{"id":108445,"date":"2026-06-29T10:37:14","date_gmt":"2026-06-29T10:37:14","guid":{"rendered":"https:\/\/stopcarcinogensatwork.eu\/fact\/vlakna-iz-silicijevega-karbida\/"},"modified":"2026-06-29T10:37:14","modified_gmt":"2026-06-29T10:37:14","slug":"vlakna-iz-silicijevega-karbida","status":"publish","type":"fact","link":"https:\/\/stopcarcinogensatwork.eu\/sl\/fact\/vlakna-iz-silicijevega-karbida\/","title":{"rendered":"Vlakna iz silicijevega karbida"},"content":{"rendered":"

Trenutno ni na voljo ocen o \u0161tevilu zaposlenih v EU, ki so izpostavljeni vlaknom silicijevega karbida. Znano pa je, da do exposure prihaja predvsem v panogah, ki se ukvarjajo s proizvodnjo in predelavo silicijevega karbida ter z uporabo materialov, ki vsebujejo silicijev karbid.<\/p>\n

Delovna exposure se pojavlja predvsem z vdihavanjem zra\u010dnih vlaken, ki nastanejo med industrijskimi procesi, kot so delovanje pe\u010di, drobljenje, mletje ali strojna obdelava. Ta vlakna so zelo majhna in lahko ostanejo suspendirana v zraku, zaradi \u010desar jih je enostavno vdihniti.<\/p>\n

Vlakna silicijevega karbida so v skladu z Uredbo o razvr\u0161\u010danju, ozna\u010devanju in pakiranju razvr\u0161\u010dena kot rakotvorne snovi kategorije 1B (lahko povzro\u010dijo raka pri ljudeh z vdihavanjem). Rakotvorni potencial je predvsem povezan z obliko, velikostjo in obstojnostjo vlaken v plju\u010dih.<\/p>\n

Exposure vlaknom silicijevega karbida lahko povzro\u010di resne zdravstvene u\u010dinke. Glavna vrsta raka, opa\u017eena pri zaposlenih, je plju\u010dni rak, zaskrbljujo\u010da pa je tudi mezoteliom.<\/p>\n

Kjer se pojavijo tveganja<\/h2>\n

Poklicna exposure vlaknom silicijevega karbida se pojavlja predvsem v sektorjih, kjer se silicijev karbid proizvaja ali uporablja, vklju\u010dno z izdelavo nekovinskih mineralov, ognjevzdr\u017enih izdelkov, tehni\u010dnih kerami\u010dnih izdelkov, predelavo kovin, proizvodnjo strojev in transportne opreme.<\/p>\n

Zaposleni z najve\u010djim tveganjem za exposure so upravljavci pe\u010di, drobilnic, mlinov ali procesov, proizvodni zaposleni, vzdr\u017eevalno osebje, strojniki, brusilci in polirci kovin ter zaposleni, ki delajo s kompozitnimi materiali. Ti zaposleni so lahko izpostavljeni so\u010dasni exposure drugim rakotvornim snovem, kot so kristalni silicijev dioksid<\/a>, PAH<\/a>, dizelski izpu\u0161ni plini<\/a>, kovine, kot so \u0161estvalentni krom<\/a> ali nikelj<\/a>, azbest<\/a> ali varilni dimi<\/a>. Zaposleni so lahko izpostavljeni med ve\u010d fazami proizvodnje in ravnanja. Naloge, ki vklju\u010dujejo veliko prahu, lahko kontaminirajo tudi obla\u010dila in vodijo do posredne exposure.<\/p>\n

Exposure vlaknom silicijevega karbida se verjetno pojavlja tudi pri proizvodnji motornih vozil in v gradbenem sektorju (npr. upravljavci peskanja).<\/p>\n

Ve\u010d o snovi<\/h2>\n

Vlakna silicijevega karbida so trdna anorganska vlakna, sestavljena iz silicija in ogljika. So izjemno trda, kemi\u010dno stabilna in netopna v vodi ter se lahko med ravnanjem in predelavo sprostijo v zrak kot prah in vlakna.<\/p>\n

Lahko nastanejo nenamerno med proizvodnjo ali pa so namerno proizvedena kot brki za specializirane namene.<\/p>\n

Velikost in oblika vlaken sta klju\u010dnega pomena za zdravstveno tveganje. Vlakna silicijevega karbida imajo obi\u010dajno premer pod 3 mikrometre in dol\u017eino nad 5 mikrometrov. Zaradi svoje majhnosti, podobno kot azbestna vlakna, lahko ob vdihavanju dose\u017eejo najgloblje dele plju\u010d in tam ostanejo dolgo \u010dasa ter se ne izlo\u010dijo zlahka iz telesa.<\/p>\n

Vlakna silicijevega karbida se ve\u010dinoma uporabljajo v visoko zmogljivih kompozitnih materialih, kjer so potrebni visoka trdnost, majhna te\u017ea in odpornost na ekstremne temperature, kot so letalski motorji, vesoljska plovila, obrambne aplikacije, industrijska visokotemperaturna oprema in drugi napredni in\u017eenirski sektorji.<\/p>\n

Zdravstvena tveganja, ki se lahko pojavijo<\/h2>\n

Glavna pot exposure vlaknom silicijevega karbida je vdihavanje.<\/p>\n

Kratkotrajna exposure lahko povzro\u010di dra\u017eenje in vnetje dihalnega sistema.<\/p>\n

Dolgotrajna exposure lahko povzro\u010di plju\u010dnega raka in morda mezoteliom. Drugi resni nekancerogeni u\u010dinki vklju\u010dujejo pnevmokoniozo in kroni\u010dno plju\u010dno bolezen, ki lahko zmanj\u0161ata plju\u010dno funkcijo in povzro\u010dita te\u017eave z dihanjem. Vse te bolezni imajo pogosto dolga latentna obdobja, obi\u010dajno ve\u010d desetletij med exposure in pojavom bolezni.<\/p>\n

Kaj lahko stori\u0161<\/h2>\n

Nadome\u0161\u010danje je treba upo\u0161tevati, kadar koli je to mogo\u010de, z zamenjavo vlaken silicijevega karbida z varnej\u0161imi alternativami ali procesi. Za nekatere aplikacije (npr. komponente za toplotno za\u0161\u010dito, toplotni \u0161\u010diti ali kanali za vro\u010d plin) so bila predlagana oksidna kerami\u010dna vlakna ali neprekinjena ogljikova vlakna kot nadomestki.<\/p>\n

Zaradi lastnosti vlaken silicijevega karbida bi se moralo glavno obvladovanje tveganja osredoto\u010diti na nadzor spro\u0161\u010danja vlaken v zrak in prepre\u010devanje vdihavanja, namesto na nadzor hlapov ali teko\u010din. U\u010dinkovito prezra\u010devanje (splo\u0161no ali lokalno odsesavanje), zatiranje prahu in zadr\u017eevanje so zato bistveni ukrepi na delovnih mestih, kjer se dela z vlakni silicijevega karbida. Organizacijski ukrepi bi morali vklju\u010devati usposabljanje zaposlenih, omejevanje \u010dasa exposure, redno \u010di\u0161\u010denje in spremljanje exposure.<\/p>\n

Zaposleni naj upo\u0161tevajo dobre higienske prakse in uporabljajo osebno varovalno opremo (kot so respiratorji) kot zadnjo mo\u017enost, kadar je to potrebno in po uvedbi mo\u017enih tehni\u010dnih in organizacijskih re\u0161itev. V nekaterih primerih pa je za\u0161\u010dita dihal zaposlenih pred vdihavanjem vlaken silicijevega karbida nujna, na primer pri posegih v pe\u010di ali procesih, ali pri strojni obdelavi\/bru\u0161enju kompozitnih materialov, ki ustvarjajo prah, ki vsebuje vlakna, ki jih je mogo\u010de vdihniti. Delodajalci morajo zagotoviti, da dihanje ni dodatno fizi\u010dno zahtevno (npr. uporabljajo respiratorje s prisilnim dovodom zraka). Zelo priporo\u010dljivo ali obvezno je, v skladu z nacionalno zakonodajo ali prakso, da se za vsako osebo opravi preizkus prileganja, da se zagotovi ustrezna za\u0161\u010dita. Respiratorje je treba redno \u010distiti\/zamenjati.<\/p>\n

Reference: ECHA, IARC, RAC<\/em><\/p>\n","protected":false},"template":"","carcinogens":[8723],"class_list":["post-108445","fact","type-fact","status-publish","hentry","carcinogens-vlakna-iz-silicijevega-karbida"],"yoast_head":"\nVlakna iz silicijevega karbida - STOP carcinogens at work<\/title>\n<meta name=\"description\" content=\"Be aware of what you work with! We collected all the important information these causing substances in easy-to-understand factsheets.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/stopcarcinogensatwork.eu\/sl\/fact\/vlakna-iz-silicijevega-karbida\/\" \/>\n<meta property=\"og:locale\" content=\"sl_SI\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Vlakna iz silicijevega karbida\" \/>\n<meta property=\"og:description\" content=\"Be aware of what you work with! 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