Irabha yokwenziwa yenye yezinto ezintathu ezinkulu zokwenziwa kwaye isetyenziswa kakhulu kwiinkalo ezahlukeneyo zoshishino, ukhuselo lwelizwe, ezothutho kunye nobomi bemihla ngemihla.Irabha eyenziweyo ekumgangatho ophezulu kunye nesebenzayo yeyona nto iphambili esisiseko eyimfuneko kuphuhliso lwexesha elitsha, kwaye ikwasisixhobo esibalulekileyo sobutyebi belizwe.
Izixhobo zerabha ezikhethekileyo zokwenziwa zibhekisa kwizinto zerabha ezingafaniyo nezixhobo zerabha ngokubanzi kwaye zineempawu ezikhethekileyo ezifana nokuxhathisa ubushushu obuphezulu kunye nobuphantsi, ukumelana nokwaluphala, ukuxhathisa ukukhupha, kunye nokumelana neekhemikhali, ngakumbi irabha ye-nitrile eyi-hydrogenated (HNBR), i-thermoplastic vulcanizate (TPV) , I-rubber ye-silicone, i-rubber ye-fluorine, i-rubber ye-fluorosilicone, i-rubber acrylate, njl. Ngenxa yeempawu zayo ezikhethekileyo, izinto ezikhethekileyo zerabha ziye zaba zizinto eziphambili eziyimfuneko ekuphuhlisweni kwezicwangciso eziphambili zelizwe kunye nemimandla ekhulayo efana ne-aerospace, ukukhusela ilizwe kunye noshishino lwezempi, ulwazi lwe-elektroniki, amandla, okusingqongileyo, kunye nolwandle.
1. Irabha yenitrile ene-Hydrogenated (HNBR)
Irabha ye-nitrile ene-Hydrogenated yirubha egcwele kakhulu efunyenwe ngokukhetha i-hydrogenating iiyunithi ze-butadiene kwitsheyini yerabha ye-nitrile ngenjongo yokuphucula ukumelana nobushushu kunye nokumelana nokuguga kwerabha ye-nitrile butadiene (NBR)., eyona nto iphambili kuyo kukuba ingasetyenziselwa ixesha elide kwi-150 ℃, kwaye isenokugcina iimpawu eziphezulu zomzimba kunye nezomatshini kubushushu obuphezulu, ezinokuhlangabezana neemfuno ezikhethekileyo zokumelana nobushushu obuphezulu kunye nokuxhathisa imichiza kwimoto. , i-aerospace, intsimi yeoli kunye nezinye iindawo.Iimfuno, ngakumbi nangakumbi ezisetyenziswa ngokubanzi, ezifana nezitywina zeoyile yemoto, izixhobo zenkqubo yepetroli, amabhanti okuhambisa iimoto, iibhokisi zokubamba iibhokisi kunye neepiston zodaka, ukushicilela kunye neerola zerabha ezilukiweyo, izitywina ze-aerospace, izixhobo zokufunxa ukothuka, njl.
2. I-Thermoplastic Vulcanisate (TPV)
I-Thermoplastic vulcanizates, efinyeziweyo njenge-TPVs, yiklasi ekhethekileyo ye-thermoplastic elastomers eveliswa "yi-dynamic vulcanization" ye-immiscible blends of thermoplastics kunye ne-elastomers, oko kukuthi ukukhethwa kwesigaba se-elastomer ngexesha lokunyibilika ukuxuba kunye ne-thermoplastic cross-linking ye-Sexual cross-linking.I-vulcanization ngexesha elinye lesigaba serabha kubukho be-agent enqamlezayo (mhlawumbi i-peroxides, i-diamines, i-accelerators yesulfure, njl.njl.) ngexesha lokunyibilika kokudibanisa kunye ne-thermoplastics kubangela i-vulcanizate eqhubekayo ye-matrix ye-thermoplastic eyenziwe nge-dispersed crosslinked rubber kwisigaba, i-dynamic I-vulcanization ikhokelela ekunyuseni kwe-rubber viscosity, ekhuthaza ukuguqulwa kwesigaba kunye nokubonelela nge-multiphase morphology kwi-TPV.I-TPV inezo zombini intsebenzo efana nerubha yokubeka irubha kunye nesantya sokusebenza se-thermoplastics, ebonakaliswa ikakhulu kumgangatho wokusebenza okuphezulu/kwexabiso, uyilo oluguquguqukayo, ubunzima obulula, uluhlu olubanzi lobushushu bokusebenza, ukusetyenzwa lula, umgangatho wemveliso kunye nokuzinza kwe-dimensional kunye ne-recyclable, ngokubanzi. isetyenziswe kwiindawo zemoto, ukwakhiwa kwamandla, izitywina kunye nezinye iindawo.
3. Irabha yeSilicone
Irabha ye-Silicone luhlobo olukhethekileyo lwerabha yokwenziwa eyenziwe nge-polysiloxane yomgca exutywe ne-reinforce fillers, iifayili ezisebenzayo kunye nezongezo, kwaye ibe yi-elastomer efana nenethiwekhi emva kokutshatyalaliswa phantsi kweemeko zokufudumeza kunye noxinzelelo.Inokumelana nobushushu obuphezulu naphantsi, ukumelana nemozulu, ukuxhathisa kwe-ozone, ukunganyangeki kwe-arc, ukugqunywa kombane, ukuxhathisa ukufuma, ukungena komoya okuphezulu kunye ne-inertia ye-physiological.Inoluhlu olubanzi lwezicelo kumashishini anamhlanje, i-elektroniki kunye nombane, iimoto, ulwakhiwo, unyango, ukhathalelo lomntu kunye namanye amasimi, kwaye iye yaba yinto ebaluleke kakhulu yokusebenza okuphezulu kwi-aerospace, ukhuselo kunye neshishini lomkhosi, ukwenziwa ngobukrelekrele kunye nezinye iinkalo. .
4. Irabha yeFluorine
Irabha ye-fluorine ibhekisa kwisixhobo serabha esine-fluorine equlethe iiathom ze-fluorine kwii-athom zekhabhoni zekhonkco eliphambili okanye ityathanga elisecaleni.Iimpawu zayo ezikhethekileyo zichongwa ziimpawu zesakhiwo se-athomu ye-fluorine.Irabha ye-fluorine ingasetyenziswa kuma-250 ° C ixesha elide, kwaye ubushushu benkonzo ephezulu bunokufikelela kuma-300 ° C, ngelixa ubushushu benkonzo eqingqiweyo ye-EPDM yemveli kunye nerabha ye-butyl yi-150 ° C kuphela.Ukongeza kokuxhathisa ubushushu obuphezulu, i-fluororubber inokumelana ne-oyile okugqwesileyo, ukumelana neekhemikhali, ukuxhathisa kwe-asidi kunye ne-alkali, kwaye ukusebenza kwayo okubanzi yeyona nto ilungileyo kuzo zonke izixhobo zerabha elastomer.Isetyenziselwa ikakhulu ukumelana neoyile yeerokethi, imijukujelwa, iinqwelomoya, iinqanawa, iimoto kunye nezinye izithuthi.Iinkalo zenjongo eyodwa ezifana nokutywinwa kunye nemibhobho enganyangekiyo kwi-oyile zizinto eziphambili eziyimfuneko kuqoqosho lwesizwe kunye nokhuselo lwelizwe kunye noshishino lomkhosi.
5. Irabha ye-Acrylate (ACM)
Irubha ye-Acrylate (ACM) yi-elastomer efunyenwe nge-copolymerization ye-acrylate njenge-monomer ephambili.Ikhonkco layo eliphambili yitsheyini yekhabhoni egcweleyo, kwaye amaqela ayo asecaleni ngamaqela e-polar ester.Ngenxa yobume bayo obukhethekileyo, ineempawu ezininzi ezibalaseleyo, ezinjengokumelana nobushushu, ukumelana nokwaluphala, ukuxhathisa kwe-oyile, ukuxhathisa kwe-ozone, ukuxhathisa kwe-UV, njl. , ukuchasana nokuguga kunye nokuxhatshazwa kweoli kuhle kakhulu.kwirabha ye-nitrile.I-ACM isetyenziswa ngokubanzi kwiindawo ezahlukeneyo zobushushu obuphezulu kunye ne-oyile enganyangekiyo, kwaye iye yaba yinto yokutywina ephuhliswe kwaye yakhuthazwa lishishini leemoto kwiminyaka yakutshanje.
Ixesha lokuposa: Sep-27-2022
