{"id":106400,"date":"2026-06-29T10:37:14","date_gmt":"2026-06-29T10:37:14","guid":{"rendered":"https:\/\/stopcarcinogensatwork.eu\/fact\/silicijeva-karbidna-vlakna\/"},"modified":"2026-06-29T10:37:14","modified_gmt":"2026-06-29T10:37:14","slug":"silicijeva-karbidna-vlakna","status":"publish","type":"fact","link":"https:\/\/stopcarcinogensatwork.eu\/hr\/fact\/silicijeva-karbidna-vlakna\/","title":{"rendered":"Silicijeva karbidna vlakna"},"content":{"rendered":"

Nema procjena trenutnog broja radnika izlo\u017eenih silicijevim karbidnim vlaknima u EU. Me\u0111utim, poznato je da se izlo\u017eenost javlja uglavnom u industrijama koje se bave proizvodnjom i preradom silicijevog karbida te kori\u0161tenjem materijala koji sadr\u017ee silicijev karbid. <\/p>\n

Izlo\u017eenost povezana s radom uglavnom se javlja udisanjem vlakana u zraku nastalih tijekom industrijskih procesa poput rada pe\u0107i, drobljenja, mljevenja ili strojne obrade. Ta su vlakna vrlo mala i mogu ostati suspendirana u zraku, \u0161to ih \u010dini lakim za udisanje. <\/p>\n

Silicijeva karbidna vlakna klasificirana su prema CLP uredbi kao karcinogena kategorija 1B (mogu uzrokovati rak kod ljudi udisanjem). Karcinogeni potencijal uglavnom je povezan s oblikom, veli\u010dinom i perzistencijom vlakana u plu\u0107ima. <\/p>\n

Izlo\u017eenost silicijevim karbidnim vlaknima mo\u017ee dovesti do ozbiljnih zdravstvenih problema. Glavna vrsta raka koja se opa\u017ea kod radnika je rak plu\u0107a, a postoji i zabrinutost zbog mezotelioma. <\/p>\n

Gdje se javljaju rizici<\/h2>\n

Profesionalna izlo\u017eenost vlaknima silicij-karbida javlja se uglavnom u sektorima gdje se silicij-karbid proizvodi ili koristi, uklju\u010duju\u0107i proizvodnju nemetalnih minerala, vatrostalnih proizvoda, tehni\u010dkih kerami\u010dkih proizvoda, obradu metala, proizvodnju strojeva i transportne opreme.<\/p>\n

Zanimanja s najve\u0107im rizikom od izlo\u017eenosti uklju\u010duju operatere pe\u0107i, drobljenja, mljevenja ili procesnih strojeva, proizvodne radnike, osoblje za odr\u017eavanje, strojare, brusioce i polira\u010de metala te radnike koji rukuju kompozitnim materijalima. Ti radnici mogu biti izlo\u017eeni riziku od istovremene izlo\u017eenosti drugim karcinogenima, kao \u0161to su kristalni silicijev dioksid<\/a> , PAH-ovi<\/a> , ispu\u0161ni plinovi dizelskih motora<\/a> , metali poput \u0161esterovalentnog kroma<\/a> ili nikla<\/a> , azbest<\/a> ili isparenja od zavarivanja<\/a> . Radnici mogu biti izlo\u017eeni tijekom nekoliko faza proizvodnje i rukovanja. Poslovi s velikom koli\u010dinom pra\u0161ine tako\u0111er mogu kontaminirati odje\u0107u i dovesti do neizravne izlo\u017eenosti. <\/p>\n

Izlo\u017eenost silicijevim karbidnim vlaknima vjerojatno se javlja i u proizvodnji motornih vozila i u gra\u0111evinskom sektoru (npr. operateri abrazivnog pjeskarenja).<\/p>\n

Vi\u0161e o supstanci<\/h2>\n

Silicij-karbidna vlakna su \u010dvrsta anorganska vlakna sastavljena od silicija i ugljika. Iznimno su tvrda, kemijski stabilna i netopljiva u vodi te se tijekom rukovanja i obrade mogu prenijeti u zrak kao pra\u0161ina i vlakna. <\/p>\n

Mogu se pojaviti nenamjerno tijekom proizvodnje ili se namjerno proizvesti kao brkovi za specijaliziranu upotrebu.<\/p>\n

Veli\u010dina i oblik vlakana klju\u010dni su za zdravstveni rizik. Silicijeva karbidna vlakna obi\u010dno imaju promjer manji od 3 mikrometra i duljinu ve\u0107u od 5 mikrometara. Zbog svoje male veli\u010dine, sli\u010dno azbestnim vlaknima, mogu dosegnuti najdublje dijelove plu\u0107a kada se udahnu i tamo mogu ostati dulje vrijeme te se ne uklanjaju lako iz tijela. <\/p>\n

Silicijeva karbidna vlakna se uglavnom koriste u visokou\u010dinkovitim kompozitnim materijalima gdje je potrebna visoka \u010dvrsto\u0107a, mala te\u017eina i otpornost na ekstremne temperature, kao \u0161to su zrakoplovni motori, svemirske letjelice, obrambene primjene, industrijska oprema za visoke temperature i drugi napredni in\u017eenjerski sektori.<\/p>\n

Zdravstveni rizici koji se mogu pojaviti<\/h2>\n

Glavni put izlo\u017eenosti silicijevim karbidnim vlaknima je udisanje.<\/p>\n

Kratkotrajna izlo\u017eenost mo\u017ee uzrokovati iritaciju i upalu di\u0161nog sustava.<\/p>\n

Dugotrajna izlo\u017eenost mo\u017ee uzrokovati rak plu\u0107a i mogu\u0107e mezoteliom. Ostali ozbiljni nekancerogeni u\u010dinci uklju\u010duju pneumokoniozu i kroni\u010dnu bolest plu\u0107a, koje mogu smanjiti funkciju plu\u0107a i uzrokovati pote\u0161ko\u0107e s disanjem. Sve ove bolesti \u010desto imaju duga razdoblja latencije, obi\u010dno nekoliko desetlje\u0107a izme\u0111u izlo\u017eenosti i po\u010detka bolesti. <\/p>\n

\u0160to mo\u017eete u\u010diniti<\/h2>\n

Zamjenu treba razmotriti gdje god je to mogu\u0107e zamjenom silicij-karbidnih vlakana sigurnijim alternativama ili postupcima. Za neke primjene (npr. komponente toplinske za\u0161tite, toplinski \u0161titovi ili kanali za vru\u0107e plinove) kao zamjene predlo\u017eena su oksidno-kerami\u010dka vlakna ili kontinuirana uglji\u010dna vlakna. <\/p>\n

Zbog svojstava silicij-karbidnih vlakana, glavni fokus upravljanja rizikom trebao bi biti na kontroli osloba\u0111anja vlakana u zrak i sprje\u010davanju udisanja, a ne na kontroli para ili teku\u0107ina. U\u010dinkovita ventilacija (op\u0107enita ili lokalna ventilacija), suzbijanje pra\u0161ine i zadr\u017eavanje stoga su bitne mjere na radnim mjestima gdje se rukuje silicij-karbidnim vlaknima. Organizacijske mjere trebale bi uklju\u010divati \u200b\u200bobuku radnika, ograni\u010davanje vremena izlo\u017eenosti, redovito \u010di\u0161\u0107enje i pra\u0107enje izlo\u017eenosti. <\/p>\n

Radnici bi se trebali pridr\u017eavati dobrih higijenskih praksi i koristiti osobnu za\u0161titnu opremu (poput respiratora) kao krajnje sredstvo kada je to potrebno i nakon uvo\u0111enja mogu\u0107ih in\u017eenjerskih i organizacijskih rje\u0161enja. Me\u0111utim, u nekim slu\u010dajevima, za\u0161tita di\u0161nih puteva radnika od udisanja vlakana silicij-karbida je neophodna, kao \u0161to je slu\u010daj s intervencijama u pe\u0107ima ili procesima ili pri obradi\/bru\u0161enju kompozitnih materijala koji stvaraju pra\u0161inu koja sadr\u017ei respirabilna vlakna. Poslodavci moraju osigurati da disanje nije dodatno fizi\u010dki zahtjevno (npr. koristiti respiratore s pogonom na pro\u010di\u0161\u0107avanje zraka). Preporu\u010duje se ili je obvezno, u skladu s nacionalnim zakonodavstvom ili praksom, da se na svakoj osobi provede test pristajanja kako bi se osigurala odgovaraju\u0107a za\u0161tita. Respiratore je potrebno redovito \u010distiti\/zamjenjivati. <\/p>\n

Reference: ECHA, IARC, RAC<\/em><\/p>\n","protected":false},"template":"","carcinogens":[8552],"class_list":["post-106400","fact","type-fact","status-publish","hentry","carcinogens-silicijeva-karbidna-vlakna"],"yoast_head":"\nSilicijeva karbidna vlakna - 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\/hr\/fact\/silicijeva-karbidna-vlakna\/\" \/>\n<meta property=\"og:locale\" content=\"hr_HR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Silicijeva karbidna vlakna\" \/>\n<meta property=\"og:description\" content=\"Be aware of what you work with! 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