhinduro isina kuremerwa pasina kukanganisa kuita. Izvi hazvingobatsiri chete mukudzikisa huremu hwese hwendege asiwo zvinobatsira mukuvandudza maneuverability uye kuwedzera mubhadharo wemubhadharo.
Mhedziso
Fluoroelastomers inopikisa zvakanyanya kuchembera kwemamiriro ekunze, zvichiita kuti ive sarudzo inosarudzika mumashandisirwo anoratidzwa nechiedza chezuva, kupisa, ozone, uye makemikari. Yavo yakakwira fluorine yemukati, yakasarudzika mamorekuru chimiro, makemikari kuramba, uye kugadzikana kwekupisa kunoita kuti vararame kwenguva refu uye kuvimbika. Maindasitiri anogona kubatsirwa nekunzwisisa zvivakwa izvi uye kusarudza mafluoroelastomers emamiriro ekunze anodzivirira kuchembera maapplication. Pamusoro pezvo, fluoroelastomers inopa yakasarudzika ozone kuramba, ichiita kuti ive yakanakira maindasitiri ane hanya nekuratidzwa kweozone. Nekusarudza iyo chaiyo fluoroelastomer musanganiswa uye kuita kwayo dhizaini maitiro, maindasitiri anogona kutora mukana weiyo yepamusoro ozone kuramba inopihwa nezvinhu izvi. Fluoroelastomers yakakoshawo muindasitiri yekufamba nendege, ichipa kupokana nemamiriro akanyanya uye nekuona kuchengetedzwa, kushanda zvakanaka, uye kuita kwendege. Zvinhu izvi zvinoshandiswa muzvisimbiso, gaskets, magetsi ekubatanidza, uye hydraulic system, kutyaira hunyanzvi uye kuita kuti kufamba kwemhepo kuve kwakachengeteka uye kwakavimbika.
