I-Silicones ludidi oluguquguqukayo lweepolymers eziza ngeendlela ezahlukeneyo, zinika amandla amakhulu okwenziwa ngokwezifiso ukuhlangabezana neemfuno ezichanekileyo zecandelo lezonyango kunye ne-aerospace.Iimpawu zabo zibenza bakwazi ukwenza imisebenzi eyahlukahlukeneyo, njengokutywina, ukuthambisa, nokufeza intaphane yeminye imisebenzi.
Ukuguquguquka kwe-silicone kubangelwa iimpawu zayo ezikhethekileyo zomzimba kunye noomatshini, okwenza kube yinto ebalulekileyo kumashishini ahlukeneyo.Eli nqaku liza kuphonononga kwiipropati ezintlanu eziqhelekileyo kunyeUncedo lwe-siliconekwaye uphonononge iiindidi ezine eziphambiliizinto ze-silicone.Ukongeza, siza kuxoxa ngeendlela ezahlukeneyo zokuvelisa kwaye sichaze ukuba kutheni i-silicone inokuba lolona khetho lufanelekileyo kwiimfuno zakho ezithile.
1.Ii-Silicones aziyi kusabela ngamachiza kwaye zibonisa ukungahambi kakuhle kwe-thermal.
Ukuqhawula amatyathanga e-silicon-oksijeni kwiimolekyuli ze-silicone kufuna umthamo omkhulu wamandla.Ngenxa yokuxhathisa okuphezulu kweemolekyuli ze-silicone ukuba zitshintshe, iikhemikhali ezininzi azinawo amandla aneleyo okuphembelela ukusabela kweekhemikhali.Ngenxa yoko, i-silicone ngokuqhelekileyo ayisebenzi ngamachiza.Iibhondi ezizinzileyo kwi-silicone zijongene neempawu zayo ezininzi ezithandekayo.
I-Silicones ngokuqhelekileyo ibonisa ukuhanjiswa kwe-thermal ephantsi ngenxa yesakhiwo sazo se-molecular, esithintela ukusasazwa kwee-vibrations zobushushu phakathi kwee-molecule.Ngelixa le propati inokuba luncedo kwizicelo ezithile, ezifana ne-oven mitts, ingaba ngumda kwezinye iimeko apho ukuhanjiswa kobushushu okusebenzayo kuyimfuneko.Ukujongana nalo mbandela, iifayili ze-thermal conductive zingabandakanywa kwi-silicone formulation ukunyusa ukuhanjiswa kobushushu kunye nokuhlangabezana neemfuno zokusetyenziswa okujoliswe kuyo.
2.I-Silicone inetyhefu ephantsi
I-silicone ngokuqhelekileyo ithathwa njengento engenabungozi kwimpilo yabantu.Zombini iikhompawundi ze-silicone yebakala lokutya kunye nenqanaba lezonyango ziye zavunywa yi-FDA ukuba zisetyenziswe kuqhagamshelwano lokutya kunye nokufakwa kwexesha elide emzimbeni womntu.Nangona kunjalo, nceda ulandele izikhokelo zomenzi xa usebenzisa iimveliso ze-silicone ukuqinisekisa ukhuseleko oluphezulu.
3.I-Silicone inamandla amakhulu okugxotha amanzi
I-Silicone inomgangatho owahlukileyo owaziwa ngokuba yi-hydrophobicity, okuthetha ukuba inamandla angaphakathi okugxotha amanzi.Oku kubangelwa kumaqela e-methyl afakwe kwi-silicon-oxygen polymer chain, engekho-polar kwindalo kwaye ayinayo i-affinity yee-molecule zamanzi.Ngenxa yoko, iimolekyuli zamanzi azikwazi ukusasazeka kwaye zingene kumphezulu we-silicone, kwaye endaweni yoko, zidibanisa kwaye ziqengqeleke.Le propati iphawulekayo yokugxotha amanzi, kunye nekhono le-silicone ukwenza i-adhesive bond eyomeleleyo enemigangatho eyahlukeneyo, yenza iimveliso zokutywina ze-silicone zisebenze ngokukodwa, kunye nezitywina ezinokunyamezela amashumi eminyaka.
4.I-Silicone inokusebenza njenge-insulator kunye ne-conductor yombane.
Irabha yeSilicone ngokuqhelekileyo isebenza njenge-insulator ngenxa yokunqongophala kwee-electron ezifumanekayo zokuthwala iintlawulo.Lo mgangatho uluncedo kakhulu kusetyenziso olwahlukeneyo, ngakumbi kwindawo yezonyango apho ukugquma kubalulekile.Nangona kunjalo, i-silicone inokuguqulwa ukuba iqhube umbane ukuya kwinqanaba elithile kwizicelo ezifana ne-gaskets kunye nezikhuselo ezimileyo.Olu hlengahlengiso lubandakanya ukufaka izihluzi ezifana nekhabhoni, isilivere, okanye ezinye izinto eziqhubayo kwizinto ze-silicone.
I-5.I-Silicone inokumelana okuphezulu kwi-solvents ye-organic compound
I-Silicone ngokuqhelekileyo iyakwazi ukumelana nokuvezwa kwiikhemikhali ezininzi ngenxa yendlela engasebenzi ngayo kunye namandla amancinci angaphezulu.Nangona kunjalo, izinto ezimbalwa ezikhethiweyo ze-inorganic, ngokukodwa i-sulfuric concentrated kunye ne-hydrofluoric acids, inokulimaza i-silicones.Ngokubhekiselele kwiikhompawundi eziphilayo ezinokuthi zisebenze njenge-sol, i-silicones iyakwazi ukuwohloka kuphela emva koqhagamshelwano olude kunye nezinto ezifana ne-toluene, imimoya yamaminerali, i-petroli kunye ne-carbon tetrachloride.
Ukusebenza kweSilicone
Ukuguquguquka kweSilicone kuyenza ibe yimathiriyeli ebalulekileyo kumashishini ahlukeneyo, kubandakanya:
* Iimoto: Ukumelana nobushushu obuphezulu be-Silicone kunye nokuqina kwenza kube yinto efanelekileyo kwimveliso yeemoto.
* I-Aerospace: Iimpawu ezigqwesileyo ze-silicone zokugquma kunye nokumelana nobushushu obugqithisileyo buyenza ibe yimathiriyeli ebalulekileyo kwimveliso yenqwelomoya.
* Iingubo: Iingubo ezisekelwe kwi-silicone zibonelela ngokugqitywa kunye nokungangeni kwamanzi kwiindawo ezahlukeneyo.
* Ukwakhiwa: Ii-silicone sealants kunye ne-adhesives zisetyenziselwa ukwakhiwa kwesakhiwo ukuqinisekisa ukuxhamla umoya kunye nokungena kwamanzi.
* I-Cookware: Iipropathi zeSilicone ezikwaziyo ukumelana nobushushu ziyenza ibe yeyona nto ibalaseleyo kwizinto zokupheka, ezinje ngeemathi zokubhaka kunye nespatula.
* Izithambisi: Izithambisi zesilicone zisetyenziswa kwizinto ezahlukahlukeneyo, kuquka iinjini zemoto, oomatshini bemizi-mveliso, kunye nezixhobo zekhaya.
* I-Electronics: Iimpawu ezigqwesileyo zokugquma kwesilicone zenza ukuba ibe yimathiriyeli ebalulekileyo kwizixhobo zombane, ezinjengeekhompyuter, ii-smartphones, kunye nomabonakude.
* Ukwenza umngundo: Ukuguquguquka kwe-Silicone kunye nokuchaneka kwenza kube yinto efanelekileyo yokwenza izibungu zezicelo ezahlukeneyo, kubandakanywa izixhobo zonyango kunye neengxenye zeemoto.
* Amayeza kunye notyando lokuthambisa: I-Silicone's biocompatibility kunye nokuguquguquka kwezinto ezininzi kuyenza ibe yimathiriyeli ebalulekileyo kufakelo lwezonyango, utyando lokufakelwa, kunye notyando lokuthambisa.
* Izinto zokudlala kunye nezinto azonwabisa ngazo: Ukuba bhetyebhetye kunye nokuqina kweSilicone kuyenza ibe sisixhobo esidumileyo sokwenza izinto zokudlala, imidlalo kunye nezinye izinto zokuzonwabisa.
Iintlobo eziphambili zeSilicone
Iintlobo ezine eziphambili zomzimba okanye iintlobo zeemveliso ze-silicone zidweliswe ngezantsi:
• Room-temperature Vulcanizing (RTV): Ezi silicones ziya kunyanga, okanye zisete, kubushushu begumbi.Ngokuqhelekileyo zisetyenziselwa ukutywinwa kunye nokudibanisa.I-RTV-1 formulations iqala ukunyanga ngokukhawuleza xa idibene nokufuma emoyeni.Ii-silicones ze-RTV-2 ziza njengeekhompawundi ezimbini ezihlukeneyo ukuba umsebenzisi wokugqibela kufuneka adibanise ukuqalisa ukunyanga.Oku kwenza i-RTV-2 ibe bhetyebhetye ngakumbi kwizicelo ezifana nokubumba kunye nokwaleka.
• I-Rubber ye-Silicone ye-Liquid (LSR): I-LSR iqulethe inkqubo yamacandelo amabini, kunye neengqungquthela ezimbini ezidibeneyo ngexesha lokusetyenziswa.Ngokuqhelekileyo unyangwa kwiqondo lokushisa eliphezulu, usebenzisa i-platinum catalyst.Zombini inkqubo yokubumba esetyenzisiweyo kunye neempawu zemveliso yokugqibela ye-LSR zilungelelaniswa kuluhlu olubanzi lwezicelo.
• I-Fluorosilicone Rubber (FSR): Iimolekyuli zeFSR ziquka iiyunithi eziphinda-phindayo ze-silicon-oxygen backbone kunye nezinye iziza zokudibanisa ezihlala ngamanye amaqela e-molecule (amaqela e-methyl kunye ne-fluoroalkyl).Oku kunika imathiriyeli ukuxhathisa okungcono kwiioli kunye namafutha.I-FSR idume ngokutywinwa kwezicelo kwiisethingi zokubhabha.
• Irabha ekwi-High-Consistency Rubber (HCR): I-HCR, ekwabizwa ngokuba “yirubha yokunyanga ubushushu,” iqulathe imixokelelwane ye-silicone yobunzima bemolekyuli ephezulu kakhulu.Izinto ezikrwada ziyakwazi ukwamkela iifayili kunye nezongezo zokufumana iimpawu ezifunwayo.Idla ngokunikezelwa ngendlela enyangekileyo, engathi “yintsika” isongwe kwishiti elishinyeneyo.Ilungele ukusetyenziswa kwizixhobo ezithile zonyango, kuquka iityhubhu, iibhaluni, kunye namashiti.
I-silicone iza kwiimeko ezahlukeneyo zomzimba, ukusuka kulwelo ukuya kokuqinileyo.CUstomer unokwenza udidi olwahlukileyo lwe-silicone ngokomlinganiswa wemveliso ukuze luhambelane neemfuno zeemveliso zokugqibela.
Isishwankathelo
Eli nqaku lihlolisise iimpawu ze-5 ze-silicone, zikhanyise kwiikhemikhali zayo kunye neempawu zomzimba, kwaye zihlolisise iindlela ezahlukeneyo ezinokuthatha kwizicelo zoshishino.
Ukuze ufunde okungakumbi malunga ne-silicone,nceda uqhagamshelane nathi.
Ixesha lokuposa: May-07-2024